FFmpeg listen option not available

[RockJamm]

In order to use FFmpeg as a server the listen option needs to be used but the version I get from tce-load -I ffmpeg when I run this (and yes there may be other issues with the script but it's a work in progress):

#!/bin/sh
raspividyuv -fps 40 -o - -md 7 -w 1920 -h 1080 -n -t 0 -awb greyworld | ffmpeg -f flv -listen 1 -i - -c copy rtsp://localhost:9998

complains:

ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.0 (piCore)
  configuration: --prefix=/usr/local --disable-static --enable-gpl --enable-version3 --enable-shared --disable-debug --disable-doc --enable-bzlib --enable-fontconfig --enable-libass --enable-libfreetype --enable-libpulse --enable-libspeex --enable-libtheora --enable-libvorbis --enable-zlib --enable-libmp3lame --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libwebp --enable-libpulse --enable-libspeex --enable-libopus --enable-librsvg --enable-gnutls --enable-sdl2
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Option listen not found.

Could this be because it's missing from the extension?

[Juanito]

It's difficult to tell with ffmpeg as it has changed so much over the years - ffserver has been depreciated for several years and (afaik) not replaced. It is possible that the listen option only worked with earlier versions of ffmpeg...

[RockJamm]

Ah ok. Thanks. I think I may try the GStreamer route. Thanks for your suggestion of Motion. I’ve used it before, I’ll have another look at it. My aim is multiple pi cameras monitoring wildlife from a central much more powerful machine with the highest possible stream quality/reliability. PiCore will be hard to beat from a reliability perspective I imagine.

[RockJamm]

https://ffmpeg.org/ffmpeg-protocols.html

It is still documented for http and rtmp as an experimental server.

[Juanito]

Thanks for your suggestion of Motion. I’ve used it before, I’ll have another look at it. My aim is multiple pi cameras monitoring wildlife from a central much more powerful machine with the highest possible stream quality/reliability. PiCore will be hard to beat from a reliability perspective I imagine.

You could run motion on each RPi and watch them on the more powerful machine using ffmpeg (ffplay) or a browser as I mentioned in the other thread.