def read_header(cine_file: Union[str, bytes, os.PathLike]) -> Header:
with open(cine_file, "rb") as f:
header: Header = {
"cinefileheader": cine.CINEFILEHEADER(),
"bitmapinfoheader": cine.BITMAPINFOHEADER(),
"setup": cine.SETUP(),
"pImage": [],
"timestamp": np.empty(0),
"exposuretime": np.empty(0),
}
f.readinto(header["cinefileheader"])
f.readinto(header["bitmapinfoheader"])
f.seek(header["cinefileheader"].OffSetup)
f.readinto(header["setup"])
# header_length = ctypes.sizeof(header['cinefileheader'])
# bitmapinfo_length = ctypes.sizeof(header['bitmapinfoheader'])
f.seek(header["cinefileheader"].OffImageOffsets)
header["pImage"] = struct.unpack(
f"{header['cinefileheader'].ImageCount}q",
f.read(header["cinefileheader"].ImageCount * 8))
header = read_tagged_block(f, header)
return header
def read_chd_header(chd_file):
"""
read the .chd header file created when Vision Research software saves the images in a file format other than .cine
"""
with open(chd_file, "rb") as f:
header = {
"cinefileheader": cine.CINEFILEHEADER(),
"bitmapinfoheader": cine.BITMAPINFOHEADER(),
"setup": cine.SETUP(),
}
f.readinto(header["cinefileheader"])
f.readinto(header["bitmapinfoheader"])
f.readinto(header["setup"])
return header
def read_chd_header(chd_file: Union[str, bytes, os.PathLike]) -> Header:
"""
read the .chd header file created when Vision Research software saves the images in a file format other than .cine
"""
with open(chd_file, "rb") as f:
header: Header = {
"cinefileheader": cine.CINEFILEHEADER(),
"bitmapinfoheader": cine.BITMAPINFOHEADER(),
"setup": cine.SETUP(),
"pImage": [],
"timestamp": np.empty(0),
"exposuretime": np.empty(0),
}
f.readinto(header["cinefileheader"])
f.readinto(header["bitmapinfoheader"])
f.seek(header["cinefileheader"].OffSetup)
f.readinto(header["setup"])
return header
def read_header(cine_file):
with open(cine_file, "rb") as f:
header = {
"cinefileheader": cine.CINEFILEHEADER(),
"bitmapinfoheader": cine.BITMAPINFOHEADER(),
"setup": cine.SETUP(),
}
f.readinto(header["cinefileheader"])
f.readinto(header["bitmapinfoheader"])
f.readinto(header["setup"])
# header_length = ctypes.sizeof(header['cinefileheader'])
# bitmapinfo_length = ctypes.sizeof(header['bitmapinfoheader'])
f.seek(header["cinefileheader"].OffImageOffsets)
header["pImage"] = struct.unpack(
"{}q".format(header["cinefileheader"].ImageCount),
f.read(header["cinefileheader"].ImageCount * 8))
return header