source: python/demos/demo_sink_multi.py @ 4120fbc

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 4120fbc was 4120fbc, checked in by Paul Brossier <piem@piem.org>, 3 years ago

python/demos: python3 and double precision compatibility

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File size: 1020 bytes
Line 
1#! /usr/bin/env python
2
3import sys
4from aubio import source, sink
5
6if __name__ == '__main__':
7    if len(sys.argv) < 3:
8        print('usage: %s <inputfile> <outputfile> [samplerate] [hop_size]' % sys.argv[0])
9        sys.exit(1)
10
11    if len(sys.argv) > 3: samplerate = int(sys.argv[3])
12    else: samplerate = 0
13    if len(sys.argv) > 4: hop_size = int(sys.argv[4])
14    else: hop_size = 256
15
16    f = source(sys.argv[1], samplerate, hop_size)
17    if samplerate == 0: samplerate = f.samplerate
18    g = sink(sys.argv[2], samplerate, f.channels)
19
20    total_frames, read = 0, hop_size
21    while read:
22        vec, read = f.do_multi()
23        g.do_multi(vec, read)
24        total_frames += read
25    outstr = "wrote %.2fs" % (total_frames / float(samplerate))
26    outstr += " (%d frames in" % total_frames
27    outstr += " %d blocks" % (total_frames // f.hop_size)
28    outstr += " of %d channels" % f.channels
29    outstr += " at %dHz)" % f.samplerate
30    outstr += " from " + f.uri
31    outstr += " to " + g.uri
32    print(outstr)
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