On Wed, 2013-02-06 at 21:34 +0400, Rinat Ibragimov wrote: > Среда, 6 февраля 2013, 13:24 +08:00 от "Xiang, Haihao" > <haihao.xi...@intel.com>: > >On Tue, 2013-02-05 at 23:41 +0400, Ibragimov Rinat wrote: > >> Hi, > >> > >> During making attempts to use VAAPI I faced with couple of difficulties > >> and then realized I have no high-level understanding of how it should > >> be used. Philosophy of libva, if you like. Is there exists some > >> introductory article about? > > > >You can build the documentation which contains some pseudo code. > > Thank you. First I tried to enable doxygen output, and got empty result, as > master branch > did not have all required formatting. Staging branch contains all I need. > > > > >> > >> I don't understand why in i965 driver vaQueryImageFormats returns formats > >> in YUV-colorspace only (YV12, I420, NV12) but vaCreateImage have some code > >> with BGRA too. > > > >The image formats returned from vaQuerySubpictureFormats() are valid to > >vaCreateImage() > > > > One more question. > Is it correct that one can not display RGB VAImage other than rendering it to > YUV surface with > vaPutImage and then calling vaPutSurface? This will introduce slight quality > loss and I would > prefer to avoid that. >
Yes for the current driver. > -- > Rinat > _______________________________________________ Libva mailing list Libva@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libva
