Add periodic logging of video stats.

webrtc/video/video_receive_stream.cc

Index: webrtc/video/video_receive_stream.cc
diff --git a/webrtc/video/video_receive_stream.cc b/webrtc/video/video_receive_stream.cc
index 609a789fa2b530a2d65ecdb29c10fe98ee1b66eb..4471697bc37ff59b413b21becd57949bd3a4a625 100644
--- a/webrtc/video/video_receive_stream.cc
+++ b/webrtc/video/video_receive_stream.cc
@@ -109,6 +109,26 @@ std::string VideoReceiveStream::Config::Rtp::ToString() const {
   return ss.str();
 }
 
+std::string VideoReceiveStream::Stats::ToString(int64_t time_ms) const {
+  std::stringstream ss;
+  ss << "VideoReceiveStream stats:" << time_ms << ", {ssrc:" << ssrc << ", ";

[stefan-webrtc, 2016/08/01 11:14:09]

I'd prefer having a space after each ":", same in the other ToString methods.

[åsapersson, 2016/08/01 15:55:22]

Done.

+  ss << "total_bps:" << total_bitrate_bps << ", ";
+  ss << "width:" << width << ", ";
+  ss << "height:" << height << ", ";
+  ss << "network_fps:" << network_frame_rate << ", ";
+  ss << "decode_fps:" << decode_frame_rate << ", ";
+  ss << "render_fps:" << render_frame_rate << ", ";
+  ss << "decode_ms:" << decode_ms << ", ";
+  ss << "max_decode_ms:" << max_decode_ms << ", ";
+  ss << "cur_delay_ms:" << current_delay_ms << ", ";
+  ss << "targ_delay_ms:" << target_delay_ms << ", ";
+  ss << "jb_delay_ms:" << jitter_buffer_ms << ", ";
+  ss << "min_playout_delay_ms:" << min_playout_delay_ms << ", ";
+  ss << "discarded:" << discarded_packets;
+  ss << '}';
+  return ss.str();
+}
+
 namespace {
 VideoCodec CreateDecoderVideoCodec(const VideoReceiveStream::Decoder& decoder) {
   VideoCodec codec;