2 files changed, 15 insertions, 0 deletions
diff --git a/video/mp_image.c b/video/mp_image.c
index b5780b08a0..f846b0d3d3 100644
--- a/video/mp_image.c
+++ b/video/mp_image.c
@@ -265,6 +265,19 @@ struct mp_image *mp_image_alloc(int imgfmt, int w, int h)
     return mpi;
 }
 
+int mp_image_approx_byte_size(struct mp_image *img)
+{
+    int total = sizeof(*img);
+
+    for (int n = 0; n < MP_MAX_PLANES; n++) {
+        struct AVBufferRef *buf = img->bufs[n];
+        if (buf)
+            total += buf->size;
+    }
+
+    return total;
+}
+
 struct mp_image *mp_image_new_copy(struct mp_image *img)
 {
     struct mp_image *new = mp_image_alloc(img->imgfmt, img->w, img->h);
diff --git a/video/mp_image.h b/video/mp_image.h
index d321a27285..4727ed6f8d 100644
--- a/video/mp_image.h
+++ b/video/mp_image.h
@@ -163,6 +163,8 @@ void mp_image_setfmt(mp_image_t* mpi, int out_fmt);
 void mp_image_steal_data(struct mp_image *dst, struct mp_image *src);
 void mp_image_unref_data(struct mp_image *img);
 
+int mp_image_approx_byte_size(struct mp_image *img);
+
 struct mp_image *mp_image_new_dummy_ref(struct mp_image *img);
 struct mp_image *mp_image_new_custom_ref(struct mp_image *img, void *arg,
                                          void (*free)(void *arg));