[FFmpeg-devel] [PATCH] ProRes: Fixes for ProRes encode, particularly 4:4:4

[Kieran Kunhya]

On Tue, Feb 28, 2012 at 12:46 PM, Phil Barrett <philb at filmlight.ltd.uk> wrote:
> The attached patch updates proresenc_kostya.c as follows:
>
> 1. Fixes chroma block ordering for 4:4:4
> 2. Fixes sample duplication at right and bottom when image isn't a multiple
> of 16x16 (e.g. at bottom of HD 1920x1080 frame)
> 3. Fixes plane_factor calculation for 4:4:4 chroma planes
> 4. Adds a "4444" profile (min_quant and max_quant may still be wrong though,
> verification welcome)
> 5. Sets the colour primaries, transfer function and matrix from the context
> options into the ProRes header
>
> Remaining issues with ProRes 4444 are:
> 1. needs to accept YUVA data, and encode the alpha channel
> 2. needs to accept 16-bit input data, since ProRes 4:4:4 encodes 12-bit data
>
> Phil
> --
> Phil Barrett
> FilmLight

You should probably send this to libav-devel at libav.org so kostya can respond.