本文整理汇总了C++中nsRefPtr::CreateVideoDecoder方法的典型用法代码示例。如果您正苦于以下问题：C++ nsRefPtr::CreateVideoDecoder方法的具体用法？C++ nsRefPtr::CreateVideoDecoder怎么用？C++ nsRefPtr::CreateVideoDecoder使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类nsRefPtr的用法示例。
在下文中一共展示了nsRefPtr::CreateVideoDecoder方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ConvertMFTypeToDXVAType
// This tests if a DXVA video decoder can be created for the given media type/resolution.
// It uses the same decoder device (DXVA2_ModeH264_E - DXVA2_ModeH264_VLD_NoFGT) as the H264
// decoder MFT provided by windows (CLSID_CMSH264DecoderMFT) uses, so we can use it to determine
// if the MFT will use software fallback or not.
bool
D3D9DXVA2Manager::SupportsConfig(IMFMediaType* aType)
{
DXVA2_VideoDesc desc;
HRESULT hr = ConvertMFTypeToDXVAType(aType, &desc);
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
UINT configCount;
DXVA2_ConfigPictureDecode* configs = nullptr;
hr = mDecoderService->GetDecoderConfigurations(DXVA2_ModeH264_E, &desc, nullptr, &configCount, &configs);
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
nsRefPtr<IDirect3DSurface9> surface;
hr = mDecoderService->CreateSurface(desc.SampleWidth, desc.SampleHeight, 0, (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2'),
D3DPOOL_DEFAULT, 0, DXVA2_VideoDecoderRenderTarget,
surface.StartAssignment(), NULL);
if (!SUCCEEDED(hr)) {
CoTaskMemFree(configs);
return false;
}
for (UINT i = 0; i < configCount; i++) {
nsRefPtr<IDirectXVideoDecoder> decoder;
IDirect3DSurface9* surfaces = surface;
hr = mDecoderService->CreateVideoDecoder(DXVA2_ModeH264_E, &desc, &configs[i], &surfaces, 1, decoder.StartAssignment());
if (SUCCEEDED(hr) && decoder) {
CoTaskMemFree(configs);
return true;
}
}
CoTaskMemFree(configs);
return false;
}