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estimate_timings_from_pts: Try to get the duration for all streams 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Gaullier Nicolas 2014-05-14 16:25:13 +00:00 committed by Michael Niedermayer
parent 424599c7cc
commit 68cea1bc8e
1 changed files with 15 additions and 4 deletions
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19
libavformat/utils.c
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@ -2469,7 +2469,7 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
AVPacket pkt1, *pkt = &pkt1;
AVStream *st;
int read_size, i, ret;
int64_t end_time;
int all_duration_valid = 0;
int64_t filesize, offset, duration;
int retry = 0;
@ -2493,7 +2493,6 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
/* estimate the end time (duration) */
/* XXX: may need to support wrapping */
filesize = ic->pb ? avio_size(ic->pb) : 0;
end_time = AV_NOPTS_VALUE;
do {
offset = filesize - (DURATION_MAX_READ_SIZE << retry);
if (offset < 0)
@ -2515,7 +2514,7 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
if (pkt->pts != AV_NOPTS_VALUE &&
(st->start_time != AV_NOPTS_VALUE ||
st->first_dts != AV_NOPTS_VALUE)) {
duration = end_time = pkt->pts + pkt->duration;
duration = pkt->pts + pkt->duration;
if (st->start_time != AV_NOPTS_VALUE)
duration -= st->start_time;
else
@ -2529,7 +2528,19 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
}
av_free_packet(pkt);
}
} while (end_time == AV_NOPTS_VALUE &&
/* check if all audio/video streams have valid duration */
all_duration_valid = 1;
for (i = 0; i < ic->nb_streams; i++) {
st = ic->streams[i];
switch (st->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
case AVMEDIA_TYPE_AUDIO:
if (st->duration == AV_NOPTS_VALUE)
all_duration_valid = 0;
}
}
} while (!all_duration_valid &&
offset &&
++retry <= DURATION_MAX_RETRY);