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/*
* 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__
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