[rtp_rtcp] rtcp::Tmmbr moved into own file

webrtc/modules/rtp_rtcp/source/rtcp_packet.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 21 matching lines @@
 using webrtc::RTCPUtility::RTCPPacketPSFBAPP;
 using webrtc::RTCPUtility::RTCPPacketPSFBFIR;
 using webrtc::RTCPUtility::RTCPPacketPSFBFIRItem;
 using webrtc::RTCPUtility::RTCPPacketPSFBREMBItem;
 using webrtc::RTCPUtility::RTCPPacketPSFBRPSI;
 using webrtc::RTCPUtility::RTCPPacketPSFBSLI;
 using webrtc::RTCPUtility::RTCPPacketPSFBSLIItem;
 using webrtc::RTCPUtility::RTCPPacketReportBlockItem;
 using webrtc::RTCPUtility::RTCPPacketRTPFBNACK;
 using webrtc::RTCPUtility::RTCPPacketRTPFBNACKItem;
-using webrtc::RTCPUtility::RTCPPacketRTPFBTMMBR;
-using webrtc::RTCPUtility::RTCPPacketRTPFBTMMBRItem;
 using webrtc::RTCPUtility::RTCPPacketSR;
 using webrtc::RTCPUtility::RTCPPacketXRDLRRReportBlockItem;
 using webrtc::RTCPUtility::RTCPPacketXR;
 
 namespace webrtc {
 namespace rtcp {
 namespace {
 // Unused SSRC of media source, set to 0.
 const uint32_t kUnusedMediaSourceSsrc0 = 0;
 
@@ skipping 197 matching lines @@
                const RTCPPacketPSFBFIRItem& fir_item,
                uint8_t* buffer,
                size_t* pos) {
   AssignUWord32(buffer, pos, fir.SenderSSRC);
   AssignUWord32(buffer, pos, kUnusedMediaSourceSsrc0);
   AssignUWord32(buffer, pos, fir_item.SSRC);
   AssignUWord8(buffer, pos, fir_item.CommandSequenceNumber);
   AssignUWord24(buffer, pos, 0);
 }
 
-void CreateTmmbrItem(const RTCPPacketRTPFBTMMBRItem& tmmbr_item,
-                     uint8_t* buffer,
-                     size_t* pos) {
-  uint32_t bitrate_bps = tmmbr_item.MaxTotalMediaBitRate * 1000;
-  uint32_t mantissa = 0;
-  uint8_t exp = 0;
-  ComputeMantissaAnd6bitBase2Exponent(bitrate_bps, 17, &mantissa, &exp);
-
-  AssignUWord32(buffer, pos, tmmbr_item.SSRC);
-  AssignUWord8(buffer, pos, (exp << 2) + ((mantissa >> 15) & 0x03));
-  AssignUWord8(buffer, pos, mantissa >> 7);
-  AssignUWord8(buffer, pos, (mantissa << 1) +
-                            ((tmmbr_item.MeasuredOverhead >> 8) & 0x01));
-  AssignUWord8(buffer, pos, tmmbr_item.MeasuredOverhead);
-}
-
-// Temporary Maximum Media Stream Bit Rate Request (TMMBR) (RFC 5104).
-//
-// FCI:
-//
-//    0                   1                   2                   3
-//    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   |                              SSRC                             |
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   | MxTBR Exp |  MxTBR Mantissa                 |Measured Overhead|
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-void CreateTmmbr(const RTCPPacketRTPFBTMMBR& tmmbr,
-                 const RTCPPacketRTPFBTMMBRItem& tmmbr_item,
-                 uint8_t* buffer,
-                 size_t* pos) {
-  AssignUWord32(buffer, pos, tmmbr.SenderSSRC);
-  AssignUWord32(buffer, pos, kUnusedMediaSourceSsrc0);
-  CreateTmmbrItem(tmmbr_item, buffer, pos);
-}
-
 // Receiver Estimated Max Bitrate (REMB) (draft-alvestrand-rmcat-remb).
 //
 //    0                   1                   2                   3
 //    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 //   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //   |V=2|P| FMT=15  |   PT=206      |             length            |
 //   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //   |                  SSRC of packet sender                        |
 //   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //   |                  SSRC of media source                         |
@@ skipping 310 matching lines @@
 }
 
 void Remb::AppliesTo(uint32_t ssrc) {
   if (remb_item_.NumberOfSSRCs >= kMaxNumberOfSsrcs) {
     LOG(LS_WARNING) << "Max number of REMB feedback SSRCs reached.";
     return;
   }
   remb_item_.SSRCs[remb_item_.NumberOfSSRCs++] = ssrc;
 }
 
-bool Tmmbr::Create(uint8_t* packet,
-                   size_t* index,
-                   size_t max_length,
-                   RtcpPacket::PacketReadyCallback* callback) const {
-  while (*index + BlockLength() > max_length) {
-    if (!OnBufferFull(packet, index, callback))
-      return false;
-  }
-  const uint8_t kFmt = 3;
-  CreateHeader(kFmt, PT_RTPFB, HeaderLength(), packet, index);
-  CreateTmmbr(tmmbr_, tmmbr_item_, packet, index);
-  return true;
-}
-
 bool Xr::Create(uint8_t* packet,
                 size_t* index,
                 size_t max_length,
                 RtcpPacket::PacketReadyCallback* callback) const {
   while (*index + BlockLength() > max_length) {
     if (!OnBufferFull(packet, index, callback))
       return false;
   }
   CreateHeader(0U, PT_XR, HeaderLength(), packet, index);
   CreateXrHeader(xr_header_, packet, index);
@@ skipping 77 matching lines @@
   return length_;
 }
 
 void RawPacket::SetLength(size_t length) {
   assert(length <= buffer_length_);
   length_ = length;
 }
 
 }  // namespace rtcp
 }  // namespace webrtc