Add initial implementation of SourceBufferStream

media/base/data_buffer.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.
 
 // A simple implementation of Buffer that takes ownership of the given data
 // pointer.
 //
 // DataBuffer assumes that memory was allocated with new uint8[].
 
 #ifndef MEDIA_BASE_DATA_BUFFER_H_
 #define MEDIA_BASE_DATA_BUFFER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "media/base/buffers.h"
 
 namespace media {
 
 class MEDIA_EXPORT DataBuffer : public Buffer {
  public:
   // Assumes valid data of size |buffer_size|.
   DataBuffer(scoped_array<uint8> buffer, int buffer_size);
 
   // Allocates buffer of size |buffer_size|. If |buffer_size| is 0, |data_| is
   // set to a NULL ptr.
   explicit DataBuffer(int buffer_size);
+  // TODO(vrk): Only ChunkDemuxer and friends care about keyframes.
+  // Put keyframe stuff inside a derived class of Buffer?

[acolwell GONE FROM CHROMIUM, 2012/04/29 18:13:06]

Remove comment since we are already making this decision right now.

[vrk (LEFT CHROMIUM), 2012/05/01 22:51:13]

Done.

+  DataBuffer(int buffer_size, bool is_keyframe);
 
   // Create a DataBuffer whose |data_| is copied from |data|.
   static scoped_refptr<DataBuffer> CopyFrom(const uint8* data, int size);
 
   // Buffer implementation.
   virtual const uint8* GetData() const OVERRIDE;
   virtual int GetDataSize() const OVERRIDE;
   virtual const DecryptConfig* GetDecryptConfig() const OVERRIDE;
 
   // Returns a read-write pointer to the buffer data.
@@ skipping 16 matching lines @@
   int buffer_size_;
   int data_size_;
   scoped_ptr<DecryptConfig> decrypt_config_;
 
   DISALLOW_COPY_AND_ASSIGN(DataBuffer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_DATA_BUFFER_H_