def autoCreateCapture(src,
size=(640, 480),
fps=30,
timestamps=None,
timebase=None):
# checking src and handling all cases:
src_type = type(src)
#looking for attached cameras that match the suggested names
if src_type is list:
matching_devices = []
for device in Camera_List():
if any([s in device.name for s in src]):
matching_devices.append(device)
if len(matching_devices) > 1:
logger.warning(
'Found %s as devices that match the src string pattern Using the first one.'
% [d.name for d in matching_devices])
if len(matching_devices) == 0:
logger.error('No device found that matched %s' % src)
return FakeCapture(size, fps, timebase=timebase)
cap = Camera_Capture(matching_devices[0],
filter_sizes(matching_devices[0], size), fps,
timebase)
logger.info("Camera selected: %s with id: %s" %
(cap.name, cap.src_id))
return cap
#looking for attached cameras that match cv_id
elif src_type is int:
for device in Camera_List():
if device.src_id == src:
cap = Camera_Capture(device, filter_sizes(device, size), fps,
timebase)
logger.info("Camera selected: %s with id: %s" %
(cap.name, cap.src_id))
return cap
#control not supported for windows: init capture without uvc controls
cap = Camera_Capture(src, size, fps, timebase)
logger.warning('No UVC support: Using camera with id: %s' % src)
return cap
#looking for videofiles
elif src_type is str:
if not isfile(src):
logger.error('Could not locate VideoFile %s' % src)
raise FileCaptureError('Could not locate VideoFile %s' % src)
logger.info("Using %s as video source" % src)
return File_Capture(src, timestamps=timestamps)
else:
logger.error(
"autoCreateCapture: Could not create capture, wrong src_type")
return FakeCapture(size, fps, timebase=timebase)
def autoCreateCapture(src, timestamps=None, timebase=None):
preferred_idx = 0
# checking src and handling all cases:
src_type = type(src)
if src_type is tuple:
src, preferred_idx = src
src_type = type(src)
#looking for attached cameras that match the suggested names
if src_type is list:
matching_devices = []
for device in device_list():
if any([s in device['name'] for s in src]):
matching_devices.append(device)
if len(matching_devices) > preferred_idx:
logger.info(
'Found %s as devices that match the src string pattern Using the %s match.'
% ([d['name'] for d in matching_devices],
('first', 'second', 'third', 'fourth')[preferred_idx]))
else:
if len(matching_devices) == 0:
logger.error('No device found that matched %s' % src)
else:
logger.error('Not enough devices found that matched %s' % src)
return FakeCapture(timebase=timebase)
cap = Camera_Capture(matching_devices[preferred_idx]['uid'], timebase)
logger.info("Camera selected: %s with id: %s" %
(matching_devices[preferred_idx]['name'],
matching_devices[preferred_idx]['uid']))
return cap
#looking for attached cameras that match cv_id
elif src_type is int:
try:
cap = device_list()[i]
except IndexError, e:
logger.warning('Camera with id %s not found.' % src_type)
return FakeCapture(timebase=timebase)
else:
return Camera_Capture(cap['uid'], size, fps, timebase)
logger.error('Not enough devices found that matched %s' % src)
return FakeCapture(timebase=timebase)
cap = Camera_Capture(matching_devices[preferred_idx]['uid'], timebase)
logger.info("Camera selected: %s with id: %s" %
(matching_devices[preferred_idx]['name'],
matching_devices[preferred_idx]['uid']))
return cap
#looking for attached cameras that match cv_id
elif src_type is int:
try:
cap = device_list()[i]
except IndexError, e:
logger.warning('Camera with id %s not found.' % src_type)
return FakeCapture(timebase=timebase)
else:
return Camera_Capture(cap['uid'], size, fps, timebase)
#looking for videofiles
elif src_type is str:
if not isfile(src):
logger.error('Could not locate VideoFile %s' % src)
raise FileCaptureError('Could not locate VideoFile %s' % src)
logger.info("Using %s as video source" % src)
return File_Capture(src, timestamps=timestamps)
else:
logger.error(
"autoCreateCapture: Could not create capture, wrong src_type")
return FakeCapture(size, fps, timebase=timebase)