354 static void set_coef(void *ctx, RK_S32 *coef, RK_S32 val)  in set_coef()  argument
362         *coef = val + 0;  in set_coef()
365             *coef = val + 10;  in set_coef()
367             *coef = val + 25;  in set_coef()
370             *coef = val + 25;  in set_coef()
372             *coef = val + 35;  in set_coef()
375             *coef = val + 35;  in set_coef()
377             *coef = val + 51;  in set_coef()
381                 *coef = val + 35;  in set_coef()
383                 *coef = val + 51;  in set_coef()
385             *coef = val + 64;  in set_coef()
389                 *coef = val + 64;  in set_coef()
391                 *coef = val + 72;  in set_coef()
393             *coef = val + 72;  in set_coef()
395         *coef = val + 80;  in set_coef()
630     RK_S32 coef = 1024;  in smt_calc_coef()  local
637         set_coef(ctx, &coef, 0);  in smt_calc_coef()
640             set_coef(ctx, &coef, 102);  in smt_calc_coef()
642             set_coef(ctx, &coef, 154);  in smt_calc_coef()
645             set_coef(ctx, &coef, 154);  in smt_calc_coef()
648                 set_coef(ctx, &coef, 205);  in smt_calc_coef()
650                 set_coef(ctx, &coef, 256);  in smt_calc_coef()
652                 set_coef(ctx, &coef, 307);  in smt_calc_coef()
654             set_coef(ctx, &coef, 307);  in smt_calc_coef()
658                 set_coef(ctx, &coef, 307);  in smt_calc_coef()
660                 set_coef(ctx, &coef, 358);  in smt_calc_coef()
662                 set_coef(ctx, &coef, 410);  in smt_calc_coef()
665                 set_coef(ctx, &coef, 358);  in smt_calc_coef()
667                 set_coef(ctx, &coef, 410);  in smt_calc_coef()
669                 set_coef(ctx, &coef, 461);  in smt_calc_coef()
671             set_coef(ctx, &coef, 461);  in smt_calc_coef()
675                 set_coef(ctx, &coef, 410);  in smt_calc_coef()
677                 set_coef(ctx, &coef, 461);  in smt_calc_coef()
679                 set_coef(ctx, &coef, 512);  in smt_calc_coef()
682                 set_coef(ctx, &coef, 512);  in smt_calc_coef()
684                 set_coef(ctx, &coef, 563);  in smt_calc_coef()
686                 set_coef(ctx, &coef, 614);  in smt_calc_coef()
688             set_coef(ctx, &coef, 614);  in smt_calc_coef()
690         set_coef(ctx, &coef, 666);  in smt_calc_coef()
692         set_coef(ctx, &coef, 768);  in smt_calc_coef()
694         set_coef(ctx, &coef, 900);  in smt_calc_coef()
696     if (coef > 1024)  in smt_calc_coef()
697         coef = 1024;  in smt_calc_coef()
699     if (coef >= 900)  in smt_calc_coef()
701     else if (coef >= 307)    // 0.7~0.3 --> 1.0~0.5  in smt_calc_coef()
702         coef2 = 512 + (coef - 307) * (1024 - 512) / (717 - 307);  in smt_calc_coef()
704         coef2 = 0 + coef * (512 - 0) / (307 - 0);  in smt_calc_coef()
772     RK_S32 coef = smt_calc_coef(p);  in derive_pframe_qp_by_bitrate()  local
780     bits_target_use = ((RK_S64)m_tbr * coef + (RK_S64)p->bits_tgt_lower * 1024) >> 10;  in derive_pframe_qp_by_bitrate()
781     pre_diff_bit_use = ((RK_S64)m_dbr * coef + (RK_S64)p->pre_diff_bit_lower * 1024) >> 10;  in derive_pframe_qp_by_bitrate()
789               p->frm_num, bits_target_use, m_tbr, coef, p->bits_tgt_lower,  in derive_pframe_qp_by_bitrate()
815         pre_diff_bit_use = ((RK_S64)m_dbr * coef + (RK_S64)p->pre_diff_bit_lower * 1024) >> 10;  in derive_pframe_qp_by_bitrate()
818         coef += pre_diff_bit_use <= 2 * bits_target_use ? 205 :  in derive_pframe_qp_by_bitrate()
821         if (coef >= 1024 || qp_out > LOW_LOW_QP)  in derive_pframe_qp_by_bitrate()
822             coef = 1024;  in derive_pframe_qp_by_bitrate()
824                   p->frm_num, pre_diff_bit_use, bits_target_use, coef);  in derive_pframe_qp_by_bitrate()
826         pre_diff_bit_use = ((RK_S64)m_dbr * coef + (RK_S64)p->pre_diff_bit_lower * 1024) >> 10;  in derive_pframe_qp_by_bitrate()
827         bits_target_use = ((RK_S64)m_tbr * coef + (RK_S64)p->bits_tgt_lower * 1024) >> 10;  in derive_pframe_qp_by_bitrate()