diff options
Diffstat (limited to 'src/libid3tag')
50 files changed, 8390 insertions, 0 deletions
diff --git a/src/libid3tag/CHANGES b/src/libid3tag/CHANGES new file mode 100644 index 000000000..4fcc0cd58 --- /dev/null +++ b/src/libid3tag/CHANGES @@ -0,0 +1,75 @@ + + libid3tag - ID3 tag manipulation library + Copyright (C) 2000-2003 Underbit Technologies, Inc. + + $Id: CHANGES,v 1.1 2003/08/14 03:57:13 shank Exp $ + +=============================================================================== + +Version 0.15.0 (beta) + + * Updated to autoconf 2.57, automake 1.7.5, libtool 1.4.3. + + * Added new id3_tag_version(), id3_tag_options(), id3_tag_setlength(), + id3_frame_field(), id3_field_getlatin1(), id3_field_getfulllatin1(), + id3_genre_index(), id3_genre_number(), id3_latin1_ucs4duplicate(), + id3_utf16_ucs4duplicate(), and id3_utf8_ucs4duplicate() API routines. + + * Properly exposed the id3_frame_new(), id3_frame_delete(), and + id3_field_type() API routines. + + * Fixed a possible segmentation fault rendering ID3v1 tags when a tag + field exceeds the field length limit. + + * Fixed a problem whereby the file interface could try to seek and read + data from a non-seekable stream, unrecoverably losing data from the + stream. (N.B. the fix does not work under Win32.) + + * Fixed a problem reading ID3v2.2 frames which corrupted their frame IDs + and caused them not to be re-rendered. + + * Improved rendering of the ID3v1 genre field from ID3v2 genre + names/numbers. The genre "Other" is used in place of non-translatable + genres. + + * Rendering an empty ID3v1 tag now properly returns 0 length even when a + null buffer pointer is passed. + + * Changed the file implementation to maintain information about present + but unparseable tags, instead of ignoring all tags and returning an + error. + + * Added an external dependency on zlib (libz), which is no longer + included. + + * Changed to build a shared library by default. + + * Changed to use native Cygwin build by default; give --host=mingw32 to + `configure' to use MinGW (and avoid a dependency on the Cygwin DLL). + +Version 0.14.2 (beta) + + * Changed Cygwin builds to use MinGW; resulting Win32 executables no + longer have a dependency on Cygwin DLLs. + +Version 0.14.1 (beta) + + * Updated config.guess and config.sub to latest upstream versions. + + * Enabled libtool versioning rather than release numbering. + + * Renamed `libid3' to `libid3tag' and enabled installation as a separate + library. + + * Several other small fixes. + +Version 0.14.0 (beta) + + * Added a new ID3 tag manipulation library (libid3). The required zlib + support is provided either by the host system or by the included static + library implementation (libz). + + * Improved MSVC++ portability and added MSVC++ project files. + +=============================================================================== + diff --git a/src/libid3tag/COPYING b/src/libid3tag/COPYING new file mode 100644 index 000000000..d60c31a97 --- /dev/null +++ b/src/libid3tag/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/src/libid3tag/COPYRIGHT b/src/libid3tag/COPYRIGHT new file mode 100644 index 000000000..c492f8d7a --- /dev/null +++ b/src/libid3tag/COPYRIGHT @@ -0,0 +1,21 @@ + + libid3tag - ID3 tag manipulation library + Copyright (C) 2000-2003 Underbit Technologies, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + If you would like to negotiate alternate licensing terms, you may do + so by contacting: Underbit Technologies, Inc. <info@underbit.com> + diff --git a/src/libid3tag/CREDITS b/src/libid3tag/CREDITS new file mode 100644 index 000000000..888e71f9e --- /dev/null +++ b/src/libid3tag/CREDITS @@ -0,0 +1,28 @@ + + libid3tag - ID3 tag manipulation library + Copyright (C) 2000-2003 Underbit Technologies, Inc. + + $Id: CREDITS,v 1.1 2003/08/14 03:57:13 shank Exp $ + +=============================================================================== + +AUTHOR + + Except where otherwise noted, all code was authored by: + + Robert Leslie <rob@underbit.com> + +CONTRIBUTORS + + Significant contributions have been incorporated with thanks to: + + Mark Malson <mark@mmalson.com> + 2002/10/09: frame.c + - Reported problem reading ID3v2.2 tag frames. + + Brett Paterson <brett@fmod.org> + 2001/10/28: global.h + - Reported missing <assert.h> et al. under MS Embedded Visual C. + +=============================================================================== + diff --git a/src/libid3tag/INSTALL b/src/libid3tag/INSTALL new file mode 100644 index 000000000..50dbe439d --- /dev/null +++ b/src/libid3tag/INSTALL @@ -0,0 +1,183 @@ +Basic Installation +================== + + These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, a file +`config.cache' that saves the results of its tests to speed up +reconfiguring, and a file `config.log' containing compiler output +(useful mainly for debugging `configure'). + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If at some point `config.cache' +contains results you don't want to keep, you may remove or edit it. + + The file `configure.in' is used to create `configure' by a program +called `autoconf'. You only need `configure.in' if you want to change +it or regenerate `configure' using a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. You can give `configure' +initial values for variables by setting them in the environment. Using +a Bourne-compatible shell, you can do that on the command line like +this: + CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure + +Or on systems that have the `env' program, you can do it like this: + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not supports the `VPATH' +variable, you have to compile the package for one architecture at a time +in the source code directory. After you have installed the package for +one architecture, use `make distclean' before reconfiguring for another +architecture. + +Installation Names +================== + + By default, `make install' will install the package's files in +`/usr/local/bin', `/usr/local/man', etc. You can specify an +installation prefix other than `/usr/local' by giving `configure' the +option `--prefix=PATH'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +give `configure' the option `--exec-prefix=PATH', the package will use +PATH as the prefix for installing programs and libraries. +Documentation and other data files will still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=PATH' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + + There may be some features `configure' can not figure out +automatically, but needs to determine by the type of host the package +will run on. Usually `configure' can figure that out, but if it prints +a message saying it can not guess the host type, give it the +`--host=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name with three fields: + CPU-COMPANY-SYSTEM + +See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the host type. + + If you are building compiler tools for cross-compiling, you can also +use the `--target=TYPE' option to select the type of system they will +produce code for and the `--build=TYPE' option to select the type of +system on which you are compiling the package. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Operation Controls +================== + + `configure' recognizes the following options to control how it +operates. + +`--cache-file=FILE' + Use and save the results of the tests in FILE instead of + `./config.cache'. Set FILE to `/dev/null' to disable caching, for + debugging `configure'. + +`--help' + Print a summary of the options to `configure', and exit. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`--version' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`configure' also accepts some other, not widely useful, options. + diff --git a/src/libid3tag/Makefile.am b/src/libid3tag/Makefile.am new file mode 100644 index 000000000..9c22d0845 --- /dev/null +++ b/src/libid3tag/Makefile.am @@ -0,0 +1,123 @@ +## +## libid3tag - ID3 tag manipulation library +## Copyright (C) 2000-2003 Underbit Technologies, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 2 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +## +## $Id: Makefile.am,v 1.1 2003/08/14 03:57:13 shank Exp $ +## + +## Process this file with automake to produce Makefile.in + +SUBDIRS = +#DIST_SUBDIRS = msvc++ + +noinst_LTLIBRARIES = libid3tag.la +noinst_HEADERS = id3tag.h + +## From the libtool documentation on library versioning: +## +## CURRENT +## The most recent interface number that this library implements. +## +## REVISION +## The implementation number of the CURRENT interface. +## +## AGE +## The difference between the newest and oldest interfaces that this +## library implements. In other words, the library implements all the +## interface numbers in the range from number `CURRENT - AGE' to +## `CURRENT'. +## +## If two libraries have identical CURRENT and AGE numbers, then the +## dynamic linker chooses the library with the greater REVISION number. +## +## 1. Start with version information of `0:0:0' for each libtool library. +## +## 2. Update the version information only immediately before a public +## release of your software. More frequent updates are unnecessary, +## and only guarantee that the current interface number gets larger +## faster. +## +## 3. If the library source code has changed at all since the last +## update, then increment REVISION (`C:R:A' becomes `C:r+1:A'). +## +## 4. If any interfaces have been added, removed, or changed since the +## last update, increment CURRENT, and set REVISION to 0. +## +## 5. If any interfaces have been added since the last public release, +## then increment AGE. +## +## 6. If any interfaces have been removed since the last public release, +## then set AGE to 0. + +version_current = 2 +version_revision = 0 +version_age = 2 + +version_info = $(version_current):$(version_revision):$(version_age) + +EXTRA_DIST = genre.dat.sed \ + CHANGES COPYRIGHT CREDITS README TODO VERSION + +if DEBUG +debug = debug.c debug.h +else +debug = +endif + +libid3tag_la_SOURCES = version.c ucs4.c latin1.c utf16.c utf8.c \ + parse.c render.c field.c frametype.c compat.c \ + genre.c frame.c crc.c util.c tag.c file.c \ + version.h ucs4.h latin1.h utf16.h utf8.h \ + parse.h render.h field.h frametype.h compat.h \ + genre.h frame.h crc.h util.h tag.h file.h \ + id3tag.h global.h genre.dat $(debug) + +EXTRA_libid3tag_la_SOURCES = \ + frametype.gperf compat.gperf genre.dat.in \ + debug.c debug.h + +libid3tag_la_LDFLAGS = -version-info $(version_info) + +BUILT_SOURCES = frametype.c compat.c genre.dat + +$(srcdir)/frametype.c: $(srcdir)/frametype.gperf Makefile.am + cd $(srcdir) && \ + gperf -tCcTonD -K id -N id3_frametype_lookup -s -3 -k '*' \ + frametype.gperf | \ + sed -e 's/\(struct id3_frametype\);/\1/' | \ + sed -e '/\$$''Id: /s/\$$//g' >frametype.c + +$(srcdir)/compat.c: $(srcdir)/compat.gperf Makefile.am + cd $(srcdir) && \ + gperf -tCcTonD -K id -N id3_compat_lookup -s -3 -k '*' \ + compat.gperf | \ + sed -e 's/\(struct id3_compat\);/\1/' | \ + sed -e '/\$$''Id: /s/\$$//g' >compat.c + +$(srcdir)/genre.dat: $(srcdir)/genre.dat.in $(srcdir)/genre.dat.sed Makefile.am + cd $(srcdir) && \ + sed -n -f genre.dat.sed genre.dat.in | \ + sed -e '/\$$''Id: /s/\$$//g' >genre.dat + +libtool: $(LIBTOOL_DEPS) + $(SHELL) ./config.status --recheck + +again: + $(MAKE) clean + $(MAKE) + +.PHONY: again diff --git a/src/libid3tag/README b/src/libid3tag/README new file mode 100644 index 000000000..217232d44 --- /dev/null +++ b/src/libid3tag/README @@ -0,0 +1,102 @@ + + libid3tag - ID3 tag manipulation library + Copyright (C) 2000-2003 Underbit Technologies, Inc. + + $Id: README,v 1.1 2003/08/14 03:57:13 shank Exp $ + +=============================================================================== + +INTRODUCTION + + libid3tag is a library for reading and (eventually) writing ID3 tags, both + ID3v1 and the various versions of ID3v2. + + See the file `id3tag.h' for the current library interface. + + This package uses GNU libtool to arrange for zlib to be linked + automatically when you link your programs with this library. If you aren't + using GNU libtool, in some cases you may need to link with zlib + explicitly: + + ${link_command} ... -lid3tag -lz + +=============================================================================== + +BUILDING AND INSTALLING + + Note that this library depends on zlib 1.1.4 or later. If you don't have + zlib already, you can obtain it from: + + http://www.gzip.org/zlib/ + + You must have zlib installed before you can build this package. + +Windows Platforms + + libid3tag can be built under Windows using either MSVC++ or Cygwin. A + MSVC++ project file can be found under the `msvc++' subdirectory. + + To build libid3tag using Cygwin, you will first need to install the Cygwin + tools: + + http://www.cygwin.com/ + + You may then proceed with the following POSIX instructions within the + Cygwin shell. + + Note that by default Cygwin will build a library that depends on the + Cygwin DLL. You can use MinGW to build a library that does not depend on + the Cygwin DLL. To do so, give the option --host=mingw32 to `configure'. + Be certain you also link with a MinGW version of zlib. + +POSIX Platforms (including Cygwin) + + The code is distributed with a `configure' script that will generate for + you a `Makefile' and a `config.h' for your platform. See the file + `INSTALL' for generic instructions. + + The specific options you may want to give `configure' are: + + --disable-debugging do not compile with debugging support, and + use more optimizations + + --disable-shared do not build a shared library + + By default the package will build a shared library if possible for your + platform. If you want only a static library, use --disable-shared. + + If zlib is installed in an unusual place or `configure' can't find it, you + may need to indicate where it is: + + ./configure ... CPPFLAGS="-I${include_dir}" LDFLAGS="-L${lib_dir}" + + where ${include_dir} and ${lib_dir} are the locations of the installed + header and library files, respectively. + +Experimenting and Developing + + Further options for `configure' that may be useful to developers and + experimenters are: + + --enable-debugging enable diagnostic debugging support and + debugging symbols + + --enable-profiling generate `gprof' profiling code + +=============================================================================== + +COPYRIGHT + + Please read the `COPYRIGHT' file for copyright and warranty information. + Also, the file `COPYING' contains the full text of the GNU GPL. + + Send inquiries, comments, bug reports, suggestions, patches, etc. to: + + Underbit Technologies, Inc. <support@underbit.com> + + See also the MAD home page on the Web: + + http://www.underbit.com/products/mad/ + +=============================================================================== + diff --git a/src/libid3tag/TODO b/src/libid3tag/TODO new file mode 100644 index 000000000..36faa7724 --- /dev/null +++ b/src/libid3tag/TODO @@ -0,0 +1,12 @@ + + libid3tag - ID3 tag manipulation library + Copyright (C) 2000-2003 Underbit Technologies, Inc. + + $Id: TODO,v 1.1 2003/08/14 03:57:13 shank Exp $ + +=============================================================================== + +libid3tag: + - finish file API + - fix API headers + diff --git a/src/libid3tag/VERSION b/src/libid3tag/VERSION new file mode 100644 index 000000000..936f63572 --- /dev/null +++ b/src/libid3tag/VERSION @@ -0,0 +1,6 @@ +0.15.0b +configure.ac:24 +id3tag.h:334-337 +msvc++/config.h:57 + +Makefile.am:63-65 diff --git a/src/libid3tag/compat.gperf b/src/libid3tag/compat.gperf new file mode 100644 index 000000000..17eaac162 --- /dev/null +++ b/src/libid3tag/compat.gperf @@ -0,0 +1,297 @@ +%{ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: compat.gperf,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> +# include <string.h> + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include "id3tag.h" +# include "compat.h" +# include "frame.h" +# include "field.h" +# include "parse.h" +# include "ucs4.h" + +# define EQ(id) #id, 0 +# define OBSOLETE 0, 0 +# define TX(id) #id, translate_##id + +static id3_compat_func_t translate_TCON; +%} +struct id3_compat; +%% +# +# ID3v2.2 and ID3v2.3 frames +# +# Only obsolete frames or frames with an equivalent ID3v2.4 frame ID are +# listed here. If a frame ID is not listed, it is assumed that the same +# frame ID is itself the equivalent ID3v2.4 frame ID. +# +# This list may also include frames with new content interpretations; the +# translation function will rewrite the contents to comply with ID3v2.4. +# +BUF, EQ(RBUF) /* Recommended buffer size */ +CNT, EQ(PCNT) /* Play counter */ +COM, EQ(COMM) /* Comments */ +CRA, EQ(AENC) /* Audio encryption */ +CRM, OBSOLETE /* Encrypted meta frame [obsolete] */ +EQU, OBSOLETE /* Equalization [obsolete] */ +EQUA, OBSOLETE /* Equalization [obsolete] */ +ETC, EQ(ETCO) /* Event timing codes */ +GEO, EQ(GEOB) /* General encapsulated object */ +IPL, EQ(TIPL) /* Involved people list */ +IPLS, EQ(TIPL) /* Involved people list */ +LNK, EQ(LINK) /* Linked information */ +MCI, EQ(MCDI) /* Music CD identifier */ +MLL, EQ(MLLT) /* MPEG location lookup table */ +PIC, EQ(APIC) /* Attached picture */ +POP, EQ(POPM) /* Popularimeter */ +REV, EQ(RVRB) /* Reverb */ +RVA, OBSOLETE /* Relative volume adjustment [obsolete] */ +RVAD, OBSOLETE /* Relative volume adjustment [obsolete] */ +SLT, EQ(SYLT) /* Synchronised lyric/text */ +STC, EQ(SYTC) /* Synchronised tempo codes */ +TAL, EQ(TALB) /* Album/movie/show title */ +TBP, EQ(TBPM) /* BPM (beats per minute) */ +TCM, EQ(TCOM) /* Composer */ +TCO, TX(TCON) /* Content type */ +TCON, TX(TCON) /* Content type */ +TCR, EQ(TCOP) /* Copyright message */ +TDA, OBSOLETE /* Date [obsolete] */ +TDAT, OBSOLETE /* Date [obsolete] */ +TDY, EQ(TDLY) /* Playlist delay */ +TEN, EQ(TENC) /* Encoded by */ +TFT, EQ(TFLT) /* File type */ +TIM, OBSOLETE /* Time [obsolete] */ +TIME, OBSOLETE /* Time [obsolete] */ +TKE, EQ(TKEY) /* Initial key */ +TLA, EQ(TLAN) /* Language(s) */ +TLE, EQ(TLEN) /* Length */ +TMT, EQ(TMED) /* Media type */ +TOA, EQ(TOPE) /* Original artist(s)/performer(s) */ +TOF, EQ(TOFN) /* Original filename */ +TOL, EQ(TOLY) /* Original lyricist(s)/text writer(s) */ +TOR, EQ(TDOR) /* Original release year [obsolete] */ +TORY, EQ(TDOR) /* Original release year [obsolete] */ +TOT, EQ(TOAL) /* Original album/movie/show title */ +TP1, EQ(TPE1) /* Lead performer(s)/soloist(s) */ +TP2, EQ(TPE2) /* Band/orchestra/accompaniment */ +TP3, EQ(TPE3) /* Conductor/performer refinement */ +TP4, EQ(TPE4) /* Interpreted, remixed, or otherwise modified by */ +TPA, EQ(TPOS) /* Part of a set */ +TPB, EQ(TPUB) /* Publisher */ +TRC, EQ(TSRC) /* ISRC (international standard recording code) */ +TRD, OBSOLETE /* Recording dates [obsolete] */ +TRDA, OBSOLETE /* Recording dates [obsolete] */ +TRK, EQ(TRCK) /* Track number/position in set */ +TSI, OBSOLETE /* Size [obsolete] */ +TSIZ, OBSOLETE /* Size [obsolete] */ +TSS, EQ(TSSE) /* Software/hardware and settings used for encoding */ +TT1, EQ(TIT1) /* Content group description */ +TT2, EQ(TIT2) /* Title/songname/content description */ +TT3, EQ(TIT3) /* Subtitle/description refinement */ +TXT, EQ(TEXT) /* Lyricist/text writer */ +TXX, EQ(TXXX) /* User defined text information frame */ +TYE, OBSOLETE /* Year [obsolete] */ +TYER, OBSOLETE /* Year [obsolete] */ +UFI, EQ(UFID) /* Unique file identifier */ +ULT, EQ(USLT) /* Unsynchronised lyric/text transcription */ +WAF, EQ(WOAF) /* Official audio file webpage */ +WAR, EQ(WOAR) /* Official artist/performer webpage */ +WAS, EQ(WOAS) /* Official audio source webpage */ +WCM, EQ(WCOM) /* Commercial information */ +WCP, EQ(WCOP) /* Copyright/legal information */ +WPB, EQ(WPUB) /* Publishers official webpage */ +WXX, EQ(WXXX) /* User defined URL link frame */ +%% + +static +int translate_TCON(struct id3_frame *frame, char const *oldid, + id3_byte_t const *data, id3_length_t length) +{ + id3_byte_t const *end; + enum id3_field_textencoding encoding; + id3_ucs4_t *string = 0, *ptr, *endptr; + int result = 0; + + /* translate old TCON syntax into multiple strings */ + + assert(frame->nfields == 2); + + encoding = ID3_FIELD_TEXTENCODING_ISO_8859_1; + + end = data + length; + + if (id3_field_parse(&frame->fields[0], &data, end - data, &encoding) == -1) + goto fail; + + string = id3_parse_string(&data, end - data, encoding, 0); + if (string == 0) + goto fail; + + ptr = string; + while (*ptr == '(') { + if (*++ptr == '(') + break; + + endptr = ptr; + while (*endptr && *endptr != ')') + ++endptr; + + if (*endptr) + *endptr++ = 0; + + if (id3_field_addstring(&frame->fields[1], ptr) == -1) + goto fail; + + ptr = endptr; + } + + if (*ptr && id3_field_addstring(&frame->fields[1], ptr) == -1) + goto fail; + + if (0) { + fail: + result = -1; + } + + if (string) + free(string); + + return result; +} + +/* + * NAME: compat->fixup() + * DESCRIPTION: finish compatibility translations + */ +int id3_compat_fixup(struct id3_tag *tag) +{ + struct id3_frame *frame; + unsigned int index; + id3_ucs4_t timestamp[17] = { 0 }; + int result = 0; + + /* create a TDRC frame from obsolete TYER/TDAT/TIME frames */ + + /* + * TYE/TYER: YYYY + * TDA/TDAT: DDMM + * TIM/TIME: HHMM + * + * TDRC: yyyy-MM-ddTHH:mm + */ + + index = 0; + while ((frame = id3_tag_findframe(tag, ID3_FRAME_OBSOLETE, index++))) { + char const *id; + id3_byte_t const *data, *end; + id3_length_t length; + enum id3_field_textencoding encoding; + id3_ucs4_t *string; + + id = id3_field_getframeid(&frame->fields[0]); + assert(id); + + if (strcmp(id, "TYER") != 0 && strcmp(id, "YTYE") != 0 && + strcmp(id, "TDAT") != 0 && strcmp(id, "YTDA") != 0 && + strcmp(id, "TIME") != 0 && strcmp(id, "YTIM") != 0) + continue; + + data = id3_field_getbinarydata(&frame->fields[1], &length); + assert(data); + + if (length < 1) + continue; + + end = data + length; + + encoding = id3_parse_uint(&data, 1); + string = id3_parse_string(&data, end - data, encoding, 0); + + if (id3_ucs4_length(string) < 4) { + free(string); + continue; + } + + if (strcmp(id, "TYER") == 0 || + strcmp(id, "YTYE") == 0) { + timestamp[0] = string[0]; + timestamp[1] = string[1]; + timestamp[2] = string[2]; + timestamp[3] = string[3]; + } + else if (strcmp(id, "TDAT") == 0 || + strcmp(id, "YTDA") == 0) { + timestamp[4] = '-'; + timestamp[5] = string[2]; + timestamp[6] = string[3]; + timestamp[7] = '-'; + timestamp[8] = string[0]; + timestamp[9] = string[1]; + } + else { /* TIME or YTIM */ + timestamp[10] = 'T'; + timestamp[11] = string[0]; + timestamp[12] = string[1]; + timestamp[13] = ':'; + timestamp[14] = string[2]; + timestamp[15] = string[3]; + } + + free(string); + } + + if (timestamp[0]) { + id3_ucs4_t *strings; + + frame = id3_frame_new("TDRC"); + if (frame == 0) + goto fail; + + strings = timestamp; + + if (id3_field_settextencoding(&frame->fields[0], + ID3_FIELD_TEXTENCODING_ISO_8859_1) == -1 || + id3_field_setstrings(&frame->fields[1], 1, &strings) == -1 || + id3_tag_attachframe(tag, frame) == -1) { + id3_frame_delete(frame); + goto fail; + } + } + + if (0) { + fail: + result = -1; + } + + return result; +} diff --git a/src/libid3tag/compat.h b/src/libid3tag/compat.h new file mode 100644 index 000000000..5d980eea4 --- /dev/null +++ b/src/libid3tag/compat.h @@ -0,0 +1,41 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: compat.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_COMPAT_H +# define LIBID3TAG_COMPAT_H + +# include "id3tag.h" + +typedef int id3_compat_func_t(struct id3_frame *, char const *, + id3_byte_t const *, id3_length_t); + +struct id3_compat { + char const *id; + char const *equiv; + id3_compat_func_t *translate; +}; + +struct id3_compat const *id3_compat_lookup(register char const *, + register unsigned int); + +int id3_compat_fixup(struct id3_tag *); + +# endif diff --git a/src/libid3tag/config.h.in b/src/libid3tag/config.h.in new file mode 100644 index 000000000..b4f0f8997 --- /dev/null +++ b/src/libid3tag/config.h.in @@ -0,0 +1,77 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define to enable diagnostic debugging support. */ +#undef DEBUG + +/* Define to 1 if you have the <assert.h> header file. */ +#undef HAVE_ASSERT_H + +/* Define to 1 if you have the <dlfcn.h> header file. */ +#undef HAVE_DLFCN_H + +/* Define to 1 if you have the `ftruncate' function. */ +#undef HAVE_FTRUNCATE + +/* Define to 1 if you have the <inttypes.h> header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have the `z' library (-lz). */ +#undef HAVE_LIBZ + +/* Define to 1 if you have the <memory.h> header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the <stdint.h> header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the <stdlib.h> header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the <strings.h> header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the <string.h> header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the <unistd.h> header file. */ +#undef HAVE_UNISTD_H + +/* Define to disable debugging assertions. */ +#undef NDEBUG + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Version number of package */ +#undef VERSION + +/* Define to empty if `const' does not conform to ANSI C. */ +#undef const + +/* Define as `__inline' if that's what the C compiler calls it, or to nothing + if it is not supported. */ +#undef inline diff --git a/src/libid3tag/configure.ac b/src/libid3tag/configure.ac new file mode 100644 index 000000000..9923cd362 --- /dev/null +++ b/src/libid3tag/configure.ac @@ -0,0 +1,205 @@ +dnl -*- m4 -*- +dnl +dnl libid3tag - ID3 tag manipulation library +dnl Copyright (C) 2000-2003 Underbit Technologies, Inc. +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 2 of the License, or +dnl (at your option) any later version. +dnl +dnl This program is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software +dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +dnl +AC_REVISION([$Id: configure.ac,v 1.1 2003/08/14 03:57:13 shank Exp $])dnl + +dnl Process this file with autoconf to produce a configure script. + +AC_INIT([ID3 Tag], [0.15.0b], [support@underbit.com], [libid3tag]) +AC_PREREQ(2.53) + +AC_CONFIG_SRCDIR([id3tag.h]) + +AM_INIT_AUTOMAKE + +AM_CONFIG_HEADER([config.h]) + +dnl System type. + +AC_CANONICAL_HOST + +dnl Checks for programs. + +AC_PROG_CC + +if test "$GCC" = yes +then + case "$host" in + *-*-mingw*) + case "$build" in + *-*-cygwin*) + CPPFLAGS="$CPPFLAGS -mno-cygwin" + LDFLAGS="$LDFLAGS -mno-cygwin" + ;; + esac + esac + +dnl case "$host" in +dnl *-*-cygwin* | *-*-mingw*) +dnl LDFLAGS="$LDFLAGS -no-undefined -mdll" +dnl ;; +dnl esac +fi + +dnl Support for libtool. + +AC_DISABLE_SHARED +dnl AC_LIBTOOL_WIN32_DLL +AC_PROG_LIBTOOL + +AC_SUBST(LIBTOOL_DEPS) + +dnl Compiler options. + +arch="" +debug="" +optimize="" +profile="" + +set -- $CFLAGS +CFLAGS="" + +if test "$GCC" = yes +then + CFLAGS="-Wall" +fi + +while test $# -gt 0 +do + case "$1" in + -Wall) + if test "$GCC" = yes + then + : + else + CFLAGS="$CFLAGS $1" + fi + shift + ;; + -g) + debug="-g" + shift + ;; + -mno-cygwin) + shift + ;; + -m*) + arch="$arch $1" + shift + ;; + -fomit-frame-pointer) + shift + ;; + -O*|-f*) + optimize="$1" + shift + ;; + *) + CFLAGS="$CFLAGS $1" + shift + ;; + esac +done + +dnl Checks for header files. + +AC_HEADER_STDC +AC_CHECK_HEADERS(assert.h unistd.h) + +AC_CHECK_HEADER(zlib.h, [], [ + AC_MSG_ERROR([zlib.h was not found +*** You must first install zlib (libz) before you can build this package. +*** If zlib is already installed, you may need to use the CPPFLAGS +*** environment variable to specify its installed location, e.g. -I<dir>.]) +]) + +dnl Checks for typedefs, structures, and compiler characteristics. + +AC_C_CONST +AC_C_INLINE + +dnl Checks for library functions. + +AC_CHECK_FUNCS(ftruncate) + +AC_CHECK_LIB(z, compress2, [], [ + AC_MSG_ERROR([libz was not found +*** You must first install zlib (libz) before you can build this package. +*** If zlib is already installed, you may need to use the LDFLAGS +*** environment variable to specify its installed location, e.g. -L<dir>.]) +]) + +dnl handle --enable and --disable options + +AC_CACHE_SAVE + +AC_MSG_CHECKING([whether to enable profiling]) +AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling], + [generate profiling code]), +[ + case "$enableval" in + yes) profile="-pg" ;; + esac +]) +AC_MSG_RESULT(${enable_profiling-no}) + +AC_MSG_CHECKING([whether to enable debugging]) +AC_ARG_ENABLE(debugging, AC_HELP_STRING([--enable-debugging], + [enable diagnostic debugging support]) +AC_HELP_STRING([--disable-debugging], + [do not enable debugging and use more optimization]), +[ + case "$enableval" in + yes) + AC_DEFINE(DEBUG, 1, + [Define to enable diagnostic debugging support.]) + optimize="" + ;; + no) + if test -n "$profile" + then + AC_MSG_ERROR(--enable-profiling and --disable-debugging are incompatible) + fi + + AC_DEFINE(NDEBUG, 1, + [Define to disable debugging assertions.]) + debug="" + if test "$GCC" = yes + then + optimize="$optimize -fomit-frame-pointer" + fi + ;; + esac +]) +AC_MSG_RESULT(${enable_debugging-default}) +AM_CONDITIONAL(DEBUG, test ${enable_debugging-default} = yes) + +dnl Create output files. + +test -n "$arch" && CFLAGS="$CFLAGS $arch" +test -n "$debug" && CFLAGS="$CFLAGS $debug" +test -n "$optimize" && CFLAGS="$CFLAGS $optimize" +test -n "$profile" && CFLAGS="$CFLAGS $profile" LDFLAGS="$LDFLAGS $profile" + +dnl LTLIBOBJS=`echo "$LIBOBJS" | sed -e 's/\.o/.lo/g'` +dnl AC_SUBST(LTLIBOBJS) + +AC_CONFIG_FILES([Makefile \ + libid3tag.list]) +AC_OUTPUT diff --git a/src/libid3tag/crc.c b/src/libid3tag/crc.c new file mode 100644 index 000000000..76e78ea45 --- /dev/null +++ b/src/libid3tag/crc.c @@ -0,0 +1,137 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: crc.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include "id3tag.h" +# include "crc.h" + +static +unsigned long const crc_table[256] = { + 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, + 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L, + 0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, + 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L, + 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, + 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, + 0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, + 0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L, + + 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L, + 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, + 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, + 0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, + 0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L, + 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL, + 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, + 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, + + 0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL, + 0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L, + 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L, + 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, + 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, + 0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, + 0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL, + 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L, + + 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, + 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, + 0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, + 0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L, + 0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L, + 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, + 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, + 0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, + + 0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL, + 0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L, + 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, + 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, + 0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, + 0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L, + 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL, + 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, + + 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, + 0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, + 0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L, + 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L, + 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, + 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, + 0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, + 0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL, + + 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL, + 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, + 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, + 0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, + 0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL, + 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L, + 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, + 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, + + 0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, + 0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL, + 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L, + 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, + 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, + 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL, + 0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, + 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL +}; + +/* + * NAME: crc->calculate() + * DESCRIPTION: compute CRC-32 value (ISO 3309) + */ +unsigned long id3_crc_calculate(id3_byte_t const *data, id3_length_t length) +{ + register unsigned long crc; + + for (crc = 0xffffffffL; length >= 8; length -= 8) { + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + } + + switch (length) { + case 7: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 6: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 5: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 4: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 3: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 2: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 1: crc = crc_table[(crc ^ *data++) & 0xff] ^ (crc >> 8); + case 0: break; + } + + return crc ^ 0xffffffffL; +} diff --git a/src/libid3tag/crc.h b/src/libid3tag/crc.h new file mode 100644 index 000000000..6ff639053 --- /dev/null +++ b/src/libid3tag/crc.h @@ -0,0 +1,29 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: crc.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_CRC_H +# define LIBID3TAG_CRC_H + +# include "id3tag.h" + +unsigned long id3_crc_calculate(id3_byte_t const *, id3_length_t); + +# endif diff --git a/src/libid3tag/debug.c b/src/libid3tag/debug.c new file mode 100644 index 000000000..78b11bba3 --- /dev/null +++ b/src/libid3tag/debug.c @@ -0,0 +1,222 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: debug.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# undef malloc +# undef calloc +# undef realloc +# undef free + +# include <stdio.h> +# include <stdlib.h> +# include <string.h> + +# include "debug.h" + +# if defined(DEBUG) + +# define DEBUG_MAGIC 0xdeadbeefL + +struct debug { + char const *file; + unsigned int line; + size_t size; + struct debug *next; + struct debug *prev; + long int magic; +}; + +static struct debug *allocated; +static int registered; + +static +void check(void) +{ + struct debug *debug; + + for (debug = allocated; debug; debug = debug->next) { + if (debug->magic != DEBUG_MAGIC) { + fprintf(stderr, "memory corruption\n"); + break; + } + + fprintf(stderr, "%s:%u: leaked %lu bytes\n", + debug->file, debug->line, debug->size); + } +} + +void *id3_debug_malloc(size_t size, char const *file, unsigned int line) +{ + struct debug *debug; + + if (!registered) { + atexit(check); + registered = 1; + } + + if (size == 0) + fprintf(stderr, "%s:%u: malloc(0)\n", file, line); + + debug = malloc(sizeof(*debug) + size); + if (debug == 0) { + fprintf(stderr, "%s:%u: malloc(%lu) failed\n", file, line, size); + return 0; + } + + debug->magic = DEBUG_MAGIC; + + debug->file = file; + debug->line = line; + debug->size = size; + + debug->next = allocated; + debug->prev = 0; + + if (allocated) + allocated->prev = debug; + + allocated = debug; + + return ++debug; +} + +void *id3_debug_calloc(size_t nmemb, size_t size, + char const *file, unsigned int line) +{ + void *ptr; + + ptr = id3_debug_malloc(nmemb * size, file, line); + if (ptr) + memset(ptr, 0, nmemb * size); + + return ptr; +} + +void *id3_debug_realloc(void *ptr, size_t size, + char const *file, unsigned int line) +{ + struct debug *debug, *new; + + if (size == 0) { + id3_debug_free(ptr, file, line); + return 0; + } + + if (ptr == 0) + return id3_debug_malloc(size, file, line); + + debug = ptr; + --debug; + + if (debug->magic != DEBUG_MAGIC) { + fprintf(stderr, "%s:%u: realloc(%p, %lu) memory not allocated\n", + file, line, ptr, size); + return 0; + } + + new = realloc(debug, sizeof(*debug) + size); + if (new == 0) { + fprintf(stderr, "%s:%u: realloc(%p, %lu) failed\n", file, line, ptr, size); + return 0; + } + + if (allocated == debug) + allocated = new; + + debug = new; + + debug->file = file; + debug->line = line; + debug->size = size; + + if (debug->next) + debug->next->prev = debug; + if (debug->prev) + debug->prev->next = debug; + + return ++debug; +} + +void id3_debug_free(void *ptr, char const *file, unsigned int line) +{ + struct debug *debug; + + if (ptr == 0) { + fprintf(stderr, "%s:%u: free(0)\n", file, line); + return; + } + + debug = ptr; + --debug; + + if (debug->magic != DEBUG_MAGIC) { + fprintf(stderr, "%s:%u: free(%p) memory not allocated\n", file, line, ptr); + return; + } + + debug->magic = 0; + + if (debug->next) + debug->next->prev = debug->prev; + if (debug->prev) + debug->prev->next = debug->next; + + if (allocated == debug) + allocated = debug->next; + + free(debug); +} + +void *id3_debug_release(void *ptr, char const *file, unsigned int line) +{ + struct debug *debug; + + if (ptr == 0) + return 0; + + debug = ptr; + --debug; + + if (debug->magic != DEBUG_MAGIC) { + fprintf(stderr, "%s:%u: release(%p) memory not allocated\n", + file, line, ptr); + return ptr; + } + + if (debug->next) + debug->next->prev = debug->prev; + if (debug->prev) + debug->prev->next = debug->next; + + if (allocated == debug) + allocated = debug->next; + + memmove(debug, debug + 1, debug->size); + + return debug; +} + +# endif diff --git a/src/libid3tag/debug.h b/src/libid3tag/debug.h new file mode 100644 index 000000000..dc5b4997c --- /dev/null +++ b/src/libid3tag/debug.h @@ -0,0 +1,35 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: debug.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_DEBUG_H +# define LIBID3TAG_DEBUG_H + +# include <stdlib.h> + +void *id3_debug_malloc(size_t, char const *, unsigned int); +void *id3_debug_calloc(size_t, size_t, + char const *file, unsigned int line); +void *id3_debug_realloc(void *, size_t, char const *, unsigned int); +void id3_debug_free(void *, char const *, unsigned int); + +void *id3_debug_release(void *, char const *, unsigned int); + +# endif diff --git a/src/libid3tag/field.c b/src/libid3tag/field.c new file mode 100644 index 000000000..a7b413edb --- /dev/null +++ b/src/libid3tag/field.c @@ -0,0 +1,875 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: field.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> +# include <string.h> + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include "id3tag.h" +# include "field.h" +# include "frame.h" +# include "render.h" +# include "ucs4.h" +# include "latin1.h" +# include "parse.h" + +/* + * NAME: field->init() + * DESCRIPTION: initialize a field to a default value for the given type + */ +void id3_field_init(union id3_field *field, enum id3_field_type type) +{ + assert(field); + + switch (field->type = type) { + case ID3_FIELD_TYPE_TEXTENCODING: + case ID3_FIELD_TYPE_INT8: + case ID3_FIELD_TYPE_INT16: + case ID3_FIELD_TYPE_INT24: + case ID3_FIELD_TYPE_INT32: + field->number.value = 0; + break; + + case ID3_FIELD_TYPE_LATIN1: + case ID3_FIELD_TYPE_LATIN1FULL: + field->latin1.ptr = 0; + break; + + case ID3_FIELD_TYPE_LATIN1LIST: + field->latin1list.nstrings = 0; + field->latin1list.strings = 0; + + case ID3_FIELD_TYPE_STRING: + case ID3_FIELD_TYPE_STRINGFULL: + field->string.ptr = 0; + break; + + case ID3_FIELD_TYPE_STRINGLIST: + field->stringlist.nstrings = 0; + field->stringlist.strings = 0; + break; + + case ID3_FIELD_TYPE_LANGUAGE: + strcpy(field->immediate.value, "XXX"); + break; + + case ID3_FIELD_TYPE_FRAMEID: + strcpy(field->immediate.value, "XXXX"); + break; + + case ID3_FIELD_TYPE_DATE: + memset(field->immediate.value, 0, sizeof(field->immediate.value)); + break; + + case ID3_FIELD_TYPE_INT32PLUS: + case ID3_FIELD_TYPE_BINARYDATA: + field->binary.data = 0; + field->binary.length = 0; + break; + } +} + +/* + * NAME: field->finish() + * DESCRIPTION: reset a field, deallocating memory if necessary + */ +void id3_field_finish(union id3_field *field) +{ + unsigned int i; + + assert(field); + + switch (field->type) { + case ID3_FIELD_TYPE_TEXTENCODING: + case ID3_FIELD_TYPE_INT8: + case ID3_FIELD_TYPE_INT16: + case ID3_FIELD_TYPE_INT24: + case ID3_FIELD_TYPE_INT32: + case ID3_FIELD_TYPE_LANGUAGE: + case ID3_FIELD_TYPE_FRAMEID: + case ID3_FIELD_TYPE_DATE: + break; + + case ID3_FIELD_TYPE_LATIN1: + case ID3_FIELD_TYPE_LATIN1FULL: + if (field->latin1.ptr) + free(field->latin1.ptr); + break; + + case ID3_FIELD_TYPE_LATIN1LIST: + for (i = 0; i < field->latin1list.nstrings; ++i) + free(field->latin1list.strings[i]); + + if (field->latin1list.strings) + free(field->latin1list.strings); + break; + + case ID3_FIELD_TYPE_STRING: + case ID3_FIELD_TYPE_STRINGFULL: + if (field->string.ptr) + free(field->string.ptr); + break; + + case ID3_FIELD_TYPE_STRINGLIST: + for (i = 0; i < field->stringlist.nstrings; ++i) + free(field->stringlist.strings[i]); + + if (field->stringlist.strings) + free(field->stringlist.strings); + break; + + case ID3_FIELD_TYPE_INT32PLUS: + case ID3_FIELD_TYPE_BINARYDATA: + if (field->binary.data) + free(field->binary.data); + break; + } + + id3_field_init(field, field->type); +} + +/* + * NAME: field->type() + * DESCRIPTION: return the value type of a field + */ +enum id3_field_type id3_field_type(union id3_field const *field) +{ + assert(field); + + return field->type; +} + +/* + * NAME: field->parse() + * DESCRIPTION: parse a field value + */ +int id3_field_parse(union id3_field *field, id3_byte_t const **ptr, + id3_length_t length, enum id3_field_textencoding *encoding) +{ + assert(field); + + id3_field_finish(field); + + switch (field->type) { + case ID3_FIELD_TYPE_INT32: + if (length < 4) + goto fail; + + field->number.value = id3_parse_uint(ptr, 4); + break; + + case ID3_FIELD_TYPE_INT24: + if (length < 3) + goto fail; + + field->number.value = id3_parse_uint(ptr, 3); + break; + + case ID3_FIELD_TYPE_INT16: + if (length < 2) + goto fail; + + field->number.value = id3_parse_uint(ptr, 2); + break; + + case ID3_FIELD_TYPE_INT8: + case ID3_FIELD_TYPE_TEXTENCODING: + if (length < 1) + goto fail; + + field->number.value = id3_parse_uint(ptr, 1); + + if (field->type == ID3_FIELD_TYPE_TEXTENCODING) + *encoding = field->number.value; + break; + + case ID3_FIELD_TYPE_LANGUAGE: + if (length < 3) + goto fail; + + id3_parse_immediate(ptr, 3, field->immediate.value); + break; + + case ID3_FIELD_TYPE_FRAMEID: + if (length < 4) + goto fail; + + id3_parse_immediate(ptr, 4, field->immediate.value); + break; + + case ID3_FIELD_TYPE_DATE: + if (length < 8) + goto fail; + + id3_parse_immediate(ptr, 8, field->immediate.value); + break; + + case ID3_FIELD_TYPE_LATIN1: + case ID3_FIELD_TYPE_LATIN1FULL: + { + id3_latin1_t *latin1; + + latin1 = id3_parse_latin1(ptr, length, + field->type == ID3_FIELD_TYPE_LATIN1FULL); + if (latin1 == 0) + goto fail; + + field->latin1.ptr = latin1; + } + break; + + case ID3_FIELD_TYPE_LATIN1LIST: + { + id3_byte_t const *end; + id3_latin1_t *latin1, **strings; + + end = *ptr + length; + + while (end - *ptr > 0) { + latin1 = id3_parse_latin1(ptr, end - *ptr, 0); + if (latin1 == 0) + goto fail; + + strings = realloc(field->latin1list.strings, + (field->latin1list.nstrings + 1) * sizeof(*strings)); + if (strings == 0) { + free(latin1); + goto fail; + } + + field->latin1list.strings = strings; + field->latin1list.strings[field->latin1list.nstrings++] = latin1; + } + } + break; + + case ID3_FIELD_TYPE_STRING: + case ID3_FIELD_TYPE_STRINGFULL: + { + id3_ucs4_t *ucs4; + + ucs4 = id3_parse_string(ptr, length, *encoding, + field->type == ID3_FIELD_TYPE_STRINGFULL); + if (ucs4 == 0) + goto fail; + + field->string.ptr = ucs4; + } + break; + + case ID3_FIELD_TYPE_STRINGLIST: + { + id3_byte_t const *end; + id3_ucs4_t *ucs4, **strings; + + end = *ptr + length; + + while (end - *ptr > 0) { + ucs4 = id3_parse_string(ptr, end - *ptr, *encoding, 0); + if (ucs4 == 0) + goto fail; + + strings = realloc(field->stringlist.strings, + (field->stringlist.nstrings + 1) * sizeof(*strings)); + if (strings == 0) { + free(ucs4); + goto fail; + } + + field->stringlist.strings = strings; + field->stringlist.strings[field->stringlist.nstrings++] = ucs4; + } + } + break; + + case ID3_FIELD_TYPE_INT32PLUS: + case ID3_FIELD_TYPE_BINARYDATA: + { + id3_byte_t *data; + + data = id3_parse_binary(ptr, length); + if (data == 0) + goto fail; + + field->binary.data = data; + field->binary.length = length; + } + break; + } + + return 0; + + fail: + return -1; +} + +/* + * NAME: field->render() + * DESCRIPTION: render a field value + */ +id3_length_t id3_field_render(union id3_field const *field, id3_byte_t **ptr, + enum id3_field_textencoding *encoding, + int terminate) +{ + id3_length_t size; + unsigned int i; + + assert(field && encoding); + + switch (field->type) { + case ID3_FIELD_TYPE_INT32: + return id3_render_int(ptr, field->number.value, 4); + + case ID3_FIELD_TYPE_INT24: + return id3_render_int(ptr, field->number.value, 3); + + case ID3_FIELD_TYPE_INT16: + return id3_render_int(ptr, field->number.value, 2); + + case ID3_FIELD_TYPE_TEXTENCODING: + *encoding = field->number.value; + case ID3_FIELD_TYPE_INT8: + return id3_render_int(ptr, field->number.value, 1); + + case ID3_FIELD_TYPE_LATIN1: + case ID3_FIELD_TYPE_LATIN1FULL: + return id3_render_latin1(ptr, field->latin1.ptr, terminate); + + case ID3_FIELD_TYPE_LATIN1LIST: + size = 0; + for (i = 0; i < field->latin1list.nstrings; ++i) { + size += id3_render_latin1(ptr, field->latin1list.strings[i], + (i < field->latin1list.nstrings - 1) || + terminate); + } + return size; + + case ID3_FIELD_TYPE_STRING: + case ID3_FIELD_TYPE_STRINGFULL: + return id3_render_string(ptr, field->string.ptr, *encoding, terminate); + + case ID3_FIELD_TYPE_STRINGLIST: + size = 0; + for (i = 0; i < field->stringlist.nstrings; ++i) { + size += id3_render_string(ptr, field->stringlist.strings[i], *encoding, + (i < field->stringlist.nstrings - 1) || + terminate); + } + return size; + + case ID3_FIELD_TYPE_LANGUAGE: + return id3_render_immediate(ptr, field->immediate.value, 3); + + case ID3_FIELD_TYPE_FRAMEID: + return id3_render_immediate(ptr, field->immediate.value, 4); + + case ID3_FIELD_TYPE_DATE: + return id3_render_immediate(ptr, field->immediate.value, 8); + + case ID3_FIELD_TYPE_INT32PLUS: + case ID3_FIELD_TYPE_BINARYDATA: + return id3_render_binary(ptr, field->binary.data, field->binary.length); + } + + return 0; +} + +/* + * NAME: field->setint() + * DESCRIPTION: set the value of an int field + */ +int id3_field_setint(union id3_field *field, signed long number) +{ + assert(field); + + switch (field->type) { + case ID3_FIELD_TYPE_INT8: + if (number > 0x7f || number < -0x80) + return -1; + break; + + case ID3_FIELD_TYPE_INT16: + if (number > 0x7fff || number < -0x8000) + return -1; + break; + + case ID3_FIELD_TYPE_INT24: + if (number > 0x7fffffL || number < -0x800000L) + return -1; + break; + + case ID3_FIELD_TYPE_INT32: + if (number > 0x7fffffffL || number < -0x80000000L) + return -1; + break; + + default: + return -1; + } + + id3_field_finish(field); + + field->number.value = number; + + return 0; +} + +/* + * NAME: field->settextencoding() + * DESCRIPTION: set the value of a textencoding field + */ +int id3_field_settextencoding(union id3_field *field, + enum id3_field_textencoding encoding) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_TEXTENCODING) + return -1; + + id3_field_finish(field); + + field->number.value = encoding; + + return 0; +} + +static +int set_latin1(union id3_field *field, id3_latin1_t const *latin1) +{ + id3_latin1_t *data; + + if (latin1 == 0 || *latin1 == 0) + data = 0; + else { + data = id3_latin1_duplicate(latin1); + if (data == 0) + return -1; + } + + field->latin1.ptr = data; + + return 0; +} + +/* + * NAME: field->setlatin1() + * DESCRIPTION: set the value of a latin1 field + */ +int id3_field_setlatin1(union id3_field *field, id3_latin1_t const *latin1) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_LATIN1) + return -1; + + id3_field_finish(field); + + if (latin1) { + id3_latin1_t const *ptr; + + for (ptr = latin1; *ptr; ++ptr) { + if (*ptr == '\n') + return -1; + } + } + + return set_latin1(field, latin1); +} + +/* + * NAME: field->setfulllatin1() + * DESCRIPTION: set the value of a full latin1 field + */ +int id3_field_setfulllatin1(union id3_field *field, id3_latin1_t const *latin1) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_LATIN1FULL) + return -1; + + id3_field_finish(field); + + return set_latin1(field, latin1); +} + +static +int set_string(union id3_field *field, id3_ucs4_t const *string) +{ + id3_ucs4_t *data; + + if (string == 0 || *string == 0) + data = 0; + else { + data = id3_ucs4_duplicate(string); + if (data == 0) + return -1; + } + + field->string.ptr = data; + + return 0; +} + +/* + * NAME: field->setstring() + * DESCRIPTION: set the value of a string field + */ +int id3_field_setstring(union id3_field *field, id3_ucs4_t const *string) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRING) + return -1; + + id3_field_finish(field); + + if (string) { + id3_ucs4_t const *ptr; + + for (ptr = string; *ptr; ++ptr) { + if (*ptr == '\n') + return -1; + } + } + + return set_string(field, string); +} + +/* + * NAME: field->setfullstring() + * DESCRIPTION: set the value of a full string field + */ +int id3_field_setfullstring(union id3_field *field, id3_ucs4_t const *string) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRINGFULL) + return -1; + + id3_field_finish(field); + + return set_string(field, string); +} + +/* + * NAME: field->setstrings() + * DESCRIPTION: set the value of a stringlist field + */ +int id3_field_setstrings(union id3_field *field, + unsigned int length, id3_ucs4_t **ptrs) +{ + id3_ucs4_t **strings; + unsigned int i; + + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRINGLIST) + return -1; + + id3_field_finish(field); + + if (length == 0) + return 0; + + strings = malloc(length * sizeof(*strings)); + if (strings == 0) + return -1; + + for (i = 0; i < length; ++i) { + strings[i] = id3_ucs4_duplicate(ptrs[i]); + if (strings[i] == 0) { + while (i--) + free(strings[i]); + + free(strings); + return -1; + } + } + + field->stringlist.strings = strings; + field->stringlist.nstrings = length; + + return 0; +} + +/* + * NAME: field->addstring() + * DESCRIPTION: add a string to a stringlist field + */ +int id3_field_addstring(union id3_field *field, id3_ucs4_t const *string) +{ + id3_ucs4_t *new, **strings; + + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRINGLIST) + return -1; + + if (string == 0) + string = id3_ucs4_empty; + + new = id3_ucs4_duplicate(string); + if (new == 0) + return -1; + + strings = realloc(field->stringlist.strings, + (field->stringlist.nstrings + 1) * sizeof(*strings)); + if (strings == 0) { + free(new); + return -1; + } + + field->stringlist.strings = strings; + field->stringlist.strings[field->stringlist.nstrings++] = new; + + return 0; +} + +/* + * NAME: field->setlanguage() + * DESCRIPTION: set the value of a language field + */ +int id3_field_setlanguage(union id3_field *field, char const *language) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_LANGUAGE) + return -1; + + id3_field_finish(field); + + if (language) { + if (strlen(language) != 3) + return -1; + + strcpy(field->immediate.value, language); + } + + return 0; +} + +/* + * NAME: field->setframeid() + * DESCRIPTION: set the value of a frameid field + */ +int id3_field_setframeid(union id3_field *field, char const *id) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_FRAMEID || + !id3_frame_validid(id)) + return -1; + + id3_field_finish(field); + + field->immediate.value[0] = id[0]; + field->immediate.value[1] = id[1]; + field->immediate.value[2] = id[2]; + field->immediate.value[3] = id[3]; + field->immediate.value[4] = 0; + + return 0; +} + +/* + * NAME: field->setbinarydata() + * DESCRIPTION: set the value of a binarydata field + */ +int id3_field_setbinarydata(union id3_field *field, + id3_byte_t const *data, id3_length_t length) +{ + id3_byte_t *mem; + + assert(field); + + if (field->type != ID3_FIELD_TYPE_BINARYDATA) + return -1; + + id3_field_finish(field); + + if (length == 0) + mem = 0; + else { + mem = malloc(length); + if (mem == 0) + return -1; + + assert(data); + + memcpy(mem, data, length); + } + + field->binary.data = mem; + field->binary.length = length; + + return 0; +} + +/* + * NAME: field->getint() + * DESCRIPTION: return the value of an integer field + */ +signed long id3_field_getint(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_INT8 && + field->type != ID3_FIELD_TYPE_INT16 && + field->type != ID3_FIELD_TYPE_INT24 && + field->type != ID3_FIELD_TYPE_INT32) + return -1; + + return field->number.value; +} + +/* + * NAME: field->getlatin1() + * DESCRIPTION: return the value of a latin1 field + */ +id3_latin1_t const *id3_field_getlatin1(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_LATIN1) + return 0; + + return field->latin1.ptr ? field->latin1.ptr : (id3_latin1_t const *) ""; +} + +/* + * NAME: field->getfulllatin1() + * DESCRIPTION: return the value of a full latin1 field + */ +id3_latin1_t const *id3_field_getfulllatin1(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_LATIN1FULL) + return 0; + + return field->latin1.ptr ? field->latin1.ptr : (id3_latin1_t const *) ""; +} + +/* + * NAME: field->getstring() + * DESCRIPTION: return the value of a string field + */ +id3_ucs4_t const *id3_field_getstring(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRING) + return 0; + + return field->string.ptr ? field->string.ptr : id3_ucs4_empty; +} + +/* + * NAME: field->getfullstring() + * DESCRIPTION: return the value of a fullstring field + */ +id3_ucs4_t const *id3_field_getfullstring(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRINGFULL) + return 0; + + return field->string.ptr ? field->string.ptr : id3_ucs4_empty; +} + +/* + * NAME: field->getnstrings() + * DESCRIPTION: return the number of strings in a stringlist field + */ +unsigned int id3_field_getnstrings(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRINGLIST) + return 0; + + return field->stringlist.nstrings; +} + +/* + * NAME: field->getstrings() + * DESCRIPTION: return one value of a stringlist field + */ +id3_ucs4_t const *id3_field_getstrings(union id3_field const *field, + unsigned int index) +{ + id3_ucs4_t const *string; + + assert(field); + + if (field->type != ID3_FIELD_TYPE_STRINGLIST || + index >= field->stringlist.nstrings) + return 0; + + string = field->stringlist.strings[index]; + + return string ? string : id3_ucs4_empty; +} + +/* + * NAME: field->getframeid() + * DESCRIPTION: return the value of a frameid field + */ +char const *id3_field_getframeid(union id3_field const *field) +{ + assert(field); + + if (field->type != ID3_FIELD_TYPE_FRAMEID) + return 0; + + return field->immediate.value; +} + +/* + * NAME: field->getbinarydata() + * DESCRIPTION: return the value of a binarydata field + */ +id3_byte_t const *id3_field_getbinarydata(union id3_field const *field, + id3_length_t *length) +{ + static id3_byte_t const empty; + + assert(field && length); + + if (field->type != ID3_FIELD_TYPE_BINARYDATA) + return 0; + + assert(field->binary.length == 0 || field->binary.data); + + *length = field->binary.length; + + return field->binary.data ? field->binary.data : ∅ +} diff --git a/src/libid3tag/field.h b/src/libid3tag/field.h new file mode 100644 index 000000000..a3da578f7 --- /dev/null +++ b/src/libid3tag/field.h @@ -0,0 +1,36 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: field.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_FIELD_H +# define LIBID3TAG_FIELD_H + +# include "id3tag.h" + +void id3_field_init(union id3_field *, enum id3_field_type); +void id3_field_finish(union id3_field *); + +int id3_field_parse(union id3_field *, id3_byte_t const **, + id3_length_t, enum id3_field_textencoding *); + +id3_length_t id3_field_render(union id3_field const *, id3_byte_t **, + enum id3_field_textencoding *, int); + +# endif diff --git a/src/libid3tag/file.c b/src/libid3tag/file.c new file mode 100644 index 000000000..02150c06b --- /dev/null +++ b/src/libid3tag/file.c @@ -0,0 +1,673 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: file.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdio.h> +# include <stdlib.h> +# include <string.h> + +# ifdef HAVE_UNISTD_H +# include <unistd.h> +# endif + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include "id3tag.h" +# include "file.h" +# include "tag.h" +# include "field.h" + +struct filetag { + struct id3_tag *tag; + unsigned long location; + id3_length_t length; +}; + +struct id3_file { + FILE *iofile; + enum id3_file_mode mode; + char *path; + + int flags; + + struct id3_tag *primary; + + unsigned int ntags; + struct filetag *tags; +}; + +enum { + ID3_FILE_FLAG_ID3V1 = 0x0001 +}; + +/* + * NAME: query_tag() + * DESCRIPTION: check for a tag at a file's current position + */ +static +signed long query_tag(FILE *iofile) +{ + fpos_t save_position; + id3_byte_t query[ID3_TAG_QUERYSIZE]; + signed long size; + + if (fgetpos(iofile, &save_position) == -1) + return 0; + + size = id3_tag_query(query, fread(query, 1, sizeof(query), iofile)); + + if (fsetpos(iofile, &save_position) == -1) + return 0; + + return size; +} + +/* + * NAME: read_tag() + * DESCRIPTION: read and parse a tag at a file's current position + */ +static +struct id3_tag *read_tag(FILE *iofile, id3_length_t size) +{ + id3_byte_t *data; + struct id3_tag *tag = 0; + + data = malloc(size); + if (data) { + if (fread(data, size, 1, iofile) == 1) + tag = id3_tag_parse(data, size); + + free(data); + } + + return tag; +} + +/* + * NAME: update_primary() + * DESCRIPTION: update the primary tag with data from a new tag + */ +static +int update_primary(struct id3_tag *tag, struct id3_tag const *new) +{ + unsigned int i; + struct id3_frame *frame; + + if (new) { + if (!(new->extendedflags & ID3_TAG_EXTENDEDFLAG_TAGISANUPDATE)) + id3_tag_clearframes(tag); + + i = 0; + while ((frame = id3_tag_findframe(new, 0, i++))) { + if (id3_tag_attachframe(tag, frame) == -1) + return -1; + } + } + + return 0; +} + +/* + * NAME: tag_compare() + * DESCRIPTION: tag sort function for qsort() + */ +static +int tag_compare(const void *a, const void *b) +{ + struct filetag const *tag1 = a, *tag2 = b; + + if (tag1->location < tag2->location) + return -1; + else if (tag1->location > tag2->location) + return +1; + + return 0; +} + +/* + * NAME: add_filetag() + * DESCRIPTION: add a new file tag entry + */ +static +int add_filetag(struct id3_file *file, struct filetag const *filetag) +{ + struct filetag *tags; + + tags = realloc(file->tags, (file->ntags + 1) * sizeof(*tags)); + if (tags == 0) + return -1; + + file->tags = tags; + file->tags[file->ntags++] = *filetag; + + /* sort tags by location */ + + if (file->ntags > 1) + qsort(file->tags, file->ntags, sizeof(file->tags[0]), tag_compare); + + return 0; +} + +/* + * NAME: del_filetag() + * DESCRIPTION: delete a file tag entry + */ +static +void del_filetag(struct id3_file *file, unsigned int index) +{ + assert(index < file->ntags); + + while (index < file->ntags - 1) { + file->tags[index] = file->tags[index + 1]; + ++index; + } + + --file->ntags; +} + +/* + * NAME: add_tag() + * DESCRIPTION: read, parse, and add a tag to a file structure + */ +static +struct id3_tag *add_tag(struct id3_file *file, id3_length_t length) +{ + long location; + unsigned int i; + struct filetag filetag; + struct id3_tag *tag; + + location = ftell(file->iofile); + if (location == -1) + return 0; + + /* check for duplication/overlap */ + { + unsigned long begin1, end1, begin2, end2; + + begin1 = location; + end1 = begin1 + length; + + for (i = 0; i < file->ntags; ++i) { + begin2 = file->tags[i].location; + end2 = begin2 + file->tags[i].length; + + if (begin1 == begin2 && end1 == end2) + return file->tags[i].tag; /* duplicate */ + + if (begin1 < end2 && end1 > begin2) + return 0; /* overlap */ + } + } + + tag = read_tag(file->iofile, length); + + filetag.tag = tag; + filetag.location = location; + filetag.length = length; + + if (add_filetag(file, &filetag) == -1 || + update_primary(file->primary, tag) == -1) { + if (tag) + id3_tag_delete(tag); + return 0; + } + + if (tag) + id3_tag_addref(tag); + + return tag; +} + +/* + * NAME: search_tags() + * DESCRIPTION: search for tags in a file + */ +static +int search_tags(struct id3_file *file) +{ + fpos_t save_position; + signed long size; + + /* + * save the current seek position + * + * We also verify the stream is seekable by calling fsetpos(), since + * fgetpos() alone is not reliable enough for this purpose. + * + * [Apparently not even fsetpos() is sufficient under Win32.] + */ + + if (fgetpos(file->iofile, &save_position) == -1 || + fsetpos(file->iofile, &save_position) == -1) + return -1; + + /* look for an ID3v1 tag */ + + if (fseek(file->iofile, -128, SEEK_END) == 0) { + size = query_tag(file->iofile); + if (size > 0) { + struct id3_tag const *tag; + + tag = add_tag(file, size); + + /* if this is indeed an ID3v1 tag, mark the file so */ + + if (tag && (ID3_TAG_VERSION_MAJOR(id3_tag_version(tag)) == 1)) + file->flags |= ID3_FILE_FLAG_ID3V1; + } + } + + /* look for a tag at the beginning of the file */ + + rewind(file->iofile); + + size = query_tag(file->iofile); + if (size > 0) { + struct id3_tag const *tag; + struct id3_frame const *frame; + + tag = add_tag(file, size); + + /* locate tags indicated by SEEK frames */ + + while (tag && (frame = id3_tag_findframe(tag, "SEEK", 0))) { + long seek; + + seek = id3_field_getint(id3_frame_field(frame, 0)); + if (seek < 0 || fseek(file->iofile, seek, SEEK_CUR) == -1) + break; + + size = query_tag(file->iofile); + tag = (size > 0) ? add_tag(file, size) : 0; + } + } + + /* look for a tag at the end of the file (before any ID3v1 tag) */ + + if (fseek(file->iofile, ((file->flags & ID3_FILE_FLAG_ID3V1) ? -128 : 0) + + -10, SEEK_END) == 0) { + size = query_tag(file->iofile); + if (size < 0 && fseek(file->iofile, size, SEEK_CUR) == 0) { + size = query_tag(file->iofile); + if (size > 0) + add_tag(file, size); + } + } + + clearerr(file->iofile); + + /* restore seek position */ + + if (fsetpos(file->iofile, &save_position) == -1) + return -1; + + /* set primary tag options and target padded length for convenience */ + + if ((file->ntags > 0 && !(file->flags & ID3_FILE_FLAG_ID3V1)) || + (file->ntags > 1 && (file->flags & ID3_FILE_FLAG_ID3V1))) { + if (file->tags[0].location == 0) + id3_tag_setlength(file->primary, file->tags[0].length); + else + id3_tag_options(file->primary, ID3_TAG_OPTION_APPENDEDTAG, ~0); + } + + return 0; +} + +/* + * NAME: finish_file() + * DESCRIPTION: release memory associated with a file + */ +static +void finish_file(struct id3_file *file) +{ + unsigned int i; + + if (file->path) + free(file->path); + + if (file->primary) { + id3_tag_delref(file->primary); + id3_tag_delete(file->primary); + } + + for (i = 0; i < file->ntags; ++i) { + struct id3_tag *tag; + + tag = file->tags[i].tag; + if (tag) { + id3_tag_delref(tag); + id3_tag_delete(tag); + } + } + + if (file->tags) + free(file->tags); + + free(file); +} + +/* + * NAME: new_file() + * DESCRIPTION: create a new file structure and load tags + */ +static +struct id3_file *new_file(FILE *iofile, enum id3_file_mode mode, + char const *path) +{ + struct id3_file *file; + + file = malloc(sizeof(*file)); + if (file == 0) + goto fail; + + file->iofile = iofile; + file->mode = mode; + file->path = path ? strdup(path) : 0; + + file->flags = 0; + + file->ntags = 0; + file->tags = 0; + + file->primary = id3_tag_new(); + if (file->primary == 0) + goto fail; + + id3_tag_addref(file->primary); + + /* load tags from the file */ + + if (search_tags(file) == -1) + goto fail; + + id3_tag_options(file->primary, ID3_TAG_OPTION_ID3V1, + (file->flags & ID3_FILE_FLAG_ID3V1) ? ~0 : 0); + + if (0) { + fail: + if (file) { + finish_file(file); + file = 0; + } + } + + return file; +} + +/* + * NAME: file->open() + * DESCRIPTION: open a file given its pathname + */ +struct id3_file *id3_file_open(char const *path, enum id3_file_mode mode) +{ + FILE *iofile; + struct id3_file *file; + + assert(path); + + iofile = fopen(path, (mode == ID3_FILE_MODE_READWRITE) ? "r+b" : "rb"); + if (iofile == 0) + return 0; + + file = new_file(iofile, mode, path); + if (file == 0) + fclose(iofile); + + return file; +} + +/* + * NAME: file->fdopen() + * DESCRIPTION: open a file using an existing file descriptor + */ +struct id3_file *id3_file_fdopen(int fd, enum id3_file_mode mode) +{ +# if 1 || defined(HAVE_UNISTD_H) + FILE *iofile; + struct id3_file *file; + + iofile = fdopen(fd, (mode == ID3_FILE_MODE_READWRITE) ? "r+b" : "rb"); + if (iofile == 0) + return 0; + + file = new_file(iofile, mode, 0); + if (file == 0) { + int save_fd; + + /* close iofile without closing fd */ + + save_fd = dup(fd); + + fclose(iofile); + + dup2(save_fd, fd); + close(save_fd); + } + + return file; +# else + return 0; +# endif +} + +/* + * NAME: file->close() + * DESCRIPTION: close a file and delete its associated tags + */ +int id3_file_close(struct id3_file *file) +{ + int result = 0; + + assert(file); + + if (fclose(file->iofile) == EOF) + result = -1; + + finish_file(file); + + return result; +} + +/* + * NAME: file->tag() + * DESCRIPTION: return the primary tag structure for a file + */ +struct id3_tag *id3_file_tag(struct id3_file const *file) +{ + assert(file); + + return file->primary; +} + +/* + * NAME: v1_write() + * DESCRIPTION: write ID3v1 tag modifications to a file + */ +static +int v1_write(struct id3_file *file, + id3_byte_t const *data, id3_length_t length) +{ + assert(!data || length == 128); + + if (data) { + long location; + + if (fseek(file->iofile, (file->flags & ID3_FILE_FLAG_ID3V1) ? -128 : 0, + SEEK_END) == -1 || + (location = ftell(file->iofile)) == -1 || + fwrite(data, 128, 1, file->iofile) == 0 || + fflush(file->iofile) == EOF) + return -1; + + /* add file tag reference */ + + if (!(file->flags & ID3_FILE_FLAG_ID3V1)) { + struct filetag filetag; + + filetag.tag = 0; + filetag.location = location; + filetag.length = 128; + + if (add_filetag(file, &filetag) == -1) + return -1; + + file->flags |= ID3_FILE_FLAG_ID3V1; + } + } +# if defined(HAVE_FTRUNCATE) + else if (file->flags & ID3_FILE_FLAG_ID3V1) { + long length; + + if (fseek(file->iofile, 0, SEEK_END) == -1) + return -1; + + length = ftell(file->iofile); + if (length == -1 || + (length >= 0 && length < 128)) + return -1; + + if (ftruncate(fileno(file->iofile), length - 128) == -1) + return -1; + + /* delete file tag reference */ + + del_filetag(file, file->ntags - 1); + + file->flags &= ~ID3_FILE_FLAG_ID3V1; + } +# endif + + return 0; +} + +/* + * NAME: v2_write() + * DESCRIPTION: write ID3v2 tag modifications to a file + */ +static +int v2_write(struct id3_file *file, + id3_byte_t const *data, id3_length_t length) +{ + assert(!data || length > 0); + + if (((file->ntags == 1 && !(file->flags & ID3_FILE_FLAG_ID3V1)) || + (file->ntags == 2 && (file->flags & ID3_FILE_FLAG_ID3V1))) && + file->tags[0].length == length) { + /* easy special case: rewrite existing tag in-place */ + + if (fseek(file->iofile, file->tags[0].location, SEEK_SET) == -1 || + fwrite(data, length, 1, file->iofile) == 0 || + fflush(file->iofile) == EOF) + return -1; + + goto done; + } + + /* hard general case: rewrite entire file */ + + /* ... */ + + done: + return 0; +} + +/* + * NAME: file->update() + * DESCRIPTION: rewrite tag(s) to a file + */ +int id3_file_update(struct id3_file *file) +{ + int options, result = 0; + id3_length_t v1size = 0, v2size = 0; + id3_byte_t id3v1_data[128], *id3v1 = 0, *id3v2 = 0; + + assert(file); + + if (file->mode != ID3_FILE_MODE_READWRITE) + return -1; + + options = id3_tag_options(file->primary, 0, 0); + + /* render ID3v1 */ + + if (options & ID3_TAG_OPTION_ID3V1) { + v1size = id3_tag_render(file->primary, 0); + if (v1size) { + assert(v1size == sizeof(id3v1_data)); + + v1size = id3_tag_render(file->primary, id3v1_data); + if (v1size) { + assert(v1size == sizeof(id3v1_data)); + id3v1 = id3v1_data; + } + } + } + + /* render ID3v2 */ + + id3_tag_options(file->primary, ID3_TAG_OPTION_ID3V1, 0); + + v2size = id3_tag_render(file->primary, 0); + if (v2size) { + id3v2 = malloc(v2size); + if (id3v2 == 0) + goto fail; + + v2size = id3_tag_render(file->primary, id3v2); + if (v2size == 0) { + free(id3v2); + id3v2 = 0; + } + } + + /* write tags */ + + if (v2_write(file, id3v2, v2size) == -1 || + v1_write(file, id3v1, v1size) == -1) + goto fail; + + rewind(file->iofile); + + /* update file tags array? ... */ + + if (0) { + fail: + result = -1; + } + + /* clean up; restore tag options */ + + if (id3v2) + free(id3v2); + + id3_tag_options(file->primary, ~0, options); + + return result; +} diff --git a/src/libid3tag/file.h b/src/libid3tag/file.h new file mode 100644 index 000000000..da67af241 --- /dev/null +++ b/src/libid3tag/file.h @@ -0,0 +1,25 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: file.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_FILE_H +# define LIBID3TAG_FILE_H + +# endif diff --git a/src/libid3tag/frame.c b/src/libid3tag/frame.c new file mode 100644 index 000000000..aafd54e27 --- /dev/null +++ b/src/libid3tag/frame.c @@ -0,0 +1,626 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: frame.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> +# include <string.h> + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include "id3tag.h" +# include "frame.h" +# include "frametype.h" +# include "compat.h" +# include "field.h" +# include "render.h" +# include "parse.h" +# include "util.h" + +static +int valid_idchar(char c) +{ + return (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9'); +} + +/* + * NAME: frame->validid() + * DESCRIPTION: return true if the parameter string is a legal frame ID + */ +int id3_frame_validid(char const *id) +{ + return id && + valid_idchar(id[0]) && + valid_idchar(id[1]) && + valid_idchar(id[2]) && + valid_idchar(id[3]); +} + +/* + * NAME: frame->new() + * DESCRIPTION: allocate and return a new frame + */ +struct id3_frame *id3_frame_new(char const *id) +{ + struct id3_frametype const *frametype; + struct id3_frame *frame; + unsigned int i; + + if (!id3_frame_validid(id)) + return 0; + + frametype = id3_frametype_lookup(id, 4); + if (frametype == 0) { + switch (id[0]) { + case 'T': + frametype = &id3_frametype_text; + break; + + case 'W': + frametype = &id3_frametype_url; + break; + + case 'X': + case 'Y': + case 'Z': + frametype = &id3_frametype_experimental; + break; + + default: + frametype = &id3_frametype_unknown; + if (id3_compat_lookup(id, 4)) + frametype = &id3_frametype_obsolete; + break; + } + } + + frame = malloc(sizeof(*frame) + frametype->nfields * sizeof(*frame->fields)); + if (frame) { + frame->id[0] = id[0]; + frame->id[1] = id[1]; + frame->id[2] = id[2]; + frame->id[3] = id[3]; + frame->id[4] = 0; + + frame->description = frametype->description; + frame->refcount = 0; + frame->flags = frametype->defaultflags; + frame->group_id = 0; + frame->encryption_method = 0; + frame->encoded = 0; + frame->encoded_length = 0; + frame->decoded_length = 0; + frame->nfields = frametype->nfields; + frame->fields = (union id3_field *) &frame[1]; + + for (i = 0; i < frame->nfields; ++i) + id3_field_init(&frame->fields[i], frametype->fields[i]); + } + + return frame; +} + +void id3_frame_delete(struct id3_frame *frame) +{ + assert(frame); + + if (frame->refcount == 0) { + unsigned int i; + + for (i = 0; i < frame->nfields; ++i) + id3_field_finish(&frame->fields[i]); + + if (frame->encoded) + free(frame->encoded); + + free(frame); + } +} + +/* + * NAME: frame->addref() + * DESCRIPTION: add an external reference to a frame + */ +void id3_frame_addref(struct id3_frame *frame) +{ + assert(frame); + + ++frame->refcount; +} + +/* + * NAME: frame->delref() + * DESCRIPTION: remove an external reference to a frame + */ +void id3_frame_delref(struct id3_frame *frame) +{ + assert(frame && frame->refcount > 0); + + --frame->refcount; +} + +/* + * NAME: frame->field() + * DESCRIPTION: return a pointer to a field in a frame + */ +union id3_field *id3_frame_field(struct id3_frame const *frame, + unsigned int index) +{ + assert(frame); + + return (index < frame->nfields) ? &frame->fields[index] : 0; +} + +static +struct id3_frame *obsolete(char const *id, id3_byte_t const *data, + id3_length_t length) +{ + struct id3_frame *frame; + + frame = id3_frame_new(ID3_FRAME_OBSOLETE); + if (frame) { + if (id3_field_setframeid(&frame->fields[0], id) == -1 || + id3_field_setbinarydata(&frame->fields[1], data, length) == -1) + goto fail; + } + + if (0) { + fail: + if (frame) { + id3_frame_delete(frame); + frame = 0; + } + } + + return frame; +} + +static +struct id3_frame *unparseable(char const *id, id3_byte_t const **ptr, + id3_length_t length, int flags, + int group_id, int encryption_method, + id3_length_t decoded_length) +{ + struct id3_frame *frame = 0; + id3_byte_t *mem; + + mem = malloc(length ? length : 1); + if (mem == 0) + goto fail; + + frame = id3_frame_new(id); + if (frame == 0) + free(mem); + else { + memcpy(mem, *ptr, length); + + frame->flags = flags; + frame->group_id = group_id; + frame->encryption_method = encryption_method; + frame->encoded = mem; + frame->encoded_length = length; + frame->decoded_length = decoded_length; + } + + if (0) { + fail: + ; + } + + *ptr += length; + + return frame; +} + +static +int parse_data(struct id3_frame *frame, + id3_byte_t const *data, id3_length_t length) +{ + enum id3_field_textencoding encoding; + id3_byte_t const *end; + unsigned int i; + + encoding = ID3_FIELD_TEXTENCODING_ISO_8859_1; + + end = data + length; + + for (i = 0; i < frame->nfields; ++i) { + if (id3_field_parse(&frame->fields[i], &data, end - data, &encoding) == -1) + return -1; + } + + return 0; +} + +/* + * NAME: frame->parse() + * DESCRIPTION: parse raw frame data according to the specified ID3 tag version + */ +struct id3_frame *id3_frame_parse(id3_byte_t const **ptr, id3_length_t length, + unsigned int version) +{ + struct id3_frame *frame = 0; + id3_byte_t const *id, *end, *data; + id3_length_t size, decoded_length = 0; + int flags = 0, group_id = 0, encryption_method = 0; + struct id3_compat const *compat = 0; + id3_byte_t *mem = 0; + char xid[4]; + + id = *ptr; + end = *ptr + length; + + if (ID3_TAG_VERSION_MAJOR(version) < 4) { + switch (ID3_TAG_VERSION_MAJOR(version)) { + case 2: + if (length < 6) + goto fail; + + compat = id3_compat_lookup(id, 3); + + *ptr += 3; + size = id3_parse_uint(ptr, 3); + + if (size > end - *ptr) + goto fail; + + end = *ptr + size; + + break; + + case 3: + if (length < 10) + goto fail; + + compat = id3_compat_lookup(id, 4); + + *ptr += 4; + size = id3_parse_uint(ptr, 4); + flags = id3_parse_uint(ptr, 2); + + if (size > end - *ptr) + goto fail; + + end = *ptr + size; + + if (flags & (ID3_FRAME_FLAG_FORMATFLAGS & ~0x00e0)) { + frame = unparseable(id, ptr, end - *ptr, 0, 0, 0, 0); + goto done; + } + + flags = + ((flags >> 1) & ID3_FRAME_FLAG_STATUSFLAGS) | + ((flags >> 4) & (ID3_FRAME_FLAG_COMPRESSION | + ID3_FRAME_FLAG_ENCRYPTION)) | + ((flags << 1) & ID3_FRAME_FLAG_GROUPINGIDENTITY); + + if (flags & ID3_FRAME_FLAG_COMPRESSION) { + if (end - *ptr < 4) + goto fail; + + decoded_length = id3_parse_uint(ptr, 4); + } + + if (flags & ID3_FRAME_FLAG_ENCRYPTION) { + if (end - *ptr < 1) + goto fail; + + encryption_method = id3_parse_uint(ptr, 1); + } + + if (flags & ID3_FRAME_FLAG_GROUPINGIDENTITY) { + if (end - *ptr < 1) + goto fail; + + group_id = id3_parse_uint(ptr, 1); + } + + break; + + default: + goto fail; + } + + /* canonicalize frame ID for ID3v2.4 */ + + if (compat && compat->equiv) + id = compat->equiv; + else if (ID3_TAG_VERSION_MAJOR(version) == 2) { + xid[0] = 'Y'; + xid[1] = id[0]; + xid[2] = id[1]; + xid[3] = id[2]; + + id = xid; + + flags |= + ID3_FRAME_FLAG_TAGALTERPRESERVATION | + ID3_FRAME_FLAG_FILEALTERPRESERVATION; + } + } + else { /* ID3v2.4 */ + if (length < 10) + goto fail; + + *ptr += 4; + size = id3_parse_syncsafe(ptr, 4); + flags = id3_parse_uint(ptr, 2); + + if (size > end - *ptr) + goto fail; + + end = *ptr + size; + + if (flags & (ID3_FRAME_FLAG_FORMATFLAGS & ~ID3_FRAME_FLAG_KNOWNFLAGS)) { + frame = unparseable(id, ptr, end - *ptr, flags, 0, 0, 0); + goto done; + } + + if (flags & ID3_FRAME_FLAG_GROUPINGIDENTITY) { + if (end - *ptr < 1) + goto fail; + + group_id = id3_parse_uint(ptr, 1); + } + + if ((flags & ID3_FRAME_FLAG_COMPRESSION) && + !(flags & ID3_FRAME_FLAG_DATALENGTHINDICATOR)) + goto fail; + + if (flags & ID3_FRAME_FLAG_ENCRYPTION) { + if (end - *ptr < 1) + goto fail; + + encryption_method = id3_parse_uint(ptr, 1); + } + + if (flags & ID3_FRAME_FLAG_DATALENGTHINDICATOR) { + if (end - *ptr < 4) + goto fail; + + decoded_length = id3_parse_syncsafe(ptr, 4); + } + } + + data = *ptr; + *ptr = end; + + /* undo frame encodings */ + + if ((flags & ID3_FRAME_FLAG_UNSYNCHRONISATION) && end - data > 0) { + mem = malloc(end - data); + if (mem == 0) + goto fail; + + memcpy(mem, data, end - data); + + end = mem + id3_util_deunsynchronise(mem, end - data); + data = mem; + } + + if (flags & ID3_FRAME_FLAG_ENCRYPTION) { + frame = unparseable(id, &data, end - data, flags, + group_id, encryption_method, decoded_length); + goto done; + } + + if (flags & ID3_FRAME_FLAG_COMPRESSION) { + id3_byte_t *decomp; + + decomp = id3_util_decompress(data, end - data, decoded_length); + if (decomp == 0) + goto fail; + + if (mem) + free(mem); + + data = mem = decomp; + end = data + decoded_length; + } + + /* check for obsolescence */ + + if (compat && !compat->equiv) { + frame = obsolete(id, data, end - data); + goto done; + } + + /* generate the internal frame structure */ + + frame = id3_frame_new(id); + if (frame) { + frame->flags = flags; + frame->group_id = group_id; + + if (compat && compat->translate) { + if (compat->translate(frame, compat->id, data, end - data) == -1) + goto fail; + } + else { + if (parse_data(frame, data, end - data) == -1) + goto fail; + } + } + + if (0) { + fail: + if (frame) { + id3_frame_delete(frame); + frame = 0; + } + } + + done: + if (mem) + free(mem); + + return frame; +} + +static +id3_length_t render_data(id3_byte_t **ptr, + union id3_field *fields, unsigned int length) +{ + id3_length_t size = 0; + enum id3_field_textencoding encoding; + unsigned int i; + + encoding = ID3_FIELD_TEXTENCODING_ISO_8859_1; + + for (i = 0; i < length; ++i) + size += id3_field_render(&fields[i], ptr, &encoding, i < length - 1); + + return size; +} + +/* + * NAME: frame->render() + * DESCRIPTION: render a single, complete frame + */ +id3_length_t id3_frame_render(struct id3_frame const *frame, + id3_byte_t **ptr, int options) +{ + id3_length_t size = 0, decoded_length, datalen; + id3_byte_t *size_ptr = 0, *flags_ptr = 0, *data = 0; + int flags; + + assert(frame); + + if ((frame->flags & ID3_FRAME_FLAG_TAGALTERPRESERVATION) || + ((options & ID3_TAG_OPTION_FILEALTERED) && + (frame->flags & ID3_FRAME_FLAG_FILEALTERPRESERVATION))) + return 0; + + /* a frame must be at least 1 byte big, excluding the header */ + + decoded_length = render_data(0, frame->fields, frame->nfields); + if (decoded_length == 0 && frame->encoded == 0) + return 0; + + /* header */ + + size += id3_render_immediate(ptr, frame->id, 4); + + if (ptr) + size_ptr = *ptr; + + size += id3_render_syncsafe(ptr, 0, 4); + + if (ptr) + flags_ptr = *ptr; + + flags = frame->flags; + + size += id3_render_int(ptr, flags, 2); + + if (flags & (ID3_FRAME_FLAG_FORMATFLAGS & ~ID3_FRAME_FLAG_KNOWNFLAGS)) { + size += id3_render_binary(ptr, frame->encoded, frame->encoded_length); + if (size_ptr) + id3_render_syncsafe(&size_ptr, size - 10, 4); + + return size; + } + + flags &= ID3_FRAME_FLAG_KNOWNFLAGS; + + flags &= ~ID3_FRAME_FLAG_UNSYNCHRONISATION; + if (options & ID3_TAG_OPTION_UNSYNCHRONISATION) + flags |= ID3_FRAME_FLAG_UNSYNCHRONISATION; + + if (!(flags & ID3_FRAME_FLAG_ENCRYPTION)) { + flags &= ~ID3_FRAME_FLAG_COMPRESSION; + if (options & ID3_TAG_OPTION_COMPRESSION) + flags |= ID3_FRAME_FLAG_COMPRESSION | ID3_FRAME_FLAG_DATALENGTHINDICATOR; + } + + if (flags & ID3_FRAME_FLAG_GROUPINGIDENTITY) + size += id3_render_int(ptr, frame->group_id, 1); + if (flags & ID3_FRAME_FLAG_ENCRYPTION) + size += id3_render_int(ptr, frame->encryption_method, 1); + if (flags & ID3_FRAME_FLAG_DATALENGTHINDICATOR) { + if (flags & ID3_FRAME_FLAG_ENCRYPTION) + decoded_length = frame->decoded_length; + size += id3_render_syncsafe(ptr, decoded_length, 4); + } + + if (ptr) + data = *ptr; + + if (flags & ID3_FRAME_FLAG_ENCRYPTION) + datalen = id3_render_binary(ptr, frame->encoded, frame->encoded_length); + else { + if (ptr == 0) + datalen = decoded_length; + else { + datalen = render_data(ptr, frame->fields, frame->nfields); + + if (flags & ID3_FRAME_FLAG_COMPRESSION) { + id3_byte_t *comp; + id3_length_t complen; + + comp = id3_util_compress(data, datalen, &complen); + if (comp == 0) + flags &= ~ID3_FRAME_FLAG_COMPRESSION; + else { + *ptr = data; + datalen = id3_render_binary(ptr, comp, complen); + + free(comp); + } + } + } + } + + /* unsynchronisation */ + + if (flags & ID3_FRAME_FLAG_UNSYNCHRONISATION) { + if (data == 0) + datalen *= 2; + else { + id3_length_t newlen; + + newlen = id3_util_unsynchronise(data, datalen); + if (newlen == datalen) + flags &= ~ID3_FRAME_FLAG_UNSYNCHRONISATION; + else { + *ptr += newlen - datalen; + datalen = newlen; + } + } + } + + size += datalen; + + /* patch size and flags */ + + if (size_ptr) + id3_render_syncsafe(&size_ptr, size - 10, 4); + if (flags_ptr) + id3_render_int(&flags_ptr, flags, 2); + + return size; +} diff --git a/src/libid3tag/frame.h b/src/libid3tag/frame.h new file mode 100644 index 000000000..dfa9bb927 --- /dev/null +++ b/src/libid3tag/frame.h @@ -0,0 +1,36 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: frame.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_FRAME_H +# define LIBID3TAG_FRAME_H + +# include "id3tag.h" + +int id3_frame_validid(char const *); + +void id3_frame_addref(struct id3_frame *); +void id3_frame_delref(struct id3_frame *); + +struct id3_frame *id3_frame_parse(id3_byte_t const **, id3_length_t, + unsigned int); +id3_length_t id3_frame_render(struct id3_frame const *, id3_byte_t **, int); + +# endif diff --git a/src/libid3tag/frametype.gperf b/src/libid3tag/frametype.gperf new file mode 100644 index 000000000..5158f77b9 --- /dev/null +++ b/src/libid3tag/frametype.gperf @@ -0,0 +1,363 @@ +%{ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: frametype.gperf,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <string.h> + +# include "id3tag.h" +# include "frametype.h" + +# define FIELDS(id) static enum id3_field_type const fields_##id[] + +/* frame field descriptions */ + +FIELDS(UFID) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(TXXX) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_STRING +}; + +FIELDS(WXXX) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_LATIN1 +}; + +FIELDS(MCDI) = { + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(ETCO) = { + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(MLLT) = { + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_INT24, + ID3_FIELD_TYPE_INT24, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(SYTC) = { + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(USLT) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LANGUAGE, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_STRINGFULL +}; + +FIELDS(SYLT) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LANGUAGE, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(COMM) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LANGUAGE, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_STRINGFULL +}; + +FIELDS(RVA2) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(EQU2) = { + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(RVRB) = { + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT8 +}; + +FIELDS(APIC) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(GEOB) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(PCNT) = { + ID3_FIELD_TYPE_INT32PLUS +}; + +FIELDS(POPM) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT32PLUS +}; + +FIELDS(RBUF) = { + ID3_FIELD_TYPE_INT24, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT32 +}; + +FIELDS(AENC) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(LINK) = { + ID3_FIELD_TYPE_FRAMEID, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_LATIN1LIST +}; + +FIELDS(POSS) = { + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(USER) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LANGUAGE, + ID3_FIELD_TYPE_STRING +}; + +FIELDS(OWNE) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_DATE, + ID3_FIELD_TYPE_STRING +}; + +FIELDS(COMR) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_DATE, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(ENCR) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(GRID) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(PRIV) = { + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(SIGN) = { + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(SEEK) = { + ID3_FIELD_TYPE_INT32 +}; + +FIELDS(ASPI) = { + ID3_FIELD_TYPE_INT32, + ID3_FIELD_TYPE_INT32, + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(text) = { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_STRINGLIST +}; + +FIELDS(url) = { + ID3_FIELD_TYPE_LATIN1 +}; + +FIELDS(unknown) = { + ID3_FIELD_TYPE_BINARYDATA +}; + +FIELDS(ZOBS) = { + ID3_FIELD_TYPE_FRAMEID, + ID3_FIELD_TYPE_BINARYDATA +}; + +# define FRAME(id) \ + sizeof(fields_##id) / sizeof(fields_##id[0]), fields_##id + +# define PRESERVE 0 +# define DISCARD ID3_FRAME_FLAG_FILEALTERPRESERVATION +# define OBSOLETE (DISCARD | ID3_FRAME_FLAG_TAGALTERPRESERVATION) + +# define FRAMETYPE(type, id, flags, desc) \ + struct id3_frametype const id3_frametype_##type = { \ + 0, FRAME(id), flags, desc \ + } + +/* static frame types */ + +FRAMETYPE(text, text, PRESERVE, "Unknown text information frame"); +FRAMETYPE(url, url, PRESERVE, "Unknown URL link frame"); +FRAMETYPE(experimental, unknown, PRESERVE, "Experimental frame"); +FRAMETYPE(unknown, unknown, PRESERVE, "Unknown frame"); +FRAMETYPE(obsolete, unknown, OBSOLETE, "Obsolete frame"); +%} +struct id3_frametype; +%% +# +# ID3v2.4 frames +# +AENC, FRAME(AENC), DISCARD, "Audio encryption" +APIC, FRAME(APIC), PRESERVE, "Attached picture" +ASPI, FRAME(ASPI), DISCARD, "Audio seek point index" +COMM, FRAME(COMM), PRESERVE, "Comments" +COMR, FRAME(COMR), PRESERVE, "Commercial frame" +ENCR, FRAME(ENCR), PRESERVE, "Encryption method registration" +EQU2, FRAME(EQU2), DISCARD, "Equalisation (2)" +ETCO, FRAME(ETCO), DISCARD, "Event timing codes" +GEOB, FRAME(GEOB), PRESERVE, "General encapsulated object" +GRID, FRAME(GRID), PRESERVE, "Group identification registration" +LINK, FRAME(LINK), PRESERVE, "Linked information" +MCDI, FRAME(MCDI), PRESERVE, "Music CD identifier" +MLLT, FRAME(MLLT), DISCARD, "MPEG location lookup table" +OWNE, FRAME(OWNE), PRESERVE, "Ownership frame" +PCNT, FRAME(PCNT), PRESERVE, "Play counter" +POPM, FRAME(POPM), PRESERVE, "Popularimeter" +POSS, FRAME(POSS), DISCARD, "Position synchronisation frame" +PRIV, FRAME(PRIV), PRESERVE, "Private frame" +RBUF, FRAME(RBUF), PRESERVE, "Recommended buffer size" +RVA2, FRAME(RVA2), DISCARD, "Relative volume adjustment (2)" +RVRB, FRAME(RVRB), PRESERVE, "Reverb" +SEEK, FRAME(SEEK), DISCARD, "Seek frame" +SIGN, FRAME(SIGN), PRESERVE, "Signature frame" +SYLT, FRAME(SYLT), DISCARD, "Synchronised lyric/text" +SYTC, FRAME(SYTC), DISCARD, "Synchronised tempo codes" +TALB, FRAME(text), PRESERVE, "Album/movie/show title" +TBPM, FRAME(text), PRESERVE, "BPM (beats per minute)" +TCOM, FRAME(text), PRESERVE, "Composer" +TCON, FRAME(text), PRESERVE, "Content type" +TCOP, FRAME(text), PRESERVE, "Copyright message" +TDEN, FRAME(text), PRESERVE, "Encoding time" +TDLY, FRAME(text), PRESERVE, "Playlist delay" +TDOR, FRAME(text), PRESERVE, "Original release time" +TDRC, FRAME(text), PRESERVE, "Recording time" +TDRL, FRAME(text), PRESERVE, "Release time" +TDTG, FRAME(text), PRESERVE, "Tagging time" +TENC, FRAME(text), DISCARD, "Encoded by" +TEXT, FRAME(text), PRESERVE, "Lyricist/text writer" +TFLT, FRAME(text), PRESERVE, "File type" +TIPL, FRAME(text), PRESERVE, "Involved people list" +TIT1, FRAME(text), PRESERVE, "Content group description" +TIT2, FRAME(text), PRESERVE, "Title/songname/content description" +TIT3, FRAME(text), PRESERVE, "Subtitle/description refinement" +TKEY, FRAME(text), PRESERVE, "Initial key" +TLAN, FRAME(text), PRESERVE, "Language(s)" +TLEN, FRAME(text), DISCARD, "Length" +TMCL, FRAME(text), PRESERVE, "Musician credits list" +TMED, FRAME(text), PRESERVE, "Media type" +TMOO, FRAME(text), PRESERVE, "Mood" +TOAL, FRAME(text), PRESERVE, "Original album/movie/show title" +TOFN, FRAME(text), PRESERVE, "Original filename" +TOLY, FRAME(text), PRESERVE, "Original lyricist(s)/text writer(s)" +TOPE, FRAME(text), PRESERVE, "Original artist(s)/performer(s)" +TOWN, FRAME(text), PRESERVE, "File owner/licensee" +TPE1, FRAME(text), PRESERVE, "Lead performer(s)/soloist(s)" +TPE2, FRAME(text), PRESERVE, "Band/orchestra/accompaniment" +TPE3, FRAME(text), PRESERVE, "Conductor/performer refinement" +TPE4, FRAME(text), PRESERVE, "Interpreted, remixed, or otherwise modified by" +TPOS, FRAME(text), PRESERVE, "Part of a set" +TPRO, FRAME(text), PRESERVE, "Produced notice" +TPUB, FRAME(text), PRESERVE, "Publisher" +TRCK, FRAME(text), PRESERVE, "Track number/position in set" +TRSN, FRAME(text), PRESERVE, "Internet radio station name" +TRSO, FRAME(text), PRESERVE, "Internet radio station owner" +TSOA, FRAME(text), PRESERVE, "Album sort order" +TSOP, FRAME(text), PRESERVE, "Performer sort order" +TSOT, FRAME(text), PRESERVE, "Title sort order" +TSRC, FRAME(text), PRESERVE, "ISRC (international standard recording code)" +TSSE, FRAME(text), PRESERVE, "Software/hardware and settings used for encoding" +TSST, FRAME(text), PRESERVE, "Set subtitle" +TXXX, FRAME(TXXX), PRESERVE, "User defined text information frame" +UFID, FRAME(UFID), PRESERVE, "Unique file identifier" +USER, FRAME(USER), PRESERVE, "Terms of use" +USLT, FRAME(USLT), PRESERVE, "Unsynchronised lyric/text transcription" +WCOM, FRAME(url), PRESERVE, "Commercial information" +WCOP, FRAME(url), PRESERVE, "Copyright/legal information" +WOAF, FRAME(url), PRESERVE, "Official audio file webpage" +WOAR, FRAME(url), PRESERVE, "Official artist/performer webpage" +WOAS, FRAME(url), PRESERVE, "Official audio source webpage" +WORS, FRAME(url), PRESERVE, "Official Internet radio station homepage" +WPAY, FRAME(url), PRESERVE, "Payment" +WPUB, FRAME(url), PRESERVE, "Publishers official webpage" +WXXX, FRAME(WXXX), PRESERVE, "User defined URL link frame" +# +# Special frames +# +ZOBS, FRAME(ZOBS), OBSOLETE, "Obsolete frame" diff --git a/src/libid3tag/frametype.h b/src/libid3tag/frametype.h new file mode 100644 index 000000000..9ace41468 --- /dev/null +++ b/src/libid3tag/frametype.h @@ -0,0 +1,42 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: frametype.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_FRAMETYPE_H +# define LIBID3TAG_FRAMETYPE_H + +struct id3_frametype { + char const *id; + unsigned int nfields; + enum id3_field_type const *fields; + int defaultflags; + char const *description; +}; + +extern struct id3_frametype const id3_frametype_text; +extern struct id3_frametype const id3_frametype_url; +extern struct id3_frametype const id3_frametype_experimental; +extern struct id3_frametype const id3_frametype_unknown; +extern struct id3_frametype const id3_frametype_obsolete; + +struct id3_frametype const *id3_frametype_lookup(register char const *, + register unsigned int); + +# endif diff --git a/src/libid3tag/genre.c b/src/libid3tag/genre.c new file mode 100644 index 000000000..dda381a03 --- /dev/null +++ b/src/libid3tag/genre.c @@ -0,0 +1,151 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: genre.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include "id3tag.h" +# include "ucs4.h" + +/* genres are stored in ucs4 format */ +# include "genre.dat" + +# define NGENRES (sizeof(genre_table) / sizeof(genre_table[0])) + +/* + * NAME: genre->index() + * DESCRIPTION: return an ID3v1 genre string indexed by number + */ +id3_ucs4_t const *id3_genre_index(unsigned int index) +{ + return (index < NGENRES) ? genre_table[index] : 0; +} + +/* + * NAME: genre->name() + * DESCRIPTION: translate an ID3v2 genre number/keyword to its full name + */ +id3_ucs4_t const *id3_genre_name(id3_ucs4_t const *string) +{ + id3_ucs4_t const *ptr; + static id3_ucs4_t const genre_remix[] = { 'R', 'e', 'm', 'i', 'x', 0 }; + static id3_ucs4_t const genre_cover[] = { 'C', 'o', 'v', 'e', 'r', 0 }; + unsigned long number; + + if (string == 0 || *string == 0) + return id3_ucs4_empty; + + if (string[0] == 'R' && string[1] == 'X' && string[2] == 0) + return genre_remix; + if (string[0] == 'C' && string[1] == 'R' && string[2] == 0) + return genre_cover; + + for (ptr = string; *ptr; ++ptr) { + if (*ptr < '0' || *ptr > '9') + return string; + } + + number = id3_ucs4_getnumber(string); + + return (number < NGENRES) ? genre_table[number] : string; +} + +/* + * NAME: translate() + * DESCRIPTION: return a canonicalized character for testing genre equivalence + */ +static +id3_ucs4_t translate(id3_ucs4_t ch) +{ + if (ch) { + if (ch >= 'A' && ch <= 'Z') + ch += 'a' - 'A'; + + if (ch < 'a' || ch > 'z') + ch = ID3_UCS4_REPLACEMENTCHAR; + } + + return ch; +} + +/* + * NAME: compare() + * DESCRIPTION: test two ucs4 genre strings for equivalence + */ +static +int compare(id3_ucs4_t const *str1, id3_ucs4_t const *str2) +{ + id3_ucs4_t c1, c2; + + if (str1 == str2) + return 1; + + do { + do + c1 = translate(*str1++); + while (c1 == ID3_UCS4_REPLACEMENTCHAR); + + do + c2 = translate(*str2++); + while (c2 == ID3_UCS4_REPLACEMENTCHAR); + } + while (c1 && c1 == c2); + + return c1 == c2; +} + +/* + * NAME: genre->number() + * DESCRIPTION: translate an ID3v2 genre name/number to its ID3v1 index number + */ +int id3_genre_number(id3_ucs4_t const *string) +{ + id3_ucs4_t const *ptr; + int i; + + if (string == 0 || *string == 0) + return -1; + + for (ptr = string; *ptr; ++ptr) { + if (*ptr < '0' || *ptr > '9') + break; + } + + if (*ptr == 0) { + unsigned long number; + + number = id3_ucs4_getnumber(string); + + return (number <= 0xff) ? number : -1; + } + + for (i = 0; i < NGENRES; ++i) { + if (compare(string, genre_table[i])) + return i; + } + + /* no equivalent */ + + return -1; +} diff --git a/src/libid3tag/genre.dat.in b/src/libid3tag/genre.dat.in new file mode 100644 index 000000000..9a7ad9c4e --- /dev/null +++ b/src/libid3tag/genre.dat.in @@ -0,0 +1,180 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: genre.dat.in,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +/* + * These are the ID3 genre names, taken as a combination of names from ID3v1 + * (listed in Appendix A of the ID3 tag version 2.4.0 informal standard) and + * the extensions made by Winamp as of version 2.80. + */ + +/* ID3v1 names (0-79) */ + +Blues +Classic Rock +Country +Dance +Disco +Funk +Grunge +Hip-Hop +Jazz +Metal +New Age +Oldies +Other +Pop +R&B +Rap +Reggae +Rock +Techno +Industrial +Alternative +Ska +Death Metal +Pranks +Soundtrack +Euro-Techno +Ambient +Trip-Hop +Vocal +Jazz+Funk +Fusion +Trance +Classical +Instrumental +Acid +House +Game +Sound Clip +Gospel +Noise +AlternRock +Bass +Soul +Punk +Space +Meditative +Instrumental Pop +Instrumental Rock +Ethnic +Gothic +Darkwave +Techno-Industrial +Electronic +Pop-Folk +Eurodance +Dream +Southern Rock +Comedy +Cult +Gangsta +Top 40 +Christian Rap +Pop/Funk +Jungle +Native American +Cabaret +New Wave +Psychedelic +Rave +Showtunes +Trailer +Lo-Fi +Tribal +Acid Punk +Acid Jazz +Polka +Retro +Musical +Rock & Roll +Hard Rock + +/* Winamp extensions (80-147) */ + +Folk +Folk/Rock +National Folk +Swing +Fast-Fusion +Bebob +Latin +Revival +Celtic +Bluegrass +Avantgarde +Gothic Rock +Progressive Rock +Psychedelic Rock +Symphonic Rock +Slow Rock +Big Band +Chorus +Easy Listening +Acoustic +Humour +Speech +Chanson +Opera +Chamber Music +Sonata +Symphony +Booty Bass +Primus +Porn Groove +Satire +Slow Jam +Club +Tango +Samba +Folklore +Ballad +Power Ballad +Rhythmic Soul +Freestyle +Duet +Punk Rock +Drum Solo +A Cappella +Euro-House +Dance Hall +Goa +Drum & Bass +Club-House +Hardcore +Terror +Indie +BritPop +Negerpunk +Polsk Punk +Beat +Christian Gangsta Rap +Heavy Metal +Black Metal +Crossover +Contemporary Christian +Christian Rock +Merengue +Salsa +Thrash Metal +Anime +JPop +Synthpop diff --git a/src/libid3tag/genre.dat.sed b/src/libid3tag/genre.dat.sed new file mode 100644 index 000000000..c65740334 --- /dev/null +++ b/src/libid3tag/genre.dat.sed @@ -0,0 +1,54 @@ +# +# libid3tag - ID3 tag manipulation library +# Copyright (C) 2000-2003 Underbit Technologies, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# $Id: genre.dat.sed,v 1.1 2003/08/14 03:57:13 shank Exp $ +# + +1i\ +/* Automatically generated from genre.dat.in */ + +# generate an array from a string +/^[A-Za-z]/{ +H +y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/ +s/[^A-Z0-9]/_/g +s/.*/static id3_ucs4_t const genre_&[] =/p +g +s/.*\n// +s/./'&', /g +s/.*/ { &0 };/ +} + +# write the final table of arrays +${ +p +i\ +\ +static id3_ucs4_t const *const genre_table[] = { +g +s/^\(\n\)\(.*\)$/\2\1/ +y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/ +s/[^A-Z0-9\n]/_/g +s/\([^\n]*\)\(\n\)/ genre_\1,\2/g +s/,\n$// +a\ +}; +} + +# print the pattern space (assumes -n) +p diff --git a/src/libid3tag/genre.h b/src/libid3tag/genre.h new file mode 100644 index 000000000..bd4b906e7 --- /dev/null +++ b/src/libid3tag/genre.h @@ -0,0 +1,27 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: genre.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_GENRE_H +# define LIBID3TAG_GENRE_H + +# define ID3_GENRE_OTHER 12 + +# endif diff --git a/src/libid3tag/global.h b/src/libid3tag/global.h new file mode 100644 index 000000000..86924b112 --- /dev/null +++ b/src/libid3tag/global.h @@ -0,0 +1,53 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: global.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_GLOBAL_H +# define LIBID3TAG_GLOBAL_H + +/* conditional debugging */ + +# if defined(DEBUG) && defined(NDEBUG) +# error "cannot define both DEBUG and NDEBUG" +# endif + +# if defined(DEBUG) +# include <stdio.h> +# include "debug.h" +# define malloc(sz) id3_debug_malloc(sz, __FILE__, __LINE__) +# define calloc(n, sz) id3_debug_calloc(n, sz, __FILE__, __LINE__) +# define realloc(ptr, sz) id3_debug_realloc(ptr, sz, __FILE__, __LINE__) +# define free(ptr) id3_debug_free(ptr, __FILE__, __LINE__) +# define release(ptr) id3_debug_release(ptr, __FILE__, __LINE__) +# else +# define release(ptr) (ptr) +# endif + +/* conditional features */ + +# if !defined(HAVE_ASSERT_H) +# if defined(NDEBUG) +# define assert(x) /* nothing */ +# else +# define assert(x) do { if (!(x)) abort(); } while (0) +# endif +# endif + +# endif diff --git a/src/libid3tag/id3tag.h b/src/libid3tag/id3tag.h new file mode 100644 index 000000000..a862eaeb1 --- /dev/null +++ b/src/libid3tag/id3tag.h @@ -0,0 +1,363 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * If you would like to negotiate alternate licensing terms, you may do + * so by contacting: Underbit Technologies, Inc. <info@underbit.com> + * + * $Id: id3tag.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_ID3TAG_H +# define LIBID3TAG_ID3TAG_H + +# ifdef __cplusplus +extern "C" { +# endif + +# define ID3_TAG_VERSION 0x0400 +# define ID3_TAG_VERSION_MAJOR(x) (((x) >> 8) & 0xff) +# define ID3_TAG_VERSION_MINOR(x) (((x) >> 0) & 0xff) + +typedef unsigned char id3_byte_t; +typedef unsigned long id3_length_t; + +typedef unsigned long id3_ucs4_t; + +typedef unsigned char id3_latin1_t; +typedef unsigned short id3_utf16_t; +typedef signed char id3_utf8_t; + +struct id3_tag { + unsigned int refcount; + unsigned int version; + int flags; + int extendedflags; + int restrictions; + int options; + unsigned int nframes; + struct id3_frame **frames; + id3_length_t paddedsize; +}; + +# define ID3_TAG_QUERYSIZE 10 + +/* ID3v1 field frames */ + +# define ID3_FRAME_TITLE "TIT2" +# define ID3_FRAME_ARTIST "TPE1" +# define ID3_FRAME_ALBUM "TALB" +# define ID3_FRAME_TRACK "TRCK" +# define ID3_FRAME_YEAR "TDRC" +# define ID3_FRAME_GENRE "TCON" +# define ID3_FRAME_COMMENT "COMM" + +/* special frames */ + +# define ID3_FRAME_OBSOLETE "ZOBS" /* with apologies to the French */ + +/* tag flags */ + +enum { + ID3_TAG_FLAG_UNSYNCHRONISATION = 0x80, + ID3_TAG_FLAG_EXTENDEDHEADER = 0x40, + ID3_TAG_FLAG_EXPERIMENTALINDICATOR = 0x20, + ID3_TAG_FLAG_FOOTERPRESENT = 0x10, + + ID3_TAG_FLAG_KNOWNFLAGS = 0xf0 +}; + +/* tag extended flags */ + +enum { + ID3_TAG_EXTENDEDFLAG_TAGISANUPDATE = 0x40, + ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT = 0x20, + ID3_TAG_EXTENDEDFLAG_TAGRESTRICTIONS = 0x10, + + ID3_TAG_EXTENDEDFLAG_KNOWNFLAGS = 0x70 +}; + +/* tag restrictions */ + +enum { + ID3_TAG_RESTRICTION_TAGSIZE_MASK = 0xc0, + ID3_TAG_RESTRICTION_TAGSIZE_128_FRAMES_1_MB = 0x00, + ID3_TAG_RESTRICTION_TAGSIZE_64_FRAMES_128_KB = 0x40, + ID3_TAG_RESTRICTION_TAGSIZE_32_FRAMES_40_KB = 0x80, + ID3_TAG_RESTRICTION_TAGSIZE_32_FRAMES_4_KB = 0xc0 +}; + +enum { + ID3_TAG_RESTRICTION_TEXTENCODING_MASK = 0x20, + ID3_TAG_RESTRICTION_TEXTENCODING_NONE = 0x00, + ID3_TAG_RESTRICTION_TEXTENCODING_LATIN1_UTF8 = 0x20 +}; + +enum { + ID3_TAG_RESTRICTION_TEXTSIZE_MASK = 0x18, + ID3_TAG_RESTRICTION_TEXTSIZE_NONE = 0x00, + ID3_TAG_RESTRICTION_TEXTSIZE_1024_CHARS = 0x08, + ID3_TAG_RESTRICTION_TEXTSIZE_128_CHARS = 0x10, + ID3_TAG_RESTRICTION_TEXTSIZE_30_CHARS = 0x18 +}; + +enum { + ID3_TAG_RESTRICTION_IMAGEENCODING_MASK = 0x04, + ID3_TAG_RESTRICTION_IMAGEENCODING_NONE = 0x00, + ID3_TAG_RESTRICTION_IMAGEENCODING_PNG_JPEG = 0x04 +}; + +enum { + ID3_TAG_RESTRICTION_IMAGESIZE_MASK = 0x03, + ID3_TAG_RESTRICTION_IMAGESIZE_NONE = 0x00, + ID3_TAG_RESTRICTION_IMAGESIZE_256_256 = 0x01, + ID3_TAG_RESTRICTION_IMAGESIZE_64_64 = 0x02, + ID3_TAG_RESTRICTION_IMAGESIZE_64_64_EXACT = 0x03 +}; + +/* library options */ + +enum { + ID3_TAG_OPTION_UNSYNCHRONISATION = 0x0001, /* use unsynchronisation */ + ID3_TAG_OPTION_COMPRESSION = 0x0002, /* use compression */ + ID3_TAG_OPTION_CRC = 0x0004, /* use CRC */ + + ID3_TAG_OPTION_APPENDEDTAG = 0x0010, /* tag will be appended */ + ID3_TAG_OPTION_FILEALTERED = 0x0020, /* audio data was altered */ + + ID3_TAG_OPTION_ID3V1 = 0x0100 /* render ID3v1/ID3v1.1 tag */ +}; + +struct id3_frame { + char id[5]; + char const *description; + unsigned int refcount; + int flags; + int group_id; + int encryption_method; + id3_byte_t *encoded; + id3_length_t encoded_length; + id3_length_t decoded_length; + unsigned int nfields; + union id3_field *fields; +}; + +enum { + /* frame status flags */ + ID3_FRAME_FLAG_TAGALTERPRESERVATION = 0x4000, + ID3_FRAME_FLAG_FILEALTERPRESERVATION = 0x2000, + ID3_FRAME_FLAG_READONLY = 0x1000, + + ID3_FRAME_FLAG_STATUSFLAGS = 0xff00, + + /* frame format flags */ + ID3_FRAME_FLAG_GROUPINGIDENTITY = 0x0040, + ID3_FRAME_FLAG_COMPRESSION = 0x0008, + ID3_FRAME_FLAG_ENCRYPTION = 0x0004, + ID3_FRAME_FLAG_UNSYNCHRONISATION = 0x0002, + ID3_FRAME_FLAG_DATALENGTHINDICATOR = 0x0001, + + ID3_FRAME_FLAG_FORMATFLAGS = 0x00ff, + + ID3_FRAME_FLAG_KNOWNFLAGS = 0x704f +}; + +enum id3_field_type { + ID3_FIELD_TYPE_TEXTENCODING, + ID3_FIELD_TYPE_LATIN1, + ID3_FIELD_TYPE_LATIN1FULL, + ID3_FIELD_TYPE_LATIN1LIST, + ID3_FIELD_TYPE_STRING, + ID3_FIELD_TYPE_STRINGFULL, + ID3_FIELD_TYPE_STRINGLIST, + ID3_FIELD_TYPE_LANGUAGE, + ID3_FIELD_TYPE_FRAMEID, + ID3_FIELD_TYPE_DATE, + ID3_FIELD_TYPE_INT8, + ID3_FIELD_TYPE_INT16, + ID3_FIELD_TYPE_INT24, + ID3_FIELD_TYPE_INT32, + ID3_FIELD_TYPE_INT32PLUS, + ID3_FIELD_TYPE_BINARYDATA +}; + +enum id3_field_textencoding { + ID3_FIELD_TEXTENCODING_ISO_8859_1 = 0x00, + ID3_FIELD_TEXTENCODING_UTF_16 = 0x01, + ID3_FIELD_TEXTENCODING_UTF_16BE = 0x02, + ID3_FIELD_TEXTENCODING_UTF_8 = 0x03 +}; + +union id3_field { + enum id3_field_type type; + struct { + enum id3_field_type type; + signed long value; + } number; + struct { + enum id3_field_type type; + id3_latin1_t *ptr; + } latin1; + struct { + enum id3_field_type type; + unsigned int nstrings; + id3_latin1_t **strings; + } latin1list; + struct { + enum id3_field_type type; + id3_ucs4_t *ptr; + } string; + struct { + enum id3_field_type type; + unsigned int nstrings; + id3_ucs4_t **strings; + } stringlist; + struct { + enum id3_field_type type; + char value[9]; + } immediate; + struct { + enum id3_field_type type; + id3_byte_t *data; + id3_length_t length; + } binary; +}; + +/* file interface */ + +enum id3_file_mode { + ID3_FILE_MODE_READONLY = 0, + ID3_FILE_MODE_READWRITE +}; + +struct id3_file *id3_file_open(char const *, enum id3_file_mode); +struct id3_file *id3_file_fdopen(int, enum id3_file_mode); +int id3_file_close(struct id3_file *); + +struct id3_tag *id3_file_tag(struct id3_file const *); + +int id3_file_update(struct id3_file *); + +/* tag interface */ + +struct id3_tag *id3_tag_new(void); +void id3_tag_delete(struct id3_tag *); + +unsigned int id3_tag_version(struct id3_tag const *); + +int id3_tag_options(struct id3_tag *, int, int); +void id3_tag_setlength(struct id3_tag *, id3_length_t); + +void id3_tag_clearframes(struct id3_tag *); + +int id3_tag_attachframe(struct id3_tag *, struct id3_frame *); +int id3_tag_detachframe(struct id3_tag *, struct id3_frame *); + +struct id3_frame *id3_tag_findframe(struct id3_tag const *, + char const *, unsigned int); + +signed long id3_tag_query(id3_byte_t const *, id3_length_t); + +struct id3_tag *id3_tag_parse(id3_byte_t const *, id3_length_t); +id3_length_t id3_tag_render(struct id3_tag const *, id3_byte_t *); + +/* frame interface */ + +struct id3_frame *id3_frame_new(char const *); +void id3_frame_delete(struct id3_frame *); + +union id3_field *id3_frame_field(struct id3_frame const *, unsigned int); + +/* field interface */ + +enum id3_field_type id3_field_type(union id3_field const *); + +int id3_field_setint(union id3_field *, signed long); +int id3_field_settextencoding(union id3_field *, enum id3_field_textencoding); +int id3_field_setstrings(union id3_field *, unsigned int, id3_ucs4_t **); +int id3_field_addstring(union id3_field *, id3_ucs4_t const *); +int id3_field_setlanguage(union id3_field *, char const *); +int id3_field_setlatin1(union id3_field *, id3_latin1_t const *); +int id3_field_setfulllatin1(union id3_field *, id3_latin1_t const *); +int id3_field_setstring(union id3_field *, id3_ucs4_t const *); +int id3_field_setfullstring(union id3_field *, id3_ucs4_t const *); +int id3_field_setframeid(union id3_field *, char const *); +int id3_field_setbinarydata(union id3_field *, + id3_byte_t const *, id3_length_t); + +signed long id3_field_getint(union id3_field const *); +id3_latin1_t const *id3_field_getlatin1(union id3_field const *); +id3_latin1_t const *id3_field_getfulllatin1(union id3_field const *); +id3_ucs4_t const *id3_field_getstring(union id3_field const *); +id3_ucs4_t const *id3_field_getfullstring(union id3_field const *); +unsigned int id3_field_getnstrings(union id3_field const *); +id3_ucs4_t const *id3_field_getstrings(union id3_field const *, + unsigned int); +char const *id3_field_getframeid(union id3_field const *); +id3_byte_t const *id3_field_getbinarydata(union id3_field const *, + id3_length_t *); + +/* genre interface */ + +id3_ucs4_t const *id3_genre_index(unsigned int); +id3_ucs4_t const *id3_genre_name(id3_ucs4_t const *); +int id3_genre_number(id3_ucs4_t const *); + +/* ucs4 interface */ + +id3_latin1_t *id3_ucs4_latin1duplicate(id3_ucs4_t const *); +id3_utf16_t *id3_ucs4_utf16duplicate(id3_ucs4_t const *); +id3_utf8_t *id3_ucs4_utf8duplicate(id3_ucs4_t const *); + +void id3_ucs4_putnumber(id3_ucs4_t *, unsigned long); +unsigned long id3_ucs4_getnumber(id3_ucs4_t const *); + +/* latin1/utf16/utf8 interfaces */ + +id3_ucs4_t *id3_latin1_ucs4duplicate(id3_latin1_t const *); +id3_ucs4_t *id3_utf16_ucs4duplicate(id3_utf16_t const *); +id3_ucs4_t *id3_utf8_ucs4duplicate(id3_utf8_t const *); + +/* version interface */ + +# define ID3_VERSION_MAJOR 0 +# define ID3_VERSION_MINOR 15 +# define ID3_VERSION_PATCH 0 +# define ID3_VERSION_EXTRA " (beta)" + +# define ID3_VERSION_STRINGIZE(str) #str +# define ID3_VERSION_STRING(num) ID3_VERSION_STRINGIZE(num) + +# define ID3_VERSION ID3_VERSION_STRING(ID3_VERSION_MAJOR) "." \ + ID3_VERSION_STRING(ID3_VERSION_MINOR) "." \ + ID3_VERSION_STRING(ID3_VERSION_PATCH) \ + ID3_VERSION_EXTRA + +# define ID3_PUBLISHYEAR "2000-2003" +# define ID3_AUTHOR "Underbit Technologies, Inc." +# define ID3_EMAIL "info@underbit.com" + +extern char const id3_version[]; +extern char const id3_copyright[]; +extern char const id3_author[]; +extern char const id3_build[]; + +# ifdef __cplusplus +} +# endif + +# endif diff --git a/src/libid3tag/latin1.c b/src/libid3tag/latin1.c new file mode 100644 index 000000000..12ecb9ed7 --- /dev/null +++ b/src/libid3tag/latin1.c @@ -0,0 +1,217 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: latin1.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> + +# include "id3tag.h" +# include "latin1.h" +# include "ucs4.h" + +/* + * NAME: latin1->length() + * DESCRIPTION: return the number of ucs4 chars represented by a latin1 string + */ +id3_length_t id3_latin1_length(id3_latin1_t const *latin1) +{ + id3_latin1_t const *ptr = latin1; + + while (*ptr) + ++ptr; + + return ptr - latin1; +} + +/* + * NAME: latin1->size() + * DESCRIPTION: return the encoding size of a latin1 string + */ +id3_length_t id3_latin1_size(id3_latin1_t const *latin1) +{ + return id3_latin1_length(latin1) + 1; +} + +/* + * NAME: latin1->copy() + * DESCRIPTION: copy a latin1 string + */ +void id3_latin1_copy(id3_latin1_t *dest, id3_latin1_t const *src) +{ + while ((*dest++ = *src++)) + ; +} + +/* + * NAME: latin1->duplicate() + * DESCRIPTION: duplicate a latin1 string + */ +id3_latin1_t *id3_latin1_duplicate(id3_latin1_t const *src) +{ + id3_latin1_t *latin1; + + latin1 = malloc(id3_latin1_size(src) * sizeof(*latin1)); + if (latin1) + id3_latin1_copy(latin1, src); + + return latin1; +} + +/* + * NAME: latin1->ucs4duplicate() + * DESCRIPTION: duplicate and decode a latin1 string into ucs4 + */ +id3_ucs4_t *id3_latin1_ucs4duplicate(id3_latin1_t const *latin1) +{ + id3_ucs4_t *ucs4; + + ucs4 = malloc((id3_latin1_length(latin1) + 1) * sizeof(*ucs4)); + if (ucs4) + id3_latin1_decode(latin1, ucs4); + + return release(ucs4); +} + +/* + * NAME: latin1->decodechar() + * DESCRIPTION: decode a (single) latin1 char into a single ucs4 char + */ +id3_length_t id3_latin1_decodechar(id3_latin1_t const *latin1, + id3_ucs4_t *ucs4) +{ + *ucs4 = *latin1; + + return 1; +} + +/* + * NAME: latin1->encodechar() + * DESCRIPTION: encode a single ucs4 char into a (single) latin1 char + */ +id3_length_t id3_latin1_encodechar(id3_latin1_t *latin1, id3_ucs4_t ucs4) +{ + *latin1 = ucs4; + if (ucs4 > 0x000000ffL) + *latin1 = ID3_UCS4_REPLACEMENTCHAR; + + return 1; +} + +/* + * NAME: latin1->decode() + * DESCRIPTION: decode a complete latin1 string into a ucs4 string + */ +void id3_latin1_decode(id3_latin1_t const *latin1, id3_ucs4_t *ucs4) +{ + do + latin1 += id3_latin1_decodechar(latin1, ucs4); + while (*ucs4++); +} + +/* + * NAME: latin1->encode() + * DESCRIPTION: encode a complete ucs4 string into a latin1 string + */ +void id3_latin1_encode(id3_latin1_t *latin1, id3_ucs4_t const *ucs4) +{ + do + latin1 += id3_latin1_encodechar(latin1, *ucs4); + while (*ucs4++); +} + +/* + * NAME: latin1->put() + * DESCRIPTION: serialize a single latin1 character + */ +id3_length_t id3_latin1_put(id3_byte_t **ptr, id3_latin1_t latin1) +{ + if (ptr) + *(*ptr)++ = latin1; + + return 1; +} + +/* + * NAME: latin1->get() + * DESCRIPTION: deserialize a single latin1 character + */ +id3_latin1_t id3_latin1_get(id3_byte_t const **ptr) +{ + return *(*ptr)++; +} + +/* + * NAME: latin1->serialize() + * DESCRIPTION: serialize a ucs4 string using latin1 encoding + */ +id3_length_t id3_latin1_serialize(id3_byte_t **ptr, id3_ucs4_t const *ucs4, + int terminate) +{ + id3_length_t size = 0; + id3_latin1_t latin1[1], *out; + + while (*ucs4) { + switch (id3_latin1_encodechar(out = latin1, *ucs4++)) { + case 1: size += id3_latin1_put(ptr, *out++); + case 0: break; + } + } + + if (terminate) + size += id3_latin1_put(ptr, 0); + + return size; +} + +/* + * NAME: latin1->deserialize() + * DESCRIPTION: deserialize a ucs4 string using latin1 encoding + */ +id3_ucs4_t *id3_latin1_deserialize(id3_byte_t const **ptr, id3_length_t length) +{ + id3_byte_t const *end; + id3_latin1_t *latin1ptr, *latin1; + id3_ucs4_t *ucs4; + + end = *ptr + length; + + latin1 = malloc((length + 1) * sizeof(*latin1)); + if (latin1 == 0) + return 0; + + latin1ptr = latin1; + while (end - *ptr > 0 && (*latin1ptr = id3_latin1_get(ptr))) + ++latin1ptr; + + *latin1ptr = 0; + + ucs4 = malloc((id3_latin1_length(latin1) + 1) * sizeof(*ucs4)); + if (ucs4) + id3_latin1_decode(latin1, ucs4); + + free(latin1); + + return ucs4; +} diff --git a/src/libid3tag/latin1.h b/src/libid3tag/latin1.h new file mode 100644 index 000000000..287dd6722 --- /dev/null +++ b/src/libid3tag/latin1.h @@ -0,0 +1,45 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: latin1.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_LATIN1_H +# define LIBID3TAG_LATIN1_H + +# include "id3tag.h" + +id3_length_t id3_latin1_length(id3_latin1_t const *); +id3_length_t id3_latin1_size(id3_latin1_t const *); + +void id3_latin1_copy(id3_latin1_t *, id3_latin1_t const *); +id3_latin1_t *id3_latin1_duplicate(id3_latin1_t const *); + +id3_length_t id3_latin1_decodechar(id3_latin1_t const *, id3_ucs4_t *); +id3_length_t id3_latin1_encodechar(id3_latin1_t *, id3_ucs4_t); + +void id3_latin1_decode(id3_latin1_t const *, id3_ucs4_t *); +void id3_latin1_encode(id3_latin1_t *, id3_ucs4_t const *); + +id3_length_t id3_latin1_put(id3_byte_t **, id3_latin1_t); +id3_latin1_t id3_latin1_get(id3_byte_t const **); + +id3_length_t id3_latin1_serialize(id3_byte_t **, id3_ucs4_t const *, int); +id3_ucs4_t *id3_latin1_deserialize(id3_byte_t const **, id3_length_t); + +# endif diff --git a/src/libid3tag/libid3tag.list.in b/src/libid3tag/libid3tag.list.in new file mode 100644 index 000000000..65731c2d8 --- /dev/null +++ b/src/libid3tag/libid3tag.list.in @@ -0,0 +1,21 @@ +# @configure_input@ + +# Directories... +$prefix=@prefix@ +$exec_prefix=@exec_prefix@ +$srcdir=@srcdir@ + +# Product information +%product @PACKAGE@ +%copyright GPL +%vendor Underbit Technologies, Inc. <info@underbit.com> +%license @srcdir@/COPYING +%readme @srcdir@/README +%description libid3tag is an ID3 tag manipulation library. +%version @VERSION@ +%packager Giuseppe "Cowo" Corbelli <cowo@lugbs.linux.it> + +%system all +f 0755 root root @libdir@/libid3tag.la .libs/libid3tag.lai +f 0644 root root @libdir@/libid3tag.a .libs/libid3tag.a +f 0644 root root @includedir@/id3tag.h @srcdir@/id3tag.h diff --git a/src/libid3tag/parse.c b/src/libid3tag/parse.c new file mode 100644 index 000000000..f3ddad865 --- /dev/null +++ b/src/libid3tag/parse.c @@ -0,0 +1,196 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: parse.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include <stdlib.h> +# include <string.h> + +# include "id3tag.h" +# include "parse.h" +# include "latin1.h" +# include "utf16.h" +# include "utf8.h" + +signed long id3_parse_int(id3_byte_t const **ptr, unsigned int bytes) +{ + signed long value = 0; + + assert(bytes >= 1 && bytes <= 4); + + if (**ptr & 0x80) + value = ~0; + + switch (bytes) { + case 4: value = (value << 8) | *(*ptr)++; + case 3: value = (value << 8) | *(*ptr)++; + case 2: value = (value << 8) | *(*ptr)++; + case 1: value = (value << 8) | *(*ptr)++; + } + + return value; +} + +unsigned long id3_parse_uint(id3_byte_t const **ptr, unsigned int bytes) +{ + unsigned long value = 0; + + assert(bytes >= 1 && bytes <= 4); + + switch (bytes) { + case 4: value = (value << 8) | *(*ptr)++; + case 3: value = (value << 8) | *(*ptr)++; + case 2: value = (value << 8) | *(*ptr)++; + case 1: value = (value << 8) | *(*ptr)++; + } + + return value; +} + +unsigned long id3_parse_syncsafe(id3_byte_t const **ptr, unsigned int bytes) +{ + unsigned long value = 0; + + assert(bytes == 4 || bytes == 5); + + switch (bytes) { + case 5: value = (value << 4) | (*(*ptr)++ & 0x0f); + case 4: value = (value << 7) | (*(*ptr)++ & 0x7f); + value = (value << 7) | (*(*ptr)++ & 0x7f); + value = (value << 7) | (*(*ptr)++ & 0x7f); + value = (value << 7) | (*(*ptr)++ & 0x7f); + } + + return value; +} + +void id3_parse_immediate(id3_byte_t const **ptr, unsigned int bytes, + char *value) +{ + assert(value); + assert(bytes == 8 || bytes == 4 || bytes == 3); + + switch (bytes) { + case 8: *value++ = *(*ptr)++; + *value++ = *(*ptr)++; + *value++ = *(*ptr)++; + *value++ = *(*ptr)++; + case 4: *value++ = *(*ptr)++; + case 3: *value++ = *(*ptr)++; + *value++ = *(*ptr)++; + *value++ = *(*ptr)++; + } + + *value = 0; +} + +id3_latin1_t *id3_parse_latin1(id3_byte_t const **ptr, id3_length_t length, + int full) +{ + id3_byte_t const *end; + int terminated = 0; + id3_latin1_t *latin1; + + end = memchr(*ptr, 0, length); + if (end == 0) + end = *ptr + length; + else { + length = end - *ptr; + terminated = 1; + } + + latin1 = malloc(length + 1); + if (latin1) { + memcpy(latin1, *ptr, length); + latin1[length] = 0; + + if (!full) { + id3_latin1_t *check; + + for (check = latin1; *check; ++check) { + if (*check == '\n') + *check = ' '; + } + } + } + + *ptr += length + terminated; + + return latin1; +} + +id3_ucs4_t *id3_parse_string(id3_byte_t const **ptr, id3_length_t length, + enum id3_field_textencoding encoding, int full) +{ + id3_ucs4_t *ucs4 = 0; + enum id3_utf16_byteorder byteorder = ID3_UTF16_BYTEORDER_ANY; + + switch (encoding) { + case ID3_FIELD_TEXTENCODING_ISO_8859_1: + ucs4 = id3_latin1_deserialize(ptr, length); + break; + + case ID3_FIELD_TEXTENCODING_UTF_16BE: + byteorder = ID3_UTF16_BYTEORDER_BE; + case ID3_FIELD_TEXTENCODING_UTF_16: + ucs4 = id3_utf16_deserialize(ptr, length, byteorder); + break; + + case ID3_FIELD_TEXTENCODING_UTF_8: + ucs4 = id3_utf8_deserialize(ptr, length); + break; + } + + if (ucs4 && !full) { + id3_ucs4_t *check; + + for (check = ucs4; *check; ++check) { + if (*check == '\n') + *check = ' '; + } + } + + return ucs4; +} + +id3_byte_t *id3_parse_binary(id3_byte_t const **ptr, id3_length_t length) +{ + id3_byte_t *data; + + if (length == 0) + return malloc(1); + + data = malloc(length); + if (data) + memcpy(data, *ptr, length); + + *ptr += length; + + return data; +} diff --git a/src/libid3tag/parse.h b/src/libid3tag/parse.h new file mode 100644 index 000000000..20f79ad3d --- /dev/null +++ b/src/libid3tag/parse.h @@ -0,0 +1,34 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: parse.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_PARSE_H +# define LIBID3TAG_PARSE_H + +signed long id3_parse_int(id3_byte_t const **, unsigned int); +unsigned long id3_parse_uint(id3_byte_t const **, unsigned int); +unsigned long id3_parse_syncsafe(id3_byte_t const **, unsigned int); +void id3_parse_immediate(id3_byte_t const **, unsigned int, char *); +id3_latin1_t *id3_parse_latin1(id3_byte_t const **, id3_length_t, int); +id3_ucs4_t *id3_parse_string(id3_byte_t const **, id3_length_t, + enum id3_field_textencoding, int); +id3_byte_t *id3_parse_binary(id3_byte_t const **, id3_length_t); + +# endif diff --git a/src/libid3tag/render.c b/src/libid3tag/render.c new file mode 100644 index 000000000..29b8e8acc --- /dev/null +++ b/src/libid3tag/render.c @@ -0,0 +1,200 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: render.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <string.h> +# include <stdlib.h> + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include "id3tag.h" +# include "render.h" +# include "ucs4.h" +# include "latin1.h" +# include "utf16.h" +# include "utf8.h" + +id3_length_t id3_render_immediate(id3_byte_t **ptr, + char const *value, unsigned int bytes) +{ + assert(value); + assert(bytes == 8 || bytes == 4 || bytes == 3); + + if (ptr) { + switch (bytes) { + case 8: *(*ptr)++ = *value++; + *(*ptr)++ = *value++; + *(*ptr)++ = *value++; + *(*ptr)++ = *value++; + case 4: *(*ptr)++ = *value++; + case 3: *(*ptr)++ = *value++; + *(*ptr)++ = *value++; + *(*ptr)++ = *value++; + } + } + + return bytes; +} + +id3_length_t id3_render_syncsafe(id3_byte_t **ptr, + unsigned long num, unsigned int bytes) +{ + assert(bytes == 4 || bytes == 5); + + if (ptr) { + switch (bytes) { + case 5: *(*ptr)++ = (num >> 28) & 0x0f; + case 4: *(*ptr)++ = (num >> 21) & 0x7f; + *(*ptr)++ = (num >> 14) & 0x7f; + *(*ptr)++ = (num >> 7) & 0x7f; + *(*ptr)++ = (num >> 0) & 0x7f; + } + } + + return bytes; +} + +id3_length_t id3_render_int(id3_byte_t **ptr, + signed long num, unsigned int bytes) +{ + assert(bytes >= 1 && bytes <= 4); + + if (ptr) { + switch (bytes) { + case 4: *(*ptr)++ = num >> 24; + case 3: *(*ptr)++ = num >> 16; + case 2: *(*ptr)++ = num >> 8; + case 1: *(*ptr)++ = num >> 0; + } + } + + return bytes; +} + +id3_length_t id3_render_binary(id3_byte_t **ptr, + id3_byte_t const *data, id3_length_t length) +{ + if (data == 0) + return 0; + + if (ptr) { + memcpy(*ptr, data, length); + *ptr += length; + } + + return length; +} + +id3_length_t id3_render_latin1(id3_byte_t **ptr, + id3_latin1_t const *latin1, int terminate) +{ + id3_length_t size; + + if (latin1 == 0) + latin1 = ""; + + size = id3_latin1_size(latin1); + if (!terminate) + --size; + + if (ptr) { + memcpy(*ptr, latin1, size); + *ptr += size; + } + + return size; +} + +id3_length_t id3_render_string(id3_byte_t **ptr, id3_ucs4_t const *ucs4, + enum id3_field_textencoding encoding, + int terminate) +{ + enum id3_utf16_byteorder byteorder = ID3_UTF16_BYTEORDER_ANY; + + if (ucs4 == 0) + ucs4 = id3_ucs4_empty; + + switch (encoding) { + case ID3_FIELD_TEXTENCODING_ISO_8859_1: + return id3_latin1_serialize(ptr, ucs4, terminate); + + case ID3_FIELD_TEXTENCODING_UTF_16BE: + byteorder = ID3_UTF16_BYTEORDER_BE; + case ID3_FIELD_TEXTENCODING_UTF_16: + return id3_utf16_serialize(ptr, ucs4, byteorder, terminate); + + case ID3_FIELD_TEXTENCODING_UTF_8: + return id3_utf8_serialize(ptr, ucs4, terminate); + } + + return 0; +} + +id3_length_t id3_render_padding(id3_byte_t **ptr, id3_byte_t value, + id3_length_t length) +{ + if (ptr) { + memset(*ptr, value, length); + *ptr += length; + } + + return length; +} + +/* + * NAME: render->paddedstring() + * DESCRIPTION: render a space-padded string using latin1 encoding + */ +id3_length_t id3_render_paddedstring(id3_byte_t **ptr, id3_ucs4_t const *ucs4, + id3_length_t length) +{ + id3_ucs4_t padded[31], *data, *end; + + /* latin1 encoding only (this is used for ID3v1 fields) */ + + assert(length <= 30); + + data = padded; + end = data + length; + + if (ucs4) { + while (*ucs4 && end - data > 0) { + *data++ = *ucs4++; + + if (data[-1] == '\n') + data[-1] = ' '; + } + } + + while (end - data > 0) + *data++ = ' '; + + *data = 0; + + return id3_latin1_serialize(ptr, padded, 0); +} diff --git a/src/libid3tag/render.h b/src/libid3tag/render.h new file mode 100644 index 000000000..5fa8c17da --- /dev/null +++ b/src/libid3tag/render.h @@ -0,0 +1,40 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: render.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_RENDER_H +# define LIBID3TAG_RENDER_H + +# include "id3tag.h" + +id3_length_t id3_render_immediate(id3_byte_t **, char const *, unsigned int); +id3_length_t id3_render_syncsafe(id3_byte_t **, unsigned long, unsigned int); +id3_length_t id3_render_int(id3_byte_t **, signed long, unsigned int); +id3_length_t id3_render_binary(id3_byte_t **, + id3_byte_t const *, id3_length_t); +id3_length_t id3_render_latin1(id3_byte_t **, id3_latin1_t const *, int); +id3_length_t id3_render_string(id3_byte_t **, id3_ucs4_t const *, + enum id3_field_textencoding, int); +id3_length_t id3_render_padding(id3_byte_t **, id3_byte_t, id3_length_t); + +id3_length_t id3_render_paddedstring(id3_byte_t **, id3_ucs4_t const *, + id3_length_t); + +# endif diff --git a/src/libid3tag/tag.c b/src/libid3tag/tag.c new file mode 100644 index 000000000..4c9ad1929 --- /dev/null +++ b/src/libid3tag/tag.c @@ -0,0 +1,909 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: tag.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <string.h> +# include <stdlib.h> + +# ifdef HAVE_ASSERT_H +# include <assert.h> +# endif + +# include "id3tag.h" +# include "tag.h" +# include "frame.h" +# include "compat.h" +# include "parse.h" +# include "render.h" +# include "latin1.h" +# include "ucs4.h" +# include "genre.h" +# include "crc.h" +# include "field.h" +# include "util.h" + +/* + * NAME: tag->new() + * DESCRIPTION: allocate and return a new, empty tag + */ +struct id3_tag *id3_tag_new(void) +{ + struct id3_tag *tag; + + tag = malloc(sizeof(*tag)); + if (tag) { + tag->refcount = 0; + tag->version = ID3_TAG_VERSION; + tag->flags = 0; + tag->extendedflags = 0; + tag->restrictions = 0; + tag->options = /* ID3_TAG_OPTION_UNSYNCHRONISATION | */ + ID3_TAG_OPTION_COMPRESSION | ID3_TAG_OPTION_CRC; + tag->nframes = 0; + tag->frames = 0; + tag->paddedsize = 0; + } + + return tag; +} + +/* + * NAME: tag->delete() + * DESCRIPTION: destroy a tag and deallocate all associated memory + */ +void id3_tag_delete(struct id3_tag *tag) +{ + assert(tag); + + if (tag->refcount == 0) { + id3_tag_clearframes(tag); + + if (tag->frames) + free(tag->frames); + + free(tag); + } +} + +/* + * NAME: tag->addref() + * DESCRIPTION: add an external reference to a tag + */ +void id3_tag_addref(struct id3_tag *tag) +{ + assert(tag); + + ++tag->refcount; +} + +/* + * NAME: tag->delref() + * DESCRIPTION: remove an external reference to a tag + */ +void id3_tag_delref(struct id3_tag *tag) +{ + assert(tag && tag->refcount > 0); + + --tag->refcount; +} + +/* + * NAME: tag->version() + * DESCRIPTION: return the tag's original ID3 version number + */ +unsigned int id3_tag_version(struct id3_tag const *tag) +{ + assert(tag); + + return tag->version; +} + +/* + * NAME: tag->options() + * DESCRIPTION: get or set tag options + */ +int id3_tag_options(struct id3_tag *tag, int mask, int values) +{ + assert(tag); + + if (mask) + tag->options = (tag->options & ~mask) | (values & mask); + + return tag->options; +} + +/* + * NAME: tag->setlength() + * DESCRIPTION: set the minimum rendered tag size + */ +void id3_tag_setlength(struct id3_tag *tag, id3_length_t length) +{ + assert(tag); + + tag->paddedsize = length; +} + +/* + * NAME: tag->clearframes() + * DESCRIPTION: detach and delete all frames associated with a tag + */ +void id3_tag_clearframes(struct id3_tag *tag) +{ + unsigned int i; + + assert(tag); + + for (i = 0; i < tag->nframes; ++i) { + id3_frame_delref(tag->frames[i]); + id3_frame_delete(tag->frames[i]); + } + + tag->nframes = 0; +} + +/* + * NAME: tag->attachframe() + * DESCRIPTION: attach a frame to a tag + */ +int id3_tag_attachframe(struct id3_tag *tag, struct id3_frame *frame) +{ + struct id3_frame **frames; + + assert(tag && frame); + + frames = realloc(tag->frames, (tag->nframes + 1) * sizeof(*frames)); + if (frames == 0) + return -1; + + tag->frames = frames; + tag->frames[tag->nframes++] = frame; + + id3_frame_addref(frame); + + return 0; +} + +/* + * NAME: tag->detachframe() + * DESCRIPTION: detach (but don't delete) a frame from a tag + */ +int id3_tag_detachframe(struct id3_tag *tag, struct id3_frame *frame) +{ + unsigned int i; + + assert(tag && frame); + + for (i = 0; i < tag->nframes; ++i) { + if (tag->frames[i] == frame) + break; + } + + if (i == tag->nframes) + return -1; + + --tag->nframes; + while (i++ < tag->nframes) + tag->frames[i - 1] = tag->frames[i]; + + id3_frame_delref(frame); + + return 0; +} + +/* + * NAME: tag->findframe() + * DESCRIPTION: find in a tag the nth (0-based) frame with the given frame ID + */ +struct id3_frame *id3_tag_findframe(struct id3_tag const *tag, + char const *id, unsigned int index) +{ + unsigned int len, i; + + assert(tag); + + if (id == 0 || *id == 0) + return (index < tag->nframes) ? tag->frames[index] : 0; + + len = strlen(id); + + if (len == 4) { + struct id3_compat const *compat; + + compat = id3_compat_lookup(id, len); + if (compat && compat->equiv && !compat->translate) { + id = compat->equiv; + len = strlen(id); + } + } + + for (i = 0; i < tag->nframes; ++i) { + if (strncmp(tag->frames[i]->id, id, len) == 0 && index-- == 0) + return tag->frames[i]; + } + + return 0; +} + +enum tagtype { + TAGTYPE_NONE = 0, + TAGTYPE_ID3V1, + TAGTYPE_ID3V2, + TAGTYPE_ID3V2_FOOTER +}; + +static +enum tagtype tagtype(id3_byte_t const *data, id3_length_t length) +{ + if (length >= 3 && + data[0] == 'T' && data[1] == 'A' && data[2] == 'G') + return TAGTYPE_ID3V1; + + if (length >= 10 && + ((data[0] == 'I' && data[1] == 'D' && data[2] == '3') || + (data[0] == '3' && data[1] == 'D' && data[2] == 'I')) && + data[3] < 0xff && data[4] < 0xff && + data[6] < 0x80 && data[7] < 0x80 && data[8] < 0x80 && data[9] < 0x80) + return data[0] == 'I' ? TAGTYPE_ID3V2 : TAGTYPE_ID3V2_FOOTER; + + return TAGTYPE_NONE; +} + +static +void parse_header(id3_byte_t const **ptr, + unsigned int *version, int *flags, id3_length_t *size) +{ + *ptr += 3; + + *version = id3_parse_uint(ptr, 2); + *flags = id3_parse_uint(ptr, 1); + *size = id3_parse_syncsafe(ptr, 4); +} + +/* + * NAME: tag->query() + * DESCRIPTION: if a tag begins at the given location, return its size + */ +signed long id3_tag_query(id3_byte_t const *data, id3_length_t length) +{ + unsigned int version; + int flags; + id3_length_t size; + + assert(data); + + switch (tagtype(data, length)) { + case TAGTYPE_ID3V1: + return 128; + + case TAGTYPE_ID3V2: + parse_header(&data, &version, &flags, &size); + + if (flags & ID3_TAG_FLAG_FOOTERPRESENT) + size += 10; + + return 10 + size; + + case TAGTYPE_ID3V2_FOOTER: + parse_header(&data, &version, &flags, &size); + return -size - 10; + + case TAGTYPE_NONE: + break; + } + + return 0; +} + +static +void trim(char *str) +{ + char *ptr; + + ptr = str + strlen(str); + while (ptr > str && ptr[-1] == ' ') + --ptr; + + *ptr = 0; +} + +static +int v1_attachstr(struct id3_tag *tag, char const *id, + char *text, unsigned long number) +{ + struct id3_frame *frame; + id3_ucs4_t ucs4[31]; + + if (text) { + trim(text); + if (*text == 0) + return 0; + } + + frame = id3_frame_new(id); + if (frame == 0) + return -1; + + if (id3_field_settextencoding(&frame->fields[0], + ID3_FIELD_TEXTENCODING_ISO_8859_1) == -1) + goto fail; + + if (text) + id3_latin1_decode(text, ucs4); + else + id3_ucs4_putnumber(ucs4, number); + + if (strcmp(id, ID3_FRAME_COMMENT) == 0) { + if (id3_field_setlanguage(&frame->fields[1], "XXX") == -1 || + id3_field_setstring(&frame->fields[2], id3_ucs4_empty) == -1 || + id3_field_setfullstring(&frame->fields[3], ucs4) == -1) + goto fail; + } + else { + id3_ucs4_t *ptr = ucs4; + + if (id3_field_setstrings(&frame->fields[1], 1, &ptr) == -1) + goto fail; + } + + if (id3_tag_attachframe(tag, frame) == -1) + goto fail; + + return 0; + + fail: + id3_frame_delete(frame); + return -1; +} + +static +struct id3_tag *v1_parse(id3_byte_t const *data) +{ + struct id3_tag *tag; + + tag = id3_tag_new(); + if (tag) { + char title[31], artist[31], album[31], year[5], comment[31]; + unsigned int genre, track; + + tag->version = 0x0100; + + tag->options |= ID3_TAG_OPTION_ID3V1; + tag->options &= ~ID3_TAG_OPTION_COMPRESSION; + + tag->restrictions = + ID3_TAG_RESTRICTION_TEXTENCODING_LATIN1_UTF8 | + ID3_TAG_RESTRICTION_TEXTSIZE_30_CHARS; + + title[30] = artist[30] = album[30] = year[4] = comment[30] = 0; + + memcpy(title, &data[3], 30); + memcpy(artist, &data[33], 30); + memcpy(album, &data[63], 30); + memcpy(year, &data[93], 4); + memcpy(comment, &data[97], 30); + + genre = data[127]; + + track = 0; + if (comment[28] == 0 && comment[29] != 0) { + track = comment[29]; + tag->version = 0x0101; + } + + /* populate tag frames */ + + if (v1_attachstr(tag, ID3_FRAME_TITLE, title, 0) == -1 || + v1_attachstr(tag, ID3_FRAME_ARTIST, artist, 0) == -1 || + v1_attachstr(tag, ID3_FRAME_ALBUM, album, 0) == -1 || + v1_attachstr(tag, ID3_FRAME_YEAR, year, 0) == -1 || + (track && v1_attachstr(tag, ID3_FRAME_TRACK, 0, track) == -1) || + (genre < 0xff && v1_attachstr(tag, ID3_FRAME_GENRE, 0, genre) == -1) || + v1_attachstr(tag, ID3_FRAME_COMMENT, comment, 0) == -1) { + id3_tag_delete(tag); + tag = 0; + } + } + + return tag; +} + +static +struct id3_tag *v2_parse(id3_byte_t const *ptr) +{ + struct id3_tag *tag; + id3_byte_t *mem = 0; + + tag = id3_tag_new(); + if (tag) { + id3_byte_t const *end; + id3_length_t size; + + parse_header(&ptr, &tag->version, &tag->flags, &size); + + tag->paddedsize = 10 + size; + + if ((tag->flags & ID3_TAG_FLAG_UNSYNCHRONISATION) && + ID3_TAG_VERSION_MAJOR(tag->version) < 4) { + mem = malloc(size); + if (mem == 0) + goto fail; + + memcpy(mem, ptr, size); + + size = id3_util_deunsynchronise(mem, size); + ptr = mem; + } + + end = ptr + size; + + if (tag->flags & ID3_TAG_FLAG_EXTENDEDHEADER) { + switch (ID3_TAG_VERSION_MAJOR(tag->version)) { + case 2: + goto fail; + + case 3: + { + id3_byte_t const *ehptr, *ehend; + id3_length_t ehsize; + + enum { + EH_FLAG_CRC = 0x8000 /* CRC data present */ + }; + + if (end - ptr < 4) + goto fail; + + ehsize = id3_parse_uint(&ptr, 4); + + if (ehsize > end - ptr) + goto fail; + + ehptr = ptr; + ehend = ptr + ehsize; + + ptr = ehend; + + if (ehend - ehptr >= 6) { + int ehflags; + id3_length_t padsize; + + ehflags = id3_parse_uint(&ehptr, 2); + padsize = id3_parse_uint(&ehptr, 4); + + if (padsize > end - ptr) + goto fail; + + end -= padsize; + + if (ehflags & EH_FLAG_CRC) { + unsigned long crc; + + if (ehend - ehptr < 4) + goto fail; + + crc = id3_parse_uint(&ehptr, 4); + + if (crc != id3_crc_calculate(ptr, end - ptr)) + goto fail; + + tag->extendedflags |= ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT; + } + } + } + break; + + case 4: + { + id3_byte_t const *ehptr, *ehend; + id3_length_t ehsize; + unsigned int bytes; + + if (end - ptr < 4) + goto fail; + + ehptr = ptr; + ehsize = id3_parse_syncsafe(&ptr, 4); + + if (ehsize < 6 || ehsize > end - ehptr) + goto fail; + + ehend = ehptr + ehsize; + + bytes = id3_parse_uint(&ptr, 1); + + if (bytes < 1 || bytes > ehend - ptr) + goto fail; + + ehptr = ptr + bytes; + + /* verify extended header size */ + { + id3_byte_t const *flagsptr = ptr, *dataptr = ehptr; + unsigned int datalen; + int ehflags; + + while (bytes--) { + for (ehflags = id3_parse_uint(&flagsptr, 1); ehflags; + ehflags = (ehflags << 1) & 0xff) { + if (ehflags & 0x80) { + if (dataptr == ehend) + goto fail; + datalen = id3_parse_uint(&dataptr, 1); + if (datalen > 0x7f || datalen > ehend - dataptr) + goto fail; + dataptr += datalen; + } + } + } + } + + tag->extendedflags = id3_parse_uint(&ptr, 1); + + ptr = ehend; + + if (tag->extendedflags & ID3_TAG_EXTENDEDFLAG_TAGISANUPDATE) { + bytes = id3_parse_uint(&ehptr, 1); + ehptr += bytes; + } + + if (tag->extendedflags & ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT) { + unsigned long crc; + + bytes = id3_parse_uint(&ehptr, 1); + if (bytes < 5) + goto fail; + + crc = id3_parse_syncsafe(&ehptr, 5); + ehptr += bytes - 5; + + if (crc != id3_crc_calculate(ptr, end - ptr)) + goto fail; + } + + if (tag->extendedflags & ID3_TAG_EXTENDEDFLAG_TAGRESTRICTIONS) { + bytes = id3_parse_uint(&ehptr, 1); + if (bytes < 1) + goto fail; + + tag->restrictions = id3_parse_uint(&ehptr, 1); + ehptr += bytes - 1; + } + } + break; + } + } + + /* frames */ + + while (ptr < end) { + struct id3_frame *frame; + + if (*ptr == 0) + break; /* padding */ + + frame = id3_frame_parse(&ptr, end - ptr, tag->version); + if (frame == 0 || id3_tag_attachframe(tag, frame) == -1) + goto fail; + } + + if (ID3_TAG_VERSION_MAJOR(tag->version) < 4 && + id3_compat_fixup(tag) == -1) + goto fail; + } + + if (0) { + fail: + id3_tag_delete(tag); + tag = 0; + } + + if (mem) + free(mem); + + return tag; +} + +/* + * NAME: tag->parse() + * DESCRIPTION: parse a complete ID3 tag + */ +struct id3_tag *id3_tag_parse(id3_byte_t const *data, id3_length_t length) +{ + id3_byte_t const *ptr; + unsigned int version; + int flags; + id3_length_t size; + + assert(data); + + switch (tagtype(data, length)) { + case TAGTYPE_ID3V1: + return (length < 128) ? 0 : v1_parse(data); + + case TAGTYPE_ID3V2: + break; + + case TAGTYPE_ID3V2_FOOTER: + case TAGTYPE_NONE: + return 0; + } + + /* ID3v2.x */ + + ptr = data; + parse_header(&ptr, &version, &flags, &size); + + switch (ID3_TAG_VERSION_MAJOR(version)) { + case 4: + if (flags & ID3_TAG_FLAG_FOOTERPRESENT) + size += 10; + case 2: + case 3: + return (length < 10 + size) ? 0 : v2_parse(data); + } + + return 0; +} + +static +void v1_renderstr(struct id3_tag const *tag, char const *frameid, + id3_byte_t **buffer, id3_length_t length) +{ + struct id3_frame *frame; + id3_ucs4_t const *string; + + frame = id3_tag_findframe(tag, frameid, 0); + if (frame == 0) + string = id3_ucs4_empty; + else { + if (strcmp(frameid, ID3_FRAME_COMMENT) == 0) + string = id3_field_getfullstring(&frame->fields[3]); + else + string = id3_field_getstrings(&frame->fields[1], 0); + } + + id3_render_paddedstring(buffer, string, length); +} + +/* + * NAME: v1->render() + * DESCRIPTION: render an ID3v1 (or ID3v1.1) tag + */ +static +id3_length_t v1_render(struct id3_tag const *tag, id3_byte_t *buffer) +{ + id3_byte_t data[128], *ptr; + struct id3_frame *frame; + unsigned int i; + int genre = -1; + + ptr = data; + + id3_render_immediate(&ptr, "TAG", 3); + + v1_renderstr(tag, ID3_FRAME_TITLE, &ptr, 30); + v1_renderstr(tag, ID3_FRAME_ARTIST, &ptr, 30); + v1_renderstr(tag, ID3_FRAME_ALBUM, &ptr, 30); + v1_renderstr(tag, ID3_FRAME_YEAR, &ptr, 4); + v1_renderstr(tag, ID3_FRAME_COMMENT, &ptr, 30); + + /* ID3v1.1 track number */ + + frame = id3_tag_findframe(tag, ID3_FRAME_TRACK, 0); + if (frame) { + unsigned int track; + + track = id3_ucs4_getnumber(id3_field_getstrings(&frame->fields[1], 0)); + if (track > 0 && track <= 0xff) { + ptr[-2] = 0; + ptr[-1] = track; + } + } + + /* ID3v1 genre number */ + + frame = id3_tag_findframe(tag, ID3_FRAME_GENRE, 0); + if (frame) { + unsigned int nstrings; + + nstrings = id3_field_getnstrings(&frame->fields[1]); + + for (i = 0; i < nstrings; ++i) { + genre = id3_genre_number(id3_field_getstrings(&frame->fields[1], i)); + if (genre != -1) + break; + } + + if (i == nstrings && nstrings > 0) + genre = ID3_GENRE_OTHER; + } + + id3_render_int(&ptr, genre, 1); + + /* make sure the tag is not empty */ + + if (genre == -1) { + for (i = 3; i < 127; ++i) { + if (data[i] != ' ') + break; + } + + if (i == 127) + return 0; + } + + if (buffer) + memcpy(buffer, data, 128); + + return 128; +} + +/* + * NAME: tag->render() + * DESCRIPTION: render a complete ID3 tag + */ +id3_length_t id3_tag_render(struct id3_tag const *tag, id3_byte_t *buffer) +{ + id3_length_t size = 0; + id3_byte_t **ptr, + *header_ptr = 0, *tagsize_ptr = 0, *crc_ptr = 0, *frames_ptr = 0; + int flags, extendedflags; + unsigned int i; + + assert(tag); + + if (tag->options & ID3_TAG_OPTION_ID3V1) + return v1_render(tag, buffer); + + /* a tag must contain at least one (renderable) frame */ + + for (i = 0; i < tag->nframes; ++i) { + if (id3_frame_render(tag->frames[i], 0, 0) > 0) + break; + } + + if (i == tag->nframes) + return 0; + + ptr = buffer ? &buffer : 0; + + /* get flags */ + + flags = tag->flags & ID3_TAG_FLAG_KNOWNFLAGS; + extendedflags = tag->extendedflags & ID3_TAG_EXTENDEDFLAG_KNOWNFLAGS; + + extendedflags &= ~ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT; + if (tag->options & ID3_TAG_OPTION_CRC) + extendedflags |= ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT; + + extendedflags &= ~ID3_TAG_EXTENDEDFLAG_TAGRESTRICTIONS; + if (tag->restrictions) + extendedflags |= ID3_TAG_EXTENDEDFLAG_TAGRESTRICTIONS; + + flags &= ~ID3_TAG_FLAG_UNSYNCHRONISATION; + if (tag->options & ID3_TAG_OPTION_UNSYNCHRONISATION) + flags |= ID3_TAG_FLAG_UNSYNCHRONISATION; + + flags &= ~ID3_TAG_FLAG_EXTENDEDHEADER; + if (extendedflags) + flags |= ID3_TAG_FLAG_EXTENDEDHEADER; + + flags &= ~ID3_TAG_FLAG_FOOTERPRESENT; + if (tag->options & ID3_TAG_OPTION_APPENDEDTAG) + flags |= ID3_TAG_FLAG_FOOTERPRESENT; + + /* header */ + + if (ptr) + header_ptr = *ptr; + + size += id3_render_immediate(ptr, "ID3", 3); + size += id3_render_int(ptr, ID3_TAG_VERSION, 2); + size += id3_render_int(ptr, flags, 1); + + if (ptr) + tagsize_ptr = *ptr; + + size += id3_render_syncsafe(ptr, 0, 4); + + /* extended header */ + + if (flags & ID3_TAG_FLAG_EXTENDEDHEADER) { + id3_length_t ehsize = 0; + id3_byte_t *ehsize_ptr = 0; + + if (ptr) + ehsize_ptr = *ptr; + + ehsize += id3_render_syncsafe(ptr, 0, 4); + ehsize += id3_render_int(ptr, 1, 1); + ehsize += id3_render_int(ptr, extendedflags, 1); + + if (extendedflags & ID3_TAG_EXTENDEDFLAG_TAGISANUPDATE) + ehsize += id3_render_int(ptr, 0, 1); + + if (extendedflags & ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT) { + ehsize += id3_render_int(ptr, 5, 1); + + if (ptr) + crc_ptr = *ptr; + + ehsize += id3_render_syncsafe(ptr, 0, 5); + } + + if (extendedflags & ID3_TAG_EXTENDEDFLAG_TAGRESTRICTIONS) { + ehsize += id3_render_int(ptr, 1, 1); + ehsize += id3_render_int(ptr, tag->restrictions, 1); + } + + if (ehsize_ptr) + id3_render_syncsafe(&ehsize_ptr, ehsize, 4); + + size += ehsize; + } + + /* frames */ + + if (ptr) + frames_ptr = *ptr; + + for (i = 0; i < tag->nframes; ++i) + size += id3_frame_render(tag->frames[i], ptr, tag->options); + + /* padding */ + + if (!(flags & ID3_TAG_FLAG_FOOTERPRESENT)) { + if (size < tag->paddedsize) + size += id3_render_padding(ptr, 0, tag->paddedsize - size); + else if (tag->options & ID3_TAG_OPTION_UNSYNCHRONISATION) { + if (ptr == 0) + size += 1; + else { + if ((*ptr)[-1] == 0xff) + size += id3_render_padding(ptr, 0, 1); + } + } + } + + /* patch tag size and CRC */ + + if (tagsize_ptr) + id3_render_syncsafe(&tagsize_ptr, size - 10, 4); + + if (crc_ptr) { + id3_render_syncsafe(&crc_ptr, + id3_crc_calculate(frames_ptr, *ptr - frames_ptr), 5); + } + + /* footer */ + + if (flags & ID3_TAG_FLAG_FOOTERPRESENT) { + size += id3_render_immediate(ptr, "3DI", 3); + size += id3_render_binary(ptr, header_ptr + 3, 7); + } + + return size; +} diff --git a/src/libid3tag/tag.h b/src/libid3tag/tag.h new file mode 100644 index 000000000..ebc90960f --- /dev/null +++ b/src/libid3tag/tag.h @@ -0,0 +1,30 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: tag.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_TAG_H +# define LIBID3TAG_TAG_H + +# include "id3tag.h" + +void id3_tag_addref(struct id3_tag *); +void id3_tag_delref(struct id3_tag *); + +# endif diff --git a/src/libid3tag/ucs4.c b/src/libid3tag/ucs4.c new file mode 100644 index 000000000..7062e993a --- /dev/null +++ b/src/libid3tag/ucs4.c @@ -0,0 +1,224 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: ucs4.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> + +# include "id3tag.h" +# include "ucs4.h" +# include "latin1.h" +# include "utf16.h" +# include "utf8.h" + +id3_ucs4_t const id3_ucs4_empty[] = { 0 }; + +/* + * NAME: ucs4->length() + * DESCRIPTION: return the number of ucs4 chars represented by a ucs4 string + */ +id3_length_t id3_ucs4_length(id3_ucs4_t const *ucs4) +{ + id3_ucs4_t const *ptr = ucs4; + + while (*ptr) + ++ptr; + + return ptr - ucs4; +} + +/* + * NAME: ucs4->size() + * DESCRIPTION: return the encoding size of a ucs4 string + */ +id3_length_t id3_ucs4_size(id3_ucs4_t const *ucs4) +{ + return id3_ucs4_length(ucs4) + 1; +} + +/* + * NAME: ucs4->latin1size() + * DESCRIPTION: return the encoding size of a latin1-encoded ucs4 string + */ +id3_length_t id3_ucs4_latin1size(id3_ucs4_t const *ucs4) +{ + return id3_ucs4_size(ucs4); +} + +/* + * NAME: ucs4->utf16size() + * DESCRIPTION: return the encoding size of a utf16-encoded ucs4 string + */ +id3_length_t id3_ucs4_utf16size(id3_ucs4_t const *ucs4) +{ + id3_length_t size = 0; + + while (*ucs4) { + ++size; + if (*ucs4 >= 0x00010000L && + *ucs4 <= 0x0010ffffL) + ++size; + + ++ucs4; + } + + return size + 1; +} + +/* + * NAME: ucs4->utf8size() + * DESCRIPTION: return the encoding size of a utf8-encoded ucs4 string + */ +id3_length_t id3_ucs4_utf8size(id3_ucs4_t const *ucs4) +{ + id3_length_t size = 0; + + while (*ucs4) { + if (*ucs4 <= 0x0000007fL) + size += 1; + else if (*ucs4 <= 0x000007ffL) + size += 2; + else if (*ucs4 <= 0x0000ffffL) + size += 3; + else if (*ucs4 <= 0x001fffffL) + size += 4; + else if (*ucs4 <= 0x03ffffffL) + size += 5; + else if (*ucs4 <= 0x7fffffffL) + size += 6; + else + size += 2; /* based on U+00B7 replacement char */ + + ++ucs4; + } + + return size + 1; +} + +/* + * NAME: ucs4->latin1duplicate() + * DESCRIPTION: duplicate and encode a ucs4 string into latin1 + */ +id3_latin1_t *id3_ucs4_latin1duplicate(id3_ucs4_t const *ucs4) +{ + id3_latin1_t *latin1; + + latin1 = malloc(id3_ucs4_latin1size(ucs4) * sizeof(*latin1)); + if (latin1) + id3_latin1_encode(latin1, ucs4); + + return release(latin1); +} + +/* + * NAME: ucs4->utf16duplicate() + * DESCRIPTION: duplicate and encode a ucs4 string into utf16 + */ +id3_utf16_t *id3_ucs4_utf16duplicate(id3_ucs4_t const *ucs4) +{ + id3_utf16_t *utf16; + + utf16 = malloc(id3_ucs4_utf16size(ucs4) * sizeof(*utf16)); + if (utf16) + id3_utf16_encode(utf16, ucs4); + + return release(utf16); +} + +/* + * NAME: ucs4->utf8duplicate() + * DESCRIPTION: duplicate and encode a ucs4 string into utf8 + */ +id3_utf8_t *id3_ucs4_utf8duplicate(id3_ucs4_t const *ucs4) +{ + id3_utf8_t *utf8; + + utf8 = malloc(id3_ucs4_utf8size(ucs4) * sizeof(*utf8)); + if (utf8) + id3_utf8_encode(utf8, ucs4); + + return release(utf8); +} + +/* + * NAME: ucs4->copy() + * DESCRIPTION: copy a ucs4 string + */ +void id3_ucs4_copy(id3_ucs4_t *dest, id3_ucs4_t const *src) +{ + while ((*dest++ = *src++)) + ; +} + +/* + * NAME: ucs4->duplicate() + * DESCRIPTION: duplicate a ucs4 string + */ +id3_ucs4_t *id3_ucs4_duplicate(id3_ucs4_t const *src) +{ + id3_ucs4_t *ucs4; + + ucs4 = malloc(id3_ucs4_size(src) * sizeof(*ucs4)); + if (ucs4) + id3_ucs4_copy(ucs4, src); + + return ucs4; +} + +/* + * NAME: ucs4->putnumber() + * DESCRIPTION: write a ucs4 string containing a (positive) decimal number + */ +void id3_ucs4_putnumber(id3_ucs4_t *ucs4, unsigned long number) +{ + int digits[10], *digit; + + digit = digits; + + do { + *digit++ = number % 10; + number /= 10; + } + while (number); + + while (digit != digits) + *ucs4++ = '0' + *--digit; + + *ucs4 = 0; +} + +/* + * NAME: ucs4->getnumber() + * DESCRIPTION: read a ucs4 string containing a (positive) decimal number + */ +unsigned long id3_ucs4_getnumber(id3_ucs4_t const *ucs4) +{ + unsigned long number = 0; + + while (*ucs4 >= '0' && *ucs4 <= '9') + number = 10 * number + (*ucs4++ - '0'); + + return number; +} diff --git a/src/libid3tag/ucs4.h b/src/libid3tag/ucs4.h new file mode 100644 index 000000000..e1106dd1e --- /dev/null +++ b/src/libid3tag/ucs4.h @@ -0,0 +1,41 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: ucs4.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_UCS4_H +# define LIBID3TAG_UCS4_H + +# include "id3tag.h" + +# define ID3_UCS4_REPLACEMENTCHAR 0x000000b7L /* middle dot */ + +extern id3_ucs4_t const id3_ucs4_empty[]; + +id3_length_t id3_ucs4_length(id3_ucs4_t const *); +id3_length_t id3_ucs4_size(id3_ucs4_t const *); + +id3_length_t id3_ucs4_latin1size(id3_ucs4_t const *); +id3_length_t id3_ucs4_utf16size(id3_ucs4_t const *); +id3_length_t id3_ucs4_utf8size(id3_ucs4_t const *); + +void id3_ucs4_copy(id3_ucs4_t *, id3_ucs4_t const *); +id3_ucs4_t *id3_ucs4_duplicate(id3_ucs4_t const *); + +# endif diff --git a/src/libid3tag/utf16.c b/src/libid3tag/utf16.c new file mode 100644 index 000000000..8b8f47934 --- /dev/null +++ b/src/libid3tag/utf16.c @@ -0,0 +1,286 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: utf16.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> + +# include "id3tag.h" +# include "utf16.h" +# include "ucs4.h" + +/* + * NAME: utf16->length() + * DESCRIPTION: return the number of ucs4 chars represented by a utf16 string + */ +id3_length_t id3_utf16_length(id3_utf16_t const *utf16) +{ + id3_length_t length = 0; + + while (*utf16) { + if (utf16[0] < 0xd800 || utf16[0] > 0xdfff) + ++length; + else if (utf16[0] >= 0xd800 && utf16[0] <= 0xdbff && + utf16[1] >= 0xdc00 && utf16[1] <= 0xdfff) { + ++length; + ++utf16; + } + + ++utf16; + } + + return length; +} + +/* + * NAME: utf16->size() + * DESCRIPTION: return the encoding size of a utf16 string + */ +id3_length_t id3_utf16_size(id3_utf16_t const *utf16) +{ + id3_utf16_t const *ptr = utf16; + + while (*ptr) + ++ptr; + + return ptr - utf16 + 1; +} + +/* + * NAME: utf16->ucs4duplicate() + * DESCRIPTION: duplicate and decode a utf16 string into ucs4 + */ +id3_ucs4_t *id3_utf16_ucs4duplicate(id3_utf16_t const *utf16) +{ + id3_ucs4_t *ucs4; + + ucs4 = malloc((id3_utf16_length(utf16) + 1) * sizeof(*ucs4)); + if (ucs4) + id3_utf16_decode(utf16, ucs4); + + return release(ucs4); +} + +/* + * NAME: utf16->decodechar() + * DESCRIPTION: decode a series of utf16 chars into a single ucs4 char + */ +id3_length_t id3_utf16_decodechar(id3_utf16_t const *utf16, id3_ucs4_t *ucs4) +{ + id3_utf16_t const *start = utf16; + + while (1) { + if (utf16[0] < 0xd800 || utf16[0] > 0xdfff) { + *ucs4 = utf16[0]; + return utf16 - start + 1; + } + else if (utf16[0] >= 0xd800 && utf16[0] <= 0xdbff && + utf16[1] >= 0xdc00 && utf16[1] <= 0xdfff) { + *ucs4 = (((utf16[0] & 0x03ffL) << 10) | + ((utf16[1] & 0x03ffL) << 0)) + 0x00010000L; + return utf16 - start + 2; + } + + ++utf16; + } +} + +/* + * NAME: utf16->encodechar() + * DESCRIPTION: encode a single ucs4 char into a series of up to 2 utf16 chars + */ +id3_length_t id3_utf16_encodechar(id3_utf16_t *utf16, id3_ucs4_t ucs4) +{ + if (ucs4 < 0x00010000L) { + utf16[0] = ucs4; + + return 1; + } + else if (ucs4 < 0x00110000L) { + ucs4 -= 0x00010000L; + + utf16[0] = ((ucs4 >> 10) & 0x3ff) | 0xd800; + utf16[1] = ((ucs4 >> 0) & 0x3ff) | 0xdc00; + + return 2; + } + + /* default */ + + return id3_utf16_encodechar(utf16, ID3_UCS4_REPLACEMENTCHAR); +} + +/* + * NAME: utf16->decode() + * DESCRIPTION: decode a complete utf16 string into a ucs4 string + */ +void id3_utf16_decode(id3_utf16_t const *utf16, id3_ucs4_t *ucs4) +{ + do + utf16 += id3_utf16_decodechar(utf16, ucs4); + while (*ucs4++); +} + +/* + * NAME: utf16->encode() + * DESCRIPTION: encode a complete ucs4 string into a utf16 string + */ +void id3_utf16_encode(id3_utf16_t *utf16, id3_ucs4_t const *ucs4) +{ + do + utf16 += id3_utf16_encodechar(utf16, *ucs4); + while (*ucs4++); +} + +/* + * NAME: utf16->put() + * DESCRIPTION: serialize a single utf16 character + */ +id3_length_t id3_utf16_put(id3_byte_t **ptr, id3_utf16_t utf16, + enum id3_utf16_byteorder byteorder) +{ + if (ptr) { + switch (byteorder) { + default: + case ID3_UTF16_BYTEORDER_BE: + (*ptr)[0] = (utf16 >> 8) & 0xff; + (*ptr)[1] = (utf16 >> 0) & 0xff; + break; + + case ID3_UTF16_BYTEORDER_LE: + (*ptr)[0] = (utf16 >> 0) & 0xff; + (*ptr)[1] = (utf16 >> 8) & 0xff; + break; + } + + *ptr += 2; + } + + return 2; +} + +/* + * NAME: utf16->get() + * DESCRIPTION: deserialize a single utf16 character + */ +id3_utf16_t id3_utf16_get(id3_byte_t const **ptr, + enum id3_utf16_byteorder byteorder) +{ + id3_utf16_t utf16; + + switch (byteorder) { + default: + case ID3_UTF16_BYTEORDER_BE: + utf16 = + ((*ptr)[0] << 8) | + ((*ptr)[1] << 0); + break; + + case ID3_UTF16_BYTEORDER_LE: + utf16 = + ((*ptr)[0] << 0) | + ((*ptr)[1] << 8); + break; + } + + *ptr += 2; + + return utf16; +} + +/* + * NAME: utf16->serialize() + * DESCRIPTION: serialize a ucs4 string using utf16 encoding + */ +id3_length_t id3_utf16_serialize(id3_byte_t **ptr, id3_ucs4_t const *ucs4, + enum id3_utf16_byteorder byteorder, + int terminate) +{ + id3_length_t size = 0; + id3_utf16_t utf16[2], *out; + + if (byteorder == ID3_UTF16_BYTEORDER_ANY) + size += id3_utf16_put(ptr, 0xfeff, byteorder); + + while (*ucs4) { + switch (id3_utf16_encodechar(out = utf16, *ucs4++)) { + case 2: size += id3_utf16_put(ptr, *out++, byteorder); + case 1: size += id3_utf16_put(ptr, *out++, byteorder); + case 0: break; + } + } + + if (terminate) + size += id3_utf16_put(ptr, 0, byteorder); + + return size; +} + +/* + * NAME: utf16->deserialize() + * DESCRIPTION: deserialize a ucs4 string using utf16 encoding + */ +id3_ucs4_t *id3_utf16_deserialize(id3_byte_t const **ptr, id3_length_t length, + enum id3_utf16_byteorder byteorder) +{ + id3_byte_t const *end; + id3_utf16_t *utf16ptr, *utf16; + id3_ucs4_t *ucs4; + + end = *ptr + (length & ~1); + + utf16 = malloc((length / 2 + 1) * sizeof(*utf16)); + if (utf16 == 0) + return 0; + + if (byteorder == ID3_UTF16_BYTEORDER_ANY && end - *ptr > 0) { + switch (((*ptr)[0] << 8) | + ((*ptr)[1] << 0)) { + case 0xfeff: + byteorder = ID3_UTF16_BYTEORDER_BE; + *ptr += 2; + break; + + case 0xfffe: + byteorder = ID3_UTF16_BYTEORDER_LE; + *ptr += 2; + break; + } + } + + utf16ptr = utf16; + while (end - *ptr > 0 && (*utf16ptr = id3_utf16_get(ptr, byteorder))) + ++utf16ptr; + + *utf16ptr = 0; + + ucs4 = malloc((id3_utf16_length(utf16) + 1) * sizeof(*ucs4)); + if (ucs4) + id3_utf16_decode(utf16, ucs4); + + free(utf16); + + return ucs4; +} diff --git a/src/libid3tag/utf16.h b/src/libid3tag/utf16.h new file mode 100644 index 000000000..6159d2bbc --- /dev/null +++ b/src/libid3tag/utf16.h @@ -0,0 +1,51 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: utf16.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_UTF16_H +# define LIBID3TAG_UTF16_H + +# include "id3tag.h" + +enum id3_utf16_byteorder { + ID3_UTF16_BYTEORDER_ANY, + ID3_UTF16_BYTEORDER_BE, + ID3_UTF16_BYTEORDER_LE +}; + +id3_length_t id3_utf16_length(id3_utf16_t const *); +id3_length_t id3_utf16_size(id3_utf16_t const *); + +id3_length_t id3_utf16_decodechar(id3_utf16_t const *, id3_ucs4_t *); +id3_length_t id3_utf16_encodechar(id3_utf16_t *, id3_ucs4_t); + +void id3_utf16_decode(id3_utf16_t const *, id3_ucs4_t *); +void id3_utf16_encode(id3_utf16_t *, id3_ucs4_t const *); + +id3_length_t id3_utf16_put(id3_byte_t **, id3_utf16_t, + enum id3_utf16_byteorder); +id3_utf16_t id3_utf16_get(id3_byte_t const **, enum id3_utf16_byteorder); + +id3_length_t id3_utf16_serialize(id3_byte_t **, id3_ucs4_t const *, + enum id3_utf16_byteorder, int); +id3_ucs4_t *id3_utf16_deserialize(id3_byte_t const **, id3_length_t, + enum id3_utf16_byteorder); + +# endif diff --git a/src/libid3tag/utf8.c b/src/libid3tag/utf8.c new file mode 100644 index 000000000..76b08719b --- /dev/null +++ b/src/libid3tag/utf8.c @@ -0,0 +1,365 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: utf8.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> + +# include "id3tag.h" +# include "utf8.h" +# include "ucs4.h" + +/* + * NAME: utf8->length() + * DESCRIPTION: return the number of ucs4 chars represented by a utf8 string + */ +id3_length_t id3_utf8_length(id3_utf8_t const *utf8) +{ + id3_length_t length = 0; + + while (*utf8) { + if ((utf8[0] & 0x80) == 0x00) + ++length; + else if ((utf8[0] & 0xe0) == 0xc0 && + (utf8[1] & 0xc0) == 0x80) { + if (((utf8[0] & 0x1fL) << 6) >= 0x00000080L) { + ++length; + utf8 += 1; + } + } + else if ((utf8[0] & 0xf0) == 0xe0 && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80) { + if ((((utf8[0] & 0x0fL) << 12) | + ((utf8[1] & 0x3fL) << 6)) >= 0x00000800L) { + ++length; + utf8 += 2; + } + } + else if ((utf8[0] & 0xf8) == 0xf0 && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80 && + (utf8[3] & 0xc0) == 0x80) { + if ((((utf8[0] & 0x07L) << 18) | + ((utf8[1] & 0x3fL) << 12)) >= 0x00010000L) { + ++length; + utf8 += 3; + } + } + else if ((utf8[0] & 0xfc) == 0xf8 && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80 && + (utf8[3] & 0xc0) == 0x80 && + (utf8[4] & 0xc0) == 0x80) { + if ((((utf8[0] & 0x03L) << 24) | + ((utf8[0] & 0x3fL) << 18)) >= 0x00200000L) { + ++length; + utf8 += 4; + } + } + else if ((utf8[0] & 0xfe) == 0xfc && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80 && + (utf8[3] & 0xc0) == 0x80 && + (utf8[4] & 0xc0) == 0x80 && + (utf8[5] & 0xc0) == 0x80) { + if ((((utf8[0] & 0x01L) << 30) | + ((utf8[0] & 0x3fL) << 24)) >= 0x04000000L) { + ++length; + utf8 += 5; + } + } + + ++utf8; + } + + return length; +} + +/* + * NAME: utf8->size() + * DESCRIPTION: return the encoding size of a utf8 string + */ +id3_length_t id3_utf8_size(id3_utf8_t const *utf8) +{ + id3_utf8_t const *ptr = utf8; + + while (*ptr) + ++ptr; + + return ptr - utf8 + 1; +} + +/* + * NAME: utf8->ucs4duplicate() + * DESCRIPTION: duplicate and decode a utf8 string into ucs4 + */ +id3_ucs4_t *id3_utf8_ucs4duplicate(id3_utf8_t const *utf8) +{ + id3_ucs4_t *ucs4; + + ucs4 = malloc((id3_utf8_length(utf8) + 1) * sizeof(*ucs4)); + if (ucs4) + id3_utf8_decode(utf8, ucs4); + + return release(ucs4); +} + +/* + * NAME: utf8->decodechar() + * DESCRIPTION: decode a series of utf8 chars into a single ucs4 char + */ +id3_length_t id3_utf8_decodechar(id3_utf8_t const *utf8, id3_ucs4_t *ucs4) +{ + id3_utf8_t const *start = utf8; + + while (1) { + if ((utf8[0] & 0x80) == 0x00) { + *ucs4 = utf8[0]; + return utf8 - start + 1; + } + else if ((utf8[0] & 0xe0) == 0xc0 && + (utf8[1] & 0xc0) == 0x80) { + *ucs4 = + ((utf8[0] & 0x1fL) << 6) | + ((utf8[1] & 0x3fL) << 0); + if (*ucs4 >= 0x00000080L) + return utf8 - start + 2; + } + else if ((utf8[0] & 0xf0) == 0xe0 && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80) { + *ucs4 = + ((utf8[0] & 0x0fL) << 12) | + ((utf8[1] & 0x3fL) << 6) | + ((utf8[2] & 0x3fL) << 0); + if (*ucs4 >= 0x00000800L) + return utf8 - start + 3; + } + else if ((utf8[0] & 0xf8) == 0xf0 && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80 && + (utf8[3] & 0xc0) == 0x80) { + *ucs4 = + ((utf8[0] & 0x07L) << 18) | + ((utf8[1] & 0x3fL) << 12) | + ((utf8[2] & 0x3fL) << 6) | + ((utf8[3] & 0x3fL) << 0); + if (*ucs4 >= 0x00010000L) + return utf8 - start + 4; + } + else if ((utf8[0] & 0xfc) == 0xf8 && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80 && + (utf8[3] & 0xc0) == 0x80 && + (utf8[4] & 0xc0) == 0x80) { + *ucs4 = + ((utf8[0] & 0x03L) << 24) | + ((utf8[1] & 0x3fL) << 18) | + ((utf8[2] & 0x3fL) << 12) | + ((utf8[3] & 0x3fL) << 6) | + ((utf8[4] & 0x3fL) << 0); + if (*ucs4 >= 0x00200000L) + return utf8 - start + 5; + } + else if ((utf8[0] & 0xfe) == 0xfc && + (utf8[1] & 0xc0) == 0x80 && + (utf8[2] & 0xc0) == 0x80 && + (utf8[3] & 0xc0) == 0x80 && + (utf8[4] & 0xc0) == 0x80 && + (utf8[5] & 0xc0) == 0x80) { + *ucs4 = + ((utf8[0] & 0x01L) << 30) | + ((utf8[1] & 0x3fL) << 24) | + ((utf8[2] & 0x3fL) << 18) | + ((utf8[3] & 0x3fL) << 12) | + ((utf8[4] & 0x3fL) << 6) | + ((utf8[5] & 0x3fL) << 0); + if (*ucs4 >= 0x04000000L) + return utf8 - start + 6; + } + + ++utf8; + } +} + +/* + * NAME: utf8->encodechar() + * DESCRIPTION: encode a single ucs4 char into a series of up to 6 utf8 chars + */ +id3_length_t id3_utf8_encodechar(id3_utf8_t *utf8, id3_ucs4_t ucs4) +{ + if (ucs4 <= 0x0000007fL) { + utf8[0] = ucs4; + + return 1; + } + else if (ucs4 <= 0x000007ffL) { + utf8[0] = 0xc0 | ((ucs4 >> 6) & 0x1f); + utf8[1] = 0x80 | ((ucs4 >> 0) & 0x3f); + + return 2; + } + else if (ucs4 <= 0x0000ffffL) { + utf8[0] = 0xe0 | ((ucs4 >> 12) & 0x0f); + utf8[1] = 0x80 | ((ucs4 >> 6) & 0x3f); + utf8[2] = 0x80 | ((ucs4 >> 0) & 0x3f); + + return 3; + } + else if (ucs4 <= 0x001fffffL) { + utf8[0] = 0xf0 | ((ucs4 >> 18) & 0x07); + utf8[1] = 0x80 | ((ucs4 >> 12) & 0x3f); + utf8[2] = 0x80 | ((ucs4 >> 6) & 0x3f); + utf8[3] = 0x80 | ((ucs4 >> 0) & 0x3f); + + return 4; + } + else if (ucs4 <= 0x03ffffffL) { + utf8[0] = 0xf8 | ((ucs4 >> 24) & 0x03); + utf8[1] = 0x80 | ((ucs4 >> 18) & 0x3f); + utf8[2] = 0x80 | ((ucs4 >> 12) & 0x3f); + utf8[3] = 0x80 | ((ucs4 >> 6) & 0x3f); + utf8[4] = 0x80 | ((ucs4 >> 0) & 0x3f); + + return 5; + } + else if (ucs4 <= 0x7fffffffL) { + utf8[0] = 0xfc | ((ucs4 >> 30) & 0x01); + utf8[1] = 0x80 | ((ucs4 >> 24) & 0x3f); + utf8[2] = 0x80 | ((ucs4 >> 18) & 0x3f); + utf8[3] = 0x80 | ((ucs4 >> 12) & 0x3f); + utf8[4] = 0x80 | ((ucs4 >> 6) & 0x3f); + utf8[5] = 0x80 | ((ucs4 >> 0) & 0x3f); + + return 6; + } + + /* default */ + + return id3_utf8_encodechar(utf8, ID3_UCS4_REPLACEMENTCHAR); +} + +/* + * NAME: utf8->decode() + * DESCRIPTION: decode a complete utf8 string into a ucs4 string + */ +void id3_utf8_decode(id3_utf8_t const *utf8, id3_ucs4_t *ucs4) +{ + do + utf8 += id3_utf8_decodechar(utf8, ucs4); + while (*ucs4++); +} + +/* + * NAME: utf8->encode() + * DESCRIPTION: encode a complete ucs4 string into a utf8 string + */ +void id3_utf8_encode(id3_utf8_t *utf8, id3_ucs4_t const *ucs4) +{ + do + utf8 += id3_utf8_encodechar(utf8, *ucs4); + while (*ucs4++); +} + +/* + * NAME: utf8->put() + * DESCRIPTION: serialize a single utf8 character + */ +id3_length_t id3_utf8_put(id3_byte_t **ptr, id3_utf8_t utf8) +{ + if (ptr) + *(*ptr)++ = utf8; + + return 1; +} + +/* + * NAME: utf8->get() + * DESCRIPTION: deserialize a single utf8 character + */ +id3_utf8_t id3_utf8_get(id3_byte_t const **ptr) +{ + return *(*ptr)++; +} + +/* + * NAME: utf8->serialize() + * DESCRIPTION: serialize a ucs4 string using utf8 encoding + */ +id3_length_t id3_utf8_serialize(id3_byte_t **ptr, id3_ucs4_t const *ucs4, + int terminate) +{ + id3_length_t size = 0; + id3_utf8_t utf8[6], *out; + + while (*ucs4) { + switch (id3_utf8_encodechar(out = utf8, *ucs4++)) { + case 6: size += id3_utf8_put(ptr, *out++); + case 5: size += id3_utf8_put(ptr, *out++); + case 4: size += id3_utf8_put(ptr, *out++); + case 3: size += id3_utf8_put(ptr, *out++); + case 2: size += id3_utf8_put(ptr, *out++); + case 1: size += id3_utf8_put(ptr, *out++); + case 0: break; + } + } + + if (terminate) + size += id3_utf8_put(ptr, 0); + + return size; +} + +/* + * NAME: utf8->deserialize() + * DESCRIPTION: deserialize a ucs4 string using utf8 encoding + */ +id3_ucs4_t *id3_utf8_deserialize(id3_byte_t const **ptr, id3_length_t length) +{ + id3_byte_t const *end; + id3_utf8_t *utf8ptr, *utf8; + id3_ucs4_t *ucs4; + + end = *ptr + length; + + utf8 = malloc((length + 1) * sizeof(*utf8)); + if (utf8 == 0) + return 0; + + utf8ptr = utf8; + while (end - *ptr > 0 && (*utf8ptr = id3_utf8_get(ptr))) + ++utf8ptr; + + *utf8ptr = 0; + + ucs4 = malloc((id3_utf8_length(utf8) + 1) * sizeof(*ucs4)); + if (ucs4) + id3_utf8_decode(utf8, ucs4); + + free(utf8); + + return ucs4; +} diff --git a/src/libid3tag/utf8.h b/src/libid3tag/utf8.h new file mode 100644 index 000000000..98f1445a7 --- /dev/null +++ b/src/libid3tag/utf8.h @@ -0,0 +1,42 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: utf8.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_UTF8_H +# define LIBID3TAG_UTF8_H + +# include "id3tag.h" + +id3_length_t id3_utf8_length(id3_utf8_t const *); +id3_length_t id3_utf8_size(id3_utf8_t const *); + +id3_length_t id3_utf8_decodechar(id3_utf8_t const *, id3_ucs4_t *); +id3_length_t id3_utf8_encodechar(id3_utf8_t *, id3_ucs4_t); + +void id3_utf8_decode(id3_utf8_t const *, id3_ucs4_t *); +void id3_utf8_encode(id3_utf8_t *, id3_ucs4_t const *); + +id3_length_t id3_utf8_put(id3_byte_t **, id3_utf8_t); +id3_utf8_t id3_utf8_get(id3_byte_t const **); + +id3_length_t id3_utf8_serialize(id3_byte_t **, id3_ucs4_t const *, int); +id3_ucs4_t *id3_utf8_deserialize(id3_byte_t const **, id3_length_t); + +# endif diff --git a/src/libid3tag/util.c b/src/libid3tag/util.c new file mode 100644 index 000000000..a7ecc25f3 --- /dev/null +++ b/src/libid3tag/util.c @@ -0,0 +1,147 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: util.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include <stdlib.h> +# include <zlib.h> + +# include "id3tag.h" +# include "util.h" + +/* + * NAME: util->unsynchronise() + * DESCRIPTION: perform (in-place) unsynchronisation + */ +id3_length_t id3_util_unsynchronise(id3_byte_t *data, id3_length_t length) +{ + id3_length_t bytes = 0, count; + id3_byte_t *end = data + length; + id3_byte_t const *ptr; + + if (length == 0) + return 0; + + for (ptr = data; ptr < end - 1; ++ptr) { + if (ptr[0] == 0xff && (ptr[1] == 0x00 || (ptr[1] & 0xe0) == 0xe0)) + ++bytes; + } + + if (bytes) { + ptr = end; + end += bytes; + + *--end = *--ptr; + + for (count = bytes; count; *--end = *--ptr) { + if (ptr[-1] == 0xff && (ptr[0] == 0x00 || (ptr[0] & 0xe0) == 0xe0)) { + *--end = 0x00; + --count; + } + } + } + + return length + bytes; +} + +/* + * NAME: util->deunsynchronise() + * DESCRIPTION: undo unsynchronisation (in-place) + */ +id3_length_t id3_util_deunsynchronise(id3_byte_t *data, id3_length_t length) +{ + id3_byte_t const *old, *end = data + length; + id3_byte_t *new; + + if (length == 0) + return 0; + + for (old = new = data; old < end - 1; ++old) { + *new++ = *old; + if (old[0] == 0xff && old[1] == 0x00) + ++old; + } + + *new++ = *old; + + return new - data; +} + +/* + * NAME: util->compress() + * DESCRIPTION: perform zlib deflate method compression + */ +id3_byte_t *id3_util_compress(id3_byte_t const *data, id3_length_t length, + id3_length_t *newlength) +{ + id3_byte_t *compressed; + + *newlength = length + 12; + *newlength += *newlength / 1000; + + compressed = malloc(*newlength); + if (compressed) { + if (compress2(compressed, newlength, data, length, + Z_BEST_COMPRESSION) != Z_OK || + *newlength >= length) { + free(compressed); + compressed = 0; + } + else { + id3_byte_t *resized; + + resized = realloc(compressed, *newlength ? *newlength : 1); + if (resized) + compressed = resized; + } + } + + return compressed; +} + +/* + * NAME: util->decompress() + * DESCRIPTION: undo zlib deflate method compression + */ +id3_byte_t *id3_util_decompress(id3_byte_t const *data, id3_length_t length, + id3_length_t newlength) +{ + id3_byte_t *decompressed; + + decompressed = malloc(newlength ? newlength : 1); + if (decompressed) { + id3_length_t size; + + size = newlength; + + if (uncompress(decompressed, &size, data, length) != Z_OK || + size != newlength) { + free(decompressed); + decompressed = 0; + } + } + + return decompressed; +} diff --git a/src/libid3tag/util.h b/src/libid3tag/util.h new file mode 100644 index 000000000..12eb99390 --- /dev/null +++ b/src/libid3tag/util.h @@ -0,0 +1,35 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: util.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_UTIL_H +# define LIBID3TAG_UTIL_H + +# include "id3tag.h" + +id3_length_t id3_util_unsynchronise(id3_byte_t *, id3_length_t); +id3_length_t id3_util_deunsynchronise(id3_byte_t *, id3_length_t); + +id3_byte_t *id3_util_compress(id3_byte_t const *, id3_length_t, + id3_length_t *); +id3_byte_t *id3_util_decompress(id3_byte_t const *, id3_length_t, + id3_length_t); + +# endif diff --git a/src/libid3tag/version.c b/src/libid3tag/version.c new file mode 100644 index 000000000..7dfd97cce --- /dev/null +++ b/src/libid3tag/version.c @@ -0,0 +1,45 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: version.c,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif + +# include "global.h" + +# include "id3tag.h" +# include "version.h" + +char const id3_version[] = "ID3 Tag Library " ID3_VERSION; +char const id3_copyright[] = "Copyright (C) " ID3_PUBLISHYEAR " " ID3_AUTHOR; +char const id3_author[] = ID3_AUTHOR " <" ID3_EMAIL ">"; + +char const id3_build[] = "" +# if defined(DEBUG) + "DEBUG " +# elif defined(NDEBUG) + "NDEBUG " +# endif + +# if defined(EXPERIMENTAL) + "EXPERIMENTAL " +# endif +; diff --git a/src/libid3tag/version.h b/src/libid3tag/version.h new file mode 100644 index 000000000..e68a486a8 --- /dev/null +++ b/src/libid3tag/version.h @@ -0,0 +1,25 @@ +/* + * libid3tag - ID3 tag manipulation library + * Copyright (C) 2000-2003 Underbit Technologies, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: version.h,v 1.1 2003/08/14 03:57:13 shank Exp $ + */ + +# ifndef LIBID3TAG_VERSION_H +# define LIBID3TAG_VERSION_H + +# endif |