1# Copyright 2021 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14"""Verify jpeg capture latency for both front and back primary cameras.
15"""
16
17from mobly import test_runner
18
19import its_base_test
20import camera_properties_utils
21import its_session_utils
22
23# This must match MPC12_JPEG_CAPTURE_THRESHOLD in ItsTestActivity.java
24_JPEG_CAPTURE_S_PERFORMANCE_CLASS_THRESHOLD = 1000  # ms
25
26
27class JpegCaptureSPerfClassTest(its_base_test.ItsBaseTest):
28  """Test jpeg capture latency for S performance class as specified in CDD.
29
30  [2.2.7.2/7.5/H-1-5] MUST have camera2 JPEG capture latency < 1000ms for 1080p
31  resolution as measured by the CTS camera PerformanceTest under ITS lighting
32  conditions (3000K) for both primary cameras.
33  """
34
35  def test_jpeg_capture(self):
36    # Open camera with "with" semantics to check skip condition and load chart
37    #
38    with its_session_utils.ItsSession(
39        device_id=self.dut.serial,
40        camera_id=self.camera_id) as cam:
41
42      camera_properties_utils.skip_unless(
43          cam.is_primary_camera())
44
45      # Load chart for scene.
46      props = cam.get_camera_properties()
47      its_session_utils.load_scene(
48          cam, props, self.scene, self.tablet, self.chart_distance)
49
50    # Create an Its session without opening the camera to test camera jpeg
51    # capture latency because the test opens camera internally
52    cam = its_session_utils.ItsSession(
53        device_id=self.dut.serial,
54        camera_id=self.camera_id)
55
56    jpeg_capture_ms = cam.measure_camera_1080p_jpeg_capture_ms()
57
58    # Assert jpeg capture time if device claims performance class
59    if (cam.is_performance_class() and
60        jpeg_capture_ms >= _JPEG_CAPTURE_S_PERFORMANCE_CLASS_THRESHOLD):
61      raise AssertionError(f'1080p_jpeg_capture_time_ms: {jpeg_capture_ms}, '
62                           f'THRESH: '
63                           f'{_JPEG_CAPTURE_S_PERFORMANCE_CLASS_THRESHOLD}')
64
65    # Log jpeg capture time so that the corresponding MPC level can be written
66    # to report log. Text must match MPC12_JPEG_CAPTURE_PATTERN in
67    # ItsTestActivity.java.
68    print(f'1080p_jpeg_capture_time_ms:{jpeg_capture_ms}')
69
70if __name__ == '__main__':
71  test_runner.main()
72