def main():
if len(argv) != 2:
print >>stderr, "usage: %s video.flv" % argv[0]
exit(1)
# Open input video
inputname = unicode(argv[1], getTerminalCharset())
parser = createParser(inputname)
if parser["audio[0]/codec"].value != AUDIO_CODEC_MP3:
print >>stderr, "Unknown audio codec: %s" % parser["audio[0]/codec"].display
# Extract audio
print "Extractor audio from: %s" % inputname
outputname = inputname + ".mp3"
output = FileOutputStream(outputname)
for chunk in parser.array("audio"):
data = chunk["music_data"]
output.copyBitsFrom(data.parent.stream, data.absolute_address, data.size, data.parent.endian)
print "Write audio into: %s" % outputname
