Added log messages for important call setup events: first packet sent/received

webrtc/modules/video_coding/video_receiver.cc

 /*
  *  Copyright (c) 2013 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 305 matching lines @@
 
 #ifdef DEBUG_DECODER_BIT_STREAM
   if (_bitStreamBeforeDecoder != NULL) {
     // Write bit stream to file for debugging purposes
     if (fwrite(frame->Buffer(), 1, frame->Length(), _bitStreamBeforeDecoder) !=
         frame->Length()) {
       return -1;
     }
   }
 #endif
+
+  if (first_frame_received_()) {
+    LOG(LS_INFO) << "Received first "
+                 << (frame->Complete() ? "complete" : "incomplete")
+                 << " decodable video frame";
+  }
+
   const int32_t ret = Decode(*frame);
   _receiver.ReleaseFrame(frame);
   return ret;
 }
 
 int32_t VideoReceiver::RequestSliceLossIndication(
     const uint64_t pictureID) const {
   TRACE_EVENT1("webrtc", "RequestSLI", "picture_id", pictureID);
   CriticalSectionScoped cs(process_crit_sect_.get());
   if (_frameTypeCallback != NULL) {
@@ skipping 204 matching lines @@
 }
 
 void VideoReceiver::RegisterPreDecodeImageCallback(
     EncodedImageCallback* observer) {
   CriticalSectionScoped cs(_receiveCritSect);
   pre_decode_image_callback_ = observer;
 }
 
 }  // namespace vcm
 }  // namespace webrtc