| # Copyright 2021 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. |
| """Verify camera startup is < 600ms for both front and back primary cameras. |
| """ |
| |
| import logging |
| |
| from mobly import test_runner |
| |
| import camera_properties_utils |
| import its_base_test |
| import its_session_utils |
| |
| CAMERA_LAUNCH_S_PERFORMANCE_CLASS_THRESHOLD = 600 # ms |
| |
| |
| class CameraLaunchSPerfClassTest(its_base_test.ItsBaseTest): |
| """Test camera launch latency for S performance class as specified in CDD. |
| |
| [7.5/H-1-7] MUST have camera2 startup latency (open camera to first preview |
| frame) < 600ms as measured by the CTS camera PerformanceTest under ITS |
| lighting conditions (3000K) for both primary cameras. |
| """ |
| |
| def test_camera_launch(self): |
| # Open camera with "with" semantics to check skip condition and load chart |
| # |
| with its_session_utils.ItsSession( |
| device_id=self.dut.serial, |
| camera_id=self.camera_id) as cam: |
| |
| camera_properties_utils.skip_unless( |
| cam.is_performance_class_primary_camera()) |
| |
| # Load chart for scene. |
| props = cam.get_camera_properties() |
| its_session_utils.load_scene( |
| cam, props, self.scene, self.tablet, self.chart_distance) |
| |
| # Create an its session without opening the camera to test camera launch |
| # latency |
| cam = its_session_utils.ItsSession( |
| device_id=self.dut.serial, |
| camera_id=self.camera_id) |
| |
| launch_ms = cam.measure_camera_launch_ms() |
| if launch_ms >= CAMERA_LAUNCH_S_PERFORMANCE_CLASS_THRESHOLD: |
| raise AssertionError(f'camera launch time: {launch_ms} ms, THRESH: ' |
| f'{CAMERA_LAUNCH_S_PERFORMANCE_CLASS_THRESHOLD} ms') |
| else: |
| logging.debug('camera launch time: %.1f ms', launch_ms) |
| |
| if __name__ == '__main__': |
| test_runner.main() |