I want to use zmq to receive messages from a web page

[djgaby7]

I want to use zmq to receive messages from a web page in ffplayout, I tried with chatgpt but I can't find the address to send the messages to, can you leave me a zmq command to which messages are sent with the position?

I tried to use this address, the script connects to the server but no messages appear on the screen

zmq=b=tcp\\://'127.0.0.1\:5551',drawtext@dyntext=text='':fontfile='/var/lib/ffplayout/tv-media/00-assets/DejaVuSans.ttf'

[JunioCalu]

I want to use zmq to receive messages from a web page in ffplayout, I tried with chatgpt but I can't find the address to send the messages to, can you leave me a zmq command to which messages are sent with the position?

It’s possible to do this through the ffplayout API itself. The procedure is:

1. Obtain the authentication token to use the API:

   Command:

   curl -X POST http://127.0.0.1:8787/auth/login/ -H "Content-Type: application/json" -d '{ "username": "admin", "password": "admin"}'

   Expected output:

   {"message":"login correct!","user":{"id":1,"mail":"contact@example.com","username":"admin","role_id":1,"channel_ids":[1],"token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwiY2hhbm5lbHMiOlsxXSwidXNlcm5hbWUiOiJhZG1pbiIsInJvbGUiOiJHbG9iYWxBZG1pbiIsImV4cCI6MTczNjgyNTc1NX0.KjAXhWhr4FpaYpJphVJu07CDV0XLr9HhhgWQ5ymWYJM"}}

   Token obtained:

   eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwiY2hhbm5lbHMiOlsxXSwidXNlcm5hbWUiOiJhZG1pbiIsInJvbGUiOiJHbG9iYWxBZG1pbiIsImV4cCI6MTczNjgyNTc1NX0.KjAXhWhr4FpaYpJphVJu07CDV0XLr9HhhgWQ5ymWYJM

2. Use the obtained token to send a message:

   Command:

   curl -X POST http://127.0.0.1:8787/api/control/1/text/ -H 'Content-Type: application/json' -H 'Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwiY2hhbm5lbHMiOlsxXSwidXNlcm5hbWUiOiJhZG1pbiIsInJvbGUiOiJHbG9iYWxBZG1pbiIsImV4cCI6MTczNjgyNTc1NX0.KjAXhWhr4FpaYpJphVJu07CDV0XLr9HhhgWQ5ymWYJM' -d '{"text": "Hello from ffplayout", "x": "(w-text_w)/2", "y": "(h-text_h)/2", "fontsize": "24", "line_spacing": "4", "fontcolor": "#ffffff", "box": "1", "boxcolor": "#000000", "boxborderw": "4", "alpha": "1.0"}'

   Expected output:

   {"message":"0 Success"}

Note: The playout must be “on” (i.e., actively playing a video) at the moment the API is called.
More details can be found in the API documentation.

[djgaby7]

[root@localhost /]# ffmpeg -version
ffmpeg version N-118253-g9fe66c7fcb Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 11 (GCC)
configuration: --prefix=/usr/local --pkg-config-flags=--static --extra-cflags=-I/usr/include --extra-ldflags=-L/usr/lib --enable-version3 --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-ladspa --enable-libdav1d --enable-libass --enable-libbluray --enable-libjxl --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libvorbis --enable-libvidstab --enable-libvmaf --enable-version3 --enable-libvpx --enable-libx264 --enable-libxvid --enable-libxml2 --enable-lv2 --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-lto --enable-libmfx --enable-runtime-cpudetect --enable-libzmq
libavutil      59. 54.101 / 59. 54.101
libavcodec     61. 31.100 / 61. 31.100
libavformat    61.  9.104 / 61.  9.104
libavdevice    61.  4.100 / 61.  4.100
libavfilter    10.  6.101 / 10.  6.101
libswscale      8. 13.100 /  8. 13.100
libswresample   5.  4.100 /  5.  4.100
libpostproc    58.  4.100 / 58.  4.100
[root@localhost /]# 

these are the installed filters maybe I missed something

[JunioCalu]

Have you tried using this FFmpeg build script from @jb-alvarado?

[jb-alvarado]

You should check if your version has the drawtext filter. It could be that your build misses harfbuzz to use drawtext.

[djgaby7]

I was unable to install all the filters, does the docker version have all the filters enabled, especially zmq?

[jb-alvarado]

For listing the filters you need another command.