<div dir="ltr"><div>awesome, would like to see the result from HQ scaling sometime in the future. I am just using putSurface, don't want to go thru Proc pipeline if I don't have to. Is the performance penalty identical in both ways? Is there a way I can measure how much GPU processing (% and such) is being utilized? Thanks, </div>Ratin </div><div class="gmail_extra"> <div class="gmail_quote">On Tue, Feb 19, 2013 at 7:24 PM, Xiang, Haihao <<a href="mailto:haihao.xiang@intel.com" target="_blank">haihao.xiang@intel.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"> > I am using Intel_driver from the staging branch, on a Gen 3 HD4000. So > there other algorithms like bi-cubic is not supported? </div>You can select another scaling method other than the default method via the flag to vaPutSurface() or the filter_flag in VAProcPipelineParameterBuffer. /* Scaling flags for vaPutSurface() */ #define VA_FILTER_SCALING_DEFAULT 0x00000000 #define VA_FILTER_SCALING_FAST 0x00000100 #define VA_FILTER_SCALING_HQ 0x00000200 #define VA_FILTER_SCALING_NL_ANAMORPHIC 0x00000300 #define VA_FILTER_SCALING_MASK 0x00000f00 In VAProcPipelineParameterBuffer: * - Scaling: \c VA_FILTER_SCALING_DEFAULT, \c VA_FILTER_SCALING_FAST, * \c VA_FILTER_SCALING_HQ, \c VA_FILTER_SCALING_NL_ANAMORPHIC. */ unsigned int filter_flags; For Inter driver, Currently only VA_FILTER_SCALING_NL_ANAMORPHIC and VA_FILTER_SCALING_DEFAULT/VA_FILTER_SCALING_FAST are supported. We will add the support for VA_FILTER_SCALING_HQ. Thanks Haihao <div class="HOEnZb"><div class="h5"> > > > > On Mon, Feb 18, 2013 at 12:11 AM, Xiang, Haihao > <<a href="mailto:haihao.xiang@intel.com">haihao.xiang@intel.com</a>> wrote: > On Fri, 2013-02-15 at 16:18 -0800, Ratin wrote: > > I am decoding a 720 P video stream from a camera to 1080 P > surfaces > > and displaying them on the screen. I am seeing noticable > noise and > > pulsating which is directly related to the I frame interval > > (aparently), the lowest I-frame interval I can specify for > the camera > > is 1 second and selecting that in addition to bitrate of > 8192 kbps > > makes is slightly better but still a lot of noise. A > software > > decoded/scaled video looks all smooth. > > > > > > What I am wondering is what's the default scaling algorithm > being used > > in vaapi/intel driver and how do I specify better scaling > algorithms > > like bi-cubic etc.and possibly specify the strength of > deblocking > > filter level as well, and what can I do to reduce the > pulsating ? > > > Which driver are you using ? For Intel, it is bilinear. > > > > > > > > > > > Any input would be much appreciated. > > > > > > Thanks > > > > > > Ratin > > > > > > > _______________________________________________ > > Libva mailing list > > <a href="mailto:Libva@lists.freedesktop.org">Libva@lists.freedesktop.org</a> > > <a href="http://lists.freedesktop.org/mailman/listinfo/libva" target="_blank">http://lists.freedesktop.org/mailman/listinfo/libva</a> > > > > </div></div></blockquote></div> </div>