openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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import os
import time
import random
import numpy as np
from msgq.visionipc import VisionIpcServer, VisionIpcClient, VisionStreamType
def zmq_sleep(t=1):
if "ZMQ" in os.environ:
time.sleep(t)
class TestVisionIpc:
def setup_vipc(self, name, *stream_types, num_buffers=1, width=100, height=100, conflate=False):
self.server = VisionIpcServer(name)
for stream_type in stream_types:
self.server.create_buffers(stream_type, num_buffers, width, height)
self.server.start_listener()
if len(stream_types):
self.client = VisionIpcClient(name, stream_types[0], conflate)
assert self.client.connect(True)
else:
self.client = None
zmq_sleep()
return self.server, self.client
def test_connect(self):
self.setup_vipc("camerad", VisionStreamType.VISION_STREAM_ROAD)
assert self.client.is_connected
del self.client
del self.server
def test_available_streams(self):
for k in range(4):
stream_types = set(random.choices([x.value for x in VisionStreamType], k=k))
self.setup_vipc("camerad", *stream_types)
available_streams = VisionIpcClient.available_streams("camerad", True)
assert available_streams == stream_types
del self.client
del self.server
def test_buffers(self):
width, height, num_buffers = 100, 200, 5
self.setup_vipc("camerad", VisionStreamType.VISION_STREAM_ROAD, num_buffers=num_buffers, width=width, height=height)
assert self.client.width == width
assert self.client.height == height
assert self.client.buffer_len > 0
assert self.client.num_buffers == num_buffers
del self.client
del self.server
def test_send_single_buffer(self):
self.setup_vipc("camerad", VisionStreamType.VISION_STREAM_ROAD)
buf = np.zeros(self.client.buffer_len, dtype=np.uint8)
buf.view('<i4')[0] = 1234
self.server.send(VisionStreamType.VISION_STREAM_ROAD, buf, frame_id=1337)
recv_buf = self.client.recv()
assert recv_buf is not None
assert recv_buf.data.view('<i4')[0] == 1234
assert self.client.frame_id == 1337
del self.client
del self.server
def test_no_conflate(self):
self.setup_vipc("camerad", VisionStreamType.VISION_STREAM_ROAD)
buf = np.zeros(self.client.buffer_len, dtype=np.uint8)
self.server.send(VisionStreamType.VISION_STREAM_ROAD, buf, frame_id=1)
self.server.send(VisionStreamType.VISION_STREAM_ROAD, buf, frame_id=2)
recv_buf = self.client.recv()
assert recv_buf is not None
assert self.client.frame_id == 1
recv_buf = self.client.recv()
assert recv_buf is not None
assert self.client.frame_id == 2
del self.client
del self.server
def test_conflate(self):
self.setup_vipc("camerad", VisionStreamType.VISION_STREAM_ROAD, conflate=True)
buf = np.zeros(self.client.buffer_len, dtype=np.uint8)
self.server.send(VisionStreamType.VISION_STREAM_ROAD, buf, frame_id=1)
self.server.send(VisionStreamType.VISION_STREAM_ROAD, buf, frame_id=2)
recv_buf = self.client.recv()
assert recv_buf is not None
assert self.client.frame_id == 2
recv_buf = self.client.recv()
assert recv_buf is None
del self.client
del self.server