Move webrtc/{tools => rtc_tools}

webrtc/tools/compare_videos.py

 #!/usr/bin/env python
 # 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.
 
-import optparse
 import os
-import shutil
-import subprocess
-import sys
-import tempfile
 
+# This is just a forwarding script during the transition of renaming tools to
+# rtc_tools. To avoid breaking Chromium tests.
 
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
-
-# Chrome browsertests will throw away stderr; avoid that output gets lost.
-sys.stderr = sys.stdout
-
-
-def _ParseArgs():
-  """Registers the command-line options."""
-  usage = 'usage: %prog [options]'
-  parser = optparse.OptionParser(usage=usage)
-
-  parser.add_option('--label', type='string', default='MY_TEST',
-                    help=('Label of the test, used to identify different '
-                          'tests. Default: %default'))
-  parser.add_option('--ref_video', type='string',
-                    help='Reference video to compare with (YUV).')
-  parser.add_option('--test_video', type='string',
-                    help=('Test video to be compared with the reference '
-                          'video (YUV).'))
-  parser.add_option('--frame_analyzer', type='string',
-                    help='Path to the frame analyzer executable.')
-  parser.add_option('--barcode_decoder', type='string',
-                    help=('Path to the barcode decoder script. By default, we '
-                          'will assume we can find it in barcode_tools/'
-                          'relative to this directory.'))
-  parser.add_option('--ffmpeg_path', type='string',
-                    help=('The path to where the ffmpeg executable is located. '
-                          'If omitted, it will be assumed to be present in the '
-                          'PATH with the name ffmpeg[.exe].'))
-  parser.add_option('--zxing_path', type='string',
-                    help=('The path to where the zxing executable is located. '
-                          'If omitted, it will be assumed to be present in the '
-                          'PATH with the name zxing[.exe].'))
-  parser.add_option('--stats_file_ref', type='string', default='stats_ref.txt',
-                    help=('Path to the temporary stats file to be created and '
-                          'used for the reference video file. '
-                          'Default: %default'))
-  parser.add_option('--stats_file_test', type='string',
-                    default='stats_test.txt',
-                    help=('Path to the temporary stats file to be created and '
-                          'used for the test video file. Default: %default'))
-  parser.add_option('--stats_file', type='string',
-                    help=('DEPRECATED'))
-  parser.add_option('--yuv_frame_width', type='int', default=640,
-                    help='Width of the YUV file\'s frames. Default: %default')
-  parser.add_option('--yuv_frame_height', type='int', default=480,
-                    help='Height of the YUV file\'s frames. Default: %default')
-  options, _ = parser.parse_args()
-
-  if options.stats_file:
-    options.stats_file_test = options.stats_file
-    print ('WARNING: Using deprecated switch --stats_file. '
-           'The new flag is --stats_file_test.')
-
-  if not options.ref_video:
-    parser.error('You must provide a path to the reference video!')
-  if not os.path.exists(options.ref_video):
-    parser.error('Cannot find the reference video at %s' % options.ref_video)
-
-  if not options.test_video:
-    parser.error('You must provide a path to the test video!')
-  if not os.path.exists(options.test_video):
-    parser.error('Cannot find the test video at %s' % options.test_video)
-
-  if not options.frame_analyzer:
-    parser.error('You must provide the path to the frame analyzer executable!')
-  if not os.path.exists(options.frame_analyzer):
-    parser.error('Cannot find frame analyzer executable at %s!' %
-                 options.frame_analyzer)
-  return options
-
-def _DevNull():
-  """On Windows, sometimes the inherited stdin handle from the parent process
-  fails. Workaround this by passing null to stdin to the subprocesses commands.
-  This function can be used to create the null file handler.
-  """
-  return open(os.devnull, 'r')
-
-def DecodeBarcodesInVideo(options, path_to_decoder, video, stat_file):
-  # Run barcode decoder on the test video to identify frame numbers.
-  png_working_directory = tempfile.mkdtemp()
-  cmd = [
-    sys.executable,
-    path_to_decoder,
-    '--yuv_file=%s' % video,
-    '--yuv_frame_width=%d' % options.yuv_frame_width,
-    '--yuv_frame_height=%d' % options.yuv_frame_height,
-    '--stats_file=%s' % stat_file,
-    '--png_working_dir=%s' % png_working_directory,
-  ]
-  if options.zxing_path:
-    cmd.append('--zxing_path=%s' % options.zxing_path)
-  if options.ffmpeg_path:
-    cmd.append('--ffmpeg_path=%s' % options.ffmpeg_path)
-
-
-  barcode_decoder = subprocess.Popen(cmd, stdin=_DevNull(),
-                                     stdout=sys.stdout, stderr=sys.stderr)
-  barcode_decoder.wait()
-
-  shutil.rmtree(png_working_directory)
-  if barcode_decoder.returncode != 0:
-    print 'Failed to run barcode decoder script.'
-    return 1
-  return 0
-
-def main():
-  """The main function.
-
-  A simple invocation is:
-  ./webrtc/tools/barcode_tools/compare_videos.py
-  --ref_video=<path_and_name_of_reference_video>
-  --test_video=<path_and_name_of_test_video>
-  --frame_analyzer=<path_and_name_of_the_frame_analyzer_executable>
-
-  Notice that the prerequisites for barcode_decoder.py also applies to this
-  script. The means the following executables have to be available in the PATH:
-  * zxing
-  * ffmpeg
-  """
-  options = _ParseArgs()
-
-  if options.barcode_decoder:
-    path_to_decoder = options.barcode_decoder
-  else:
-    path_to_decoder = os.path.join(SCRIPT_DIR, 'barcode_tools',
-                                   'barcode_decoder.py')
-
-  if DecodeBarcodesInVideo(options, path_to_decoder,
-                           options.ref_video, options.stats_file_ref) != 0:
-    return 1
-  if DecodeBarcodesInVideo(options, path_to_decoder,
-                           options.test_video, options.stats_file_test) != 0:
-    return 1
-
-  # Run frame analyzer to compare the videos and print output.
-  cmd = [
-    options.frame_analyzer,
-    '--label=%s' % options.label,
-    '--reference_file=%s' % options.ref_video,
-    '--test_file=%s' % options.test_video,
-    '--stats_file_ref=%s' % options.stats_file_ref,
-    '--stats_file_test=%s' % options.stats_file_test,
-    '--width=%d' % options.yuv_frame_width,
-    '--height=%d' % options.yuv_frame_height,
-  ]
-  frame_analyzer = subprocess.Popen(cmd, stdin=_DevNull(),
-                                    stdout=sys.stdout, stderr=sys.stderr)
-  frame_analyzer.wait()
-  if frame_analyzer.returncode != 0:
-    print 'Failed to run frame analyzer.'
-    return 1
-
-  return 0
-
-if __name__ == '__main__':
-  sys.exit(main())
+RTC_TOOLS_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir,
+                                             'rtc_tools'))
+os.system(os.path.join(RTC_TOOLS_DIR, 'compare_videos.py'))