You should call vaDeassociateSubpicture() to remove the association of the subpicture with your target surface.
Thanks Haihao > Oh, you're right, I ought to check my facts better, it is 0.7.0. > Just updated the yocto recipes for 0.7.2, and I get the same symptom. > > As for the symptom itself, the description was not quite correct > either: the short horizontal lines > are not black, when the subpicture is displayed they are of the color > of the underlying image (as > if the subpicture had some fully-transparent lines), and when > removing > the subpicture they are of the > color of the subpicture (much more visible when something was drawn > in > the subpicture other than > the background) > > Here is what I'm doing: > * identify subpicture format for bgra in what > vaQuerySubpictureFormats returns > * vaCreateImage with that format and the size of my overlay > * vaMapBuffer of the image's buf, and vaCreateSubpicture > * vaAssociateSubpicture with all the 3 surfaces I'm using for > decoding > * redraw in the mapped buffer (fill with a background with an alpha) > between vaEndPicture and vaPutSurface > * to remove the overlay, I just memset the buffer with 0 > > > 2016-09-13 10:10 GMT+02:00 Xiang, Haihao <haihao.xi...@intel.com>: > > > > > > How did you add the rectangle overlay? > > > > BTW did you build libva-x11 from the latest source code? We don't > > have > > libva-x11 0.7.1 > > > > Thanks > > Haihao > > > > > > > Hello, > > > > > > It is libva-x11 0.7.1 > > > > > > Thanks > > > > > > 2016-09-13 4:23 GMT+02:00 Xiang, Haihao <haihao.xi...@intel.com>: > > > > > > > > Hi Yann, > > > > > > > > Are you using libva? what is v0.7.1 / v0.7.2? > > > > > > > > Thanks > > > > Haihao > > > > > > > > > I have a decoding app which successfully decodes an h.264 > > > > > stream > > > > > on > > > > > several platforms, > > > > > both with i965 and amdgpu backends. If I add a simple > > > > > rectangle > > > > > overlay on one part of the > > > > > stream, while it's working on some i965 platforms, on the UP > > > > > board we > > > > > can see a good number > > > > > of horizontal short black line artifacts on the overlay area > > > > > while > > > > > it's displayed, and a very large > > > > > quantity of them once the overlay is removed. The artifacts > > > > > progressively with each frame, > > > > > as long as no overlay is modified. > > > > > > > > > > Is this a problem others have seen ? Could it come from a > > > > > wrong > > > > > usage > > > > > of overlays, which only by > > > > > just luck works elsewhere ? > > > > > > > > > > This is using v0.7.1 (0.7.2 changes do not mention any fix of > > > > > the > > > > > sort). > > > > > > > > > > > > > > > > > _______________________________________________ Libva mailing list Libva@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/libva
