Assign bit fields to MB_MODE_INFO struct members
Assigned bit fields to MB_MODE_INFO structure members
Observed memory footprint reduction with no impact on
encoder/decoder performance.
Stream cpu-used Encoder Decoder
BasketballDrill_832x480 1 ~0.2% ~1.2%
parkrun_720p50 3 ~0.2% ~1.4%
Change-Id: Ic4716d55cad37686e619672a8ff2a92e9c7a9e19
diff --git a/av1/common/blockd.h b/av1/common/blockd.h
index 43140eb..7c1e1e0 100644
--- a/av1/common/blockd.h
+++ b/av1/common/blockd.h
@@ -240,32 +240,32 @@
TX_TYPE txk_type[TXK_TYPE_BUF_LEN];
MV_REFERENCE_FRAME ref_frame[2];
FILTER_INTRA_MODE_INFO filter_intra_mode_info;
- int8_t use_wedge_interintra;
int8_t skip;
- int8_t skip_mode;
uint8_t inter_tx_size[INTER_TX_SIZE_BUF_LEN];
TX_SIZE tx_size;
int8_t delta_lf_from_base;
int8_t delta_lf[FRAME_LF_COUNT];
- int8_t segment_id;
- int8_t seg_id_predicted; // valid only when temporal_update is enabled
int8_t interintra_wedge_index;
- uint8_t use_intrabc;
// The actual prediction angle is the base angle + (angle_delta * step).
int8_t angle_delta[PLANE_TYPES];
/* deringing gain *per-superblock* */
- int8_t cdef_strength;
// Joint sign of alpha Cb and alpha Cr
int8_t cfl_alpha_signs;
// Index of the alpha Cb and alpha Cr combination
uint8_t cfl_alpha_idx;
- uint8_t ref_mv_idx;
- // Indicate if masked compound is used(1) or not(0).
- uint8_t comp_group_idx;
- // If comp_group_idx=0, indicate if dist_wtd_comp(0) or avg_comp(1) is used.
- uint8_t compound_idx;
uint8_t num_proj_ref;
uint8_t overlappable_neighbors[2];
+ // If comp_group_idx=0, indicate if dist_wtd_comp(0) or avg_comp(1) is used.
+ uint8_t compound_idx;
+ uint8_t use_wedge_interintra : 1;
+ uint8_t segment_id : 3;
+ uint8_t seg_id_predicted : 1; // valid only when temporal_update is enabled
+ uint8_t skip_mode : 1;
+ uint8_t use_intrabc : 1;
+ uint8_t ref_mv_idx : 2;
+ // Indicate if masked compound is used(1) or not(0).
+ uint8_t comp_group_idx : 1;
+ int8_t cdef_strength : 4;
} MB_MODE_INFO;
static INLINE int is_intrabc_block(const MB_MODE_INFO *mbmi) {
