C++ (Cpp) gst_vaapi_video_context_new_with_display Exemples

Exemple #1

Fichier : gstvaapipluginutil.c Projet : DarkLighters/gstreamer-vaapi

gboolean
gst_vaapi_handle_context_query (GstQuery * query, GstVaapiDisplay * display)
{
  const gchar *type = NULL;
  GstContext *context, *old_context;

  g_return_val_if_fail (query != NULL, FALSE);

  if (!display)
    return FALSE;

  if (!gst_query_parse_context_type (query, &type))
    return FALSE;

  if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
    return FALSE;

  gst_query_parse_context (query, &old_context);
  if (old_context) {
    context = gst_context_copy (old_context);
    gst_vaapi_video_context_set_display (context, display);
  } else {
    context = gst_vaapi_video_context_new_with_display (display, FALSE);
  }

  gst_query_set_context (query, context);
  gst_context_unref (context);

  return TRUE;
}

Exemple #2

Fichier : gstvaapivideocontext.c Projet : GStreamer/gstreamer-vaapi

/* 5) Create a context by itself and post a GST_MESSAGE_HAVE_CONTEXT message
      on the bus. */
void
gst_vaapi_video_context_propagate (GstElement * element,
    GstVaapiDisplay * display)
{
  GstContext *context;
  GstMessage *msg;

  context = gst_vaapi_video_context_new_with_display (display, FALSE);
  gst_element_set_context (element, context);

  _init_context_debug ();
  GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
      "posting `have-context' (%p) message with display (%p)",
      context, display);
  msg = gst_message_new_have_context (GST_OBJECT_CAST (element), context);
  gst_element_post_message (GST_ELEMENT_CAST (element), msg);
}

Exemple #3

Fichier : gstvaapipluginutil.c Projet : ceyusa/gstreamer-vaapi

gboolean
gst_vaapi_handle_context_query (GstElement * element, GstQuery * query)
{
  GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element);
  const gchar *type = NULL;
  GstContext *context, *old_context;

  g_return_val_if_fail (query != NULL, FALSE);

#if USE_GST_GL_HELPERS
  if (plugin->gl_display && plugin->gl_context && plugin->gl_other_context) {
    if (gst_gl_handle_context_query (element, query,
            (GstGLDisplay *) plugin->gl_display,
            (GstGLContext *) plugin->gl_context,
            (GstGLContext *) plugin->gl_other_context))
      return TRUE;
  }
#endif

  if (!plugin->display)
    return FALSE;

  if (!gst_query_parse_context_type (query, &type))
    return FALSE;

  if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
    return FALSE;

  gst_query_parse_context (query, &old_context);
  if (old_context) {
    context = gst_context_copy (old_context);
    gst_vaapi_video_context_set_display (context, plugin->display);
  } else {
    context = gst_vaapi_video_context_new_with_display (plugin->display, FALSE);
  }

  gst_query_set_context (query, context);
  gst_context_unref (context);

  return TRUE;
}

Exemple #4

Fichier : gstvaapipluginutil.c Projet : MartinSherburn/gstreamer-vaapi

gboolean
gst_vaapi_reply_to_query (GstQuery * query, GstVaapiDisplay * display)
{
  const gchar *type = NULL;
  GstContext *context;

  if (GST_QUERY_TYPE (query) != GST_QUERY_CONTEXT)
    return FALSE;

  if (!display)
    return FALSE;

  if (!gst_query_parse_context_type (query, &type))
    return FALSE;

  if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
    return FALSE;

  context = gst_vaapi_video_context_new_with_display (display, FALSE);
  gst_query_set_context (query, context);
  gst_context_unref (context);

  return TRUE;
}