diff options
author | Justin Ruggles <justin.ruggles@gmail.com> | 2009-02-28 20:24:46 +0300 |
---|---|---|
committer | Justin Ruggles <justin.ruggles@gmail.com> | 2009-02-28 20:24:46 +0300 |
commit | 81f052cb7dc3f6c6b8192436dbbaff6d1f2bf676 (patch) | |
tree | b6d38d98a70db4b69b10cc5947cbe41e66a3d355 | |
parent | 2d243fb3fc9bd39787c5f91268e375931c50eb22 (diff) |
Separate the raw FLAC demuxer from raw.c and put in a new file,
flacdec.c.
Originally committed as revision 17660 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r-- | MAINTAINERS | 1 | ||||
-rw-r--r-- | libavformat/Makefile | 2 | ||||
-rw-r--r-- | libavformat/flacdec.c | 72 | ||||
-rw-r--r-- | libavformat/raw.c | 75 | ||||
-rw-r--r-- | libavformat/raw.h | 2 |
5 files changed, 94 insertions, 58 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 0d109c1a13..70d3de2bee 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -247,6 +247,7 @@ Muxers/Demuxers: dv.c Roman Shaposhnik dxa.c Kostya Shishkov ffm* Baptiste Coudurier + flac* Justin Ruggles flic.c Mike Melanson flvdec.c, flvenc.c Michael Niedermayer gxf.c Reimar Doeffinger diff --git a/libavformat/Makefile b/libavformat/Makefile index bf55b670d7..b01fbbfeac 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -53,7 +53,7 @@ OBJS-$(CONFIG_EAC3_DEMUXER) += raw.o id3v2.o OBJS-$(CONFIG_EAC3_MUXER) += raw.o OBJS-$(CONFIG_FFM_DEMUXER) += ffmdec.o OBJS-$(CONFIG_FFM_MUXER) += ffmenc.o -OBJS-$(CONFIG_FLAC_DEMUXER) += raw.o id3v2.o +OBJS-$(CONFIG_FLAC_DEMUXER) += flacdec.o raw.o id3v2.o OBJS-$(CONFIG_FLAC_MUXER) += flacenc.o OBJS-$(CONFIG_FLIC_DEMUXER) += flic.o OBJS-$(CONFIG_FLV_DEMUXER) += flvdec.o diff --git a/libavformat/flacdec.c b/libavformat/flacdec.c new file mode 100644 index 0000000000..94d916a728 --- /dev/null +++ b/libavformat/flacdec.c @@ -0,0 +1,72 @@ +/* + * Raw FLAC demuxer + * Copyright (c) 2001 Fabrice Bellard + * + * 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 "avformat.h" +#include "raw.h" +#include "id3v2.h" + +static int flac_read_header(AVFormatContext *s, + AVFormatParameters *ap) +{ + uint8_t buf[ID3v2_HEADER_SIZE]; + int ret; + AVStream *st = av_new_stream(s, 0); + if (!st) + return AVERROR(ENOMEM); + st->codec->codec_type = CODEC_TYPE_AUDIO; + st->codec->codec_id = CODEC_ID_FLAC; + st->need_parsing = AVSTREAM_PARSE_FULL; + /* the parameters will be extracted from the compressed bitstream */ + + /* skip ID3v2 header if found */ + ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE); + if (ret == ID3v2_HEADER_SIZE && ff_id3v2_match(buf)) { + int len = ff_id3v2_tag_len(buf); + url_fseek(s->pb, len - ID3v2_HEADER_SIZE, SEEK_CUR); + } else { + url_fseek(s->pb, 0, SEEK_SET); + } + return 0; +} + +static int flac_probe(AVProbeData *p) +{ + uint8_t *bufptr = p->buf; + uint8_t *end = p->buf + p->buf_size; + + if(ff_id3v2_match(bufptr)) + bufptr += ff_id3v2_tag_len(bufptr); + + if(bufptr > end-4 || memcmp(bufptr, "fLaC", 4)) return 0; + else return AVPROBE_SCORE_MAX/2; +} + +AVInputFormat flac_demuxer = { + "flac", + NULL_IF_CONFIG_SMALL("raw FLAC"), + 0, + flac_probe, + flac_read_header, + ff_raw_read_partial_packet, + .flags= AVFMT_GENERIC_INDEX, + .extensions = "flac", + .value = CODEC_ID_FLAC, +}; diff --git a/libavformat/raw.c b/libavformat/raw.c index 273c3ec4e1..5f66b07aa4 100644 --- a/libavformat/raw.c +++ b/libavformat/raw.c @@ -130,7 +130,7 @@ static int raw_read_packet(AVFormatContext *s, AVPacket *pkt) return ret; } -static int raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt) +int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt) { int ret, size; @@ -258,17 +258,6 @@ static int audio_read_header(AVFormatContext *s, st->need_parsing = AVSTREAM_PARSE_FULL; /* the parameters will be extracted from the compressed bitstream */ - if(st->codec->codec_id == CODEC_ID_FLAC) { - /* skip ID3v2 header if found */ - uint8_t buf[ID3v2_HEADER_SIZE]; - int ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE); - if (ret == ID3v2_HEADER_SIZE && ff_id3v2_match(buf)) { - int len = ff_id3v2_tag_len(buf); - url_fseek(s->pb, len - ID3v2_HEADER_SIZE, SEEK_CUR); - } else { - url_fseek(s->pb, 0, SEEK_SET); - } - } return 0; } @@ -593,20 +582,6 @@ static int eac3_probe(AVProbeData *p) } #endif -#if CONFIG_FLAC_DEMUXER -static int flac_probe(AVProbeData *p) -{ - uint8_t *bufptr = p->buf; - uint8_t *end = p->buf + p->buf_size; - - if(ff_id3v2_match(bufptr)) - bufptr += ff_id3v2_tag_len(bufptr); - - if(bufptr > end-4 || memcmp(bufptr, "fLaC", 4)) return 0; - else return AVPROBE_SCORE_MAX/2; -} -#endif - #if CONFIG_AAC_DEMUXER static int adts_aac_probe(AVProbeData *p) { @@ -655,7 +630,7 @@ AVInputFormat aac_demuxer = { 0, adts_aac_probe, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "aac", .value = CODEC_ID_AAC, @@ -669,7 +644,7 @@ AVInputFormat ac3_demuxer = { 0, ac3_probe, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "ac3", .value = CODEC_ID_AC3, @@ -698,7 +673,7 @@ AVInputFormat dirac_demuxer = { 0, dirac_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .value = CODEC_ID_DIRAC, }; @@ -726,7 +701,7 @@ AVInputFormat dnxhd_demuxer = { 0, dnxhd_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .value = CODEC_ID_DNXHD, }; @@ -754,7 +729,7 @@ AVInputFormat dts_demuxer = { 0, dts_probe, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "dts", .value = CODEC_ID_DTS, @@ -783,7 +758,7 @@ AVInputFormat eac3_demuxer = { 0, eac3_probe, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "eac3", .value = CODEC_ID_EAC3, @@ -805,20 +780,6 @@ AVOutputFormat eac3_muxer = { }; #endif -#if CONFIG_FLAC_DEMUXER -AVInputFormat flac_demuxer = { - "flac", - NULL_IF_CONFIG_SMALL("raw FLAC"), - 0, - flac_probe, - audio_read_header, - raw_read_partial_packet, - .flags= AVFMT_GENERIC_INDEX, - .extensions = "flac", - .value = CODEC_ID_FLAC, -}; -#endif - #if CONFIG_GSM_DEMUXER AVInputFormat gsm_demuxer = { "gsm", @@ -826,7 +787,7 @@ AVInputFormat gsm_demuxer = { 0, NULL, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "gsm", .value = CODEC_ID_GSM, @@ -840,7 +801,7 @@ AVInputFormat h261_demuxer = { 0, h261_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "h261", .value = CODEC_ID_H261, @@ -869,7 +830,7 @@ AVInputFormat h263_demuxer = { 0, h263_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, // .extensions = "h263", //FIXME remove after writing mpeg4_probe .value = CODEC_ID_H263, @@ -898,7 +859,7 @@ AVInputFormat h264_demuxer = { 0, h264_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "h26l,h264,264", //FIXME remove after writing mpeg4_probe .value = CODEC_ID_H264, @@ -941,7 +902,7 @@ AVInputFormat m4v_demuxer = { 0, mpeg4video_probe, /** probing for MPEG-4 data */ video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "m4v", .value = CODEC_ID_MPEG4, @@ -970,7 +931,7 @@ AVInputFormat mjpeg_demuxer = { 0, NULL, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "mjpg,mjpeg", .value = CODEC_ID_MJPEG, @@ -999,7 +960,7 @@ AVInputFormat mlp_demuxer = { 0, NULL, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "mlp", .value = CODEC_ID_MLP, @@ -1043,7 +1004,7 @@ AVInputFormat mpegvideo_demuxer = { 0, mpegvideo_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .value = CODEC_ID_MPEG1VIDEO, }; @@ -1056,7 +1017,7 @@ AVInputFormat cavsvideo_demuxer = { 0, cavsvideo_probe, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .value = CODEC_ID_CAVS, }; @@ -1132,7 +1093,7 @@ AVInputFormat shorten_demuxer = { 0, NULL, audio_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .flags= AVFMT_GENERIC_INDEX, .extensions = "shn", .value = CODEC_ID_SHORTEN, @@ -1146,7 +1107,7 @@ AVInputFormat vc1_demuxer = { 0, NULL /* vc1_probe */, video_read_header, - raw_read_partial_packet, + ff_raw_read_partial_packet, .extensions = "vc1", .value = CODEC_ID_VC1, }; diff --git a/libavformat/raw.h b/libavformat/raw.h index ce3e45c932..497c8be644 100644 --- a/libavformat/raw.h +++ b/libavformat/raw.h @@ -27,4 +27,6 @@ int pcm_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags); +int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt); + #endif /* AVFORMAT_RAW_H */ |