Exemplo n.º 1
0
/**
 * gst_buffer_list_insert:
 * @list: a #GstBufferList
 * @idx: the index
 * @buffer: (transfer full): a #GstBuffer
 *
 * Insert @buffer at @idx in @list. Other buffers are moved to make room for
 * this new buffer.
 *
 * A -1 value for @idx will append the buffer at the end.
 */
void
gst_buffer_list_insert (GstBufferList * list, gint idx, GstBuffer * buffer)
{
  guint want_alloc;

  g_return_if_fail (GST_IS_BUFFER_LIST (list));
  g_return_if_fail (buffer != NULL);
  g_return_if_fail (gst_buffer_list_is_writable (list));

  if (idx == -1 && list->n_buffers < list->n_allocated) {
    list->buffers[list->n_buffers++] = buffer;
    return;
  }

  if (idx == -1 || idx > list->n_buffers)
    idx = list->n_buffers;

  want_alloc = list->n_buffers + 1;

  if (want_alloc > list->n_allocated) {
    want_alloc = MAX (GST_ROUND_UP_16 (want_alloc), list->n_allocated * 2);

    if (GST_BUFFER_LIST_IS_USING_DYNAMIC_ARRAY (list)) {
      list->buffers = g_renew (GstBuffer *, list->buffers, want_alloc);
    } else {
Exemplo n.º 2
0
/**
 * gst_buffer_list_iterator_do:
 * @it: a #GstBufferListIterator
 * @do_func: the function to be called
 * @user_data: the gpointer to optional user data.
 *
 * Calls the given function for the last buffer returned by
 * gst_buffer_list_iterator_next(). gst_buffer_list_iterator_next() must have
 * been called on @it before this function is called.
 * gst_buffer_list_iterator_remove() and gst_buffer_list_iterator_steal() must
 * not have been called since the last call to gst_buffer_list_iterator_next().
 *
 * See #GstBufferListDoFunction for more details.
 *
 * Returns: the return value from @do_func
 *
 * Since: 0.10.24
 */
GstBuffer *
gst_buffer_list_iterator_do (GstBufferListIterator * it,
    GstBufferListDoFunction do_func, gpointer user_data)
{
  GstBuffer *buffer;

  g_return_val_if_fail (it != NULL, NULL);
  g_return_val_if_fail (it->last_returned != NULL, NULL);
  g_return_val_if_fail (it->last_returned->data != STOLEN, NULL);
  g_return_val_if_fail (do_func != NULL, NULL);
  g_return_val_if_fail (gst_buffer_list_is_writable (it->list), NULL);
  g_assert (it->last_returned->data != GROUP_START);

  buffer = gst_buffer_list_iterator_steal (it);
  buffer = do_func (buffer, user_data);
  if (buffer == NULL) {
    gst_buffer_list_iterator_remove (it);
  } else {
    gst_buffer_list_iterator_take (it, buffer);
  }

  return buffer;
}