Added audio recording to Vrecb
This commit is contained in:
Jack Jansen
parent
a557b0f34e
commit
09bf3e310b
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@ -34,9 +34,10 @@ import sgi
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# Usage and help functions (keep this up-to-date if you change the program!)
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def usage():
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print 'Usage: Vrecb [options] [moviefile]'
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print 'Usage: Vrecb [options] [moviefile [audiofile]]'
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print
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print 'Options:'
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print '-a : record audio as well'
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print '-r rate : capture 1 out of every "rate" frames', \
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'(default and min 1)'
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print '-w width : initial window width', \
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@ -66,6 +67,7 @@ def help():
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def main():
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format = SV.RGB8_FRAMES
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audio = 0
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rate = 1
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width = 0
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drop = 0
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@ -77,7 +79,7 @@ def main():
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number = 60
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'r:w:dg:mM:Gfn:')
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opts, args = getopt.getopt(sys.argv[1:], 'ar:w:dg:mM:Gfn:')
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except getopt.error, msg:
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sys.stdout = sys.stderr
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print 'Error:', msg, '\n'
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@ -86,6 +88,8 @@ def main():
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try:
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for opt, arg in opts:
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if opt == '-a':
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audio = 1
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if opt == '-r':
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rate = string.atoi(arg)
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if rate < 1:
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@ -120,11 +124,11 @@ def main():
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sys.exit(2)
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if not fields:
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print '-f option assumed until Jack fixes it'
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print '-f option assumed until somebody fixes it'
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fields = 1
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if args[2:]:
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sys.stderr.write('usage: Vrecb [options] [file]\n')
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sys.stderr.write('usage: Vrecb [options] [file [audiofile]]\n')
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sys.exit(2)
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if args:
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@ -132,6 +136,18 @@ def main():
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else:
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filename = 'film.video'
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if args[1:] and not audio:
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sys.stderr.write('-a turned on by appearance of 2nd file\n')
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audio = 1
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if audio:
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if args[1:]:
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audiofilename = args[1]
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else:
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audiofilename = 'film.aiff'
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else:
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audiofilename = None
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v = sv.OpenVideo()
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# Determine maximum window size based on signal standard
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param = [SV.BROADCAST, 0]
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@ -187,7 +203,8 @@ def main():
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if dev == DEVICE.LEFTMOUSE:
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if val == 1:
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info = format, x, y, number, rate
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record(v, info, filename, mono, grey, \
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record(v, info, filename, audiofilename, \
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mono, grey, \
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greybits, monotreshold, fields)
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elif dev == DEVICE.REDRAW:
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# Window resize (or move)
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@ -205,7 +222,8 @@ def main():
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# Record until the mouse is released (or any other GL event)
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# XXX audio not yet supported
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def record(v, info, filename, mono, grey, greybits, monotreshold, fields):
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def record(v, info, filename, audiofilename, \
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mono, grey, greybits, monotreshold, fields):
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import thread
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format, x, y, number, rate = info
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fps = 59.64 # Fields per second
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@ -214,6 +232,15 @@ def record(v, info, filename, mono, grey, greybits, monotreshold, fields):
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#
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# Go grab
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#
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if audiofilename:
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gl.wintitle('(start audio) ' + filename)
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audiodone = thread.allocate_lock()
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audiodone.acquire_lock()
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audiostart = thread.allocate_lock()
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audiostart.acquire_lock()
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audiostop = []
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initaudio(audiofilename, audiostop, audiostart, audiodone)
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audiostart.acquire_lock()
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gl.wintitle('(rec) ' + filename)
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try:
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ninfo, data, bitvec = v.CaptureBurst(info)
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@ -241,6 +268,9 @@ def record(v, info, filename, mono, grey, greybits, monotreshold, fields):
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#
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# Save
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#
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if filename and audiofilename:
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audiostop.append(None)
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audiodone.acquire_lock()
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if filename:
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#
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# Construct header and write it
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@ -308,6 +338,46 @@ def record(v, info, filename, mono, grey, greybits, monotreshold, fields):
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vout.close()
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gl.wintitle('(done) ' + filename)
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# Initialize audio recording
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AQSIZE = 8*8000 # XXX should be a user option
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def initaudio(filename, stop, start, done):
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import thread, aiff
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afile = aiff.Aiff().init(filename, 'w')
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afile.nchannels = AL.MONO
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afile.sampwidth = AL.SAMPLE_8
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params = [AL.INPUT_RATE, 0]
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al.getparams(AL.DEFAULT_DEVICE, params)
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print 'audio sampling rate =', params[1]
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afile.samprate = params[1]
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c = al.newconfig()
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c.setchannels(AL.MONO)
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c.setqueuesize(AQSIZE)
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c.setwidth(AL.SAMPLE_8)
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aport = al.openport(filename, 'r', c)
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thread.start_new_thread(audiorecord, (afile, aport, stop, start, done))
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# Thread to record audio samples
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# XXX should use writesampsraw for efficiency, but then destroy doesn't
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# XXX seem to set the #samples in the header correctly
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def audiorecord(afile, aport, stop, start, done):
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start.release_lock()
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leeway = 4
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while leeway > 0:
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if stop:
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leeway = leeway - 1
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data = aport.readsamps(AQSIZE/8)
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## afile.writesampsraw(data)
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afile.writesamps(data)
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del data
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afile.destroy()
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print 'Done writing audio'
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done.release_lock()
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# Don't forget to call the main program
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