Hello Karma, Curious why do you so much want to use coreavc codec ? If it needs wine to run , its anyways not a great idea to use such codec on linux natively IMHO. Best Kapil <div class="gmail_quote"> On Fri, Jun 11, 2010 at 6:45 AM, shenyue <<a href="mailto:shenyue@magima.com.cn">shenyue@magima.com.cn</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi Kapil, Thanks for replying soon. I've finished my gst plugin using wine + coreavc + dshowserver. I just follow <a href="http://code.google.com/p/coreavc-for-linux/" target="_blank">http://code.google.com/p/coreavc-for-linux/</a>  , and port it's mplayer coreavc patch (vd_dshowserver.c) to gstreamer. It works, but everytime I start my H.264 decode through wine, it takes one more second to start, and whenever system bootup, it takes wine  5 more second to start my decoder, so I'm working on it. So far, I've not compared coreavc(especially with wine) with ffmpeg-mt and fluendo's H.264 decoder yet. Also, I haven't compare performance between coreavc+wine in linux and coreavc in windows, so I don't know whether there's a performance lost in wine. Best Regards, Karma <div class="im"> ----- Original Message ----- From: "Kapil Agrawal" <<a href="mailto:kapil.agl@gmail.com">kapil.agl@gmail.com</a>> To: "Discussion of the development of GStreamer" </div><div class="im"><<a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a>> </div><div class="im">Sent: Thursday, June 10, 2010 4:13 PM Subject: Re: [gst-devel] H.264 performance optimization,and gstreamer for coreavc </div><div><div></div><div class="h5">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 <<a href="mailto:shenyue@magima.com.cn">shenyue@magima.com.cn</a>> 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 > > > > 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。 > ========================================================== > > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit.  See the prize list and enter to win: > <a href="http://p.sf.net/sfu/thinkgeek-promo" target="_blank">http://p.sf.net/sfu/thinkgeek-promo</a> > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > -- <a href="http://www.mediamagictechnologies.com" target="_blank">www.mediamagictechnologies.com</a> (Gstreamer, ffmpeg, Red5, Streaming) twitter handle: @gst_kaps <a href="http://www.linkedin.com/in/kapilagrawal" target="_blank">http://www.linkedin.com/in/kapilagrawal</a> </div></div>-------------------------------------------------------------------------------- <div><div></div><div class="h5"> > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit.  See the prize list and enter to win: > <a href="http://p.sf.net/sfu/thinkgeek-promo" target="_blank">http://p.sf.net/sfu/thinkgeek-promo</a> -------------------------------------------------------------------------------- > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > 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。 ========================================================== ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit.  See the prize list and enter to win: <a href="http://p.sf.net/sfu/thinkgeek-promo" target="_blank">http://p.sf.net/sfu/thinkgeek-promo</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </div></div></blockquote></div> -- <a href="http://www.mediamagictechnologies.com">www.mediamagictechnologies.com</a> (Gstreamer, ffmpeg, Red5, Streaming) twitter handle: @gst_kaps <a href="http://www.linkedin.com/in/kapilagrawal">http://www.linkedin.com/in/kapilagrawal</a>