mirror of https://git.ffmpeg.org/ffmpeg.git
movenc: fix crashes if a stream is empty.
For some reason this always happens with -f ismv. See trac issue #996. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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@ -287,6 +287,8 @@ static unsigned compute_avg_bitrate(MOVTrack *track)
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{
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{
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uint64_t size = 0;
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uint64_t size = 0;
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int i;
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int i;
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if (!track->track_duration)
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return 0;
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for (i = 0; i < track->entry; i++)
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for (i = 0; i < track->entry; i++)
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size += track->cluster[i].size;
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size += track->cluster[i].size;
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return size * 8 * track->timescale / track->track_duration;
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return size * 8 * track->timescale / track->track_duration;
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@ -2052,7 +2054,8 @@ static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
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mov->tracks[i].time = mov->time;
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mov->tracks[i].time = mov->time;
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mov->tracks[i].track_id = i+1;
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mov->tracks[i].track_id = i+1;
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build_chunks(&mov->tracks[i]);
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if (mov->tracks[i].entry)
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build_chunks(&mov->tracks[i]);
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}
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}
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if (mov->chapter_track)
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if (mov->chapter_track)
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