Reland: Use actual audio channel count in Spitzer audio decoder

media/base/android/media_codec_bridge.h

 // Copyright (c) 2013 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_BASE_ANDROID_MEDIA_CODEC_BRIDGE_H_
 #define MEDIA_BASE_ANDROID_MEDIA_CODEC_BRIDGE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 138 matching lines @@
 
   // Returns the buffer to the codec. If you previously specified a surface when
   // configuring this video decoder you can optionally render the buffer.
   virtual void ReleaseOutputBuffer(int index, bool render) = 0;
 
   // Returns an input buffer's base pointer and capacity.
   virtual MediaCodecStatus GetInputBuffer(int input_buffer_index,
                                           uint8_t** data,
                                           size_t* capacity) = 0;
 
-  // Copy |num| bytes from output buffer |index|'s |offset| into the memory
+  // Gives the access to buffer's data which is referenced by |index| and
+  // |offset|. The size of available data for reading is written to |*capacity|
+  // and the address is written to |*addr|.
+  // Returns MEDIA_CODEC_ERROR if a error occurs, or MEDIA_CODEC_OK otherwise.
+  virtual MediaCodecStatus GetOutputBufferAddress(int index,
+                                                  size_t offset,
+                                                  const uint8_t** addr,
+                                                  size_t* capacity) = 0;
+
+  // Copies |num| bytes from output buffer |index|'s |offset| into the memory
   // region pointed to by |dst|. To avoid overflows, the size of both source
   // and destination must be at least |num| bytes, and should not overlap.
   // Returns MEDIA_CODEC_ERROR if an error occurs, or MEDIA_CODEC_OK otherwise.
-  virtual MediaCodecStatus CopyFromOutputBuffer(int index,
-                                                size_t offset,
-                                                void* dst,
-                                                size_t num) = 0;
+  MediaCodecStatus CopyFromOutputBuffer(int index,
+                                        size_t offset,
+                                        void* dst,
+                                        size_t num);
 
  protected:
   MediaCodecBridge();
 
   // Fills a particular input buffer; returns false if |data_size| exceeds the
   // input buffer's capacity (and doesn't touch the input buffer in that case).
   bool FillInputBuffer(int index,
                        const uint8_t* data,
                        size_t data_size) WARN_UNUSED_RESULT;
 
   DISALLOW_COPY_AND_ASSIGN(MediaCodecBridge);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_CODEC_BRIDGE_H_