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• Happy Ada Lovelace Day to Women in Multimedia R&D

  24 mars 2010, par silvia

  In my field of interest, namely Multimedia, there are not many women active in research and technology development. The more reasons to expose them and point to their great achievements. In my time as a young researcher at the University of Mannheim, I met Prof Wendy Hall of the University of (...)

• How to count variable in for loop in power shell

  17 avril 2020, par ilham zacky

  I am using powershell and i have got a for loop running each time 3 variables get printed, for now, loop runs 5 times. I need to get the count like $i++

  



  This is a part of my code

  



  $file = "D:\edl\input\CPExport.xlsx"
$sheetName = "Sheet1"
$objExcel = New-Object -ComObject Excel.Application
$workbook = $objExcel.Workbooks.Open($file)
$sheet = $workbook.Worksheets.Item($sheetName)
$objExcel.Visible = $false
$rowMax = ($sheet.UsedRange.Rows).count
$nu = 0
$rowcount = 000 

for ($i = 0; $i -le $rowMax - 1; $i++) {
    $id = $sheet.Cells.Item($rowName + $i, $colName).text
    $name = $sheet.Cells.Item($rowAge + $i, $colAge).text
    $subtitle = $sheet.Cells.Item($rowCity + $i, $colCity).text
    $jpgId = "$id.jpg"
    $videoId = "$id.mp4"
    $audioId = "$id.m4a"
    $duration1 = if ((ffmpeg -i $audioId 2>&1 | Out-String) -match 'Duration:\s+([\d:"."]+)') { $matches[1] };
    $duration2 = if ((ffmpeg -i $jpgId 2>&1 | Out-String) -match 'Duration:\s+([\d:"."]+)') { $matches[1] };
    $duration = if ((ffmpeg -i $videoId 2>&1 | Out-String) -match 'Duration:\s+([\d:"."]+)') { $matches[1] };

    $newduration = ("$duration").Replace(".", ":")
    $newduration1 = ("$duration1").Replace(".", ":")
    $newduration2 = ("$duration2").Replace(".", ":")

    $out1 = ""
    $out2 = ""
    $out = ""
    $nu++
    $rowcount++
    if ($newduration1) {

        if ($nu -eq 1) {
            $audioA = "00:00:00:00"
        }

        $audioB = Add-Frame -Base $newduration1 -Offset $audioA
        $out1 = "$rowcount" + "  " + "AX" + "   " + "AA" + "     " + "C" + "   " + "00:00:00:00" + " " + $newduration1 + "   " + $audioA 
    }

    if ($newduration2) {

        $imagecal = Add-Frame -Base $imageA -Offset "00:00:06:00"
        $imageB = $imagecal
        $out = "$rowcount" + "  " + "AX" + "   " + "V" + "      " + "C" + "   " + "02:00:05:15" + " " + $newduration2 + "   " + " " + $imageA 
    }


    if ($newduration) {

        $videoA = $imageB
        $videocal = Add-Frame -Base $newduration -Offset $videoA
        $videoB = $videocal
        $out2 = "$rowcount" + "  " + "AX" + "   " + "AA/V" + "   " + "C" + "   " + "00:00:00:00" + " " + $hh + "   " + " " + $videoA 
    }
    else {
        $videoB = ""
    }
    $gg = $out1 + "`n" + "`n" + $out + "`n" + "`n" + $out2 + "`n"
    echo $gg

    $gg | Out-File -FilePath d:\edl\input\output.txt -Append
}
#close excel file
$objExcel.quit()


  



  i have echo $gg
this is the output

  



  1 AX   AA     C   00:00:00:00 00:00:03:48   
1  AX   V      C   02:00:05:15 02:00:11:15
1  AX   AA/V   C   00:00:00:00 00:00:06:93 
2  AX   AA     C   00:00:00:00 00:00:03:46   
2  AX   V      C   02:00:05:15 02:00:11:15    
2  AX   AA     C   00:00:00:00 00:00:03:46  
3  AX   AA     C   00:00:00:00 00:00:03:52   
3  AX   V      C   02:00:05:15 02:00:11:15   
3  AX   AA/V   C   00:00:00:00 00:00:06:93    
4  AX   AA     C   00:00:00:00 00:00:03:21   
4  AX   V      C   02:00:05:15 02:00:11:15    
4  AX   AA     C   00:00:00:00 00:00:03:21   
5  AX   AA     C   00:00:00:00 00:00:03:05   
5  AX   V      C   02:00:05:15 02:00:11:15    
5  AX   AA/V   C   00:00:00:00 00:00:06:93    


  



  Output prints only 1-5 
I need it to be printed 1 - 15

  



  any suggestions ?

  



  thank you for reading

  


• How to add ffmpeg watermark text and trim videos to 60 seconds on this PHP video upload ?

  6 novembre 2017, par Brains Akd

  Below is the code for my video upload

  if (isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST") {
  
  
  
  
  
       if (isset($_GET['id']) && $_GET['id'] != "") {
  
           $id = $_GET['id'];
  
      }/* else {
  
          $id = $_SESSION['user_id'];
  
      }*/
  
     extract($_POST) ;
  
  
  
      $path = "video/answer_video/"; //set your folder path
  
      //set the valid file extensions 
  
     // $valid_formats = array("mp4", "jpg", "png", "gif", "bmp", "jpeg", "GIF", "JPG", "PNG", "doc", "txt", "docx", "pdf", "xls", "xlsx"); //add the formats you want to upload
  
   $valid_formats = array("mp4"); //add the formats you want to upload
  
  
  
      $name = $_FILES['answer_video']['name']; //get the name of the file
  
  
  
      $size = $_FILES['answer_video']['size']; //get the size of the file
  
  
  
      if (strlen($name)) { //check if the file is selected or cancelled after pressing the browse button.
  
          list($txt, $ext) = explode(".", $name); //extract the name and extension of the file
  
          if (in_array($ext, $valid_formats)) { //if the file is valid go on.
  
              if ($size ) { // check if the file size is more than 2 mb
  
                  $file_name = $_POST['filename']; //get the file name
  
                  $question_id = $_POST['question_id'];  
  
                  // $title = $_POST['title']; 
  
                  $title = strip_tags(trim($_POST['title']));
  
                  //get hashtag from message
  
                  $hashtag = gethashtags($title);
  
  
  
                  //$tags = $_POST['tags']; 
  
                  $category = $_POST['category']; 
  
  
  
                  $tmp = $_FILES['answer_video']['tmp_name'];
  
  
  
  
  
                  if (move_uploaded_file($tmp, $path . $name)) { //check if it the file move successfully.
  
                       $answer_video = $name;
  
                         $answer_type = "uploaded";
  
  
  
                      $video = $path . $name;
  
                      $length = 5;
  
  
  
  $randomletter = substr(str_shuffle("abcdefghijklmnopqrstuvwxyz"), 0, $length);
  
                     $rand = rand(1,10000000);
  
  $uniqueName = uniqid($rand);
  
  $thumbnail = "images/thumbnail_{$uniqueName}_{$randomletter}.jpg";
  
  
  
  // shell command [highly simplified, please don't run it plain on your script!]
  
  shell_exec("ffmpeg -i $video -deinterlace -an -ss 1 -t 00:00:01 -r 1 -y -vcodec mjpeg -f mjpeg $thumbnail 2>&1");
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
                      $msg = "Uploaded Successfully!";   
  
  
  
                       echo json_encode(array('msg'=>$msg,'res'=>$question_id));
  
                        $userid = $_SESSION['user_id'];

  How do I add top right watermark and trim the uploading videos to 30 seconds.? please do help

  I tried many times but it didn’t work..
  Your help is appreciated..
  Ffmpeg is working fine on the server and but didnt know how to do the above required