[FFmpeg-user] Glossary: d-NTSC & d-PAL

[Jim DeLaHunt]

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 rest seems to be a 
description of a data structure or representation. The entry doesn't say 
to what format or specification the representation applies. To an MPEG-2 
video? To a the ISO file corresponding to a DVD?

       —Jim DeLaHunt