def test_set_standard(fd, input_or_output):
original_std_id = v4l2.v4l2_std_id()
try:
ioctl(fd, v4l2.VIDIOC_G_STD, original_std_id)
except IOError, e:
assert e.errno == errno.EINVAL
return
def test_query_standard(fd, input_):
std_id = v4l2.v4l2_std_id()
try:
ioctl(fd, v4l2.VIDIOC_QUERYSTD, std_id)
except IOError, e:
# this ioctl might not be supported on this device
assert e.errno == errno.EINVAL
return
def test_get_standard(fd, input_or_output):
std_id = v4l2.v4l2_std_id()
try:
ioctl(fd, v4l2.VIDIOC_G_STD, std_id)
except IOError, e:
assert e.errno == errno.EINVAL
# input/output may not support a standard
return
def test_set_standard(fd, input_or_output):
original_std_id = v4l2.v4l2_std_id()
try:
ioctl(fd, v4l2.VIDIOC_G_STD, original_std_id)
except IOError as e:
assert e.errno == errno.EINVAL
return
for std in get_device_standards(fd):
std_id = v4l2.v4l2_std_id(std.id)
ioctl(fd, v4l2.VIDIOC_S_STD, std_id)
bad_std_id = v4l2.v4l2_std_id(1 << 31)
try:
ioctl(fd, v4l2.VIDIOC_S_STD, bad_std_id)
except IOError as e:
assert e.errno == errno.EINVAL
ioctl(fd, v4l2.VIDIOC_S_STD, original_std_id)
def test_VIDIOC_S_STD(fd):
cap = v4l2.v4l2_capability()
ioctl(fd, v4l2.VIDIOC_QUERYCAP, cap)
def test_set_standard(fd, input_or_output):
original_std_id = v4l2.v4l2_std_id()
try:
ioctl(fd, v4l2.VIDIOC_G_STD, original_std_id)
except IOError, e:
assert e.errno == errno.EINVAL
return
for std in get_device_standards(fd):
std_id = v4l2.v4l2_std_id(std.id)
ioctl(fd, v4l2.VIDIOC_S_STD, std_id)
bad_std_id = v4l2.v4l2_std_id(1 << 31)
try:
ioctl(fd, v4l2.VIDIOC_S_STD, bad_std_id)
except IOError, e:
assert e.errno == errno.EINVAL