[FFmpeg-devel] [PATCH] cuvid: Always calculate second field PTS from frame rate

wm4 nfxjfg at googlemail.com
Thu Feb 9 08:49:36 EET 2017


On Wed, 8 Feb 2017 23:31:54 +0100
Miroslav SlugeĊˆ <thunder.m at email.cz> wrote:

> It is much more robust solution to always calculate second field (when 
> deinterlacing) PTS from frame rate, then relating on previous PTS, 
> because if there are B frames in input and some video frames are 
> corrupted (dropped) it will calculate wrong PTS for second field and 
> could hang on encoding in do_video_out.
> 
> 

Seems more like it'd make it less robust, because many files don't have
a useful framerate set.

I'm not sure why encoding is hanging (?), but that sounds like a
different problem.

Also, such reasoning should go into the commit message, instead of just
the mail.


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