Re: [FFmpeg-user] Use force_key_frames to obtain keyframes at exactly the same positions as in the input stream?

On Saturday, May 02, 2015 06:00:32 PM Haris Zukanovic wrote:

My case is live streaming. I have tried it and definitely keyframes are not aligned between input and output streams. For all encoded output streams it is very simple to obtain alignement with setting the fixed GOP size. But the PTS and keyframes of input are never aligned with that.

I’ve had success with it as long as I encode all the derivative streams at once from the same encoder process. This of course can consume significant CPU resources.