| # 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. |
| """CameraITS test to see sensitivity param applied properly in burst or not. |
| """ |
| |
| from mobly import test_runner |
| |
| import its_base_test |
| import camera_properties_utils |
| import capture_request_utils |
| import its_session_utils |
| |
| NUM_STEPS = 3 |
| ERROR_TOLERANCE = 0.96 # Allow ISO to be rounded down by 4% |
| |
| |
| class ParamSensitivityBurstTest(its_base_test.ItsBaseTest): |
| """Test android.sensor.sensitivity parameter applied properly in burst. |
| |
| Inspects the output metadata only (not the image data). |
| """ |
| |
| def test_param_sensitivity_burst(self): |
| 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.manual_sensor(props) and |
| camera_properties_utils.per_frame_control(props)) |
| |
| sens_range = props['android.sensor.info.sensitivityRange'] |
| sens_step = (sens_range[1] - sens_range[0]) // NUM_STEPS |
| sens_list = range(sens_range[0], sens_range[1], sens_step) |
| exp = min(props['android.sensor.info.exposureTimeRange']) |
| assert exp != 0 |
| reqs = [ |
| capture_request_utils.manual_capture_request(s, exp) |
| for s in sens_list |
| ] |
| _, fmt = capture_request_utils.get_fastest_manual_capture_settings(props) |
| |
| caps = cam.do_capture(reqs, fmt) |
| for i, cap in enumerate(caps): |
| s_req = sens_list[i] |
| s_res = cap['metadata']['android.sensor.sensitivity'] |
| msg = 's_write: %d, s_read: %d, TOL: %.2f' % (s_req, s_res, |
| ERROR_TOLERANCE) |
| assert s_req >= s_res, msg |
| assert s_res / float(s_req) > ERROR_TOLERANCE, msg |
| |
| |
| if __name__ == '__main__': |
| test_runner.main() |