diff options
author | Max Kellermann <max@duempel.org> | 2013-07-28 12:20:50 +0200 |
---|---|---|
committer | Max Kellermann <max@duempel.org> | 2013-07-28 12:20:50 +0200 |
commit | 352d7f477eaf8a6a8536feb059a32a8b61ccb9ca (patch) | |
tree | d9deb8a4accbb5c087d1d59e473f3e5a9fce268c /src/decoder/dsdlib.c | |
parent | 1fcf35ad3b10c241b8b5266c46a5fe99ce2c57d9 (diff) | |
download | mpd-352d7f477eaf8a6a8536feb059a32a8b61ccb9ca.tar.gz mpd-352d7f477eaf8a6a8536feb059a32a8b61ccb9ca.tar.xz mpd-352d7f477eaf8a6a8536feb059a32a8b61ccb9ca.zip |
decoder/{dsf,dsdiff}: convert to C++
Diffstat (limited to 'src/decoder/dsdlib.c')
-rw-r--r-- | src/decoder/dsdlib.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/src/decoder/dsdlib.c b/src/decoder/dsdlib.c deleted file mode 100644 index d3043fb05..000000000 --- a/src/decoder/dsdlib.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Copyright (C) 2012 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. - */ - -/* \file - * - * This file contains functions used by the DSF and DSDIFF decoders. - * - */ - -#include "config.h" -#include "dsf_decoder_plugin.h" -#include "decoder_api.h" -#include "util/bit_reverse.h" -#include "tag_handler.h" -#include "tag_id3.h" -#include "dsdlib.h" -#include "dsdiff_decoder_plugin.h" - -#include <unistd.h> -#include <stdio.h> /* for SEEK_SET, SEEK_CUR */ - -#ifdef HAVE_ID3TAG -#include <id3tag.h> -#endif - -bool -dsdlib_id_equals(const struct dsdlib_id *id, const char *s) -{ - assert(id != NULL); - assert(s != NULL); - assert(strlen(s) == sizeof(id->value)); - - return memcmp(id->value, s, sizeof(id->value)) == 0; -} - -bool -dsdlib_read(struct decoder *decoder, struct input_stream *is, - void *data, size_t length) -{ - size_t nbytes = decoder_read(decoder, is, data, length); - return nbytes == length; -} - -/** - * Skip the #input_stream to the specified offset. - */ -bool -dsdlib_skip_to(struct decoder *decoder, struct input_stream *is, - goffset offset) -{ - if (input_stream_is_seekable(is)) - return input_stream_seek(is, offset, SEEK_SET, NULL); - - if (input_stream_get_offset(is) > offset) - return false; - - char buffer[8192]; - while (input_stream_get_offset(is) < offset) { - size_t length = sizeof(buffer); - if (offset - input_stream_get_offset(is) < (goffset)length) - length = offset - input_stream_get_offset(is); - - size_t nbytes = decoder_read(decoder, is, buffer, length); - if (nbytes == 0) - return false; - } - - assert(input_stream_get_offset(is) == offset); - return true; -} - -/** - * Skip some bytes from the #input_stream. - */ -bool -dsdlib_skip(struct decoder *decoder, struct input_stream *is, - goffset delta) -{ - assert(delta >= 0); - - if (delta == 0) - return true; - - if (input_stream_is_seekable(is)) - return input_stream_seek(is, delta, SEEK_CUR, NULL); - - char buffer[8192]; - while (delta > 0) { - size_t length = sizeof(buffer); - if ((goffset)length > delta) - length = delta; - - size_t nbytes = decoder_read(decoder, is, buffer, length); - if (nbytes == 0) - return false; - - delta -= nbytes; - } - - return true; -} - -/** - * Add tags from ID3 tag. All tags commonly found in the ID3 tags of - * DSF and DSDIFF files are imported - */ - -#ifdef HAVE_ID3TAG -void -dsdlib_tag_id3(struct input_stream *is, - const struct tag_handler *handler, - void *handler_ctx, goffset tagoffset) -{ - assert(tagoffset >= 0); - - if (tagoffset == 0) - return; - - if (!dsdlib_skip_to(NULL, is, tagoffset)) - return; - - struct id3_tag *id3_tag = NULL; - id3_length_t count; - - /* Prevent broken files causing problems */ - const goffset size = input_stream_get_size(is); - const goffset offset = input_stream_get_offset(is); - if (offset >= size) - return; - - count = size - offset; - - /* Check and limit id3 tag size to prevent a stack overflow */ - if (count == 0 || count > 4096) - return; - - id3_byte_t dsdid3[count]; - id3_byte_t *dsdid3data; - dsdid3data = dsdid3; - - if (!dsdlib_read(NULL, is, dsdid3data, count)) - return; - - id3_tag = id3_tag_parse(dsdid3data, count); - if (id3_tag == NULL) - return; - - scan_id3_tag(id3_tag, handler, handler_ctx); - - id3_tag_delete(id3_tag); - - return; -} -#endif |