def main():
global pid
global VERBOSE
global SILENT
global infilename
global outfilename
global tmax
global time_offset
parser = argparse.ArgumentParser(
description='Remove ARIB formatted Closed Caption information from an MPEG TS file and format the results as a standard .ass subtitle file.')
parser.add_argument('infile', help='Input filename (MPEG2 Transport Stream File)', type=str)
parser.add_argument('-o', '--outfile', help='Output filename (.ass subtitle file)', type=str, default=None)
parser.add_argument('-p', '--pid',
help='Specify a PID of a PES known to contain closed caption info (tool will attempt to find the proper PID if not specified.).',
type=int, default=-1)
parser.add_argument('-v', '--verbose', help='Verbose output.', action='store_true')
parser.add_argument('-q', '--quiet', help='Does not write to stdout.', action='store_true')
parser.add_argument('-t', '--tmax', help='Subtitle display time limit (seconds).', type=int, default=5)
parser.add_argument('-m', '--timeoffset',
help='Shift all time values in generated .ass file by indicated floating point offset in seconds.',
type=float, default=0.0)
args = parser.parse_args()
pid = args.pid
infilename = args.infile
outfilename = infilename + ".ass"
if args.outfile is not None:
outfilename = args.outfile
SILENT = args.quiet
VERBOSE = args.verbose
tmax = args.tmax
time_offset = args.timeoffset
if not os.path.exists(infilename) and not SILENT:
print 'Input filename :' + infilename + " does not exist."
sys.exit(-1)
ts = TS(infilename)
ts.Progress = OnProgress
ts.OnTSPacket = OnTSPacket
ts.OnESPacket = OnESPacket
try:
ts.Parse()
except Exception as ex:
if not SILENT:
print("*** Sorry, " + str(ex))
sys.exit(-1)
if pid < 0 and not SILENT:
print("*** Sorry. No ARIB subtitle content was found in file: " + infilename + " ***")
sys.exit(-1)
if ass and not ass.file_written() and not SILENT:
print("*** Sorry. No nonempty ARIB closed caption content found in file " + infilename + " ***")
sys.exit(-1)
sys.exit(0)
