84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
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# Copyright 2013 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Verifies 3A converges with gray chart scene."""
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import logging
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import os.path
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from mobly import test_runner
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import numpy as np
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import its_base_test
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import camera_properties_utils
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import its_session_utils
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_AWB_GAINS_LENGTH = 4
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_AWB_XFORM_LENGTH = 9
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_NAME = os.path.splitext(os.path.basename(__file__))[0]
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def assert_is_number(x):
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if np.isnan(x):
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raise AssertionError(f'{x} is not a number!')
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class ThreeATest(its_base_test.ItsBaseTest):
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"""Test basic camera 3A behavior.
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To pass, 3A must converge. Check that returned 3A values are valid.
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"""
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def test_3a(self):
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logging.debug('Starting %s', _NAME)
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with its_session_utils.ItsSession(
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device_id=self.dut.serial,
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camera_id=self.camera_id,
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hidden_physical_id=self.hidden_physical_id) as cam:
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props = cam.get_camera_properties()
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props = cam.override_with_hidden_physical_camera_props(props)
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camera_properties_utils.skip_unless(
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camera_properties_utils.read_3a(props))
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mono_camera = camera_properties_utils.mono_camera(props)
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# Load chart for scene
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its_session_utils.load_scene(
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cam, props, self.scene, self.tablet, self.chart_distance)
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# Do 3A and evaluate outputs
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s, e, awb_gains, awb_xform, focus = cam.do_3a(
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get_results=True, mono_camera=mono_camera)
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logging.debug('AWB: gains %s, xform %s', str(awb_gains), str(awb_xform))
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logging.debug('AE: sensitivity %d, exposure %dns', s, e)
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logging.debug('AF: distance %.3f', focus)
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if len(awb_gains) != _AWB_GAINS_LENGTH:
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raise AssertionError(
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f'AWB gains has unexpected # of terms! {awb_gains}')
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for g in awb_gains:
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assert_is_number(g)
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if len(awb_xform) != _AWB_XFORM_LENGTH:
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raise AssertionError(
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f'AWB transform has unexpected # of terms! {awb_xform}')
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for x in awb_xform:
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assert_is_number(x)
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if s <= 0:
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raise AssertionError(f'sensitivity {s} <= 0!')
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if e <= 0:
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raise AssertionError(f'exposure {e} <= 0!')
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if focus < 0:
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raise AssertionError(f'focus distance {focus} < 0!')
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if __name__ == '__main__':
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test_runner.main()
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