From 5101ef4b028c8f661801f78ba0fe73fab0e80f7f Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Wed, 4 Sep 2013 23:46:20 +0200 Subject: Tag*: move libtag.a sources to src/tag/ --- src/TagId3.cxx | 583 --------------------------------------------------------- 1 file changed, 583 deletions(-) delete mode 100644 src/TagId3.cxx (limited to 'src/TagId3.cxx') diff --git a/src/TagId3.cxx b/src/TagId3.cxx deleted file mode 100644 index 3f7605f5e..000000000 --- a/src/TagId3.cxx +++ /dev/null @@ -1,583 +0,0 @@ -/* - * Copyright (C) 2003-2013 The Music Player Daemon Project - * http://www.musicpd.org - * - * 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., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "TagId3.hxx" -#include "TagHandler.hxx" -#include "TagTable.hxx" -#include "Tag.hxx" -#include "util/Error.hxx" - -extern "C" { -#include "riff.h" -#include "aiff.h" -} - -#include "conf.h" - -#include -#include - -#include -#include -#include -#include - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "id3" - -# ifndef ID3_FRAME_COMPOSER -# define ID3_FRAME_COMPOSER "TCOM" -# endif -# ifndef ID3_FRAME_DISC -# define ID3_FRAME_DISC "TPOS" -# endif - -#ifndef ID3_FRAME_ARTIST_SORT -#define ID3_FRAME_ARTIST_SORT "TSOP" -#endif - -#ifndef ID3_FRAME_ALBUM_ARTIST_SORT -#define ID3_FRAME_ALBUM_ARTIST_SORT "TSO2" /* this one is unofficial, introduced by Itunes */ -#endif - -#ifndef ID3_FRAME_ALBUM_ARTIST -#define ID3_FRAME_ALBUM_ARTIST "TPE2" -#endif - -static inline bool -tag_is_id3v1(struct id3_tag *tag) -{ - return (id3_tag_options(tag, 0, 0) & ID3_TAG_OPTION_ID3V1) != 0; -} - -static id3_utf8_t * -tag_id3_getstring(const struct id3_frame *frame, unsigned i) -{ - union id3_field *field; - const id3_ucs4_t *ucs4; - - field = id3_frame_field(frame, i); - if (field == nullptr) - return nullptr; - - ucs4 = id3_field_getstring(field); - if (ucs4 == nullptr) - return nullptr; - - return id3_ucs4_utf8duplicate(ucs4); -} - -/* This will try to convert a string to utf-8, - */ -static id3_utf8_t * -import_id3_string(bool is_id3v1, const id3_ucs4_t *ucs4) -{ - id3_utf8_t *utf8, *utf8_stripped; - id3_latin1_t *isostr; - const char *encoding; - - /* use encoding field here? */ - if (is_id3v1 && - (encoding = config_get_string(CONF_ID3V1_ENCODING, nullptr)) != nullptr) { - isostr = id3_ucs4_latin1duplicate(ucs4); - if (G_UNLIKELY(!isostr)) { - return nullptr; - } - - utf8 = (id3_utf8_t *) - g_convert_with_fallback((const char*)isostr, -1, - "utf-8", encoding, - nullptr, nullptr, - nullptr, nullptr); - if (utf8 == nullptr) { - g_debug("Unable to convert %s string to UTF-8: '%s'", - encoding, isostr); - g_free(isostr); - return nullptr; - } - g_free(isostr); - } else { - utf8 = id3_ucs4_utf8duplicate(ucs4); - if (G_UNLIKELY(!utf8)) { - return nullptr; - } - } - - utf8_stripped = (id3_utf8_t *)g_strdup(g_strstrip((gchar *)utf8)); - g_free(utf8); - - return utf8_stripped; -} - -/** - * Import a "Text information frame" (ID3v2.4.0 section 4.2). It - * contains 2 fields: - * - * - encoding - * - string list - */ -static void -tag_id3_import_text_frame(struct id3_tag *tag, const struct id3_frame *frame, - enum tag_type type, - const struct tag_handler *handler, void *handler_ctx) -{ - id3_ucs4_t const *ucs4; - id3_utf8_t *utf8; - union id3_field const *field; - unsigned int nstrings, i; - - if (frame->nfields != 2) - return; - - /* check the encoding field */ - - field = id3_frame_field(frame, 0); - if (field == nullptr || field->type != ID3_FIELD_TYPE_TEXTENCODING) - return; - - /* process the value(s) */ - - field = id3_frame_field(frame, 1); - if (field == nullptr || field->type != ID3_FIELD_TYPE_STRINGLIST) - return; - - /* Get the number of strings available */ - nstrings = id3_field_getnstrings(field); - for (i = 0; i < nstrings; i++) { - ucs4 = id3_field_getstrings(field, i); - if (ucs4 == nullptr) - continue; - - if (type == TAG_GENRE) - ucs4 = id3_genre_name(ucs4); - - utf8 = import_id3_string(tag_is_id3v1(tag), ucs4); - if (utf8 == nullptr) - continue; - - tag_handler_invoke_tag(handler, handler_ctx, - type, (const char *)utf8); - g_free(utf8); - } -} - -/** - * Import all text frames with the specified id (ID3v2.4.0 section - * 4.2). This is a wrapper for tag_id3_import_text_frame(). - */ -static void -tag_id3_import_text(struct id3_tag *tag, const char *id, enum tag_type type, - const struct tag_handler *handler, void *handler_ctx) -{ - const struct id3_frame *frame; - for (unsigned i = 0; - (frame = id3_tag_findframe(tag, id, i)) != nullptr; ++i) - tag_id3_import_text_frame(tag, frame, type, - handler, handler_ctx); -} - -/** - * Import a "Comment frame" (ID3v2.4.0 section 4.10). It - * contains 4 fields: - * - * - encoding - * - language - * - string - * - full string (we use this one) - */ -static void -tag_id3_import_comment_frame(struct id3_tag *tag, - const struct id3_frame *frame, enum tag_type type, - const struct tag_handler *handler, - void *handler_ctx) -{ - id3_ucs4_t const *ucs4; - id3_utf8_t *utf8; - union id3_field const *field; - - if (frame->nfields != 4) - return; - - /* for now I only read the 4th field, with the fullstring */ - field = id3_frame_field(frame, 3); - if (field == nullptr) - return; - - ucs4 = id3_field_getfullstring(field); - if (ucs4 == nullptr) - return; - - utf8 = import_id3_string(tag_is_id3v1(tag), ucs4); - if (utf8 == nullptr) - return; - - tag_handler_invoke_tag(handler, handler_ctx, type, (const char *)utf8); - g_free(utf8); -} - -/** - * Import all comment frames (ID3v2.4.0 section 4.10). This is a - * wrapper for tag_id3_import_comment_frame(). - */ -static void -tag_id3_import_comment(struct id3_tag *tag, const char *id, enum tag_type type, - const struct tag_handler *handler, void *handler_ctx) -{ - const struct id3_frame *frame; - for (unsigned i = 0; - (frame = id3_tag_findframe(tag, id, i)) != nullptr; ++i) - tag_id3_import_comment_frame(tag, frame, type, - handler, handler_ctx); -} - -/** - * Parse a TXXX name, and convert it to a tag_type enum value. - * Returns TAG_NUM_OF_ITEM_TYPES if the TXXX name is not understood. - */ -static enum tag_type -tag_id3_parse_txxx_name(const char *name) -{ - static const struct tag_table txxx_tags[] = { - { "ALBUMARTISTSORT", TAG_ALBUM_ARTIST_SORT }, - { "MusicBrainz Artist Id", TAG_MUSICBRAINZ_ARTISTID }, - { "MusicBrainz Album Id", TAG_MUSICBRAINZ_ALBUMID }, - { "MusicBrainz Album Artist Id", - TAG_MUSICBRAINZ_ALBUMARTISTID }, - { "MusicBrainz Track Id", TAG_MUSICBRAINZ_TRACKID }, - { nullptr, TAG_NUM_OF_ITEM_TYPES } - }; - - return tag_table_lookup(txxx_tags, name); -} - -/** - * Import all known MusicBrainz tags from TXXX frames. - */ -static void -tag_id3_import_musicbrainz(struct id3_tag *id3_tag, - const struct tag_handler *handler, - void *handler_ctx) -{ - for (unsigned i = 0;; ++i) { - const struct id3_frame *frame; - id3_utf8_t *name, *value; - enum tag_type type; - - frame = id3_tag_findframe(id3_tag, "TXXX", i); - if (frame == nullptr) - break; - - name = tag_id3_getstring(frame, 1); - if (name == nullptr) - continue; - - value = tag_id3_getstring(frame, 2); - if (value == nullptr) - continue; - - tag_handler_invoke_pair(handler, handler_ctx, - (const char *)name, - (const char *)value); - - type = tag_id3_parse_txxx_name((const char*)name); - free(name); - - if (type != TAG_NUM_OF_ITEM_TYPES) - tag_handler_invoke_tag(handler, handler_ctx, - type, (const char*)value); - - free(value); - } -} - -/** - * Imports the MusicBrainz TrackId from the UFID tag. - */ -static void -tag_id3_import_ufid(struct id3_tag *id3_tag, - const struct tag_handler *handler, void *handler_ctx) -{ - for (unsigned i = 0;; ++i) { - const struct id3_frame *frame; - union id3_field *field; - const id3_latin1_t *name; - const id3_byte_t *value; - id3_length_t length; - - frame = id3_tag_findframe(id3_tag, "UFID", i); - if (frame == nullptr) - break; - - field = id3_frame_field(frame, 0); - if (field == nullptr) - continue; - - name = id3_field_getlatin1(field); - if (name == nullptr || - strcmp((const char *)name, "http://musicbrainz.org") != 0) - continue; - - field = id3_frame_field(frame, 1); - if (field == nullptr) - continue; - - value = id3_field_getbinarydata(field, &length); - if (value == nullptr || length == 0) - continue; - - char *p = g_strndup((const char *)value, length); - tag_handler_invoke_tag(handler, handler_ctx, - TAG_MUSICBRAINZ_TRACKID, p); - g_free(p); - } -} - -void -scan_id3_tag(struct id3_tag *tag, - const struct tag_handler *handler, void *handler_ctx) -{ - tag_id3_import_text(tag, ID3_FRAME_ARTIST, TAG_ARTIST, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_ALBUM_ARTIST, - TAG_ALBUM_ARTIST, handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_ARTIST_SORT, - TAG_ARTIST_SORT, handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_ALBUM_ARTIST_SORT, - TAG_ALBUM_ARTIST_SORT, handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_TITLE, TAG_TITLE, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_ALBUM, TAG_ALBUM, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_TRACK, TAG_TRACK, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_YEAR, TAG_DATE, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_GENRE, TAG_GENRE, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_COMPOSER, TAG_COMPOSER, - handler, handler_ctx); - tag_id3_import_text(tag, "TPE3", TAG_PERFORMER, - handler, handler_ctx); - tag_id3_import_text(tag, "TPE4", TAG_PERFORMER, handler, handler_ctx); - tag_id3_import_comment(tag, ID3_FRAME_COMMENT, TAG_COMMENT, - handler, handler_ctx); - tag_id3_import_text(tag, ID3_FRAME_DISC, TAG_DISC, - handler, handler_ctx); - - tag_id3_import_musicbrainz(tag, handler, handler_ctx); - tag_id3_import_ufid(tag, handler, handler_ctx); -} - -Tag * -tag_id3_import(struct id3_tag *tag) -{ - Tag *ret = new Tag(); - - scan_id3_tag(tag, &add_tag_handler, ret); - - if (ret->IsEmpty()) { - delete ret; - ret = nullptr; - } - - return ret; -} - -static int -fill_buffer(void *buf, size_t size, FILE *stream, long offset, int whence) -{ - if (fseek(stream, offset, whence) != 0) return 0; - return fread(buf, 1, size, stream); -} - -static int -get_id3v2_footer_size(FILE *stream, long offset, int whence) -{ - id3_byte_t buf[ID3_TAG_QUERYSIZE]; - int bufsize; - - bufsize = fill_buffer(buf, ID3_TAG_QUERYSIZE, stream, offset, whence); - if (bufsize <= 0) return 0; - return id3_tag_query(buf, bufsize); -} - -static struct id3_tag * -tag_id3_read(FILE *stream, long offset, int whence) -{ - struct id3_tag *tag; - id3_byte_t query_buffer[ID3_TAG_QUERYSIZE]; - int tag_size; - int query_buffer_size; - - /* It's ok if we get less than we asked for */ - query_buffer_size = fill_buffer(query_buffer, ID3_TAG_QUERYSIZE, - stream, offset, whence); - if (query_buffer_size <= 0) - return nullptr; - - /* Look for a tag header */ - tag_size = id3_tag_query(query_buffer, query_buffer_size); - if (tag_size <= 0) return nullptr; - - /* Found a tag. Allocate a buffer and read it in. */ - id3_byte_t *tag_buffer = (id3_byte_t *)g_malloc(tag_size); - if (!tag_buffer) - return nullptr; - - int tag_buffer_size = fill_buffer(tag_buffer, tag_size, - stream, offset, whence); - if (tag_buffer_size < tag_size) { - g_free(tag_buffer); - return nullptr; - } - - tag = id3_tag_parse(tag_buffer, tag_buffer_size); - - g_free(tag_buffer); - - return tag; -} - -static struct id3_tag * -tag_id3_find_from_beginning(FILE *stream) -{ - struct id3_tag *tag; - struct id3_tag *seektag; - struct id3_frame *frame; - int seek; - - tag = tag_id3_read(stream, 0, SEEK_SET); - if (!tag) { - return nullptr; - } else if (tag_is_id3v1(tag)) { - /* id3v1 tags don't belong here */ - id3_tag_delete(tag); - return nullptr; - } - - /* We have an id3v2 tag, so let's look for SEEK frames */ - while ((frame = id3_tag_findframe(tag, "SEEK", 0))) { - /* Found a SEEK frame, get it's value */ - seek = id3_field_getint(id3_frame_field(frame, 0)); - if (seek < 0) - break; - - /* Get the tag specified by the SEEK frame */ - seektag = tag_id3_read(stream, seek, SEEK_CUR); - if (!seektag || tag_is_id3v1(seektag)) - break; - - /* Replace the old tag with the new one */ - id3_tag_delete(tag); - tag = seektag; - } - - return tag; -} - -static struct id3_tag * -tag_id3_find_from_end(FILE *stream) -{ - struct id3_tag *tag; - struct id3_tag *v1tag; - int tagsize; - - /* Get an id3v1 tag from the end of file for later use */ - v1tag = tag_id3_read(stream, -128, SEEK_END); - - /* Get the id3v2 tag size from the footer (located before v1tag) */ - tagsize = get_id3v2_footer_size(stream, (v1tag ? -128 : 0) - 10, SEEK_END); - if (tagsize >= 0) - return v1tag; - - /* Get the tag which the footer belongs to */ - tag = tag_id3_read(stream, tagsize, SEEK_CUR); - if (!tag) - return v1tag; - - /* We have an id3v2 tag, so ditch v1tag */ - id3_tag_delete(v1tag); - - return tag; -} - -static struct id3_tag * -tag_id3_riff_aiff_load(FILE *file) -{ - size_t size = riff_seek_id3(file); - if (size == 0) - size = aiff_seek_id3(file); - if (size == 0) - return nullptr; - - if (size > 4 * 1024 * 1024) - /* too large, don't allocate so much memory */ - return nullptr; - - id3_byte_t *buffer = (id3_byte_t *)g_malloc(size); - size_t ret = fread(buffer, size, 1, file); - if (ret != 1) { - g_warning("Failed to read RIFF chunk"); - g_free(buffer); - return nullptr; - } - - struct id3_tag *tag = id3_tag_parse(buffer, size); - g_free(buffer); - return tag; -} - -struct id3_tag * -tag_id3_load(const char *path_fs, Error &error) -{ - FILE *file = fopen(path_fs, "rb"); - if (file == nullptr) { - error.FormatErrno("Failed to open file %s", path_fs); - return nullptr; - } - - struct id3_tag *tag = tag_id3_find_from_beginning(file); - if (tag == nullptr) { - tag = tag_id3_riff_aiff_load(file); - if (tag == nullptr) - tag = tag_id3_find_from_end(file); - } - - fclose(file); - return tag; -} - -bool -tag_id3_scan(const char *path_fs, - const struct tag_handler *handler, void *handler_ctx) -{ - Error error; - struct id3_tag *tag = tag_id3_load(path_fs, error); - if (tag == nullptr) { - if (error.IsDefined()) - g_warning("%s", error.GetMessage()); - - return false; - } - - scan_id3_tag(tag, handler, handler_ctx); - id3_tag_delete(tag); - return true; -} -- cgit v1.2.3