On Sun, Apr 17, 2016 at 8:55 PM, Reimar Döffinger <reimar.doeffin...@gmx.de> wrote: > On Sun, Apr 17, 2016 at 09:41:32PM +0300, Jan Ekstrom wrote: >> On Sun, Apr 17, 2016 at 9:21 PM, Reimar Döffinger >> <reimar.doeffin...@gmx.de> wrote: >> > In particular, I have an uncomfortable suspicion that >> > PGS might be designed to match the movie's colour space, >> > in which case neither variant would give correct results >> > but instead it would have to depend on what format the >> > corresponding video track uses (and it probably would >> > be more than just the 255/224 factor that would differ). >> >> Yes, the YCbCr values in palettes are matched accordingly against the >> video stream. As per the specification: >> "Y, Cr and Cb shall have the same color matrix as the associated HDMV >> Video stream: 525-60/625-50 (Rec.601); 1080i, 720p (ITU-709)" >> >> Otherwise the specification notes that valid values in palettes are: >> -Y: 16-235 >> -Cr: 16-240 >> -Cb: 16-240 > > ?!??? > These two kind of contradict each other, at least if the HDMV video > stream uses a full range color matrix (or is that not allowed?).
No, Blu-rays are limited range, as is basically all consumer content. Full-range is practically not used in the real world outside of people recording their desktops. - Hendrik _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
