I am using ffmpeg to convert any avi/wmv videos to flv.
My trouble is that the flv result is quite poor: it gives me big pixelitaed boxes. I tried to use some -b parameters with no good results:
ffmpeg -i 1268459654.wmv -ar 22050 -ab 32 -f flv -s 640x480 x.flv ffmpeg -i 1268459654.wmv -ar 22050 -ab 32 -f flv -s 640x480 -b 500k x.f4v
I also tried ffmpeg -i 1268459654.wmv -vcodec libx264 -s 360x240 x.mp4
ans got: "Unknown encoder 'libx264'"
Any solution for that ?
libx264 does not come pre-installed (licensing issues I believe) if you've downloaded it via yum/RPM. You'll need to download the source and compile it yourself and specify libx264. Here's a command line I've used in the past with decent results, and I would consider the MP4 Container over the dated, FLV format personally.
ffmpeg -i (file) -acodec libfaac -ab 44k -vcodec libx264 -vpre normal -crf 30 -threads 0
Make note of the "-vpre normal", as you should have some presets available under: /usr/share/ffmpeg/libx264-normal.ffpreset or similar.
