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• Create a RTSP video stream on a .NET platform

  12 décembre 2012, par Goro

  I want to create a RTSP/h264 video stream from static images, and incorporate it into my .NET application. So far I have found two possible ways to do this :

  1. Use ffmpeg/ffserver, but I would need to compile ffserver on windows and then rely on it... and I don't necessarily want to rely on an external application

  2. Use the LIVE555 (http://www.live555.com) library, but they do not have any .NET libraries, so I would need to spend some effort to make it work with the rest of my .NET application.

  Can you comment on either #1, #2, or which is better. Is there a faster way to bring up a RTSP server in .NET ? I do not mind putting in development time if there is a solid solution that takes time, but it would be good to have something we can work with fast, for prototyping and demos.

  Thank you,

• How to create a video from a series of images with varying image durations ?

  2 septembre 2014, par user1354557

  I’d like to programmatically create a video file that is composed of a series of images. However, I’d also like to be able to specify a duration for each image. I often see ffmpeg examples suggested for similar tasks, but they always assume the same duration for each image. Is there an efficient way to accomplish this ? (An inefficient solution might be setting the frame rate to something high and repeatedly copying each image until it matches the intended duration)

  I will be dynamically generating each of the images as well, so if there is way to encode the image data into video frames without writing each image to disk, that’s even better. This, however, is not a requirement.

  Edit : To be clear, I don’t necessarily need to use ffmpeg. Other free command-line tools are fine, as are video-processing libraries. I’m just looking for a good solution.

• Windows 2003 using php popen "start /b" because of executing ffmpeg.exe

  1er juillet 2013, par Oh Seung Kwon

  I have some problem.

  There is a php code that convert audio(wav) to mp3 file with using ffmpeg.exe.

  Here is some code.

  $cmd = "./inc/ffmpeg.exe -i ".$file_name." -acodec mp3 -y -ac 1 -ab 96k ".$mp3_file_name;
  
  
  
  echo $cmd;
  
  echo "Windows";
  
  $handle = popen("start /B ".$cmd, "r");
  
  while(!feof($handle)) {
  
      $read = fread($handle, 2096);
  
      echo $read;
  
  }
  
  pclose($handle);

  Problem is when I execute this code, ffmpeg.exe process isn't terminated. And not gonna die when I stop process with using Windows task manager.

  Do you have a solution for this situation ?