diff options
Diffstat (limited to 'ffmpeg/libavformat/oggparseflac.c')
| -rw-r--r-- | ffmpeg/libavformat/oggparseflac.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/ffmpeg/libavformat/oggparseflac.c b/ffmpeg/libavformat/oggparseflac.c deleted file mode 100644 index f69533f..0000000 --- a/ffmpeg/libavformat/oggparseflac.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * Copyright (C) 2005 Matthieu CASTET - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdlib.h> -#include "libavcodec/get_bits.h" -#include "libavcodec/flac.h" -#include "avformat.h" -#include "internal.h" -#include "oggdec.h" - -#define OGG_FLAC_METADATA_TYPE_STREAMINFO 0x7F - -static int -flac_header (AVFormatContext * s, int idx) -{ - struct ogg *ogg = s->priv_data; - struct ogg_stream *os = ogg->streams + idx; - AVStream *st = s->streams[idx]; - GetBitContext gb; - FLACStreaminfo si; - int mdt; - - if (os->buf[os->pstart] == 0xff) - return 0; - - init_get_bits(&gb, os->buf + os->pstart, os->psize*8); - skip_bits1(&gb); /* metadata_last */ - mdt = get_bits(&gb, 7); - - if (mdt == OGG_FLAC_METADATA_TYPE_STREAMINFO) { - uint8_t *streaminfo_start = os->buf + os->pstart + 5 + 4 + 4 + 4; - skip_bits_long(&gb, 4*8); /* "FLAC" */ - if(get_bits(&gb, 8) != 1) /* unsupported major version */ - return -1; - skip_bits_long(&gb, 8 + 16); /* minor version + header count */ - skip_bits_long(&gb, 4*8); /* "fLaC" */ - - /* METADATA_BLOCK_HEADER */ - if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE) - return -1; - - avpriv_flac_parse_streaminfo(st->codec, &si, streaminfo_start); - - st->codec->codec_type = AVMEDIA_TYPE_AUDIO; - st->codec->codec_id = AV_CODEC_ID_FLAC; - st->need_parsing = AVSTREAM_PARSE_HEADERS; - - if (ff_alloc_extradata(st->codec, FLAC_STREAMINFO_SIZE) < 0) - return AVERROR(ENOMEM); - memcpy(st->codec->extradata, streaminfo_start, st->codec->extradata_size); - - avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); - } else if (mdt == FLAC_METADATA_TYPE_VORBIS_COMMENT) { - ff_vorbis_comment (s, &st->metadata, os->buf + os->pstart + 4, os->psize - 4); - } - - return 1; -} - -static int -old_flac_header (AVFormatContext * s, int idx) -{ - struct ogg *ogg = s->priv_data; - AVStream *st = s->streams[idx]; - struct ogg_stream *os = ogg->streams + idx; - AVCodecParserContext *parser = av_parser_init(AV_CODEC_ID_FLAC); - int size; - uint8_t *data; - - if (!parser) - return -1; - - st->codec->codec_type = AVMEDIA_TYPE_AUDIO; - st->codec->codec_id = AV_CODEC_ID_FLAC; - - parser->flags = PARSER_FLAG_COMPLETE_FRAMES; - av_parser_parse2(parser, st->codec, - &data, &size, os->buf + os->pstart, os->psize, - AV_NOPTS_VALUE, AV_NOPTS_VALUE, -1); - - av_parser_close(parser); - - if (st->codec->sample_rate) { - avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); - return 0; - } - - return 1; -} - -const struct ogg_codec ff_flac_codec = { - .magic = "\177FLAC", - .magicsize = 5, - .header = flac_header, - .nb_header = 2, -}; - -const struct ogg_codec ff_old_flac_codec = { - .magic = "fLaC", - .magicsize = 4, - .header = old_flac_header, - .nb_header = 0, -}; |
