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import argparse
import PyTango
import sys
import time
import numpy as np
try:
import progressbar
HAVE_PROGRESSBAR = True
except ImportError:
HAVE_PROGRESSBAR = False
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('device', type=str,
help='TANGO device address')
parser.add_argument('-n', '--number', type=int, default=1000,
help='Number of frames to acquire')
args = parser.parse_args()
camera = PyTango.DeviceProxy(args.device)
camera.exposure_time = 0.0001
camera.Start()
start = time.time()
size = 0
if HAVE_PROGRESSBAR:
progress = progressbar.ProgressBar(max_value=args.number, redirect_stdout=True)
else:
progress = lambda x: x
print("Recording {} frames ...".format(args.number))
for i in progress(range(args.number)):
try:
frame = camera.image
except:
camera.Stop()
print("Failure after {} frames".format(i))
sys.exit(0)
size += frame.nbytes
if HAVE_PROGRESSBAR:
progress.update(i)
end = time.time()
camera.Stop()
print("Bandwidth: {:.3f} MB/s".format(size / (end - start) / 1024. / 1024.))
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