1 files changed, 111 insertions, 0 deletions
diff --git a/chromium/media/cast/rtcp/rtcp_sender.h b/chromium/media/cast/rtcp/rtcp_sender.h
new file mode 100644
index 00000000000..7dbbc0f95b5
--- /dev/null
+++ b/chromium/media/cast/rtcp/rtcp_sender.h
@@ -0,0 +1,111 @@
+// 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_RTCP_RTCP_SENDER_H_
+#define MEDIA_CAST_RTCP_RTCP_SENDER_H_
+
+#include <list>
+#include <string>
+
+#include "media/cast/cast_config.h"
+#include "media/cast/cast_defines.h"
+#include "media/cast/rtcp/rtcp.h"
+#include "media/cast/rtcp/rtcp_defines.h"
+
+namespace media {
+namespace cast {
+
+class RtcpSender {
+ public:
+  RtcpSender(PacedPacketSender* const paced_packet_sender,
+             uint32 sending_ssrc,
+             const std::string& c_name);
+
+  virtual ~RtcpSender();
+
+  void SendRtcp(uint32 packet_type_flags,
+                const RtcpSenderInfo* sender_info,
+                const RtcpReportBlock* report_block,
+                uint32 pli_remote_ssrc,
+                const RtcpDlrrReportBlock* dlrr,
+                const RtcpReceiverReferenceTimeReport* rrtr,
+                const RtcpCastMessage* cast_message);
+
+  enum RtcpPacketType {
+    kRtcpSr     = 0x0002,
+    kRtcpRr     = 0x0004,
+    kRtcpBye    = 0x0008,
+    kRtcpPli    = 0x0010,
+    kRtcpNack   = 0x0020,
+    kRtcpFir    = 0x0040,
+    kRtcpSrReq  = 0x0200,
+    kRtcpDlrr   = 0x0400,
+    kRtcpRrtr   = 0x0800,
+    kRtcpRpsi   = 0x8000,
+    kRtcpRemb   = 0x10000,
+    kRtcpCast   = 0x20000,
+  };
+
+ private:
+  void BuildSR(const RtcpSenderInfo& sender_info,
+               const RtcpReportBlock* report_block,
+               std::vector<uint8>* packet) const;
+
+  void BuildRR(const RtcpReportBlock* report_block,
+               std::vector<uint8>* packet) const;
+
+  void AddReportBlocks(const RtcpReportBlock& report_block,
+                       std::vector<uint8>* packet) const;
+
+  void BuildSdec(std::vector<uint8>* packet) const;
+
+  void BuildPli(uint32 remote_ssrc,
+                std::vector<uint8>* packet) const;
+
+  void BuildRemb(const RtcpRembMessage* remb,
+                 std::vector<uint8>* packet) const;
+
+  void BuildRpsi(const RtcpRpsiMessage* rpsi,
+                 std::vector<uint8>* packet) const;
+
+  void BuildNack(const RtcpNackMessage* nack,
+                 std::vector<uint8>* packet) const;
+
+  void BuildBye(std::vector<uint8>* packet) const;
+
+  void BuildDlrrRb(const RtcpDlrrReportBlock* dlrr,
+                   std::vector<uint8>* packet) const;
+
+  void BuildRrtr(const RtcpReceiverReferenceTimeReport* rrtr,
+                 std::vector<uint8>* packet) const;
+
+  void BuildCast(const RtcpCastMessage* cast_message,
+                 std::vector<uint8>* packet) const;
+
+  inline void BitrateToRembExponentBitrate(uint32 bitrate,
+                                           uint8* exponent,
+                                           uint32* mantissa) const {
+    // 6 bit exponent and a 18 bit mantissa.
+    *exponent = 0;
+    for (int i = 0; i < 64; ++i) {
+      if (bitrate <= (262143u << i)) {
+        *exponent = i;
+        break;
+      }
+    }
+    *mantissa = (bitrate >> *exponent);
+  }
+
+  const uint32 ssrc_;
+  const std::string c_name_;
+
+  // Not owned by this class.
+  PacedPacketSender* transport_;
+
+  DISALLOW_COPY_AND_ASSIGN(RtcpSender);
+};
+
+}  // namespace cast
+}  // namespace media
+#endif  // MEDIA_CAST_RTCP_RTCP_SENDER_H_