Log audio system used to WebRTC log.

chromecast/media/audio/cast_audio_manager.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chromecast/media/audio/cast_audio_manager.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
 #include "chromecast/media/audio/cast_audio_mixer.h"
 #include "chromecast/media/audio/cast_audio_output_stream.h"
 #include "chromecast/media/cma/backend/media_pipeline_backend_manager.h"
 
 namespace {
 // TODO(alokp): Query the preferred value from media backend.
 const int kDefaultSampleRate = 48000;
 
 // Define bounds for the output buffer size (in frames).
 // Note: These values are copied from AudioManagerPulse implementation.
 // TODO(alokp): Query the preferred value from media backend.
 static const int kMinimumOutputBufferSize = 512;
 static const int kMaximumOutputBufferSize = 8192;
 static const int kDefaultOutputBufferSize = 2048;
+
+const char kAudioManagerName[] = "Cast";

[DaleCurtis, 2016/12/01 17:49:38]

If there's only a single user of this it's generally preferable to inline it
into the return statement.

[Henrik Grunell, 2016/12/02 08:40:27]

Done.

 }  // namespace
 
 namespace chromecast {
 namespace media {
 
 CastAudioManager::CastAudioManager(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
     ::media::AudioLogFactory* audio_log_factory,
     MediaPipelineBackendManager* backend_manager)
@@ skipping 41 matching lines @@
 
 ::media::AudioParameters CastAudioManager::GetInputStreamParameters(
     const std::string& device_id) {
   LOG(WARNING) << "No support for input audio devices";
   // Need to send a valid AudioParameters object even when it will unused.
   return ::media::AudioParameters(
       ::media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
       ::media::CHANNEL_LAYOUT_STEREO, 48000, 16, 1024);
 }
 
+const char* CastAudioManager::GetName() {
+  return kAudioManagerName;
+}
+
 std::unique_ptr<MediaPipelineBackend>
 CastAudioManager::CreateMediaPipelineBackend(
     const MediaPipelineDeviceParams& params) {
   return backend_manager_->CreateMediaPipelineBackend(params);
 }
 
 void CastAudioManager::ReleaseOutputStream(::media::AudioOutputStream* stream) {
   // If |stream| is |mixer_output_stream_|, we should not use
   // AudioManagerBase::ReleaseOutputStream as we do not want the release
   // function to decrement |AudioManagerBase::num_output_streams_|. This is
@@ skipping 79 matching lines @@
   DCHECK(!mixer_output_stream_);  // Only allow 1 |mixer_output_stream_|.
 
   // Keep a reference to this stream for proper behavior on
   // CastAudioManager::ReleaseOutputStream.
   mixer_output_stream_.reset(new CastAudioOutputStream(params, this));
   return mixer_output_stream_.get();
 }
 
 }  // namespace media
 }  // namespace chromecast