* line sizes will be set. If a planar format is specified, several
* pointers will be set pointing to the different picture planes and
* the line sizes of the different planes will be stored in the
- * lines_sizes array. Call with src == NULL to get the required
+ * lines_sizes array. Call with !src to get the required
* size for the src buffer.
*
* To allocate the buffer and fill in the dst_data and dst_linesize in