def main():
usage = "%prog [options] <midi-input1> [<midi-input2> ...]"
description = "Interactive routine for cutting MIDI files. May take " "multiple MIDI files as input"
parser = OptionParser(usage=usage, description=description)
parser.add_option(
"-o",
"--output",
dest="output_dir",
action="store",
help="directory to send MIDI output to. If not given, they will be sent to a subdirectory 'cut' of that containing the first input",
)
parser.add_option(
"--fragment",
dest="fragment",
action="store",
type="float",
help="length in seconds of fragment to play when asked to play a beginning or ending. Default: 3secs",
default=3.0,
)
parser.add_option(
"--overwrite",
dest="overwrite",
action="store_true",
help="by default, we skip processing any files where there's a file with the same name in the output directory. This forces us to overwrite them",
)
parser.add_option(
"--ignore",
dest="ignore",
action="store",
help="file containing a list of filenames (not paths), one per line: any input files matching these names will be ignored and inputs marked as 'ignore' will be added to the list",
)
parser.add_option(
"--segfile",
dest="segfile",
action="store",
help="output a list of the MIDI files that get written by this script (just the base filename) in the format of segmidi input lists. The list will contain a basic set of default segmentation parameters. Use play_bulk_chunks to validate these. If the file exists, it will be appended",
)
options, arguments = parser.parse_args()
fragment = options.fragment
if len(arguments) == 0:
print >> sys.stderr, "You must specify at least one MIDI file"
sys.exit(1)
# Read in all the MIDI inputs
filenames = arguments
print "Processing %d inputs" % len(filenames)
if options.ignore:
if os.path.exists(options.ignore):
# Existing list
# Open the file to read in the current list and add to it
ignore_file = open(options.ignore, "r+a")
ignore_list = [filename.strip("\n") for filename in ignore_file.readlines()]
print "Loaded ignore list from %s" % options.ignore
else:
# No existing list
# Open the file so we can write new entries
ignore_file = open(options.ignore, "w")
ignore_list = []
print "Created new ignore list in %s" % options.ignore
else:
ignore_file = None
ignore_list = []
if options.segfile:
# Open the file for writing segmidi parameters to
segfile = open(options.segfile, "a")
segcsv = csv.writer(segfile)
else:
segfile = None
try:
# Set up the output directory
if options.output_dir:
output_dir = options.output_dir
else:
# Get the directory of the first input file
output_dir = os.path.join(os.path.dirname(filenames[0]), "cut")
check_directory(output_dir, is_dir=True)
print "Outputing MIDI files to %s" % output_dir
print
for filename in filenames:
basename = os.path.basename(filename)
# Ignore any files in the ignore list
if basename in ignore_list:
print "Skipping input %s, as it's in the ignore list" % basename
continue
out_filename = os.path.join(output_dir, os.path.basename(filename))
# Check whether the output file already exists
if os.path.exists(out_filename):
if options.overwrite:
# Just warn
print "WARNING: writing out this input will overwrite an existing file"
else:
# Don't continue with this input
print "Skipping input %s, since output file already exists" % filename
continue
start = 0
end = None
print "\n####################################"
print "Processing input: %s" % filename
# Read in the midi file
try:
mid = read_midifile(filename)
except Exception, err:
print "Error reading in midi file %s: %s" % (filename, err)
continue
print "Output will be written to: %s" % out_filename
# Start by playing the whole thing
_play(mid, start, end)
try:
while True:
# Print the header information
print "\n>>>>>>>>>>>>>>>>>>>>>>"
if end is None:
end_str = "open"
else:
end_str = "%d ticks" % end
print "Start: %d ticks. End: %s" % (start, end_str)
print ">>>>>>>>>>>>>>>>>>>>>>"
print "Set start time (s); set end time (e)"
print "Play all (p); play beginning ([); play end (], optional length)"
print "Write out and proceed (w); add to ignore list (i); skip to next (n); exit (x)"
# Get a command from the user
try:
command = raw_input(">> ")
except KeyboardInterrupt:
# I quite often send an interrupt by accident, meaning
# to stop the playback, but just after it's stopped
# itself
print "Ignored keyboard interrupt"
continue
command = command.strip()
if command.lower() == "p":
# Play within the selection again
_play(mid, start, end)
elif command.lower() == "n":
break
elif command.lower() == "i":
# Add the filename to the ignore list
if ignore_file:
ignore_file.write("%s\n" % os.path.basename(filename))
else:
print "No ignore file loaded: could not add this file to the list"
break
elif command.lower() == "x":
sys.exit(0)
elif command.lower().startswith("s"):
time = command[1:].strip()
if len(time) == 0:
print "Specify a start tick (T) or time (Ts)"
continue
start = _parse_time(mid, time)
elif command.lower().startswith("e"):
time = command[1:].strip()
if len(time) == 0:
print "Specify an end tick (T) or time (Ts)"
continue
end = _parse_time(mid, time, before=True)
elif command == "[":
# Play the opening few seconds
start_secs = _get_time(mid, start) / 1000.0
frag_end = _time_to_ticks(mid, fragment + start_secs)
_play(mid, start, frag_end)
elif command.startswith("]"):
length = command[1:].strip()
if len(length):
frag_length = float(length)
else:
frag_length = fragment
# Play the last few seconds
end_secs = _get_time(mid, end) / 1000.0
frag_start = _time_to_ticks(mid, max(0.0, end_secs - frag_length), before=True)
_play(mid, frag_start, end)
elif command == "w":
# Write the file out
if start is None:
start = 0
# Trim the midi
trimmed = EventStreamSlice(mid, start, end).to_event_stream(repeat_playing=False)
# Write it out
write_midifile(trimmed, out_filename)
if segfile is not None:
# Also output a row to the segmidi index
SegmentedMidiBulkInput.writeln(segcsv, basename)
print "Output written to %s" % out_filename
# Continue to the next input
break
else:
print "Unknown command: %s" % command
continue
except EOFError:
# User hit ctrl+D: continue to next input
print "Continuing to next input..."
continue
else:
def test_from_file(self):
options = SegmentedMidiBulkInput.process_option_dict({})
mids = SegmentedMidiBulkInput.from_file(SEGMENTED_MIDIS,
options=options)
def test_from_file(self):
options = SegmentedMidiBulkInput.process_option_dict({})
mids = SegmentedMidiBulkInput.from_file(SEGMENTED_MIDIS, options=options)
def main():
usage = "%prog [options] <midi-input1> [<midi-input2> ...]"
description = "Interactive routine for cutting MIDI files. May take "\
"multiple MIDI files as input"
parser = OptionParser(usage=usage, description=description)
parser.add_option(
"-o",
"--output",
dest="output_dir",
action="store",
help=
"directory to send MIDI output to. If not given, they will be sent to a subdirectory 'cut' of that containing the first input"
)
parser.add_option(
"--fragment",
dest="fragment",
action="store",
type="float",
help=
"length in seconds of fragment to play when asked to play a beginning or ending. Default: 3secs",
default=3.0)
parser.add_option(
"--overwrite",
dest="overwrite",
action="store_true",
help=
"by default, we skip processing any files where there's a file with the same name in the output directory. This forces us to overwrite them"
)
parser.add_option(
"--ignore",
dest="ignore",
action="store",
help=
"file containing a list of filenames (not paths), one per line: any input files matching these names will be ignored and inputs marked as 'ignore' will be added to the list"
)
parser.add_option(
"--segfile",
dest="segfile",
action="store",
help=
"output a list of the MIDI files that get written by this script (just the base filename) in the format of segmidi input lists. The list will contain a basic set of default segmentation parameters. Use play_bulk_chunks to validate these. If the file exists, it will be appended"
)
options, arguments = parser.parse_args()
fragment = options.fragment
if len(arguments) == 0:
print >> sys.stderr, "You must specify at least one MIDI file"
sys.exit(1)
# Read in all the MIDI inputs
filenames = arguments
print "Processing %d inputs" % len(filenames)
if options.ignore:
if os.path.exists(options.ignore):
# Existing list
# Open the file to read in the current list and add to it
ignore_file = open(options.ignore, 'r+a')
ignore_list = [
filename.strip("\n") for filename in ignore_file.readlines()
]
print "Loaded ignore list from %s" % options.ignore
else:
# No existing list
# Open the file so we can write new entries
ignore_file = open(options.ignore, 'w')
ignore_list = []
print "Created new ignore list in %s" % options.ignore
else:
ignore_file = None
ignore_list = []
if options.segfile:
# Open the file for writing segmidi parameters to
segfile = open(options.segfile, 'a')
segcsv = csv.writer(segfile)
else:
segfile = None
try:
# Set up the output directory
if options.output_dir:
output_dir = options.output_dir
else:
# Get the directory of the first input file
output_dir = os.path.join(os.path.dirname(filenames[0]), "cut")
check_directory(output_dir, is_dir=True)
print "Outputing MIDI files to %s" % output_dir
print
for filename in filenames:
basename = os.path.basename(filename)
# Ignore any files in the ignore list
if basename in ignore_list:
print "Skipping input %s, as it's in the ignore list" % basename
continue
out_filename = os.path.join(output_dir, os.path.basename(filename))
# Check whether the output file already exists
if os.path.exists(out_filename):
if options.overwrite:
# Just warn
print "WARNING: writing out this input will overwrite an existing file"
else:
# Don't continue with this input
print "Skipping input %s, since output file already exists" % filename
continue
start = 0
end = None
print "\n####################################"
print "Processing input: %s" % filename
# Read in the midi file
try:
mid = read_midifile(filename)
except Exception, err:
print "Error reading in midi file %s: %s" % (filename, err)
continue
print "Output will be written to: %s" % out_filename
# Start by playing the whole thing
_play(mid, start, end)
try:
while True:
# Print the header information
print "\n>>>>>>>>>>>>>>>>>>>>>>"
if end is None:
end_str = "open"
else:
end_str = "%d ticks" % end
print "Start: %d ticks. End: %s" % (start, end_str)
print ">>>>>>>>>>>>>>>>>>>>>>"
print "Set start time (s); set end time (e)"
print "Play all (p); play beginning ([); play end (], optional length)"
print "Write out and proceed (w); add to ignore list (i); skip to next (n); exit (x)"
# Get a command from the user
try:
command = raw_input(">> ")
except KeyboardInterrupt:
# I quite often send an interrupt by accident, meaning
# to stop the playback, but just after it's stopped
# itself
print "Ignored keyboard interrupt"
continue
command = command.strip()
if command.lower() == "p":
# Play within the selection again
_play(mid, start, end)
elif command.lower() == "n":
break
elif command.lower() == "i":
# Add the filename to the ignore list
if ignore_file:
ignore_file.write("%s\n" %
os.path.basename(filename))
else:
print "No ignore file loaded: could not add this file to the list"
break
elif command.lower() == "x":
sys.exit(0)
elif command.lower().startswith("s"):
time = command[1:].strip()
if len(time) == 0:
print "Specify a start tick (T) or time (Ts)"
continue
start = _parse_time(mid, time)
elif command.lower().startswith("e"):
time = command[1:].strip()
if len(time) == 0:
print "Specify an end tick (T) or time (Ts)"
continue
end = _parse_time(mid, time, before=True)
elif command == "[":
# Play the opening few seconds
start_secs = _get_time(mid, start) / 1000.0
frag_end = _time_to_ticks(mid, fragment + start_secs)
_play(mid, start, frag_end)
elif command.startswith("]"):
length = command[1:].strip()
if len(length):
frag_length = float(length)
else:
frag_length = fragment
# Play the last few seconds
end_secs = _get_time(mid, end) / 1000.0
frag_start = _time_to_ticks(
mid, max(0.0, end_secs - frag_length), before=True)
_play(mid, frag_start, end)
elif command == "w":
# Write the file out
if start is None:
start = 0
# Trim the midi
trimmed = EventStreamSlice(
mid, start,
end).to_event_stream(repeat_playing=False)
# Write it out
write_midifile(trimmed, out_filename)
if segfile is not None:
# Also output a row to the segmidi index
SegmentedMidiBulkInput.writeln(segcsv, basename)
print "Output written to %s" % out_filename
# Continue to the next input
break
else:
print "Unknown command: %s" % command
continue
except EOFError:
# User hit ctrl+D: continue to next input
print "Continuing to next input..."
continue
else:
