On Thu, 29 Jan 2015 01:38:31 +0000 Kieran Kunhya <kier...@obe.tv> wrote:
> > this context, that means that they make the following, questionable, > > assumptions: > > erm > > > 1) If the input dimensions are 720x480 or 720x576, assume the > > content has an active area of 704x480 or 704x576. > > 702x576 That may be what bt.601 says (I haven't read it, I don't know), but the 45/44 scale factor that they apply is certainly from 720/704. And I've seen 704 mentioned as the active width in may discussions. But that's neither here nor there - they do a 45/44 adjustment. --phil _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
