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avformat: Add a flag to mark muxers that allow (non strict) monotone timestamps.

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Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
pull/30/merge
James Zern 14 years ago committed by Justin Ruggles
parent 5d603f1b65
commit e9cef89702
11 changed files with 26 additions and 10 deletions
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  1. 4
      doc/APIchanges
  2. 6
      libavformat/avformat.h
  3. 3
      libavformat/flvenc.c
  4. 2
      libavformat/framecrcenc.c
  5. 8
      libavformat/matroskaenc.c
  6. 2
      libavformat/md5enc.c
  7. 2
      libavformat/smjpegenc.c
  8. 2
      libavformat/swfenc.c
  9. 4
      libavformat/utils.c
  10. 2
      libavformat/version.h
  11. 1
      libavformat/wav.c

4
doc/APIchanges
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@ -13,6 +13,10 @@ libavutil: 2011-04-18
API changes, most recent first:
2012-05-xx - xxxxxxx - lavf 54.3.0
Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
non-increasing monotone timestamps.
2012-05-15 - lavfi 2.17.0
Add support for audio filters
ac71230/a2cd9be - add video/audio buffer sink in a new installed

6
libavformat/avformat.h
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@ -351,6 +351,9 @@ typedef struct AVProbeData {
#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */
#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */
#define AVFMT_ALLOW_FLUSH 0x10000 /**< Format allows flushing. If not set, the muxer will not receive a NULL packet in the write_packet function. */
#define AVFMT_TS_NONSTRICT 0x20000 /**< Format does not require strictly
increasing timestamps, but they must
still be monotonic */
/**
* @addtogroup lavf_encoding
@ -373,7 +376,8 @@ typedef struct AVOutputFormat {
/**
* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE,
* AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS,
* AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH
* AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH,
* AVFMT_TS_NONSTRICT
*/
int flags;

3
libavformat/flvenc.c
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@ -488,5 +488,6 @@ AVOutputFormat ff_flv_muxer = {
.codec_tag = (const AVCodecTag* const []){
flv_video_codec_ids, flv_audio_codec_ids, 0
},
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
AVFMT_TS_NONSTRICT,
};

2
libavformat/framecrcenc.c
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@ -43,5 +43,5 @@ AVOutputFormat ff_framecrc_muxer = {
.video_codec = CODEC_ID_RAWVIDEO,
.write_header = ff_framehash_write_header,
.write_packet = framecrc_write_packet,
.flags = AVFMT_VARIABLE_FPS,
.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT,
};

8
libavformat/matroskaenc.c
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@ -1305,7 +1305,8 @@ AVOutputFormat ff_matroska_muxer = {
.write_header = mkv_write_header,
.write_packet = mkv_write_packet,
.write_trailer = mkv_write_trailer,
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag* const []){
ff_codec_bmp_tags, ff_codec_wav_tags, 0
},
@ -1326,7 +1327,8 @@ AVOutputFormat ff_webm_muxer = {
.write_header = mkv_write_header,
.write_packet = mkv_write_packet,
.write_trailer = mkv_write_trailer,
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
AVFMT_TS_NONSTRICT,
};
#endif
@ -1346,7 +1348,7 @@ AVOutputFormat ff_matroska_audio_muxer = {
.write_header = mkv_write_header,
.write_packet = mkv_write_packet,
.write_trailer = mkv_write_trailer,
.flags = AVFMT_GLOBALHEADER,
.flags = AVFMT_GLOBALHEADER | AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
};
#endif

2
libavformat/md5enc.c
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@ -106,6 +106,6 @@ AVOutputFormat ff_framemd5_muxer = {
.video_codec = CODEC_ID_RAWVIDEO,
.write_header = ff_framehash_write_header,
.write_packet = framemd5_write_packet,
.flags = AVFMT_VARIABLE_FPS,
.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT,
};
#endif

2
libavformat/smjpegenc.c
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@ -144,6 +144,6 @@ AVOutputFormat ff_smjpeg_muxer = {
.write_header = smjpeg_write_header,
.write_packet = smjpeg_write_packet,
.write_trailer = smjpeg_write_trailer,
.flags = AVFMT_GLOBALHEADER,
.flags = AVFMT_GLOBALHEADER | AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag *const []){ ff_codec_smjpeg_video_tags, ff_codec_smjpeg_audio_tags, 0 },
};

2
libavformat/swfenc.c
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@ -513,6 +513,7 @@ AVOutputFormat ff_swf_muxer = {
.write_header = swf_write_header,
.write_packet = swf_write_packet,
.write_trailer = swf_write_trailer,
.flags = AVFMT_TS_NONSTRICT,
};
#endif
#if CONFIG_AVM2_MUXER
@ -526,5 +527,6 @@ AVOutputFormat ff_avm2_muxer = {
.write_header = swf_write_header,
.write_packet = swf_write_packet,
.write_trailer = swf_write_trailer,
.flags = AVFMT_TS_NONSTRICT,
};
#endif

4
libavformat/utils.c
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@ -2962,7 +2962,9 @@ static int compute_pkt_fields2(AVFormatContext *s, AVStream *st, AVPacket *pkt){
pkt->dts= st->pts_buffer[0];
}
if(st->cur_dts && st->cur_dts != AV_NOPTS_VALUE && st->cur_dts >= pkt->dts){
if (st->cur_dts && st->cur_dts != AV_NOPTS_VALUE &&
((!(s->oformat->flags & AVFMT_TS_NONSTRICT) &&
st->cur_dts >= pkt->dts) || st->cur_dts > pkt->dts)) {
av_log(s, AV_LOG_ERROR,
"Application provided invalid, non monotonically increasing dts to muxer in stream %d: %"PRId64" >= %"PRId64"\n",
st->index, st->cur_dts, pkt->dts);

2
libavformat/version.h
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@ -30,7 +30,7 @@
#include "libavutil/avutil.h"
#define LIBAVFORMAT_VERSION_MAJOR 54
#define LIBAVFORMAT_VERSION_MINOR 2
#define LIBAVFORMAT_VERSION_MINOR 3
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \

1
libavformat/wav.c
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@ -216,6 +216,7 @@ AVOutputFormat ff_wav_muxer = {
.write_header = wav_write_header,
.write_packet = wav_write_packet,
.write_trailer = wav_write_trailer,
.flags = AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
.priv_class = &wav_muxer_class,
};

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