[FFmpeg-devel] [PATCH v3] avfilter/vf_fps: fix duration

Nicolas George george at nsup.org
Sun Apr 2 14:16:19 EEST 2017

Le tridi 13 germinal, an CCXXV, Thomas Mundt a écrit :
> I found the use of this function in f_loop.c, so I thought it´s ok.

Well, it is a bug. I missed it when it was first committed.

> link->current_pts always returns the pts until the current (last) frame.
> I can calculate its duration for cfr video, but not for vfr. I need the pts until the virtual next frame.
> At which point in the code can I get it?

link->current_pts is updated when request_frame() returns EOF. But to
make it work, it would be necessary that the application injects the
timestamp when marking EOF, which is not yet done, but hopefully I will
have time to work on it in the next two weeks.

But it is the correct way of doing things. Using the duration has too
many drawbacks.


  Nicolas George
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