1 # Copyright 2013 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 15 import its.image 16 import its.caps 17 import its.device 18 import its.objects 19 import its.target 20 import os.path 21 22 def main(): 23 """Test that the android.flash.mode parameter is applied. 24 """ 25 NAME = os.path.basename(__file__).split(".")[0] 26 27 with its.device.ItsSession() as cam: 28 props = cam.get_camera_properties() 29 if not its.caps.compute_target_exposure(props): 30 print "Test skipped" 31 return 32 33 flash_modes_reported = [] 34 flash_states_reported = [] 35 g_means = [] 36 37 # Manually set the exposure to be a little on the dark side, so that 38 # it should be obvious whether the flash fired or not, and use a 39 # linear tonemap. 40 e, s = its.target.get_target_exposure_combos(cam)["midExposureTime"] 41 e /= 4 42 req = its.objects.manual_capture_request(s, e, True) 43 44 for f in [0,1,2]: 45 req["android.flash.mode"] = f 46 cap = cam.do_capture(req) 47 flash_modes_reported.append(cap["metadata"]["android.flash.mode"]) 48 flash_states_reported.append(cap["metadata"]["android.flash.state"]) 49 img = its.image.convert_capture_to_rgb_image(cap) 50 its.image.write_image(img, "%s_mode=%d.jpg" % (NAME, f)) 51 tile = its.image.get_image_patch(img, 0.45, 0.45, 0.1, 0.1) 52 rgb = its.image.compute_image_means(tile) 53 g_means.append(rgb[1]) 54 55 assert(flash_modes_reported == [0,1,2]) 56 assert(flash_states_reported[0] not in [3,4]) 57 assert(flash_states_reported[1] in [3,4]) 58 assert(flash_states_reported[2] in [3,4]) 59 60 print "G brightnesses:", g_means 61 assert(g_means[1] > g_means[0]) 62 assert(g_means[2] > g_means[0]) 63 64 if __name__ == '__main__': 65 main() 66 67
