[FFmpeg-user] Glossary: DAR, PAR, and SAR

[Jim DeLaHunt]

On 2020-09-30 15:08, Jim DeLaHunt wrote:
> On 2020-09-30 13:09, Mark Filipak (ffmpeg) wrote:
>> SAR [noun]:…
>>   [2] A standardized set of picture sizes & aspects has been
>>       established:
>>                  display     DAR     picture     PAR    SAR = DAR/PAR
>>     16:9-2160: 3840 x 2160  16:9 : 3840 x 2160  16:9 : 1:1
>>      4:3-2160: 2880 x 2160   4:3 : 2880 x 2160   4:3 : 1:1
>>     16:9-1080: 1920 x 1080  16:9 : 1920 x 1080  16:9 : 1:1
>>      4:3-1080: 1440 x 1080   4:3 : 1440 x 1080   4:3 : 1:1
>>      16:9-576: 1024 x 576   16:9 :  720 x 576    5:4 : 64:45
>>       4:3-576:  768 x 576    4:3 :  720 x 576    5:4 : 16:15
>>      16:9-480:  853 x 480   16:9 :  720 x 480    3:2 : 32:27
>>       4:3-480:  640 x 480    4:3 :  720 x 480    3:2 : 8:9  [3] 
>
> The formatting of the email garbles the table [2] enough that I can't 
> be sure what I'm reading. Maybe insert printable delimiters into each 
> line?


Hmm. When formatted with a fixed-pitch font, this table is legible.

I mostly withdraw my comment. The table is displayed with a fixed-width 
font as a I receive it from the ffmpeg-user list, both your (Mark F's) 
original message and my reply.  My email client turns it into a 
variable-width font when I quote it in my reply.

Printable delimiters would still be a help for when the table gets 
displayed with variable-width fonts, but the tradeoff is more in favour 
of relying on fixed-width font instead.

      —Jim DeLaHunt