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/*
* Copyright 2015, 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 __AudioDecoder_h__
#define __AudioDecoder_h__
#include "gmp-audio-decode.h"
#include "gmp-audio-host.h"
#include "gmp-task-utils.h"
#include "WMFAACDecoder.h"
#include "RefCounted.h"
#include "mfobjects.h"
class AudioDecoder : public GMPAudioDecoder
, public RefCounted
{
public:
AudioDecoder(GMPAudioHost *aHostAPI);
virtual void InitDecode(const GMPAudioCodec& aCodecSettings,
GMPAudioDecoderCallback* aCallback) override;
virtual void Decode(GMPAudioSamples* aEncodedSamples);
virtual void Reset() override;
virtual void Drain() override;
virtual void DecodingComplete() override;
bool HasShutdown() { return mHasShutdown; }
private:
virtual ~AudioDecoder();
void EnsureWorker();
void DecodeTask(GMPAudioSamples* aEncodedSamples);
void DrainTask();
void ReturnOutput(IMFSample* aSample);
HRESULT MFToGMPSample(IMFSample* aSample,
GMPAudioSamples* aAudioFrame);
void MaybeRunOnMainThread(GMPTask* aTask);
GMPAudioHost *mHostAPI; // host-owned, invalid at DecodingComplete
GMPAudioDecoderCallback* mCallback; // host-owned, invalid at DecodingComplete
GMPThread* mWorkerThread;
GMPMutex* mMutex;
wmf::AutoPtr<wmf::WMFAACDecoder> mDecoder;
int32_t mNumInputTasks;
bool mHasShutdown;
};
#endif // __AudioDecoder_h__
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