gecko/content/media/webrtc/AudioOutputObserver.h

56 lines
1.3 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef AUDIOOUTPUTOBSERVER_H_
#define AUDIOOUTPUTOBSERVER_H_
#include "mozilla/StaticPtr.h"
namespace webrtc {
class SingleRwFifo;
}
namespace mozilla {
typedef struct FarEndAudioChunk_ {
uint16_t mSamples;
bool mOverrun;
int16_t mData[1]; // variable-length
} FarEndAudioChunk;
// XXX Really a singleton currently
class AudioOutputObserver // : public MSGOutputObserver
{
public:
AudioOutputObserver();
virtual ~AudioOutputObserver();
void Clear();
void InsertFarEnd(const AudioDataValue *aBuffer, uint32_t aSamples, bool aOverran,
int aFreq, int aChannels, AudioSampleFormat aFormat);
uint32_t PlayoutFrequency() { return mPlayoutFreq; }
uint32_t PlayoutChannels() { return mPlayoutChannels; }
FarEndAudioChunk *Pop();
uint32_t Size();
private:
uint32_t mPlayoutFreq;
uint32_t mPlayoutChannels;
nsAutoPtr<webrtc::SingleRwFifo> mPlayoutFifo;
uint32_t mChunkSize;
// chunking to 10ms support
nsAutoPtr<FarEndAudioChunk> mSaved;
uint32_t mSamplesSaved;
};
// XXX until there's a registration API in MSG
extern StaticAutoPtr<AudioOutputObserver> gFarendObserver;
}
#endif