get_jpeg_from_mjpeg.py

JPEG_START_BYTE = '\xff\xd8'
JPEG_END_BYTE = '\xff\xd9'


def get_jpeg(stream):

    start_pos = None
    end_pos = None
    while True:
        frame_bytes = stream.read(1024)
        start_pos = None
        end_pos = None
        if JPEG_START_BYTE in frame_bytes:
            start_pos = frame_bytes.index(JPEG_START_BYTE)
        if JPEG_END_BYTE in frame_bytes:
            end_pos = frame_bytes.index(JPEG_END_BYTE)
        
        yield frame_bytes[start_pos:end_pos]

        if start_pos and end_pos:
            break
            
 
site = opener.open(url)
data = ''.join(tuple(get_jpeg(site))) # or next(get_jpeg(site))