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/*
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_SINK_H_
#define MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_SINK_H_
#include "api/audio/audio_frame.h"
namespace webrtc {
namespace test {
// Interface class for an object receiving raw output audio from test
// applications.
class AudioSink {
public:
AudioSink() {}
virtual ~AudioSink() {}
AudioSink(const AudioSink&) = delete;
AudioSink& operator=(const AudioSink&) = delete;
// Writes `num_samples` from `audio` to the AudioSink. Returns true if
// successful, otherwise false.
virtual bool WriteArray(const int16_t* audio, size_t num_samples) = 0;
// Writes `audio_frame` to the AudioSink. Returns true if successful,
// otherwise false.
bool WriteAudioFrame(const AudioFrame& audio_frame) {
return WriteArray(audio_frame.data(), audio_frame.samples_per_channel_ *
audio_frame.num_channels_);
}
};
// Forks the output audio to two AudioSink objects.
class AudioSinkFork : public AudioSink {
public:
AudioSinkFork(AudioSink* left, AudioSink* right)
: left_sink_(left), right_sink_(right) {}
AudioSinkFork(const AudioSinkFork&) = delete;
AudioSinkFork& operator=(const AudioSinkFork&) = delete;
bool WriteArray(const int16_t* audio, size_t num_samples) override;
private:
AudioSink* left_sink_;
AudioSink* right_sink_;
};
// An AudioSink implementation that does nothing.
class VoidAudioSink : public AudioSink {
public:
VoidAudioSink() = default;
VoidAudioSink(const VoidAudioSink&) = delete;
VoidAudioSink& operator=(const VoidAudioSink&) = delete;
bool WriteArray(const int16_t* audio, size_t num_samples) override;
};
} // namespace test
} // namespace webrtc
#endif // MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_SINK_H_