On 4/7/20, Vittorio Giovara <vittorio.giov...@gmail.com> wrote: > On Sat, Dec 22, 2018 at 3:18 PM Paul B Mahol <one...@gmail.com> wrote: > >> On 12/22/18, Steinar H. Gunderson <steinar+ffm...@gunderson.no> wrote: >> > 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.) >> >> Unacceptable, I'm not adding another yuv420p variant. >> > > Agreed, no need for another pixel format variant, but maybe you could just > leave the buffer as is and tag the color transfer with > AVCOL_TRC_IEC61966_2_1?
Hmm, you sure that thing is exactly same what photocd uses? Is there a way to check it, in way that there is tool that converts that one to 709? > -- > Vittorio > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".