def set_tonecontrol_filters(self,
lowshelf=None,
highshelf=None,
mode=MODE_BOTH):
(addr_left, length_left) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_TONECONTROL_FILTER_LEFT))
(addr_right, length_right) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_TONECONTROL_FILTER_RIGHT))
if mode == MODE_LEFT:
maxlen = length_left
elif mode == MODE_RIGHT:
maxlen = length_right
else:
maxlen = min(length_left, length_right)
assert maxlen % 5 == 0
maxlen = maxlen / 5
if maxlen < 2:
raise (
DSPError("DSPprofile doesn't have tone controls or too short"))
if lowshelf is not None:
if mode == MODE_LEFT or mode == MODE_BOTH:
self.sigmatcp.write_biquad(addr_left, lowshelf)
if mode == MODE_RIGHT or mode == MODE_BOTH:
self.sigmatcp.write_biquad(addr_right, lowshelf)
if highshelf is not None:
if mode == MODE_LEFT or mode == MODE_BOTH:
self.sigmatcp.write_biquad(addr_left + 5, highshelf)
if mode == MODE_RIGHT or mode == MODE_BOTH:
self.sigmatcp.write_biquad(addr_right + 5, highshelf)
def write_fir(self, coefficients, mode=MODE_BOTH):
(firleft, len_left) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_FIR_FILTER_LEFT))
(firright, len_right) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_FIR_FILTER_RIGHT))
if mode == MODE_BOTH or mode == MODE_LEFT:
result = self.write_coefficients(firleft, len_left, coefficients)
if mode == MODE_BOTH or mode == MODE_RIGHT:
result = self.write_coefficients(firright, len_right, coefficients)
return result
def set_filters(self, filters, mode=MODE_BOTH, cutoff_long=False):
(addr_left, length_left) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_IIR_FILTER_LEFT))
# Beocreate profiles use different naming
if length_left <= 0:
(addr_left, length_left) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_CUSTOM_FILTER_LEFT))
(addr_right, length_right) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_IIR_FILTER_RIGHT))
# Beocreate profiles use different naming
if length_right <= 0:
(addr_right, length_right) = datatools.parse_int_length(
self.sigmatcp.request_metadata(ATTRIBUTE_CUSTOM_FILTER_RIGHT))
if mode == MODE_LEFT:
maxlen = length_left
elif mode == MODE_RIGHT:
maxlen = length_right
else:
maxlen = min(length_left, length_right)
assert maxlen % 5 == 0
maxlen = maxlen / 5
if len(filters) > maxlen and (cutoff_long == False):
raise (DSPError(
"{} filters given, but filter bank has only {:.0f} slots".
format(len(filters), maxlen)))
self.hibernate(True)
logging.debug("deploying filters %s", filters)
i = 0
for f in filters:
logging.debug(f)
if mode == MODE_LEFT or mode == MODE_BOTH:
if i < length_left:
self.sigmatcp.write_biquad(addr_left + i * 5, f)
if mode == MODE_RIGHT or mode == MODE_BOTH:
if i < length_right:
self.sigmatcp.write_biquad(addr_right + i * 5, f)
i += 1
if i >= maxlen:
break
self.hibernate(False)
def get_addr_length(self, attribute):
addr = self.get_meta(attribute)
return parse_int_length(addr)
