diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 2d36475cae..11c2a4f681 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -3165,16 +3165,6 @@ void sws_freeContext(SwsContext *c){
     av_free(c);
 }
 
-/**
- * Checks if context is valid or reallocs a new one instead.
- * If context is NULL, just calls sws_getContext() to get a new one.
- * Otherwise, checks if the parameters are the ones already saved in context.
- * If that is the case, returns the current context.
- * Otherwise, frees context and gets a new one.
- *
- * Be warned that srcFilter, dstFilter are not checked, they are
- * asumed to remain valid.
- */
 struct SwsContext *sws_getCachedContext(struct SwsContext *context,
                                         int srcW, int srcH, enum PixelFormat srcFormat,
                                         int dstW, int dstH, enum PixelFormat dstFormat, int flags,
diff --git a/libswscale/swscale.h b/libswscale/swscale.h
index 53e4489fdf..dbc1cd5c0e 100644
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@@ -149,6 +149,16 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
                                 int verbose);
 void sws_freeFilter(SwsFilter *filter);
 
+/**
+ * Checks if context is valid or reallocs a new one instead.
+ * If context is NULL, just calls sws_getContext() to get a new one.
+ * Otherwise, checks if the parameters are the ones already saved in context.
+ * If that is the case, returns the current context.
+ * Otherwise, frees context and gets a new one.
+ *
+ * Be warned that srcFilter, dstFilter are not checked, they are
+ * asumed to remain valid.
+ */
 struct SwsContext *sws_getCachedContext(struct SwsContext *context,
                                         int srcW, int srcH, enum PixelFormat srcFormat,
                                         int dstW, int dstH, enum PixelFormat dstFormat, int flags,