Because when you're watching a video, you aren't pausing it and looking at each frame--you're watching a video. And when watching a video, you won't notice artifacts as much in high-motion scenes.
If you're freeze-framing to compare things, qcomp 1 should be optimal.
Also, the original choice of value (inherited, AFAIK, from ffmpeg's original ratecontrol) maximized PSNR on a selection of clips.
Last edited by Dark Shikari; 24th May 2009 at 19:36.
|