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equalizer.py: Commandline parameter -s for mode with slower updates

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This commit is contained in:
Petr Baudis 2012-08-19 23:47:28 +02:00
parent 45b17988c6
commit e766987e35
1 changed files with 12 additions and 4 deletions
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16
host_python/equalizer.py
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@ -19,12 +19,10 @@ RATE = 44100
PIXELS = 20 PIXELS = 20
SLOW = 0
HISTORY_SIZE = 4 HISTORY_SIZE = 4
SAMPLE_SIZE = CHUNK_SIZE*HISTORY_SIZE
MIN_FREQ = 20 MIN_FREQ = 20
MAX_FREQ = 12000 MAX_FREQ = 12000
FREQ_STEP = float(RATE) / (CHUNK_SIZE * HISTORY_SIZE)
PIXEL_FREQ_RANGE = math.pow(float(MAX_FREQ) / MIN_FREQ, 1.0/PIXELS)
def print_usage(): def print_usage():
@ -33,11 +31,12 @@ USAGE:
%s [-n number] [-h] %s [-n number] [-h]
OPTIONS: OPTIONS:
-n number number of controlled boxes -n number number of controlled boxes
-s slow mode
-h --help show this help -h --help show this help
''' % sys.argv[0] ''' % sys.argv[0]
try: try:
opts, args = getopt.getopt(sys.argv[1:], 'n:h', ['help']) opts, args = getopt.getopt(sys.argv[1:], 'n:sh', ['help'])
except getopt.GetOptError: except getopt.GetOptError:
print_usage() print_usage()
sys.exit(1) sys.exit(1)
@ -50,10 +49,19 @@ for k, v in opts:
print_usage() print_usage()
sys.exit(1) sys.exit(1)
PIXELS = int(v) PIXELS = int(v)
elif k == '-s':
SLOW = 1
elif k == '-h' or k == '--help': elif k == '-h' or k == '--help':
print_usage() print_usage()
sys.exit(0) sys.exit(0)
if SLOW == 1:
HISTORY_SIZE = 12
SAMPLE_SIZE = CHUNK_SIZE*HISTORY_SIZE
FREQ_STEP = float(RATE) / (CHUNK_SIZE * HISTORY_SIZE)
PIXEL_FREQ_RANGE = math.pow(float(MAX_FREQ) / MIN_FREQ, 1.0/PIXELS)
p = pyaudio.PyAudio() p = pyaudio.PyAudio()