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• FFmpeg Node.js live web streaming

  12 mars 2018, par Dmitry

  I’m trying to create some kind of proxy server to get IP cameras feeds and stream it over http using FFmpeg and hapi.js
  The main thing is that must exist outside http-server routes regardless of being watched. So I create feed like that

  let ffmpeg = require('fluent-ffmpeg')
  
  
  
  let ffproc = ffmpeg()
  
      .input('some_link')
  
      .format('flv')
  
      .videoCodec('copy')
  
      .noAudio()
  
  
  
  
  
    let feed = ffproc.pipe({end: true})

  and http-server

  const Hapi = require('hapi')
  
  
  
  const server = new Hapi.Server({
  
    host: 'localhost',
  
    port: 3000
  
  })
  
  
  
  server.route({
  
    method: 'GET',
  
    path: '/live',
  
    handler: function (request, h) {
  
        return feed
  
    }
  
  })
  
  
  
  server.start((err) => {   
  
    console.log(`Server running at: ${server.info.uri}`)
  
  })

  I’ve got my feed using vlc or ffplay but after I disconnect ffproc ends as well so I cannot reconnect later.
  I’ve tryed to clone or pipe stream but it doesn’t help, process still exists but ffplay shows error ’Invalid data found when processing input’ instead of feed. koa server shows same behaviour, express and fastify I did not managed to work.

  What am I doing wrong ?

• Run 2 exec command in for loop with time interval of 30 seconds using TCL and FFMPEG

  29 novembre 2017, par M. D. P

  i want to Run 2 exec command in for loop with time interval of 30 seconds using TCL and FFMPEG

  my exec command for image is :

  exec ffmpeg -f dshow -benchmark -i video="Integrated Webcam" -s 1280x720 c:/test/sample_image%d.jpg

  my exec command for video is :

  exec ffmpeg -f dshow -benchmark -i video="Integrated Webcam" -s 1280x720 c:/test/sample_video%d.avi

  i want my code to be like this :

  proc a {} { 
  
  
  
  set a 1
  
  
  
  while {$a < 10} {
  
  
  
  after 3000
  
  
  
  exec ffmpeg -f dshow -benchmark -i "video=Integrated Webcam" -s 1280x720 c:/test/sample_image.avi
  
  
  
  after 3000
  
  
  
  exec ffmpeg -f dshow -t 00:00:30 -benchmark -i "video=Integrated Webcam" -s 1280x720 c:/test/sample_video.avi
  
  
  
  incr a
  
  
  
  }
  
  
  
  }
  
  a

  problem here is, after completion of first exec command, it stops its execution. that is it captures the image and stops its execution.

  I also want that this process of capturing image and video should work in loop (while or foreach).

  i have my present working code which execute only one exec command, that to only one. so i want this two exec command to run after one another in loop.

  error report for above program :

  % source c:/other/a/d.tcl
  
  
  
  ffmpeg version N-89212-ga60b2425c3 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.2.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
  
    libavutil      56.  2.100 / 56.  2.100
  
    libavcodec     58.  3.105 / 58.  3.105
  
    libavformat    58.  2.102 / 58.  2.102
  
    libavdevice    58.  0.100 / 58.  0.100
  
    libavfilter     7.  2.102 /  7.  2.102
  
    libswscale      5.  0.101 /  5.  0.101
  
    libswresample   3.  0.101 /  3.  0.101
  
    libpostproc    55.  0.100 / 55.  0.100
  
  Input #0, dshow, from 'video=Logitech HD Webcam C525':
  
    Duration: N/A, start: 90055.057000, bitrate: N/A
  
      Stream #0:0: Video: rawvideo, bgr24, 1280x720, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
  
  File 'c:/test/sample_20171128_111245.jpg' already exists. Overwrite ? [y/N] [dshow @ 052d4ac0] real-time buffer [Logitech HD Webcam C525] [video input] too full or near too full (181% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
      Last message repeated 886 times
  
  Not overwriting - exiting
  
  bench: maxrss=50856kB
  
  [dshow @ 052d4ac0] real-time buffer [Logitech HD Webcam C525] [video input] too full or near too full (181% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
      Last message repeated 1 times
  
  %

  please provide me the code as answer which will work for above problem.

• Nginx rtmp exec_push

  26 décembre 2017, par Akim Benchiha

  I have 2 nginx instances and 1 node server with each running on separate VM.
  The first instance get the rtmp stream.
  The second instance is the HLS app.
  The node server execute the ffmpeg script and send the combined stream to instance 2.

  What I want is to execute ffmpeg with exec_push from instance 1 on the node server. I tried curl but it’s not enough because he just receives the response.

  Nginx config :

  rtmp {
  
    server {
  
       listen 1935;
  
       ping 30s;
  
       notify_method get;
  
  
  
          application ingest {
  
               live on;
  
               exec_kill_signal term;
  
               idle_streams off;
  
               exec_push curl -s IP:3000/$name ;
  
               #exec_push /usr/local/bin/ffmpeg_push.sh $name ;
  
             }
  
    }
  
  }

  NodeJS

  app.get('/:name', (req, res) =>{
  
  
  
          const testscript = exec('sh /usr/local/bin/ffmpeg_push.sh '+ req.params.name);
  
          testscript.stdout.on('data', function(data){
  
                   console.log('\x1b[32m', data);
  
                  // sendBackInfo();
  
          });
  
  
  
          testscript.stderr.on('data', function(data){
  
                  console.log("\x1b[31m", data);
  
                  // triggerErrorStuff();
  
          });
  
  
  
          testscript.on('close', function (code){
  
                  console.log("\x1b[31m", {data: {status: 'error', code: code}});
  
          });
  
  })
  
  
  
  app.listen(3000, '0.0.0.0', () => console.log("\x1b[32m", 'ok on port 3000'))

  Do you have any hint or idea please ?
  Thank you