def _parse_supported_sampling_rates(self):
sampling_rates = {}
playback = []
capture = []
# Assume that PCM playback is available for all of models.
for rate in AvcConnection.sampling_rates:
if AvcConnection.ask_plug_signal_format(self.fcp, 'input', 0, rate):
playback.append(rate)
# PCM capture is not always available depending on models.
for rate in AvcConnection.sampling_rates:
if AvcConnection.ask_plug_signal_format(self.fcp, 'output', 0,rate):
capture.append(rate)
self._playback_only = (len(capture) == 0)
for rate in AvcConnection.sampling_rates:
if rate in playback or rate in capture:
sampling_rates[rate] = True
return sampling_rates
def set_stream_formats(self, playback, capture):
if playback not in self.supported_stream_formats['playback']:
raise ValueError('Invalid argument for playback stream format')
if capture:
if self._playback_only:
raise ValueError('This unit is playback only')
if capture not in self.supported_stream_formats['capture']:
raise ValueError('Invalid argument for capture stream format')
if playback['sampling-rate'] != capture['sampling-rate']:
raise ValueError('Sampling rate mis-match between playback and capture')
if self._assumed:
rate = playback['sampling-rate']
AvcConnection.set_plug_signal_format(self.fcp, 'output', 0, rate)
AvcConnection.set_plug_signal_format(self.fcp, 'input', 0, rate)
else:
AvcStreamFormatInfo.set_format(self.fcp, 'input', 0, playback)
if not self._playback_only:
AvcStreamFormatInfo.set_format(self.fcp, 'output', 0, capture)
def _parse_unit_plugs(self, fcp):
unit_plugs = {}
info = AvcConnection.get_unit_plug_info(fcp)
for type, params in info.items():
if type not in unit_plugs:
unit_plugs[type] = {}
for dir, num in params.items():
if dir not in unit_plugs[type]:
unit_plugs[type][dir] = []
for i in range(num):
plug = self._parse_unit_plug(fcp, dir, type, i)
unit_plugs[type][dir].append(plug)
return unit_plugs
def _parse_unit_plugs(self, fcp):
unit_plugs = {}
info = AvcConnection.get_unit_plug_info(fcp)
for type, params in info.items():
if type not in unit_plugs:
unit_plugs[type] = {}
for dir, num in params.items():
if dir not in unit_plugs[type]:
unit_plugs[type][dir] = []
for i in range(num):
plug = self._parse_unit_plug(fcp, dir, type, i)
unit_plugs[type][dir].append(plug)
return unit_plugs
def _parse_unit_plugs(self):
unit_plugs = {}
info = AvcConnection.get_unit_plug_info(self.fcp)
for type, params in info.items():
if type not in unit_plugs:
unit_plugs[type] = {}
unit_plugs[type]['output'] = {}
unit_plugs[type]['input'] = {}
for dir, num in params.items():
for i in range(num + 1):
try:
plug = self._parse_unit_plug(dir, type, i)
unit_plugs[type][dir][i] = plug
except:
continue
return unit_plugs
def _parse_subunit_plugs(self):
subunit_plugs = {}
subunits = BcoSubunitInfo.get_subunits(self.fcp)
for subunit in subunits:
type = subunit['type']
id = subunit['id']
if subunit['id'] != 0:
raise RuntimeError('Unsupported number for subunit id')
if type not in subunit_plugs:
subunit_plugs[type] = {}
subunit_plugs[type]['output'] = {}
subunit_plugs[type]['input'] = {}
info = AvcConnection.get_subunit_plug_info(self.fcp, type, 0)
for dir, num in info.items():
for i in range(num):
plug = self._parse_subunit_plug(dir, type, 0, i)
subunit_plugs[type][dir][i] = plug
return subunit_plugs
def _parse_subunit_plugs(self, fcp):
subunit_plugs = {}
subunits = BcoSubunitInfo.get_subunits(fcp)
for subunit in subunits:
type = subunit['type']
id = subunit['id']
if subunit['id'] != 0:
raise RuntimeError('Unsupported number for subunit id')
if type not in subunit_plugs:
subunit_plugs[type] = {}
subunit_plugs[type]['input'] = []
subunit_plugs[type]['output'] = []
info = AvcConnection.get_subunit_plug_info(fcp, type, 0)
for dir, num in info.items():
for i in range(num):
plug = self._parse_subunit_plug(fcp, dir, type, 0, i)
subunit_plugs[type][dir].append(plug)
return subunit_plugs
def get_sampling_rate(self):
return AvcConnection.get_plug_signal_format(self.fcp, "output", 0)
def set_sampling_rate(self, rate):
AvcConnection.set_plug_signal_format(self.fcp, "input", 0, rate)
AvcConnection.set_plug_signal_format(self.fcp, "output", 0, rate)