How to pipe the FFmpeg output to multiple ffplay?

问题

I use the following command to pipe the FFmpeg output to 2 ffplay , but it doesn't work.

ffmpeg -ss 5 -t 10 -i input.avi -force_key_frames 00:00:00.000 -tune zerolatency -s 1920x1080 -r 25 -f mpegts output.ts  -f avi -vcodec copy  -an - | ffplay -i - -f mpeg2video - | ffplay -i -

How can I pipe the FFmpeg output to 2 (or more) ffplay?

I saw this page but it doesn't work for ffplay. (it is for Linux but my OS is windows)

Please help me

Thanks

回答1:

There's some kind of Tee-Object (alias tee) in PowerShell but I'm not sure if it's similar to the one on Linux. You can try:

ffmpeg -re -i [...] -f mpegts - | tee >(ffplay -) | ffplay -

An alternative is to output to a multicast port on the local subnetwork:

ffmpeg -re -i [...] -f mpegts udp://224.0.0.1:10000

You can then connect as many clients as you require on the same address/port:

ffplay udp://224.0.0.1:10000

来源：https://stackoverflow.com/questions/33662523/how-to-pipe-the-ffmpeg-output-to-multiple-ffplay