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Diffstat (limited to 'media/gmp-clearkey/0.1/WMFUtils.h')
| -rw-r--r-- | media/gmp-clearkey/0.1/WMFUtils.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/media/gmp-clearkey/0.1/WMFUtils.h b/media/gmp-clearkey/0.1/WMFUtils.h new file mode 100644 index 0000000000..60322c8c0f --- /dev/null +++ b/media/gmp-clearkey/0.1/WMFUtils.h @@ -0,0 +1,243 @@ +/* + * Copyright 2013, Mozilla Foundation and contributors + * + * 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. + */ + +#ifndef __WMFUtils_h__ +#define __WMFUtils_h__ + +#include <cstdint> +#include <string> + +#include <assert.h> +#include <mfapi.h> +#include <mferror.h> +#include <mfobjects.h> +#include <mftransform.h> +#include <wmcodecdsp.h> +#include "mozilla/Attributes.h" +#include "VideoLimits.h" + +#include "gmp-platform.h" + +void LOG(const char* format, ...); + +#ifdef LOG_SAMPLE_DECODE +# define SAMPLE_LOG LOG +#else +# define SAMPLE_LOG(...) +#endif + +#ifndef CLSID_CMSAACDecMFT +# define WMF_MUST_DEFINE_AAC_MFT_CLSID +extern "C" const CLSID CLSID_CMSAACDecMFT; +#endif + +extern "C" const CLSID CLSID_CMSH264DecMFT; + +namespace wmf { + +// Reimplementation of CComPtr to reduce dependence on system +// shared libraries. +template <class T> +class CComPtr { + public: + CComPtr(CComPtr&& aOther) : mPtr(aOther.Detach()) {} + CComPtr& operator=(CComPtr&& other) { mPtr = other.Detach(); } + + CComPtr(const CComPtr& aOther) : mPtr(nullptr) { Set(aOther.Get()); } + CComPtr() : mPtr(nullptr) {} + MOZ_IMPLICIT CComPtr(T* const& aPtr) : mPtr(nullptr) { Set(aPtr); } + MOZ_IMPLICIT CComPtr(const std::nullptr_t& aNullPtr) : mPtr(aNullPtr) {} + T** operator&() { return &mPtr; } + T* operator->() { return mPtr; } + operator T*() { return mPtr; } + T* operator=(T* const& aPtr) { return Set(aPtr); } + T* operator=(const std::nullptr_t& aPtr) { return mPtr = aPtr; } + + T* Get() const { return mPtr; } + + T* Detach() { + T* tmp = mPtr; + mPtr = nullptr; + return tmp; + } + + ~CComPtr() { + if (mPtr) { + mPtr->Release(); + } + mPtr = nullptr; + } + + private: + T* Set(T* aPtr) { + if (mPtr == aPtr) { + return aPtr; + } + if (mPtr) { + mPtr->Release(); + } + mPtr = aPtr; + if (mPtr) { + mPtr->AddRef(); + } + return mPtr; + } + + T* mPtr; +}; + +class IntRect { + public: + IntRect(int32_t _x, int32_t _y, int32_t _w, int32_t _h) + : x(_x), y(_y), width(_w), height(_h) {} + IntRect() : x(0), y(0), width(0), height(0) {} + int32_t x; + int32_t y; + int32_t width; + int32_t height; +}; + +typedef int64_t Microseconds; + +#ifdef ENSURE +# undef ENSURE +#endif + +#define ENSURE(condition, ret) \ + { \ + if (!(condition)) { \ + LOG("##condition## FAILED %S:%d\n", __FILE__, __LINE__); \ + return ret; \ + } \ + } + +#define STATUS_SUCCEEDED(x) ((x) == Status::kSuccess) +#define STATUS_FAILED(x) ((x) != Status::kSuccess) + +#define MFPLAT_FUNC(_func, _dllname) extern decltype(::_func)* _func; +#include "WMFSymbols.h" +#undef MFPLAT_FUNC + +bool EnsureLibs(); + +HRESULT +GetPictureRegion(IMFMediaType* aMediaType, IntRect& aOutPictureRegion); + +HRESULT +GetDefaultStride(IMFMediaType* aType, uint32_t* aOutStride); + +// Converts from microseconds to hundreds of nanoseconds. +// We use microseconds for our timestamps, whereas WMF uses +// hundreds of nanoseconds. +inline int64_t UsecsToHNs(int64_t aUsecs) { return aUsecs * 10; } + +// Converts from hundreds of nanoseconds to microseconds. +// We use microseconds for our timestamps, whereas WMF uses +// hundreds of nanoseconds. +inline int64_t HNsToUsecs(int64_t hNanoSecs) { return hNanoSecs / 10; } + +inline std::string narrow(std::wstring& wide) { + std::string ns(wide.begin(), wide.end()); + return ns; +} + +inline std::wstring widen(std::string& narrow) { + std::wstring ws(narrow.begin(), narrow.end()); + return ws; +} + +#define ARRAY_LENGTH(array_) (sizeof(array_) / sizeof(array_[0])) + +template <class Type> +class AutoPtr { + public: + AutoPtr() : mPtr(nullptr) {} + + AutoPtr(AutoPtr<Type>& aPtr) : mPtr(aPtr.Forget()) {} + + explicit AutoPtr(Type* aPtr) : mPtr(aPtr) {} + + ~AutoPtr() { + if (mPtr) { + delete mPtr; + } + } + + Type* Forget() { + Type* rv = mPtr; + mPtr = nullptr; + return rv; + } + + AutoPtr<Type>& operator=(Type* aOther) { + Assign(aOther); + return *this; + } + + AutoPtr<Type>& operator=(AutoPtr<Type>& aOther) { + Assign(aOther.Forget()); + return *this; + } + + Type* Get() const { return mPtr; } + + Type* operator->() const { + assert(mPtr); + return Get(); + } + + operator Type*() const { return Get(); } + + Type** Receive() { return &mPtr; } + + private: + void Assign(Type* aPtr) { + if (mPtr) { + delete mPtr; + } + mPtr = aPtr; + } + + Type* mPtr; +}; + +// Video frame microseconds are (currently) in 90kHz units, as used by RTP. +// Use this to convert to microseconds... +inline Microseconds RTPTimeToMicroseconds(int64_t rtptime) { + return (rtptime * 1000000) / 90000; +} + +inline uint32_t MicrosecondsToRTPTime(Microseconds us) { + return uint32_t(0xffffffff & (us * 90000) / 1000000); +} + +void dump(const uint8_t* data, uint32_t len, const char* filename); + +HRESULT +CreateMFT(const CLSID& clsid, const char* aDllName, + CComPtr<IMFTransform>& aOutMFT); + +// Returns the name of the DLL that is needed to decode H.264 on +// the given windows version we're running on. +inline const char* WMFDecoderDllName() { return "msmpeg2vdec.dll"; } + +// Returns the maximum number of threads we want WMF to use for decoding +// given the number of logical processors available. +int32_t GetNumThreads(int32_t aCoreCount); + +} // namespace wmf + +#endif // __WMFUtils_h__ |