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#!/usr/bin/python
# -*- coding: latin1 -*-
### Copyright (C) 2007-11 Damon Lynch <damonlynch@gmail.com>
### 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 2 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, write to the Free Software
### Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
DOWNLOAD_VIDEO = True
import os
import datetime
import time
import subprocess
import tempfile
import multiprocessing
import logging
logger = multiprocessing.get_logger()
import gtk
import paths
import rpdfile
try:
from hachoir_core.cmd_line import unicodeFilename
from hachoir_parser import createParser
from hachoir_metadata import extractMetadata
except ImportError:
DOWNLOAD_VIDEO = False
if DOWNLOAD_VIDEO:
def version_info():
from hachoir_metadata.version import VERSION
return VERSION
def get_video_THM_file(full_filename):
"""
Checks to see if a thumbnail file (THM) is in the same directory as the
file. Expects a full path to be part of the file name.
Returns the filename, including path, if found, else returns None.
"""
f = None
name, ext = os.path.splitext(full_filename)
for e in rpdfile.VIDEO_THUMBNAIL_FILE_EXTENSIONS:
if os.path.exists(name + '.' + e):
f = name + '.' + e
break
if os.path.exists(name + '.' + e.upper()):
f = name + '.' + e.upper()
break
return f
class VideoMetaData():
def __init__(self, filename):
"""
Initialize by loading metadata using hachoir
"""
self.filename = filename
self.u_filename = unicodeFilename(filename)
self.metadata = None
def _kaa_get(self, key, missing, stream=None):
if not hasattr(self, 'info'):
try:
from kaa.metadata import parse
except ImportError:
msg = """The package Kaa metadata does not exist.
It is needed to access FPS and codec video file metadata."""
logger.error(msg)
self.info = None
else:
self.info = parse(self.filename)
if self.info:
if stream != None:
v = self.info['video'][stream][key]
else:
v = self.info[key]
else:
v = None
if v:
return str(v)
else:
return missing
def _load_hachoir_metadata_parser(self):
self.parser = createParser(self.u_filename, self.filename)
self.metadata = extractMetadata(self.parser)
def _get(self, key, missing):
if self.metadata is None:
self._load_hachoir_metadata_parser()
try:
v = self.metadata.get(key)
except:
v = missing
return v
def date_time(self, missing=''):
return self._get('creation_date', missing)
def time_stamp(self, missing=''):
"""
Returns a float value representing the time stamp, if it exists
"""
dt = self.date_time(missing=None)
if dt:
# convert it to a time stamp (not optimal, but better than nothing!)
v = time.mktime(dt.timetuple())
else:
v = missing
return v
def codec(self, stream=0, missing=''):
return self._kaa_get('codec', missing, stream)
def length(self, missing=''):
"""
return the duration (length) of the video, rounded to the nearest second, in string format
"""
delta = self.metadata.get('duration')
l = '%.0f' % (86400 * delta.days + delta.seconds + float('.%s' % delta.microseconds))
return l
def width(self, missing=''):
v = self._get('width', missing)
if v != None:
return str(v)
else:
return None
def height(self, missing=''):
v = self._get('height', missing)
if v != None:
return str(v)
else:
return None
def frames_per_second(self, stream=0, missing=''):
fps = self._kaa_get('fps', missing, stream)
try:
fps = '%.0f' % float(fps)
except:
pass
return fps
def fourcc(self, stream=0, missing=''):
return self._kaa_get('fourcc', missing, stream)
class DummyMetaData():
"""
Class which gives metadata values for an imaginary video.
Useful for displaying in preference examples etc. when no video is ready to
be downloaded.
See VideoMetaData class for documentation of class methods.
"""
def __init__(self, filename):
pass
def date_time(self, missing=''):
return datetime.datetime.now()
def codec(self, stream=0, missing=''):
return 'H.264 AVC'
def length(self, missing=''):
return '57'
def width(self, stream=0, missing=''):
return '1920'
def height(self, stream=0, missing=''):
return '1080'
def frames_per_second(self, stream=0, missing=''):
return '24'
def fourcc(self, stream=0, missing=''):
return 'AVC1'
if __name__ == '__main__':
import sys
if (len(sys.argv) != 2):
print 'Usage: ' + sys.argv[0] + ' path/to/video/containing/metadata'
sys.exit(0)
else:
m = VideoMetaData(sys.argv[1])
dt = m.date_time()
if dt:
print dt.strftime('%Y%m%d-%H:%M:%S')
print "codec: %s" % m.codec()
print "%s seconds" % m.length()
print "%sx%s" % (m.width(), m.height())
print "%s fps" % m.frames_per_second()
print "Fourcc: %s" % (m.fourcc())
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