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implement new buffer input / output api

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This commit is contained in:
Jakob Ketterl
2020-12-25 20:27:30 +01:00
parent 2df527ed20
commit fa3b5cd7e6
5 changed files with 71 additions and 25 deletions
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31
csdr/chain/__init__.py
View File

@@ -1,19 +1,34 @@
from pycsdr import Buffer
import logging
logger = logging.getLogger(__name__)
class Chain(object):
def __init__(self, *workers):
self.input = None
self.output = None
self.workers = workers
stage = None
for w in self.workers:
if stage is not None:
w.setInput(stage.getBuffer())
stage = w
self.buffer = stage.getBuffer()
for i in range(1, len(self.workers)):
self._connect(self.workers[i - 1], self.workers[i])
def _connect(self, w1, w2):
buffer = Buffer()
w1.setOutput(buffer)
w2.setInput(buffer)
def stop(self):
for w in self.workers:
w.stop()
def setInput(self, buffer):
if self.input == buffer:
return
self.input = buffer
self.workers[0].setInput(buffer)
def getBuffer(self):
return self.buffer
def setOutput(self, buffer):
if self.output == buffer:
return
self.output = buffer
self.workers[-1].setOutput(buffer)

34
csdr/chain/fft.py
View File

@@ -1,25 +1,45 @@
from csdr.chain import Chain
from pycsdr import Fft, LogAveragePower, FftExchangeSides, CompressFftAdpcm
from pycsdr import Fft, LogPower, LogAveragePower, FftExchangeSides, CompressFftAdpcm
import logging
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)
class FftAverager(Chain):
def __init__(self, fft_size, fft_averages):
self.fftSize = fft_size
self.fftAverages = fft_averages
self.worker = LogAveragePower(add_db=-70, fft_size=self.fftSize, avg_number=self.fftAverages)
self.fftAverages = None
self.worker = None
self.input = None
self.output = None
self.setFftAverages(fft_averages)
workers = [self.worker]
super().__init__(*workers)
def setFftAverages(self, fft_averages):
if self.fftAverages == fft_averages:
return
if fft_averages == 0 and self.fftAverages != 0:
if self.worker is not None:
self.worker.stop()
self.worker = LogPower(add_db=70)
if self.output is not None:
self.worker.setOutput(self.output)
if self.input is not None:
self.worker.setInput(self.input)
elif fft_averages != 0:
if self.fftAverages == 0 or self.worker is None:
if self.worker is not None:
self.worker.stop()
self.worker = LogAveragePower(add_db=-70, fft_size=self.fftSize, avg_number=fft_averages)
if self.output is not None:
self.worker.setOutput(self.output)
if self.input is not None:
self.worker.setInput(self.input)
else:
self.worker.setFftAverages(avg_number=fft_averages)
self.workers = [self.worker]
self.fftAverages = fft_averages
# TODO replace worker with LogPower if fft_averages == 0
self.worker.setFftAverages(avg_number=self.fftAverages)
class FftChain(Chain):
@@ -32,7 +52,7 @@ class FftChain(Chain):
self.blockSize = 0
self.fft = Fft(size=self.size, every_n_samples=self.blockSize)
self.averager = FftAverager(fft_size=self.size, fft_averages=0)
self.averager = FftAverager(fft_size=self.size, fft_averages=10)
self.fftExchangeSides = FftExchangeSides(fft_size=self.size)
workers = [
self.fft,

18
csdr/csdr.py
View File

@@ -36,6 +36,8 @@ from owrx.audio import AudioChopper
from csdr.pipe import Pipe
from csdr.chain.fft import FftChain
from pycsdr import Buffer
import logging
logger = logging.getLogger(__name__)
@@ -77,7 +79,7 @@ class dsp(object):
def __init__(self, output):
self.pycsdr_enabled = True
self.pycsdr_chain = None
self.socketClient = None
self.buffer = None
self.samp_rate = 250000
self.output_rate = 11025
@@ -139,10 +141,10 @@ class dsp(object):
self.direwolf_port = None
self.process = None
def setSocketClient(self, socketClient):
self.socketClient = socketClient
def setBuffer(self, buffer):
self.buffer = buffer
if self.pycsdr_chain is not None:
self.pycsdr_chain.setInput(socketClient.getBuffer())
self.pycsdr_chain.setInput(buffer)
def set_service(self, flag=True):
self.is_service = flag
@@ -790,10 +792,12 @@ class dsp(object):
fft_compression=self.fft_compression
)
if self.socketClient is not None:
self.pycsdr_chain.setInput(self.socketClient.getBuffer())
if self.buffer is not None:
self.pycsdr_chain.setInput(self.buffer)
self.output.send_output("audio", self.pycsdr_chain.getBuffer().read)
buffer = Buffer()
self.pycsdr_chain.setOutput(buffer)
self.output.send_output("audio", buffer.read)
return
with self.modification_lock:

2
owrx/fft.py
View File

@@ -31,7 +31,7 @@ class SpectrumThread(csdr.output, SdrSourceEventClient):
self.dsp = dsp = csdr.dsp(self)
dsp.nc_port = self.sdrSource.getPort()
dsp.setSocketClient(self.sdrSource.getSocketClient())
dsp.setBuffer(self.sdrSource.getBuffer())
dsp.set_demodulator("fft")
self.subscriptions = [

11
owrx/source/__init__.py
View File

@@ -11,7 +11,7 @@ from owrx.command import CommandMapper
from owrx.socket import getAvailablePort
from owrx.property import PropertyStack, PropertyLayer
from pycsdr import SocketClient
from pycsdr import SocketClient, Buffer
import logging
@@ -51,6 +51,7 @@ class SdrSource(ABC):
self.commandMapper = None
self.socketClient = None
self.buffer = None
self.props = PropertyStack()
# layer 0 reserved for profile properties
@@ -144,12 +145,18 @@ class SdrSource(ABC):
def getPort(self):
return self.port
def getSocketClient(self):
def _getSocketCLient(self):
with self.modificationLock:
if self.socketClient is None:
self.socketClient = SocketClient(self.port)
return self.socketClient
def getBuffer(self):
if self.buffer is None:
self.buffer = Buffer()
self._getSocketCLient().setOutput(self.buffer)
return self.buffer
def getCommandValues(self):
dict = self.sdrProps.__dict__()
if "lfo_offset" in dict and dict["lfo_offset"] is not None: