[FFmpeg-devel] [PATCH 1/2] avcodec: add photocd decoder

Steinar H. Gunderson steinar+ffmpeg at gunderson.no
Sat Dec 22 22:14:00 EET 2018

On Sat, Dec 22, 2018 at 09:04:26PM +0100, Paul B Mahol wrote:
> I can not accept internal conversion to RGB. This is subsampled format
> after all.

Well, it's not Y'CbCr, so if so, you'd need to add a new AVPixelFormat value
(e.g. AV_PIX_FMT_YCC420P). I'm not sure what applications would do with it
except convert it to RGB, though. (You can't convert subsampled YCC to
subsampled Y'CbCr without upsampling, converting and then subsampling again,
which is obviously lossy.)

/* Steinar */
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