I am using Intel_driver from the staging branch, on a Gen 3 HD4000. So there other algorithms like bi-cubic is not supported?
On Mon, Feb 18, 2013 at 12:11 AM, Xiang, Haihao <[email protected]>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 > > [email protected] > > http://lists.freedesktop.org/mailman/listinfo/libva > > >
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