Example #1
0
/**
 * gst_context_is_persistent:
 * @context: The #GstContext.
 *
 * Check if @context is persistent.
 *
 * Returns: %TRUE if the context is persistent.
 *
 * Since: 1.2
 */
gboolean
gst_context_is_persistent (const GstContext * context)
{
  g_return_val_if_fail (GST_IS_CONTEXT (context), FALSE);

  return context->persistent;
}
Example #2
0
/**
 * gst_context_get_structure:
 * @context: The #GstContext.
 *
 * Access the structure of the context.
 *
 * Returns: (transfer none): The structure of the context. The structure is
 * still owned by the context, which means that you should not modify it,
 * free it and that the pointer becomes invalid when you free the context.
 *
 * Since: 1.2
 */
const GstStructure *
gst_context_get_structure (const GstContext * context)
{
  g_return_val_if_fail (GST_IS_CONTEXT (context), NULL);

  return GST_CONTEXT_STRUCTURE (context);
}
Example #3
0
/**
 * gst_context_get_context_type:
 * @context: The #GstContext.
 *
 * Get the type of @context.
 *
 * Returns: The type of the context.
 *
 * Since: 1.2
 */
const gchar *
gst_context_get_context_type (const GstContext * context)
{
  g_return_val_if_fail (GST_IS_CONTEXT (context), NULL);

  return context->context_type;
}
Example #4
0
/**
 * gst_context_writable_structure:
 * @context: The #GstContext.
 *
 * Get a writable version of the structure.
 *
 * Returns: The structure of the context. The structure is still
 * owned by the context, which means that you should not free it and
 * that the pointer becomes invalid when you free the context.
 * This function checks if @context is writable.
 *
 * Since: 1.2
 */
GstStructure *
gst_context_writable_structure (GstContext * context)
{
  g_return_val_if_fail (GST_IS_CONTEXT (context), NULL);
  g_return_val_if_fail (gst_context_is_writable (context), NULL);

  return GST_CONTEXT_STRUCTURE (context);
}
Example #5
0
/**
 * gst_context_has_context_type:
 * @context: The #GstContext.
 * @context_type: Context type to check.
 *
 * Checks if @context has @context_type.
 *
 * Returns: %TRUE if @context has @context_type.
 *
 * Since: 1.2
 */
gboolean
gst_context_has_context_type (const GstContext * context,
    const gchar * context_type)
{
  g_return_val_if_fail (GST_IS_CONTEXT (context), FALSE);
  g_return_val_if_fail (context_type != NULL, FALSE);

  return strcmp (context->context_type, context_type) == 0;
}
Example #6
0
gboolean
gst_vaapi_video_context_get_display (GstContext * context,
    GstVaapiDisplay ** display_ptr)
{
  const GstStructure *structure;

  g_return_val_if_fail (GST_IS_CONTEXT (context), FALSE);
  g_return_val_if_fail (g_strcmp0 (gst_context_get_context_type (context),
          GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME) == 0, FALSE);

  structure = gst_context_get_structure (context);
  return gst_structure_get (structure, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME,
      GST_TYPE_VAAPI_DISPLAY, display_ptr, NULL);
}