Server-py/sri-pysdk/xpip/data_by_numpy.py

# update: 2022-6-1-10
import numpy as np


def to_array(data):
    return np.array(data)


def to_bytes(array):
    return array.tobytes()


def bytes_to_array(_bytes):
    return np.frombuffer(_bytes, dtype=np.uint8)


def bytes_to_array_v2(_bytes):
    return np.asarray(bytearray(_bytes), dtype='uint8')


def string_to_array(string):
    return np.fromstring(string, dtype=np.uint8)


if __name__ == '__main__':
    import cv2
    import pickle

    cap = cv2.VideoCapture('rtsp://admin:DEVdev123@192.168.30.235:554/h264/ch1/sub/av_stream')
    ret, frame = cap.read()
    print(frame.shape)
    print(type(frame))

    _bytes = pickle.dumps(frame)
    print(type(_bytes))

    _array = pickle.loads(_bytes)
    print(type(_array))

    print(np.array_equal(frame, _array))