公网tcp转流

之前做过几次公网推流的尝试, 今天试了UDP推到公网, 再用TCP从公网拉下来, 发现不行, 就直接改用TCP转TCP了.
中间中转使用的python脚本, 感谢GPT提供技术支持:

import socket
import threadingdef tcp_receiver(port, forward_queue):"""接收TCP数据并将其放入队列"""receiver_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)receiver_socket.bind(('', port))receiver_socket.listen(1)print(f"TCP receiver ready on port {port}")while True:client_socket, addr = receiver_socket.accept()print(f"Connected by {addr} for receiving data on port {port}")try:while True:data = client_socket.recv(1024)if not data:breakforward_queue.put(data)finally:client_socket.close()print(f"Receiver connection closed by {addr}")def tcp_forwarder(port, forward_queue):"""从队列中获取数据并转发到另一个TCP连接"""forwarder_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)forwarder_socket.bind(('', port))forwarder_socket.listen(1)print(f"TCP forwarder ready on port {port}")while True:client_socket, addr = forwarder_socket.accept()print(f"Connected by {addr} for forwarding data on port {port}")try:while True:data = forward_queue.get()  # This blocks until data is availabletry:client_socket.sendall(data)except socket.error:print("Failed to send data, discarding packet")break  # End connection if sending failsfinally:client_socket.close()print(f"Forwarder connection closed by {addr}")if __name__ == '__main__':from queue import Queuedata_queue = Queue()receiver_thread = threading.Thread(target=tcp_receiver, args=(9998, data_queue))forwarder_thread = threading.Thread(target=tcp_forwarder, args=(9997, data_queue))receiver_thread.start()forwarder_thread.start()

就是从9998端口转发数据到9997端口, 下一步就用nginx做这个好了. 不用脚本了.

rtsp的部分, 源码在下面:

https://github.com/MontaukLaw/1126_rtsp

基于官方的vi_venc_rtsp sample code, 将rtsp的部分改成直接往公网推.

播放流依然是老办法:

ffplay -i tcp://wan_ip:9997

因为我不需要缓存, 所以之前用ZLMedia转的方法, 一直会导致延迟慢慢变大, 可能是缓存的关系.
目前, 1126使用的WiFi连接的Internet, 延迟大约在1秒左右

带宽2Mbps

每秒数据约 250KB:

下一步就是使用4G网络推推看了…