New rtc dump analyzing tool in Python

webrtc/BUILD.gn

Index: webrtc/BUILD.gn
diff --git a/webrtc/BUILD.gn b/webrtc/BUILD.gn
index 5147ecc972a066f8001b043ef0075d238fac6e09..79a7e4a7bd2f31d6a112183f6cf7b82b90275614 100644
--- a/webrtc/BUILD.gn
+++ b/webrtc/BUILD.gn
@@ -353,6 +353,26 @@ source_set("rtc_event_log") {
 }
 
 if (rtc_enable_protobuf) {
+  group("rtp_analyzer") {

[kjellander_webrtc, 2016/06/13 12:33:31]

I don't think we should expose more targets to Chromium than necessary to avoid
slowing down their build. Can you move these targets into an
if (!build_with_chromium) {
}
block? Or move them into the 
if (rtc_include_tests) {
}
block further down.

+    deps = [
+      ":rtc_event_log_proto",
+      ":rtp_analyzer-copy",
+    ]
+  }
+
+  copy("rtp_analyzer-copy") {
+    sources = [
+      "//tools/py_event_log_analyzer/copy_files.py",

[kjellander_webrtc, 2016/06/13 12:33:31]

Since WebRTC's GN configuration needs to work both in Chromium and WebRTC, we
cannot reference our sources with absolute paths. These would need to be like
"tools/py_event_log_analyzer/copy_files.py" instead.


You can run the patch on a Linux Chromium trybot to find out how/if this breaks.
See https://webrtc.org/contributing/#tryjobs-on-chromium-trybots for details on
that.

[aleloi, 2016/06/14 08:20:49]

But then the path is wrong. The tool is in src/tools, not in src/webrtc/tools.
Should I the whole tool to //webrtc? 

I changed to the relative path "../" in next version.

[aleloi, 2016/06/14 08:29:35]

I tried to follow the instructions to add trybots. The command line one says
"User user:aleloi@webrtc.org cannot add builds to bucket
master.tryserver.chromium.linux". The Rietveld UI says "An error occured". I
made it work by adding a line to the CL description. Now it crashes for another
reason
(https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium...).

+      "//tools/py_event_log_analyzer/misc.py",
+      "//tools/py_event_log_analyzer/pb_parse.py",
+      "//tools/py_event_log_analyzer/rtp_analyzer.py",
+      "//tools/py_event_log_analyzer/rtp_analyzer.sh",
+    ]
+    outputs = [
+      "$root_build_dir/{{source_file_part}}",
+    ]
+  }
+
   source_set("rtc_event_log_parser") {
     sources = [
       "call/rtc_event_log_parser.cc",