GstRtspSink - C Examples

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GstRtspSink
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Evaluating GstRtspSink
Building the Plug-In
Basic usage
Multicast
RTSP over HTTP Tunneling
Basic Authentication
Stream Encryption
Independent Stream Control
Simple Examples
Advanced examples
C Examples
Performance
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Legacy GstRtspSink
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This wiki provides serves as a guide on how to evaluate the C example applications provided in the project

Location

The C examples are provided in the project. You'll find the sources in 

 gst-rtsp-sink/src/examples/

The examples are built along with the the plug-in. All the examples will stream using the following configuration:

Service
12345
Mapping
/ridgerun

Manual Link Example

This example shows an example application on how to manually create and link each element independently. For this gst_element_factory_make and gst_element_link_many are used. 

/* 
 * Copyright (C) 2016-2017 RidgeRun, LLC (http://www.ridgerun.com)
 * All Rights Reserved.
 *
 * The contents of this software are proprietary and confidential to RidgeRun,
 * LLC.  No part of this program may be photocopied, reproduced, or translated
 * into another programming language without the prior written consent of 
 * RidgeRun, LLC.  The user is free to modify the source code after obtaining
 * a software license from RidgeRun.  All source code changes must be provided
 * back to RidgeRun without any encumbrance.
 */
#include <gst/gst.h>
#include <glib-unix.h>

#define MAPPING "/ridgerun"
#define SERVICE "12345"

gboolean
signal_handler (gpointer user_data)
{
  GMainLoop * loop = (GMainLoop *)user_data;

  g_print ("Interrupt received, closing...\n");
  g_main_loop_quit (loop);

  return TRUE;
}

int main (gint argc, gchar *argv[])
{
  GstElement * pipeline;
  GstElement * vts;
  GstElement * encoder;
  GstElement * capsfilter;
  GstElement * rtsp;
  GstCaps * caps;
  GMainLoop * loop;
  gint ret = -1;
  
  gst_init (&argc, &argv);

  pipeline = gst_pipeline_new ("GstRtspSink");

  /* Creating the different elements in the pipeline */
  vts = gst_element_factory_make ("videotestsrc", "videotestsrc");
  if (!vts) {
    g_printerr ("Unable to create videotestsrc\n");
    goto no_vts;
  }
  g_object_set (vts, "is-live", TRUE, NULL);
  
  encoder = gst_element_factory_make ("x264enc", "x264enc");
  if (!encoder) {
    g_printerr ("Unable to create x264enc\n");
    goto no_enc;
  }
  g_object_set (encoder, "speed-preset", 1, "key-int-max", 10, NULL);

  capsfilter = gst_element_factory_make ("capsfilter", "capsfilter");
  if (!capsfilter) {
    g_printerr ("Unable to create capsfilter\n");
    goto no_caps;
  }
  caps = gst_caps_from_string ("video/x-h264,mapping=" MAPPING);
  g_object_set (capsfilter, "caps", caps, NULL);
  gst_caps_unref (caps);

  rtsp = gst_element_factory_make ("rtspsink", "rtspsink");
  if (!rtsp) {
    g_printerr ("Unable to create rtspsink\n");
    goto no_rtsp;
  }
  g_object_set (rtsp, "service", SERVICE, NULL);

  /* Linking all the elements together */
  gst_bin_add_many (GST_BIN (pipeline), vts, encoder, capsfilter, rtsp, NULL);
  gst_element_link_many (vts, encoder, capsfilter, rtsp, NULL);

  /* Playing the pipeline */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  g_print ("New RTSP stream started at rtsp://127.0.0.1:" SERVICE MAPPING "\n");
  
  /* Block until CTRL+C is pressed */
  loop = g_main_loop_new (NULL, TRUE);
  g_unix_signal_add (SIGINT, signal_handler, loop);
  g_main_loop_run (loop);
  g_main_loop_unref (loop);
  
  /* NULL the pipeline */
  gst_element_set_state (pipeline, GST_STATE_NULL);

  /* Successful run */
  g_print ("Successfully closed\n");
  ret = 0;
  goto no_vts;
  
 no_rtsp:
  gst_object_unref (capsfilter);
  
 no_caps:
  gst_object_unref (encoder);
  
 no_enc:
  gst_object_unref (vts);
  
 no_vts:
  gst_object_unref (pipeline);
  gst_deinit ();
  
  return ret;
}

Parse Launch Example

This example shows an example application on how to automatically build the pipeline. For this gst_parse_launch_full' is used. 

/* 
 * Copyright (C) 2016-2017 RidgeRun, LLC (http://www.ridgerun.com)
 * All Rights Reserved.
 *
 * The contents of this software are proprietary and confidential to RidgeRun,
 * LLC.  No part of this program may be photocopied, reproduced or translated
 * into another programming language without prior written consent of 
 * RidgeRun, LLC.  The user is free to modify the source code after obtaining
 * a software license from RidgeRun.  All source code changes must be provided
 * back to RidgeRun without any encumbrance.
 */
#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>
#include <glib-unix.h>

#define MAPPING "/ridgerun"
#define SERVICE "12345"

static gboolean
signal_handler (gpointer user_data)
{
  GMainLoop * loop = (GMainLoop *)user_data;

  g_print ("Interrupt received, closing...\n");
  g_main_loop_quit (loop);

  return TRUE;
}

static void
client_removed_cb(GstElement *rtspsink, GstRTSPUrl * url, gpointer data)
{
  g_print("Removed Client: %s:%d\n", url->host, url->port);
}

static void
client_added_cb(GstElement *rtspsink, GstRTSPUrl * url, gpointer data)
{
  g_print("Added Client: %s:%d\n", url->host, url->port);
}

int main (gint argc, gchar *argv[])
{
  GstElement * pipeline;
  GstElement * rtspsink;
  GMainLoop * loop;
  gint ret = -1;
  const gchar * desc;
  GError *error = NULL;
  
  gst_init (&argc, &argv);

  desc = "videotestsrc is-live=true ! x264enc speed-preset=ultrafast key-int-max=10 ! "
    "video/x-h264,mapping=" MAPPING " ! rtspsink name=sink service=" SERVICE;
  pipeline = gst_parse_launch_full (desc, NULL, GST_PARSE_FLAG_FATAL_ERRORS, &error);
  if (!pipeline || error) {
    g_printerr ("Unable to build pipeline: %s", error->message ? error->message : "(no debug)");
    goto out;
  }

  rtspsink = gst_bin_get_by_name(GST_BIN(pipeline), "sink");

  g_signal_connect(rtspsink, "client-added", G_CALLBACK(client_added_cb), NULL);
  g_signal_connect(rtspsink, "client-removed", G_CALLBACK(client_removed_cb), NULL);

  /* Playing the pipeline */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  g_print ("New RTSP stream started at rtsp://127.0.0.1:" SERVICE MAPPING "\n");
  
  /* Block until CTRL+C is pressed */
  loop = g_main_loop_new (NULL, TRUE);
  g_unix_signal_add (SIGINT, signal_handler, loop);
  g_main_loop_run (loop);
  g_main_loop_unref (loop);
  
  /* NULL the pipeline */
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (pipeline);
  
  /* Successful run */
  g_print ("Successfully closed\n");
  ret = 0;

 out:
  gst_deinit ();
  
  return ret;
}

RTSP Clients

VLC

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING=ridgerun

vlc rtsp://${IP_ADDRESS}:${PORT}/${MAPPING}

GStreamer

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING=ridgerun

gst-launch-1.0 playbin uri=rtsp://${IP_ADDRESS}:${PORT}/${MAPPING}

MPlayer

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING=ridgerun

mplayer rtsp://${IP_ADDRESS}:${PORT}/${MAPPING}

Totem

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING=ridgerun

totem rtsp://${IP_ADDRESS}:${PORT}/${MAPPING}



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