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avformat/mov: Handle when we have an mfra box but have not read the full sidx for a fragment 

Use the tfra timestamp if it is available and sidx timestamp is not.

Fixes reading the entire file after seeking in a live-style DASH FMP4
with an MFRA.

This specifically fixes when use_mfra_for is set.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Derek Buitenhuis 2021-03-15 14:20:17 +00:00
parent 434b626b7a
commit 8f1580c31a
1 changed files with 4 additions and 0 deletions
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4
libavformat/mov.c
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@ -1279,6 +1279,10 @@ static int64_t get_frag_time(MOVFragmentIndex *frag_index,
if (track_id >= 0) {
frag_stream_info = get_frag_stream_info(frag_index, index, track_id);
if (frag_stream_info->sidx_pts != AV_NOPTS_VALUE)
return frag_stream_info->sidx_pts;
if (frag_stream_info->first_tfra_pts != AV_NOPTS_VALUE)
return frag_stream_info->first_tfra_pts;
return frag_stream_info->sidx_pts;
}