blob: 68608de594f982fb59ef2594eb26e2cef558e7bc [file] [log] [blame]
/*
* Copyright 2016 The Android Open Source Project
*
* 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 LEGACY_AUDIO_STREAM_TRACK_H
#define LEGACY_AUDIO_STREAM_TRACK_H
#include <math.h>
#include <media/TrackPlayerBase.h>
#include <media/AudioTrack.h>
#include <aaudio/AAudio.h>
#include "AudioStreamBuilder.h"
#include "AudioStream.h"
#include "legacy/AAudioLegacy.h"
#include "legacy/AudioStreamLegacy.h"
#include "utility/FixedBlockReader.h"
namespace aaudio {
/**
* Internal stream that uses the legacy AudioTrack path.
*/
class AudioStreamTrack : public AudioStreamLegacy {
public:
AudioStreamTrack();
virtual ~AudioStreamTrack();
aaudio_result_t open(const AudioStreamBuilder & builder) override;
aaudio_result_t close() override;
aaudio_result_t requestStart() override;
aaudio_result_t requestPause() override;
aaudio_result_t requestFlush() override;
aaudio_result_t requestStop() override;
bool isFlushSupported() const override {
// Only implement FLUSH for OUTPUT streams.
return true;
}
bool isPauseSupported() const override {
// Only implement PAUSE for OUTPUT streams.
return true;
}
aaudio_result_t getTimestamp(clockid_t clockId,
int64_t *framePosition,
int64_t *timeNanoseconds) override;
aaudio_result_t write(const void *buffer,
int32_t numFrames,
int64_t timeoutNanoseconds) override;
aaudio_result_t setBufferSize(int32_t requestedFrames) override;
int32_t getBufferSize() const override;
int32_t getBufferCapacity() const override;
int32_t getFramesPerBurst()const override;
int32_t getXRunCount() const override;
int64_t getFramesRead() override;
aaudio_direction_t getDirection() const override {
return AAUDIO_DIRECTION_OUTPUT;
}
aaudio_result_t updateStateMachine() override;
// This is public so it can be called from the C callback function.
void processCallback(int event, void *info) override;
int64_t incrementClientFrameCounter(int32_t frames) override {
return incrementFramesWritten(frames);
}
android::status_t doSetVolume() override;
#if AAUDIO_USE_VOLUME_SHAPER
virtual android::binder::Status applyVolumeShaper(
const android::media::VolumeShaper::Configuration& configuration,
const android::media::VolumeShaper::Operation& operation) override;
#endif
private:
android::sp<android::AudioTrack> mAudioTrack;
// adapts between variable sized blocks and fixed size blocks
FixedBlockReader mFixedBlockReader;
// TODO add 64-bit position reporting to AudioTrack and use it.
aaudio_wrapping_frames_t mPositionWhenPausing = 0;
};
} /* namespace aaudio */
#endif /* LEGACY_AUDIO_STREAM_TRACK_H */