[gst-devel] H.264 performance optimization, and gstreamer for coreavc

[shenyue]

Thanks for reply so soon.

I've seldom posted in this maillist, so you really encourage me a lot.

I've not yet tried ffmpeg multithread version, and will try it recently.
Since you've compared ffmpeg multithread with Fluendo's H.264 decoder,
have you compared CoreCodec CoreAVC with Fluendo's H.264 decoder?
are they similar too?

Best regards,

Karma

----- Original Message ----- 
From: "Julien Moutte" <julien at moutte.net>
To: "Discussion of the development of GStreamer" 
<gstreamer-devel at lists.sourceforge.net>
Sent: Thursday, June 10, 2010 4:27 PM
Subject: Re: [gst-devel] H.264 performance optimization,and gstreamer for 
coreavc


> FFmpeg has multithread support I think. Are you sure you can no try to
> build ffmpeg and gst-ffmpeg correctly to get proper multithread
> support ?
>
> I have been comparing the ffmpeg multithread performance with
> Fluendo's H264 decoder and they are pretty similar using all the
> cores.
>
> Best regards,
>
> Julien Moutte,
> FLUENDO S.A.
>
>
>
> 2010/6/10 Kapil Agrawal <kapil.agl at gmail.com>:
>> One way might be to write you own codecs + gst plugin, optimized for 
>> multi
>> thread utilization.
>> Typically embedded platforms have such codecs desiged as per there 
>> specific
>> need.
>>
>> Best
>> -kapil
>>
>> On Wed, Jun 9, 2010 at 4:26 PM, shenyue <shenyue at magima.com.cn> wrote:
>>>
>>> Hi,
>>>
>>> I'm working on gstreamer to improve H.264 decode performance on 
>>> multi-cpu
>>> PC, ffmpeg's H.264 decode's performance seems not very good (can only 
>>> run
>>> on
>>> one cpu one hyperthread).
>>> According to mplayer's document, using wine+dshowserver+coreavc is one 
>>> way
>>> which can significantly improve H.264 decode performance, but I can't 
>>> find
>>> any gstreamer element/plugin using coreavc/dshowserver, So I'm writing
>>> one.
>>>
>>> So does anybody know whether there's such element (using
>>> coreavc+dshowserver, just like mplayer) or plan for such element?
>>> And is there any other way to improve H.264 decoding performance,
>>> including
>>> use multi-cpu or any other way?
>>>
>>> Thanks a lot.
>>>
>>> Karma
>>>
>>>
>>>
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>>
>>
>>
>> --
>> www.mediamagictechnologies.com (Gstreamer, ffmpeg, Red5, Streaming)
>> twitter handle: @gst_kaps
>> http://www.linkedin.com/in/kapilagrawal
>>
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搬迁通知： 2010年1月18日起，上海奇码数字信息有限公司迁至新址办公。
新地址为：上海张江祖冲之路887弄88号502室。
==========================================================