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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Can the vaapidecode, vaapipostproc gst elements be used to send raw YUV data to a typical gst sink element, such as xvimagesink or better yet, v4l2sink?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>We have written a v4l2sink driver that accepts raw YUV data from a 4K video file, but without the hardware acceleration support, the overall throughput of the pipeline is *<b>very</b>* poor. We installed the vaapi components and Intel driver and the improvement in performance is amazing, but we have only been able to get the standard “vaapi” pipelines working. Can we route the raw, decoded YUV data to a different sink?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Working:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>gst-launch-1.0 filesrc location=demo.mp4 ! vaapidecode ! vaapisink<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Not working:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>gst-launch-1.0 filesrc location=demo.mp4 ! qtdemux ! vaapidecode ! xvimagesink<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>gst-launch-1.0 filesrc location=demo.mp4 ! qtdemux ! vaapidecode ! v4l2sink device=/dev/video0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>gst-launch-1.0 filesrc location=demo.mp4 ! qtdemux ! vaapidecode ! vaapipostproc ! xvimagesink<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>gst-launch-1.0 filesrc location=demo.mp4 ! qtdemux ! vaapidecode ! vaapipostproc ! v4l2sink device=/dev/video0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>gst-launch-1.0 filesrc location=demo.mp4 ! qtdemux ! vaapidecode ! vaapipostproc ! 'video/x-raw, format=NV12, width=1920, height=1080' ! xvimagesink <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Found this bug but not familiar with vaapi enough to know if this is really related or if the proposed fix would be supported in a gst-launch pipeline.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><a href="https://bugzilla.gnome.org/show_bug.cgi?id=720174" target="_blank">https://bugzilla.gnome.org/show_bug.cgi?id=720174</a></span><span style='font-size:9.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Any help is greatly appreciated.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Glenn<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>================================================<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Ubuntu 13.11.0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Intel Ivybridge, Core i7-3517UE @ 1.70GHz<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Mobile Intel QM77 Express chipset<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>GPU HD 4000<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>grace@4ksrv:~$ vainfo<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>libva info: VA-API version 0.33.0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>libva info: va_getDriverName() returns 0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>libva info: Trying to open /usr/lib/i386-linux-gnu/dri/i965_drv_video.so<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>libva info: Found init function __vaDriverInit_0_33<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>libva info: va_openDriver() returns 0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>vainfo: VA-API version: 0.33 (libva 1.1.1)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>vainfo: Driver version: Intel i965 driver - 1.0.20<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>vainfo: Supported profile and entrypoints<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileMPEG2Simple : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileMPEG2Main : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileH264Baseline : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileH264Baseline : VAEntrypointEncSlice<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileH264Main : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileH264Main : VAEntrypointEncSlice<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileH264High : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileH264High : VAEntrypointEncSlice<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileVC1Simple : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileVC1Main : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileVC1Advanced : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'> VAProfileJPEGBaseline : VAEntrypointVLD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Glenn Racette<br>RightHand Technologies<br><a href="http://www.righthandtech.com/"><span style='color:windowtext;text-decoration:none'>www.righthandtech.com</span></a><br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p></div></body></html>