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// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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 COBALT_SPEECH_MICROPHONE_STARBOARD_H_
#define COBALT_SPEECH_MICROPHONE_STARBOARD_H_
#include "cobalt/speech/speech_configuration.h"
#if defined(SB_USE_SB_MICROPHONE)
#include <string>
#include "cobalt/speech/microphone.h"
#include "starboard/microphone.h"
namespace cobalt {
namespace speech {
class MicrophoneStarboard : public Microphone {
public:
static const int kDefaultSampleRate = 16000;
// Starboard uses int16 as sample size.
static const int16 kSbMicrophoneSampleSizeInBytes = 2;
MicrophoneStarboard(int sample_rate, int buffer_size_bytes);
~MicrophoneStarboard() override;
bool Open() override;
int Read(char* out_data, int data_size) override;
bool Close() override;
int MinMicrophoneReadInBytes() override {
return min_microphone_read_in_bytes_;
}
bool IsValid() override { return SbMicrophoneIsValid(microphone_); }
const char* Label() override { return label_.c_str(); }
private:
// Minimum requested bytes per microphone read.
int min_microphone_read_in_bytes_;
SbMicrophone microphone_;
std::string label_;
};
} // namespace speech
} // namespace cobalt
#endif // defined(SB_USE_SB_MICROPHONE)
#endif // COBALT_SPEECH_MICROPHONE_STARBOARD_H_