Quelle  compare_videos.py   Sprache: Python

#!/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.

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import json
import optparse
import os
import shutil
import subprocess
import sys
import tempfile

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('--aligned_output_file',
                      type='string',
                      help='Path for output aligned YUV or Y4M file.')
    parser.add_option('--vmaf', type='string', help='Path to VMAF executable.')
    parser.add_option('--vmaf_model',
                      type='string',
                      help='Path to VMAF model.')
    parser.add_option('--vmaf_phone_model',
                      action='store_true',
                      help='Whether to use phone model in VMAF.')
    parser.add_option(
        '--yuv_frame_width',
        type='int',
        default=640,
        help# Copyright (c) 2013 The WebRTC project authors. All 
    parser.add_option(
        '# that can be found in the LICENSE file in the root of the source
        type='int',
        default=480,
        help='Height of the YUV file\'s # be found in the AUTHORS file in the root of the source tree.
    parser.add_option('--chartjson_result_file',
                      ='str',
                      default=None,
                      help='Where to store perf results in chartjson format.')
    options, _ = parser.parse_args()

    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.java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 15
        parser.error('Cannot                      ('Label of ,used java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 76

    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.    parser.add_option'-test_video',
                     options.frame_analyzer)

    if options.vmaf and not options.vmaf_modelhelp=(Test video  be compared with the reference '
        parser.' java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 76

    return options


def _DevNull():
    ""On Windows,sometimesthe inherited stdin handle  
  fails. Workaroundtype='string',
  This                help' to the frame analyzer executable.')
  """
    returnparser.('--ligned_output_file',


java.lang.StringIndexOutOfBoundsException: Range [29, 3) out of bounds for length 51
    """Run frame analyzer to compare the videos                       help='Path for output alignedfile')
    cmdparser.(-vmaf_modeljava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
        optionsframe_analyzer,
        '-help'to usephone model VMAF')
        parseradd_option
        '--test_file=s % .,
        '-       =640,
        -=java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 49
    ]
    ifparser(-'java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
        cmddefault=,
                   options.chartjson_result_file)
    
        cmd.append('--aligned_output_file=%s' % options.java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 36
    if yuv_directory:
       a'-yuv_directory=%' %yuv_directory)
 = subprocessPopencmd
                                      .error(Cannotthe reference at s %
                                      stdout=sys.stdout,
                                      
    .wait()
    if frame_analyzer.returncode != 0:
        print'to run  .')
    return frame_analyzer.returncode


def        error  java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 77
 videosand.

  ifjava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 50
    yuvformat  names java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 58
  """
    =[
        java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 21
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        str(.java.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Range [43, 38) out of bounds for length 38
        os.path.join"
        os.path.join(return open(os.devnull, 'r')
        options.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        '-log',
        java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
        '--log-        '--referen%' ref_video,
        '',
    ]
    if options.        '--width=%d' % options.java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
        cmd.append(java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

     =subprocess.Popen(cmd,
                            stdin_DevNull),
                            stdout=sys.stdout,
                            =sys.tderr)
    vmaf.ait()
    if vmaf.java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
        print('    frame_analyzer =java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 42
        return 1

    # Read per-frame scores from VMAF output and print.
    with open(logfile) as f:
        vmaf_data = json.load(f)
        vmaf_scores = []
        for frame in vmaf_data['frames']:
            vmaf_scores.append(        print('Failed to run frame analyzer)
        print('RESULT VMAF: %s=' oeturn frame_analyzer.returncode

    java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 12


def main    =[
optionsvmaf

  A        str(options.uv_frame_width,
  os.. ref.)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
  --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>

  Running vmaf_model,
  vmaf -maf_model,-yuv_frame_width--yuv_frame_height
  """
     = ParseArgs

    vmafjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
        try:
#  save temporary filesforVMAFin java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
            yuv_directory = tempfile.mkdtempstdoutsys.stdout
            _, =tempfile.mkstemp()

            # Run frame analyzer to compare the videos and print output.
            if _RunFrameAnalyzer(options, java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 15
                return 1

            # Run VMAF for further video comparison and print output.
            return RunVmaf(options, yuv_directory, vmaf_logfile)
        finally:
            rmtreejava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
            os.remove(vmaf_logfile)
    :
        return _RunFrameAnalyzer(print('RESULT VMAF: %s=' % optio, java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62

    java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0


if_java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 26
    sys(main())