Cast: Add capabity to send Receiver and Sender log messages over RTCP.

media/cast/rtcp/rtcp_utility.h

 // 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_UTILITY_H_
 #define MEDIA_CAST_RTCP_RTCP_UTILITY_H_
 
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_defines.h"
 #include "media/cast/rtcp/rtcp_defines.h"
 
 namespace media {
 namespace cast {
 
 static const int kRtcpRpsiDataSize = 30;
 
 // RFC 3550 page 44, including end null.
 static const size_t kRtcpCnameSize = 256;
 static const int kRtcpMaxNumberOfRembFeedbackSsrcs = 255;
 
 static const uint32 kRemb = ('R' << 24) + ('E' << 16) + ('M' << 8) + 'B';
 static const uint32 kCast = ('C' << 24) + ('A' << 16) + ('S' << 8) + 'T';
 
+static const uint8 kSenderLogSubtype = 1;
+static const uint8 kReceiverLogSubtype = 2;
+
+static const size_t kRtcpMaxReceiverLogMessages = 256;
+static const size_t kRtcpMaxNackFields = 253;
+static const size_t kRtcpMaxCastLossFields = 100;

[mikhal, 2013/11/21 16:43:20]

why 100?

[pwestin, 2013/11/22 18:50:47]

I just moved this to the h file to be able to re-use it. Did not change the
value. I guess that we did not want to NACK more than  100 packets at once.  

+
 struct RtcpFieldReceiverReport {
   // RFC 3550.
   uint32 sender_ssrc;
   uint8 number_of_report_blocks;
 };
 
 struct RtcpFieldSenderReport {
   // RFC 3550.
   uint32 sender_ssrc;
   uint8  number_of_report_blocks;
@@ skipping 278 matching lines @@
   RtcpFieldTypes field_type_;
   RtcpField field_;
 
   DISALLOW_COPY_AND_ASSIGN(RtcpParser);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_RTCP_RTCP_UTILITY_H_