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nautilus-columns.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# nautilus-columns.py
# this script can installed to the current user account by running the
# following commands:
# sudo apt-get install python-FileManager python-mutagen python-pyexiv2
# python-kaa-metadata
# cp nautilus-columns.py /usr/share/nautilus-python/extensions/
# chmod a+x /usr/share/nautilus-python/extensions/nautilus-columns.py
# change log:
# geb666: original bsc.py, based on work by Giacomo Bordiga
# jmdsdf: version 2 adds extra ID3 and EXIF tag support
# jmdsdf: added better error handling for ID3 tags, added mp3 length support,
# distinguished between exif image size and true image size
# SabreWolfy: set consistent hh:mm:ss format, fixed bug with no ID3 information
# throwing an unhandled exception
# jmdsdf: fixed closing file handles with mpinfo (thanks gueba)
# jmdsdf: fixed closing file handles when there's an exception
# (thanks Pitxyoki)
# jmdsdf: added video parsing (work based on enbeto, thanks!)
# jmdsdf: added FLAC audio parsing through kaa.metadata
# (thanks for the idea l-x-l)
# jmdsdf: added trackno, added mkv file support (thanks ENigma885)
# jmdsdf: added date/album for flac/video (thanks eldon.t)
# jmdsdf: added wav file support thru pyexiv2
# jmdsdf: added sample rate file support thru mutagen and kaa
# (thanks for the idea N'ko)
# jmdsdf: fix with tracknumber for FLAC, thanks l-x-l
# draxus: support for pdf files
# arun (engineerarun@gmail.com): made changes to work with naulitus 3.x
# Andrew@webupd8.org: get EXIF support to work with FileManager 3
# Julien Blanc: fix bug caused by missing Exif.Image.Software key
# Andreas Schönfelder: show stars as rating
# John Bray: Fix Icon View, re-write title, description and creator
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import gi
try:
gi.require_version('Nautilus', '3.0')
gi.require_version('GObject', '2.0')
gi.require_version('GExiv2', '0.10')
except ValueError as error:
print(error)
exit(1)
from gi.repository import Nautilus as FileManager
from gi.repository import GObject
from gi.repository import GExiv2
import urllib
# for id3 support
from mutagen.easyid3 import EasyID3
from mutagen.mp3 import MPEGInfo
# for reading image dimensions
from PIL import Image
# for reading pdf
from PyPDF2 import PdfFileReader
# for reading videos. for future improvement, this can also read mp3!
from plumbum import local
from plumbum import CommandNotFound
# locale
import sys
import os
import json
import math
import locale
import gettext
APP = 'nautilus-columns'
ROOTDIR = '/usr/share/'
LANGDIR = os.path.join(ROOTDIR, 'locale-langpack')
try:
current_locale, encoding = locale.getdefaultlocale()
language = gettext.translation(APP, LANGDIR, [current_locale])
language.install()
if sys.version_info[0] == 3:
_ = language.gettext
else:
_ = language.ugettext
except Exception as e:
print(e)
_ = str
def get_resolution_unit(metadata):
try:
value = metadata.get_tag_string('Exif.Image.ResolutionUnit')
except Exception:
value == -1
if value == '1':
return _('No absolute unit of measurement')
elif value == '2':
return _('Inch')
elif value == '3':
return _('Centimeter')
return _('Unknown')
def get_orientation(metadata):
try:
value = metadata.get_orientation()
except Exception:
value == -1
if value == GExiv2.Orientation.UNSPECIFIED:
return _('Unknown')
elif value == GExiv2.Orientation.NORMAL:
return _('Normal')
elif value == GExiv2.Orientation.HFLIP or\
value == GExiv2.Orientation.VFLIP or\
value == GExiv2.Orientation.ROT_90_HFLIP or\
value == GExiv2.Orientation.ROT_90_VFLIP:
return _('Flipped')
elif value == GExiv2.Orientation.ROT_180:
return _('180º')
elif value == GExiv2.Orientation.ROT_90:
return _('90º')
elif value == GExiv2.Orientation.ROT_270:
return _('270º')
return _('Unknown')
def get_metering_mode(metadata):
try:
value = metadata.get_tag_string('Exif.Photo.MeteringMode')
except Exception:
value = -1
if value == '0':
return _('Unknown')
elif value == '1':
return _('Average')
elif value == '2':
return _('Center weighted average')
elif value == '3':
return _('Spot')
elif value == '4':
return _('Multi spot')
elif value == '5':
return _('Pattern')
elif value == '6':
return _('Partial')
elif value == '255':
return _('other ')
return _('Unknown')
def get_light_source(metadata):
try:
value = metadata.get_tag_string('Exif.Photo.LightSource')
except Exception:
value = -1
if value == '0':
return _('Unknown')
elif value == '1':
return _('Daylight')
elif value == '2':
return _('Fluorescent')
elif value == '3':
return _('Tungsten (incandescent light)')
elif value == '4':
return _('Flash')
elif value == '9':
return _('Fine weather')
elif value == '10':
return _('Cloudy weather')
elif value == '11':
return _('Shade')
elif value == '12':
return _('Daylight fluorescent (D 5700 - 7100K)')
elif value == '13':
return _('Day white fluorescent (N 4600 - 5400K)')
elif value == '14':
return _('Cool white fluorescent (W 3900 - 4500K)')
elif value == '15':
return _('White fluorescent (WW 3200 - 3700K)')
elif value == '17':
return _('Standard light A')
elif value == '18':
return _('Standard light B')
elif value == '19':
return _('Standard light C')
elif value == '20':
return _('D55')
elif value == '21':
return _('D65')
elif value == '22':
return _('D75')
elif value == '23':
return _('D50')
elif value == '24':
return _('ISO studio tungsten')
elif value == '255':
return _('Other light source')
return _('Unknown')
def get_exposure_mode(metadata):
try:
value = metadata.get_tag_string('Exif.Photo.ExposureMode')
except Exception:
value = -1
if value == '0':
return _('Auto exposure')
elif value == '1':
return _('Manual exposure')
elif value == '2':
return _('Auto bracket')
return _('Unknown')
def get_gain_control(metadata):
try:
value = metadata.get_tag_string('Exif.Photo.GainControl')
except Exception:
value = -1
if value == '0':
return _('None')
elif value == '1':
return _('Low Gain Up')
elif value == '2':
return _('High Gain Up')
elif value == '3':
return _('Low Gain Down')
elif value == '4':
return _('High Gain Down')
return _('Unknown')
def get_flash(metadata):
try:
value = metadata.get_tag_string('Exif.Photo.Flash')
except Exception:
value = -1
if value == '0':
return _('Flash did not fire')
elif value == '1':
return _('Flash fired')
elif value == '2':
return _('Strobe return light detected')
elif value == '4':
return _('Strobe return light not detected')
elif value == '8':
return _('Compulsory flash mode')
elif value == '16':
return _('Auto mode')
elif value == '32':
return _('No flash function')
elif value == '64':
return _('Red eye reduction mode')
return _('Unknown')
class MediaInfo:
"""
MediaInfo wraps the mediainfo command and pulls the data into an object
form:
metadata = MediaInfo('multimedia-file.mov')
"""
def __init__(self, path_to_video):
self.path_to_video = path_to_video
try:
mediainfo = local['mediainfo']
except CommandNotFound:
raise IOError('mediainfo not found.')
if os.path.isfile(path_to_video):
options = ['--Output=JSON', '-f', path_to_video]
data = json.loads(mediainfo(options))
for metadata in data['media']['track']:
if metadata['@type'] == 'General':
metadata = data['media']['track'][0]
self._format = metadata.get('Format', _('Unknown'))
self._duration = metadata.get('Duration', _('Unknown'))
self._overallbitrate = metadata.get('OverallBitRate', _('Unknown'))
self._framerate = metadata.get('FrameRate', _('Unknown'))
self._framecount = metadata.get('FrameCount', _('Unknown'))
self._title = metadata.get('Title', _('Unknown'))
elif metadata['@type'] == 'Video':
self._videoformat = metadata.get('Format', _('Unknown'))
self._width = metadata.get('Width', _('Unknown'))
self._height = metadata.get('Height', _('Unknown'))
self._bitdepth = metadata.get('BitDepth', _('Unknown'))
elif metadata['@type'] == 'Audio':
self._audioformat = metadata.get('Format', _('Unknown'))
else:
self._format = _('Unknown')
self._duration = _('Unknown')
self._overallbitrate = _('Unknown')
self._framerate = _('Unknown')
self._framecount = _('Unknown')
self._videoformat = _('Unknown')
self._width = _('Unknown')
self._height = _('Unknown')
self._bitdepth = _('Unknown')
self._audioformat = _('Unknown')
def get_format(self):
"""TODO: Docstring for get_format.
:returns: TODO
"""
return self._format
def get_duration(self):
"""TODO: Docstring for get_duration.
:returns: TODO
"""
return self._duration
def get_overallbitrate(self):
"""TODO: Docstring for get_overallbitrate.
:returns: TODO
"""
return self._overallbitrate
def get_framerate(self):
"""TODO: Docstring for get_framerate.
:returns: TODO
"""
return self._framerate
def get_framecount(self):
"""TODO: Docstring for get_framecount.
:returns: TODO
"""
return self._framecount
def get_videoformat(self):
"""TODO: Docstring for get_videoformat.
:returns: TODO
"""
return self._videoformat
def get_width(self):
"""TODO: Docstring for get_width.
:returns: TODO
"""
return self._width
def get_height(self):
"""TODO: Docstring for get_height.
:returns: TODO
"""
return self._height
def get_bitdepth(self):
"""TODO: Docstring for get_bitdepth.
:returns: TODO
"""
return self._bitdepth
def get_audioformat(self):
"""TODO: Docstring for get_audioformat.
:returns: TODO
"""
return self._audioformat
def get_title(self):
"""TODO: Docstring for get_title.
:returns: TODO
"""
return self._title
def get_description(self):
"""TODO: Docstring for get_description.
:returns: TODO
"""
return self._description
def get_duration_string(self):
"""TODO: Docstring for get_duration_string.
:returns: TODO
"""
if self._duration == _('Unknown'):
return self._duration
else:
seconds = int(float(self._duration))
duration = '{:02d}:{:02d}:{:02d}'.format(int(seconds / 3600),
int(seconds / 60 % 60),
int(seconds % 60))
return duration
class ColumnExtension(GObject.GObject,
FileManager.ColumnProvider,
FileManager.InfoProvider):
def __init__(self):
pass
def get_columns(self):
return (
FileManager.Column(name='title',
attribute='title',
label=_('Title'),
description=_('Title')),
FileManager.Column(name='description',
attribute='description',
label=_('Description'),
description=_('Description')),
FileManager.Column(name='album_column',
attribute='album',
label=_('Album'),
description=_('Album')),
FileManager.Column(name='creator_column',
attribute='creator',
label=_('Creator'),
description=_('Creator (Author/Artist)')),
FileManager.Column(name='tracknumber_column',
attribute='tracknumber',
label=_('Track'),
description=_('Track number')),
FileManager.Column(name='genre_column',
attribute='genre',
label=_('Genre'),
description=_('Genre')),
FileManager.Column(name='date_column',
attribute='date',
label=_('Date'),
description=_('Date')),
FileManager.Column(name='bitrate_column',
attribute='bitrate',
label=_('Bitrate'),
description=_('Audio Bitrate in kilo bits per \
second')),
FileManager.Column(name='samplerate_column',
attribute='samplerate',
label=_('Sample rate'),
description=_('Sample rate in Hz')),
FileManager.Column(name='length_column',
attribute='length',
label=_('Length'),
description=_('Length of audio')),
# Images
FileManager.Column(name='exposure_time_column',
attribute='exposure_time',
label=_('Exposure time'),
description=_('Exposure time in seconds')),
FileManager.Column(name='fnumber_column',
attribute='fnumber',
label=_('F number'),
description=_('Exposure F number')),
FileManager.Column(name='fnumber_focal_length',
attribute='focal_length',
label=_('Focal length'),
description=_('The actual focal length of the \
lens, in mm.')),
FileManager.Column(name='gps_altitude_column',
attribute='gps_altitude',
label=_('Altitude'),
description=_('GPS Altitude')),
FileManager.Column(name='gps_latitude_column',
attribute='gps_latitude',
label=_('Latitude'),
description=_('GPS Latitude')),
FileManager.Column(name='gps_longitude_column',
attribute='gps_longitude',
label=_('Longitude'),
description=_('GPS Longitude')),
FileManager.Column(name='iso_speed_column',
attribute='iso_speed',
label=_('ISO'),
description=_('ISO Speed')),
FileManager.Column(name='orientation_column',
attribute='orientation',
label=_('Orientation'),
description=_('Orientation')),
FileManager.Column(name='model_column',
attribute='model',
label=_('Model'),
description=_('Model')),
FileManager.Column(name='resolution_unit_column',
attribute='resolution_unit',
label=_('Resolution unit'),
description=_('The unit for measuring')),
FileManager.Column(name='xresolution_column',
attribute='xresolution',
label=_('X resolution'),
description=_('The resolution in the x axis')),
FileManager.Column(name='yresolution_column',
attribute='yresolution',
label=_('Y resolution'),
description=_('The resolution in the y axis')),
FileManager.Column(name='datetime_original_column',
attribute='datetime_original',
label=_('Capture date'),
description=_('Photo capture date')),
FileManager.Column(name='shutter_speed_value_column',
attribute='shutter_speed_value',
label=_('Shutter speed'),
description=_('Shutter speed')),
FileManager.Column(name='aperture_value_column',
attribute='aperture_value',
label=_('Aperture'),
description=_('The lens aperture')),
FileManager.Column(name='brightness_value_column',
attribute='brightness_value',
label=_('Brightness'),
description=_('Brightness')),
FileManager.Column(name='exposure_bias_value_column',
attribute='exposure_bias_value',
label=_('Exposure'),
description=_('The exposure bias')),
FileManager.Column(name='max_aperture_value_column',
attribute='max_aperture_value',
label=_('Max aperture'),
description=_(
'The smallest F number of the lens')),
FileManager.Column(name='metering_mode_column',
attribute='metering_mode',
label=_('Metering mode'),
description=_('The metering mode')),
FileManager.Column(name='light_source_column',
attribute='light_source',
label=_('Light source'),
description=_('The kind of light source')),
FileManager.Column(name='flash_column',
attribute='flash',
label=_('Flash'),
description=_('Indicates the status of flash \
when the image was shot')),
FileManager.Column(name='exposure_mode_column',
attribute='exposure_mode',
label=_('Exposure mode'),
description=_('The exposure mode set when the \
image was shot')),
FileManager.Column(name='gain_control_column',
attribute='gain_control',
label=_('Gain control'),
description=_('The degree of overall image \
gain adjustment')),
FileManager.Column(name='width_column',
attribute='width',
label=_('Width'),
description=_(
'Image/video/pdf width (pixel/mm)')),
FileManager.Column(name='height_column',
attribute='height',
label=_('Height'),
description=_(
'Image/video/pdf height (pixel/mm)')),
FileManager.Column(name='pages_column',
attribute='pages',
label=_('Pages'),
description=_('Number of pages')),
)
def update_file_info(self, file):
# set defaults to blank
file.add_string_attribute('title', '')
file.add_string_attribute('description', '')
file.add_string_attribute('album', '')
file.add_string_attribute('creator', '')
file.add_string_attribute('tracknumber', '')
file.add_string_attribute('genre', '')
file.add_string_attribute('date', '')
file.add_string_attribute('bitrate', '')
file.add_string_attribute('samplerate', '')
file.add_string_attribute('length', '')
file.add_string_attribute('datetime_original', '')
file.add_string_attribute('exposure_time', '')
file.add_string_attribute('fnumber', '')
file.add_string_attribute('focal_length', '')
file.add_string_attribute('gps_altitude', '')
file.add_string_attribute('gps_latitude', '')
file.add_string_attribute('gps_longitude', '')
file.add_string_attribute('iso_speed', '')
file.add_string_attribute('get_orientation', '')
file.add_string_attribute('model', '')
file.add_string_attribute('resolution_unit', '')
file.add_string_attribute('xresolution', '')
file.add_string_attribute('yresolution', '')
file.add_string_attribute('shutter_speed_value', '')
file.add_string_attribute('aperture_value', '')
file.add_string_attribute('brightness_value', '')
file.add_string_attribute('exposure_bias_value', '')
file.add_string_attribute('max_aperture_value', '')
file.add_string_attribute('metering_mode', '')
file.add_string_attribute('light_source', '')
file.add_string_attribute('flash', '')
file.add_string_attribute('exposure_mode', '')
file.add_string_attribute('gain_control', '')
file.add_string_attribute('width', '')
file.add_string_attribute('height', '')
file.add_string_attribute('pages', '')
if file.get_uri_scheme() != 'file':
return
# strip file:// to get absolute path
filename = urllib.parse.unquote_plus(file.get_uri()[7:])
# mp3 handling
if file.is_mime_type('audio/mpeg'):
# attempt to read ID3 tag
try:
audio = EasyID3(filename)
# sometimes the audio variable will not have one of these items
# defined, that's why there is this long try / except attempt
try:
if 'title' in audio.keys():
file.add_string_attribute('title', audio['title'][0])
else:
file.add_string_attribute('title', '')
except Exception:
file.add_string_attribute('title', _('Error'))
try:
file.add_string_attribute('album', audio['album'][0])
except Exception:
file.add_string_attribute('album', _('Error'))
try:
file.add_string_attribute('creator', audio['artist'][0])
except Exception:
file.add_string_attribute('creator', _('Error'))
try:
file.add_string_attribute('tracknumber',
audio['tracknumber'][0])
except Exception:
file.add_string_attribute('tracknumber', _('Error'))
try:
file.add_string_attribute('genre', audio['genre'][0])
except Exception:
file.add_string_attribute('genre', _('Error'))
try:
file.add_string_attribute('date', audio['date'][0])
except Exception:
file.add_string_attribute('date', _('Error'))
except Exception:
# [SabreWolfy] some files have no ID3 tag and will throw this
# exception:
file.add_string_attribute('title', '')
file.add_string_attribute('description', '')
file.add_string_attribute('album', '')
file.add_string_attribute('creator', '')
file.add_string_attribute('tracknumber', '')
file.add_string_attribute('genre', '')
file.add_string_attribute('date', '')
# try to read MP3 information (bitrate, length, samplerate)
try:
mpfile = open(filename)
mpinfo = MPEGInfo(mpfile)
file.add_string_attribute(
'bitrate', str(mpinfo.bitrate / 1000) + ' Kbps')
file.add_string_attribute(
'samplerate', str(mpinfo.sample_rate) + ' Hz')
# [SabreWolfy] added consistent formatting of times in format
# hh:mm:ss
# [SabreWolfy[ to allow for correct column sorting by length
mp3length = '%02i:%02i:%02i' % ((int(mpinfo.length / 3600)),
(int(mpinfo.length / 60 % 60)),
(int(mpinfo.length % 60)))
mpfile.close()
file.add_string_attribute('length', mp3length)
except Exception:
file.add_string_attribute('bitrate', _('Error'))
file.add_string_attribute('length', _('Error'))
file.add_string_attribute('samplerate', _('Error'))
try:
mpfile.close()
except Exception:
pass
# image handling
if file.get_mime_type().split('/')[0] in ('image'):
# EXIF handling routines
try:
metadata = GExiv2.Metadata(filename)
try:
file.add_string_attribute(
'datetime_original',
metadata.get_tag_string('Exif.Image.DateTime'))
except Exception:
file.add_string_attribute('datetime_original', '')
try:
file.add_string_attribute(
'creator',
metadata.get_tag_string('Xmp.dc.creator'))
except Exception:
file.add_string_attribute('creator', '')
try:
file.add_string_attribute(
'description',
metadata.get_tag_string('Exif.Image.ImageDescription'))
except Exception:
file.add_string_attribute('description', '')
try:
x=str(metadata.get_tag_string('Xmp.dc.title'))
file.add_string_attribute(
'title',
x[17:])
except Exception:
file.add_string_attribute('title', '')
try:
file.add_string_attribute(
'exposure_time',
metadata.get_exposure_time())
except Exception:
file.add_string_attribute('exposure_time', '')
try:
file.add_string_attribute(
'fnumber',
metadata.get_fnumber())
except Exception:
file.add_string_attribute('fnumber', '')
try:
file.add_string_attribute(
'focal_length',
metadata.get_focal_length())
except Exception:
file.add_string_attribute('focal_length', '')
try:
file.add_string_attribute(
'gps_altitude',
metadata.get_gps_altitude())
except Exception:
file.add_string_attribute('gps_altitude', '')
try:
file.add_string_attribute(
'gps_latitude',
metadata.get_gps_latitude())
except Exception:
file.add_string_attribute('gps_latitude', '')
try:
file.add_string_attribute(
'gps_longitude',
metadata.get_gps_longitude())
except Exception:
file.add_string_attribute('gps_longitude', '')
try:
file.add_string_attribute(
'iso_speed',
metadata.get_iso_speed())
except Exception:
file.add_string_attribute('iso_speed', '')
file.add_string_attribute('orientation',
get_orientation(metadata))
try:
file.add_string_attribute(
'model',
metadata.get_tag_string('Exif.Image.Model'))
except Exception:
file.add_string_attribute('model', '')
file.add_string_attribute('resolution_unit',
get_resolution_unit(metadata))
try:
file.add_string_attribute(
'xresolution',
metadata.get_tag_string('Exif.Image.XResolution'))
except Exception:
file.add_string_attribute('xresolution', '')
try:
file.add_string_attribute(
'yresolution',
metadata.get_tag_string('Exif.Image.YResolution'))
except Exception:
file.add_string_attribute('yresolution', '')
try:
file.add_string_attribute(
'shutter_speed_value',
metadata.get_tag_string(
'Exif.Photo.ShutterSpeedValue'))
except Exception:
file.add_string_attribute('shutter_speed_value', '')
try:
file.add_string_attribute(
'aperture_value',
metadata.get_tag_string(
'Exif.Photo.ApertureValue'))
except Exception:
file.add_string_attribute('aperture_value', '')
try:
file.add_string_attribute(
'brightness_value',
metadata.get_tag_string(
'Exif.Photo.BrightnessValue'))
except Exception:
file.add_string_attribute('brightness_value', '')
try:
file.add_string_attribute(
'brightness_value',
metadata.get_tag_string(
'Exif.Photo.BrightnessValue'))
except Exception:
file.add_string_attribute('brightness_value', '')
try:
file.add_string_attribute(
'exposure_bias_value',
metadata.get_tag_string(
'Exif.Photo.ExposureBiasValue'))
except Exception:
file.add_string_attribute('exposure_bias_value', '')
try:
file.add_string_attribute(
'max_aperture_value',
metadata.get_tag_string(
'Exif.Photo.MaxApertureValue'))
except Exception:
file.add_string_attribute('max_aperture_value', '')
file.add_string_attribute(
'metering_mode',
get_metering_mode(metadata))
file.add_string_attribute(
'light_source',
get_light_source(metadata))
file.add_string_attribute(
'flash',
get_flash(metadata))
file.add_string_attribute(
'exposure_mode',
get_exposure_mode(metadata))
file.add_string_attribute(
'gain_control',
get_gain_control(metadata))
except Exception:
file.add_string_attribute('datetime_original', '')
file.add_string_attribute('creator', '')
file.add_string_attribute('title', '')
file.add_string_attribute('description', '')
file.add_string_attribute('exposure_time', '')
file.add_string_attribute('fnumber', '')
file.add_string_attribute('focal_length', '')
file.add_string_attribute('gps_altitude', '')
file.add_string_attribute('gps_latitude', '')
file.add_string_attribute('gps_longitude', '')
file.add_string_attribute('iso_speed', '')
file.add_string_attribute('get_orientation', '')
file.add_string_attribute('model', '')
file.add_string_attribute('resolution_unit', '')
file.add_string_attribute('xresolution', '')
file.add_string_attribute('yresolution', '')
file.add_string_attribute('shutter_speed_value', '')
file.add_string_attribute('aperture_value', '')
file.add_string_attribute('brightness_value', '')
file.add_string_attribute('exposure_bias_value', '')
file.add_string_attribute('max_aperture_value', '')
file.add_string_attribute('metering_mode', '')
file.add_string_attribute('light_source', '')
file.add_string_attribute('flash', '')
file.add_string_attribute('exposure_mode', '')
file.add_string_attribute('gain_control', '')
try:
im = Image.open(filename)
try:
file.add_string_attribute('width', str(im.size[0]))
except Exception:
file.add_string_attribute('width', _('Error'))
try:
file.add_string_attribute('height', str(im.size[1]))
except Exception:
file.add_string_attribute('height', _('Error'))
except Exception:
file.add_string_attribute('width', '')
file.add_string_attribute('height', '')
# video/flac handling
if file.is_mime_type('video/x-msvideo') or\
file.is_mime_type('video/mpeg') or\
file.is_mime_type('video/x-ms-wmv') or\
file.is_mime_type('video/mp4') or\
file.is_mime_type('audio/x-flac') or\
file.is_mime_type('video/x-flv') or\
file.is_mime_type('video/x-matroska') or\
file.is_mime_type('audio/x-wav'):
metadata = MediaInfo(filename)
file.add_string_attribute('format',
metadata.get_format())
file.add_string_attribute('duration',
metadata.get_duration_string())
file.add_string_attribute('overall_bitrate',
metadata.get_overallbitrate())
file.add_string_attribute('frame_count',
metadata.get_framecount())
file.add_string_attribute('video_format',
metadata.get_videoformat())
file.add_string_attribute('width',
metadata.get_width())
file.add_string_attribute('height',
metadata.get_height())
file.add_string_attribute('bit_depth',
metadata.get_bitdepth())
file.add_string_attribute('audio_format',
metadata.get_audioformat())
file.add_string_attribute('title',
metadata.get_title())
#JRB
#file.add_string_attribute('description',
# metadata.get_description())
# pdf handling
if file.is_mime_type('application/pdf'):
try:
f = open(filename, 'rb')
pdf = PdfFileReader(f)
info = pdf.getDocumentInfo()
try:
file.add_string_attribute(
'title',
info.title if info.title is not None else '')
except Exception:
file.add_string_attribute('title', _('Error'))
try:
file.add_string_attribute(
'description',
info.subject if info.subject is not None else '')
except Exception:
file.add_string_attribute('description', _('Error'))
try:
file.add_string_attribute(
'creator',
info.author if info.author is not None else '')
except Exception:
file.add_string_attribute('creator', _('Error'))
try:
file.add_string_attribute(
'pages',
str(pdf.getNumPages()))
except Exception:
file.add_string_attribute('pages', _('Error'))
if pdf.getNumPages() > 0:
try:
width = abs(pdf.getPage(0).mediaBox.upperRight[0] -
pdf.getPage(0).mediaBox.lowerLeft[0])
file.add_string_attribute(
'width',
str(int(float(width) * math.sqrt(2.0) / 4.0)))
except Exception:
file.add_string_attribute('width', '')
try:
height = abs(pdf.getPage(0).mediaBox.upperRight[1] -
pdf.getPage(0).mediaBox.lowerLeft[1])
file.add_string_attribute(
'height',
str(int(float(height) * math.sqrt(2.0) / 4.0)))
except Exception:
file.add_string_attribute('height', '')
else:
file.add_string_attribute('width', '')
file.add_string_attribute('height', '')
f.close()
except Exception:
file.add_string_attribute('title', _('Error'))
file.add_string_attribute('description', _('Error'))
file.add_string_attribute('creator', _('Error'))
file.add_string_attribute('pages', _('Error'))
file.add_string_attribute('width', _('Error'))
file.add_string_attribute('height', _('Error'))
self.get_columns()