vidsrc: use const pointer to base-class

1 files changed, 3 insertions, 4 deletions

diff --git a/modules/rst/video.c b/modules/rst/video.c
index db6bfc9..adf2495 100644
--- a/modules/rst/video.c
+++ b/modules/rst/video.c
@@ -15,7 +15,7 @@
 
 
 struct vidsrc_st {
-	struct vidsrc *vs;
+	const struct vidsrc *vs;  /* pointer to base-class (inheritance) */
 	pthread_mutex_t mutex;
 	pthread_t thread;
 	struct vidsrc_prm prm;
@@ -52,7 +52,6 @@ static void destructor(void *arg)
 		cairo_surface_destroy(st->surface);
 
 	mem_deref(st->frame);
-	mem_deref(st->vs);
 }
 
 
@@ -188,7 +187,7 @@ void rst_video_update(struct vidsrc_st *st, const char *name, const char *meta)
 }
 
 
-static int alloc_handler(struct vidsrc_st **stp, struct vidsrc *vs,
+static int alloc_handler(struct vidsrc_st **stp, const struct vidsrc *vs,
 			 struct media_ctx **ctx, struct vidsrc_prm *prm,
 			 const struct vidsz *size, const char *fmt,
 			 const char *dev, vidsrc_frame_h *frameh,
@@ -211,7 +210,7 @@ static int alloc_handler(struct vidsrc_st **stp, struct vidsrc *vs,
 	if (err)
 		goto out;
 
-	st->vs     = mem_ref(vs);
+	st->vs     = vs;
 	st->prm    = *prm;
 	st->size   = *size;
 	st->frameh = frameh;