[FFmpeg-devel] [PATCH]Add a 4444 profile to a prores encoder

Derek Buitenhuis derek.buitenhuis at gmail.com
Thu Sep 13 19:08:29 CEST 2012

On 13/09/2012 10:57 AM, Robert Krüger wrote:
> Of course but since we know ffmpeg doesn't write the alpha information
> into the file (at least that's my understanding but that could be
> verified by directly transcoding a PNG with alpha to prores, which I
> haven't done yet), the only remaining thing to check is whether chroma
> subsampling looks ok when Quicktime decodes the file. At least that is
> how I understood Carl.

Sorry, I thought you were referring to the 4444 profile.

- Derek

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