ASCEE/lasp
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Recording is working again. Sometimes it hangs on closing stream.

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This commit is contained in:
Anne de Jong 2019-12-18 10:02:20 +01:00
parent 3ea745245f
commit 0109056b5f
7 changed files with 147 additions and 94 deletions
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3
lasp/config.pxi.in
View File

@ -1,6 +1,9 @@
import numpy as np
cimport numpy as cnp
# Do this, our segfaults will be your destination
cnp.import_array()
DEF LASP_FLOAT = "@LASP_FLOAT@"
DEF LASP_DEBUG_CYTHON = "@LASP_DEBUG_CYTHON@"

10
lasp/device/lasp_daqconfig.py
View File

@ -74,6 +74,16 @@ class DAQConfiguration:
en_input_channels: list
def getEnabledChannels(self):
en_channels = []
for chan in self.en_input_channels:
if chan.channel_enabled:
en_channels.append(chan)
return en_channels
def getSensitivities(self):
return [float(channel.sensitivity) for channel in self.getEnabledChannels()]
@staticmethod
def loadConfigs():
"""

41
lasp/device/lasp_rtaudio.pyx
View File

@ -109,12 +109,12 @@ _formats_strkey = {
'64-bit floats': (RTAUDIO_FLOAT64, 8),
}
_formats_rtkey = {
RTAUDIO_SINT8: ('8-bit integers', 1),
RTAUDIO_SINT16: ('16-bit integers',2),
RTAUDIO_SINT8: ('8-bit integers', 1, cnp.NPY_INT8),
RTAUDIO_SINT16: ('16-bit integers',2, cnp.NPY_INT16),
RTAUDIO_SINT24: ('24-bit integers',3),
RTAUDIO_SINT32: ('32-bit integers',4),
RTAUDIO_FLOAT32: ('32-bit floats', 4),
RTAUDIO_FLOAT64: ('64-bit floats', 8),
RTAUDIO_SINT32: ('32-bit integers',4, cnp.NPY_INT32),
RTAUDIO_FLOAT32: ('32-bit floats', 4, cnp.NPY_FLOAT32),
RTAUDIO_FLOAT64: ('64-bit floats', 8, cnp.NPY_FLOAT64),
}
cdef class _Stream:
cdef:
@ -133,14 +133,15 @@ cdef class _Stream:
# It took me quite a long time to fully understand Cython's idiosyncrasies
# concerning C(++) callbacks, the GIL and passing Python objects as pointers
# into C(++) functions. But finally, here it is!
cdef object fromBufferToNPYNoCopy(buffer_format_type,
cdef object fromBufferToNPYNoCopy(
cnp.NPY_TYPES buffer_format_type,
void* buf,
size_t nchannels,
size_t nframes):
cdef cnp.npy_intp[2] dims = [nchannels, nframes];
cdef cnp.npy_intp[2] dims = [nchannels, nframes]
array = cnp.PyArray_SimpleNewFromData(2, dims, buffer_format_type,
buf)
array = cnp.PyArray_SimpleNewFromData(2, &dims[0], buffer_format_type,
buf).transpose()
return array
@ -163,7 +164,9 @@ cdef int audioCallback(void* outputBuffer,
Calls the Python callback function and converts data
"""
cdef int rval = 0
cdef:
int rval = 0
cnp.NPY_TYPES npy_format
with gil:
if status == RTAUDIO_INPUT_OVERFLOW:
@ -177,8 +180,17 @@ cdef int audioCallback(void* outputBuffer,
# Obtain stream information
npy_input = None
if stream.hasInput:
try:
assert inputBuffer != NULL
# cdef
npy_format = _formats_rtkey[stream.sampleformat][2]
npy_input = fromBufferToNPYNoCopy(
npy_format,
inputBuffer,
stream.inputParams.nChannels,
nFrames)
except Exception as e:
print('Exception in Cython callback: ', str(e))
try:
npy_output, rval = stream.pyCallback(npy_input,
nFrames,
@ -253,6 +265,7 @@ cdef class RtAudio:
sampleformats = sampleformats,
prefsamplerate = devinfo.preferredSampleRate)
@cython.nonecheck(True)
def openStream(self,object outputParams,
object inputParams,
str sampleformat,
@ -291,6 +304,7 @@ cdef class RtAudio:
self._stream = _Stream()
self._stream.pyCallback = pyCallback
self._stream.sampleformat = _formats_strkey[sampleformat][0]
if outputParams is not None:
rtOutputParams_ptr = &self._stream.outputParams
@ -300,7 +314,7 @@ cdef class RtAudio:
self._stream.hasOutput = True
if inputParams is not None:
rtOutputParams_ptr = &self._stream.inputParams
rtInputParams_ptr = &self._stream.inputParams
rtInputParams_ptr.deviceId = inputParams['deviceid']
rtInputParams_ptr.nChannels = inputParams['nchannels']
rtInputParams_ptr.firstChannel = inputParams['firstchannel']
@ -321,6 +335,9 @@ cdef class RtAudio:
except Exception as e:
print('Exception occured in stream opening: ', str(e))
self._stream = None
raise
return self._stream.bufferFrames
def startStream(self):
self._rtaudio.startStream()

75
lasp/lasp_avstream.py
View File

@ -22,22 +22,41 @@ class AvType:
class AvStream:
def __init__(self,
rtaudio_input,
rtaudio_output,
rtaudio,
output_device,
input_device,
output_device, daqconfig, video=None):
daqconfig, video=None):
self.daqconfig = daqconfig
self.input_device = input_device
self.output_device = output_device
# Determine highest input channel number
channelconfigs = daqconfig.en_input_channels
max_input_channel = 0
self._rtaudio = rtaudio
self.samplerate = int(daqconfig.en_input_rate)
self.sensitivity = self.daqconfig.getSensitivities()
for i, channelconfig in enumerate(channelconfigs):
if channelconfig.channel_enabled:
self.nchannels = i+1
try:
daq = DAQDevice(daqconfig)
self.nchannels = len(daq.channels_en)
self.samplerate = daq.input_rate
self.blocksize = daq.blocksize
self.sensitivity = np.asarray(daqconfig.input_sensitivity)[
daq.channels_en]
if input_device is not None:
inputparams = {'deviceid': input_device.index,
'nchannels': self.nchannels,
'firstchannel': 0}
self.blocksize = rtaudio.openStream(
None, # Outputparams
inputparams, #Inputparams
daqconfig.en_input_sample_format, # Sampleformat
self.samplerate,
2048,
self._audioCallback)
except Exception as e:
raise RuntimeError(f'Could not initialize DAQ device: {str(e)}')
@ -55,9 +74,11 @@ class AvStream:
self._video = video
self._video_started = Atomic(False)
self._callbacks = []
self._audiothread = None
self._videothread = None
def close(self):
self._rtaudio.closeStream()
def nCallbacks(self):
"""
Returns the current number of installed callbacks
@ -86,31 +107,15 @@ class AvStream:
if self._running:
raise RuntimeError('Stream already started')
assert self._audiothread is None
assert self._videothread is None
self._running <<= True
self._audiothread = Thread(target=self._audioThread)
if self._video is not None:
self._videothread = Thread(target=self._videoThread)
self._videothread.start()
else:
self._video_started <<= True
self._audiothread.start()
def _audioThread(self):
# Raw stream to allow for in24 packed data type
try:
daq = DAQDevice(self.daqconfig)
# Get a single block first and do not process it. This one often
# contains quite some rubbish.
data = daq.read()
while self._running:
# print('read data...')
data = daq.read()
self._audioCallback(data)
except RuntimeError as e:
print(f'Runtime error occured during audio capture: {str(e)}')
self._rtaudio.startStream()
def _videoThread(self):
cap = cv.VideoCapture(self._video)
@ -139,22 +144,20 @@ class AvStream:
cap.release()
print('stopped videothread')
def _audioCallback(self, indata):
"""This is called (from a separate thread) for each audio block."""
if not self._video_started:
return
def _audioCallback(self, indata, nframes, streamtime):
"""
This is called (from a separate thread) for each audio block.
"""
self._aframectr += 1
with self._callbacklock:
for cb in self._callbacks:
cb(AvType.audio, indata, self._aframectr(), self._vframectr())
self._aframectr += 1
return None, 0 if self._running else 1
def stop(self):
self._running <<= False
with self._running_cond:
self._running_cond.notify()
self._audiothread.join()
self._audiothread = None
if self._video:
self._videothread.join()
self._videothread = None

11
lasp/lasp_record.py
View File

@ -1,8 +1,6 @@
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat Mar 10 08:28:03 2018
Read data from stream and record sound and video at the same time
"""
import numpy as np
@ -34,6 +32,7 @@ class Recording:
self._fn = fn
self._video_frame_positions = []
self._curT_rounded_to_seconds = 0
self._aframeno = Atomic(0)
self._vframeno = 0
@ -104,8 +103,14 @@ class Recording:
self._vCallback(data)
def _aCallback(self, frames, aframe):
print('.', end='')
curT = self._aframeno()*self.blocksize/self.samplerate
curT_rounded_to_seconds = int(curT)
if curT_rounded_to_seconds > self._curT_rounded_to_seconds:
self._curT_rounded_to_seconds = curT_rounded_to_seconds
print(f'{curT_rounded_to_seconds}', end='', flush=True)
else:
print('.', end='', flush=True)
if self.rectime is not None and curT > self.rectime:
# We are done!
self._running <<= False

3
scripts/lasp_calibrate.py
View File

@ -26,7 +26,7 @@ parser.add_argument('--gain-setting', '-g',
type=float, default=gain_default)
parser.add_argument(
'fn', help='File name of calibration measurement', type=str)
'fn', help='File name of calibration measurement', type=str, default=None)
parser.add_argument('--channel', help='Channel of the device to calibrate, '
+ 'default = 0',
@ -51,6 +51,7 @@ prms = P_REF*10**(args.spl/20)
sens = Vrms / prms
print(f'Computed sensitivity: {sens[args.channel]:.5} V/Pa')
if args.fn:
print('Searching for files in directory to apply sensitivity value to...')
dir_ = os.path.dirname(args.fn)
for f in os.listdir(dir_):

60
scripts/lasp_record
View File

@ -1,5 +1,8 @@
#!/usr/bin/python
#!/usr/bin/python3
import argparse
parser = argparse.ArgumentParser(
description='Acquire data and store a measurement file'
)
@ -8,38 +11,49 @@ parser.add_argument('filename', type=str,
' Extension is automatically added.')
parser.add_argument('--duration', '-d', type=float,
help='The recording duration in [s]')
parser.add_argument('--comment', '-c', type=str,
help='Add a measurement comment, optionally')
device_help = 'DAQ Device to record from'
parser.add_argument('--input-daq', '-i', help=device_help, type=str,
choices=['roga', 'umik', 'nidaq', 'default'], default='roga')
default='Default')
args = parser.parse_args()
device_str = args.input_daq
if device_str == 'nidaq':
# Not-integrated way to record with the NI USB 4431 DAQ device
from lasp.device.record_ni import USBDAQRecording
rec = USBDAQRecording(args.filename, [0, 1])
rec.start()
exit(0)
from lasp.lasp_record import Recording
from lasp.lasp_avstream import AvStream
from lasp.device.lasp_daqconfig import default_soundcard, roga_plugndaq, umik
from lasp.lasp_record import Recording
from lasp.device import DAQConfiguration, RtAudio
if 'roga' == device_str:
device = roga_plugndaq
elif 'default' == device_str:
device = default_soundcard
elif 'umik' == device_str:
device = umik
config = DAQConfiguration.loadConfigs()[args.input_daq]
print(config)
rtaudio = RtAudio()
count = rtaudio.getDeviceCount()
devices = [rtaudio.getDeviceInfo(i) for i in range(count)]
input_devices = {}
for device in devices:
if device.inputchannels >= 0:
input_devices[device.name] = device
try:
input_device = input_devices[config.input_device_name]
except KeyError:
raise RuntimeError(f'Input device {config.input_device_name} not available')
print(input_device)
stream = AvStream(rtaudio,
None, # No output device
input_device,
config)
stream = AvStream(device)
rec = Recording(args.filename, stream, args.duration)
rec.start()
print('Stopping stream...')
stream.stop()
print('Stream stopped')
print('Closing stream...')
stream.close()
print('Stream closed')