Python源码示例：cl.OpenDecompressor()
示例1
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例2
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._sampwidth = 2
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype in ('ULAW', 'ulaw'):
try:
import audioop
self._convert = self._ulaw2lin
self._sampwidth = 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype in ('ULAW', 'ulaw'):
scheme = cl.G711_ULAW
elif self._comptype in ('ALAW', 'alaw'):
scheme = cl.G711_ALAW
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
self._sampwidth = 2
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例3
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例4
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._sampwidth = 2
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype in ('ULAW', 'ulaw'):
try:
import audioop
self._convert = self._ulaw2lin
self._sampwidth = 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype in ('ULAW', 'ulaw'):
scheme = cl.G711_ULAW
elif self._comptype in ('ALAW', 'alaw'):
scheme = cl.G711_ALAW
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
self._sampwidth = 2
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例5
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._sampwidth = 2
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype in ('ULAW', 'ulaw'):
try:
import audioop
self._convert = self._ulaw2lin
self._sampwidth = 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype in ('ULAW', 'ulaw'):
scheme = cl.G711_ULAW
elif self._comptype in ('ALAW', 'alaw'):
scheme = cl.G711_ALAW
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
self._sampwidth = 2
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例6
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) / 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize / 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize / 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize / 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize / 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例7
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例8
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例9
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例10
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._sampwidth = 2
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype in ('ULAW', 'ulaw'):
try:
import audioop
self._convert = self._ulaw2lin
self._sampwidth = 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype in ('ULAW', 'ulaw'):
scheme = cl.G711_ULAW
elif self._comptype in ('ALAW', 'alaw'):
scheme = cl.G711_ALAW
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
self._sampwidth = 2
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例11
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._sampwidth = 2
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype in ('ULAW', 'ulaw'):
try:
import audioop
self._convert = self._ulaw2lin
self._sampwidth = 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype in ('ULAW', 'ulaw'):
scheme = cl.G711_ULAW
elif self._comptype in ('ALAW', 'alaw'):
scheme = cl.G711_ALAW
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
self._sampwidth = 2
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例12
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例13
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
示例14
def _read_comm_chunk(self, chunk):
self._nchannels = _read_short(chunk)
self._nframes = _read_long(chunk)
self._sampwidth = (_read_short(chunk) + 7) // 8
self._framerate = int(_read_float(chunk))
self._framesize = self._nchannels * self._sampwidth
if self._aifc:
#DEBUG: SGI's soundeditor produces a bad size :-(
kludge = 0
if chunk.chunksize == 18:
kludge = 1
print 'Warning: bad COMM chunk size'
chunk.chunksize = 23
#DEBUG end
self._comptype = chunk.read(4)
#DEBUG start
if kludge:
length = ord(chunk.file.read(1))
if length & 1 == 0:
length = length + 1
chunk.chunksize = chunk.chunksize + length
chunk.file.seek(-1, 1)
#DEBUG end
self._compname = _read_string(chunk)
if self._comptype != 'NONE':
if self._comptype == 'G722':
try:
import audioop
except ImportError:
pass
else:
self._convert = self._adpcm2lin
self._framesize = self._framesize // 4
return
# for ULAW and ALAW try Compression Library
try:
import cl
except ImportError:
if self._comptype == 'ULAW':
try:
import audioop
self._convert = self._ulaw2lin
self._framesize = self._framesize // 2
return
except ImportError:
pass
raise Error, 'cannot read compressed AIFF-C files'
if self._comptype == 'ULAW':
scheme = cl.G711_ULAW
self._framesize = self._framesize // 2
elif self._comptype == 'ALAW':
scheme = cl.G711_ALAW
self._framesize = self._framesize // 2
else:
raise Error, 'unsupported compression type'
self._decomp = cl.OpenDecompressor(scheme)
self._convert = self._decomp_data
else:
self._comptype = 'NONE'
self._compname = 'not compressed'
