Audio output debug recording.

media/audio/pulse/pulse_output.h

 // 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.
 //
 // Creates an audio output stream based on the PulseAudio asynchronous API;
 // specifically using the pa_threaded_mainloop model.
 //
 // If the stream is successfully opened, Close() must be called before the
 // stream is deleted as Close() is responsible for ensuring resource cleanup
 // occurs.
@@ skipping 17 matching lines @@
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "media/audio/audio_io.h"
 #include "media/base/audio_parameters.h"
 
 struct pa_context;
 struct pa_stream;
 struct pa_threaded_mainloop;
 
 namespace media {
+
+class AudioDebugRecordingHelper;
 class AudioManagerBase;
 
 class PulseAudioOutputStream : public AudioOutputStream {
  public:
   PulseAudioOutputStream(const AudioParameters& params,
                          const std::string& device_id,
                          AudioManagerBase* manager);
 
   ~PulseAudioOutputStream() override;
 
   // Implementation of AudioOutputStream.
   bool Open() override;
   void Close() override;
   void Start(AudioSourceCallback* callback) override;
   void Stop() override;
   void SetVolume(double volume) override;
   void GetVolume(double* volume) override;
+  void EnableDebugRecording(const base::FilePath& file_name) override;
+  void DisableDebugRecording() override;
 
  private:
   // Called by PulseAudio when |pa_stream_| change state.  If an unexpected
   // failure state change happens and |source_callback_| is set
   // this method will forward the error via OnError().
   static void StreamNotifyCallback(pa_stream* s, void* p_this);
 
   // Called by PulseAudio when it needs more audio data.
   static void StreamRequestCallback(pa_stream* s, size_t len, void* p_this);
 
@@ skipping 21 matching lines @@
   // Float representation of volume from 0.0 to 1.0.
   float volume_;
 
   // Callback to audio data source.  Must only be modified while holding a lock
   // on |pa_mainloop_| via pa_threaded_mainloop_lock().
   AudioSourceCallback* source_callback_;
 
   // Container for retrieving data from AudioSourceCallback::OnMoreData().
   std::unique_ptr<AudioBus> audio_bus_;
 
+  // Used for audio debug recordings.
+  std::unique_ptr<AudioDebugRecordingHelper> debug_recording_helper_;
+
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(PulseAudioOutputStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_PULSE_PULSE_OUTPUT_H_