* @param s The read-only AVIOContext to rewind
* @param buf The probe buffer containing the first buf_size bytes of the file
* @param buf_size The size of buf
- * @return 0 in case of success, a negative value corresponding to an
+ * @return >= 0 in case of success, a negative value corresponding to an
* AVERROR code in case of failure
*/
int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char **buf, int buf_size);
*
* @param s Used to return the pointer to the created AVIOContext.
* In case of failure the pointed to value is set to NULL.
- * @return 0 in case of success, a negative value corresponding to an
+ * @return >= 0 in case of success, a negative value corresponding to an
* AVERROR code in case of failure
*/
int ffio_fdopen(AVIOContext **s, URLContext *h);