[FFmpeg-devel] [PATCH]lavd/decklink_dec: Do not claim to output transparency information

[Matthias Hunstock]

Am 02.10.2017 um 18:34 schrieb Marton Balint:
> Yeah, you can capture both at the same time, and one signal might be
> key, other might be fill, but as far as I know the driver will not
> merge these two signals behind the scenes to one single input with an
> alpha channel. 


Is there a video filter for splitting RGBA->key/fill or joining key/fill
-> RGBA? Then an example in the docs would be helpful, though I'm not
sure if the two streams will be perfectly synchronized.


Matthias