134 lines
4.6 KiB
Python
134 lines
4.6 KiB
Python
# Copyright 2020 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 in CONTINUOUS_PICTURE mode."""
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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 its_base_test
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import camera_properties_utils
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import capture_request_utils
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import image_processing_utils
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import its_session_utils
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_CONTINUOUS_PICTURE_MODE = 4
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_CONVERGED_3A = (2, 2, 2) # (AE, AF, AWB)
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_M_TO_CM = 100
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_NAME = os.path.splitext(os.path.basename(__file__))[0]
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_NS_TO_MS = 1E-6
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_NUM_FRAMES = 50
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_PATCH_H = 0.1 # center 10%
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_PATCH_W = 0.1
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_PATCH_X = 0.5 - _PATCH_W/2
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_PATCH_Y = 0.5 - _PATCH_H/2
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_RGB_G_CH = 1
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_VGA_W, _VGA_H = 640, 480
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def _capture_frames(cam, log_path, debug):
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"""Captures frames, logs info, and creates cap_3a_state_list.
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Args:
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cam: a camera capture object.
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log_path: str to identify saved image location.
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debug: bool for debugging info.
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Returns:
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cap_3a_state_list: list of 3a states [AE, AF, AWB] during captures.
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"""
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cap_3a_state_list = []
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req = capture_request_utils.auto_capture_request()
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req['android.control.afMode'] = _CONTINUOUS_PICTURE_MODE
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fmt = {'format': 'yuv', 'width': _VGA_W, 'height': _VGA_H}
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caps = cam.do_capture([req]*_NUM_FRAMES, fmt)
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# Extract frame metadata and frame.
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for i, cap in enumerate(caps):
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md = cap['metadata']
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exp = md['android.sensor.exposureTime']
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iso = md['android.sensor.sensitivity']
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fd = md['android.lens.focalLength']
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ae_state = md['android.control.aeState']
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af_state = md['android.control.afState']
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awb_state = md['android.control.awbState']
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fd_str = 'infinity'
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if fd != 0.0:
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fd_str = f'{_M_TO_CM/fd:.2f}cm'
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img = image_processing_utils.convert_capture_to_rgb_image(cap)
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patch = image_processing_utils.get_image_patch(
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img, _PATCH_X, _PATCH_Y, _PATCH_W, _PATCH_H)
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green_mean = image_processing_utils.compute_image_means(patch)[_RGB_G_CH]
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logging.debug(
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'%d, iso: %d, exp: %.2fms, fd: %s, avg: %.3f, [ae,af,awb]'
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': [%d,%d,%d]', i, iso, exp * _NS_TO_MS, fd_str, green_mean, ae_state,
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af_state, awb_state)
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cap_3a_state_list.append([ae_state, af_state, awb_state])
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if debug:
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image_processing_utils.write_image(
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img, f'{os.path.join(log_path, _NAME)}_{i}.jpg')
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return cap_3a_state_list
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class ContinuousPictureTest(its_base_test.ItsBaseTest):
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"""Test 3A converges in CONTINUOUS_PICTURE mode.
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Sets camera into CONTINUOUS_PICTURE mode and does NUM_FRAMES capture.
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By the end of NUM_FRAMES capture, 3A should be in converged state.
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Converged state is [2, 2, 2] for [AE, AF, AWB]
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State information:
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AE_STATES: {0: INACTIVE, 1: SEARCHING, 2: CONVERGED, 3: LOCKED,
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4: FLASH_REQ, 5: PRECAPTURE}
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AF_STATES: {0: INACTIVE, 1: PASSIVE_SCAN, 2: PASSIVE_FOCUSED,
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3: ACTIVE_SCAN, 4: FOCUS_LOCKED, 5: NOT_FOCUSED_LOCKED,
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6: PASSIVE_UNFOCUSED}
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AWB_STATES: {0: INACTIVE, 1: SEARCHING, 2: CONVERGED, 3: LOCKED}
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"""
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def test_continuous_picture(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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log_path = self.log_path
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debug = self.debug_mode
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# Check SKIP conditions.
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camera_properties_utils.skip_unless(
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camera_properties_utils.continuous_picture(props) and
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camera_properties_utils.read_3a(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 up front.
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cam.do_3a()
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# Ensure 3A settles in CONTINUOUS_PICTURE mode with no scene change.
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cap_3a_state_list = _capture_frames(cam, log_path, debug)
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final_3a = cap_3a_state_list[_NUM_FRAMES-1]
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if final_3a != list(_CONVERGED_3A):
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raise AssertionError(
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f'Last frame [AE,AF,AWB]: {final_3a}. CONVERGED: {_CONVERGED_3A}.')
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if __name__ == '__main__':
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test_runner.main()
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