很多文章介绍使用ffmpeg推送和拉流，执行推流命令：
D:\software\ffmpeg-7.0.1-full_build\bin\ffmpeg.exe -re -stream_loop -1 -i "D:\Video\汪汪队立大功\S07\001.mp4" -vcodec h264 -acodec aac -f flv rtmp://127.0.0.1/live/test110
经常遗漏安装rtsp-simple-server的步骤，会出现如下报错：
[tcp @ 00000256cd34b3c0] Connection to tcp://127.0.0.1:1935?tcp_nodelay=0 failed: Error number -138 occurred
[rtmp @ 00000256cd3cd340] Cannot open connection tcp://127.0.0.1:1935?tcp_nodelay=0
找到一个比较完整的过程的介绍文章：
补齐了启动rtsp-server过程，执行mediamtx.exe 作为 rtsp-simple-server，遇到如下问题：
1. 遇到报错
D:\software\mediamtx_v1.8.3_windows_amd64>mediamtx.exe
2024/06/20 11:35:41 INF MediaMTX v1.8.3
2024/06/20 11:35:41 INF configuration loaded from D:\software\mediamtx_v1.8.3_windows_amd64\mediamtx.yml
2024/06/20 11:35:41 INF [RTSP] listener opened on :8554 (TCP), :8000 (UDP/RTP), :8001 (UDP/RTCP)
2024/06/20 11:35:41 ERR listen tcp :1935: bind: An attempt was made to access a socket in a way forbidden by its access permissions.
2024/06/20 11:35:41 INF [RTSP] listener is closing
2024/06/20 11:35:41 INF waiting for running hooks
解决方法：
启动windows power shell后，执行：
sc stop winnat
sc start winnat
2. 抓不到rtsp包
原因1：
route add 10.11.33.118 mask 255.255.255.255 10.11.33.254
原因2：
换一个客户端播放rtsp，尽量不要和server共用同一个机器。
3. 使用wirshark抓包，过滤条件： rtsp or rtcp or rtp or rtps
基于udp抓包文件请到文章顶部
4. tcpdump命令详解：
5. 从rtp包里提取图像
6. H264标准
原文链接：https://blog.csdn.net/wangjunfeng0000/article/details/139830480?ops_request_misc=%257B%2522request%255Fid%2522%253A%25221f1a46047892401988b195bddcb2f453%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=1f1a46047892401988b195bddcb2f453&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_ecpm_v1~times_rank-2-139830480-null-null.nonecase&utm_term=%E7%BE%A4%E6%99%96%E6%90%AD%E5%BB%BA
