test_formats.py revision 12339cdd90b2c98eb4f7adf794ddca8de53992b8 
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
15import its.image
16import its.device
17import its.objects
18import os.path
19import Image
20
21def main():
22    """Test that the reported sizes and formats for image capture work.
23    """
24    NAME = os.path.basename(__file__).split(".")[0]
25
26    with its.device.ItsSession() as cam:
27        props = cam.get_camera_properties()
28        for size in props['android.scaler.availableProcessedSizes']:
29            req = its.objects.capture_request({"android.control.aeMode": 0})
30            req["outputSurface"] = size
31            req["outputSurface"]["format"] = "yuv"
32            fname, w, h, cap_md = cam.do_capture(req)
33            assert(os.path.splitext(fname)[1] == ".yuv")
34            assert(w == size["width"] and h == size["height"])
35            assert(os.path.getsize(fname) == w*h*3/2)
36            print "Successfully captured YUV %dx%d" % (w, h)
37        for size in props['android.scaler.availableJpegSizes']:
38            req = its.objects.capture_request({"android.control.aeMode": 0})
39            req["outputSurface"] = size
40            req["outputSurface"]["format"] = "jpg"
41            fname, w, h, cap_md = cam.do_capture(req)
42            assert(os.path.splitext(fname)[1] == ".jpg")
43            assert(w == size["width"] and h == size["height"])
44            img = Image.open(fname)
45            assert(img.size[0] == size["width"])
46            assert(img.size[1] == size["height"])
47            print "Successfully captured JPEG %dx%d" % (w, h)
48
49if __name__ == '__main__':
50    main()
51
52