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// Copyright 2016 The Cobalt Authors. 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.
#include "starboard/nplb/audio_sink_helpers.h"
#include <algorithm>
#include "starboard/common/log.h"
#include "starboard/configuration_constants.h"
namespace starboard {
namespace nplb {
namespace {
SbMediaAudioSampleType GetAnySupportedSampleType() {
if (SbAudioSinkIsAudioSampleTypeSupported(
kSbMediaAudioSampleTypeInt16Deprecated)) {
return kSbMediaAudioSampleTypeInt16Deprecated;
}
return kSbMediaAudioSampleTypeFloat32;
}
SbMediaAudioFrameStorageType GetAnySupportedFrameStorageType() {
if (SbAudioSinkIsAudioFrameStorageTypeSupported(
kSbMediaAudioFrameStorageTypeInterleaved)) {
return kSbMediaAudioFrameStorageTypeInterleaved;
}
return kSbMediaAudioFrameStorageTypePlanar;
}
} // namespace
AudioSinkTestFrameBuffers::AudioSinkTestFrameBuffers(int channels)
: channels_(channels),
sample_type_(GetAnySupportedSampleType()),
storage_type_(GetAnySupportedFrameStorageType()) {
Init();
}
AudioSinkTestFrameBuffers::AudioSinkTestFrameBuffers(
int channels,
SbMediaAudioSampleType sample_type)
: channels_(channels),
sample_type_(sample_type),
storage_type_(GetAnySupportedFrameStorageType()) {
Init();
}
AudioSinkTestFrameBuffers::AudioSinkTestFrameBuffers(
int channels,
SbMediaAudioFrameStorageType storage_type)
: channels_(channels),
sample_type_(GetAnySupportedSampleType()),
storage_type_(storage_type) {
Init();
}
AudioSinkTestFrameBuffers::AudioSinkTestFrameBuffers(
int channels,
SbMediaAudioSampleType sample_type,
SbMediaAudioFrameStorageType storage_type)
: channels_(channels),
sample_type_(sample_type),
storage_type_(storage_type) {
Init();
}
void AudioSinkTestFrameBuffers::Init() {
#if SB_API_VERSION >= 11
frames_per_channel_ = SbAudioSinkGetMinBufferSizeInFrames(
channels_, sample_type_, AudioSinkTestEnvironment::sample_rate());
#else // SB_API_VERSION >= 11
frames_per_channel_ = 4096;
#endif // SB_API_VERSION >= 11
if (storage_type_ == kSbMediaAudioFrameStorageTypeInterleaved) {
frame_buffer_.resize(bytes_per_frame() * channels_ * frames_per_channel());
frame_buffers_.resize(1);
frame_buffers_[0] = &frame_buffer_[0];
} else {
// We make all planar audio channels share the same frame buffer.
frame_buffer_.resize(bytes_per_frame() * frames_per_channel());
frame_buffers_.resize(channels_, &frame_buffer_[0]);
}
}
AudioSinkTestEnvironment::AudioSinkTestEnvironment(
const AudioSinkTestFrameBuffers& frame_buffers)
: frame_buffers_(frame_buffers), condition_variable_(mutex_) {
sink_ = SbAudioSinkCreate(
frame_buffers_.channels(), sample_rate(), frame_buffers_.sample_type(),
frame_buffers_.storage_type(), frame_buffers_.frame_buffers(),
frame_buffers_.frames_per_channel(), UpdateSourceStatusFunc,
ConsumeFramesFunc, this);
}
AudioSinkTestEnvironment::~AudioSinkTestEnvironment() {
SbAudioSinkDestroy(sink_);
}
void AudioSinkTestEnvironment::SetIsPlaying(bool is_playing) {
ScopedLock lock(mutex_);
is_playing_ = is_playing;
}
void AudioSinkTestEnvironment::AppendFrame(int frames_to_append) {
ScopedLock lock(mutex_);
AppendFrame_Locked(frames_to_append);
}
int AudioSinkTestEnvironment::GetFrameBufferFreeSpaceInFrames() const {
ScopedLock lock(mutex_);
return GetFrameBufferFreeSpaceInFrames_Locked();
}
bool AudioSinkTestEnvironment::WaitUntilUpdateStatusCalled() {
ScopedLock lock(mutex_);
int update_source_status_call_count = update_source_status_call_count_;
SbTimeMonotonic start = SbTimeGetMonotonicNow();
while (update_source_status_call_count == update_source_status_call_count_) {
SbTime time_elapsed = SbTimeGetMonotonicNow() - start;
if (time_elapsed >= kTimeToTry) {
return false;
}
SbTime time_to_wait = kTimeToTry - time_elapsed;
condition_variable_.WaitTimed(time_to_wait);
}
return true;
}
bool AudioSinkTestEnvironment::WaitUntilSomeFramesAreConsumed() {
ScopedLock lock(mutex_);
int frames_consumed = frames_consumed_;
SbTimeMonotonic start = SbTimeGetMonotonicNow();
while (frames_consumed == frames_consumed_) {
SbTime time_elapsed = SbTimeGetMonotonicNow() - start;
if (time_elapsed >= kTimeToTry) {
return false;
}
SbTime time_to_wait = kTimeToTry - time_elapsed;
condition_variable_.WaitTimed(time_to_wait);
}
return true;
}
bool AudioSinkTestEnvironment::WaitUntilAllFramesAreConsumed() {
const int kMaximumFramesPerAppend = 1024;
ScopedLock lock(mutex_);
is_eos_reached_ = true;
int frames_appended_before_eos = frames_appended_;
SbTimeMonotonic start = SbTimeGetMonotonicNow();
int silence_frames_appended = 0;
while (frames_consumed_ < frames_appended_before_eos) {
SbTime time_elapsed = SbTimeGetMonotonicNow() - start;
if (time_elapsed >= kTimeToTry) {
return false;
}
SbTime time_to_wait = kTimeToTry - time_elapsed;
// Append silence as some audio sink implementations won't be able to finish
// playback to the last frames filled.
int silence_frames_to_append =
std::min({GetFrameBufferFreeSpaceInFrames_Locked(),
frame_buffers_.frames_per_channel() - silence_frames_appended,
kMaximumFramesPerAppend});
AppendFrame_Locked(silence_frames_to_append);
silence_frames_appended += silence_frames_to_append;
condition_variable_.WaitTimed(time_to_wait);
}
return true;
}
void AudioSinkTestEnvironment::AppendFrame_Locked(int frames_to_append) {
mutex_.DCheckAcquired();
frames_appended_ += frames_to_append;
}
int AudioSinkTestEnvironment::GetFrameBufferFreeSpaceInFrames_Locked() const {
mutex_.DCheckAcquired();
int frames_in_buffer = frames_appended_ - frames_consumed_;
return frame_buffers_.frames_per_channel() - frames_in_buffer;
}
void AudioSinkTestEnvironment::OnUpdateSourceStatus(int* frames_in_buffer,
int* offset_in_frames,
bool* is_playing,
bool* is_eos_reached) {
ScopedLock lock(mutex_);
*frames_in_buffer = frames_appended_ - frames_consumed_;
*offset_in_frames = frames_consumed_ % frame_buffers_.frames_per_channel();
*is_playing = is_playing_;
*is_eos_reached = is_eos_reached_;
++update_source_status_call_count_;
condition_variable_.Signal();
}
#if SB_API_VERSION >= 12 || !SB_HAS(ASYNC_AUDIO_FRAMES_REPORTING)
void AudioSinkTestEnvironment::OnConsumeFrames(int frames_consumed) {
ScopedLock lock(mutex_);
frames_consumed_ += frames_consumed;
condition_variable_.Signal();
}
#else // SB_API_VERSION >= 12 ||!SB_HAS(ASYNC_AUDIO_FRAMES_REPORTING)
void AudioSinkTestEnvironment::OnConsumeFrames(int frames_consumed,
SbTime frames_consumed_at) {
SB_DCHECK(frames_consumed_at <= SbTimeGetMonotonicNow());
ScopedLock lock(mutex_);
frames_consumed_ += frames_consumed;
condition_variable_.Signal();
}
#endif // SB_API_VERSION >= 12 || !SB_HAS(ASYNC_AUDIO_FRAMES_REPORTING)
// static
void AudioSinkTestEnvironment::UpdateSourceStatusFunc(int* frames_in_buffer,
int* offset_in_frames,
bool* is_playing,
bool* is_eos_reached,
void* context) {
AudioSinkTestEnvironment* environment =
reinterpret_cast<AudioSinkTestEnvironment*>(context);
environment->OnUpdateSourceStatus(frames_in_buffer, offset_in_frames,
is_playing, is_eos_reached);
}
#if SB_API_VERSION >= 12 || !SB_HAS(ASYNC_AUDIO_FRAMES_REPORTING)
// static
void AudioSinkTestEnvironment::ConsumeFramesFunc(int frames_consumed,
void* context) {
AudioSinkTestEnvironment* environment =
reinterpret_cast<AudioSinkTestEnvironment*>(context);
environment->OnConsumeFrames(frames_consumed);
}
#else // SB_API_VERSION >= 12 || !SB_HAS(ASYNC_AUDIO_FRAMES_REPORTING)
// static
void AudioSinkTestEnvironment::ConsumeFramesFunc(int frames_consumed,
SbTime frames_consumed_at,
void* context) {
AudioSinkTestEnvironment* environment =
reinterpret_cast<AudioSinkTestEnvironment*>(context);
frames_consumed_at = SbTimeGetMonotonicNow();
environment->OnConsumeFrames(frames_consumed, frames_consumed_at);
}
#endif // SB_API_VERSION >= 12 || !SB_HAS(ASYNC_AUDIO_FRAMES_REPORTING)
} // namespace nplb
} // namespace starboard