Exemplos de _gst_context_query em C++ (Cpp)

Exemplo n.º 1

Arquivo: gstglutils.c Projeto: thaytan/gst-plugins-base

static void
gst_gl_display_context_query (GstElement * element, GstGLDisplay ** display_ptr)
{
  _gst_context_query (element, GST_GL_DISPLAY_CONTEXT_TYPE);
  if (*display_ptr)
    return;

#if GST_GL_HAVE_WINDOW_X11
  _gst_context_query (element, "gst.x11.display.handle");
  if (*display_ptr)
    return;
#endif

#if GST_GL_HAVE_WINDOW_WAYLAND
  _gst_context_query (element, "GstWaylandDisplayHandleContextType");
  if (*display_ptr)
    return;
#endif
}

Exemplo n.º 2

Arquivo: gstglutils.c Projeto: ego5710/gst-plugins-bad

static void
gst_gl_display_context_query (GstElement * element, GstGLDisplay ** display_ptr)
{
  GstContext *ctxt;
  GstQuery *query;

#ifndef GST_DISABLE_GST_DEBUG
  if (!GST_CAT_CONTEXT)
    GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
#endif

  query =
      _gst_context_query (element, display_ptr, GST_GL_DISPLAY_CONTEXT_TYPE);
  gst_query_parse_context (query, &ctxt);
  if (ctxt && gst_context_has_context_type (ctxt, GST_GL_DISPLAY_CONTEXT_TYPE))
    gst_context_get_gl_display (ctxt, display_ptr);

  if (*display_ptr)
    goto out;

#if GST_GL_HAVE_WINDOW_X11
  gst_query_unref (query);
  query = _gst_context_query (element, display_ptr, "gst.x11.display.handle");
  gst_query_parse_context (query, &ctxt);
  if (ctxt && gst_context_has_context_type (ctxt, "gst.x11.display.handle")) {
    const GstStructure *s;
    Display *display;

    s = gst_context_get_structure (ctxt);
    if (gst_structure_get (s, "display", G_TYPE_POINTER, &display, NULL)
        && display) {
      *display_ptr =
          (GstGLDisplay *) gst_gl_display_x11_new_with_display (display);
    }
  }

  if (*display_ptr)
    goto out;
#endif

out:
  gst_query_unref (query);
}

Exemplo n.º 3

Arquivo: gstglutils.c Projeto: ego5710/gst-plugins-bad

static void
gst_gl_context_query (GstElement * element, GstGLContext ** context_ptr)
{
  GstContext *ctxt;
  GstQuery *query;

#ifndef GST_DISABLE_GST_DEBUG
  if (!GST_CAT_CONTEXT)
    GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
#endif

  query = _gst_context_query (element, context_ptr, "gst.gl.app_context");
  gst_query_parse_context (query, &ctxt);
  if (ctxt && gst_context_has_context_type (ctxt, "gst.gl.app_context")) {
    const GstStructure *s = gst_context_get_structure (ctxt);
    gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, context_ptr, NULL);
  }

  gst_query_unref (query);
}

Exemplo n.º 4

Arquivo: gstvaapivideocontext.c Projeto: GStreamer/gstreamer-vaapi

gboolean
gst_vaapi_video_context_prepare (GstElement * element,
    GstVaapiDisplay ** display_ptr)
{
  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.
   */
  if (*display_ptr) {
    GST_LOG_OBJECT (element, "already have a display (%p)", *display_ptr);
    return TRUE;
  }

  _gst_context_query (element, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME);

  if (*display_ptr)
    GST_LOG_OBJECT (element, "found a display (%p)", *display_ptr);

  return *display_ptr != NULL;
}

Exemplo n.º 5

Arquivo: gstglutils.c Projeto: thaytan/gst-plugins-base

static void
gst_gl_context_query (GstElement * element)
{
  _gst_context_query (element, "gst.gl.app_context");
}