On Sat, 20 Feb 2010 19:27:03 JST achu...@achurch.org (Andrew Church) wrote:
> * Otherwise, use CRF mode. The value N in the "crf=N" parameter seems > to correspond roughly to the average quantization level (QP); in my > tests, I generally got a QP of crf-1.5 in I-frames and crf+1.5 in > P-frames, with B-frames somewhat higher. There are probably better > references elsewhere on the web, but my rough (and again totally > unscientific) feeling is: > - crf=20: high quality (if you're familiar with videotapes, think > "SP mode") > - crf=25: good quality ("LP mode") > - crf=30: fair quality, low bitrate ("EP mode") Thanks, but could you provide the correct syntax to export to h264 (-y ffmpeg -F h264)? No matter what option I use, it will always complain ffmpeg uses broken settings for x264. What options and settings exactly do you use? Thank you! -- Linux 2.6.32: Man-Eating Seals of Antiquity