[FFmpeg-user] Decimal times to frame numbers

[Gyan Doshi]

On 2021-08-21 03:05 pm, Nicolas George wrote:
>
> - By adding -r on your output and by using a format like MP4 that only
>    supports constant frame rate, you are forcing ffmpeg to duplicate or

A nit, but MP4 is inherently VFR-ready - that's what the (mandatory) 
stts box is for.

It is for some opaque reason that the muxer defaults to CFR, possibly to 
do with some limitation or bug in the early days.

Regards,
Gyan