source: python/demos/demo_sink.py @ e76eaf1

#! /usr/bin/env python

import sys
from aubio import source, sink

if __name__ == '__main__':
  if len(sys.argv) < 3:
    print 'usage: %s <inputfile> <outputfile> [samplerate] [hop_size]' % sys.argv[0]
    sys.exit(1)

  if len(sys.argv) > 3: samplerate = int(sys.argv[3])
  else: samplerate = 0
  if len(sys.argv) > 4: hop_size = int(sys.argv[4])
  else: hop_size = 256

  f = source(sys.argv[1], samplerate, hop_size)
  if samplerate == 0: samplerate = f.samplerate
  g = sink(sys.argv[2], samplerate)

  total_frames, read = 0, hop_size
  while read:
    vec, read = f()
    g(vec, read)
    total_frames += read
  print "wrote", "%.2fs" % (total_frames / float(samplerate) ),
  print "(", total_frames, "frames", "in", total_frames % hop_size, "blocks", "at", "%dHz" % samplerate, ")",
  print "from", f.uri,
  print "to", g.uri