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some quick encoding tips

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feel free to extend, change, fix spelling and grammer and the formatting ...

Originally committed as revision 7400 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-01-02 01:19:58 +00:00
parent 09d8c0ae83
commit c62997a587
1 changed files with 17 additions and 0 deletions
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doc/faq.texi
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@ -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}