Thanks, Jon.
> Thank you for the information, Haihao. I have filed this feature > request in bugzilla. > > https://bugs.freedesktop.org/show_bug.cgi?id=99193 > > > Jon > > -----Original Message----- > From: Xiang, Haihao > Sent: Friday, December 23, 2016 12:55 AM > To: Recker, Jon <jon.rec...@intel.com>; libva@lists.freedesktop.org > Subject: Re: [Libva] Filling background pixels with YUV values > > > Hi Jon, > > VA-API doesn't support YUV background color. If you want to have this > feature, I suggest you file a bug with severity set to enhancement in > the bugzilla to track your requirement. We may consider to add this > new feature in a future version. > > Thanks > Haihao > > > Hello. > > > > When composing several sources into a single output surface, we can > > specify the color of the background pixels using > > VAProcPipelineParameterBuffer::output_background_color. According > to > > the documentation, this background color must be a 32-bit ARGB > value. > > > > But when the output is a non-RGB format (for example, NV12) it > would > > be helpful if we could set the background color to a constant YUV > > value instead. Does libva provide any method to do this? > > > > I have tried converting the desired YUV background color to RGB, > then > > setting output_background_color to this RGB value. When the final > > picture is processed, the background color is converted back to YUV > > automatically. But the final background color does not necessarily > > match the requested value, for example when one of the RGB channels > is > > clipped to fit in the range [0,255]. > > > > A workaround would be to create a separate full-size NV12 surface > and > > fill it with the desired background color, but for performance > reasons > > it is preferable to avoid this. Any suggestions would be very much > > appreciated. Thanks. > > > > Jon > > > > _______________________________________________ > > Libva mailing list > > Libva@lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/libva _______________________________________________ Libva mailing list Libva@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/libva