def main():
parser = argparse.ArgumentParser(
description='Remove all noise, idealize the data')
parser.add_argument('file',
nargs='?',
default='/dev/stdin',
help='TZX file, stdin if omitted')
parser.add_argument('-o',
'--to',
dest='to',
metavar='TARGET',
default='/dev/stdout',
help='target TZX file, stdout if omitted')
parser.add_argument('-c',
'--stripcrc',
dest='stripcrc',
action='store_true',
help='also remove blocks with bad CRC')
args = parser.parse_args()
fout = TzxFile()
crcCnt = 0
noiseCnt = 0
file = TzxFile()
file.read(args.file)
for b in file.blocks:
# Convert Turbo blocks to standard timed blocks if possible
if b.id in [0x11, 0x14]:
o = b.asData()
# Use all data blocks for the output
if b.id in [0x10, 0x11, 0x14]:
if not b.valid():
crcCnt += 1
if b.valid() or not args.stripcrc:
fout.blocks.append(b)
continue
# Use all pause blocks if they mean "stop the tape"
if b.id in [0x20, 0x2A]:
if b.id != 0x20 or b.length() == 0:
fout.blocks.append(b)
continue
# Use all meta blocks
if b.id not in [0x12, 0x13, 0x15, 0x18, 0x19]:
fout.blocks.append(b)
continue
noiseCnt += 1
fout.write(args.to)
print('Blocks found: %3d' % (len(file.blocks)), file=sys.stderr)
print('Noise blocks removed: %3d' % (noiseCnt), file=sys.stderr)
print('Blocks with CRC errors: %3d' % (crcCnt), file=sys.stderr)
print('Blocks written: %3d' % (len(fout.blocks)), file=sys.stderr)
def main():
parser = argparse.ArgumentParser(description='Merges TZX files')
parser.add_argument('files', nargs='+', help='TZX files to merge')
parser.add_argument('-o',
'--to',
metavar='TARGET',
default='/dev/stdout',
help='target TZX file, stdout if omitted')
args = parser.parse_args()
file = TzxFile()
for f in args.files:
mergeFile = TzxFile()
mergeFile.read(f)
file.blocks.extend(mergeFile.blocks)
file.write(args.to)
def main():
parser = argparse.ArgumentParser(
description='Split into separate programs')
parser.add_argument('blocks',
nargs='*',
help='block numbers and ranges to keep')
parser.add_argument('-i',
'--from',
dest='file',
metavar='SOURCE',
default='/dev/stdin',
help='source TZX file, stdin if omitted')
parser.add_argument('-o',
'--to',
dest='to',
metavar='TARGET',
default='/dev/stdout',
help='target TZX file, stdout if omitted')
parser.add_argument('-v',
'--invert',
dest='invert',
action='store_true',
help='do not keep, but remove the blocks')
args = parser.parse_args()
file = TzxFile()
file.read(args.file)
lastBlock = len(file.blocks)
ranges = []
for rng in args.blocks:
m = re.match(r'^(-?\d+)$', rng)
if m:
v1 = int(m.group(1))
appendRange(ranges, v1, v1, lastBlock)
continue
m = re.match(r'^(-?\d+):(-?\d+)$', rng)
if m:
v1 = int(m.group(1))
v2 = int(m.group(2))
appendRange(ranges, v1, v2, lastBlock)
continue
m = re.match(r'^(-?\d+):$', rng)
if m:
v1 = int(m.group(1))
appendRange(ranges, v1, lastBlock, lastBlock)
continue
m = re.match(r'^:(-?\d+)$', rng)
if m:
v2 = int(m.group(1))
appendRange(ranges, 0, v2, lastBlock)
continue
print('Illegal range: %s' % (rng), file=sys.stderr)
exit(1)
fout = TzxFile()
count = 0
for b in file.blocks:
if isInRange(ranges, count) != args.invert:
fout.blocks.append(b)
count += 1
fout.write(args.to)
def main():
parser = argparse.ArgumentParser(
description='Remove all noise, idealize the data')
parser.add_argument(
'file',
nargs='?',
type=argparse.FileType('rb'),
default=(None if sys.stdin.isatty() else sys.stdin.buffer),
help='TZX file, stdin if omitted')
parser.add_argument('-o',
'--to',
dest='to',
metavar='TARGET',
type=argparse.FileType('wb'),
default=sys.stdout.buffer,
help='target TZX file, stdout if omitted')
parser.add_argument('-c',
'--stripcrc',
dest='stripcrc',
action='store_true',
help='also remove blocks with bad CRC')
parser.add_argument(
'-H',
'--headermustmatch',
dest='headermustmatch',
action='store_true',
help=
'Remove blocks not proceeded by matching header (keep only matching header-block pairs)'
)
args = parser.parse_args()
if args.file is None:
parser.print_help(sys.stderr)
sys.exit(1)
fout = TzxFile()
crcCnt = 0
noiseCnt = 0
headerlessCnt = 0
file = TzxFile()
file.read(args.file)
numbytes = 0
blocklengthfromheader = 0
for b in file.blocks:
# Convert Turbo blocks to standard timed blocks if possible
if b.id == 0x11: # turbo data
b = b.asData()
# when args.headermustmatch keep last header found
if args.headermustmatch and b.id == 0x10 and b.valid() and isinstance(
b.tap, TapHeader):
if blocklengthfromheader != 0:
# header after header makes the first one a orphan header
print("Orphan header: {} ({})".format(
lastheader.tap.name().strip(), blocklengthfromheader),
file=sys.stderr)
headerlessCnt = headerlessCnt + 1
lastheader = b
blocklengthfromheader = lastheader.tap.length()
continue
# Use all data blocks for the output
if b.id in [0x10, 0x11, 0x14]:
if not b.valid():
crcCnt += 1
if b.valid() or not args.stripcrc:
if args.headermustmatch:
if blocklengthfromheader == len(
b.tap.data) - 2 and not isinstance(
b.tap, TapHeader):
# this is a datablock with matching header
fout.blocks.append(lastheader) # write header only now
fout.blocks.append(b)
numbytes += len(b.tap.data)
blocklengthfromheader = 0
else:
# as before.
fout.blocks.append(b)
numbytes += len(b.tap.data)
if blocklengthfromheader != 0:
print("Orphan header: {} ({})".format(
lastheader.tap.name().strip(), blocklengthfromheader),
file=sys.stderr)
headerlessCnt = headerlessCnt + 1
blocklengthfromheader = 0
continue
blocklengthfromheader = 0
# Use all pause blocks if they mean "stop the tape"
if b.id in [0x20, 0x2A]:
if b.id != 0x20 or b.length() == 0:
fout.blocks.append(b)
numbytes += len(b.tap.data)
continue
# Use all meta blocks
if b.id not in [0x12, 0x13, 0x15, 0x18, 0x19]:
fout.blocks.append(b)
numbytes += len(b.tap.data)
continue
noiseCnt += 1
fout.write(args.to)
print('Blocks found: %3d' % (len(file.blocks)),
file=sys.stderr)
print('Noise blocks removed: %3d' % (noiseCnt), file=sys.stderr)
print('Blocks with CRC errors: %3d' % (crcCnt), file=sys.stderr)
if args.headermustmatch:
print('Skipped headerless blocks: %3d' % (headerlessCnt),
file=sys.stderr)
print('Blocks written: %3d' % (len(fout.blocks)),
file=sys.stderr)
print('Total bytes written: %3d' % (numbytes),
file=sys.stderr) # DJS