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Originally committed as revision 7530 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Diego Biurrun 2007-01-15 05:46:42 +00:00
parent 0d80bd2f56
commit 16ab894ecb
1 changed files with 9 additions and 10 deletions
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doc/faq.texi
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@ -195,22 +195,21 @@ 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 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 @end table
@section Which are good parameters for encoding high quality MPEG4? @section Which are good parameters for encoding high quality MPEG-4?
-mbd rd -flags +4mv+trell+aic -cmp 2 -subcmp 2 -g 300 -pass 1/2 '-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 things to try: '-bf 2', '-flags qprd', '-flags mv0', '-flags skiprd'.
@section Which are good parameters for encoding high quality MPEG1/MPEG2? @section Which are good parameters for encoding high quality MPEG-1/MPEG-2?
-mbd rd -flags +trell -cmp 2 -subcmp 2 -g 100 -pass 1/2 '-mbd rd -flags +trell -cmp 2 -subcmp 2 -g 100 -pass 1/2'
but beware the -g 100 might cause problems with some decoders but beware the '-g 100' might cause problems with some decoders.
things to try: -bf 2, -flags qprd, -flags mv0, -flags skiprd Things to try: '-bf 2', '-flags qprd', '-flags mv0', '-flags skiprd.
@section Interlaced video looks very bad when encoded with ffmpeg, whats wrong? @section Interlaced video looks very bad when encoded with ffmpeg, whats wrong?
You should use -flags +ilme+ildct and maybe -flags +alt for interlaced You should use '-flags +ilme+ildct' and maybe '-flags +alt' for interlaced
material, and try -top 0/1 if the result looks really trashed material, and try '-top 0/1' if the result looks really messed-up.
@section How can I read DirectShow files? @section How can I read DirectShow files?