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• hwcontext_vulkan : correctly download and upload flipped images

  21 avril 2020, par Lynne

  hwcontext_vulkan : correctly download and upload flipped images
  We derive the destination buffer stride from the input stride,
  
  which meant if the image was flipped with a negative stride,
  
  we'd be FFALIGNING a negative number which ends up being huge,
  
  thus making the Vulkan buffer allocation fail and the whole
  
  image transfer fail.
  Only found out about this as OpenGL compositors can copy an entire
  
  image with a single call if its flipped, rather than iterate over
  
  each line.
  

  • [DH] libavutil/hwcontext_vulkan.c

• Error on Using ffmpeg to download and decrypt aes-128 HLS video stream

  18 décembre 2016, par user1284567

  im trying to download and decrypt some video file
  i have the keyfile and the manifest file but ffmpeg shows up an error

  Error when loading first segment 'http://212......m3u8: Invalid data found when processing input

  here are the 2 files (key and manifest.m3u8)

  http://www.mediafire.com/file/q1t2bwijys9kzt3/manifest.m3u8
  http://www.mediafire.com/file/bsn9am2s89cqm4v/file.key

  thank you for any help !

• Download MP4 Video In Specific Folder In server With CURL

  14 novembre 2017, par Alish

  I’m Trying To Download .MP4 Extension File With PHP Code In Specific Folder My Code Working Fine For .MP4 Extension Only But I Can’t Download This URL MP4 Video With This Code

  https://r3---sn-vgqsrnel.c.doc-0-0-sj.sj.googleusercontent.com/videoplayback?itag=18&key=yt6&source=youtube&mime=video%2Fmp4&sparams=dur%2Cei%2Cid%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Cratebypass%2Csource%2Cexpire&mv=m&ipbits=0&ratebypass=yes&ms=au&mn=sn-vgqsrnel&pl=28&mm=31&dur=296.147&id=o-AGGQKzVE4Kx-vQgQkb_7v_-2v8RJEP8bYukfJukhn8PM&expire=1510672628&lmt=1510636913694890&ip=107.178.194.23&mt=1510650948&ei=lLQKWoz2NcruDrDrikg&signature=B548DE94A6C594DE473F900D22D3A2685FBEBDED.126ED86D280FC8A4B1FF33B62A6F02EFC0E43576

  I’m Trying This Code

      function download ($url, $location){
  
      $ch = curl_init();
  
      curl_setopt($ch, CURLOPT_URL, $url);
  
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  
      curl_setopt($ch, CURLOPT_SSLVERSION,3);
  
      curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
  
      $data = curl_exec ($ch);
  
      $error = curl_error($ch);
  
      curl_close ($ch);
  
  
  
  
  
      $file = fopen($location, "wb");
  
      fwrite($file, $data);
  
      fclose($file);
  
      return 'done';
  
      }
  
      ?>
  
      
  
      
  
      
  
      <form method="post" action="&lt;?php echo $_SERVER['PHP_SELF'];?>">
  
      Video URL (Only With .MP4 Extension): 
  
      <input type="text" placeholder="Video URL Here" required="required" /><br />
  
      Video ID Number:
  
      <input type="text" placeholder="Video ID Nmber eg:1,2,3" required="required" /><br />
  
      <input type="submit" />
  
      </form>
  
      
  
      
  
      &lt;?php 
  
      @$url = $_POST['url'];
  
      @$ID = $_POST['id'];
  
      $SCRIPT_DIR = dirname(__FILE__);
  
      $TEMP_DIR = $SCRIPT_DIR . '/videos/'; 
  
      $location = $TEMP_DIR . $ID . '.mp4';
  
      if(isset($_POST['url'])){
  
  
  
          echo download($url, $location);
  
  
  
      }