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• Merge Multiple Videos using node fluent ffmpeg

  5 août 2024, par shyamshyre

  requirement is to read all the files in the directory and merge them.
 I am using node fluent-ffmpeg to achieve this.
 First of all reading all the files in the directory appending concatenating the string by adding .input.

  



  var finalresult="E:/ETV/videos/finalresult.mp4"
outputresult : It consists of all the files read in the directory.

/*Javascript*/
MergeVideo(outputresult);
function MergeVideo(outputresult){
console.log("in merge video");
var videostring = "";

for(i=1;i<5;i++)
    {
videostring = videostring+".input("+"'"+outputresult[i]+"'"+")";
}
console.log("Video String"+videostring);
    var proc = ffmpeg()+videostring
    .on('end', function() {
      console.log('files have  succesfully Merged');
        })
    .on('error', function(err) {
      console.log('an error happened: ' + err.message);
    })
    .mergeToFile(finalresult);
}


  



  It gives the following error :

  



  TypeError: Object .input(&#x27;ETV 22-02-2015 1-02-25 AM.mp4&#x27;).input(&#x27;ETV 22-02-2015&#xA;9-33-15 PM.mp4&#x27;).input(&#x27;ETV 22-02-2015 9-32-46 AM.mp4&#x27;).input(&#x27;ETV 22-02-2015 8-&#xA;32-44 AM.mp4&#x27;) has no method &#x27;on&#x27;&#xA;    at MergeVideo (D:\Development\Node\node-fluent-ffmpeg-master\node-fluent-ffm&#xA;peg-master\examples\demo.js:140:6)&#xA;    at Object.<anonymous> (D:\Development\Node\node-fluent-ffmpeg-master\node-fl&#xA;uent-ffmpeg-master\examples\demo.js:129:1)&#xA;    at Module._compile (module.js:456:26)&#xA;</anonymous>

  



  Any help is appreciated.

  


• how to get a mp4 file with g711 audio format [duplicate]

  21 décembre 2017, par xiaoxu

  This question already has an answer here :

  • Could not find tag for codec pcm_alaw in stream #1, codec not currently supported in container when concatenating 2 files using ffmpeg
    
    1 answer
    

  I have a mp4 file with Video: mpeg4 and Audio: aac, now I want to convert it with G711 audio format. I use command line ffmpeg -i output.mp4 -vcodec h264  -acodec pcm_alaw output-G711.mp4, but an error happened like this, so what happend with my ffmpeg. Thanks for any help.

• Fluent-ffmpeg, node. Merge images and Background audio

  12 décembre 2017, par 0sserc

  I’ve been trying to create a video out of images and then add a background sound to the resulting video.

  First of all, and I might be doing this wrong on the first place.
  I create a video for each of the images and then I merge the 3 different videos into the final one.

    let proc = ffmpeg()
  
      .addInput(image.original)
  
      .loop(2)
  
      .fps(1)
  
      .noAudio()
  
      .on('start', function (command) {
  
        console.log('ffmpeg process started:', command)
  
      })
  
      .on('error', function(err) {
  
        console.log('an error happened: ' + err.message);
  
      })
  
      .on('end', function() {
  
        count ++;
  
        if(count == images.length){
  
          videosUrl.forEach(function(videoName){
  
            command = command.addInput(videoName);
  
          });
  
          command.addInput('audio.wav')
  
          command.inputFormat('wav')
  
          command.mergeToFile('merged.mp4')
  
          command.on('start', function (command) {
  
            console.log('ffmpeg process started:', command)
  
          })
  
          command.on('error', function(err) {
  
            console.log('Error ' + err.message);
  
          })
  
          command.on('end', function() {
  
            console.log('Finished!');
  
            future.return(count);
  
          });
  
        }
  
      })
  
      .save(url);

  If I comment out the audio thing I got the merged video correctly, but if I try to add the audio I get the following error.

  Error ffmpeg exited with code 1: Cannot find a matching stream for unlabeled input pad 3 on filter Parsed_concat_0

  Any help would be appreciated !