Fix documentation for avfilter_parse_graph().

Originally committed as revision 16319 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavfilter/graphparser.h

@@ -38,10 +38,11 @@ typedef struct AVFilterInOut {
 
 /**
  * Add to a graph a graph described by a string.
+ *
  * @param graph   the filter graph where to link the parsed graph context
  * @param filters string to be parsed
- * @param inouts  linked list to the inputs and outputs of the graph
- * @param outpad  pad index of the output
+ * @param inputs  linked list to the inputs of the graph
+ * @param outputs linked list to the outputs of the graph
  * @return        zero on success, -1 on error
  */
 int avfilter_parse_graph(AVFilterGraph *graph, const char *filters,