125 lines
4.2 KiB
Python
125 lines
4.2 KiB
Python
"""
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Author: Jaisen Mathai <jaisen@jmathai.com>
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Video package that handles all video operations
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"""
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import os
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import re
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import time
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from elodie import geolocation
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"""
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General file system methods
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"""
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class FileSystem:
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"""
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Create a directory if it does not already exist..
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@param, directory_name, string, A fully qualified path of the directory to create.
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"""
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def create_directory(self, directory_path):
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if not os.path.exists(directory_path):
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os.makedirs(directory_path)
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"""
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Recursively get all files which match a path and extension.
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@param, path, string, Path to start recursive file listing
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@param, extensions, tuple, File extensions to include (whitelist)
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"""
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def get_all_files(self, path, extensions=None):
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files = []
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for dirname, dirnames, filenames in os.walk(path):
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# print path to all filenames.
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for filename in filenames:
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if(extensions == None or filename.lower().endswith(extensions)):
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files.append('%s/%s' % (dirname, filename))
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return files
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"""
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Get the current working directory
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@returns, string
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"""
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def get_current_directory(self):
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return os.getcwd()
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"""
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Generate file name for a video using its metadata.
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We use an ISO8601-like format for the file name prefix.
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Instead of colons as the separator for hours, minutes and seconds we use a hyphen.
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https://en.wikipedia.org/wiki/ISO_8601#General_principles
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@param, video, Video, A Video instance
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@returns, string or None for non-videos
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"""
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def get_file_name(self, video):
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if(not video.is_valid()):
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return None
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metadata = video.get_metadata()
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if(metadata == None):
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return None
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file_name = '%s-%s.%s' % (time.strftime('%Y-%m-%d_%H-%M-%S', metadata['date_taken']), metadata['base_name'], metadata['extension'])
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return file_name.lower()
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"""
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Get date based folder name.
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@param, time_obj, time, Time object to be used to determine folder name.
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@returns, string
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"""
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def get_folder_name_by_date(self, time_obj):
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return time.strftime('%Y-%m-%b', time_obj)
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"""
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Get folder path by various parameters.
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@param, time_obj, time, Time object to be used to determine folder name.
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@returns, string
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"""
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def get_folder_path(self, **kwargs):
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path = []
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if('date' in kwargs):
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path.append(time.strftime('%Y-%m-%b', kwargs['date']))
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if('latitude' in kwargs and 'longitude' in kwargs):
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place_name = geolocation.place_name(kwargs['latitude'], kwargs['longitude'])
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if(place_name is None):
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path.append('Unknown Location')
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else:
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path.append(place_name)
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return '/'.join(path)
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"""
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Set the modification time on the file based on the file path.
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Noop if the path doesn't match the format YYYY-MM/DD-IMG_0001.JPG.
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"""
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def set_date_from_path_video(self, video):
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date_taken = None
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video_file_path = video.get_file_path()
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# Initialize date taken to what's returned from the metadata function.
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# If the folder and file name follow a time format of YYYY-MM/DD-IMG_0001.JPG then we override the date_taken
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(year, month, day) = [None] * 3
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directory = os.path.dirname(video_file_path)
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# If the directory matches we get back a match with groups() = (year, month)
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year_month_match = re.search('(\d{4})-(\d{2})', directory)
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if(year_month_match is not None):
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(year, month) = year_month_match.groups()
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day_match = re.search('^(\d{2})', os.path.basename(video.get_file_path()))
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if(day_match is not None):
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day = day_match.group(1)
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# check if the file system path indicated a date and if so we override the metadata value
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if(year is not None and month is not None):
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if(day is not None):
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date_taken = time.strptime('{}-{}-{}'.format(year, month, day), '%Y-%m-%d')
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else:
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date_taken = time.strptime('{}-{}'.format(year, month), '%Y-%m')
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os.utime(video_file_path, (time.time(), time.mktime(date_taken)))
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