[FFmpeg-user] mpeg4 encoder using qscale to set open VBR seems broken?
Arne.Lie at sintef.no
Wed Dec 4 11:27:47 CET 2013
Earlier versions of ffmpeg could manage static Q-scale values to produce pure open loop VBR content, even with the mv4 motion vector estimation enabled. Current version seems to have this option broken, or must be initialized differently? My YUV content is encoded the following way:
ffmpeg -s cif -r 29.97 -i video.yuv -vcodec mpeg4 -flags mv4 -flags2 sgop -g 12 -qscale 4 -s 352x288 -r 29.97 -y video_Q4.m4v
If I do not use mv4 motion estimation, then, static Q scale is used! But, I want to use mv4! How can I obtain this, or is this a known issue?
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