Wire up transport sequence number / send time callbacks to webrtc via libjingle.

talk/media/webrtc/webrtcvideoengine2.cc

 /*
  * libjingle
  * Copyright 2014 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 543 matching lines @@
   video_codecs_ = GetSupportedCodecs();
   rtp_header_extensions_.push_back(
       RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension,
                          kRtpTimestampOffsetHeaderExtensionDefaultId));
   rtp_header_extensions_.push_back(
       RtpHeaderExtension(kRtpAbsoluteSenderTimeHeaderExtension,
                          kRtpAbsoluteSenderTimeHeaderExtensionDefaultId));
   rtp_header_extensions_.push_back(
       RtpHeaderExtension(kRtpVideoRotationHeaderExtension,
                          kRtpVideoRotationHeaderExtensionDefaultId));
+  rtp_header_extensions_.push_back(
+      RtpHeaderExtension(kRtpTransportSequenceNumberHeaderExtension,
+                         kRtpTransportSequenceNumberHeaderExtensionDefaultId));
 }
 
 WebRtcVideoEngine2::~WebRtcVideoEngine2() {
   LOG(LS_INFO) << "WebRtcVideoEngine2::~WebRtcVideoEngine2";
 }
 
 void WebRtcVideoEngine2::Init() {
   LOG(LS_INFO) << "WebRtcVideoEngine2::Init";
   initialized_ = true;
 }
@@ skipping 1079 matching lines @@
         && kv.second->video_adapter() != nullptr) {
       kv.second->video_adapter()->OnCpuResolutionRequest(
           load == kOveruse ? CoordinatedVideoAdapter::DOWNGRADE
                            : CoordinatedVideoAdapter::UPGRADE);
     }
   }
 }
 
 bool WebRtcVideoChannel2::SendRtp(const uint8_t* data,
                                   size_t len,
                                   const webrtc::PacketOptions& options) {

[pthatcher1, 2015/10/05 18:30:13]

Would it be possible to have one PacketOptions struct instead of two?  If not,
can we enumerate the reasons why not in the definition of the second one and
then have a TODO saying when we should unify them?

[pthatcher1, 2015/10/07 16:44:37]

?

[stefan-webrtc, 2015/10/07 16:55:24]

I'd be happy to follow-up with a CL which does this, but since the
webrtc::Transport interface I think it's better to do it in a separate CL.

   rtc::Buffer packet(data, len, kMaxRtpPacketLen);
-  return MediaChannel::SendPacket(&packet);
+  rtc::PacketOptions rtc_options;
+  rtc_options.packet_id = options.packet_id;
+  return MediaChannel::SendPacket(&packet, rtc_options);
 }
 
 bool WebRtcVideoChannel2::SendRtcp(const uint8_t* data, size_t len) {
   rtc::Buffer packet(data, len, kMaxRtpPacketLen);
-  return MediaChannel::SendRtcp(&packet);
+  return MediaChannel::SendRtcp(&packet, rtc::PacketOptions());
 }
 
 void WebRtcVideoChannel2::StartAllSendStreams() {
   rtc::CritScope stream_lock(&stream_crit_);
   for (std::map<uint32, WebRtcVideoSendStream*>::iterator it =
            send_streams_.begin();
        it != send_streams_.end();
        ++it) {
     it->second->Start();
   }
@@ skipping 1057 matching lines @@
       video_codecs[i].rtx_payload_type = rtx_mapping[video_codecs[i].codec.id];
     }
   }
 
   return video_codecs;
 }
 
 }  // namespace cricket
 
 #endif  // HAVE_WEBRTC_VIDEO