зеркало из https://github.com/mozilla/gecko-dev.git
111 строки
2.9 KiB
C++
111 строки
2.9 KiB
C++
/*
|
|
* 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 __VideoDecoder_h__
|
|
#define __VideoDecoder_h__
|
|
|
|
#include <atomic>
|
|
|
|
#include "gmp-task-utils.h"
|
|
#include "gmp-video-decode.h"
|
|
#include "gmp-video-host.h"
|
|
#include "WMFH264Decoder.h"
|
|
|
|
#include "mfobjects.h"
|
|
|
|
class VideoDecoder : public GMPVideoDecoder
|
|
, public RefCounted
|
|
{
|
|
public:
|
|
VideoDecoder(GMPVideoHost *aHostAPI);
|
|
|
|
virtual void InitDecode(const GMPVideoCodec& aCodecSettings,
|
|
const uint8_t* aCodecSpecific,
|
|
uint32_t aCodecSpecificLength,
|
|
GMPVideoDecoderCallback* aCallback,
|
|
int32_t aCoreCount) override;
|
|
|
|
virtual void Decode(GMPVideoEncodedFrame* aInputFrame,
|
|
bool aMissingFrames,
|
|
const uint8_t* aCodecSpecific,
|
|
uint32_t aCodecSpecificLength,
|
|
int64_t aRenderTimeMs = -1);
|
|
|
|
virtual void Reset() override;
|
|
|
|
virtual void Drain() override;
|
|
|
|
virtual void DecodingComplete() override;
|
|
|
|
bool HasShutdown() { return mHasShutdown; }
|
|
|
|
private:
|
|
|
|
virtual ~VideoDecoder();
|
|
|
|
void EnsureWorker();
|
|
|
|
void DrainTask();
|
|
|
|
struct DecodeData {
|
|
DecodeData()
|
|
: mTimestamp(0)
|
|
, mDuration(0)
|
|
, mIsKeyframe(false)
|
|
{}
|
|
std::vector<uint8_t> mBuffer;
|
|
uint64_t mTimestamp;
|
|
uint64_t mDuration;
|
|
bool mIsKeyframe;
|
|
CryptoMetaData mCrypto;
|
|
};
|
|
|
|
void DecodeTask(DecodeData* aData);
|
|
|
|
void ResetCompleteTask();
|
|
|
|
void ReturnOutput(IMFSample* aSample,
|
|
int32_t aWidth,
|
|
int32_t aHeight,
|
|
int32_t aStride);
|
|
|
|
HRESULT SampleToVideoFrame(IMFSample* aSample,
|
|
int32_t aWidth,
|
|
int32_t aHeight,
|
|
int32_t aStride,
|
|
GMPVideoi420Frame* aVideoFrame);
|
|
|
|
void MaybeRunOnMainThread(GMPTask* aTask);
|
|
|
|
GMPVideoHost *mHostAPI; // host-owned, invalid at DecodingComplete
|
|
GMPVideoDecoderCallback* mCallback; // host-owned, invalid at DecodingComplete
|
|
GMPThread* mWorkerThread;
|
|
GMPMutex* mMutex;
|
|
wmf::AutoPtr<wmf::WMFH264Decoder> mDecoder;
|
|
|
|
std::vector<uint8_t> mExtraData;
|
|
std::vector<uint8_t> mAnnexB;
|
|
|
|
int32_t mNumInputTasks;
|
|
bool mSentExtraData;
|
|
|
|
std::atomic<bool> mIsFlushing;
|
|
|
|
bool mHasShutdown;
|
|
};
|
|
|
|
#endif // __VideoDecoder_h__
|