/**
* 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;
}
void BufferListIterator::replace(const BufferPtr & other)
{
gst_buffer_list_iterator_take(m_it, gst_buffer_ref(other));
}
