直播源码程序涉及到很多方面,包括视频采集、编码、传输、解码、播放等,这里给出一个简单的基于Python的直播源码程序示例,使用了opencv
库进行视频采集和处理,以及socket
库进行数据传输。
安装所需库:
pip install opencvpython
创建一个名为live_server.py
的文件,用于发送视频流:
import cv2 import socket import struct import pickle 创建socket对象 server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) host_name = socket.gethostname() host_ip = socket.gethostbyname(host_name) print('HOST IP:', host_ip) port = 9999 socket_address = (host_ip, port) 绑定socket到地址 server_socket.bind(socket_address) 监听连接 server_socket.listen(5) print("LISTENING AT:", socket_address) while True: client_socket, addr = server_socket.accept() print('GOT CONNECTION FROM:', addr) if client_socket: vid = cv2.VideoCapture(0) while(vid.isOpened()): img, frame = vid.read() a = pickle.dumps(frame) message = struct.pack("Q", len(a)) + a client_socket.sendall(message) cv2.imshow('TRANSMITTING VIDEO', frame) key = cv2.waitKey(1) & 0xFF if key == ord('q'): client_socket.close()
创建一个名为live_client.py
的文件,用于接收并显示视频流:
import cv2 import socket import struct import pickle def receive_video(): client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) host_ip = '127.0.0.1' # 服务器IP地址 port = 9999 socket_address = (host_ip, port) client_socket.connect(socket_address) data = b"" payload_size = struct.calcsize("Q") while True: while len(data) < payload_size: packet = client_socket.recv(4 * 1024) if not packet: break data += packet packed_msg_size = data[:payload_size] data = data[payload_size:] msg_size = struct.unpack("Q", packed_msg_size)[0] while len(data) < msg_size: data += client_socket.recv(4 * 1024) frame_data = data[:msg_size] data = data[msg_size:] frame = pickle.loads(frame_data) cv2.imshow("RECEIVING VIDEO", frame) key = cv2.waitKey(1) & 0xFF if key == ord('q'): break client_socket.close() if __name__ == "__main__": receive_video()
运行live_server.py
启动直播服务器,然后运行live_client.py
启动客户端观看直播,注意,这个示例仅适用于本地网络环境,如果要在互联网环境下进行直播,需要使用更复杂的技术,如RTMP协议、CDN等。
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