The VideoLAN Forums

Posted: **18 Jun 2014 16:30**

Hello,
I´m actually facing a possible memory leak with the vlc lib.

What I´m doing:
- Reading a rtsp stream from a webcam - url rtsp://192.168.0.1:554/axis-media/media.amp?resolution=1280x720&compression=50&fps=20" (as some of you can see its an axis camera).
- this one I want to read with vlc so I start the vlc instance with following arguments:

Code: Select all

  char smem_options[1000]; 
  sprintf(smem_options, "#transcode{vcodec=RV32,fps=%d,width=%d,height=%d}:smem{audio-prerender-callback=%lld,video-prerender-callback=%lld,audio-postrender-callback=%lld,video-postrender-callback=%lld,audio-data=%lld,video-data=%lld}", 
    m_FPS,
    m_ImageSizeX,
    m_ImageSizeY,
    (long long int) (intptr_t) (void *) &lockAudio, 
    (long long int) (intptr_t) (void *) &lockVideo,     
    (long long int) (intptr_t) (void *) &unlockAudio,  
    (long long int) (intptr_t) (void *) &unlockVideo,  
    (long long int) (intptr_t) (void *) &s_AudioData,
    (long long int) (intptr_t) (void *) &s_VideoData
    ); 
    
  /* Set arguments */
  const char * const l_VlcArgs[] = 
  {
      "-I", "dummy", // Don't use any interface
      "--verbose=2", // Be verbose
      "--no-sout-smem-time-sync", // deactivate time sync
      "--sout", smem_options // Stream to memory
      
  };        

  int l_VlcArgsLength = sizeof(l_VlcArgs) / sizeof(*l_VlcArgs);
  
  /* Create vlc instance */
  m_VLCMediaInstance = libvlc_new(l_VlcArgsLength, l_VlcArgs);

-> the code works and I get a correct image into the buffer s_VideoData ( I can save the image and handle the content)

My problem is that when I start the videostreaming the buffer increases slowly - very slowy. Instead of redirecting the output of transcode to smem I tried vmem and voila -> no memory increasing!! So I guess it has something to do with smem. Can someone try to reproduce the problem?! Any ideas how to counter/verify the problem!?!? I actually the check my code and I´m sure that its not a problem on my side.

Thanks for any ideas....

Additional infos:
Win7
vlc lib version 2.1.4

Posted: **19 Jun 2014 14:58**

Can someone of the admins put the post to the categorie Serving Streams -> VLC stream-output (sout)!?

Posted: **09 Jul 2014 03:22**

Do you free the buffers?

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