ncvisual_set_data: handle incoming data equivalent to existing data

src/lib/visual-details.h

@@ -30,7 +30,9 @@ typedef struct ncvisual {
 static inline void
 ncvisual_set_data(ncvisual* ncv, void* data, bool owned){
   if(ncv->owndata){
-    free(ncv->data);
+    if(data != ncv->data){
+      free(ncv->data);
+    }
   }
   ncv->data = (uint32_t*)data;
   ncv->owndata = owned;

src/media/ffmpeg.c

@@ -244,9 +244,12 @@ int ffmpeg_resize(ncvisual* n, int rows, int cols){
   n->rowstride = sframe->linesize[0];
   n->pixy = rows;
   n->pixx = cols;
-  ncvisual_set_data(n, sframe->data[0], false);
-  if(n->details->frame){
-    av_freep(&n->details->frame);
+  if((uint32_t*)sframe->data[0] != n->data){
+//fprintf(stderr, "SETTING UP RESIZE %p\n", n->data);
+    ncvisual_set_data(n, sframe->data[0], false);
+    if(n->details->frame){
+      av_freep(&n->details->frame);
+    }
   }
   n->details->frame = sframe;