import subprocess from owrx.config import PropertyManager import threading import csdr import time class RtlNmuxSource(threading.Thread): def run(self): pm = PropertyManager.getSharedInstance() nmux_bufcnt = nmux_bufsize = 0 while nmux_bufsize < pm.getPropertyValue("samp_rate")/4: nmux_bufsize += 4096 while nmux_bufsize * nmux_bufcnt < pm.getPropertyValue("nmux_memory") * 1e6: nmux_bufcnt += 1 if nmux_bufcnt == 0 or nmux_bufsize == 0: print("[RtlNmuxSource] Error: nmux_bufsize or nmux_bufcnt is zero. These depend on nmux_memory and samp_rate options in config_webrx.py") return print("[RtlNmuxSource] nmux_bufsize = %d, nmux_bufcnt = %d" % (nmux_bufsize, nmux_bufcnt)) cmd = pm.getPropertyValue("start_rtl_command") + "| nmux --bufsize %d --bufcnt %d --port %d --address 127.0.0.1" % (nmux_bufsize, nmux_bufcnt, pm.getPropertyValue("iq_server_port")) self.process = subprocess.Popen(cmd, shell=True) print("[RtlNmuxSource] Started rtl source: " + cmd) self.process.wait() print("[RtlNmuxSource] shut down") class SpectrumThread(threading.Thread): sharedInstance = None @staticmethod def getSharedInstance(): if SpectrumThread.sharedInstance is None: SpectrumThread.sharedInstance = SpectrumThread() SpectrumThread.sharedInstance.start() return SpectrumThread.sharedInstance def __init__(self): self.clients = [] self.doRun = True super().__init__() def run(self): pm = PropertyManager.getSharedInstance() samp_rate = pm.getPropertyValue("samp_rate") fft_size = pm.getPropertyValue("fft_size") fft_fps = pm.getPropertyValue("fft_fps") fft_voverlap_factor = pm.getPropertyValue("fft_voverlap_factor") fft_compression = pm.getPropertyValue("fft_compression") format_conversion = pm.getPropertyValue("format_conversion") spectrum_dsp=dsp=csdr.dsp() dsp.nc_port = pm.getPropertyValue("iq_server_port") dsp.set_demodulator("fft") dsp.set_samp_rate(samp_rate) dsp.set_fft_size(fft_size) dsp.set_fft_fps(fft_fps) dsp.set_fft_averages(int(round(1.0 * samp_rate / fft_size / fft_fps / (1.0 - fft_voverlap_factor))) if fft_voverlap_factor>0 else 0) dsp.set_fft_compression(fft_compression) dsp.set_format_conversion(format_conversion) dsp.csdr_dynamic_bufsize = pm.getPropertyValue("csdr_dynamic_bufsize") dsp.csdr_print_bufsizes = pm.getPropertyValue("csdr_print_bufsizes") dsp.csdr_through = pm.getPropertyValue("csdr_through") sleep_sec=0.87/fft_fps print("[openwebrx-spectrum] Spectrum thread initialized successfully.") dsp.start() if pm.getPropertyValue("csdr_dynamic_bufsize"): dsp.read(8) #dummy read to skip bufsize & preamble print("[openwebrx-spectrum] Note: CSDR_DYNAMIC_BUFSIZE_ON = 1") print("[openwebrx-spectrum] Spectrum thread started.") bytes_to_read=int(dsp.get_fft_bytes_to_read()) while self.doRun: data=dsp.read(bytes_to_read) if len(data) == 0: self.shutdown() else: for c in self.clients: c.write_spectrum_data(data) print("spectrum thread shut down") def add_client(self, c): self.clients.append(c) def remove_client(self, c): self.clients.remove(c) if not self.clients: self.shutdown() def shutdown(self): print("shutting down spectrum thread") SpectrumThread.sharedInstance = None self.doRun = False class DspManager(object): def __init__(self, handler): self.doRun = True self.handler = handler pm = PropertyManager.getSharedInstance() self.dsp = csdr.dsp() #dsp_initialized=False pm.getProperty("audio_compression").wire(self.dsp.set_audio_compression) pm.getProperty("fft_compression").wire(self.dsp.set_fft_compression) pm.getProperty("format_conversion").wire(self.dsp.set_format_conversion) self.dsp.set_offset_freq(0) self.dsp.set_bpf(-4000,4000) pm.getProperty("digimodes_fft_size").wire(self.dsp.set_secondary_fft_size) self.dsp.nc_port=pm.getPropertyValue("iq_server_port") self.dsp.csdr_dynamic_bufsize = pm.getPropertyValue("csdr_dynamic_bufsize") self.dsp.csdr_print_bufsizes = pm.getPropertyValue("csdr_print_bufsizes") self.dsp.csdr_through = pm.getPropertyValue("csdr_through") pm.getProperty("samp_rate").wire(self.dsp.set_samp_rate) #do_secondary_demod=False self.localProps = PropertyManager() self.localProps.getProperty("output_rate").wire(self.dsp.set_output_rate) self.localProps.getProperty("offset_freq").wire(self.dsp.set_offset_freq) self.localProps.getProperty("squelch_level").wire(self.dsp.set_squelch_level) def set_low_cut(cut): bpf = self.dsp.get_bpf() bpf[0] = cut self.dsp.set_bpf(*bpf) self.localProps.getProperty("low_cut").wire(set_low_cut) def set_high_cut(cut): bpf = self.dsp.get_bpf() bpf[1] = cut self.dsp.set_bpf(*bpf) self.localProps.getProperty("high_cut").wire(set_high_cut) def set_mod(mod): if (self.dsp.get_demodulator() == mod): return self.dsp.stop() self.dsp.set_demodulator(mod) self.dsp.start() self.localProps.getProperty("mod").wire(set_mod) if (pm.getPropertyValue("digimodes_enable")): def set_secondary_mod(mod): if mod == False: mod = None if self.dsp.get_secondary_demodulator() == mod: return self.stopSecondaryThreads() self.dsp.stop() if mod is None: self.dsp.set_secondary_demodulator(None) else: self.dsp.set_secondary_demodulator(mod) self.handler.write_secondary_dsp_config({ "secondary_fft_size":pm.getPropertyValue("digimodes_fft_size"), "if_samp_rate":self.dsp.if_samp_rate(), "secondary_bw":self.dsp.secondary_bw() }) self.dsp.start() if mod: self.startSecondaryThreads() self.localProps.getProperty("secondary_mod").wire(set_secondary_mod) self.localProps.getProperty("secondary_offset_freq").wire(self.dsp.set_secondary_offset_freq) super().__init__() def start(self): self.dsp.start() threading.Thread(target = self.readDspOutput).start() threading.Thread(target = self.readSMeterOutput).start() def startSecondaryThreads(self): self.runSecondary = True self.secondaryDemodThread = threading.Thread(target = self.readSecondaryDemod) self.secondaryDemodThread.start() self.secondaryFftThread = threading.Thread(target = self.readSecondaryFft) self.secondaryFftThread.start() def stopSecondaryThreads(self): self.runSecondary = False self.secondaryDemodThread = None self.secondaryFftThread = None def readDspOutput(self): while (self.doRun): data = self.dsp.read(256) if len(data) != 256: time.sleep(1) else: self.handler.write_dsp_data(data) def readSMeterOutput(self): while (self.doRun): level = self.dsp.get_smeter_level() self.handler.write_s_meter_level(level) def readSecondaryDemod(self): while (self.runSecondary): data = self.dsp.read_secondary_demod(1) self.handler.write_secondary_demod(data) def readSecondaryFft(self): while (self.runSecondary): data = self.dsp.read_secondary_fft(int(self.dsp.get_secondary_fft_bytes_to_read())) self.handler.write_secondary_fft(data) def stop(self): self.doRun = False self.runSecondary = False self.dsp.stop() def setProperty(self, prop, value): self.localProps.getProperty(prop).setValue(value) class CpuUsageThread(threading.Thread): sharedInstance = None @staticmethod def getSharedInstance(): if CpuUsageThread.sharedInstance is None: CpuUsageThread.sharedInstance = CpuUsageThread() CpuUsageThread.sharedInstance.start() return CpuUsageThread.sharedInstance def __init__(self): self.clients = [] self.doRun = True self.last_worktime = 0 self.last_idletime = 0 super().__init__() def run(self): while self.doRun: time.sleep(3) try: cpu_usage = self.get_cpu_usage() except: cpu_usage = 0 for c in self.clients: c.write_cpu_usage(cpu_usage) print("cpu usage thread shut down") def get_cpu_usage(self): try: f = open("/proc/stat","r") except: return 0 #Workaround, possibly we're on a Mac line = "" while not "cpu " in line: line=f.readline() f.close() spl = line.split(" ") worktime = int(spl[2]) + int(spl[3]) + int(spl[4]) idletime = int(spl[5]) dworktime = (worktime - self.last_worktime) didletime = (idletime - self.last_idletime) rate = float(dworktime) / (didletime+dworktime) self.last_worktime = worktime self.last_idletime = idletime if (self.last_worktime==0): return 0 return rate def add_client(self, c): self.clients.append(c) def remove_client(self, c): self.clients.remove(c) if not self.clients: self.shutdown() def shutdown(self): print("shutting down cpu usage thread") CpuUsageThread.sharedInstance = None self.doRun = False