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Diffstat (limited to 'rapid/metadataexiftool.py')
| -rwxr-xr-x | rapid/metadataexiftool.py | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/rapid/metadataexiftool.py b/rapid/metadataexiftool.py deleted file mode 100755 index 2524da1..0000000 --- a/rapid/metadataexiftool.py +++ /dev/null @@ -1,226 +0,0 @@ -#!/usr/bin/python -# -*- coding: latin1 -*- - -### Copyright (C) 2011-2014 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 -### USA - -import subprocess -import json -import datetime, time -import string - -import multiprocessing -import logging -logger = multiprocessing.get_logger() - -def version_info(): - """returns the version of exiftool being used""" - try: - # unfortunately subprocess.check_output does not exist on python 2.6 - proc = subprocess.Popen(['exiftool', '-ver'], stdout=subprocess.PIPE) - v = proc.communicate()[0].strip() - except OSError: - v = None - return v - -EXIFTOOL_VERSION = version_info() - -class ExifToolMetaData: - """ - Class to use when a python based metadata parser fails to correctly load - necessary metadata. Calls exiftool as a subprocess. It is therefore slow, - but in contrast to exiv2 or kaa metadata, exiftool somtimes gives better - output. - """ - def __init__(self, filename): - self.filename = filename - self.metadata = None - self.metadata_string_format = None - self.exiftool_error = "Error encountered using exiftool with file %s" - self.exiftool_output = "Unexpected output from exiftool with file %s" - - def _get(self, key, missing): - - if key == "VideoStreamType" or "FileNumber": - # special case: want exiftool's string formatting - if self.metadata_string_format is None: - try: - proc = subprocess.Popen(['exiftool', '-j', self.filename], stdout=subprocess.PIPE) - s = proc.communicate()[0] - except: - logger.error(self.exiftool_error, self.filename) - return missing - try: - self.metadata_string_format = json.loads(s) - except: - logger.error(self.exiftool_output, self.filename) - return missing - - try: - v = self.metadata_string_format[0][key] - except: - return missing - return v - - elif self.metadata is None: - # note: exiftool's string formatting is OFF (-n switch) - try: - proc = subprocess.Popen(['exiftool', '-j', '-n', self.filename], stdout=subprocess.PIPE) - s = proc.communicate()[0] - except: - logger.error(self.exiftool_error, self.filename) - return missing - try: - self.metadata = json.loads(s) - except: - logger.error(self.exiftool_output, self.filename) - return missing - - try: - v = self.metadata[0][key] - except: - return missing - return v - - - def date_time(self, missing=''): - """ - Returns in python datetime format the date and time the image was - recorded. - - Trys to get value from key "DateTimeOriginal" - If that fails, tries "CreateDate" - - Returns missing either metadata value is not present. - """ - d = self._get('DateTimeOriginal', None) - if d is None: - d = self._get('CreateDate', None) - if d is None: - d = self._get('FileModifyDate', None) - if d is not None: - try: - # returned value may or may not have a time offset - # strip it if need be - dt = d[:19] - dt = datetime.datetime.strptime(dt, "%Y:%m:%d %H:%M:%S") - except: - logger.error("Error reading date metadata with file %s", self.filename) - return missing - - return dt - else: - return 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 file_number(self, missing=''): - v = self._get("FileNumber", None) - if v is not None: - return str(v) - else: - return missing - - def width(self, missing=''): - v = self._get('ImageWidth', None) - if v is not None: - return str(v) - else: - return missing - - def height(self, missing=''): - v = self._get('ImageHeight', None) - if v is not None: - return str(v) - else: - return missing - - def length(self, missing=''): - """ - return the duration (length) of the video, rounded to the nearest second, in string format - """ - v = self._get("Duration", None) - if v is not None: - try: - v = float(v) - v = "%0.f" % v - except: - return missing - return v - else: - return missing - - def frames_per_second(self, stream=0, missing=''): - """ - value stream is ignored (kept for compatibilty with code calling kaa) - """ - v = self._get("FrameRate", None) - if v is None: - v = self._get("VideoFrameRate", None) - - if v is None: - return missing - try: - v = '%.0f' % v - except: - return missing - return v - - def codec(self, stream=0, missing=''): - """ - value stream is ignored (kept for compatibilty with code calling kaa) - """ - v = self._get("VideoStreamType", None) - if v is None: - v = self._get("VideoCodec", None) - if v is not None: - return v - else: - return missing - - def fourcc(self, stream=0, missing=''): - """ - value stream is ignored (kept for compatibilty with code calling kaa) - """ - return self._get("CompressorID", missing) - -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 = ExifToolMetaData(sys.argv[1]) - dt = m.date_time() - print dt - print "%sx%s" % (m.width(), m.height()) - print m.length() - print m.frames_per_second() - print m.codec() |