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• Wanted : ffmpeg expert to help me with an encoding problem (paid job)

  22 août 2022, par Michael Heuberger

  Good day,

  


  I'm the developer of www.videomail.io and experience issues with audio. It's a heavily used, free service to enable Deaf people to email in Sign Language. Runs on ffmpeg (under node-fluent-ffmpeg) and JavaScript (Node.js).

  


  Since I am Deaf myself, I am unable to repair some audio-related issues while muxing video with audio together on server side via ffmpeg. Reason for adding audio is to expand the target audience.

  


  That said, I'm searching for someone to help me with this. It's a paid job !

  


  Requirements :

  


  

  • Must know ffmpeg very well, especially on how to encode audio (WAV) and video (MP4) together without any audio delays.

  


  • Knowing JavaScript would be a massive plus for writing code

  


  • Has time in the following weeks, I guess about 10 hours or so.

  


  


  If you are keen, ping me please. My page is www.binarykitchen.com - thanks !

  


• Able to get HLS to play on VLC viewer but not on browser

  6 mai 2022, par Tamothee

  so i have been trying to get ipcamera to connect to a react app and show live video. i found and followed this tutorial https://www.youtube.com/watch?v=-a5MAaEaizU&t=185s .

  


  i am able to get vlc viewer to run the hls server link and display what the camera sees. however when i plug the link into my code or a browser hls viewer like https://hls-js.netlify.app/demo/ , the m3u8 link does not play. there is no error and when i inspect the network, i do receive the m3u8 and .ts links.
this is what i see on the network portion

  


  ffmpeg -i rtsp://admin:Password1234@192.168.1.64:554/Streaming/Channels/101 -fflags flush_packets -max_delay 2 -flags -global_header -hls_time 2 -hls_list_size 3 -vcodec copy -y ./index.m3u8


  


  this is the ffmpeg command that i ran to convert my rtsp output to hls.

  


  var http = require('http');
var fs = require('fs');

const port = 1234

http.createServer(function (request, response) {
console.log('request starting...');

var filePath = '.' + request.url;

fs.readFile(filePath, function(error, content) {
    response.writeHead(200, { 'Access-Control-Allow-Origin': '*' });
    if (error) {
        if(error.code == 'ENOENT'){
            fs.readFile('./404.html', function(error, content) {
                response.end(content, 'utf-8');
            });
        }
        else {
            response.writeHead(500);
            response.end('Sorry, check with the site admin for error: '+error.code+' ..\n');
            response.end(); 
        }
    }
    else {
        response.end(content, 'utf-8');
    }
});

}).listen(port);
console.log(`Server running at http://127.0.0.1:${port}/`);


  


  this is the code for the hls server that receives the request and sends the user the m3u8 and ts files.

  


   


  


  and i'm trying to play the link like this using react-hls-player

  


  hope this is not a stupid question as i'm a beginner and hope that someone could help me with this problem.

  


• Split ffmpeg audio and video to different pipe outputs

  8 septembre 2021, par Bryan Horna

  I have a conference application using Jitsi Meet, and using their Jibri tool for streaming to an RTMP source.
  
But the delay is intolerable as of now so while looking out for alternatives I found that I can use WebRTC.
  
It turns out that most of the tools I've found (Pion, and others) expect me to send separate video/audio streams.
  
And Jibri uses an ffmpeg command which outputs both streams joined, so I want to split them.

  


  Here's the command in question :

  


  ffmpeg \
-y -v info \
-f x11grab \
-draw_mouse 0 \
-r 30 \
-s 1920x1080 \
-thread_queue_size 4096 \
-i :0.0+0,0 \
-f alsa \
-thread_queue_size 4096 \
-i plug:bsnoop \
-acodec aac -strict -2 -ar 44100 -b:a 128k \
-af aresample=async=1 \
-c:v libx264 -preset veryfast \
-maxrate 2976k -bufsize 5952k \
-pix_fmt yuv420p -r 30 \
-crf 25 \
-g 60 -tune zerolatency \
-f flv rtmps://redacted.info


  


  I'd want to have it output to at least two outputs (one for video and other for audio), using pipe:x or rtp://.
  
It'll be better if multiple output codecs are possible (audio opus/aac, video h264/vp8), so it supports most of WebRTC.

  


  I've read the documentation at ffmpeg website but still can't get to a command that does this job in just one command.
  
I know I could use -an and -vn with two different ffmpeg commands but that would consume more CPU I guess.

  


  Thanks in advance for your great help !