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• Running FFMPEG from Shell Script /bin/sh

  19 octobre 2015, par Chris James Champeau

  I am trying to setup a Shell Script to work within an automator watch folder...

  Everything works with the exception of the Run Shell Scrip portion...

  Essentially when a file shows up in the watch folder, it runs the shell scrip which calls FFMPEG and then will move the file to an archive folder for safe keeping. However right now automator is telling me everything worked but now file is being created.

  I have the Shell set to /bin/sh and Pass input set to as arguments

  Here is my script :

  for f in "$@"
  
  do
  
  name=$(basename "$f")
  
  dir=$(dirname "$f")
  
  ffmpeg -i "$f" -b 250k -strict experimental -deinterlace -vcodec h264 -acodec aac "$dir/mp4/${name%.*}.mp4"
  
  echo "$dir/mp4/${name%.*}.mp4"
  
  done

  it does echo the correct filename, but does not actually run ffmpeg

  I have tried adding -exec before it like I have seen in some scripts but still nothing...

• exit status 127 when running ffmpeg from golang

  18 mai 2023, par Eran

  Hi I am using the following docker image :

  


  FROM golang:alpine3.18


  


  With ffmpeg : (probably here I am missing something)

  


  RUN apk add --no-cache ffmpeg


  


  However when trying to execute the following :

  


  cmd := "ffmpeg -i Untitled.mp4 -vf \"fps=5,scale=320:-1:flags=lanczos\" -c:v pam -f image2pipe - | convert -delay 5 - -loop 0 -layers optimize test.gif"
_, err := exec.Command("bash", "-c", cmd).Output()
if err != nil {
    fmt.Println(fmt.Sprintf("Failed to execute command: %s", err))
}


  


  I get this error :

  


    Failed to execute command: exit status 127


  


• Running FFmpeg from AWS

  11 mai 2019, par Jay

  This code works perfectly from my local machine.

  import subprocess
  
  
  
  p = subprocess.call('ffmpeg -r 1 -loop 1 -i "ep1.png" -i "ep1.mp3" -acodec copy -r 1 -shortest -vf scale=1280:720 ep1.flv',shell=True)

  I would like to run it from AWS

  Lambda code

  import boto3
  
  
  
  import subprocess
  
  
  
  s3 = boto3.client('s3')
  
  
  
  
  
  def lambda_handler(event, context):
  
  
  
      ep1PNG = s3.get_object(Bucket='my-buc',Key='ep1.PNG')
  
      ep1MP3 = s3.get_object(Bucket='my-buc',Key='ep1.mp3')
  
  
  
      p = subprocess.call(
  
      '/opt/ffmpeg/ffmpeg -r 1 -loop 1 -i ep1PNG -i ep1MP3 -acodec copy -r 1 -shortest -vf scale=1280:720 /tmp/ep1.flv', shell=True)
  
  
  
  
  
      # TODO implement
  
      return {
  
          'statusCode': 200,
  
  
  
      }

  Questions

  Are these correct inside subprocess.call() ?

  /opt/ffmpeg/ffmpeg  #<-----Is this correct ?
  
  ep1PNG           #<-----Is this correct ?
  
  ep1MP3          #<-----Is this correct ?
  
  /tmp/ep1.flv   #<----- Not Sending Output to S3 Bucket 

  Please comment if I’m heading in the right direction been trying this for about a week now

  ffmpeg is uploaded as a layer