gstreamer/tools/element-templates/sinkpad

/* vim: set filetype=c: */

% instance-members
  GstPad *sinkpad;
% prototypes

static GstCaps* gst_replace_sink_getcaps (GstPad *pad);
static gboolean gst_replace_sink_setcaps (GstPad *pad, GstCaps *caps);
static gboolean gst_replace_sink_acceptcaps (GstPad *pad, GstCaps *caps);
static void gst_replace_sink_fixatecaps (GstPad *pad, GstCaps *caps);
static gboolean gst_replace_sink_activate (GstPad *pad);
static gboolean gst_replace_sink_activatepush (GstPad *pad, gboolean active);
static gboolean gst_replace_sink_activatepull (GstPad *pad, gboolean active);
static GstPadLinkReturn gst_replace_sink_link (GstPad *pad, GstPad *peer);
static void gst_replace_sink_unlink (GstPad *pad);
static GstFlowReturn gst_replace_sink_chain (GstPad *pad, GstBuffer *buffer);
static GstFlowReturn gst_replace_sink_chainlist (GstPad *pad, GstBufferList *bufferlist);
static gboolean gst_replace_sink_event (GstPad *pad, GstEvent *event);
static gboolean gst_replace_sink_query (GstPad *pad, GstQuery *query);
static GstFlowReturn gst_replace_sink_bufferalloc (GstPad *pad, guint64 offset, guint size,
    GstCaps *caps, GstBuffer **buf);
static GstIterator * gst_replace_sink_iterintlink (GstPad *pad);

% pad-template
static GstStaticPadTemplate gst_replace_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
    GST_PAD_SINK,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS ("application/unknown")
    );

% base-init
  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&gst_replace_sink_template));
% instance-init

  replace->sinkpad = gst_pad_new_from_static_template (&gst_replace_sink_template
      ,     
            "sink");
  gst_pad_set_getcaps_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_getcaps));
  gst_pad_set_setcaps_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_setcaps));
  gst_pad_set_acceptcaps_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_acceptcaps));
  gst_pad_set_fixatecaps_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_fixatecaps));
  gst_pad_set_activate_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_activate));
  gst_pad_set_activatepush_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_activatepush));
  gst_pad_set_activatepull_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_activatepull));
  gst_pad_set_link_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_link));
  gst_pad_set_unlink_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_unlink));
  gst_pad_set_chain_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_chain));
  gst_pad_set_chain_list_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_chainlist));
  gst_pad_set_event_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_event));
  gst_pad_set_query_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_query));
  gst_pad_set_bufferalloc_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_bufferalloc));
  gst_pad_set_iterate_internal_links_function (replace->sinkpad,
            GST_DEBUG_FUNCPTR(gst_replace_sink_iterintlink));
  gst_element_add_pad (GST_ELEMENT(replace), replace->sinkpad);


% methods

static GstCaps*
gst_replace_sink_getcaps (GstPad *pad)
{
  GstReplace *replace;
  GstCaps *caps;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "getcaps");

  caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));

  gst_object_unref (replace);
  return caps;
}

static gboolean
gst_replace_sink_setcaps (GstPad *pad, GstCaps *caps)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "setcaps");


  gst_object_unref (replace);
  return TRUE;
}

static gboolean
gst_replace_sink_acceptcaps (GstPad *pad, GstCaps *caps)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "acceptcaps");


  gst_object_unref (replace);
  return TRUE;
}

static void
gst_replace_sink_fixatecaps (GstPad *pad, GstCaps *caps)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "fixatecaps");


  gst_object_unref (replace);
}

static gboolean
gst_replace_sink_activate (GstPad *pad)
{
  GstReplace *replace;
  gboolean ret;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "activate");

  if (gst_pad_check_pull_range (pad)) {
    GST_DEBUG_OBJECT (pad, "activating pull");
    ret = gst_pad_activate_pull (pad, TRUE);
  } else {
    GST_DEBUG_OBJECT (pad, "activating push");
    ret = gst_pad_activate_push (pad, TRUE);
  }

  gst_object_unref (replace);
  return ret;
}

static gboolean
gst_replace_sink_activatepush (GstPad *pad, gboolean active)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "activatepush");


  gst_object_unref (replace);
  return TRUE;
}

static gboolean
gst_replace_sink_activatepull (GstPad *pad, gboolean active)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "activatepull");


  gst_object_unref (replace);
  return TRUE;
}

static GstPadLinkReturn
gst_replace_sink_link (GstPad *pad, GstPad *peer)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "link");


  gst_object_unref (replace);
  return GST_PAD_LINK_OK;
}

static void
gst_replace_sink_unlink (GstPad *pad)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "unlink");


  gst_object_unref (replace);
}

static GstFlowReturn
gst_replace_sink_chain (GstPad *pad, GstBuffer *buffer)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "chain");


  gst_object_unref (replace);
  return GST_FLOW_OK;
}

static GstFlowReturn
gst_replace_sink_chainlist (GstPad *pad, GstBufferList *bufferlist)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "chainlist");


  gst_object_unref (replace);
  return GST_FLOW_OK;
}

static gboolean
gst_replace_sink_event (GstPad *pad, GstEvent *event)
{
  gboolean res;
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "event");

  switch (GST_EVENT_TYPE (event)) {
    default:
      res = gst_pad_event_default (pad, event);
      break;
  }

  gst_object_unref (replace);
  return res;
}

static gboolean
gst_replace_sink_query (GstPad *pad, GstQuery *query)
{
  gboolean res;
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "query");

  switch (GST_QUERY_TYPE(query)) {
    default:
      res = gst_pad_query_default (pad, query);
      break;
  }

  gst_object_unref (replace);
  return res;
}

static GstFlowReturn
gst_replace_sink_bufferalloc (GstPad *pad, guint64 offset, guint size,
    GstCaps *caps, GstBuffer **buf)
{
  GstReplace *replace;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "bufferalloc");


  *buf = gst_buffer_new_and_alloc (size);
  gst_buffer_set_caps (*buf, caps);

  gst_object_unref (replace);
  return GST_FLOW_OK;
}

static GstIterator *
gst_replace_sink_iterintlink (GstPad *pad)
{
  GstReplace *replace;
  GstIterator *iter;

  replace = GST_REPLACE (gst_pad_get_parent (pad));

  GST_DEBUG_OBJECT(replace, "iterintlink");

  iter = gst_pad_iterate_internal_links_default (pad);

  gst_object_unref (replace);
  return iter;
}

% end