| // Copyright (c) 2016 Samsung Electronics Co., Ltd 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/audio_sink.h" |
| #include "starboard/log.h" |
| #include "starboard/mutex.h" |
| #include "starboard/tizen/shared/audio/audio_sink_private.h" |
| |
| #define CHECK_CAPI_AUDIO_ERROR(func) \ |
| if (capi_ret != AUDIO_IO_ERROR_NONE) { \ |
| SB_DLOG(ERROR) << "[MEDIA] " #func " (" << capi_ret << ", " \ |
| << GetCAPIErrorString(capi_ret) << ")"; \ |
| return; \ |
| } |
| |
| const int kSampleByte = 2; |
| |
| SbAudioSinkPrivate::SbAudioSinkPrivate( |
| int channels, |
| int sampling_frequency_hz, |
| SbMediaAudioSampleType audio_sample_type, |
| SbMediaAudioFrameStorageType audio_frame_storage_type, |
| SbAudioSinkFrameBuffers frame_buffers, |
| int frames_per_channel, |
| SbAudioSinkUpdateSourceStatusFunc update_source_status_func, |
| SbAudioSinkConsumeFramesFunc consume_frames_func, |
| void* context) |
| : channels_(channels), |
| sampling_frequency_hz_(sampling_frequency_hz), |
| audio_sample_type_(audio_sample_type), |
| audio_frame_storage_type_(audio_frame_storage_type), |
| frame_buffers_(frame_buffers), |
| frames_per_channel_(frames_per_channel), |
| update_source_status_func_(update_source_status_func), |
| consume_frames_func_(consume_frames_func), |
| context_(context), |
| destroying_(false), |
| is_paused_(true) { |
| SB_DLOG(INFO) << "[MEDIA] SbAudioSinkPrivate : " |
| << "channels " << channels << ", frequency " |
| << sampling_frequency_hz << ", sample_type " |
| << audio_sample_type << ", storage_type " |
| << audio_frame_storage_type << ", frame_buffers " |
| << static_cast<int>(frame_buffers) << ", frame_buff_sz " |
| << frames_per_channel; |
| |
| int capi_ret; |
| capi_ret = audio_out_create_new(sampling_frequency_hz, AUDIO_CHANNEL_STEREO, |
| AUDIO_SAMPLE_TYPE_S16_LE, // kSampleByte = 2 |
| &capi_audio_out_); |
| CHECK_CAPI_AUDIO_ERROR(audio_out_create_new); |
| |
| capi_ret = audio_out_set_interrupted_cb(capi_audio_out_, |
| OnCAPIAudioIOInterrupted_CB, this); |
| CHECK_CAPI_AUDIO_ERROR(audio_out_set_interrupted_cb); |
| |
| // Starts the thread |
| audio_out_thread_ = |
| SbThreadCreate(0, kSbThreadPriorityRealTime, kSbThreadNoAffinity, true, |
| "tizen_audio_out", AudioSinkThreadProc_CB, this); |
| SB_DCHECK(SbThreadIsValid(audio_out_thread_)); |
| } |
| |
| SbAudioSinkPrivate::~SbAudioSinkPrivate() { |
| // Stop the thread |
| { |
| starboard::ScopedLock lock(mutex_); |
| destroying_ = true; |
| } |
| if (SbThreadIsValid(audio_out_thread_)) { |
| SB_DLOG(INFO) << "[MEDIA] wait for audio sink thread exit"; |
| SbThreadJoin(audio_out_thread_, NULL); |
| } else { |
| SB_DLOG(INFO) << "[MEDIA] audio sink thread is invalid. skip waiting"; |
| } |
| |
| // destroy capi audio |
| if (capi_audio_out_) { |
| int ret = audio_out_destroy(capi_audio_out_); |
| if (ret != AUDIO_IO_ERROR_NONE) { |
| SB_DLOG(ERROR) << "audio_out_destroy failed (" << ret << ")"; |
| } |
| } |
| } |
| |
| bool SbAudioSinkPrivate::IsValid() { |
| return SbThreadIsValid(audio_out_thread_); |
| } |
| |
| // static callbacks |
| void SbAudioSinkPrivate::OnCAPIAudioIOInterrupted_CB( |
| audio_io_interrupted_code_e code, |
| void* user_data) { |
| SbAudioSinkPrivate* audio_sink = |
| reinterpret_cast<SbAudioSinkPrivate*>(user_data); |
| if (audio_sink) { |
| audio_sink->OnCAPIAudioIOInterrupted(code); |
| } |
| } |
| void SbAudioSinkPrivate::OnCAPIAudioStreamWrite_CB( |
| audio_out_h handle, |
| size_t nbytes, |
| void* user_data) { // not used |
| SbAudioSinkPrivate* audio_sink = |
| reinterpret_cast<SbAudioSinkPrivate*>(user_data); |
| if (audio_sink) { |
| audio_sink->OnCAPIAudioStreamWrite(handle, nbytes); |
| } |
| } |
| void* SbAudioSinkPrivate::AudioSinkThreadProc_CB(void* context) { |
| SbAudioSinkPrivate* audio_sink = |
| reinterpret_cast<SbAudioSinkPrivate*>(context); |
| if (audio_sink) { |
| return audio_sink->AudioSinkThreadProc(); |
| } |
| return NULL; |
| } |
| |
| const char* SbAudioSinkPrivate::GetCAPIErrorString(int ret) { |
| // TODO : Get CAPI error and print log |
| return "Unknown"; |
| } |
| |
| void SbAudioSinkPrivate::OnCAPIAudioIOInterrupted( |
| audio_io_interrupted_code_e code) { |
| SB_DLOG(WARNING) << "Play interrupted: audio_io_interrupted_code_e : " |
| << code; |
| } |
| |
| void SbAudioSinkPrivate::OnCAPIAudioStreamWrite(audio_out_h handle, |
| size_t nbytes) { |
| SB_DLOG(INFO) << "[MEDIA] OnAudioStreamWrite (not used) - request " << nbytes; |
| } |
| |
| void* SbAudioSinkPrivate::AudioSinkThreadProc() { |
| void* buf; |
| int bytes_to_fill; |
| int bytes_written; |
| int bytes_per_frame = kSampleByte; |
| int consumed_frames; |
| |
| SB_DLOG(INFO) << "[MEDIA] sink thread started"; |
| |
| for (;;) { |
| { |
| starboard::ScopedLock lock(mutex_); |
| if (destroying_) { |
| break; |
| } |
| } |
| |
| int frames_in_buffer, offset_in_frames; |
| bool is_playing, is_eos_reached; |
| update_source_status_func_(&frames_in_buffer, &offset_in_frames, |
| &is_playing, &is_eos_reached, context_); |
| |
| if (is_playing) { |
| buf = reinterpret_cast<uint8_t*>(frame_buffers_[0]) + |
| offset_in_frames * bytes_per_frame; |
| if (offset_in_frames + frames_in_buffer <= frames_per_channel_) { |
| bytes_to_fill = frames_in_buffer * bytes_per_frame; |
| } else { |
| bytes_to_fill = |
| (frames_per_channel_ - offset_in_frames) * bytes_per_frame; |
| } |
| |
| if (is_paused_) { |
| // audio_out_resume(capi_audio_out_); |
| audio_out_prepare(capi_audio_out_); |
| is_paused_ = false; |
| SB_DLOG(INFO) << "[MEDIA] audio_out_resume"; |
| } |
| |
| bytes_written = audio_out_write(capi_audio_out_, buf, bytes_to_fill); |
| |
| if (bytes_written < 0) { |
| SB_DLOG(ERROR) << "[MEDIA] audio_out_write error (" << bytes_written |
| << ", " << GetCAPIErrorString(bytes_written) << ")"; |
| break; |
| } |
| consumed_frames = bytes_written / bytes_per_frame; |
| |
| // SbThreadSleep(consumed_frames * kSbTimeSecond / |
| // sampling_frequency_hz_); |
| consume_frames_func_(consumed_frames, context_); |
| } else { |
| if (!is_paused_) { |
| audio_out_unprepare(capi_audio_out_); |
| is_paused_ = true; |
| SB_DLOG(INFO) << "[MEDIA] audio_out_pause"; |
| } |
| // Wait for five millisecond if we are paused. |
| SbThreadSleep(kSbTimeMillisecond * 5); |
| } |
| } |
| |
| SB_DLOG(INFO) << "[MEDIA] sink thread exited"; |
| return NULL; |
| } |