diff options
| -rw-r--r-- | vp9/encoder/vp9_encoder.c | 50 |
1 files changed, 45 insertions, 5 deletions
diff --git a/vp9/encoder/vp9_encoder.c b/vp9/encoder/vp9_encoder.c index e210d10dc..b8c86ea43 100644 --- a/vp9/encoder/vp9_encoder.c +++ b/vp9/encoder/vp9_encoder.c @@ -6153,10 +6153,48 @@ static double get_mv_dist(int mv_mode, VP9_COMP *cpi, MACROBLOCKD *xd, } } -static double get_mv_cost(int mv_mode) { - // TODO(angiebird): Implement this function. - (void)mv_mode; - return 0; +static int get_mv_mode_cost(int mv_mode) { + // TODO(angiebird): The probabilities are roughly inferred from + // default_inter_mode_probs. Check if there is a better way to set the + // probabilities. + const int zero_mv_prob = 9; + const int new_mv_prob = 77; + const int ref_mv_prob = 170; + assert(zero_mv_prob + new_mv_prob + ref_mv_prob == 256); + switch (mv_mode) { + case ZERO_MV_MODE: return vp9_prob_cost[zero_mv_prob]; break; + case NEW_MV_MODE: return vp9_prob_cost[new_mv_prob]; break; + case NEAREST_MV_MODE: return vp9_prob_cost[ref_mv_prob]; break; + case NEAR_MV_MODE: return vp9_prob_cost[ref_mv_prob]; break; + default: assert(0); return -1; + } +} + +static INLINE double get_mv_diff_cost(MV *new_mv, MV *ref_mv) { + double mv_diff_cost = log2(1 + abs(new_mv->row - ref_mv->row)) + + log2(1 + abs(new_mv->col - ref_mv->col)); + mv_diff_cost *= (1 << VP9_PROB_COST_SHIFT); + return mv_diff_cost; +} +static double get_mv_cost(int mv_mode, VP9_COMP *cpi, TplDepFrame *tpl_frame, + int rf_idx, BLOCK_SIZE bsize, int mi_row, + int mi_col) { + double mv_cost = get_mv_mode_cost(mv_mode); + if (mv_mode == NEW_MV_MODE) { + MV new_mv = get_mv_from_mv_mode(mv_mode, cpi, tpl_frame, rf_idx, bsize, + mi_row, mi_col) + .as_mv; + MV nearest_mv = get_mv_from_mv_mode(NEAREST_MV_MODE, cpi, tpl_frame, rf_idx, + bsize, mi_row, mi_col) + .as_mv; + MV near_mv = get_mv_from_mv_mode(NEAR_MV_MODE, cpi, tpl_frame, rf_idx, + bsize, mi_row, mi_col) + .as_mv; + double nearest_cost = get_mv_diff_cost(&new_mv, &nearest_mv); + double near_cost = get_mv_diff_cost(&new_mv, &near_mv); + mv_cost += nearest_cost < near_cost ? nearest_cost : near_cost; + } + return mv_cost; } static double rd_cost(int rdmult, int rddiv, double rate, double dist) { @@ -6170,7 +6208,9 @@ static double eval_mv_mode(int mv_mode, VP9_COMP *cpi, MACROBLOCK *x, MACROBLOCKD *xd = &x->e_mbd; double mv_dist = get_mv_dist(mv_mode, cpi, xd, gf_picture, frame_idx, tpl_frame, rf_idx, bsize, mi_row, mi_col, mv); - double mv_cost = get_mv_cost(mv_mode); + double mv_cost = + get_mv_cost(mv_mode, cpi, tpl_frame, rf_idx, bsize, mi_row, mi_col); + return rd_cost(x->rdmult, x->rddiv, mv_cost, mv_dist); } |