from subprocess import PIPE, Popen, DEVNULL
import shlex
import base64
+from copy import deepcopy
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
############################################################
# utility functions
-def eprint(lvl=0, *args, **kwargs):
- v = cfg['verbosity'] if 'cfg' in globals() else 0
+def eprint(lvl, *args, vo=0, **kwargs):
+ v = cfg['verbosity'] if 'cfg' in globals() else vo
if lvl <= v:
print('LINE %d: ' % currentframe().f_back.f_lineno, file=sys.stderr, end = '')
print(*args, file=sys.stderr, **kwargs)
############################################################
# configuration
-def configure():
- # set defaults
- global cfg
- cfg = {
+class ffConfig:
+ """ Configuration class with only class attributes, not instantiated."""
+ cfg = None
+ cfg_dflt = {
'conffile': 'ffpreview.conf',
- 'vid': '',
+ 'vid': [''],
'outdir': '',
- 'grid': '5x5',
'grid_columns': 5,
- 'grid_rows': 5,
- 'thumb_width': '128',
+ 'grid_rows': 4,
+ 'thumb_width': '192',
'appstyle': '',
'selstyle': 'background-color: lightblue;',
'ffprobe': 'ffprobe',
'.m2p *.m2ts *.mkv *.mk3d *.mov *.mp4 *.mpeg *.mpg '
'*.ogg *.ogv *.ogv *.qt *.rmvb *.vob *.webm *.wmv'
}
- if cfg['platform'] == 'Windows':
- cfg['env']['PATH'] = sys.path[0] + os.pathsep + cfg['env']['PATH']
- cfg['exec'] = ''
-
- # parse command line arguments
- parser = argparse.ArgumentParser(
- formatter_class=argparse.RawTextHelpFormatter,
- description='Generate interactive video thumbnail preview.',
- epilog=' The -C, -i, -N, -n and -s options are mutually exclusive. If more\n'
- ' than one is supplied: -C beats -i beats -N beats -n beats -s.\n\n'
- ' The -r option causes ffpreview to ignore any of the -w, -C, -i\n'
- ' -N, -n and -s options, provided that filename, duration, start\n'
- ' and end times match, and the index file appears to be healthy.\n'
- '\nwindow controls:\n'
- ' ESC leave full screen view, quit application\n'
- ' Ctrl+Q, Ctrl-W quit application\n'
- ' Alt+Return, F toggle full screen view\n'
- ' Ctrl+G adjust window geometry for optimal fit\n'
- ' Ctrl+O show open file dialog\n'
- ' Ctrl+M open thumbnail manager\n'
- ' Double-click,\n'
- ' Return, Space open video at selected position in paused state\n'
- ' Shift+dbl-click,\n'
- ' Shift+Return play video starting at selected position\n'
- ' Mouse-2, Menu,\n'
- ' Alt+Return open the context menu\n'
- ' Up, Down,\n'
- ' PgUp, PgDown,\n'
- ' Home, End,\n'
- ' TAB, Shift+TAB move highlighted selection marker\n'
- )
- parser.add_argument('filename', nargs='*', default=[os.getcwd()], help='input video file')
- parser.add_argument('-b', '--batch', action='count', help='batch mode, do not draw window')
- parser.add_argument('-m', '--manage', action='count', help='start with thumbnail manager')
- parser.add_argument('-c', '--config', metavar='F', help='read configuration from file F')
- parser.add_argument('-g', '--grid', metavar='G', help='set grid geometry in COLS[xROWS] format')
- parser.add_argument('-w', '--width', type=int, metavar='N', help='thumbnail image width in pixel')
- parser.add_argument('-o', '--outdir', metavar='P', help='set thumbnail parent directory to P')
- parser.add_argument('-f', '--force', action='count', help='force thumbnail and index rebuild')
- parser.add_argument('-r', '--reuse', action='count', help='reuse filter settings from index file')
- parser.add_argument('-i', '--iframe', action='count', help='select only I-frames (default)')
- parser.add_argument('-n', '--nskip', type=int, metavar='N', help='select only every Nth frame')
- parser.add_argument('-N', '--nsecs', type=float, metavar='F', help='select one frame every F seconds')
- parser.add_argument('-s', '--scene', type=float, metavar='F', help='select by scene change threshold; 0 < F < 1')
- parser.add_argument('-C', '--customvf', metavar='S', help='select frames using custom filter string S')
- parser.add_argument('-S', '--start', metavar='T', help='start video analysis at time T')
- parser.add_argument('-E', '--end', metavar='T', help='end video analysis at time T')
- parser.add_argument('-v', '--verbose', action='count', help='be more verbose; repeat to increase')
- parser.add_argument('--version', action='count', help='print version info and exit')
- args = parser.parse_args()
-
- if args.version:
- print('ffpreview version %s running on python %.1f.x (%s)'
- % (_FFPREVIEW_VERSION, _PYTHON_VERSION, cfg['platform']))
- die(0)
-
- # parse config file
- defconfpath = os.path.join( # try to determine user config file
- os.environ.get('APPDATA') or
- os.environ.get('XDG_CONFIG_HOME') or
- os.path.join(os.environ['HOME'], '.config') or
- sys.path[0],
- cfg['conffile']
- )
- if args.config:
- cfg['conffile'] = args.config
- cfgfiles = [defconfpath, cfg['conffile']]
- fconf = ConfigParser(allow_no_value=True, defaults=cfg)
- cf = fconf.read(cfgfiles)
- try:
- options = fconf.options('Default')
- for option in options:
- try:
+ def __new__(cls):
+ if cls.cfg:
+ return cls
+ # initialize default values
+ if cls.cfg_dflt['platform'] == 'Windows':
+ cls.cfg_dflt['env']['PATH'] = sys.path[0] + os.pathsep + cls.cfg_dflt['env']['PATH']
+ cls.cfg_dflt['exec'] = ''
+ cfg = cls.get_defaults()
+ # parse command line arguments
+ parser = argparse.ArgumentParser(
+ formatter_class=argparse.RawTextHelpFormatter,
+ description='Generate interactive video thumbnail preview.',
+ epilog=' The -C, -i, -N, -n and -s options are mutually exclusive. If more\n'
+ ' than one is supplied: -C beats -i beats -N beats -n beats -s.\n\n'
+ ' The -r option causes ffpreview to ignore any of the -w, -C, -i\n'
+ ' -N, -n and -s options, provided that filename, duration, start\n'
+ ' and end times match, and the index file appears to be healthy.\n'
+ '\nwindow controls:\n'
+ ' ESC leave full screen view, quit application\n'
+ ' Ctrl+Q, Ctrl-W quit application\n'
+ ' Alt+Return, F toggle full screen view\n'
+ ' Ctrl+G adjust window geometry for optimal fit\n'
+ ' Ctrl+O show open file dialog\n'
+ ' Ctrl+M open thumbnail manager\n'
+ ' Double-click,\n'
+ ' Return, Space open video at selected position in paused state\n'
+ ' Shift+dbl-click,\n'
+ ' Shift+Return play video starting at selected position\n'
+ ' Mouse-2, Menu,\n'
+ ' Alt+Return open the context menu\n'
+ ' Up, Down,\n'
+ ' PgUp, PgDown,\n'
+ ' Home, End,\n'
+ ' TAB, Shift+TAB move highlighted selection marker\n'
+ )
+ parser.add_argument('filename', nargs='*', default=[os.getcwd()], help='input video file')
+ parser.add_argument('-b', '--batch', action='count', help='batch mode, do not draw window')
+ parser.add_argument('-m', '--manage', action='count', help='start with thumbnail manager')
+ parser.add_argument('-c', '--config', metavar='F', help='read configuration from file F')
+ parser.add_argument('-g', '--grid', metavar='G', help='set grid geometry in COLS[xROWS] format')
+ parser.add_argument('-w', '--width', type=int, metavar='N', help='thumbnail image width in pixel')
+ parser.add_argument('-o', '--outdir', metavar='P', help='set thumbnail parent directory to P')
+ parser.add_argument('-f', '--force', action='count', help='force thumbnail and index rebuild')
+ parser.add_argument('-r', '--reuse', action='count', help='reuse filter settings from index file')
+ parser.add_argument('-i', '--iframe', action='count', help='select only I-frames (default)')
+ parser.add_argument('-n', '--nskip', type=int, metavar='N', help='select only every Nth frame')
+ parser.add_argument('-N', '--nsecs', type=float, metavar='F', help='select one frame every F seconds')
+ parser.add_argument('-s', '--scene', type=float, metavar='F', help='select by scene change threshold; 0 < F < 1')
+ parser.add_argument('-C', '--customvf', metavar='S', help='select frames using custom filter string S')
+ parser.add_argument('-S', '--start', metavar='T', help='start video analysis at time T')
+ parser.add_argument('-E', '--end', metavar='T', help='end video analysis at time T')
+ parser.add_argument('-v', '--verbose', action='count', help='be more verbose; repeat to increase')
+ parser.add_argument('--version', action='count', help='print version info and exit')
+ args = parser.parse_args()
+ # if requested print only version and exit
+ if args.version:
+ print('ffpreview version %s running on python %.1f.x (%s)'
+ % (_FFPREVIEW_VERSION, _PYTHON_VERSION, cfg['platform']))
+ die(0)
+ # parse config file
+ if args.config:
+ cfg['conffile'] = args.config
+ else:
+ # try to locate a user config file
+ cfg['conffile'] = os.path.join(
+ os.path.join(os.environ['HOME'], '.config') or
+ os.environ.get('XDG_CONFIG_HOME') or
+ os.environ.get('APPDATA') or
+ sys.path[0],
+ cfg['conffile']
+ )
+ fconf = ConfigParser(allow_no_value=True, defaults=cfg)
+ cf = fconf.read([cfg['conffile']])
+ try:
+ vo = args.verbose if args.verbose else 0
+ for option in fconf.options('Default'):
cfg[option] = fconf.get('Default', option)
- except Exception as e:
- eprint(0, str(e))
- except Exception as e:
- eprint(0, str(e))
-
- # fix up types of non-string options
- cfg['force'] = str2bool(cfg['force'])
- cfg['reuse'] = str2bool(cfg['reuse'])
- cfg['thumb_width'] = str2int(cfg['thumb_width'])
- cfg['frame_skip'] = str2int(cfg['frame_skip'])
- cfg['time_skip'] = str2float(cfg['time_skip'])
- cfg['scene_thresh'] = str2float(cfg['scene_thresh'])
- cfg['start'] = str2float(cfg['start'])
- cfg['end'] = str2float(cfg['end'])
-
- # evaluate remaining command line args
- cfg['vid'] = args.filename
- if args.outdir:
- cfg['outdir'] = args.outdir
- if args.start:
- cfg['start'] = hms2s(args.start)
- if args.end:
- cfg['end'] = hms2s(args.end)
- if args.grid:
- cfg['grid'] = args.grid
- if args.width:
- cfg['thumb_width'] = args.width
- if args.force:
- cfg['force'] = True
- if args.reuse:
- cfg['reuse'] = True
- if args.scene:
- cfg['method'] = 'scene'
- cfg['scene_thresh'] = args.scene
- if args.nskip:
- cfg['method'] = 'skip'
- cfg['frame_skip'] = args.nskip
- if args.nsecs:
- cfg['method'] = 'time'
- cfg['time_skip'] = args.nsecs
- if args.iframe:
- cfg['method'] = 'iframe'
- if args.customvf:
- cfg['method'] = 'customvf'
- cfg['customvf'] = args.customvf
- if args.verbose:
- cfg['verbosity'] = args.verbose
- if args.batch:
- cfg['batch'] = args.batch
- if args.manage:
- cfg['manage'] = args.manage
-
- # parse grid geometry
- grid = re.split('[xX,;:]', cfg['grid'])
- cfg['grid_columns'] = int(grid[0])
- if len(grid) > 1:
- cfg['grid_rows'] = int(grid[1])
-
- # prepare output directory
- if not cfg['outdir']:
- cfg['outdir'] = tempfile.gettempdir()
- cfg['outdir'] = os.path.join(cfg['outdir'], 'ffpreview_thumbs')
- try:
- os.makedirs(cfg['outdir'], exist_ok=True)
- except Exception as e:
- eprint(0, str(e))
- die(1)
-
- return cfg
- # end of configure()
+ except Exception as e:
+ eprint(1, str(e), '(config file missing or corrupt)', vo=vo)
+ else:
+ eprint(1, 'read config from', cfg['conffile'], vo=vo)
+ # fix up types of non-string options
+ cfg['force'] = str2bool(cfg['force'])
+ cfg['reuse'] = str2bool(cfg['reuse'])
+ cfg['thumb_width'] = str2int(cfg['thumb_width'])
+ cfg['frame_skip'] = str2int(cfg['frame_skip'])
+ cfg['time_skip'] = str2float(cfg['time_skip'])
+ cfg['scene_thresh'] = str2float(cfg['scene_thresh'])
+ cfg['start'] = str2float(cfg['start'])
+ cfg['end'] = str2float(cfg['end'])
+ # evaluate remaining command line args
+ cfg['vid'] = args.filename
+ if args.outdir:
+ cfg['outdir'] = args.outdir
+ if args.start:
+ cfg['start'] = hms2s(args.start)
+ if args.end:
+ cfg['end'] = hms2s(args.end)
+ if args.grid:
+ grid = re.split('[xX,;:]', args.grid)
+ cfg['grid_columns'] = int(grid[0])
+ if len(grid) > 1:
+ cfg['grid_rows'] = int(grid[1])
+ if args.width:
+ cfg['thumb_width'] = args.width
+ if args.force:
+ cfg['force'] = True
+ if args.reuse:
+ cfg['reuse'] = True
+ if args.scene:
+ cfg['method'] = 'scene'
+ cfg['scene_thresh'] = args.scene
+ if args.nskip:
+ cfg['method'] = 'skip'
+ cfg['frame_skip'] = args.nskip
+ if args.nsecs:
+ cfg['method'] = 'time'
+ cfg['time_skip'] = args.nsecs
+ if args.iframe:
+ cfg['method'] = 'iframe'
+ if args.customvf:
+ cfg['method'] = 'customvf'
+ cfg['customvf'] = args.customvf
+ if args.verbose:
+ cfg['verbosity'] = args.verbose
+ if args.batch:
+ cfg['batch'] = args.batch
+ if args.manage:
+ cfg['manage'] = args.manage
+ # prepare output directory
+ if not cfg['outdir']:
+ cfg['outdir'] = tempfile.gettempdir()
+ cfg['outdir'] = os.path.join(cfg['outdir'], 'ffpreview_thumbs')
+ try:
+ os.makedirs(cfg['outdir'], exist_ok=True)
+ except Exception as e:
+ eprint(0, str(e))
+ die(1)
+ eprint(1, 'outdir =', cfg['outdir'])
+ # commit to successfully prepared config
+ cls.cfg = cfg
+ return cls
+
+ @classmethod
+ def get(cls):
+ return cls.cfg
+
+ @classmethod
+ def set(cls, newcfg=None):
+ if newcfg:
+ cls.cfg = deepcopy(newcfg)
+ return cls.cfg
+ return None
+
+ @classmethod
+ def update(cls, updcfg=None):
+ if updcfg:
+ cls.cfg.update(updcfg)
+ return cls.cfg
+ return None
+
+ @classmethod
+ def get_defaults(cls):
+ cfg = deepcopy(cls.cfg_dflt)
+ return cfg
############################################################
# initialization
global proc, cfg
proc = None
- cfg = configure()
+ cfg = ffConfig().get()
if cfg['verbosity'] > 2:
eprint(3, 'cfg = ' + json.dumps(cfg, indent=2))
projects / ffpreview.git / commitdiff