On Mon, Jan 28, 2013 at 8:13 PM, Li, Xiaowei A <[email protected]>wrote:
> Yes, it should be like this, if you still have concern, you can map the > surface out and dump to one bmp file to check.**** > > ** ** > > *From:* Ratin [mailto:[email protected]] > *Sent:* Tuesday, January 29, 2013 11:40 AM > *To:* Li, Xiaowei A > *Cc:* [email protected] > *Subject:* Re: [Libva] VAConfigAttribRTFormat**** > > ** ** > > Awesome, the decoder I am working with does support it and when i create > the surface with BGRA fourcc, the decoding still happens - so I am assuming > if I get the decoded bistream, the data will already be packed in BGRA > format - correct ? **** > > Thanks a bunch!**** > > Ratin**** > > ** > I believe that I was mistaken when I said "the decoder I am working with does support it", as the attrib value I get from the query function is actually just 1 (VA_RT_FORMAT_YUV420) > attrib.type = VAConfigAttribRTFormat; vaGetConfigAttributes(pVAAPICNTX->vaDisplay, VAProfile, VAEntrypointVLD, &attrib, 1); (gdb) p attrib $1 = {type = VAConfigAttribRTFormat, value = 1} Is there a Intel HD Graphics chip model that supports directly decoding to BGRA format surfaces? On Mon, Jan 28, 2013 at 5:32 PM, Li, Xiaowei A <[email protected]> > wrote:**** > > According to my understanding, VAConfigAttribRTFormat is used to describe > the surface sample format, for example YUV420 , YUV422, RGB32, and > VASurfaceAtrribPixelFormat aims to specify the detailed pixel storage > layout, for example, one YUV420 surface can be stored with YV12/NV12/I420 > pixel format and one RGB32 surface can be stored with RGBA/ARGB pixel > format.**** > > You can query whether VA_RT_FORMAT_RGB32 is supported as a render > target format through “vaGetConfigAttributes()”, if supported, you can > specify the BGRA fourcc when creating a render target surface.**** > > Usually , video decoder only support YUV420 as decoding output, > one color conversion is need to get BGRA surface.**** > > **** > > Thanks,**** > > Xiaowei**** > > **** > > *From:* [email protected][mailto: > [email protected]] *On Behalf Of > *Ratin > *Sent:* Tuesday, January 29, 2013 6:19 AM > *To:* [email protected] > *Subject:* [Libva] VAConfigAttribRTFormat**** > > **** > > Hi got a question: > > I noticed that the #define values for for VAConfigAttribRTFormat in > VAConfigAttrib does not include BGRA or ARGB formats (it does RGB 16 and > RGB32), but the VASurfaceAttrib's VASurfaceAttribPixelFormat does allow it > thru a four_cc value. Does that mean I can't decode the H.264 bitstream > data directly to a BGRA surface, I have to convert explicitly? > > **** > > /* attribute value for VAConfigAttribRTFormat */ > #define VA_RT_FORMAT_YUV420 0x00000001 > #define VA_RT_FORMAT_YUV422 0x00000002 > #define VA_RT_FORMAT_YUV444 0x00000004 > #define VA_RT_FORMAT_YUV411 0x00000008 > #define VA_RT_FORMAT_YUV400 0x00000010 > #define VA_RT_FORMAT_RGB16 0x00010000 > #define VA_RT_FORMAT_RGB32 0x00020000 > #define VA_RT_FORMAT_PROTECTED 0x80000000**** > > Thanks**** > > Ratin**** > > ** ** >
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