I have an image buffer returned from a C SDK,
I can write to a local image and read it as base64 string but this requires an extra step.
How can I turn the byte array into a base64 string directly so that I can send it in a network request?
image = (ctypes.c_ubyte*s.dwDataLen)()
ctypes.memmove(image, s.pBuffer, s.dwDataLen)
I tried using base64.encodestring but got this error
TypeError: expected single byte elements, not '<B' from c_ubyte_Array_8716
you can use base64 module
import base64
with open("yourfile.ext", "rb") as image_file:
encoded_string = base64.b64encode(image_file.read())
the case is similar with Encoding an image file with base64
Try this:
import ctypes
import base64
image = (ctypes.c_ubyte * s.dwDataLen)()
ctypes.memmove(image, s.pBuffer, s.dwDataLen)
# Convert the image to an array of bytes
buffer = bytearray(image)
encoded = base64.encodebytes(buffer)
If you are using base64.b64encode, you should be able to pass image to it:
import ctypes
import base64
image = (ctypes.c_ubyte * s.dwDataLen)()
ctypes.memmove(image, s.pBuffer, s.dwDataLen)
encoded = base64.b64encode(image)
s.pBuffer? There may be a way to eliminate the extra copy to another buffer type.base64.b64encode