Added framer to cast.

media/cast/framer/frame_buffer.h

Index: media/cast/framer/frame_buffer.h
diff --git a/media/cast/framer/frame_buffer.h b/media/cast/framer/frame_buffer.h
new file mode 100644
index 0000000000000000000000000000000000000000..d2b52cb409ed758d9154a04c9cfd1960dc7d751b
--- /dev/null
+++ b/media/cast/framer/frame_buffer.h
@@ -0,0 +1,54 @@
+// Copyright 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_CAST_FRAMER_FRAME_BUFFER
+#define MEDIA_CAST_FRAMER_FRAME_BUFFER
+
+#include <map>
+#include <vector>
+
+#include "media/cast/cast_config.h"
+#include "media/cast/rtp_common/rtp_defines.h"
+
+namespace media {
+namespace cast {
+
+typedef std::map<uint16, std::vector<uint8> > PacketMap;
+
+class FrameBuffer {
+ public:
+  FrameBuffer();
+  ~FrameBuffer();
+  void InsertPacket(const uint8* payload_data,
+                    int payload_size,
+                    const RtpCastHeader& rtp_header);
+  bool Complete() const;
+
+  bool GetEncodedAudioFrame(EncodedAudioFrame* audio_frame,
+                            uint32* rtp_timestamp) const;
+
+  bool GetEncodedVideoFrame(EncodedVideoFrame* video_frame,
+                            uint32* rtp_timestamp) const;
+
+  bool is_key_frame() const { return is_key_frame_; }
+  uint8 frame_id() const { return frame_id_; }
+  uint8 last_referenced_frame_id() const { return last_referenced_frame_id_; }
+
+ private:
+  uint8 frame_id_;
+  uint16 max_packet_id_;
+  uint16 num_packets_received_;
+  bool is_key_frame_;
+  int total_data_size_;
+  uint8 last_referenced_frame_id_;
+  uint32 rtp_timestamp_;
+  PacketMap packets_;
+
+  DISALLOW_COPY_AND_ASSIGN(FrameBuffer);
+};
+
+}  // namespace cast
+}  // namespace media
+
+#endif  // MEDIA_CAST_FRAMER_FRAME_BUFFER