[FFmpeg-user] sntsc

Mark Filipak markfilipak.imdb at gmail.com
Fri Dec 22 23:15:24 EET 2023

Hi Devin,

On 12/22/23 15:14, Devin Heitmueller wrote:
> On Fri, Dec 22, 2023 at 2:38 PM Mark Filipak <markfilipak.imdb at gmail.com> wrote:
>> This page: https://ffmpeg.org/ffmpeg-utils.html
>> 'says' this:
>> "The following abbreviations are recognized:
>> "‘sntsc’
>> "    640x480"
>> What is it? I'm not aware that any such thing exists.
> It's NTSC with square pixels...

How do you go from 720x480 to 640x480 without throwing away 80 pixels per line?
Normally, 720x480 decodes to 720x540.

Correction: Actually, 720x480 decodes to 720x480. It SAR-scales to 720x540 for display. My apologies.

> (as opposed to the more common pixel
> aspect ratio of 10:11 found with 720x480).
> Devin

Umm... 10:11? What is that?

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