Update BWE_TEST_LOGGING_PLOT output format, and fix plot_dynamics.py script.

webrtc/modules/remote_bitrate_estimator/test/plot_dynamics.sh

-#!/bin/bash
-
-# 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.
-
-# To set up in e.g. Eclipse, run a separate shell and pipe the output from the
-# test into this script.
-#
-# In Eclipse, that amounts to creating a Run Configuration which starts
-# "/bin/bash" with the arguments "-c [trunk_path]/out/Debug/modules_unittests
-# --gtest_filter=*BweTest* | [trunk_path]/webrtc/modules/
-# remote_bitrate_estimator/test/plot_dynamics.sh
-
-# This script supports multiple figures (windows), the figure is specified as an
-# identifier at the first argument after the PLOT command. Each figure has a
-# single y axis and a dual y axis mode. If any line specifies an axis by ending
-# with "#<axis number (1 or 2)>" two y axis will be used, the first will be
-# assumed to represent bitrate (in kbps) and the second will be assumed to
-# represent time deltas (in ms).
-
-log=$(</dev/stdin)
-
-# Plot dynamics.
-function gen_gnuplot_input {
-  colors=(a7001f 0a60c2 b2582b 21a66c d6604d 4393c3 f4a582 92c5de edcbb7 b1c5d0)
-  plots=$(echo "$log" | grep "^PLOT" | grep "#")
-  # Each figure corresponds to a separate plot window.
-  figures=($(echo "$plots" | cut -f 2 | sort | uniq))
-
-  for figure in "${figures[@]}" ; do
-    # Each data set corresponds to a plot line.
-    data_sets=$(echo "$plots" | grep "^PLOT.$figure" | cut -f 3 | sort | uniq)
-    # Lines can be scaled on the left (1) or right (2) axis.
-    linetypes=($(echo "$data_sets" | grep "#" | cut -d '#' -f 2 | \
-                 cut -d '@' -f 1 | uniq))
-
-    # Set plot configurations.
-    echo "reset; "
-    echo "set terminal wxt $figure size 1440,900 font \"Arial,9\"; "
-    echo "set xlabel \"Seconds\"; "
-    if (( "${#linetypes[@]}" > "1" )); then
-      echo "set ylabel 'Bitrate (kbps)';"  # Left side.
-      echo "set ytics nomirror;"
-      echo "set y2label 'Time delta (ms)';"  # Right side.
-      echo "set y2tics nomirror;"
-    else
-      # Single axis (left side), set its label according to data.
-      y_label=$(echo "$data_sets" | grep "#" | cut -d '#' -f 1  | \
-          cut -d ' ' -f 1 | cut -d '/' -f 3 | sed 's/[0-9]/#/g' | \
-          cut -d '#' -f 3 | head -n 1 | sed 's/_/ /g')
-      echo "set ylabel \"$y_label\";"
-    fi
-
-    i=0
-    echo -n "plot "
-    for set in $data_sets ; do
-      (( i++ )) && echo -n ","
-      echo -n "'-' with "
-      echo -n "linespoints "
-      echo -n "ps 0.5 "
-      echo -n "lc rgbcolor \"#${colors[$(($i % 10))]}\" "
-      if (( "${#linetypes[@]}" > "1" )); then
-        # Multiple sets can have a same line plot.
-        linetype=$(echo "$set" | grep "#" | cut -d '#' -f 2 | cut -d '@' -f 1)
-        if (( "${#linetype}" > "0")); then
-          echo -n "axes x1y$linetype "
-        else
-          # If no line type is specified, but line types are used, we will
-          # default to scale on the left axis.
-          echo -n "axes x1y1 "
-        fi
-      fi
-      echo -n "title \"$set\" "
-    done
-    echo
-    for set in $data_sets ; do
-      echo "$log" | grep "^PLOT.$figure.$set" | cut -f 4,5
-      echo "e"
-    done
-  done
-}
-gen_gnuplot_input | gnuplot -persist