blakeblackshear.frigate/frigate/test/test_copy_yuv_to_position.py

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import cv2
import numpy as np
from unittest import TestCase, main
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from frigate.util import get_yuv_crop, copy_yuv_to_position
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class TestCopyYuvToPosition(TestCase):
def setUp(self):
self.source_frame_bgr = np.zeros((400, 800, 3), np.uint8)
self.source_frame_bgr[:] = (0, 0, 255)
self.source_yuv_frame = cv2.cvtColor(
self.source_frame_bgr, cv2.COLOR_BGR2YUV_I420
)
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y, u1, u2, v1, v2 = get_yuv_crop(
self.source_yuv_frame.shape,
(
0,
0,
self.source_frame_bgr.shape[1],
self.source_frame_bgr.shape[0],
),
)
self.source_channel_dims = {
"y": y,
"u1": u1,
"u2": u2,
"v1": v1,
"v2": v2,
}
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self.dest_frame_bgr = np.zeros((400, 800, 3), np.uint8)
self.dest_frame_bgr[:] = (112, 202, 50)
self.dest_frame_bgr[100:300, 200:600] = (255, 0, 0)
self.dest_yuv_frame = cv2.cvtColor(self.dest_frame_bgr, cv2.COLOR_BGR2YUV_I420)
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def test_clear_position(self):
copy_yuv_to_position(self.dest_yuv_frame, (100, 100), (100, 100))
# cv2.imwrite(f"source_frame_yuv.jpg", self.source_yuv_frame)
# cv2.imwrite(f"dest_frame_yuv.jpg", self.dest_yuv_frame)
def test_copy_position(self):
copy_yuv_to_position(
self.dest_yuv_frame,
(100, 100),
(100, 200),
self.source_yuv_frame,
self.source_channel_dims,
)
# cv2.imwrite(f"source_frame_yuv.jpg", self.source_yuv_frame)
# cv2.imwrite(f"dest_frame_yuv.jpg", self.dest_yuv_frame)
def test_copy_position_full_screen(self):
copy_yuv_to_position(
self.dest_yuv_frame,
(0, 0),
(400, 800),
self.source_yuv_frame,
self.source_channel_dims,
)
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# cv2.imwrite(f"source_frame_yuv.jpg", self.source_yuv_frame)
# cv2.imwrite(f"dest_frame_yuv.jpg", self.dest_yuv_frame)
if __name__ == "__main__":
main(verbosity=2)