diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
index 843510979ad8eab76ca014ada078af8b28dd345f..86f0a7134365c3240f4ac0d3a17979ef6f733ace 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
@@ -1224,6 +1224,8 @@ static void vb2ops_vdec_buf_queue(struct vb2_buffer *vb)
 	ctx->dpb_size = dpbsize;
 	ctx->state = MTK_STATE_HEADER;
 	mtk_v4l2_debug(1, "[%d] dpbsize=%d", ctx->id, ctx->dpb_size);
+
+	mtk_vdec_queue_res_chg_event(ctx);
 }
 
 static void vb2ops_vdec_buf_finish(struct vb2_buffer *vb)