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• Using videoshow (npm module) with ffmpeg to conver audio+image into video

  31 mai 2017, par delesslin

  I’m trying to use the videoshow utility to combine a short audio clip with an image on my ubuntu system. I installed ffmpeg globally while in the root directory using :

  sudo apt-get install ffmpeg

  I then installed videoshow inside the project folder using :

  sudo npm install videoshow

  The project folder contains 3 files plus the node_modules folder : an image (wolf.jpg), an audio clip (wolf.mp3), and a js file (audio.js). I derived audio.js from an example script on the videoshow github page. Here is my script :

      var videoshow = require('videoshow')
  
  
  
  var images = [
  
    "wolf.jpg"
  
  ]
  
  
  
  var videoOptions = {
  
    fps: 25,
  
    loop: 5, // seconds
  
    transition: true,
  
    transitionDuration: 1, // seconds
  
    videoBitrate: 1024,
  
    videoCodec: 'libx264',
  
    size: '640x?',
  
    audioBitrate: '128k',
  
    audioChannels: 2,
  
    format: 'mp4',
  
    pixelFormat: 'yuv420p'
  
  }
  
  
  
  videoshow(images, videoOptions)
  
    .audio('wolf.mp3')
  
    .save('wolf.mp4')
  
    .on('start', function (command) {
  
      console.log('ffmpeg process started:', command)
  
    })
  
    .on('error', function (err, stdout, stderr) {
  
      console.error('Error:', err)
  
      console.error('ffmpeg stderr:', stderr)
  
    })
  
    .on('end', function (output) {
  
      console.error('Video created in:', output)
  
    })

  In the terminal, inside the project folder I then call :

  node audio.js

  The terminal is silent for a moment followed by :

      ffmpeg process started: ffmpeg -i /tmp/videoshow-db63732f-7376-4663-a7bc-c061091e579a -y -filter_complex concat=n=1:v=1:a=0 wolf.mp4
  
  ffmpeg process started: ffmpeg -i /tmp/videoshow-1f8851b4-c297-4070-a249-3624970dbb85 -i wolf.mp3 -y -b:a 128k -ac 2 -r 25 -b:v 1024k -vcodec libx264 -filter:v scale=w=640:h=trunc(ow/a/2)*2 -f mp4 -map 0:0 -map 1:0 -t 5 -af afade=t=in:ss=0:st=0:d=3 -af afade=t=out:st=2:d=3 -pix_fmt yuv420p wolf.mp4
  
  Error: [Error: ffmpeg exited with code 1: ]
  
  ffmpeg stderr: undefined

  I’m not sure why this isn’t working, but any/all assistance would be deeply appreciated...

  Hawu’h (thanks),
  Roo

• working ffmpeg command fails when using in nginx with rtmp module

  7 juin 2017, par Rafael Linux User

  I have a tested code I did in a "bash" file. It works perfect on shell. I change only params to get it to work with nginx rtmp module, but ffmpeg says always and understandable error. This is the code :

  exec_push ffmpeg -re -y -i rtmp://localhost:1935/live/$name  \
  
                              -c:v libx264 -c:a aac  \
  
                              -g 24 -keyint_min 24   -preset veryfast -tune zerolatency -movflags +faststart -vsync passthrough  \
  
                              -filter_complex '[0:v]format=pix_fmts=yuv420p,split=3[in1][in2][in3];[in1]scale=320:-2[320x];[in2]scale=640:-2[HQ640x];[in3]scale=1280:-2[HD1280x];[0:a]aresample=44100[audio]'  \
  
                              -map '[320x]'       -profile:v baseline -level 3.0 -crf 31 -maxrate 170k -bufsize 170k      -f mp4 rtmp://localhost:1935/rtmp_hls/$name_320x  \
  
                              -map '[HQ640x]'     -profile:v baseline -level 3.1 -crf 25 -maxrate 1000k -bufsize 1000k    -f mp4 rtmp://localhost:1935/rtmp_hls/$name_HQ640x  \
  
                              -map '[HD1280x]'    -profile:v main -level 3.1 -crf 19 -maxrate 4000k -bufsize 4000k        -f mp4 rtmp://localhost:1935/rtmp_hls/$name_HD1280x  \
  
                              -map '[audio]'      -b 128k                                                                 -f mp4 rtmp://localhost:1935/rtmp_hls/$name_audio 2>>/var/www/html/ffmpeg-live-output-$name.log;

  And this is the error launched by mmpeg

  ffmpeg version 3.2.4-1~bpo8+1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.9.2 (Debian 4.9.2-10)
  
    configuration: --prefix=/usr --extra-version='1~bpo8+1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --disable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      55. 34.101 / 55. 34.101
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.101 / 57. 56.101
  
    libavdevice    57.  1.100 / 57.  1.100
  
    libavfilter     6. 65.100 /  6. 65.100
  
    libavresample   3.  1.  0 /  3.  1.  0
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
    libpostproc    54.  1.100 / 54.  1.100
  
  [flv @ 0x55e430547740] video stream discovered after head already parsed
  
  [flv @ 0x55e430547740] audio stream discovered after head already parsed
  
  Input #0, flv, from 'rtmp://localhost:1935/live/directo':
  
    Metadata:
  
      Server          : NGINX RTMP (github.com/sergey-dryabzhinsky/nginx-rtmp-module)
  
      displayWidth    : 1280
  
      displayHeight   : 720
  
      fps             : 24
  
      profile         : 
  
      level           : 
  
    Duration: 00:00:00.00, start: 26.023000, bitrate: N/A
  
      Stream #0:0: Video: h264 (Constrained Baseline), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 24.42 fps, 24 tbr, 1k tbn, 48 tbc
  
      Stream #0:1: Audio: aac (LC), 44100 Hz, mono, fltp
  
  [NULL @ 0x55e4305e0b40] Unable to find a suitable output format for '
  
  '
  
  
  
  : Invalid argument

  Does anyone could help me ?

  Thank you

• Using Node.js module fluent-ffmpeg to convert video but my files end up corrupt

  28 juin 2017, par El Guapo

  i am writing a node based media encoding tool and have found a few good node packages that will help me to do this, but the output files are either totally corrupt or it only encodes half the video.

  The main node package i am using is fluent-ffmpeg, and i am trying it with the following code :

  var ffmpeg = require('fluent-ffmpeg');
  
  
  
  var proc = new ffmpeg({ source: 'uploads/robocop-tlr1_h480p.mov', nolog: false})
  
    .withVideoCodec('libx264')
  
    .withVideoBitrate(800)
  
    .withAudioCodec('libvo_aacenc')
  
    .withAudioBitrate('128k')
  
    .withAudioChannels(2)
  
    .toFormat('mp4')
  
    .saveToFile('output/robocop.mp4',
  
      function(retcode, error){
  
          console.log('file has been converted succesfully');
  
  });

  There is not a problem with the source video as i encoded it just fine using FFmpeg normally with the following comand line string (i run it from a batch file) :

  "c:\ffmpeg\bin\ffmpeg.exe" -i %1 -acodec libvo_aacenc -b:a 128k -ac 2 -vcodec libx264 -b:v 800k -f mp4 "../output/robocop2.mp4"

  Any ideas what i am doing wrong here ?