def test_CreateSilence(self):
self._sample_1.extract_channel(0)
self._sample_2.extract_channel(0)
channel = self._sample_1.get_channel(0)
extracter = ChannelFragmentExtracter(channel)
newchannel = extracter.extract_fragment(1*channel.get_framerate(),2*channel.get_framerate())
self.assertEqual(newchannel.get_nframes()/newchannel.get_framerate(), 1)
def fragment_channels( settings, begin, end, p=None ):
"""
Fragment channels of the settings.
@param settings: a list of dictionaries with extracted information from a settings file.
@param p is a progress dialog
"""
for channel in settings:
extracter = ChannelFragmentExtracter(channel['channel'])
channel['channel'] = extracter.extract_fragment(begin*channel['channel'].get_framerate(), end*channel['channel'].get_framerate())
del extracter
audio = signals.open(args.w)
if args.bf and args.bs:
print "bf option and bs option can't be used at the same time !"
sys.exit(1)
if args.ef and args.es:
print "ef option and es option can't be used at the same time !"
sys.exit(1)
if args.bf:
begin = args.bf
elif args.bs:
begin = args.bs*audio.get_framerate()
else:
begin = 0
if args.ef:
end = args.ef
elif args.es:
end = args.es*audio.get_framerate()
else:
end = 0
for i in xrange(audio.get_nchannels()):
idx = audio.extract_channel(i)
audio.rewind()
channel = audio.get_channel(idx)
extracter = ChannelFragmentExtracter(channel)
audio_out.append_channel(extracter.extract_fragment(begin, end))
signals.save(args.o, audio_out)
