ffmpeg_resize: check for owndata before frame_unref #1718

src/lib/visual-details.h

@@ -30,6 +30,7 @@ typedef struct ncvisual {
 
 static inline void
 ncvisual_set_data(ncvisual* ncv, void* data, bool owned){
+//fprintf(stderr, "replacing %p with %p (%u -> %u)\n", ncv->data, data, ncv->owndata, owned);
   if(ncv->owndata){
     if(data != ncv->data){
       free(ncv->data);

src/media/ffmpeg.c

@@ -526,8 +526,9 @@ int ffmpeg_resize(ncvisual* n, int rows, int cols){
   n->rowstride = sframe->linesize[0];
   n->pixy = rows;
   n->pixx = cols;
-//fprintf(stderr, "SETTING UP RESIZE %p\n", n->data);
-  av_frame_unref(n->details->frame);
+  if(n->owndata){
+    av_frame_unref(n->details->frame);
+  }
   ncvisual_set_data(n, sframe->data[0], true);
   n->details->frame = sframe;
 //fprintf(stderr, "SIZE SCALED: %d %d (%u)\n", n->details->frame->height, n->details->frame->width, n->details->frame->linesize[0]);