On 18/07/2025 14.37, Jim DeLaHunt wrote: > On 2025-07-18 07:47, Mark Filipak wrote: > >> ...I want to give >> folks the opportunity to correct what I've written and to make >> additions.... > > OK, I'll bite. > > In trying to follow along with this thread, i have had two difficulties: > > 1. not explaining the notation. > > It's great that your message of Fri, 18 Jul 2025 10:47:01 -0400 has a > Key. That is a good start to explaining notation. But note that the > first symbol you use is "¤", which is not in your Key.
Good point. Thanks, Jim. I added that as an afterthought. I'll add it to the key. > Also, you use terms like 4:2:2 and 4:1:1, without citing which notation > system you are using. I think there's only one notation system. <Y_width>:<Cb_width>:<Cr_width> with the caveat that a width of zero means that the particular 'plane' doesn't exist in the pixel data. > 2. limiting yourself to character graphics. You make a valid point, but pixels lend themselves to character graphics (what some people call "texipix"). Pixels and monospace characters are both quantized and uniformly spaced. And there's no concern with how things are rendered. > Now I am not an expert, so maybe my difficulties won't apply between you > and Poynton. But this is my addition. > > Best regards, > —Jim DeLaHunt Thanks! --Mark. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
