He all-
is there a way to implement a button controlling a record-to-file function
where the filename is generated instantly from the current time stamp? I can
do this manually in python as follows (taken from a previously existing
gnuradio code):
#
# Recording file, in case we ever need to record baseband data
#
self.recording = gr.file_sink(gr.sizeof_float, "/dev/null")
self.recording_state = False
# Filename prefix for recording file
self.prefix = options.prefix
# We come up with recording turned off, but the user may
# request recording later on
self.recording.close()
.
.
.
self.connect (self.source, self.recording)
.
.
.
# Data recording control
buttonbox = wx.BoxSizer(wx.HORIZONTAL)
self.record_control = form.button_with_callback(self.panel,
label="Recording Data: Off
",
callback=self.toggle_recording)
buttonbox.Add(self.record_control, 0, wx.CENTER)
.
.
.
#
# Turn recording on/off
# Called-back by "Recording" button
#
def toggle_recording(self):
# Pick up localtime, for generating filenames
timestamp = time.localtime()
# Generate filenames for both data and header file
filename = "%04d_%02d_%02d_%02d:%02d:%02d.dat" % (timestamp.tm_year,
timestamp.tm_mon,
timestamp.tm_mday, timestamp.tm_hour, timestamp.tm_min,timestamp.tm_sec)
# Current recording? Flip state
if (self.recording_state == True):
self.recording_state = False
self.record_control.SetLabel("Recording Data: Off
")
self.recording.close()
# Not recording?
else:
self.recording_state = True
self.record_control.SetLabel("Recording Data to: "+filename)
# Cause gr_file_sink object to accept new filename
# note use of self.prefix--filename prefix from
# command line (defaults to ./)
#
self.recording.open (self.prefix+filename)
Thanks!
eric
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