Sur d’autres sites (9181)

• Imagick refresh

  25 septembre 2013, par Mikko Koppanen — Imagick

  After some hiatus I’ve been getting back on fixing bugs on Imagick and getting the code into more representable condition. This hiatus has been a result of busy work schedule and getting a new start-up running in Kuala Lumpur.

  While fixing a bug related to clone keyword I came across the following resource : http://www.rubblewebs.co.uk/imagick/. The page contains quite a nice collection of Imagick operations and is definitely worth checking out.

  On the other news, the development has been moved to Github. As I’ve been the most active developer of Imagick in the past years I decided to move the code to Github where rest of my projects are located : https://github.com/mkoppanen/imagick. For the past few days there has been quite a lot of development, mainly working on removing the excessive use of macros in the code to make things more readable and debuggable. This might be a good place to give thanks to Remi for fixing quite a lot of compile warnings and raising bugs regarding Fedora Packaging Policy. Most likely there will be a couple of beta releases in the near future.

  As mentioned in the previous post Windows builds are now available via http://windows.php.net and my builds provided here should be considered obsolete.

• Imagick refresh

  25 septembre 2013, par Mikko Koppanen — Imagick

  After some hiatus I’ve been getting back on fixing bugs on Imagick and getting the code into more representable condition. This hiatus has been a result of busy work schedule and getting a new start-up running in Kuala Lumpur.

  While fixing a bug related to clone keyword I came across the following resource : http://www.rubblewebs.co.uk/imagick/. The page contains quite a nice collection of Imagick operations and is definitely worth checking out.

  On the other news, the development has been moved to Github. As I’ve been the most active developer of Imagick in the past years I decided to move the code to Github where rest of my projects are located : https://github.com/mkoppanen/imagick. For the past few days there has been quite a lot of development, mainly working on removing the excessive use of macros in the code to make things more readable and debuggable. This might be a good place to give thanks to Remi for fixing quite a lot of compile warnings and raising bugs regarding Fedora Packaging Policy. Most likely there will be a couple of beta releases in the near future.

  As mentioned in the previous post Windows builds are now available via http://windows.php.net and my builds provided here should be considered obsolete.

• PHP - Read and write the same file hangs

  2 février 2016, par Adracat

  I’m trying to use FFMPEG to make some works with video on the server, and something I need to do is to get the progress of the process.

  I searched a little and I found this solution which tells to write the log into a file and then reading and parsing it.

  The problem

  What is driving me crazy is that I tell FFMPEG - with exec - (process A) to write the log into a file, but when I try to read it - with file_get_contents() - (process B) it does not show the contents until process A is finished (or interrupted the PHP script).

  So, when process A finishes or it says "PHP script timeout", then I can read the file as times as I want, refreshing the page (process B) and showing the contents at the time.

  What I’ve tried

  I’ve tried to use fopen() to create the file with w, w+ and a parameters, using - and without using - fclose(). I’ve tried to use also flock() just in case it gets faster to read to process B if it knows it’s already locked and does not have to wait, but then FFMPEG is not able to write into the file.

  I’ve searched for multithreading too, but I think there must be an easier and simpler way.

  I’ve used also CURL and HTTP context, as this link suggests, but no luck.

  I’ve tried, too, to use PHP-FFMPEG but it’s not supporting the last FFMPEG version, so I cannot use it.

  When I said before "(or interrupted the PHP script)" is because I tried to wait and, when PHP got a timeout, process B worked alright and the file was still updating.

  The code

  Process A (fileA.php)

  exec('ffmpeg -y -i input_file.mp4 output_file.avi 2> C:\Full\Path\To\File\log.txt 1>&2');

  Process B (fileB.php)

  $content = file_get_contents($file);
  
  
  
  if($content){
  
      //get duration of source
  
      preg_match("/Duration: (.*?), start:/", $content, $matches);
  
  
  
      $rawDuration = $matches[1];
  
  
  
      //rawDuration is in 00:00:00.00 format. This converts it to seconds.
  
      $ar = array_reverse(explode(":", $rawDuration));
  
      $duration = floatval($ar[0]);
  
      if (!empty($ar[1])) $duration += intval($ar[1]) * 60;
  
      if (!empty($ar[2])) $duration += intval($ar[2]) * 60 * 60;
  
  
  
      //get the time in the file that is already encoded
  
      preg_match_all("/time=(.*?) bitrate/", $content, $matches);
  
  
  
      $rawTime = array_pop($matches);
  
  
  
      //this is needed if there is more than one match
  
      if (is_array($rawTime)){$rawTime = array_pop($rawTime);}
  
  
  
      //rawTime is in 00:00:00.00 format. This converts it to seconds.
  
      $ar = array_reverse(explode(":", $rawTime));
  
      $time = floatval($ar[0]);
  
      if (!empty($ar[1])) $time += intval($ar[1]) * 60;
  
      if (!empty($ar[2])) $time += intval($ar[2]) * 60 * 60;
  
  
  
      //calculate the progress
  
      $progress = round(($time/$duration) * 100);
  
  
  
      echo "Duration: " . $duration . "<br />";
  
      echo "Current Time: " . $time . "<br />";
  
      echo "Progress: " . $progress . "%";
  
  
  
  }

  The process

  I just open fileA.php on a Chrome tab and, after a few seconds, I open fileB.php on another Chrome tab (and it stays as loading).

  What I need

  I need to be able to load the file and show the information I want to show while the file is being written (by exec and FFMPEG or other PHP scripts), so I can update the progress percentage with some AJAX calls.

  Extra information

  At this point, I’m using PHP 5.4 on a IIS 7.5 with Windows 7 Professional.

  Thank you everyone for your time, help and patience !

  Best regards.