apps/CameraITS/tests/test_formats.py

# Copyright 2013 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import its.image
import its.device
import its.objects
import os.path
import Image
import copy

def main():
    """Test that the reported sizes and formats for image capture work.
    """
    NAME = os.path.basename(__file__).split(".")[0]

    with its.device.ItsSession() as cam:
        props = cam.get_camera_properties()
        for size in props['android.scaler.availableProcessedSizes']:
            req = its.objects.manual_capture_request(100,10)
            out_surface = copy.deepcopy(size)
            out_surface["format"] = "yuv"
            fname, w, h, cap_md = cam.do_capture(req, out_surface)
            assert(os.path.splitext(fname)[1] == ".yuv")
            assert(w == size["width"] and h == size["height"])
            assert(os.path.getsize(fname) == w*h*3/2)
            print "Successfully captured YUV %dx%d" % (w, h)
        for size in props['android.scaler.availableJpegSizes']:
            req = its.objects.manual_capture_request(100,10)
            out_surface = copy.deepcopy(size)
            out_surface["format"] = "jpg"
            fname, w, h, cap_md = cam.do_capture(req, out_surface)
            assert(os.path.splitext(fname)[1] == ".jpg")
            assert(w == size["width"] and h == size["height"])
            img = Image.open(fname)
            assert(img.size[0] == size["width"])
            assert(img.size[1] == size["height"])
            print "Successfully captured JPEG %dx%d" % (w, h)

if __name__ == '__main__':
    main()