def __init__(self, aiff_file,
sample_rate, channels, channel_mask, bits_per_sample,
chunk_length, process=None):
"""aiff_file should be rewound to the start of the SSND chunk."""
alignment = AiffAudio.SSND_ALIGN.parse_stream(aiff_file)
PCMReader.__init__(self,
file=__capped_stream_reader__(
aiff_file,
chunk_length - AiffAudio.SSND_ALIGN.sizeof()),
sample_rate=sample_rate,
channels=channels,
channel_mask=channel_mask,
bits_per_sample=bits_per_sample,
process=process,
signed=True,
big_endian=True)
self.ssnd_chunk_length = chunk_length - 8
standard_channel_mask = ChannelMask(self.channel_mask)
aiff_channel_mask = AIFFChannelMask(standard_channel_mask)
if (channels in (3, 4, 6)):
self.channel_order = [aiff_channel_mask.channels().index(channel)
for channel in
standard_channel_mask.channels()]
else:
self.channel_order = None
def __init__(self,
aiff_file,
sample_rate,
channels,
channel_mask,
bits_per_sample,
chunk_length,
process=None):
"""aiff_file should be rewound to the start of the SSND chunk."""
alignment = AiffAudio.SSND_ALIGN.parse_stream(aiff_file)
PCMReader.__init__(self,
file=__capped_stream_reader__(
aiff_file,
chunk_length - AiffAudio.SSND_ALIGN.sizeof()),
sample_rate=sample_rate,
channels=channels,
channel_mask=channel_mask,
bits_per_sample=bits_per_sample,
process=process,
signed=True,
big_endian=True)
self.ssnd_chunk_length = chunk_length - 8
standard_channel_mask = ChannelMask(self.channel_mask)
aiff_channel_mask = AIFFChannelMask(standard_channel_mask)
if (channels in (3, 4, 6)):
self.channel_order = [
aiff_channel_mask.channels().index(channel)
for channel in standard_channel_mask.channels()
]
else:
self.channel_order = None
def __init__(self, reader, tempdir, symlink):
PCMReader.__init__(self,
None,
sample_rate=reader.sample_rate,
channels=reader.channels,
channel_mask=reader.channel_mask,
bits_per_sample=reader.bits_per_sample)
self.tempdir = tempdir
self.symlink = symlink
self.reader = reader
self.closed = False
def __init__(self, au_file, data_size,
sample_rate, channels, channel_mask, bits_per_sample):
"""au_file is a file, data_size is an integer byte count.
sample_rate, channels, channel_mask and bits_per_sample are ints.
"""
PCMReader.__init__(self,
file=au_file,
sample_rate=sample_rate,
channels=channels,
channel_mask=channel_mask,
bits_per_sample=bits_per_sample)
self.data_size = data_size
def __init__(self, au_file, data_size, sample_rate, channels, channel_mask,
bits_per_sample):
"""au_file is a file, data_size is an integer byte count.
sample_rate, channels, channel_mask and bits_per_sample are ints.
"""
PCMReader.__init__(self,
file=au_file,
sample_rate=sample_rate,
channels=channels,
channel_mask=channel_mask,
bits_per_sample=bits_per_sample)
self.data_size = data_size