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Flag to ignore dts on frames that contain pts.

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This works around common issues with mpeg-ps files with broken timestamps.
Also allows playing the broken sample from issue1024.

Originally committed as revision 21562 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2010-01-30 22:55:12 +00:00
parent 6299a22904
commit c55806e3a2
3 changed files with 5 additions and 0 deletions
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1
libavformat/avformat.h
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@@ -604,6 +604,7 @@ typedef struct AVFormatContext {
#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames.
#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index.
#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input.
#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS
int loop_input;
/** decoding: size of data to probe; encoding: unused. */

1
libavformat/options.c
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@@ -46,6 +46,7 @@ static const AVOption options[]={
{"fflags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, D|E, "fflags"},
{"ignidx", "ignore index", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNIDX, INT_MIN, INT_MAX, D, "fflags"},
{"genpts", "generate pts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_GENPTS, INT_MIN, INT_MAX, D, "fflags"},
{"igndts", "ingore dts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNDTS, INT_MIN, INT_MAX, D, "fflags"},
#if LIBAVFORMAT_VERSION_INT < (53<<16)
{"track", " set the track number", OFFSET(track), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E},
{"year", "set the year", OFFSET(year), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, E},

3
libavformat/utils.c
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@@ -808,6 +808,9 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
int num, den, presentation_delayed, delay, i;
int64_t offset;
if((s->flags & AVFMT_FLAG_IGNDTS) && pkt->pts != AV_NOPTS_VALUE)
pkt->dts= AV_NOPTS_VALUE;
if (st->codec->codec_id != CODEC_ID_H264 && pc && pc->pict_type == FF_B_TYPE)
//FIXME Set low_delay = 0 when has_b_frames = 1
st->codec->has_b_frames = 1;