[FFmpeg-user] Question about 2 pass encoding

[Laine Lee]

> On Apr 1, 2024, at 9:35 AM, Aditya Dandavate <adityadandavate04 at gmail.com> wrote:
> 
> But according to H.264 guide :
> 
> Warning: When using option -an, you may eventually get a segfault or a
> broken file. If so, remove option -an and replace by -vsync cfr to the
> first pass.
> 
> When I put `vsync cfr` then it says that `-vsync` is deprecated, use
> `-fps_mode`
> 
> What is all this happening ?

I’ve found that using “-fps_mode cfr” appears to serve as an adequate replacement for the “vsync” call in recent versions of ffmpeg (to keep it from complaining).

Sincerely,
L. Lee