V4L2_AV1_REF_LAST3_FRAME
val = rockchip_vpu981_av1_dec_get_dist(ctx, rf, oh[V4L2_AV1_REF_LAST3_FRAME]);
val = rockchip_vpu981_av1_dec_get_dist(ctx, rf, oh[V4L2_AV1_REF_LAST3_FRAME]);
val = rockchip_vpu981_av1_dec_get_dist(ctx, rf, oh[V4L2_AV1_REF_LAST3_FRAME]);
frame->global_motion.type[V4L2_AV1_REF_LAST3_FRAME]);
#define LST3_BUF_IDX (V4L2_AV1_REF_LAST3_FRAME - V4L2_AV1_REF_LAST_FRAME)
#define LAST3_BUF_IDX (V4L2_AV1_REF_LAST3_FRAME - V4L2_AV1_REF_LAST_FRAME)