v4l2src rtsp streaming connect error

[JongIlLee]

hi~~

I am using a notebook (ubuntu 14.04), using the v4l2src element and rtsp server,
It succeeded in real-time image reproduction.
But here there is a problem.
Only one client can be connected.
During the client connects to the server, other clients access impossible.
The following error is output.
Multiple clients are designed to be connected .....
I really do not help me
------------------------------------------------------------------------------------------------------------
Impossible to access client error:
[0x7f7ab4000ed8] live555 demux error: Failed to connect with rtsp: // LocalIP: 8554 / test
[0x7f7abc0009b8] main input error: open of `rtsp: // LocalIP: 8554 / test 'failed
------------------------------------------------------------------------------------------------------------
server error:
libv4l2: error setting pixformat: Device or resource busy
------------------------------------------------------------------------------------------------------------

here is my c program code:
----------------------------------------------------------------------------

#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>
#undef WITH_AUTH

static gboolean
timeout (GstRTSPServer * server, gboolean ignored)
{
  //g_print("server 2second timeout \n");
  GstRTSPSessionPool *pool;

  pool = gst_rtsp_server_get_session_pool (server);
  gst_rtsp_session_pool_cleanup (pool);
  g_object_unref (pool);

  return TRUE;
}

int main (int argc, char *argv[]){

  g_print("main start\n");
  GMainLoop *loop;

  GstRTSPServer *server;

GstRTSPMountPoints *mount;
  GstRTSPMediaFactory *factory;
#ifdef WITH_AUTH
  GstRTSPAuth *auth;
  gchar *basic;
#endif

  gst_init (&argc, &argv);

  loop = g_main_loop_new (NULL, FALSE);
  server = gst_rtsp_server_new ();
  mount = gst_rtsp_server_get_mount_points(server);

  auth = gst_rtsp_auth_new ();
  basic = gst_rtsp_auth_make_basic ("user", "admin");
  gst_rtsp_auth_set_basic (auth, basic);
  g_free (basic);

  gst_rtsp_server_set_auth (server, auth);
#endif


  factory = gst_rtsp_media_factory_new ();

  gst_rtsp_media_factory_set_launch (factory, "( "
      "v4l2src device=/dev/video0 ! video/x-raw,width=1280,height=720,framerate=30/1 ! x264enc ! queue ! rtph264pay name=pay0 pt=96 ! audiotestsrc ! audio/x-raw,rate=8000 ! alawenc ! rtppcmapay name=pay1 pt=97 "")");

  gst_rtsp_mount_points_add_factory (mount, "/test", factory);

  g_print("media add factory success \n");



  g_object_unref (mount);

  if (gst_rtsp_server_attach (server, NULL) == 0)
    goto failed;

  g_timeout_add_seconds (2, (GSourceFunc) timeout, server);

  g_print("main end\n");
  g_main_loop_run (loop);
  return 0;

failed:
  {
    g_print ("failed to attach the server\n");
    return -1;
  }
}

[Nicolas Dufresne-4]

Le mercredi 13 juillet 2016 à 00:32 -0700, JongIlLee a écrit :

> Impossible to access client error:
> [0x7f7ab4000ed8] live555 demux error: Failed to connect with rtsp: //
> LocalIP: 8554 / test
> [0x7f7abc0009b8] main input error: open of `rtsp: // LocalIP: 8554 /
> test
> 'failed
> -------------------------------------------------------------------
> -----------------------------------------
> server error:
> libv4l2: error setting pixformat: Device or resource busy
> ------------------------------------------------------------

You can't use v4l2src from the same device in two separate pipelines.
What you most likely want is to use:

  gst_rtsp_media_factory_set_shared()

This will ensure that for a certain rtsp path, the same pipeline will
be used. This is specificly needed for live pipelines.

Nicolas
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[JongIlLee]

hi~! Nicolas

You gave me alive

Thanks to you, I solved the problem.

It is really appreciated. You are my benefactor.

I really appreciate it.

god bless you

Thank you very much