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Re: [Opensvcdecoder-support] How to speed up decoding?
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From: Médéric B. <Med...@in...> - 2011-02-14 09:42:17
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Dear Siyuan, The Open SVC Decoder is still not compatible with MGS Control. You have to remove the MGSVectorMode option from your configuration files. I have noticed that you are using ratio different from 1.5 or 2 between two consecutives enhancement layer, which is not compatible with the SVC Baseline Profile. To be compatible with the Open SVC Decoder, you can use these size as example: 320x176, 640x 352, 1280x704. Kind regards, Médéric Le 14/02/2011 10:22, Siyuan Xiang a écrit : > Hi, Guys, > > I used JSVM 9.19.10(beta) Encoder to encode a video with mixed CGS/MGS > configuration. There are 3 resolutions 320x180, 640x360, 1280x720 > with total number of 8 layers. when I use opensvcdecoder to decode, an > error is prompted "A layer is using a different scan for residual > block" in SliceHeaderExtension.c:306. > > I use MGS setting in configure file as following: > > MGSVectorMode 1 # Write coefficients into > multiple slices > MGSVector0 8 # Number of coefficients that > are contained in slice 1 > MGSVector1 8 # Number of coefficients that > are contained in slice 2 > > Is there anything wrong with the configuration? > > > > profile & level info: > ===================== > DQ= 0: Main @ Level 1.2 > DQ= 1: Scalable High @ Level 1.3 320x180 > DQ= 2: Scalable High @ Level 1.3 > DQ= 16: Scalable High @ Level 3 > DQ= 17: Scalable High @ Level 3.1 > DQ= 18: Scalable High @ Level 3.1 > DQ= 32: Scalable High @ Level 4 > DQ= 33: Scalable High @ Level 4 > > # I do not know why JSVM shows wrong resolution 320x192, 640x368, but > the JSVM decoded resolution is right. > > SUMMARY: > bitrate Min-bitr Y-PSNR U-PSNR V-PSNR > --------- ---------- -------- -------- -------- > 320x192 @ 3.0000 105.3180 3.2400 75.1867 77.6071 75.0764 > 320x192 @ 6.0000 223.8720 8.4840 67.7323 76.1392 74.2387 > 320x192 @ 12.0000 338.7904 18.6560 57.3909 77.7631 76.0774 > 320x192 @ 24.0000 838.7456 34.9696 49.8598 70.5339 67.9347 > 640x368 @ 3.0000 596.0040 452.5980 65.9925 69.5955 66.0604 > 640x368 @ 6.0000 1227.1800 928.7520 60.0840 67.7073 65.3157 > 640x368 @ 12.0000 1904.9728 1436.2048 54.8221 65.1333 62.7191 > 640x368 @ 24.0000 4268.8896 3183.4624 52.2276 63.3834 60.6160 > 1280x720 @ 3.0000 861.6300 607.2900 65.9835 69.4145 66.7894 > 1280x720 @ 6.0000 1745.2800 1222.5960 59.6164 67.9509 64.2980 > 1280x720 @ 12.0000 2785.9584 1945.9072 54.6809 66.0932 63.4704 > 1280x720 @ 24.0000 5871.8528 4134.2336 54.5693 63.6624 61.2874 > > Regards, > Siyuan > --- > > > > On Tue, Feb 8, 2011 at 10:38, Siyuan Xiang <xia...@gm... > <mailto:xia...@gm...>> wrote: > > Thank you Mickaël and Médéric. > > I was using debug mode and SVC_decoder_v9 in > \src_1.10\Libs\SVC\build\PC.c. > Now it is much faster with Release_MMX configuration. > > > Regards, > Siyuan > --- > > > > > On Tue, Feb 8, 2011 at 02:34, Médéric Blestel > <Med...@in... > <mailto:Med...@in...>> wrote: > > Dear Siyuan, > > I'm using TCPMP or mplayer to do the benchmarcks with give a > timing and a frame rate more accurate. > The decoder is compilled with the Release_MMX configuration. > I am using windows 7 with visual studio 2008 professional. > > kind regards, > Médéric > > Le 08/02/2011 10:56, Siyuan Xiang a écrit : >> Dear Médéric, >> >> Thanks for your reply. I am using windows 7 with visual >> studio 2008 express. >> >> >> Regards, >> Siyuan >> --- >> >> >> >> On Tue, Feb 8, 2011 at 01:30, Médéric Blestel >> <Med...@in... >> <mailto:Med...@in...>> wrote: >> >> Dear Siyuan, >> >> Thank you for using OpenSVCDecoder. >> >> The Benchmarks on this page are quite old (version 1.07, >> sorry for that!!), but seems to still be updated. >> I just try on my computer and the sequence was decoded at >> 80 fps on a 2.93Ghz processor. >> >> What is your operating system? >> >> kind regards, >> Médéric >> >> Le 08/02/2011 10:12, Siyuan Xiang a écrit : >>> Hi, all, >>> >>> I played with the open SVC codec recently. I am quite >>> impressive with the excellent work. When I use the main >>> program PC.c to decode SVCBST-15 with 1280x720, but I >>> did not think the playback frame rate is as fast as >>> reported in >>> http://sourceforge.net/apps/mediawiki/opensvcdecoder/index.php?title=Decoder_Features >>> >>> >>> My computer is intel core 2 2.24GHz, the source code is >>> the src 1.1.0 version. Is there anything I am missing? >>> Should MMX , SSE or other optimization be enabled? >>> >>> >>> Regards, >>> Siyuan >>> --- >>> >>> >>> ------------------------------------------------------------------------------ >>> The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: >>> Pinpoint memory and threading errors before they happen. >>> Find and fix more than 250 security defects in the development cycle. >>> Locate bottlenecks in serial and parallel code that limit performance. >>> http://p.sf.net/sfu/intel-dev2devfeb >>> >>> >>> _______________________________________________ >>> Opensvcdecoder-support mailing list >>> Ope...@li... <mailto:Ope...@li...> >>> https://lists.sourceforge.net/lists/listinfo/opensvcdecoder-support >> >> >> >> ------------------------------------------------------------------------------ >> The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: >> Pinpoint memory and threading errors before they happen. >> Find and fix more than 250 security defects in the development cycle. >> Locate bottlenecks in serial and parallel code that limit performance. >> http://p.sf.net/sfu/intel-dev2devfeb >> >> >> _______________________________________________ >> Opensvcdecoder-support mailing list >> Ope...@li... <mailto:Ope...@li...> >> https://lists.sourceforge.net/lists/listinfo/opensvcdecoder-support > > > > > ------------------------------------------------------------------------------ > The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: > Pinpoint memory and threading errors before they happen. > Find and fix more than 250 security defects in the development cycle. > Locate bottlenecks in serial and parallel code that limit performance. > http://p.sf.net/sfu/intel-dev2devfeb > > > _______________________________________________ > Opensvcdecoder-support mailing list > Ope...@li... > https://lists.sourceforge.net/lists/listinfo/opensvcdecoder-support |
