No element "testsink"

iron_guitarist1987 jtrinidadperez at gmail.com
Mon Jul 16 13:39:27 PDT 2012


Hello all,

I've made a simple sink element that accepts a data structure as an input,
but when I try to run it i get the following:

$gst-launch testsrc ! testsink
WARNING: erroneous pipeline: no element "testsink"


$ gst-inspect testsink
Plugin Details:
  Name:                 testsink
  Description:          inter sink element
  Filename:             /usr/lib/gstreamer-0.10/libTESTSINK.so
  Version:              0.10
  License:              Proprietary
  Source module:        gst-plugins-inter
  Binary package:       INTER Plugins source release
  Origin URL:           

  inter: testsink

  1 features:
  +-- 1 elements


Here is the code:

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
#include <gst/video/video.h>
#include "gsttestsink.h"
#include "interfaces.h"



GST_DEBUG_CATEGORY_STATIC (gst_testsink_debug);
#define GST_CAT_DEFAULT gst_testsink_debug

/* prototypes */


static void gst_testsink_set_property (GObject * object,
    guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_testsink_get_property (GObject * object,
    guint property_id, GValue * value, GParamSpec * pspec);
static void gst_testsink_dispose (GObject * object);
static void gst_testsink_finalize (GObject * object);

static GstCaps *gst_testsink_get_caps (GstBaseSink * sink);
static gboolean gst_testsink_set_caps (GstBaseSink * sink,
    GstCaps * caps);
static GstFlowReturn gst_testsink_buffer_alloc (GstBaseSink * sink,
    guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
static void gst_testsink_get_times (GstBaseSink * sink,
    GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
static gboolean gst_testsink_start (GstBaseSink * sink);
static gboolean gst_testsink_stop (GstBaseSink * sink);
static gboolean gst_testsink_unlock (GstBaseSink * sink);
static gboolean gst_testsink_event (GstBaseSink * sink,
    GstEvent * event);
static GstFlowReturn gst_testsink_preroll (GstBaseSink * sink,
    GstBuffer * buffer);
static GstFlowReturn gst_testsink_render (GstBaseSink * sink,
    GstBuffer * buffer);
static GstStateChangeReturn gst_testsink_async_play (GstBaseSink *
    sink);
static gboolean gst_testsink_activate_pull (GstBaseSink * sink,
    gboolean active);
static gboolean gst_testsink_unlock_stop (GstBaseSink * sink);

enum
{
  PROP_0
};

/* pad templates */

static GstStaticPadTemplate gst_testsink_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
    GST_PAD_SINK,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS ("struct/inter")
    );


/* class initialization */

#define DEBUG_INIT(bla) \
  GST_DEBUG_CATEGORY_INIT (gst_testsink_debug, "testsink", 0, \
      "debug category for testsink element");

GST_BOILERPLATE_FULL (GstTestsink, gst_testsink, GstBaseSink,
    GST_TYPE_BASE_SINK, DEBUG_INIT);

static void
gst_testsink_base_init (gpointer g_class)
{
  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);

  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&gst_testsink_sink_template));

  gst_element_class_set_details_simple (element_class, "testsink",
      "sink/inter", "A test sink for inter structures", "Jason Trinidad");
}

static void
gst_testsink_class_init (GstTestsinkClass * klass)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass);

  gobject_class->set_property = gst_testsink_set_property;
  gobject_class->get_property = gst_testsink_get_property;
  gobject_class->dispose = gst_testsink_dispose;
  gobject_class->finalize = gst_testsink_finalize;
  base_sink_class->get_caps = GST_DEBUG_FUNCPTR (gst_testsink_get_caps);
  base_sink_class->set_caps = GST_DEBUG_FUNCPTR (gst_testsink_set_caps);
  if (0)
    base_sink_class->buffer_alloc =
        GST_DEBUG_FUNCPTR (gst_testsink_buffer_alloc);
  base_sink_class->get_times =
      GST_DEBUG_FUNCPTR (gst_testsink_get_times);
  base_sink_class->start = GST_DEBUG_FUNCPTR (gst_testsink_start);
  base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_testsink_stop);
  base_sink_class->unlock = GST_DEBUG_FUNCPTR (gst_testsink_unlock);
  if (0)
    base_sink_class->event = GST_DEBUG_FUNCPTR (gst_testsink_event);
  //if (0)
  base_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_testsink_preroll);
  base_sink_class->render = GST_DEBUG_FUNCPTR (gst_testsink_render);
  if (0)
    base_sink_class->async_play =
        GST_DEBUG_FUNCPTR (gst_testsink_async_play);
  if (0)
    base_sink_class->activate_pull =
        GST_DEBUG_FUNCPTR (gst_testsink_activate_pull);
  base_sink_class->unlock_stop =
      GST_DEBUG_FUNCPTR (gst_testsink_unlock_stop);

}

static void
gst_testsink_init (GstTestsink * testsink,
    GstTestsinkClass * testsink_class)
{

  testsink->sinkpad =
      gst_pad_new_from_static_template (&gst_testsink_sink_template,
      "sink");

}

void
gst_testsink_set_property (GObject * object, guint property_id,
    const GValue * value, GParamSpec * pspec)
{
  /* GstTestsink *testsink = GST_TESTSINK (object); */

  switch (property_id) {
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
      break;
  }
}

void
gst_testsink_get_property (GObject * object, guint property_id,
    GValue * value, GParamSpec * pspec)
{
  /* GstTestsink *testsink = GST_TESTSINK (object); */

  switch (property_id) {
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
      break;
  }
}

void
gst_testsink_dispose (GObject * object)
{
  /* GstTestsink *testsink = GST_TESTSINK (object); */

  /* clean up as possible.  may be called multiple times */

  G_OBJECT_CLASS (parent_class)->dispose (object);
}

void
gst_testsink_finalize (GObject * object)
{
  /* GstTestsink *testsink = GST_TESTSINK (object); */

  /* clean up object here */

  G_OBJECT_CLASS (parent_class)->finalize (object);
}



static GstCaps *
gst_testsink_get_caps (GstBaseSink * sink)
{

  return NULL;
}

static gboolean
gst_testsink_set_caps (GstBaseSink * sink, GstCaps * caps)
{

  return TRUE;
}

static GstFlowReturn
gst_testsink_buffer_alloc (GstBaseSink * sink, guint64 offset,
    guint size, GstCaps * caps, GstBuffer ** buf)
{

  return GST_FLOW_ERROR;
}

static void
gst_testsink_get_times (GstBaseSink * sink, GstBuffer * buffer,
    GstClockTime * start, GstClockTime * end)
{
  GstTestsink *testsink = GST_TESTSINK (sink);

  if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
    *start = GST_BUFFER_TIMESTAMP (buffer);
    if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
      *end = *start + GST_BUFFER_DURATION (buffer);
    } 
  }


}

static gboolean
gst_testsink_start (GstBaseSink * sink)
{

  return TRUE;
}

static gboolean
gst_testsink_stop (GstBaseSink * sink)
{
  GstTestsink *testsink = GST_TESTSINK (sink);

  return TRUE;
}

static gboolean
gst_testsink_unlock (GstBaseSink * sink)
{

  return TRUE;
}

static gboolean
gst_testsink_event (GstBaseSink * sink, GstEvent * event)
{

  return TRUE;
}

static GstFlowReturn
gst_testsink_preroll (GstBaseSink * sink, GstBuffer * buffer)
{
  //return gst_testsink_render (sink, buffer);

  return GST_FLOW_OK;
}

static GstFlowReturn
gst_testsink_render (GstBaseSink * sink, GstBuffer * buffer)
{
  GstTestsink *testsink = GST_TESTSINK (sink);
  InterDetectedObjectSet *inter;
  
  inter = (InterDetectedObjectSet *) GST_BUFFER_DATA (buffer);

  g_print("%d\n", inter->boundingBoxHeight);
  
  return GST_FLOW_OK;
}

static GstStateChangeReturn
gst_testsink_async_play (GstBaseSink * sink)
{

  return GST_STATE_CHANGE_SUCCESS;
}

static gboolean
gst_testsink_activate_pull (GstBaseSink * sink, gboolean active)
{

  return TRUE;
}

static gboolean
gst_testsink_unlock_stop (GstBaseSink * sink)
{

  return TRUE;
}

static gboolean
testsink_init (GstPlugin * testsink)
{
  /* debug category for fltering log messages
   *
   * exchange the string 'Template georeg' with your description
   */
  GST_DEBUG_CATEGORY_INIT (gst_testsink_debug, "testsink",
      0, "INTER Sink");

  return gst_element_register (testsink, "inter", GST_RANK_NONE,
      GST_TYPE_TESTSINK);
}


#ifndef PACKAGE
#define PACKAGE "testsink"
#endif

/* gstreamer looks for this structure to register georeg
 */
GST_PLUGIN_DEFINE (
    GST_VERSION_MAJOR,
    GST_VERSION_MINOR,
    "testsink",
    "INTER sink element",
    testsink_init,
    VERSION,
    "Proprietary",
    GST_PACKAGE_NAME,
    "http://inter.eoir.com/"
)


Thank you


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