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""" |
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The video module contains the :class:`Video` class, which represents video |
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objects (AVI, MOV, etc.). |
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.. moduleauthor:: Jaisen Mathai <[email protected]> |
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""" |
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from __future__ import print_function |
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from __future__ import absolute_import |
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from __future__ import division |
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# load modules |
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from datetime import datetime |
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import os |
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import re |
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import time |
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from .media import Media |
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class Video(Media): |
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"""A video object. |
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:param str source: The fully qualified path to the video file. |
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""" |
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__name__ = 'Video' |
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#: Valid extensions for video files. |
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extensions = ('avi', 'm4v', 'mov', 'mp4', 'mpg', 'mpeg', '3gp', 'mts') |
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def __init__(self, source=None): |
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super(Video, self).__init__(source) |
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self.exif_map['date_taken'] = [ |
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'QuickTime:CreationDate', |
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'QuickTime:CreateDate', |
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'QuickTime:CreationDate-und-US', |
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'QuickTime:MediaCreateDate', |
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'H264:DateTimeOriginal' |
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] |
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self.title_key = 'XMP:DisplayName' |
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self.latitude_keys = [ |
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'XMP:GPSLatitude', |
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# 'QuickTime:GPSLatitude', |
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'Composite:GPSLatitude' |
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] |
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self.longitude_keys = [ |
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'XMP:GPSLongitude', |
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# 'QuickTime:GPSLongitude', |
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'Composite:GPSLongitude' |
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] |
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self.latitude_ref_key = 'EXIF:GPSLatitudeRef' |
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self.longitude_ref_key = 'EXIF:GPSLongitudeRef' |
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self.set_gps_ref = False |
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def get_date_taken(self): |
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"""Get the date which the photo was taken. |
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The date value returned is defined by the min() of mtime and ctime. |
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:returns: time object or None for non-photo files or 0 timestamp |
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""" |
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if(not self.is_valid()): |
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return None |
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source = self.source |
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seconds_since_epoch = min(os.path.getmtime(source), os.path.getctime(source)) # noqa |
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exif = self.get_exiftool_attributes() |
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for date_key in self.exif_map['date_taken']: |
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if date_key in exif: |
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# Example date strings we want to parse |
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# 2015:01:19 12:45:11-08:00 |
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# 2013:09:30 07:06:05 |
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date = re.search('([0-9: ]+)([-+][0-9:]+)?', exif[date_key]) |
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if(date is not None): |
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date_string = date.group(1) |
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date_offset = date.group(2) |
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try: |
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exif_seconds_since_epoch = time.mktime( |
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datetime.strptime( |
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date_string, |
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'%Y:%m:%d %H:%M:%S' |
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).timetuple() |
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) |
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if(exif_seconds_since_epoch < seconds_since_epoch): |
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seconds_since_epoch = exif_seconds_since_epoch |
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if date_offset is not None: |
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offset_parts = date_offset[1:].split(':') |
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offset_seconds = int(offset_parts[0]) * 3600 |
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offset_seconds = offset_seconds + int(offset_parts[1]) * 60 # noqa |
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if date_offset[0] == '-': |
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seconds_since_epoch - offset_seconds |
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elif date_offset[0] == '+': |
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seconds_since_epoch + offset_seconds |
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except: |
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pass |
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if(seconds_since_epoch == 0): |
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return None |
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return time.gmtime(seconds_since_epoch) |
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jmathai /
elodie
