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avformat/mux: Add avoid_negative_ts_use_pts

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This allows using pts instead of dts for negative TS avoidance

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-05 12:44:20 +02:00
parent 36993527dd
commit 7ac5c38ec5
2 changed files with 26 additions and 12 deletions
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2
libavformat/internal.h
View File

@ -97,6 +97,8 @@ struct AVFormatInternal {
AVRational offset_timebase;
int inject_global_side_data;
int avoid_negative_ts_use_pts;
};
#ifdef __GNUC__

18
libavformat/mux.c
View File

@ -557,10 +557,11 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
if (s->avoid_negative_ts > 0) {
AVStream *st = s->streams[pkt->stream_index];
int64_t offset = st->mux_ts_offset;
int64_t ts = s->internal->avoid_negative_ts_use_pts ? pkt->pts : pkt->dts;
if (s->internal->offset == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE &&
(pkt->dts < 0 || s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)) {
s->internal->offset = -pkt->dts;
if (s->internal->offset == AV_NOPTS_VALUE && ts != AV_NOPTS_VALUE &&
(ts < 0 || s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)) {
s->internal->offset = -ts;
s->internal->offset_timebase = st->time_base;
}
@ -577,6 +578,16 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
if (pkt->pts != AV_NOPTS_VALUE)
pkt->pts += offset;
if (s->internal->avoid_negative_ts_use_pts) {
if (pkt->pts != AV_NOPTS_VALUE && pkt->pts < 0) {
av_log(s, AV_LOG_WARNING, "failed to avoid negative "
"pts %s in stream %d.\n"
"Try -avoid_negative_ts 1 as a possible workaround.\n",
av_ts2str(pkt->dts),
pkt->stream_index
);
}
} else {
av_assert2(pkt->dts == AV_NOPTS_VALUE || pkt->dts >= 0 || s->max_interleave_delta > 0);
if (pkt->dts != AV_NOPTS_VALUE && pkt->dts < 0) {
av_log(s, AV_LOG_WARNING,
@ -588,6 +599,7 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
);
}
}
}
did_split = av_packet_split_side_data(pkt);
if ((pkt->flags & AV_PKT_FLAG_UNCODED_FRAME)) {