diff --git a/video/out/vo_gpu_next.c b/video/out/vo_gpu_next.c
index dce804818b90e..4687d3d39d905 100644
--- a/video/out/vo_gpu_next.c
+++ b/video/out/vo_gpu_next.c
@@ -594,7 +594,7 @@ static bool map_frame(pl_gpu gpu, pl_tex *tex, const struct pl_source_frame *src
                       struct pl_frame *frame)
 {
     struct mp_image *mpi = src->frame_data;
-    const struct mp_image_params *par = &mpi->params;
+    struct mp_image_params par = mpi->params;
     struct frame_priv *fp = mpi->priv;
     struct vo *vo = fp->vo;
     struct priv *p = vo->priv;
@@ -610,23 +610,25 @@ static bool map_frame(pl_gpu gpu, pl_tex *tex, const struct pl_source_frame *src
             return false;
         }
 
-        par = &p->hwdec_mapper->dst_params;
+        par = p->hwdec_mapper->dst_params;
     }
 
+    mp_image_params_guess_csp(&par);
+
     *frame = (struct pl_frame) {
-        .color = par->color,
-        .repr = par->repr,
+        .color = par.color,
+        .repr = par.repr,
         .profile = {
             .data = mpi->icc_profile ? mpi->icc_profile->data : NULL,
             .len = mpi->icc_profile ? mpi->icc_profile->size : 0,
         },
-        .rotation = par->rotate / 90,
+        .rotation = par.rotate / 90,
         .user_data = mpi,
     };
 
     if (fp->hwdec) {
 
-        struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(par->imgfmt);
+        struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(par.imgfmt);
         frame->acquire = hwdec_acquire;
         frame->release = hwdec_release;
         frame->num_planes = desc.num_planes;
@@ -686,7 +688,7 @@ static bool map_frame(pl_gpu gpu, pl_tex *tex, const struct pl_source_frame *src
     }
 
     // Update chroma location, must be done after initializing planes
-    pl_frame_set_chroma_location(frame, par->chroma_location);
+    pl_frame_set_chroma_location(frame, par.chroma_location);
 
     if (mpi->film_grain)
         pl_film_grain_from_av(&frame->film_grain, (AVFilmGrainParams *) mpi->film_grain->data);