Python Template.lower方法代码示例

# 需要导入模块: from string import Template [as 别名]
# 或者: from string.Template import lower [as 别名]
    def process_input(self):
        # type: () -> None
        """ Process Input: Processes input video(s) and generates output as per CLI commands.

        Run after all command line options/sub-commands have been parsed.
        """
        logging.debug('Processing input...')
        if not self.options_processed:
            logging.debug('Skipping processing, CLI options were not parsed successfully.')
            return
        self.check_input_open()
        if not self.scene_manager.get_num_detectors() > 0:
            logging.error(
                'No scene detectors specified (detect-content, detect-threshold, etc...),\n'
                '  or failed to process all command line arguments.')
            return

        # Handle scene detection commands (detect-content, detect-threshold, etc...).
        self.video_manager.start()
        base_timecode = self.video_manager.get_base_timecode()

        start_time = time.time()
        logging.info('Detecting scenes...')

        num_frames = self.scene_manager.detect_scenes(
            frame_source=self.video_manager, frame_skip=self.frame_skip,
            show_progress=not self.quiet_mode)

        duration = time.time() - start_time
        logging.info('Processed %d frames in %.1f seconds (average %.2f FPS).',
                     num_frames, duration, float(num_frames)/duration)

        # Handle -s/--statsfile option.
        if self.stats_file_path is not None:
            if self.stats_manager.is_save_required():
                with open(self.stats_file_path, 'wt') as stats_file:
                    logging.info('Saving frame metrics to stats file: %s',
                                 os.path.basename(self.stats_file_path))
                    self.stats_manager.save_to_csv(
                        stats_file, base_timecode)
            else:
                logging.debug('No frame metrics updated, skipping update of the stats file.')

        # Get list of detected cuts and scenes from the SceneManager to generate the required output
        # files with based on the given commands (list-scenes, split-video, save-images, etc...).
        cut_list = self.scene_manager.get_cut_list(base_timecode)
        scene_list = self.scene_manager.get_scene_list(base_timecode)
        video_paths = self.video_manager.get_video_paths()
        video_name = os.path.basename(video_paths[0])
        if video_name.rfind('.') >= 0:
            video_name = video_name[:video_name.rfind('.')]

        # Ensure we don't divide by zero.
        if scene_list:
            logging.info('Detected %d scenes, average shot length %.1f seconds.',
                         len(scene_list),
                         sum([(end_time - start_time).get_seconds()
                              for start_time, end_time in scene_list]) / float(len(scene_list)))
        else:
            logging.info('No scenes detected.')

        # Handle list-scenes command.
        if self.scene_list_output:
            scene_list_filename = Template(self.scene_list_name_format).safe_substitute(
                VIDEO_NAME=video_name)
            if not scene_list_filename.lower().endswith('.csv'):
                scene_list_filename += '.csv'
            scene_list_path = self.get_output_file_path(
                scene_list_filename, self.scene_list_directory)
            logging.info('Writing scene list to CSV file:\n  %s', scene_list_path)
            with open(scene_list_path, 'wt') as scene_list_file:
                write_scene_list(scene_list_file, scene_list, cut_list)
        # Handle `list-scenes`.
        if self.print_scene_list:
            logging.info("""Scene List:
-----------------------------------------------------------------------
 | Scene # | Start Frame |  Start Time  |  End Frame  |   End Time   |
-----------------------------------------------------------------------
%s
-----------------------------------------------------------------------
""", '\n'.join(
    [' |  %5d  | %11d | %s | %11d | %s |' % (
        i+1,
        start_time.get_frames(), start_time.get_timecode(),
        end_time.get_frames(), end_time.get_timecode())
     for i, (start_time, end_time) in enumerate(scene_list)]))


        if cut_list:
            logging.info('Comma-separated timecode list:\n  %s',
                         ','.join([cut.get_timecode() for cut in cut_list]))

        # Handle save-images command.
        if self.save_images:
            self._generate_images(scene_list=scene_list, video_name=video_name,
                                  image_name_template=self.image_name_format,
                                  output_dir=self.image_directory)

        # Handle export-html command.
        if self.export_html:
#.........这里部分代码省略.........