New rtc dump analyzing tool in Python

webrtc/tools/BUILD.gn

 # Copyright (c) 2014 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.
 
 import("//testing/test.gni")
 import("../build/webrtc.gni")
@@ skipping 261 matching lines @@
       ":frame_editing_lib",
       ":video_quality_analysis",
       "../test:test_support_main",
       "//testing/gtest",
     ]
 
     if (is_android) {
       deps += [ "//testing/android/native_test:native_test_support" ]
     }
   }
+
+  if (rtc_enable_protobuf) {
+    group("rtp_analyzer") {

[kjellander_webrtc, 2016/06/15 14:46:53]

Please remove this group target. You can add a dependency to the copy-target
below instead, like this:
      deps = [
        "..:rtc_event_log_proto",
      ]

I verified it works with building and looking at the output from
gn desc out/Default/ //webrtc/tools:rtp_analyzer 

[aleloi, 2016/06/16 11:15:28]

Done.

+      deps = [
+        ":rtp_analyzer-copy",
+        "../:rtc_event_log_proto",

[kjellander_webrtc, 2016/06/15 14:46:53]

nit: ..:rtc_event_log_proto is sufficient.

[aleloi, 2016/06/16 11:15:28]

Done.

+      ]
+    }
+
+    copy("rtp_analyzer-copy") {

[kjellander_webrtc, 2016/06/15 14:46:53]

After addressing the above comments, rename this to rtp_analyzer instead.

[aleloi, 2016/06/16 11:15:27]

Done.

+      sources = [
+        "py_event_log_analyzer/misc.py",
+        "py_event_log_analyzer/pb_parse.py",
+        "py_event_log_analyzer/rtp_analyzer.py",
+        "py_event_log_analyzer/rtp_analyzer.sh",
+      ]
+      outputs = [
+        "$root_build_dir/{{source_file_part}}",
+      ]
+    }
+  }
 }