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• ffmpeg pipe response how to play javascript ?

  30 mars 2017, par 최진영

  Hello i have some question

  i trying app.post and response angular2

  here is my code

  function.js

   var url = 'https://www.youtube.com/watch?v=' + id;
  
   try {
  
         youtubeStream(url).pipe(res)
  
       } catch (exception) {
  
          res.status(500).send(exception)
  
        } 

  response.ts

         this.loading = true 
  
          var headers = new Headers(); 
  
          var query = {
  
                       "videoURL" : this.tracklist[0].videoURL
  
                      }
  
           headers.append('Content-Type', 'application/json');
  
           this.http.post('http://localhost:4100/toMp3',query,{headers: headers}).subscribe((res) => {
  
               console.log(res) <-- plz check picture
  
           });

  console.log(res)

  

  I do not know how to play stream data in _body

• Directory conversion with ffmpeg, filename edit (Windows)

  17 avril 2021, par Aussie iTV

  Being new here, I don't have the reputation to comment directly on the post.

  


  I am trying to use ffmpeg to convert *.mkv files to *.mp4 files in a directory.

  


  The below question had the answer I was looking for, but only one answer related to Windows, but doesn't seem to adjust for the fact that the outputting file will be labelled

  


  `%name%.mkv.mp4`


  


  I've seen elsewhere for single file bat files that you can use

  


  `"!name~0,-4~".mp4`


  


  which removes the 4 characters, but this didn't work in the code provided.

  


  How do I edit the code to remove the .mkv file

  


  `for %i in (*.mp4) do ffmpeg -i "%i" "%~ni.mp3`


  


  Additionally, how is a bat file ran via powershell ? The original answer says shift+left click, this does nothing for me.

  


  Thanks for the help !

  


  Original question post : How do you convert an entire directory with ffmpeg ?

  


• How to add moov atom to mp4 file that is uploaded to flask server

  12 avril 2021, par Drew Parmelee

  I have a flask web server that lets the user upload a video from an HTML form using the following endpoint :

  


  @app.route('/account', methods=['GET', 'POST'])
def account():

    uploadVideoForm = UploadVideoForm()
    if request.method == 'POST' and uploadVideoForm.validate():

        #  add moov atom to uploaded video

        db.put(uploadVideoForm.video.data)
        return redirect(url_for('account'))


  


  I need to prepare this uploaded video for progressive download streaming by adding a moov atom to the beginning of the file. How can this be accomplished ? Could be server-side, or in the users browser with js before they submit the form.

  


  I was able to add a moov atom to a .mp4 using :

  


  ffmpeg -i file.mp4 -c copy -map 0 -movflags +faststart out.mp4


  


  in the command line, but I'm not sure how this can be done on my server.

  


  I really appreciate any help,