def is_format_supported(self,
rate,
input_device=None,
input_channels=None,
input_format=None,
output_device=None,
output_channels=None,
output_format=None):
"""
Check to see if specified device configuration
is supported. Returns True if the configuration
is supported; throws a ValueError exception otherwise.
:param `rate`:
Specifies the desired rate (in Hz)
:param `input_device`:
The input device index. Specify `None` (default) for
half-duplex output-only streams.
:param `input_channels`:
The desired number of input channels. Ignored if
`input_device` is not specified (or `None`).
:param `input_format`:
PortAudio sample format constant defined
in this module
:param `output_device`:
The output device index. Specify `None` (default) for
half-duplex input-only streams.
:param `output_channels`:
The desired number of output channels. Ignored if
`input_device` is not specified (or `None`).
:param `output_format`:
PortAudio sample format constant (`PaSampleFormat`).
:rtype: bool
:raises ValueError: tuple containing:
(error string, PortAudio error code `PaErrorCode`).
"""
if input_device == None and output_device == None:
raise ValueError("must specify stream format for input, " +\
"output, or both", paInvalidDevice)
kwargs = {}
if input_device != None:
kwargs['input_device'] = input_device
kwargs['input_channels'] = input_channels
kwargs['input_format'] = input_format
if output_device != None:
kwargs['output_device'] = output_device
kwargs['output_channels'] = output_channels
kwargs['output_format'] = output_format
return pa.is_format_supported(rate, **kwargs)
def is_format_supported(self, rate,
input_device = None,
input_channels = None,
input_format = None,
output_device = None,
output_channels = None,
output_format = None):
"""
Check to see if specified device configuration
is supported. Returns True if the configuration
is supported; throws a ValueError exception otherwise.
:param `rate`:
Specifies the desired rate (in Hz)
:param `input_device`:
The input device index. Specify `None` (default) for
half-duplex output-only streams.
:param `input_channels`:
The desired number of input channels. Ignored if
`input_device` is not specified (or `None`).
:param `input_format`:
PortAudio sample format constant defined
in this module
:param `output_device`:
The output device index. Specify `None` (default) for
half-duplex input-only streams.
:param `output_channels`:
The desired number of output channels. Ignored if
`input_device` is not specified (or `None`).
:param `output_format`:
PortAudio sample format constant (`PaSampleFormat`).
:rtype: bool
:raises ValueError: tuple containing:
(error string, PortAudio error code `PaErrorCode`).
"""
if input_device == None and output_device == None:
raise ValueError("must specify stream format for input, " +\
"output, or both", paInvalidDevice);
kwargs = {}
if input_device != None:
kwargs['input_device'] = input_device
kwargs['input_channels'] = input_channels
kwargs['input_format'] = input_format
if output_device != None:
kwargs['output_device'] = output_device
kwargs['output_channels'] = output_channels
kwargs['output_format'] = output_format
return pa.is_format_supported(rate, **kwargs)
