[MEncoder-users] x264 encoding slower after updating libx264

[belcampo]

Loren Merritt wrote:
> On Sat, 14 Nov 2009, Dâniel Fraga wrote:
>> On Sat, 14 Nov 2009, Loren Merritt wrote:
>>
>>> MB-tree is enabled by default now, didn't exist in api67, and takes a
>>> bunch of memory.
>>> B-frames and multiref are enabled by default now, weren't in api67, and
>>> take some memory and cpu-time.
>>> RDO, trellis, and several other options are enabled by default
>>> now, weren't in api67, and take cpu-time.
>>> All of the above also affect filesize.
>>
>>     And all of these options result in better quality? Because I
>> didn't notice any improvement in the quality... of course I'm just
>> looking at the video (I didn't do any scientific comparison).
> 
> All of these options result in better compression ratio. That can be 
> either better quality or lower bitrate, depending on what ratecontrol 
> mode you choose.
So if I understand correct, given a constant quality, it would result in 
a smaller file ?
> 
> --Loren Merritt
> 
> 
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