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 31 matching lines @@
       _bitStreamBeforeDecoder(NULL),
 #endif
       _frameFromFile(),
       _scheduleKeyRequest(false),
       drop_frames_until_keyframe_(false),
       max_nack_list_size_(0),
       _codecDataBase(nullptr, nullptr),
       pre_decode_image_callback_(NULL),
       _receiveStatsTimer(1000, clock_),
       _retransmissionTimer(10, clock_),
-      _keyRequestTimer(500, clock_) {
+      _keyRequestTimer(500, clock_),
+      received_first_frame_(false) {
   assert(clock_);
 #ifdef DEBUG_DECODER_BIT_STREAM
   _bitStreamBeforeDecoder = fopen("decoderBitStream.bit", "wb");
 #endif
 }
 
 VideoReceiver::~VideoReceiver() {
   delete _receiveCritSect;
 #ifdef DEBUG_DECODER_BIT_STREAM
   fclose(_bitStreamBeforeDecoder);
@@ skipping 240 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 (!received_first_frame_) {
+    received_first_frame_ = true;
+    LOG(LS_INFO) << "First decodable video frame received, complete = " <<
+      (frame->Complete() ? "true" : "false");

[pthatcher1, 2016/03/05 01:17:05]

And here :) "Received first ...

[skvlad, 2016/03/07 19:36:53]

Done.

+  }
+
   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