mfxDECODE QueryIOSurf returns MFX_ERR_UNKNOWN = -1

[ikspe]

Hi,

from a few months, I'm using Intel Quick Sync for my job.
Here is what I do :

- in an application, I vpp + encode some video stream and store in to files
- in another application, I read this file, look for a keyframe and start : decode + vpp the stream and display it

Environment :
- pc1 : Windows 10 / 64 bits / i7-6950X / driver = (nvidia)
- pc2 : Windows 10 / 64 bits / i7-5600U / driver = intel graphics HD 520 v 20.19.15.4483
- pc3 : Windows 7 / 64 bits / i7-5600U / driver = intel graphics HD 5500 v20.19.15.4501

I'm sure my encoded stream is valid since I can decode almost evrywhere (pc1 with impl = auto = software / pc2 with both implementations software and auto=hardware / pc3 with implementation = software). But I can't decode it on the pc3 with implementation = auto = hardware.

The error I get happens when calling MFXVideoDECODE::QueryIOSurf()

	mfxInitParam initParam = { 0 };
	initParam.Version.Major = 1;
	initParam.Version.Minor = 0;
	initParam.Implementation = myImplParam; //I control it and can have AUTO/SOFTWARE/HARDWARE
	
	mfxStatus sts;
	
	MFXVideoSession hSession;
	sts = hSession.InitEx(initParam);
	if (MFX_ERR_NONE != sts)
	//treat error and exit

       PrintSessionAndImpl(hSession);
	
	MFXVideoDECODE* phDecode = new MFXVideoDECODE(hSession);
	sts = phDecode->DecodeHeader(&hBitstream, &hVideoParamDecode);
	if (MFX_WRN_PARTIAL_ACCELERATION == sts)
	//ignore
	if (MFX_ERR_NONE > sts)
	//treat error and exit
	
	PrintDecodeParam(hVideoParamDecode);
	
	mfxFrameAllocRequest hFrameAllocRequestDecode;
	memset(&hFrameAllocRequestDecode, 0, sizeof(hFrameAllocRequestDecode));
	sts = phDecode->QueryIOSurf(&hVideoParamDecode, &hFrameAllocRequestDecode);
	
	PrintFrameAllocRequest(hFrameAllocRequestDecode);
	if (MFX_WRN_PARTIAL_ACCELERATION == sts)
	//ignore
	
	if (MFX_ERR_NONE != sts)
	//treat error and exit

My printing functions give me the following results :

session.QueryIMPL() succeeded : impl = 0x302 = HARDWARE | VIA_D3D11
session.QueryVersion() succeeded : version = 1.19
videoParamDecode.mfx.CodecId = AVC
videoParamDecode.mfx.CodecLevel = 22
videoParamDecode.mfx.CodecProfile = 0x64 = 100
videoParamDecode.mfx.DecodedOrder = 0
videoParamDecode.mfx.ExtendedPicStruct = 0
videoParamDecode.mfx.TimeStampCalc = 0
videoParamDecode.mfx.SliceGroupsPresent = 0
videoParamDecode.mfx.MaxDecFrameBuffering = 2
videoParamDecode.mfx.EnableReallocRequest = 0
videoParamDecode.mfx.BRCParamMultiplier = 0
videoParamDecode.mfx.FrameInfo.FourCC = NV12
videoParamDecode.mfx.FrameInfo.AspectRatioW = 1
videoParamDecode.mfx.FrameInfo.AspectRatioH = 1
videoParamDecode.mfx.FrameInfo.ChromaFormat = 1
videoParamDecode.mfx.FrameInfo.PicStruct = 1
videoParamDecode.mfx.FrameInfo.FrameRateExtN = 10
videoParamDecode.mfx.FrameInfo.FrameRateExtD = 2
videoParamDecode.mfx.FrameInfo.CropX = 0
videoParamDecode.mfx.FrameInfo.CropY = 0
videoParamDecode.mfx.FrameInfo.CropW = 640
videoParamDecode.mfx.FrameInfo.CropH = 480
videoParamDecode.mfx.FrameInfo.Width = 640
videoParamDecode.mfx.FrameInfo.Height = 480
videoParamDecode.AsyncDepth = 4
videoParamDecode.IOPattern = 0x20
frameAllocRequestDecode.AllocId = 0
frameAllocRequestDecode.Info.FourCC =     
frameAllocRequestDecode.Info.AspectRatioW = 0
frameAllocRequestDecode.Info.AspectRatioH = 0
frameAllocRequestDecode.Info.ChromaFormat = 0
frameAllocRequestDecode.Info.PicStruct = 0
frameAllocRequestDecode.Info.FrameRateExtN = 0
frameAllocRequestDecode.Info.FrameRateExtD = 0
frameAllocRequestDecode.Info.CropX = 0
frameAllocRequestDecode.Info.CropY = 0
frameAllocRequestDecode.Info.CropW = 0
frameAllocRequestDecode.Info.CropH = 0
frameAllocRequestDecode.Info.Width = 0
frameAllocRequestDecode.Info.Height = 0
frameAllocRequestDecode.Type = 0x0 =
frameAllocRequestDecode.NumFrameMin = 0
frameAllocRequestDecode.NumFrameSuggested = 0
dec.QueryIOSurf() FAILED with sts = 0xffffffff = -1

Since it works on almost every use case, I wonder if this is a bug coming form using Hardware + Windows 7...

Anyone has an idea ?

Cheers,

[ikspe]

i also forgot to mention than I have run the tool mediasdk_system_analyzer_64.exe

It gave me the entiere list supported, both hw and sw, dec and enc :

        Version Target  Supported       Dec     Enc
        1.0     HW      Yes             X       X
        1.0     SW      Yes             X       X
................(all the same)
        1.19    HW      Yes             X       X
        1.19    SW      Yes             X       X

[ikspe]

After a while, I stopped investigating on this problem.
Then, I got another bug :
https://software.intel.com/en-us/forums/intel-media-sdk/topic/735733

I solved my bug by recompiling mfx_dispatch in Visual Studio 2015 in /MT mode and _ALLOW_RUNTIME_LIBRARY_MISMATCH
(So I can mix my application, which needs to be in /MD and /Mdd).

Doing so, it solved the bug from this thread : it now works on Windows 7 as on Windows 10.

(but I still consider the other one as being a bug : there should not have differences between mfx_dispatch /MD and /MT !)

[Stav_S_Intel]

Hi,

We apologize for the slow response- i am happy you solved your issue and will report the other issue to the development group. 

Thanks,

Stav