Remove unused items in tools/

tools/python_charts/webrtc/main.py

-#!/usr/bin/env python
-#  Copyright (c) 2011 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 os
-import gviz_api
-import webrtc.data_helper
-
-def main():
-  """
-  This Python script displays a web page with test created with the
-  video_quality_measurement program, which is a tool in WebRTC.
-
-  The script requires on two external files and one Python library:
-  - A HTML template file with layout and references to the json variables
-    defined in this script
-  - A data file in Python format, containing the following:
-    - test_configuration - a dictionary of test configuration names and values.
-    - frame_data_types - a dictionary that maps the different metrics to their
-      data types.
-    - frame_data - a list of dictionaries where each dictionary maps a metric to
-      it's value.
-  - The gviz_api.py of the Google Visualization Python API, available at
-    http://code.google.com/p/google-visualization-python/
-
-  The HTML file is shipped with the script, while the data file must be
-  generated by running video_quality_measurement with the --python flag
-  specified.
-  """
-  print 'Content-type: text/html\n' # the newline is required!
-
-  page_template_filename = '../templates/chart_page_template.html'
-  # The data files must be located in the project tree for app engine being
-  # able to access them.
-  data_filenames = ['../data/vp8_sw.py', '../data/vp8_hw.py']
-  # Will contain info/error messages to be displayed on the resulting page.
-  messages = []
-  # Load the page HTML template.
-  try:
-    f = open(page_template_filename)
-    page_template = f.read()
-    f.close()
-  except IOError as e:
-    ShowErrorPage('Cannot open page template file: %s<br>Details: %s' %
-                  (page_template_filename, e))
-    return
-
-  # Read data from external Python script files. First check that they exist.
-  for filename in data_filenames:
-    if not os.path.exists(filename):
-      messages.append('Cannot open data file: %s' % filename)
-      data_filenames.remove(filename)
-
-  # Read data from all existing input files.
-  data_list = []
-  test_configurations = []
-  names = []
-
-  for filename in data_filenames:
-    read_vars = {} # empty dictionary to load the data into.
-    execfile(filename, read_vars, read_vars)
-
-    test_configuration = read_vars['test_configuration']
-    table_description = read_vars['frame_data_types']
-    table_data = read_vars['frame_data']
-
-    # Verify the data in the file loaded properly.
-    if not table_description or not table_data:
-      messages.append('Invalid input file: %s. Missing description list or '
-                      'data dictionary variables.' % filename)
-      continue
-
-    # Frame numbers appear as number type in the data, but Chart API requires
-    # values of the X-axis to be of string type.
-    # Change the frame_number column data type:
-    table_description['frame_number'] = ('string', 'Frame number')
-    # Convert all the values to string types:
-    for row in table_data:
-      row['frame_number'] = str(row['frame_number'])
-
-    # Store the unique data from this file in the high level lists.
-    test_configurations.append(test_configuration)
-    data_list.append(table_data)
-    # Name of the test run must be present.
-    test_name = FindConfiguration(test_configuration, 'name')
-    if not test_name:
-      messages.append('Invalid input file: %s. Missing configuration key '
-                      '"name"', filename)
-      continue
-    names.append(test_name)
-
-  # Create data helper and build data tables for each graph.
-  helper = webrtc.data_helper.DataHelper(data_list, table_description,
-                                         names, messages)
-
-  # Loading it into gviz_api.DataTable objects and create JSON strings.
-  description, data = helper.CreateConfigurationTable(test_configurations)
-  configurations = gviz_api.DataTable(description, data)
-  json_configurations = configurations.ToJSon()  # pylint: disable=W0612
-
-  description, data = helper.CreateData('ssim')
-  ssim = gviz_api.DataTable(description, data)
-  # pylint: disable=W0612
-  json_ssim_data = ssim.ToJSon(helper.GetOrdering(description))
-
-  description, data = helper.CreateData('psnr')
-  psnr = gviz_api.DataTable(description, data)
-  # pylint: disable=W0612
-  json_psnr_data = psnr.ToJSon(helper.GetOrdering(description))
-
-  description, data = helper.CreateData('packets_dropped')
-  packet_loss = gviz_api.DataTable(description, data)
-  # pylint: disable=W0612
-  json_packet_loss_data = packet_loss.ToJSon(helper.GetOrdering(description))
-
-  description, data = helper.CreateData('bit_rate')
-  # Add a column of data points for the desired bit rate to be plotted.
-  # (uses test configuration from the last data set, assuming it is the same
-  # for all of them)
-  desired_bit_rate = FindConfiguration(test_configuration, 'bit_rate_in_kbps')
-  if not desired_bit_rate:
-    ShowErrorPage('Cannot configuration field named "bit_rate_in_kbps"')
-    return
-  desired_bit_rate = int(desired_bit_rate)
-  # Add new column data type description.
-  description['desired_bit_rate'] = ('number', 'Desired bit rate (kbps)')
-  for row in data:
-    row['desired_bit_rate'] = desired_bit_rate
-  bit_rate = gviz_api.DataTable(description, data)
-  # pylint: disable=W0612
-  json_bit_rate_data = bit_rate.ToJSon(helper.GetOrdering(description))
-
-  # Format the messages list with newlines.
-  messages = '\n'.join(messages)
-
-  # Put the variables as JSon strings into the template.
-  print page_template % vars()
-
-def FindConfiguration(configuration, name):
-  """ Finds a configuration value using it's name.
-      Returns the first configuration with a matching name. Returns None if no
-      matching configuration is found. """
-  return_value = None
-  for row in configuration:
-    if row['name'] == name:
-      return_value = row['value']
-      break
-  return return_value
-
-def ShowErrorPage(error_message):
-  print '<html><body>%s</body></html>' % error_message
-
-if __name__ == '__main__':
-  main()