Esempi in C++ (Cpp) per gst_gl_display_context_propagate

Esempio n. 1

File: gstglutils.c Progetto: ystreet/gst-plugins-gl

gboolean
gst_gl_ensure_display (gpointer element, GstGLDisplay ** display_ptr)
{
  GstGLDisplay *display;

  g_return_val_if_fail (element != NULL, FALSE);
  g_return_val_if_fail (display_ptr != NULL, FALSE);

  /*  1) Check if the element already has a context of the specific
   *     type.
   */
  display = *display_ptr;
  if (gst_gl_display_found (element, display))
    return TRUE;

  gst_gl_display_context_prepare (element, display_ptr);

  /* Neighbour found and it updated the display */
  if (gst_gl_display_found (element, *display_ptr))
    return TRUE;

  /* If no neighboor, or application not interested, use system default */
  display = gst_gl_display_new ();

  *display_ptr = display;

  gst_gl_display_context_propagate (element, display);

  return display != NULL;
}

Esempio n. 2

gboolean
gst_gl_ensure_element_data (gpointer element, GstGLDisplay ** display_ptr,
    GstGLContext ** context_ptr)
{
  GstGLDisplay *display;

  g_return_val_if_fail (element != NULL, FALSE);
  g_return_val_if_fail (display_ptr != NULL, FALSE);
  g_return_val_if_fail (context_ptr != NULL, FALSE);

  /*  1) Check if the element already has a context of the specific
   *     type.
   */
  display = *display_ptr;
  if (gst_gl_display_found (element, display))
    goto done;

  gst_gl_display_context_query (element, display_ptr);

  /* Neighbour found and it updated the display */
  if (gst_gl_display_found (element, *display_ptr))
    goto get_gl_context;

  /* If no neighboor, or application not interested, use system default */
  display = gst_gl_display_new ();

  *display_ptr = display;

  gst_gl_display_context_propagate (element, display);

get_gl_context:
  if (*context_ptr)
    goto done;

  gst_gl_context_query (element);

done:
  return *display_ptr != NULL;
}