ref: 2c8ada64b37bb68c5f5ce274b9ecf90a779aaef0
dir: /python/demos/demo_source_simple.py/
#! /usr/bin/env python
import sys
import aubio
samplerate = 0 # use original source samplerate
hop_size = 256 # number of frames to read in one block
src = aubio.source(sys.argv[1], samplerate, hop_size)
total_frames = 0
while True:
samples, read = src() # read hop_size new samples from source
total_frames += read # increment total number of frames
if read < hop_size: break # end of file reached
fmt_string = "read {:d} frames at {:d}Hz from {:s}"
print (fmt_string.format(total_frames, src.samplerate, src.uri))