[MEncoder-users] Strange things when encoding with libx264: B frames, threads

[Etienne Buira]

Hello.

I have troubles when encoding with libx264.

I use mencoder SVN-r29766, and libx264 git
39f6499e3abcf473bdcbade38aba9a7490470e6a (both updated at the same
time).

When using a command line not specifying "bframes=0" in -x264encopts, B
frames are generated, despite the man page says that default bframes
value is 0.
However, if I specify "bframes=0", no bframes are generated. What's
wrong? My cmdline? man page? bug?

Also, without specifying "threads=1" (like manpage says it is the
default), mencoder process uses more than 300% CPU (quad core). I have
the same questions about this issue.

My typical command line is 'mencoder -o dest.avi -hr-edl-seek -edl
edl-file -oac faac -faacopts br=128 -ovc x264 -x264encopts
frameref=7:direct_pred=auto:partitions=all:8x8dct:me=umh:subq=7:mixed_refs:trellis=2:crf=21
source.ts'

Regards.