Reimar Döffinger <[EMAIL PROTECTED]> added the comment:

> AVPacket.duration specifies the packet duration. If after reordering the pts +
> duration doesnt match the next pts, that is a discontinuity and should be
> treated as such. If the duration isnt known then the discontinuity detection
> should likely be disabled. Subtitle streams are NOT a special case. Your patch
> intruduces bugs (that is ignore discontinuities in subtitle streams) but does
> not fix any.

Well, subtitles are in sofar special as timestamp discontinuities are
completely normal and happen all the time since they are only coded
sparsely. Or are the demuxers supposed to fill the "holes" with empty
subtitle packages?

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FFmpeg issue tracker <[EMAIL PROTECTED]>
<https://roundup.mplayerhq.hu/roundup/ffmpeg/issue356>
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