happycube#431 - remove MTF options and try to document it a little

ld-cut

@@ -16,9 +16,9 @@ import subprocess
 from lddecode.core import *
 from lddecode.utils import *
 
-parser = argparse.ArgumentParser(description='Extracts a sample area from raw RF laserdisc captures')
+parser = argparse.ArgumentParser(description='Extract a sample area from raw RF laserdisc captures.  (Similar to ld-decode, except it outputs samples)')
 parser.add_argument('infile', metavar='infile', type=str, help='source file')
-parser.add_argument('outfile', metavar='outfile', type=str, help='destination file')
+parser.add_argument('outfile', metavar='outfile', type=str, help='destination file (recommended to use .lds suffix)')
 
 parser.add_argument('-s', '--start', metavar='start', type=float, default=0, help='rough jump to frame n of capture (default is 0)')
 parser.add_argument('-l', '--length', metavar='length', type=int, default = -1, help='limit length to n frames')
@@ -29,10 +29,6 @@ parser.add_argument('-E', '--end', metavar='end', type=int, default=-1, help='cu
 parser.add_argument('-p', '--pal', dest='pal', action='store_true', help='source is in PAL format')
 parser.add_argument('-n', '--ntsc', dest='ntsc', action='store_true', help='source is in NTSC format')
 
-# included because some marginal CAV disks need -m 0 manually set
-parser.add_argument('-m', '--MTF', metavar='mtf', type=float, default=None, help='mtf compensation multiplier')
-parser.add_argument('--MTF_offset', metavar='mtf_offset', type=float, default=None, help='mtf compensation offset')
-
 args = parser.parse_args()
 
 #print(args)
@@ -61,12 +57,6 @@ original_sigint_handler = signal.signal(signal.SIGINT, signal.SIG_IGN)
 ldd = LDdecode(filename, None, loader, system=system, doDOD = False)
 signal.signal(signal.SIGINT, original_sigint_handler)
 
-if args.MTF is not None:
-    ldd.rf.mtf_mult = args.MTF
-
-if args.MTF_offset is not None:
-    ldd.rf.mtf_offset = args.MTF_offset
-
 if args.seek != -1:
     startloc = ldd.seek(args.start, args.seek) 
     if startloc is None: