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• ffmpeg javacv audio - integrate audio into video javacv

  16 juillet 2014, par Cyril Lequeux

  I’ve looked for this issue since a while but I didn’t find out any solution...
  I want to create a video from pictures with javacv (great, it works). But now I want to put in a sync way audio into my video. I heard I had to make a byte array with the sound data and then record() according to the audiobitrate/8 = audiobyterate but i didn’t find a simple sample...I’m not the first asking this question but all the same questions are still unanswered

      IplImage Image = cvLoadImage("data/photo.jpg");
  
      FrameRecorder recorder = FFmpegFrameRecorder.createDefault("out.avi", 1920, 1080);
  
      recorder.setVideoCodec(AV_CODEC_ID_MPEG4);
  
      recorder.setFrameRate(30);
  
      recorder.setFormat("avi");
  
      recorder.start();
  
          for(int s=0; s<10; s++){
  
              for(int i=0; i<30; i++){
  
                  recorder.record(Image);
  
  //Here I want to record my music.mp3 stream
  
              }
  
          }
  
          recorder.stop();

  Please help me, I’m desesperate :p
  Ps : I’m using javacv 0.3 FFMPEG 1.06 OpenCv 2.4.3

• laravel 5.6 | upload video - Unable to probe

  23 février 2018, par syehbi herbian

  I was try to upload multiple video and i will get duration and frame with laravel-ffmpeg, so here’s my Controller :

  public function doCreate($lessonsid)
  
    {
  
        if (empty(Session::get('contribID'))) {
  
          return redirect('contributor/login');
  
        }
  
      # code...
  
      // validate
  
      // read more on validation at http://laravel.com/docs/validation
  
      $rules = array(
  
        'judul'          => 'required',
  
      //   'video.*'  => 'mimes:mp4,mov,ogg,webm |required|max:100000',
  
      //   'image.*' => 'mimes:jpeg,jpg,png,gif|required|max:30000'
  
      );
  
      $validator = Validator::make(Input::all(), $rules);
  
  
  
      // process the login
  
      if ($validator->fails()) {
  
          return redirect()->back()->withErrors($validator)->withInput();
  
      } else {
  
  
  
          $now          = new DateTime();
  
          $cid          = Session::get('contribID');
  
          $title        = Input::get('judul');
  
          $image_video = Input::file('image');
  
          $lessons_video = Input::file('video');
  
          // dd($lessons_video);
  
  
  
  
  
          $description  = Input::get('desc');
  
  
  
          $video=Video::where('lessons_id',$lessonsid)->get();
  
          $count_video=count($video);
  
  
  
  
  
          if (!is_dir("assets/source/lessons/lessons-$lessonsid")) {
  
                  $newforder=mkdir("assets/source/lessons/lessons-".$lessonsid);
  
          }
  
  
  
          $i=$count_video + 1;
  
          foreach ($title as $key => $titles) {
  
                  $type_video =$lessons_video[$key]->getMimeType();
  
  
  
                  if (!is_dir("assets/source/lessons/lessons-".$lessonsid."/video-".$i)) {
  
                          $newforder=mkdir("assets/source/lessons/lessons-".$lessonsid."/video-".$i);
  
                  }
  
                  $DestinationPath= 'assets/source/lessons/lessons-'.$lessonsid.'/video-'.$i;
  
                  //insert image
  
                  if(!empty($image_video[$key])){
  
                      $imagefilename    = $image_video[$key]->getClientOriginalName();
  
                      $image_video[$key]->move($DestinationPath, $imagefilename);
  
                  }else{
  
                      $imagefilename    = '';
  
                  }
  
                  if($imagefilename ==''){
  
                      $url_image= $imagefilename;
  
                  }else{
  
                      $urls=url('');
  
                      $url_image= $urls.'/assets/source/lessons/video-'.$i.'/'.$imagefilename;
  
                  }
  
  
  
                  //insert video
  
                  if(!empty($lessons_video[$key])){
  
                      $lessonsfilename    = $lessons_video[$key]->getClientOriginalName();
  
                      $lessons_video[$key]->move($DestinationPath, $lessonsfilename);
  
                  }else{
  
                      $lessonsfilename    = '';
  
                  }
  
                  if($lessonsfilename ==''){
  
                      $url_video= $lessonsfilename;
  
                  }else{
  
                      $urls=url('');
  
                      $url_video= $urls.'/assets/source/lessons/video-'.$i.'/'.$lessonsfilename;
  
                  }
  
                  $media = FFMpeg::open($url_video);
  
                  $frame = $media->getFrameFromString('00:00:13.37');
  
                  dd($lessonsfilename);    
  
  
  
  
  
  
  
                  $store                  = new Video;
  
                  $store->lessons_id      = $lessonsid;
  
                  $store->title           = $titles;
  
                  $store->image           = $url_image;
  
                  $store->video           = $url_video;
  
                  $store->description     = $description[$key];
  
                  $store->type_video      = $type_video;
  
                  $store->durasi          = 0;
  
                  $store->created_at      = $now;
  
                  $store->enable=1;
  
                  $store->save();
  
                  if($store){
  
                      // $media = FFMpeg::open($store->video);
  
                      // // $frame = FFMpeg::open($link)
  
                      // //         ->getFrameFromSeconds(10)
  
                      // //         ->export()
  
                      // //         ->toDisk('public')
  
                      // //         ->save($filename.'.png');
  
                      // // dd($frame);
  
                      // $durationInSeconds = $media->getDurationInSeconds();
  
                      // dd($media);
  
  
  
                  }
  
          $i++;
  
          }
  
  
  
          // Session::set('lessons_title',$title);
  
          // Session::set('lessons_category_id',$category_id);
  
          // Session::set('lessons_image',$image);
  
          // Session::set('lessons_description',$description);
  
  
  
          return redirect('contributor/lessons/'.$lessonsid.'/view')->with('success','Penambahan video berhasil');
  
  
  
      }
  
    }

  it give me an errors like this :

  Unable to probe /var/www/html/dev/laravel/storage/app/https://dev.cilsy.id/assets/source/lessons/video-4/1. Introduction (1).mp4

  so the problem is it the way I check that it has multiple file using is_array is right ? and the second what can cause this problems ?

• Using FFMPEG library with iPhone SDK for video encoding

  7 août 2020, par user203349

  I need to encode several pictures shot by the iPhone camera into a mp4 video file and I know FFMPEG can do this (the application TimeLapser and ReelMoments do it already). I plan to use this in my app iMotion (available in the appstore).

  


  I successfully install and compile the ffmpeg for the iphone SDK with this link :
http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-October/076618.html

  


  But now I'm stuck here in my XCode project. What should I do next to use the FFMPEG library for video encoding ? The Apple documentation about external library using is very light and I just can find any tutorial on the web which explains how to do this.