寻求基于FFmpeg的极简SRT流媒体收发实现方案

Absolutely—you don’t need overcomplicated configurations to get SRT up and running with FFmpeg, just like your go-to UDP example! SRT does have a tiny bit more context than UDP (since it’s a connection-oriented protocol), but the basic commands are nearly identical in simplicity.

Prerequisite #

First, confirm your FFmpeg build includes SRT support. Run this command and look for srt in the output:

ffmpeg -protocols

If it’s missing, you’ll need a version compiled with --enable-libsrt (most official prebuilt FFmpeg binaries include this by default now).

Sender Command (Caller Mode) #

This sends your video stream directly to the receiver’s IP and port, mirroring your UDP workflow:

ffmpeg -i myfile.mp4 -vcodec libx264 -crf 12 -f mpegts srt://192.168.1.5:1234?mode=caller

Receiver Command (Listener Mode) #

Start this first to listen for the incoming SRT stream:

ffplay srt://0.0.0.0:1234?mode=listener

Even Simpler Auto-Mode Alternative #

If you don’t want to specify mode=caller/listener, FFmpeg can auto-negotiate the roles for you. Just start the receiver first:

ffplay srt://0.0.0.0:1234

Then run the sender command without the mode flag:

ffmpeg -i myfile.mp4 -vcodec libx264 -crf 12 -f mpegts srt://192.168.1.5:1234

FFmpeg will automatically set the receiver as the listener and the sender as the caller.

Quick Tips #

• Why the mode? SRT uses a client-server model, so one side listens for connections (listener) and the other initiates the connection (caller). Auto mode handles this automatically if you start the receiver first.
• This setup uses SRT’s default low-latency, reliable settings—great for most simple streaming use cases.
• To save the stream to a file instead of playing it, replace the ffplay command with:

  ffmpeg -i srt://0.0.0.0:1234?mode=listener -c copy output.mp4
  

That’s all there is to it—no config files, no extra hoops, just straightforward commands like your UDP example!

内容的提问来源于stack exchange，提问作者user1767754