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• How to mix 2 audio files into one in ffmpeg-go ?

  18 juin 2024, par princessluna

  Using ffmpeg-go, I am trying to trim and mix (overlay) two audio files together. Currently I have this code :

  


  func AssebmleAudio(music, effect string, userId int) {

    outputFilePath := filepath.Join(utils.GetRoot(), "users", fmt.Sprintf("%d", userId), "audio.mp3")

    musicStream := Trim(ffmpeg_go.Input(music), 60)
    effectStream := Trim(ffmpeg_go.Input(effect), 60)
    Mix(musicStream, effectStream).Output(outputFilePath).Run()

}

// Mixes specified user audio and vinyl audio asset
func Mix(music, effect *ffmpeg_go.Stream) *ffmpeg_go.Stream {
    return ffmpeg_go.Filter(
        []*ffmpeg_go.Stream{
            music,
            effect,
        },
        "amix",
        ffmpeg_go.Args{"inputs=2:duration=longest:dropout_transition=2"},
    )
}


func Trim(music *ffmpeg_go.Stream, duration int) *ffmpeg_go.Stream {
    return music.Trim(ffmpeg_go.KwArgs{"duration": fmt.Sprintf("%d", duration)})
}


  


  However, AssembleAudio while tested yields the following error :

  


  panic: encountered trim with multiple outgoing edges with same upstream label ; a 'split'' filter is probably required

  


  I found solutions for plain ffmpeg, I also found this question, but I have no idea how to do this in go.

  


• FFmpeg command works locally but not on Azure Batch Service

  10 août 2018, par Elgert

  I have a command that generates a video with background and text on it with FFmpeg and would like to render it using Azure Batch Service. Locally my command works :

  ./ffmpeg -f lavfi -i color=c=green:s=854x480:d=7 -vf "[in]drawtext=fontsize=46:fontcolor=White:text=dfdhjf dhjf dhjfh djfh djfh:x=(w-text_w)/2:y=((h-text_h)/2)-48,drawtext=fontsize=46:fontcolor=White:text= djfh djfh djfh djfh djf jdhfdjf hjdfh djfh jd fhdj:x=(w-text_w)/2:y=(h-text_h)/2,drawtext=fontsize=46:fontcolor=White:text=fh:x=(w-text_w)/2:y=((h-text_h)/2)+48[out]" -y StoryA.mp4

  while the one generated programatically with C# and added as a task in batch service retursn failure :

  cmd /c %AZ_BATCH_APP_PACKAGE_ffmpeg#3.4%\ffmpeg-3.4-win64-static\bin\ffmpeg -f lavfi -i color=c=green:s=854x480:d=7 -vf "[in]drawtext=fontsize=46:fontcolor=White:text=dfdhjf dhjf dhjfh djfh djfh:x=(w-text_w)/2:y=((h-text_h)/2)-48,drawtext=fontsize=46:fontcolor=White:text= djfh djfh djfh djfh djf jdhfdjf hjdfh djfh jd fhdj:x=(w-text_w)/2:y=(h-text_h)/2,drawtext=fontsize=46:fontcolor=White:text=fh:x=(w-text_w)/2:y=((h-text_h)/2)+48[out]" -y StoryA.mp4

  The ffmpeg configuration works, and also the Pool as I’ve already tested it with simpler ffmpeg commands which had input and output files. This command doesnt have input file, maybe that is part of the problem ?

  Thank you

• doc/html : fix styling issue with Texinfo 7.0

  8 novembre 2023, par Frank Plowman

  doc/html : fix styling issue with Texinfo 7.0
  Texinfo 7.0 produces quite different HTML to Texinfo 6.8. Without
  
  this change, enumerated option flags (i.e. Possible values of x
  
  are...) render as white text on a white background with Texinfo 7.0
  
  and are unreadable. This change removes a style for the selector
  
  `.table .table` which causes the background to turn white for these
  
  elements. As far as I can tell, it is not actually used anywhere in
  
  files generated by Texinfo 6.8.
  Signed-off-by : Frank Plowman <post@frankplowman.com>
  

  • [DH] doc/bootstrap.min.css