Cast:Adding signaling and infrastructure for adjustable delay

media/cast/rtcp/test_rtcp_packet_builder.cc

 // 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.
 
 #include "media/cast/rtcp/test_rtcp_packet_builder.h"
 #include "base/logging.h"
 
 namespace media {
 namespace cast {
 
@@ skipping 169 matching lines @@
   big_endian_writer_.WriteU8('E');
   big_endian_writer_.WriteU8('M');
   big_endian_writer_.WriteU8('B');
   big_endian_writer_.WriteU8(1);  // Number of SSRCs.
   big_endian_writer_.WriteU8(1);  // BR Exp.
   //  BR Mantissa.
   big_endian_writer_.WriteU16(static_cast<uint16>(kTestRembBitrate / 2));
   big_endian_writer_.WriteU32(media_ssrc);
 }
 
-void TestRtcpPacketBuilder::AddCast(uint32 sender_ssrc, uint32 media_ssrc) {
+void TestRtcpPacketBuilder::AddCast(uint32 sender_ssrc,
+                                    uint32 media_ssrc,
+                                    uint16 target_delay_ms) {
   AddRtcpHeader(206, 15);
   big_endian_writer_.WriteU32(sender_ssrc);
   big_endian_writer_.WriteU32(media_ssrc);
   big_endian_writer_.WriteU8('C');
   big_endian_writer_.WriteU8('A');
   big_endian_writer_.WriteU8('S');
   big_endian_writer_.WriteU8('T');
   big_endian_writer_.WriteU8(kAckFrameId);
-  big_endian_writer_.WriteU8(3);   // Loss fields.
-  big_endian_writer_.WriteU16(0);  // Reserved.
+  big_endian_writer_.WriteU8(3);     // Loss fields.
+  big_endian_writer_.WriteU16(target_delay_ms);
   big_endian_writer_.WriteU8(kLostFrameId);
   big_endian_writer_.WriteU16(kRtcpCastAllPacketsLost);
   big_endian_writer_.WriteU8(0);  // Lost packet id mask.
   big_endian_writer_.WriteU8(kFrameIdWithLostPackets);
   big_endian_writer_.WriteU16(kLostPacketId1);
   big_endian_writer_.WriteU8(0x2);  // Lost packet id mask.
   big_endian_writer_.WriteU8(kFrameIdWithLostPackets);
   big_endian_writer_.WriteU16(kLostPacketId3);
   big_endian_writer_.WriteU8(0);  // Lost packet id mask.
 }
@@ skipping 73 matching lines @@
   big_endian_writer_.WriteU8(0x80 | (format_or_count & 0x1F));
   big_endian_writer_.WriteU8(payload);
   ptr_of_length_ = big_endian_writer_.ptr();
 
   // Initialize length to "clearly illegal".
   big_endian_writer_.WriteU16(0xDEAD);
 }
 
 }  // namespace cast
 }  // namespace media