Add option to output log to files

README.md

@@ -164,6 +164,9 @@ This section describes required fields for the json configuration file.
     - **width**: The width of the input video
     - **fps**: The frames per second (FPS) of the input video
     - **file_path**: The file path of the input video in [YUV](https://en.wikipedia.org/wiki/YUV) format
+  - **logging**:
+    - **enabled**: If set to `true`, the client will write log to the file specified
+    - **log_output_path**: The out path of the log file
 
   ***Note: one and only one of `video_source.webcam.enabled` and `video_source.video_file.enabled` has to be `true`. I.e., `video_source.webcam.enabled` XOR `video_source.video_file.enabled`***
 

api/alphacc_config.cc

@@ -138,6 +138,14 @@ bool ParseAlphaCCConfig(const std::string& file_path) {
     RETURN_ON_FAIL(GetString(third, "file_path", &config->audio_output_path));
   }
 
+  second.clear();
+  third.clear();
+  RETURN_ON_FAIL(GetValue(top, "logging", &second));
+  RETURN_ON_FAIL(GetBool(second, "enabled", &config->save_log_to_file));
+  if (config->save_log_to_file) {
+    RETURN_ON_FAIL(GetString(second, "log_output_path", &config->log_output_path));
+  }
+
   return true;
 }
 

api/alphacc_config.h

@@ -63,6 +63,9 @@ struct AlphaCCConfig {
   int video_output_height = 0;
   int video_output_width = 0;
   int video_output_fps = 0;
+
+  bool save_log_to_file;
+  std::string log_output_path;
 };
 
 // Get alphaCC global configurations

examples/peerconnection/serverless/corpus/receiver.json

@@ -49,5 +49,9 @@
             "fps": 10,
             "file_path": "outvideo.yuv"
         }
+    },
+    "logging": {
+        "enabled": true,
+        "log_output_path": "webrtc.log"
     }
 }

examples/peerconnection/serverless/corpus/sender.json

@@ -40,5 +40,8 @@
     },
     "save_to_file": {
         "enabled": false
+    },
+    "logging": {
+        "enabled": false
     }
 }

examples/peerconnection/serverless/main.cc

@@ -151,6 +151,12 @@ int main(int argc, char* argv[]) {
       new rtc::RefCountedObject<Conductor>(&client, &wnd));
 
   auto config = webrtc::GetAlphaCCConfig();
+
+  if (config->save_log_to_file) {
+    rtc::LogMessage::SetIfLogToFile(true);
+    rtc::LogMessage::SetLogFileName(config->log_output_path);
+  }
+
   if (config->is_receiver) {
     client.StartListen(config->listening_ip, config->listening_port);
   }