Switch the input code to use AudioBlockFifo

media/audio/pulse/pulse_input.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.
 
 #ifndef MEDIA_AUDIO_PULSE_PULSE_INPUT_H_
 #define MEDIA_AUDIO_PULSE_PULSE_INPUT_H_
 
 #include <string>
 
 #include "base/threading/thread_checker.h"
 #include "media/audio/agc_audio_stream.h"
 #include "media/audio/audio_device_name.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_parameters.h"
+#include "media/base/audio_block_fifo.h"
 
 struct pa_context;
 struct pa_source_info;
 struct pa_stream;
 struct pa_threaded_mainloop;
 
 namespace media {
 
 class AudioManagerPulse;
-class SeekableBuffer;
 
 class PulseAudioInputStream : public AgcAudioStream<AudioInputStream> {
  public:
   PulseAudioInputStream(AudioManagerPulse* audio_manager,
                         const std::string& device_name,
                         const AudioParameters& params,
                         pa_threaded_mainloop* mainloop,
                         pa_context* context);
 
   virtual ~PulseAudioInputStream();
@@ skipping 19 matching lines @@
 
   AudioManagerPulse* audio_manager_;
   AudioInputCallback* callback_;
   std::string device_name_;
   AudioParameters params_;
   int channels_;
   double volume_;
   bool stream_started_;
 
   // Holds the data from the OS.
-  scoped_ptr<media::SeekableBuffer> buffer_;
-
-  // Temporary storage for recorded data. It gets a packet of data from
-  // |buffer_| and deliver the data to OnData() callback.
-  scoped_ptr<uint8[]> audio_data_buffer_;
+  AudioBlockFifo fifo_;
 
   // PulseAudio API structs.
   pa_threaded_mainloop* pa_mainloop_; // Weak.
   pa_context* pa_context_;  // Weak.
   pa_stream* handle_;
 
   // Flag indicating the state of the context has been changed.
   bool context_state_changed_;
 
-  scoped_ptr<AudioBus> audio_bus_;
-
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(PulseAudioInputStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_PULSE_PULSE_INPUT_H_