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• Web Based Playback of iOS Videos with Orientation Flag

  3 mars 2012, par shanee

  We just recently created an iPhone app for one of our system that allows users to upload picture and video content to our services. The last major hitch we are running into is how to handle videos that are uploaded in an orientation other than Horizontal Right. Apparently if your playback system does not account for the orientation flag sent with the video then it will play upside down or sideways.

  The correct approach appears to be that the playback system should take the orientation flag into account just prior to playback. This is the way Apple handles it directly on the device as well as through Quicktime.

  SO my first hope is that someone is aware of a web based (HTML5 or Flash) player that is capable of rotating a video during playback based on either the video orientation metadata or based on a passed flag (we already have the necessary flag available in the DB if we need to just pass it manually). If you know of any such player then PLEASE SHARE !

  If you aren't aware of such a player, then has anyone had any luck rotating their videos using FFMPEG or MEncoder ? We did a few hours of testing last week and weren't able to get any decent results from the two heavy hitters mentioned there.

  Failing ALL OF THAT, is it possible to have the iPhone upload a video or image in a specified direction ?

  Any of the three will work for me, but I would prefer to do whatever is standard (if one exists).

  Any help is much appreciated !

• phpvideotoolkit class errors on xampp installed on windows server 2008

  6 mars 2016, par Sourabh Swarnkar

  find i m trying to convert sequence of images into a video. and for that i canme to know about the ffmpeg class.

  the only wrapper class that i found is phpvideotoolkit but i m not able to work with it.

  i installed phpvideotoolkit on xampp on my windows 2008 server . but it is throwing alor of errors

  This example shows you how to extract a specific frame from a movie.
  
  
  
  
  
  Notice: Undefined property: PHPVideoToolkit::$_tmb_directory in C:\xampp\htdocs\phpvideo\phpvideotoolkit.php5.php on line 869
  
  
  
  Notice: Undefined offset: 0 in C:\xampp\htdocs\phpvideo\phpvideotoolkit.php5.php on line 877
  
  PHPVideoToolkit Error: Execute error. Output for file "C:\xampp\htdocs\phpvideo\examples\working\to-be-processed\MOV00007.3gp" was not found. No images were generated.
  
  
  
  Notice: Undefined property: PHPVideoToolkit::$_tmb_directory in C:\xampp\htdocs\phpvideo\phpvideotoolkit.php5.php on line 869
  
  
  
  Notice: Undefined offset: 0 in C:\xampp\htdocs\phpvideo\phpvideotoolkit.php5.php on line 877
  
  PHPVideoToolkit Error: Execute error. Output for file "C:\xampp\htdocs\phpvideo\examples\working\to-be-processed\Video000.3gp" was not found. No images were generated.
  
  
  
  Notice: Undefined property: PHPVideoToolkit::$_tmb_directory in C:\xampp\htdocs\phpvideo\phpvideotoolkit.php5.php on line 869
  
  
  
  Notice: Undefined offset: 0 in C:\xampp\htdocs\phpvideo\phpvideotoolkit.php5.php on line 877
  
  PHPVideoToolkit Error: Execute error. Output for file "C:\xampp\htdocs\phpvideo\examples\working\to-be-processed\cat.mpeg" was not found. No images were generated.

  example

  PHPVideoToolkit Error: Execute error. Output for file "C:\xampp\htdocs\phpvideo\examples\working\tmp\1336156630-4fa421d69357d\tmp_%d.jpg" was not found. Please check server write permissions and/or available codecs compiled with FFmpeg. You can check the encode decode availability by inspecting the output array from PHPVideoToolkit::getFFmpegInfo().

  i m trying to make it work since last many hours but no luck

  Also, for this code :

  $srcFile = "test-mpeg.mpg";
  
  $ffmpegObj = new ffmpeg_movie($srcFile);

  i am gettign error that it cant file the file. i believe its something to do with permissions but i m not able to figure out

  fpoen , fwrite , file_put_contents all are working fine without any permissions problems.

  can anyone please guide me in the write direction. what do i need to do to make this phpvideotoolkit work

• Minutes and seconds as a variable in Python

  28 juin 2014, par Badr Hari

  How can I store hours/minutes/seconds as variable in python ?

  For example :

  time = "01:30" # 1 minute and 30 seconds
  
  time2 = time + 10 seconds

  Basically a program (using FFMPEG) will decide when to start playing an audio file but the value can be changed in +-10 seconds. The questions is how can I store this value ?

  To clarify my question :
  The time variable is "01:30" which clearly represent the time, 01 min 30 seconds. How can I add 10 seconds to it to make the variable 10:40 ? Clearly 01:30+:00:10 is not the solution.