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movenc: Update a comment to reflect how the code actually behaves

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This codepath isn't quite as bad as it used to sound, if fragments
are cut automatically at video packets.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2016-04-19 14:07:25 +03:00
parent 79fdbfdb3e
commit 0abb07bad7
1 changed files with 2 additions and 1 deletions
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3
libavformat/movenc.c
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@ -3495,7 +3495,8 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
/* We also may have written the pts and the corresponding duration
* in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
* the next fragment. This means the cts of the first sample must
* be the same in all fragments. */
* be the same in all fragments, unless end_pts was updated by
* the packet causing the fragment to be written. */
if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
mov->mode == MODE_ISM)
pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;