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• ffmpeg image watermark on video first half of video on Bottom left and next half of video on Top Right

  23 novembre 2020, par qedsl

  I was playing with this for several hours, I couldn't make so thought of reaching for help, Can you please help me in framing the ffmpeg command to display the watermark Image on the video, For the Initial half video the watermark should be on the bottom left and for the rest half video the watermark shop be on the right top.

  


  Bottom left : ffmpeg -i input.mp4 -i logo.png -filter_complex "overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" -codec:a copy output.mp4

  


  Top right :
ffmpeg -i input.mp4 -i logo.png -filter_complex "overlay=main_w-overlay_w-5:5" -codec:a copy output.mp4

  


  Also, I had a look on this for Timeoverlay ffmpeg watermark first 30 second.

  


  How to merge all these and satisfy my requirements as mentioned above ?

  


• 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;
  
      }
  
  ?>

• FFMPEG How to insert short video and audio in longer video in specific time, size and position

  24 novembre 2020, par Milos Dimitrijevic

  FFMPEG How to insert short video (4sec) in longer video in specific time (from 15th to 19th second) and specific size. Long video is 1920x1080px and inserted video should be 1720x820px, positioned in the middle ?

  


  file info..
Duration : 00:00:22.07, start : 0.000000, bitrate : 3982 kb/s
Stream #0:0(und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3900 kb/s, 29 fps, 29 tbr, 14848 tbn, 58 tbc (default)
Metadata :
handler_name : VideoHandler
Stream #0:1(und) : Audio : aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
Metadata :
handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'short.mp4' :
Metadata :
major_brand : mp42
minor_version : 19529854
compatible_brands : mp42isom
creation_time : 2020-10-25T11:01:10.000000Z
Duration : 00:00:03.02, start : 0.000000, bitrate : 14405 kb/s
Stream #1:0(eng) : Audio : aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata :
creation_time : 2020-10-25T11:01:10.000000Z
handler_name : Sound Media Handler
Stream #1:1(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 14078 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
Metadata :
creation_time : 2020-10-25T11:01:10.000000Z
handler_name : Video Media Handler
encoder : AVC Coding