On 10/01/2020 01:03 PM, Jim DeLaHunt wrote:
On 2020-10-01 06:27, Mark Filipak (ffmpeg) wrote:
On 09/30/2020 11:56 PM, Jim DeLaHunt wrote:
On 2020-09-30 20:36, Mark Filipak (ffmpeg) wrote:
Continuing with relatively non controversial entries:
d-NTSC [noun]: 1, The digital equivalent of NTSC distinguished by
binary metadata:
720 samples/row: 'horizontal_size_value' = 0010 1101 0000
'horizontal_size_extension' = 00
480 rows: 'vertical_size_value' = 0001 1110 0000
'vertical_size_extension' = 00
4:3 DAR: 'aspect_ratio_information' = 0010
30/1.001 FPS: 'frame_rate_code' = 0100
'progressive_sequence' = 0 & 'progressive_frame' = 0
d-PAL [noun]: 1, The digital equivalent of PAL distinguished by binary
metadata:
720 samples/row: 'horizontal_size_value' = 0010 1101 0000
'horizontal_size_extension' = 00
576 rows: 'vertical_size_value' = 0010 0100 0000
'vertical_size_extension' = 00
4:3 DAR: 'aspect_ratio_information' = 0010
25 FPS: 'frame_rate_code' = 0011
'progressive_sequence' = 0 & 'progressive_frame' = 0
It seems to me that these are no longer glossary entries — or, only the first line of each is a
glossary entry. ...
…The sentence is a statement followed by a list of metadata that distinguishes
the subject...
Do you have any suggestions? Should I just forget this glossary idea?
What makes sense to me is a glossary which includes the entries:
d-NTSC [noun]: 1, The digital equivalent of NTSC
d-PAL [noun]: 1, The digital equivalent of PAL
Then a table of XYZ metadata entries which have been found in the wild:
Actually, not in the wild. They are from H.262.
[Display the following table with fixed-width font]
Actually, Jim, what you sent is not in fixed-width font. :-)
So, you favor a formal table? I don't, but I guess that could go without
saying, eh?
I format in plain text at 148 columns. I've found 70 columns to be too restricting and promotes
crypticism (...is there such a word?). Personally, I don't think formal tables are needed, but if
you do, then I'll make a formal table. But first, take a look at the current version, attached.
--
What if you woke up and found yourself in a police state?
African-Americans wake up in a police state every day.
d-NTSC [noun]: The digital equivalent of NTSC. d-NTSC is distinguished via
MPEG-PS binary metadata:
'progressive_sequence' = 0 + 'progressive_frame' = 0
...is a scan frame
'aspect_ratio_information' = 0010 + 'frame_rate_code' =
0100 ...4:3 DAR + 30/1.001 FPS
'horizontal_size_value' = 0010 1101 0000 + 'horizontal_size_extension' =
00 ...720 samples/row
'vertical_size_value' = 0001 1110 0000 + 'vertical_size_extension' =
00 ...480 rows
d-PAL [noun]: The digital equivalent of PAL. d-PAL is distinguished via MPEG-PS
binary metadata:
'progressive_sequence' = 0 + 'progressive_frame' = 0
...is a scan frame
'aspect_ratio_information' = 0010 + 'frame_rate_code' =
0011 ...4:3 DAR + 25 FPS
'horizontal_size_value' = 0010 1101 0000 + 'horizontal_size_extension' =
00 ...720 samples/row
'vertical_size_value' = 0010 0100 0000 + 'vertical_size_extension' =
00 ...576 rows
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