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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 STARBOARD_NPLB_AUDIO_SINK_HELPERS_H_
#define STARBOARD_NPLB_AUDIO_SINK_HELPERS_H_
#include <vector>
#include "starboard/audio_sink.h"
#include "starboard/condition_variable.h"
#include "starboard/mutex.h"
#include "starboard/time.h"
namespace starboard {
namespace nplb {
// Helper class to manage frame buffers for audio sink. When created without
// sample type and storage type specified, it will pick any supported sample
// type and storage type that is valid on this platform.
class AudioSinkTestFrameBuffers {
public:
static const int kFramesPerChannel = 4096;
explicit AudioSinkTestFrameBuffers(int channels);
AudioSinkTestFrameBuffers(int channels, SbMediaAudioSampleType sample_type);
AudioSinkTestFrameBuffers(int channels,
SbMediaAudioFrameStorageType storage_type);
AudioSinkTestFrameBuffers(int channels,
SbMediaAudioSampleType sample_type,
SbMediaAudioFrameStorageType storage_type);
SbMediaAudioSampleType sample_type() const { return sample_type_; }
SbMediaAudioFrameStorageType storage_type() const { return storage_type_; }
int channels() const { return channels_; }
int bytes_per_frame() const {
return sample_type_ == kSbMediaAudioSampleTypeInt16 ? 2 : 4;
}
static int frames_per_channel() { return kFramesPerChannel; }
void** frame_buffers() {
return frame_buffers_.empty() ? NULL : &frame_buffers_[0];
}
private:
void Init();
int channels_;
SbMediaAudioSampleType sample_type_;
SbMediaAudioFrameStorageType storage_type_;
std::vector<uint8_t> frame_buffer_;
std::vector<void*> frame_buffers_;
};
// Helper class to manage an SbAudioSink. It provides function to wait until
// certain callbacks are called.
class AudioSinkTestEnvironment {
public:
static const int kSampleRateCD = 44100;
static const SbTimeMonotonic kTimeToTry = kSbTimeSecond;
explicit AudioSinkTestEnvironment(
const AudioSinkTestFrameBuffers& frame_buffers);
~AudioSinkTestEnvironment();
static int sample_rate() {
return SbAudioSinkGetNearestSupportedSampleFrequency(kSampleRateCD);
}
void SetIsPlaying(bool is_playing);
void AppendFrame(int frames_to_append);
int GetFrameBufferFreeSpaceAmount() const;
// The following functions return true when the expected condition are met.
// Return false on timeout.
bool WaitUntilUpdateStatusCalled();
bool WaitUntilSomeFramesAreConsumed();
bool WaitUntilAllFramesAreConsumed();
private:
void OnUpdateSourceStatus(int* frames_in_buffer,
int* offset_in_frames,
bool* is_playing,
bool* is_eos_reached);
void OnConsumeFrames(int frames_consumed);
static void UpdateSourceStatusFunc(int* frames_in_buffer,
int* offset_in_frames,
bool* is_playing,
bool* is_eos_reached,
void* context);
static void ConsumeFramesFunc(int frames_consumed, void* context);
SbAudioSink sink_;
AudioSinkTestFrameBuffers frame_buffers_;
Mutex mutex_;
ConditionVariable condition_variable_;
int update_source_status_call_count_;
int frames_appended_;
int frames_consumed_;
bool is_playing_;
};
} // namespace nplb
} // namespace starboard
#endif // STARBOARD_NPLB_AUDIO_SINK_HELPERS_H_