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• FFMPEG images to video + overlay video

  7 novembre 2018, par AK47

  I am trying to make 15 second video where the background layer is a video made up of 2 images, the first line creates a 15 second video from 2 images.

  I chose a small framerate so it renders an mp4 quickly. I then overlay a webm video (which has transparency) over the images. The final video seems to keep the framerate of 2, but i would rather keep the 24 framerate of the webm video.

  Is this possible ? & is it also possible to turn the below into 1 statement.

  ffmpeg -loop 1 -framerate 2 -t 11 -i image1.png -loop 1 -framerate 2 -t 4 -i image2.png -filter_complex "[0][1]concat=n=2" backgroundvideo.mp4;
  
  ffmpeg -i backgroundvideo.mp4 -c:v libvpx-vp9 -i overlayvideo.webm -filter_complex overlay newvid.mp4

• FFMPEG Overlay 1080X1920 video over 1280X720 video at a particular vertical position

  9 mai 2019, par CRAIG

  I have a 1080X1920 (vertical) video with alpha channel with a blank spot 500px north of the bottom. This blank spot is 1080X607.

  I have a 1280X720 sized video I want to position in that spot, so the 1280 video will have to be sized down to 1080 wide and then positioned 500px from the bottom and UNDER the video on top.

  This is what I currently have, but it is failing beautifully.

  /usr/local/bin/ffmpeg  -i 1080x1920.mov -i 1280x720.MOV 
  
    -filter_complex "[1][0]overlay=main_w-overlay_w-0:main_h-overlay_h-500" 
  
    -c:v libx264 -profile:v high444 -pix_fmt yuv420p -level 3.1 -y  final.mp4

• upload video with display and upon submit that video by post method to PHP file where FFMPEG command execute

  30 avril 2019, par Asfand Yar

  Main Task
  Video -> Audio (Wav or mp3)
  Procedure :
  User select video and its display and upload in video player thats fine but when i try to upload via the form tag and post method to php file (Bash.php) where that video have to be converted into the audio (mp3 or wav) i am using FFMPEG library (THat command work perfectly into the Command line) I am trying to do it in php (exec) but didn’t find fruitful results

  I try FFMPEG command to convert uploaded mp4 video to audio because i need audio to transcription
  HTML CODE

  <video width="500" controls="controls" preload="none">
  
  
  
  </video>
  
  
  
  
  
  
  
  <div class="container d-flex justify-content-center">
  
  <input type="file" accept="video/*" />
  
  
  
  </div>
  
  
  
      <code class="echappe-js">&lt;script type=&quot;text/javascript&quot;&gt;<br />
  
      video_file.onchange = function(){<br />
  
  <br />
  
      var files = this.files;<br />
  
  <br />
  
      var file = URL.createObjectURL(files[0]); <br />
  
  <br />
  
      video_player.src = file; <br />
  
  <br />
  
      video_player.load();};  <br />
  
  <br />
  
  &lt;/script&gt;
  
       
  
  

  <?php  
  
      if(isset($_FILES['video'])){                                                                              
  
      $errors = array();     
  
          $file_name = $_FILES['video']['name'];                                                                
  
          $file_size = $_FILES['video']['size'];                                                                
  
          $file_tmp = $_FILES['video']['tmp_name'];                                                             
  
          $file_type = $_FILES['video']['type'];                                                                
  
          $file_ext = strtolower(end(explode('.',$_FILES['video']['name'])));   
  
  
  
  
  
      $expensions = array("mp4","avi");                                                                                                   
  
  
  
  
  
          if(in_array($file_ext, $expensions[0])===false){                   
  
              $errors[]="Extension not allowed, please choose a Mp4 or Avi file video";
  
          }                                                                                                              
  
      $convertedFile='fine.mp3';                                               
  
          if(empty($errors)==true){   
  
          move_uploaded_file($file_tmp, './'.$file_name);
  
          exec("ffmpeg -i $file_name -vn fine.mp3");
  
  
  
          }else{                                                                                                
  
              print_r($errors);                                                                                 
  
          }
  
      $target = "http://localhost:8888/client/dynamic/recognize";
  
      sleep(3);
  
  
  
      if($file_ext == "mp4" or $file_ext == "avi"){
  
          exec("python /path/client2.py fine.mp3 > output.txt 2> output2.txt"); 
  
  
  
          $output = exec("cat output.txt");   }
  
      echo $output;
  
      }
  
  ?>