The VideoLAN Forums

Posted: **22 Aug 2010 01:12**

Hi

I see various topics openedon this forum talking about this module, but any show an usage example.
I want to do exactly what the topic below say.

viewtopic.php?f=32&t=80942&p=267510&hilit=imem#p267510

Unfortunately, i already spend much time searching too. And until now, no examples and no success on tests.

If someone know how to use this module, share and put here a simple example, please. I think that the help is not just for me, but for many people!

Thanks for some help.

ps.: sorry for my poor english...

Posted: **20 Sep 2010 16:01**

Hi,

Could you fine some info on imem? I need to use this module for getting audio input from memory. Can you help?

Posted: **03 Mar 2011 13:12**

Yes guy, sorry for delay. but if still help..

Code: Select all

libvlc_exception_t ex;
libvlc_instance_t* inst;
static const char* args[] = {
                                   "--codec", "invmem",
                                   "-vvvvv",
                                   "-I", "dummy",
                                   "--no-ipv6",
                                   "--ipv4",
                                   "--file-logging",
                                   "--drop-late-frames",
                                   "--skip-frames",
                                   "--no-sout-transcode-hurry-up",
                                   "--logfile", "/var/log/mylogfile"
                                   };

libvlc_exception_init(&ex);
inst = libvlc_new(argv, args, &ex);
if(inst == NULL || libvlc_exception_raised(&ex)) {
  //your error handler
}

char swidth[50], sheight[50], slock[50], sunlock[50], sdata[50];
char sinput[10];

sprintf(swidth, ":invmem-width=%d", 800);
sprintf(sheight, ":invmem-height=%d", 600);
sprintf(slock, ":invmem-lock=%lld", your_lock_function_ptr);
sprintf(sunlock, ":invmem-unlock=%lld", your_unlock_function_ptr);
sprintf(sdata, ":invmem-data=%lld", your_lock_unlock_functions_param_ptr);

const char* argvideo[] = {
                                    swidth,
                                    sheight,
                                    slock,
                                    sunlock,
                                    sdata
                                };

sprintf(sinput, "fake://");

libvlc_vlm_add_broadcast(inst,
                                     "id",
                                      sinput,
                                      soutput,
                                      sizeof(argvideo)/sizeof(argvideo[0]),
                                      argvideo,
                                      1,
                                      0,
                                      &ex);

On this example, i create a streamming server that encoding image frames from my memory buffer to a specific video format.
Hope that still help you and another people!

Any doubts, can contact me by email too.

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