Implement timing frames.

webrtc/video/payload_router.cc

Index: webrtc/video/payload_router.cc
diff --git a/webrtc/video/payload_router.cc b/webrtc/video/payload_router.cc
index 52e9d46ebb4f594c4fbfa3d96b1753e0717dabdb..b2e1767ad26c893289ecb871ffd3e1ecbdcc97d4 100644
--- a/webrtc/video/payload_router.cc
+++ b/webrtc/video/payload_router.cc
@@ -130,6 +130,20 @@ EncodedImageCallback::Result PayloadRouter::OnEncodedImage(
     CopyCodecSpecific(codec_specific_info, &rtp_video_header);
   rtp_video_header.rotation = encoded_image.rotation_;
   rtp_video_header.content_type = encoded_image.content_type_;
+  if (encoded_image.timing_.is_timing_frame) {
+    rtp_video_header.video_timing.encode_start_ms_delta =
+        VideoTiming::GetDeltaMs(encoded_image.capture_time_ms_,
+                                encoded_image.timing_.encode_start_ms);
+    rtp_video_header.video_timing.encode_finish_ms_delta =
+        VideoTiming::GetDeltaMs(encoded_image.capture_time_ms_,
+                                encoded_image.timing_.encode_finish_ms);
+    rtp_video_header.video_timing.packetization_finish_ms_delta = 0;
+    rtp_video_header.video_timing.pacer_exit_ms_delta = 0;
+    rtp_video_header.video_timing.network_timstamp_ms_delta = 0;
+    rtp_video_header.video_timing.is_timing_frame = true;
+  } else {
+    rtp_video_header.video_timing.is_timing_frame = false;
+  }
   rtp_video_header.playout_delay = encoded_image.playout_delay_;
 
   int stream_index = rtp_video_header.simulcastIdx;