+/**
+ * Wrap an existing array as stream side data.
+ *
+ * @param st stream
+ * @param type side information type
+ * @param data the side data array. It must be allocated with the av_malloc()
+ * family of functions. The ownership of the data is transferred to
+ * st.
+ * @param size side information size
+ * @return zero on success, a negative AVERROR code on failure. On failure,
+ * the stream is unchanged and the data remains owned by the caller.
+ */
+int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type,
+ uint8_t *data, size_t size);
+