Re: [FFmpeg-user] Why does changing Y4M frame rate cause a 4x larger encoded H264 size?

2019-02-22 Thread Moses DeJong
> >> What might be going on here and how could I get ffmpeg or x264 to get the >> higher compression results seen with 30 or 60 FPS in the Y4m header but with >> the low frame rate settings in the header? The frame rate defined in the M4V >> output header controls playback rate and I am not abl

[FFmpeg-user] Why does changing Y4M frame rate cause a 4x larger encoded H264 size?

2019-02-21 Thread Moses DeJong
Hello all I recently ran into a very strange result while encoding video with ffmpeg+x264 on a MacOSX 10.14.2 machine: I have a piece of software that converts a series of PNG images to .y4m for use as input to ffmpeg and x264. I built ffmpeg from source: ffmpeg -version ffmpeg version 4.1 Co