[FFmpeg-devel] [PATCH 1/2] lavfi/video: ensure that filter_frame is called.

Nicolas George nicolas.george at normalesup.org
Thu Dec 27 00:57:02 CET 2012

Le septidi 7 nivôse, an CCXXI, Clément Bœsch a écrit :
> Which one are missing? I thought we ported them all…

buffersink only comes as patch 2/2, so technically at this point it is still

The real problem is the that the temporary implementation of ff_filter_frame
still calls ff_start_frame/ff_draw_slice/ff_end_frame, and non-trivial code
is present in ff_start_frame that needs to be moved.

I believe the correct path for that kind of transition is:

1. make the framework work with both the old and the new API;
2. port all filters to the new API;
3. simplify the framework by dropping support for the old API.

As far as I understand things, 1 was incomplete, but it become apparent only
when 2 neared completion. This patch completes it, hopefully.


  Nicolas George
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