/**
* FreeRDP: A Remote Desktop Protocol Implementation
* H.264 Bitmap Compression
*
* Copyright 2014 Mike McDonald <Mike.McDonald@software.dell.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/log.h>
#include <freerdp/codec/h264.h>
#include <ks.h>
#include <codecapi.h>
#include <mfapi.h>
#include <mferror.h>
#include <wmcodecdsp.h>
#include <mftransform.h>
#include "h264.h"
#define TAG FREERDP_TAG("codec")
static const GUID sCLSID_CMSH264DecoderMFT = {
0x62CE7E72, 0x4C71, 0x4d20, { 0xB1, 0x5D, 0x45, 0x28, 0x31, 0xA8, 0x7D, 0x9D }
};
static const GUID sCLSID_VideoProcessorMFT = {
0x88753b26, 0x5b24, 0x49bd, { 0xb2, 0xe7, 0x0c, 0x44, 0x5c, 0x78, 0xc9, 0x82 }
};
static const GUID sIID_IMFTransform = {
0xbf94c121, 0x5b05, 0x4e6f, { 0x80, 0x00, 0xba, 0x59, 0x89, 0x61, 0x41, 0x4d }
};
static const GUID sMF_MT_MAJOR_TYPE = {
0x48eba18e, 0xf8c9, 0x4687, { 0xbf, 0x11, 0x0a, 0x74, 0xc9, 0xf9, 0x6a, 0x8f }
};
static const GUID sMF_MT_FRAME_SIZE = {
0x1652c33d, 0xd6b2, 0x4012, { 0xb8, 0x34, 0x72, 0x03, 0x08, 0x49, 0xa3, 0x7d }
};
static const GUID sMF_MT_DEFAULT_STRIDE = {
0x644b4e48, 0x1e02, 0x4516, { 0xb0, 0xeb, 0xc0, 0x1c, 0xa9, 0xd4, 0x9a, 0xc6 }
};
static const GUID sMF_MT_SUBTYPE = {
0xf7e34c9a, 0x42e8, 0x4714, { 0xb7, 0x4b, 0xcb, 0x29, 0xd7, 0x2c, 0x35, 0xe5 }
};
static const GUID sMF_XVP_DISABLE_FRC = {
0x2c0afa19, 0x7a97, 0x4d5a, { 0x9e, 0xe8, 0x16, 0xd4, 0xfc, 0x51, 0x8d, 0x8c }
};
static const GUID sMFMediaType_Video = {
0x73646976, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 }
};
static const GUID sMFVideoFormat_RGB32 = {
22, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 }
};
static const GUID sMFVideoFormat_ARGB32 = {
21, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 }
};
static const GUID sMFVideoFormat_H264 = {
0x34363248, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
};
static const GUID sMFVideoFormat_IYUV = {
0x56555949, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
};
static const GUID sIID_ICodecAPI = {
0x901db4c7, 0x31ce, 0x41a2, { 0x85, 0xdc, 0x8f, 0xa0, 0xbf, 0x41, 0xb8, 0xda }
};
static const GUID sCODECAPI_AVLowLatencyMode = {
0x9c27891a, 0xed7a, 0x40e1, { 0x88, 0xe8, 0xb2, 0x27, 0x27, 0xa0, 0x24, 0xee }
};
static const GUID sCODECAPI_AVDecVideoMaxCodedWidth = {
0x5ae557b8, 0x77af, 0x41f5, { 0x9f, 0xa6, 0x4d, 0xb2, 0xfe, 0x1d, 0x4b, 0xca }
};
static const GUID sCODECAPI_AVDecVideoMaxCodedHeight = {
0x7262a16a, 0xd2dc, 0x4e75, { 0x9b, 0xa8, 0x65, 0xc0, 0xc6, 0xd3, 0x2b, 0x13 }
};
#ifndef __IMFDXGIDeviceManager_FWD_DEFINED__
#define __IMFDXGIDeviceManager_FWD_DEFINED__
typedef interface IMFDXGIDeviceManager IMFDXGIDeviceManager;
#endif /* __IMFDXGIDeviceManager_FWD_DEFINED__ */
#ifndef __IMFDXGIDeviceManager_INTERFACE_DEFINED__
#define __IMFDXGIDeviceManager_INTERFACE_DEFINED__
typedef struct IMFDXGIDeviceManagerVtbl
{
HRESULT(STDMETHODCALLTYPE* QueryInterface)
(IMFDXGIDeviceManager* This, REFIID riid, void** ppvObject);
ULONG(STDMETHODCALLTYPE* AddRef)(IMFDXGIDeviceManager* This);
ULONG(STDMETHODCALLTYPE* Release)(IMFDXGIDeviceManager* This);
HRESULT(STDMETHODCALLTYPE* CloseDeviceHandle)(IMFDXGIDeviceManager* This, HANDLE hDevice);
HRESULT(STDMETHODCALLTYPE* GetVideoService)
(IMFDXGIDeviceManager* This, HANDLE hDevice, REFIID riid, void** ppService);
HRESULT(STDMETHODCALLTYPE* LockDevice)
(IMFDXGIDeviceManager* This, HANDLE hDevice, REFIID riid, void** ppUnkDevice, BOOL fBlock);
HRESULT(STDMETHODCALLTYPE* OpenDeviceHandle)(IMFDXGIDeviceManager* This, HANDLE* phDevice);
HRESULT(STDMETHODCALLTYPE* ResetDevice)
(IMFDXGIDeviceManager* This, IUnknown* pUnkDevice, UINT resetToken);
HRESULT(STDMETHODCALLTYPE* TestDevice)(IMFDXGIDeviceManager* This, HANDLE hDevice);
HRESULT(STDMETHODCALLTYPE* UnlockDevice)
(IMFDXGIDeviceManager* This, HANDLE hDevice, BOOL fSaveState);
} IMFDXGIDeviceManagerVtbl;
interface IMFDXGIDeviceManager
{
CONST_VTBL struct IMFDXGIDeviceManagerVtbl* lpVtbl;
};
#endif /* __IMFDXGIDeviceManager_INTERFACE_DEFINED__ */
typedef HRESULT(__stdcall* pfnMFStartup)(ULONG Version, DWORD dwFlags);
typedef HRESULT(__stdcall* pfnMFShutdown)(void);
typedef HRESULT(__stdcall* pfnMFCreateSample)(IMFSample** ppIMFSample);
typedef HRESULT(__stdcall* pfnMFCreateMemoryBuffer)(DWORD cbMaxLength, IMFMediaBuffer** ppBuffer);
typedef HRESULT(__stdcall* pfnMFCreateMediaType)(IMFMediaType** ppMFType);
struct _H264_CONTEXT_MF
{
ICodecAPI* codecApi;
IMFTransform* transform;
IMFMediaType* inputType;
IMFMediaType* outputType;
IMFSample* sample;
UINT32 frameWidth;
UINT32 frameHeight;
IMFSample* outputSample;
IMFMediaBuffer* outputBuffer;
HMODULE mfplat;
pfnMFStartup MFStartup;
pfnMFShutdown MFShutdown;
pfnMFCreateSample MFCreateSample;
pfnMFCreateMemoryBuffer MFCreateMemoryBuffer;
pfnMFCreateMediaType MFCreateMediaType;
};
typedef struct _H264_CONTEXT_MF H264_CONTEXT_MF;
static HRESULT mf_find_output_type(H264_CONTEXT_MF* sys, const GUID* guid,
IMFMediaType** ppMediaType)
{
DWORD idx = 0;
GUID mediaGuid;
HRESULT hr = S_OK;
IMFMediaType* pMediaType = NULL;
while (1)
{
hr = sys->transform->lpVtbl->GetOutputAvailableType(sys->transform, 0, idx, &pMediaType);
if (FAILED(hr))
break;
pMediaType->lpVtbl->GetGUID(pMediaType, &sMF_MT_SUBTYPE, &mediaGuid);
if (IsEqualGUID(&mediaGuid, guid))
{
*ppMediaType = pMediaType;
return S_OK;
}
pMediaType->lpVtbl->Release(pMediaType);
idx++;
}
return hr;
}
static HRESULT mf_create_output_sample(H264_CONTEXT* h264, H264_CONTEXT_MF* sys)
{
HRESULT hr = S_OK;
MFT_OUTPUT_STREAM_INFO streamInfo;
if (sys->outputSample)
{
sys->outputSample->lpVtbl->Release(sys->outputSample);
sys->outputSample = NULL;
}
hr = sys->MFCreateSample(&sys->outputSample);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "MFCreateSample failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->transform->lpVtbl->GetOutputStreamInfo(sys->transform, 0, &streamInfo);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "GetOutputStreamInfo failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->MFCreateMemoryBuffer(streamInfo.cbSize, &sys->outputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "MFCreateMemoryBuffer failure: 0x%08" PRIX32 "", hr);
goto error;
}
sys->outputSample->lpVtbl->AddBuffer(sys->outputSample, sys->outputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "AddBuffer failure: 0x%08" PRIX32 "", hr);
goto error;
}
sys->outputBuffer->lpVtbl->Release(sys->outputBuffer);
error:
return hr;
}
static int mf_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT32 SrcSize)
{
HRESULT hr;
BYTE* pbBuffer = NULL;
DWORD cbMaxLength = 0;
DWORD cbCurrentLength = 0;
DWORD outputStatus = 0;
IMFSample* inputSample = NULL;
IMFMediaBuffer* inputBuffer = NULL;
IMFMediaBuffer* outputBuffer = NULL;
MFT_OUTPUT_DATA_BUFFER outputDataBuffer;
H264_CONTEXT_MF* sys = (H264_CONTEXT_MF*)h264->pSystemData;
INT32* iStride = h264->iStride;
BYTE** pYUVData = h264->pYUVData;
hr = sys->MFCreateMemoryBuffer(SrcSize, &inputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "MFCreateMemoryBuffer failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = inputBuffer->lpVtbl->Lock(inputBuffer, &pbBuffer, &cbMaxLength, &cbCurrentLength);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "Lock failure: 0x%08" PRIX32 "", hr);
goto error;
}
CopyMemory(pbBuffer, pSrcData, SrcSize);
hr = inputBuffer->lpVtbl->SetCurrentLength(inputBuffer, SrcSize);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "SetCurrentLength failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = inputBuffer->lpVtbl->Unlock(inputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "Unlock failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->MFCreateSample(&inputSample);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "MFCreateSample failure: 0x%08" PRIX32 "", hr);
goto error;
}
inputSample->lpVtbl->AddBuffer(inputSample, inputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "AddBuffer failure: 0x%08" PRIX32 "", hr);
goto error;
}
inputBuffer->lpVtbl->Release(inputBuffer);
hr = sys->transform->lpVtbl->ProcessInput(sys->transform, 0, inputSample, 0);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "ProcessInput failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = mf_create_output_sample(h264, sys);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "mf_create_output_sample failure: 0x%08" PRIX32 "", hr);
goto error;
}
outputDataBuffer.dwStreamID = 0;
outputDataBuffer.dwStatus = 0;
outputDataBuffer.pEvents = NULL;
outputDataBuffer.pSample = sys->outputSample;
hr = sys->transform->lpVtbl->ProcessOutput(sys->transform, 0, 1, &outputDataBuffer,
&outputStatus);
if (hr == MF_E_TRANSFORM_STREAM_CHANGE)
{
UINT32 stride = 0;
UINT64 frameSize = 0;
if (sys->outputType)
{
sys->outputType->lpVtbl->Release(sys->outputType);
sys->outputType = NULL;
}
hr = mf_find_output_type(sys, &sMFVideoFormat_IYUV, &sys->outputType);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "mf_find_output_type failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->transform->lpVtbl->SetOutputType(sys->transform, 0, sys->outputType, 0);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "SetOutputType failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = mf_create_output_sample(h264, sys);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "mf_create_output_sample failure: 0x%08" PRIX32 "",
hr);
goto error;
}
hr = sys->outputType->lpVtbl->GetUINT64(sys->outputType, &sMF_MT_FRAME_SIZE, &frameSize);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR,
"GetUINT64(MF_MT_FRAME_SIZE) failure: 0x%08" PRIX32 "", hr);
goto error;
}
sys->frameWidth = (UINT32)(frameSize >> 32);
sys->frameHeight = (UINT32)frameSize;
hr = sys->outputType->lpVtbl->GetUINT32(sys->outputType, &sMF_MT_DEFAULT_STRIDE, &stride);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR,
"GetUINT32(MF_MT_DEFAULT_STRIDE) failure: 0x%08" PRIX32 "", hr);
goto error;
}
if (!avc420_ensure_buffer(h264, stride, sys->frameWidth, sys->frameHeight))
goto error;
}
else if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT)
{
}
else if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "ProcessOutput failure: 0x%08" PRIX32 "", hr);
goto error;
}
else
{
int offset = 0;
BYTE* buffer = NULL;
DWORD bufferCount = 0;
DWORD cbMaxLength = 0;
DWORD cbCurrentLength = 0;
hr = sys->outputSample->lpVtbl->GetBufferCount(sys->outputSample, &bufferCount);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "GetBufferCount failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->outputSample->lpVtbl->GetBufferByIndex(sys->outputSample, 0, &outputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "GetBufferByIndex failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = outputBuffer->lpVtbl->Lock(outputBuffer, &buffer, &cbMaxLength, &cbCurrentLength);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "Lock failure: 0x%08" PRIX32 "", hr);
goto error;
}
CopyMemory(pYUVData[0], &buffer[offset], iStride[0] * sys->frameHeight);
offset += iStride[0] * sys->frameHeight;
CopyMemory(pYUVData[1], &buffer[offset], iStride[1] * (sys->frameHeight / 2));
offset += iStride[1] * (sys->frameHeight / 2);
CopyMemory(pYUVData[2], &buffer[offset], iStride[2] * (sys->frameHeight / 2));
offset += iStride[2] * (sys->frameHeight / 2);
hr = outputBuffer->lpVtbl->Unlock(outputBuffer);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "Unlock failure: 0x%08" PRIX32 "", hr);
goto error;
}
outputBuffer->lpVtbl->Release(outputBuffer);
}
inputSample->lpVtbl->Release(inputSample);
return 1;
error:
fprintf(stderr, "mf_decompress error\n");
return -1;
}
static int mf_compress(H264_CONTEXT* h264, const BYTE** ppSrcYuv, const UINT32* pStride,
BYTE** ppDstData, UINT32* pDstSize)
{
H264_CONTEXT_MF* sys = (H264_CONTEXT_MF*)h264->pSystemData;
return 1;
}
static BOOL mf_plat_loaded(H264_CONTEXT_MF* sys)
{
return sys->MFStartup && sys->MFShutdown && sys->MFCreateSample && sys->MFCreateMemoryBuffer &&
sys->MFCreateMediaType;
}
static void mf_uninit(H264_CONTEXT* h264)
{
UINT32 x;
H264_CONTEXT_MF* sys = (H264_CONTEXT_MF*)h264->pSystemData;
if (sys)
{
if (sys->transform)
{
sys->transform->lpVtbl->Release(sys->transform);
sys->transform = NULL;
}
if (sys->codecApi)
{
sys->codecApi->lpVtbl->Release(sys->codecApi);
sys->codecApi = NULL;
}
if (sys->inputType)
{
sys->inputType->lpVtbl->Release(sys->inputType);
sys->inputType = NULL;
}
if (sys->outputType)
{
sys->outputType->lpVtbl->Release(sys->outputType);
sys->outputType = NULL;
}
if (sys->outputSample)
{
sys->outputSample->lpVtbl->Release(sys->outputSample);
sys->outputSample = NULL;
}
if (sys->mfplat)
{
if (mf_plat_loaded(sys))
sys->MFShutdown();
FreeLibrary(sys->mfplat);
sys->mfplat = NULL;
if (mf_plat_loaded(sys))
CoUninitialize();
}
for (x = 0; x < sizeof(h264->pYUVData) / sizeof(h264->pYUVData[0]); x++)
_aligned_free(h264->pYUVData[x]);
memset(h264->pYUVData, 0, sizeof(h264->pYUVData));
memset(h264->iStride, 0, sizeof(h264->iStride));
free(sys);
h264->pSystemData = NULL;
}
}
static BOOL mf_init(H264_CONTEXT* h264)
{
HRESULT hr;
H264_CONTEXT_MF* sys = (H264_CONTEXT_MF*)calloc(1, sizeof(H264_CONTEXT_MF));
if (!sys)
goto error;
h264->pSystemData = (void*)sys;
/* http://decklink-sdk-delphi.googlecode.com/svn/trunk/Blackmagic%20DeckLink%20SDK%209.7/Win/Samples/Streaming/StreamingPreview/DecoderMF.cpp
*/
sys->mfplat = LoadLibraryA("mfplat.dll");
if (!sys->mfplat)
goto error;
sys->MFStartup = (pfnMFStartup)GetProcAddress(sys->mfplat, "MFStartup");
sys->MFShutdown = (pfnMFShutdown)GetProcAddress(sys->mfplat, "MFShutdown");
sys->MFCreateSample = (pfnMFCreateSample)GetProcAddress(sys->mfplat, "MFCreateSample");
sys->MFCreateMemoryBuffer =
(pfnMFCreateMemoryBuffer)GetProcAddress(sys->mfplat, "MFCreateMemoryBuffer");
sys->MFCreateMediaType = (pfnMFCreateMediaType)GetProcAddress(sys->mfplat, "MFCreateMediaType");
if (!mf_plat_loaded(sys))
goto error;
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
if (h264->Compressor)
{
}
else
{
VARIANT var = { 0 };
hr = sys->MFStartup(MF_VERSION, 0);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "MFStartup failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = CoCreateInstance(&sCLSID_CMSH264DecoderMFT, NULL, CLSCTX_INPROC_SERVER,
&sIID_IMFTransform, (void**)&sys->transform);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR,
"CoCreateInstance(CLSID_CMSH264DecoderMFT) failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->transform->lpVtbl->QueryInterface(sys->transform, &sIID_ICodecAPI,
(void**)&sys->codecApi);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR,
"QueryInterface(IID_ICodecAPI) failure: 0x%08" PRIX32 "", hr);
goto error;
}
var.vt = VT_UI4;
var.ulVal = 1;
hr = sys->codecApi->lpVtbl->SetValue(sys->codecApi, &sCODECAPI_AVLowLatencyMode, &var);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR,
"SetValue(CODECAPI_AVLowLatencyMode) failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->MFCreateMediaType(&sys->inputType);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "MFCreateMediaType failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->inputType->lpVtbl->SetGUID(sys->inputType, &sMF_MT_MAJOR_TYPE,
&sMFMediaType_Video);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "SetGUID(MF_MT_MAJOR_TYPE) failure: 0x%08" PRIX32 "",
hr);
goto error;
}
hr = sys->inputType->lpVtbl->SetGUID(sys->inputType, &sMF_MT_SUBTYPE, &sMFVideoFormat_H264);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "SetGUID(MF_MT_SUBTYPE) failure: 0x%08" PRIX32 "",
hr);
goto error;
}
hr = sys->transform->lpVtbl->SetInputType(sys->transform, 0, sys->inputType, 0);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "SetInputType failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = mf_find_output_type(sys, &sMFVideoFormat_IYUV, &sys->outputType);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "mf_find_output_type failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = sys->transform->lpVtbl->SetOutputType(sys->transform, 0, sys->outputType, 0);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "SetOutputType failure: 0x%08" PRIX32 "", hr);
goto error;
}
hr = mf_create_output_sample(h264, sys);
if (FAILED(hr))
{
WLog_Print(h264->log, WLOG_ERROR, "mf_create_output_sample failure: 0x%08" PRIX32 "",
hr);
goto error;
}
}
return TRUE;
error:
WLog_Print(h264->log, WLOG_ERROR, "mf_init failure");
mf_uninit(h264);
return FALSE;
}
H264_CONTEXT_SUBSYSTEM g_Subsystem_MF = { "MediaFoundation", mf_init, mf_uninit, mf_decompress,
mf_compress };