mirror of
https://github.com/mozilla/gecko-dev.git
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150 lines
3.8 KiB
C++
150 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if !defined(GMPAudioDecoder_h_)
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#define GMPAudioDecoder_h_
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#include "GMPAudioDecoderProxy.h"
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#include "MediaDataDecoderProxy.h"
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#include "PlatformDecoderModule.h"
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#include "mozIGeckoMediaPluginService.h"
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namespace mozilla {
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class AudioCallbackAdapter : public GMPAudioDecoderCallbackProxy {
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public:
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explicit AudioCallbackAdapter(MediaDataDecoderCallbackProxy* aCallback)
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: mCallback(aCallback)
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, mLastStreamOffset(0)
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, mAudioFrameSum(0)
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, mAudioFrameOffset(0)
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, mMustRecaptureAudioPosition(true)
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{}
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// GMPAudioDecoderCallbackProxy
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virtual void Decoded(const nsTArray<int16_t>& aPCM, uint64_t aTimeStamp, uint32_t aChannels, uint32_t aRate) override;
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virtual void InputDataExhausted() override;
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virtual void DrainComplete() override;
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virtual void ResetComplete() override;
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virtual void Error(GMPErr aErr) override;
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virtual void Terminated() override;
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void SetLastStreamOffset(int64_t aStreamOffset) {
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mLastStreamOffset = aStreamOffset;
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}
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private:
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MediaDataDecoderCallbackProxy* mCallback;
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int64_t mLastStreamOffset;
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int64_t mAudioFrameSum;
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int64_t mAudioFrameOffset;
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bool mMustRecaptureAudioPosition;
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};
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class GMPAudioDecoder : public MediaDataDecoder {
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protected:
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GMPAudioDecoder(const mp4_demuxer::AudioDecoderConfig& aConfig,
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MediaTaskQueue* aTaskQueue,
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MediaDataDecoderCallbackProxy* aCallback,
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AudioCallbackAdapter* aAdapter)
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: mConfig(aConfig)
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, mCallback(aCallback)
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, mGMP(nullptr)
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, mAdapter(aAdapter)
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{
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}
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public:
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GMPAudioDecoder(const mp4_demuxer::AudioDecoderConfig& aConfig,
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MediaTaskQueue* aTaskQueue,
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MediaDataDecoderCallbackProxy* aCallback)
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: mConfig(aConfig)
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, mCallback(aCallback)
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, mGMP(nullptr)
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, mAdapter(new AudioCallbackAdapter(aCallback))
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{
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}
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virtual nsresult Init() override;
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virtual nsresult Input(MediaRawData* aSample) override;
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virtual nsresult Flush() override;
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virtual nsresult Drain() override;
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virtual nsresult Shutdown() override;
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protected:
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virtual void InitTags(nsTArray<nsCString>& aTags);
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virtual nsCString GetNodeId();
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private:
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class GMPInitDoneRunnable : public nsRunnable
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{
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public:
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GMPInitDoneRunnable()
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: mInitDone(false),
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mThread(do_GetCurrentThread())
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{
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}
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NS_IMETHOD Run()
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{
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mInitDone = true;
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return NS_OK;
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}
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void Dispatch()
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{
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mThread->Dispatch(this, NS_DISPATCH_NORMAL);
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}
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bool IsDone()
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{
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MOZ_ASSERT(nsCOMPtr<nsIThread>(do_GetCurrentThread()) == mThread);
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return mInitDone;
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}
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private:
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bool mInitDone;
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nsCOMPtr<nsIThread> mThread;
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};
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void GetGMPAPI(GMPInitDoneRunnable* aInitDone);
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class GMPInitDoneCallback : public GetGMPAudioDecoderCallback
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{
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public:
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GMPInitDoneCallback(GMPAudioDecoder* aDecoder,
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GMPInitDoneRunnable* aGMPInitDone)
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: mDecoder(aDecoder)
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, mGMPInitDone(aGMPInitDone)
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{
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}
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virtual void Done(GMPAudioDecoderProxy* aGMP)
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{
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if (aGMP) {
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mDecoder->GMPInitDone(aGMP);
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}
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mGMPInitDone->Dispatch();
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}
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private:
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nsRefPtr<GMPAudioDecoder> mDecoder;
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nsRefPtr<GMPInitDoneRunnable> mGMPInitDone;
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};
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void GMPInitDone(GMPAudioDecoderProxy* aGMP);
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const mp4_demuxer::AudioDecoderConfig& mConfig;
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MediaDataDecoderCallbackProxy* mCallback;
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nsCOMPtr<mozIGeckoMediaPluginService> mMPS;
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GMPAudioDecoderProxy* mGMP;
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nsAutoPtr<AudioCallbackAdapter> mAdapter;
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};
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} // namespace mozilla
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#endif // GMPAudioDecoder_h_
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