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