[FFmpeg-devel] [PATCH 2/4] lavfi: timeline support.

Clément Bœsch ubitux at gmail.com
Wed Apr 17 11:44:02 CEST 2013

On Wed, Apr 17, 2013 at 11:28:10AM +0200, Nicolas George wrote:
> Le sextidi 26 germinal, an CCXXI, Clement Boesch a écrit :
> > Flag added in a few simple filters. A bunch of other filters can likely
> > use the feature as well.
> I am sorry I must say I have doubts about the feature, especially since it
> requires some amount of code in various places of the framework. Do you have
> more interesting use cases than the ones in the examples?

Any color correction filter you want to apply to a small portion of a
video, denoising just a particular crappy scene, locate a face on a video
and draw a box around it on a particular section, efficient de-banding but
only on the sky scene because it fucked up the rest of the video and is
slower for no reason, postprocess a video except where the part of the
movie is a screen recording and need be kept as such, etc etc etc.

> I have had for some time the project of an "edl" filter that would connect
> its various inputs and outputs according to a pre-established script, it
> seems it would enable more or less the same effects without touching the
> framework.

The changes to the framework are very light IMO given the benefit of such

Clément B.
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