* Get the name of an AVFilterPad.
*
* @param pads an array of AVFilterPads
- * @param pad_idx index of the pad in the array it; is the caller's
+ * @param pad_idx index of the pad in the array; it is the caller's
* responsibility to ensure the index is valid
*
* @return name of the pad_idx'th pad in pads
/**
* Create and add a filter instance into an existing graph.
* The filter instance is created from the filter filt and inited
- * with the parameters args and opaque.
+ * with the parameter args. opaque is currently ignored.
*
* In case of success put in *filt_ctx the pointer to the created
* filter instance, otherwise set *filt_ctx to NULL.