On 2024-03-03 16:11, Mark Filipak wrote:
On 03/03/2024 18.33, Jim DeLaHunt wrote:
Regarding the Streams illustration
<https://markfilipak.github.io/Video-Object-Notation/Streams.html>:
The macroblock to slice to picdata transition is clear. Showing 45
macroblocks in a horizontal slice works. Good work.
... It is hard to count out 45 from single-digit numbers. 00..44
would be much clearer.
I agree, and I would have "0..44" if I could. If I used 2-digit
numbers, I'd have to almost double the table width. The issue is that
FireFox doesn't support 'font-size' style, so making the font smaller
to fit can't be done.
Hence, elide some of the table, and use ellipses.
The complete list of 0..29 slices is visually overwhelming, and not
necessary. I think you could keep slices 0..2, elide slices 3..27
with a vertical ellipsis, and keep slices 28..29. That would get the
slice structure across.
I'm going for visual impact, too. Do you find what I have confusing?
Confusing, yes, and overwhelming, and not necessary.
The slice structure lacks a comment with size, of the sort you
included for macroblock and picdata. The full slice structure does
not leave any room for such a comment.
Well, I felt that with all 30 slices and all 1350 macroblocks
explicitly shown, comments were superfluous. They will get looked at
one time, then ignored for the rest of time.
The diagram implied, but did not say, that one slice contains the full
pixel width of the frame. I had to count to 45 macroblocks in a slice
(difficult, because part of the macroblock index was left out), and
multiply by 16, to get to 720. A comment could just explicitly state
this information. That would have been clearer to me.
—Jim DeLaHunt
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