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• node-cmd running ffmpeg commands fails

  28 décembre 2017, par Ricky

  cmd package to run terminal commands so I can use ffmpeg installed on my machine but I am running into syntax trouble. Here is my command

  let convert = () => {cmd.run('ffmpeg -re -i 
  
  "https://mnmedias.api.telequebec.tv/m3u8/29880.m3u8" -acodec libmp3lame -ar 
  
  44100 -b:a 128k -pix_fmt yuv420p -profile:v baseline -s 426x240 -bufsize 
  
  6000k -vb 400k -maxrate 1500k -deinterlace -vcodec libx264 -preset veryfast 
  
  -g 30 -r 30 drawtext="fontfile=/path/to/font.ttf: \ text='Stack Overflow': 
  
  fontcolor=white: fontsize=24: box=1: boxcolor=black@0.5: \ boxborderw=5: x=
  
  (w-text_w)/2: y=(h-text_h)/2" -f flv "rtmp://ingest-us-
  
  east.a.switchboard.zone/live/moo-7hup2-mqxsa-b6kmd-gj2gq"');}

  I am getting "SyntaxError : missing ) after argument list", I tried changing the single quotes into double quotes but ffmpeg doesn’t like that apparently

• How to return width and height of a video/image using ffprobe & batch

  7 octobre 2023, par user780756

  I need to get the width and height of an image file using ffprobe and need to store it in variables using batch (Windows) so I can later use those values.

  



  I tried to do this,

  



  @echo off
for /f "tokens=1-2" %%i in ('ffprobe -v error -of flat=s=_ -select_streams v:0 -show_entries stream=width,height %1') do set W=%%i & set H=%%j
echo %W%
echo %H%


  



  But fails to execute with

  



  Argument '_' provided as input filename, but 's' was already specified.


  



  p.s. I also tried imagemagick identify in a similar way, but it seems that identify has a bug when returning height for GIF files

  


• How to import fluent-ffmpeg in aws lamdba ?

  3 octobre 2019, par Fook

  I’m trying to use fluent-ffmpeg in AWS Lambda, but cannot get it setup correctly. At the top of my index.js :

  import ffmpeg from "fluent-ffmpeg";

  But it is always undefined.

  ffmpeg === undefined.

  I’m using Serverless and have ffmpeg included as a layer.

  serverless.yaml

  functions:
  
    createGifFromVideo:
  
      handler: src/services/createGifFromVideo/index.handler
  
      layers:
  
        - { Ref: FfmpegLambdaLayer }
  
      events:
  
        - sns: arn:aws:sns:us-east-1:${self:custom.accountId}:NewVideoPostContentTopic-${self:provider.stage}
  
  
  
  layers:
  
    ffmpeg:
  
      path: src/layers

  package.json

  {
  
    "name": "createGifFromVideo",
  
    "version": "1.0.0",
  
    "main": "index.js",
  
    "license": "MIT",
  
    "private": true,
  
    "dependencies": {
  
      "fluent-ffmpeg": "^2.1.2"
  
    }
  
  }

  The uploaded lambda seems to be constructed correctly from what I can tell. Webpack builds the file with fluent-ffmpeg merged in and it is linked to the ffmpeg layer.

  I can load other packages. It’s just fluent-ffmpeg that comes back undefined.

  From the docs it mentions passing FFMPEG_PATH and FFPROBE_PATH as environment variables. Are these necessary with a layer ?

  I would be grateful to see a configuration that works.