Doesn't work VaapiPostProcessScaler

[AlexanderKomarov]

VaapiPostProcessScaler doesn't work. It returns SharedPtr < VideoFrame > with zeros in crop.width and crop.height. I tested it on the vpp test and my application. I use DRM as display.
But all tests are passed.

I use Ubuntu 16.04. The latest libva, libyami and intel-vaapi-driver.

[xuguangxin]

could you share you command line and try our yamivpp application https://github.com/01org/libyami-utils/blob/master/tests/vpp.cpp like "yamivpp input_1920x1080.i420 output_320x240.yv12"

[AlexanderKomarov]

I just run vpp/unittest. Also I added this line std::cout << std::to_string(dest->crop.width) << " " << std::to_string(dest->crop.height) << std::endl; to VppDeinterlace function in vaapipostprocess_scaler_unittest.cpp after this line EXPECT_EQ(YAMI_SUCCESS, scaler.process(src, dest));
And I get only zeros. Is it normal?

I ran our yamivpp application. And it works.

[xuguangxin]

Yes, it's defined feature. If crop is zero, It will scale to the entire surface.
We have src crop and dest crop. src crop means you only need a sub rect on the source, dest crop means you only need scale src to the sub rect of dest.

[AlexanderKomarov]

ok, thank you for the answer.

Also quick question I tried to test YAMI_FOURCC_Y800 format for scaling but I get the error: "the requested function is not implemented". Do you plan to support it? And where can I get the list of supported formats for scaling?

[xuguangxin]

It's the error returned by libva. we depend on libva to do vpp.

Hi @xhaihao,
Can we query csc format in libva?

HI @AlexanderKomarov
Could you share us the usecase? Why you need Y800 scaling?

thanks

[xhaihao]

vaQuerySurfaceAttributes can return the supported surface attribute list for a given config, including pixel formats

[AlexanderKomarov]

@xuguangxin @xhaihao thanks for the answers.

We try to use Intel GPU for decoding/encoding JPEG from camera, scaling and transforming images. We use gray image in our system. Our system does face detection and face recognition.

[AlexanderKomarov]

@xuguangxin @xhaihao maybe is there some sense to add the issue of adding support Y800 for vpp in libva project?

[xuguangxin]

@xhaihao , what's the suggestion?:)