Recherche avancée

Sur d’autres sites (8359)

• Tests : Replace jQuery#size() with #jQuery.length

  10 février 2015, par jzaefferer

  Tests : Replace jQuery#size() with #jQuery.length
  Apparently newer jQuery versions are removing size(), since length has
  
  been around fover, use that instead.
  

• mpeg4videodec : only allow a positive length

  22 avril 2015, par Andreas Cadhalpun

  mpeg4videodec : only allow a positive length
  Signed-off-by : Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/mpeg4videodec.c

• How to duplicate an audio file or trim it to a specific length in ffmpeg ?

  21 octobre 2023, par Руслан Лысенко

  I want to combine a video file (with audio) and an audio file together to get one output file.

  


  Most importantly, I need to do the following.

  


  If the length of the video file is longer, then you need to increase the length of the audio file to this length.

  


  If the audio file is longer than the video file, then make the audio file shorter to match the length of the video.

  


  Example :

  


  Video 2 minutes 5 seconds

  


  Audio 1 minute -> duplicated to 2 minutes 5 seconds.

  


  If

  


  Video 1 minute

  


  Audio 2 minutes 5 seconds -> trimmed to 1 minute.

  


  But, I can't even increase the length of the audio file.

  


  export async function overlayAudio(id: number, music: Music) {
  console.log('start')
  const videoPath = path.join(__dirname, `../../../uploads/movie/${id}/result/movie/predfinal.mp4`);
  
  if (music === null) {
    return videoPath.match(/\\uploads(.*)/)[0];
  } else {
    const audioPath = path.join(__dirname, `../../../${music.audio}`);
    const outputVideoPath = path.join(__dirname, `../../../uploads/movie/${id}/result/movie/output.mp4`);
    const matchPath = outputVideoPath.match(/\\uploads(.*)/);
    const cmd = `ffmpeg -i ${videoPath} -i ${audioPath} -filter_complex "[0:a]volume=1[a];[1:a]volume=0.2[b];[b]apad[looped_audio];[a][looped_audio]amix=inputs=2:duration=longest" -c:v copy -c:a aac -strict experimental -shortest ${outputVideoPath}`;

    try {
      await execPromise(cmd);
      console.log('end!')
      return matchPath[0];
    } catch (error) {
      console.error('Error:', error);
      throw error;
    }
  }
}