[mythtv-users] mencoder, x264, and myth

[Yan Seiner]

Julian Edwards wrote:
> On Saturday 09 January 2010 17:51:22 Yan Seiner wrote:
>   
>>>    Here's my x264 options. The bitrate I use is 1500.
>>>
>>> X264_PASS1="-ovc x264 -x264encopts
>>> subq=4:bframes=4:b_pyramid:weight_b:pass=1:psnr:bitrate=$BITRATE:turbo=1"
>>> X264_PASS2="-ovc x264 -x264encopts
>>> subq=5:partitions=4x4:8x8dct:frameref=3:me=hex:bframes=4:b_pyramid:pass=2
>>> :psnr:bitrate=$BITRATE"
>>>       
>> Thanks!  That at least seems to work - almost.  For some reason, the
>> b_pyramid causes mine to fail, but it's running without it.  I also
>> added threads-auto as I have a dual core system.
>>     
>
>
> Here's what I use which produces excellent results:
>
> -x264encopts 
> pass=1:crf=22:frameref=2:bframes=3:b_pyramid:weight_b:subq=5:turbo=1:threads=0 
>
> -x264encopts 
> pass=2:qp=22:frameref=4:bframes=3:b_adapt:b_pyramid:weight_b:8x8dct:me=umh:subme=7:subq=6:chroma_me:mixed_refs:trellis=1:nofast_pskip:direct_pred=auto:threads=0 
>
> The options changed on the ffmpeg library at some point - I suspect you might 
> have an old release if b_pyramid fails to work.
>   
Interesting... I'm using a very recent mplayer.... I wonder if it's 
pulling in an old ffmpeg.  It builds its own.

MEncoder SVN-r30253-4.3.3 (C) 2000-2009 MPlayer Team



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