def __init__(self,
interface="all",
camera_num=0,
*,
metadata_mode=False,
timestamp_mode=True):
"""
pco.sdk_manual page 10:
First step is to PCO_OpenCamera
As next step camera description and status should be queried
by calling PCO_GetCameraDescription and PCO_GetCameraHealthStatus
"""
print("interface =", interface)
print("camera_num =", camera_num)
self.handle = pf.PCO_OpenCameraEx(interface, camera_num)
self.camera_description = pf.PCO_GetCameraDescription(self.handle)
warn, err, status = self.health_status()
if warn or err:
print("Warning bits :", warn)
print("Error bits :", err)
else:
print("Connected to", pf.PCO_GetInfoString(self.handle))
print("Status bits :", status)
pf.PCO_SetBitAlignment(self.handle, sys.byteorder == "little")
self.metadata_mode = metadata_mode
self.timestamp_mode = timestamp_mode
if timestamp_mode:
# Timestamp is supported by all cameras but the information
# is written on the first 14 pixels of the transfered image
pf.PCO_SetTimestampMode(
self.handle,
0x0001) # binary mode (BCD coded in the first 14 px)
else:
pf.PCO_SetTimestampMode(self.handle, 0x0000)
if metadata_mode:
# MetaData is supported on pco.dimax and pco.edge only
MetaDataSize, MetaDataVersion = pf.PCO_SetMetaDataMode(
self.handle, True)
self.MetaDataSize = MetaDataSize
self.MetaDataVersion = MetaDataVersion
buffer.bufPtr[:14])
stop_signal = yield MetadataArray(
buffer.as_array(),
metadata={
"counter": counter,
"timestamp": dt
},
)
else:
stop_signal = yield buffer.as_array()
count += 1
pf.PCO_AddBufferEx(self.handle, 0, 0, buffer.bufNr,
XResAct, YResAct, 16)
else:
break
if stop_signal:
break
if stop_signal:
break
finally:
pf.PCO_SetRecordingState(self.handle, False)
pf.PCO_CancelImages(self.handle)
if stop_signal:
yield True
if __name__ == "__main__":
h = pf.PCO_OpenCameraEx("USB 3.0", 0)
pf.PCO_GetInfoString(h)
pf.PCO_CloseCamera(h)