test_formats.py revision 4902d71d230d21639be817a83e8998230a6ff5e0 
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
20import copy
21
22def main():
23    """Test that the reported sizes and formats for image capture work.
24    """
25    NAME = os.path.basename(__file__).split(".")[0]
26
27    with its.device.ItsSession() as cam:
28        props = cam.get_camera_properties()
29        for size in props['android.scaler.availableProcessedSizes']:
30            req = its.objects.manual_capture_request(100,10)
31            out_surface = copy.deepcopy(size)
32            out_surface["format"] = "yuv"
33            fname, w, h, cap_md = cam.do_capture(req, out_surface)
34            assert(os.path.splitext(fname)[1] == ".yuv")
35            assert(w == size["width"] and h == size["height"])
36            assert(os.path.getsize(fname) == w*h*3/2)
37            print "Successfully captured YUV %dx%d" % (w, h)
38        for size in props['android.scaler.availableJpegSizes']:
39            req = its.objects.manual_capture_request(100,10)
40            out_surface = copy.deepcopy(size)
41            out_surface["format"] = "jpg"
42            fname, w, h, cap_md = cam.do_capture(req, out_surface)
43            assert(os.path.splitext(fname)[1] == ".jpg")
44            assert(w == size["width"] and h == size["height"])
45            img = Image.open(fname)
46            assert(img.size[0] == size["width"])
47            assert(img.size[1] == size["height"])
48            print "Successfully captured JPEG %dx%d" % (w, h)
49
50if __name__ == '__main__':
51    main()
52
53