[FFmpeg-user] For discussion: A better video notation.

[Jim DeLaHunt]

On 2021-02-04 15:50, Mark Filipak (ffmpeg) wrote:

> For discussion: A better video notation.
>
> 24PPS at 23.9FPS         (aka "24p") Cinema (i.e. 24PPS) mastered at 
> 23.9FPS, 0.1% slow.
> 24PPS at 23.9FPS         (aka "30i") Soft-telecined: cinema with 29.9FPS 
> metadata, 0.1% slow.

The notation codes for these two examples look identical to me.

Perhaps the second one should have been "30PPS at 29.9FPS"?

Also, I'll point out that that this notation seems to have an 
obfuscation of its own, when it says "23.9". Does that actually mean 
"24/1.001"? It would be nice if the notation said that, so that we could 
distinguish it from the number, "239/10".

Best regards,
      —Jim DeLaHunt