Audio output debug recording.

media/audio/audio_manager_base.cc

 // Copyright (c) 2012 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 "media/audio/audio_manager_base.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 60 matching lines @@
             dispatcher_->output_device_id == dispatcher_in->output_device_id);
   }
 
  private:
   const DispatcherParams* dispatcher_;
 };
 
 AudioManagerBase::AudioManagerBase(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
-    AudioLogFactory* audio_log_factory)
+    AudioLogFactory* audio_log_factory,
+    CreateAudioFileWriterCallback create_audio_file_writer_callback)
     : AudioManager(std::move(task_runner), std::move(worker_task_runner)),
       max_num_output_streams_(kDefaultMaxOutputStreams),
       max_num_input_streams_(kDefaultMaxInputStreams),
       num_output_streams_(0),
       // TODO(dalecurtis): Switch this to an base::ObserverListThreadSafe, so we
-      // don't
-      // block the UI thread when swapping devices.
+      // don't block the UI thread when swapping devices.
       output_listeners_(
           base::ObserverList<AudioDeviceListener>::NOTIFY_EXISTING_ONLY),
-      audio_log_factory_(audio_log_factory) {}
+      audio_log_factory_(audio_log_factory),
+      create_audio_file_writer_callback_(
+          std::move(create_audio_file_writer_callback)) {
+  CHECK(!create_audio_file_writer_callback_.Equals(
+      CreateAudioFileWriterCallback()));
+}
 
 AudioManagerBase::~AudioManagerBase() {
   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
 
   // All the output streams should have been deleted.
   CHECK_EQ(0, num_output_streams_);
   // All the input streams should have been deleted.
   CHECK(input_streams_.empty());
 }
 
@@ skipping 176 matching lines @@
                    CompareByParams(dispatcher_params));
   if (it != output_dispatchers_.end()) {
     delete dispatcher_params;
     return (*it)->dispatcher->CreateStreamProxy();
   }
 
   const base::TimeDelta kCloseDelay =
       base::TimeDelta::FromSeconds(kStreamCloseDelaySeconds);
   std::unique_ptr<AudioOutputDispatcher> dispatcher;
   if (output_params.format() != AudioParameters::AUDIO_FAKE) {
-    dispatcher = base::MakeUnique<AudioOutputResampler>(
-        this, params, output_params, output_device_id, kCloseDelay);
+    std::unique_ptr<AudioOutputResampler> resampler =
+        base::MakeUnique<AudioOutputResampler>(this, params, output_params,
+                                               output_device_id, kCloseDelay);
+    output_resamplers_.insert(resampler.get());
+
+    // Debug recording is enabled if the file name is non-empty. If so, also
+    // enable it on the new resampler.
+    if (!debug_recording_base_file_name_.empty()) {
+      resampler->EnableDebugRecording(GetDebugRecordingFileNameWithExtension(
+          debug_recording_base_file_name_));
+    }
+
+    dispatcher = std::move(resampler);
   } else {
     dispatcher = base::MakeUnique<AudioOutputDispatcherImpl>(
         this, output_params, output_device_id, kCloseDelay);
   }
 
   dispatcher_params->dispatcher = std::move(dispatcher);
   output_dispatchers_.push_back(dispatcher_params);
   return dispatcher_params->dispatcher->CreateStreamProxy();
 }
 
@@ skipping 25 matching lines @@
   // TODO(xians) : Have a clearer destruction path for the AudioInputStream.
   CHECK_EQ(1u, input_streams_.erase(stream));
   delete stream;
 }
 
 void AudioManagerBase::Shutdown() {
   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
 
   // Close all output streams.
   output_dispatchers_.clear();
+  output_resamplers_.clear();
 
 #if defined(OS_MACOSX)
   // On mac, AudioManager runs on the main thread, loop for which stops
   // processing task queue at this point. So even if tasks to close the
   // streams are enqueued, they would not run leading to CHECKs getting hit
   // in the destructor about open streams. Close them explicitly here.
   // crbug.com/608049.
   for (auto iter = input_streams_.begin(); iter != input_streams_.end();) {
     // Note: Closing the stream will invalidate the iterator.
     // Increment the iterator before closing the stream.
@@ skipping 81 matching lines @@
     return buffer_size;
 
   return 0;
 }
 
 std::unique_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
     AudioLogFactory::AudioComponent component) {
   return audio_log_factory_->CreateAudioLog(component);
 }
 
+std::unique_ptr<AudioFileWriter> AudioManagerBase::CreateAudioFileWriter(
+    const AudioParameters& params) {
+  return create_audio_file_writer_callback_.Run(params);
+}
+
+void AudioManagerBase::EnableOutputDebugRecording(
+    const base::FilePath& base_file_name) {
+  DCHECK(GetTaskRunner()->BelongsToCurrentThread());
+  for (auto it : output_resamplers_) {
+    it->EnableDebugRecording(
+        GetDebugRecordingFileNameWithExtension(base_file_name));
+  }
+  debug_recording_base_file_name_ = base_file_name;
+}
+
+void AudioManagerBase::DisableOutputDebugRecording() {
+  DCHECK(GetTaskRunner()->BelongsToCurrentThread());
+  for (auto it : output_resamplers_)
+    it->DisableDebugRecording();
+  debug_recording_base_file_name_.clear();
+}
+
+base::FilePath AudioManagerBase::GetDebugRecordingFileNameWithExtension(
+    const base::FilePath& file_name) {
+  return file_name.AddExtension("output");
+}
+
 void AudioManagerBase::SetMaxStreamCountForTesting(int max_input,
                                                    int max_output) {
   max_num_output_streams_ = max_output;
   max_num_input_streams_ = max_input;
 }
 
 }  // namespace media