1 files changed, 73 insertions, 0 deletions
diff --git a/chromium/media/cast/rtp_sender/rtp_packetizer/rtp_packetizer.h b/chromium/media/cast/rtp_sender/rtp_packetizer/rtp_packetizer.h
new file mode 100644
index 00000000000..63035d098db
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+++ b/chromium/media/cast/rtp_sender/rtp_packetizer/rtp_packetizer.h
@@ -0,0 +1,73 @@
+// 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_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_
+#define MEDIA_CAST_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_
+
+#include <cmath>
+#include <list>
+#include <map>
+
+#include "base/time/time.h"
+#include "media/cast/rtp_common/rtp_defines.h"
+#include "media/cast/rtp_sender/packet_storage/packet_storage.h"
+#include "media/cast/rtp_sender/rtp_packetizer/rtp_packetizer_config.h"
+
+namespace media {
+namespace cast {
+
+class PacedPacketSender;
+
+// This object is only called from the main cast thread.
+// This class break encoded audio and video frames into packets and add an RTP
+// header to each packet.
+class RtpPacketizer {
+ public:
+  RtpPacketizer(PacedPacketSender* transport,
+                PacketStorage* packet_storage,
+                RtpPacketizerConfig rtp_packetizer_config);
+  ~RtpPacketizer();
+
+  // The video_frame objects ownership is handled by the main cast thread.
+  void IncomingEncodedVideoFrame(const EncodedVideoFrame* video_frame,
+                                 const base::TimeTicks& capture_time);
+
+  // The audio_frame objects ownership is handled by the main cast thread.
+  void IncomingEncodedAudioFrame(const EncodedAudioFrame* audio_frame,
+                                 const base::TimeTicks& recorded_time);
+
+  bool LastSentTimestamp(base::TimeTicks* time_sent,
+                         uint32* rtp_timestamp) const;
+
+  // Return the next sequence number, and increment by one. Enables unique
+  // incremental sequence numbers for every packet (including retransmissions).
+  uint16 NextSequenceNumber();
+
+  int send_packets_count() { return send_packets_count_; }
+  int send_octet_count() { return send_octet_count_; }
+
+ private:
+  void Cast(bool is_key, uint8 reference_frame_id,
+    uint32 timestamp, std::vector<uint8> data);
+  void BuildCommonRTPheader(std::vector<uint8>* packet, bool marker_bit,
+      uint32 time_stamp);
+
+  RtpPacketizerConfig config_;
+  PacedPacketSender* transport_;
+  PacketStorage* packet_storage_;
+
+  base::TimeTicks time_last_sent_rtp_timestamp_;
+  uint16 sequence_number_;
+  uint32 rtp_timestamp_;
+  uint8 frame_id_;
+  uint16 packet_id_;
+
+  int send_packets_count_;
+  int send_octet_count_;
+};
+
+}  // namespace cast
+}  // namespace media
+
+#endif  // MEDIA_CAST_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_