65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef AUDIOOUTPUTOBSERVER_H_
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#define AUDIOOUTPUTOBSERVER_H_
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#include "mozilla/StaticPtr.h"
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#include "nsAutoPtr.h"
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#include "AudioMixer.h"
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namespace webrtc {
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class SingleRwFifo;
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}
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namespace mozilla {
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typedef struct FarEndAudioChunk_ {
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uint16_t mSamples;
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bool mOverrun;
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int16_t mData[1]; // variable-length
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} FarEndAudioChunk;
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// XXX Really a singleton currently
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class AudioOutputObserver : public MixerCallbackReceiver
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{
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public:
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AudioOutputObserver();
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AudioOutputObserver);
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void MixerCallback(AudioDataValue* aMixedBuffer,
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AudioSampleFormat aFormat,
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uint32_t aChannels,
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uint32_t aFrames,
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uint32_t aSampleRate) override;
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void Clear();
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void InsertFarEnd(const AudioDataValue *aBuffer, uint32_t aFrames, bool aOverran,
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int aFreq, int aChannels, AudioSampleFormat aFormat);
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uint32_t PlayoutFrequency() { return mPlayoutFreq; }
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uint32_t PlayoutChannels() { return mPlayoutChannels; }
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FarEndAudioChunk *Pop();
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uint32_t Size();
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private:
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virtual ~AudioOutputObserver();
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uint32_t mPlayoutFreq;
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uint32_t mPlayoutChannels;
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nsAutoPtr<webrtc::SingleRwFifo> mPlayoutFifo;
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uint32_t mChunkSize;
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// chunking to 10ms support
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FarEndAudioChunk *mSaved; // can't be nsAutoPtr since we need to use free(), not delete
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uint32_t mSamplesSaved;
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};
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extern StaticRefPtr<AudioOutputObserver> gFarendObserver;
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}
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#endif
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