[FFmpeg-devel] [PATCH] avfilter/extractplanes: add support for 12-bit YUVA formats

[Gyan]

On 19-01-2019 06:21 PM, Carl Eugen Hoyos wrote:
>
>> At present, 16-bit auto-scaled format results in incorrect alpha
>> extraction.
> Does that mean that there is an unreported bug in the colour
> space conversion?
Forcing a manual conversion to the same output format as the auto-scaler 
avoids the error, so looks like a config error rather than the 
conversion itself

I don't have time to trace it at present. Only wanted to get the 
immediate use-case fixed.

Thanks,
Gyan