Combine bytes-decoded notification with memory usage and frame count.

media/renderers/audio_renderer_impl.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.
 
 // Audio rendering unit utilizing an AudioRendererSink to output data.
 //
 // This class lives inside three threads during it's lifetime, namely:
 // 1. Render thread
 //    Where the object is created.
 // 2. Media thread (provided via constructor)
@@ skipping 103 matching lines @@
   //         |                            | Flush()
   //         `---------> kPlaying --------'
   enum State {
     kUninitialized,
     kInitializing,
     kFlushing,
     kFlushed,
     kPlaying
   };
 
+  // Callback for audio decoder to report statistics.
+  void BytesDecoded(uint64_t bytes);
+
   // Callback from the audio decoder delivering decoded audio samples.
   void DecodedAudioReady(AudioBufferStream::Status status,
                          const scoped_refptr<AudioBuffer>& buffer);
 
   // Handles buffers that come out of |splicer_|.
   // Returns true if more buffers are needed.
   bool HandleSplicerBuffer_Locked(const scoped_refptr<AudioBuffer>& buffer);
 
   // Helper functions for DecodeStatus values passed to
   // DecodedAudioReady().
@@ skipping 90 matching lines @@
 
   // Callback provided during Initialize().
   PipelineStatusCB init_cb_;
 
   // Callback provided to Flush().
   base::Closure flush_cb_;
 
   // Overridable tick clock for testing.
   std::unique_ptr<base::TickClock> tick_clock_;
 
+  // Bytes decoded since the last time statistics was reported.
+  uint64_t bytes_decoded_;
+
   // Memory usage of |algorithm_| recorded during the last
   // HandleSplicerBuffer_Locked() call.
   int64_t last_audio_memory_usage_;
 
   // Sample rate of the last decoded audio buffer. Allows for detection of
   // sample rate changes due to implicit AAC configuration change.
   int last_decoded_sample_rate_;
 
   // After Initialize() has completed, all variables below must be accessed
   // under |lock_|. ------------------------------------------------------------
@@ skipping 55 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<AudioRendererImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_RENDERERS_AUDIO_RENDERER_IMPL_H_