def close(self):
"""
close video
"""
ret = libatlas.CloseVideo(self._channel_id)
if ret != SUCCESS:
acl_logger.log_info("ERROR:Close %s failed" % (self._name))
def read(self):
frame = ImageDataC()
image = None
ret = libatlas.ReadDecodedFrame(self._channel_id, byref(frame))
if ret == READ_VIDEO_OK:
image = AclImage(addressof(frame.data.contents), frame.width,
frame.height, frame.size, MEMORY_DVPP)
elif ret == VIDEO_DECODE_FINISH:
log_info("Video has been read finished")
else:
log_error("Read frame error: ", ret)
return ret, image
def read(self):
"""
read decode frame and output status information
"""
frame = ImageDataC()
image = None
ret = libatlas.ReadDecodedFrame(self._channel_id, byref(frame))
if ret == READ_VIDEO_OK:
image = acl_image.AclImage(addressof(frame.data.contents),
frame.width, frame.height, frame.size,
MEMORY_DVPP)
if ret == READ_VIDEO_ERROR:
acl_logger.log_error("Read frame error")
elif ret == READ_VIDEO_NOFRAME:
acl_logger.log_info("No frame to read")
elif ret == READ_VIDEO_FINISHED:
acl_logger.log_info("Read video finished")
return ret, image
def StartPresenterAgent(msg_queue, server_ip, port, open_status,
data_respone_counter):
agent = PresenterAgent(server_ip, port)
ret = agent.connect_server()
if ret:
log_error("Connect server failed, ret =", ret)
return
open_status.value = datatype.STATUS_CONNECTED
while True:
data = msg_queue.get()
if data is None:
continue
if isinstance(data, datatype.FinishMsg):
log_info("Receive presenter agent exit notification, queue size ",
msg_queue.qsize())
time.sleep(0.1)
agent.exit()
break
agent.socket.send_msg(data)
msg_name, msg_body = agent.socket.recv_msg()
if (msg_name == None) or (msg_body == None):
log_error("Recv invalid message, message name ", msg_name)
continue
if ((open_status.value == datatype.STATUS_CONNECTED)
and pm.is_open_channel_response(msg_name)):
log_info("Received open channel respone")
open_status.value = datatype.STATUS_OPENED
agent.start_heard_beat_thread()
log_info("presenter agent change connect_status to ",
open_status.value)
if ((open_status.value == datatype.STATUS_OPENED)
and pm.is_image_frame_response(msg_name)):
data_respone_counter.value += 1
def destroy(self):
if self._is_destroyed is False:
self.close()
self._is_destroyed = True
resource_list.unregister(self)
log_info("Video decoder ok")