def wave_note_write (infile=None, note='', wav=None, outfile=None, safe=True):
'''
Writes the note section of the specified wave.
To this purpose, wave is read from 'wfile' if not an existing
wave is already specified by the 'wav' parameter.
The wave is written back to 'wfile', if not a different output
file is specified by the 'outfile' parameter.
'''
if outfile is not None:
outfile_name = outfile.name if hasattr(outfile, 'name') else outfile
if infile is not None:
infile_name = infile.name if hasattr (infile, 'name') else infile
if wav is None:
wav = ig.wave_read (infile_name, note_parse=False)
if safe:
# write the wave (using an intermediary temporary file)
with NamedTemporaryFile (delete=False) as tmp:
tmp.close()
ig.wave_write (wav, tmp.name, note=note)
os.rename (tmp.name, outfile_name)
else:
ig.wave_write (wav, outfile_name)
def wave_note_read (wfile):
'''
Returns the note section of the specified wave.
'''
text = bytearray()
wav = ig.wave_read (wfile, note_text=text, note_parse=False)
return str(text)
def wave_dim_main (param):
'''
wave_dim entry routine (intrinsic dimension scaling manipulation)
'''
if param.output is None:
param.output = param.input
for fin, fout in zip(param.input, param.output):
wav = ig.wave_read(fin)
wav_save = False
# prepare list of dimensions to be processed (defaults to: all)
if param.dim is None:
param.dim = range(wav.ndim)
# set attribute / increase attribute
if param.set is not None:
wav_save = True
[ setattr (wav.dim[i], param.set[0], eval(param.set[1]))
for i in param.dim ]
# increase attribute -- special case of "set"
elif param.inc is not None:
wav_save = True
[ setattr (wav.dim[i], param.inc[0],
getattr(wav.dim[i], param.inc[0]) + eval(param.inc[1]))
for i in param.dim ]
# read attribute
elif param.read is not None:
[ pprint (getattr(wav.dim[i], param.read))
for i in param.dim ]
# print note (param.nprint)
else:
print string.join([ str(d) for d in wav.dim ], '\n')
# re-write the wave, if modifications were performed
if wav_save:
wav_name = fout.name if hasattr(fout, "close") else fout
if param.safe:
with NamedTemporaryFile (delete=False) as tmp:
tmp.close()
ig.wave_write (wav, tmp.name)
os.rename (tmp.name, wav_name)
else:
ig.wave_write (wav, wav_name)
def wave_dump_main(param):
'''
wave_dim entry routine (intrinsic dimension scaling manipulation)
'''
for f in param.input:
wav = ig.wave_read(f)
if wav.ndim == 1:
for x,val in zip(wav, wav.dim[0].range):
print x, "\t", val
elif wav.ndim == 2:
for block, x in zip(wav, wav.dim[0].range):
for val, y in zip(block, block.dim[0].range):
print x, "\t", y, "\t", val
print
else:
print "%s: dimension %d > 2, don't know what to do." % wav.ndim
sys.exit(-1)
