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| -rw-r--r-- | doc/faq.texi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/faq.texi b/doc/faq.texi index 9f1e8ec2d3..0c21422776 100644 --- a/doc/faq.texi +++ b/doc/faq.texi @@ -195,6 +195,23 @@ CAVLC ffmpeg -i input -acodec aac -ab 128 -vcodec h264 -b 1200kb -ar 48000 -mbd 2 -coder 1 -cmp 2 -subcmp 2 -s 368x192 -r 30000/1001 -title X -f psp -flags loop -trellis 2 -partitions parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 output.mp4 @end table +@section Which are good parameters for encoding high quality MPEG4? + +-mbd rd -flags +4mv+trell+aic -cmp 2 -subcmp 2 -g 300 -pass 1/2 +things to try: -bf 2, -flags qprd, -flags mv0, -flags skiprd + +@section Which are good parameters for encoding high quality MPEG1/MPEG2? + +-mbd rd -flags +trell -cmp 2 -subcmp 2 -g 100 -pass 1/2 +but beware the -g 100 might cause problems with some decoders +things to try: -bf 2, -flags qprd, -flags mv0, -flags skiprd + +@section Interlaced video looks very bad when encoded with ffmpeg, whats wrong? + +You should use -flags +ilme+ildct and maybe -flags +alt for interlaced +material, and try -top 0/1 if the result looks really trashed + + @section How can I read DirectShow files? If you have built FFmpeg with @code{./configure --enable-avisynth} |