/***************************************************************************** * Copyright (C) 2013 x265 project * * Authors: Steve Borho * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. * * This program is also available under a commercial proprietary license. * For more information, contact us at license @ x265.com. *****************************************************************************/ #ifndef X265_BITCOST_H #define X265_BITCOST_H #include "common.h" #include "threading.h" #include "mv.h" namespace X265_NS { // private x265 namespace class BitCost { public: BitCost() : m_cost_mvx(0), m_cost_mvy(0), m_cost(0), m_mvp(0) {} void setQP(unsigned int qp); void setMVP(const MV& mvp) { m_mvp = mvp; m_cost_mvx = m_cost - mvp.x; m_cost_mvy = m_cost - mvp.y; } // return bit cost of motion vector difference, multiplied by lambda inline uint16_t mvcost(const MV& mv) const { return m_cost_mvx[mv.x] + m_cost_mvy[mv.y]; } // return bit cost of motion vector difference, without lambda inline uint32_t bitcost(const MV& mv) const { return (uint32_t)(s_bitsizes[abs(mv.x - m_mvp.x)] + s_bitsizes[abs(mv.y - m_mvp.y)] + 0.5f); } static inline uint32_t bitcost(const MV& mv, const MV& mvp) { return (uint32_t)(s_bitsizes[abs(mv.x - mvp.x)] + s_bitsizes[abs(mv.y - mvp.y)] + 0.5f); } static void destroy(); protected: uint16_t *m_cost_mvx; uint16_t *m_cost_mvy; uint16_t *m_cost; MV m_mvp; BitCost& operator =(const BitCost&); private: /* default log2_max_mv_length_horizontal and log2_max_mv_length_horizontal * are 15, specified in quarter-pel luma sample units. making the maximum * signaled ful-pel motion distance 4096, max qpel is 32768 */ enum { BC_MAX_MV = (1 << 15) }; enum { BC_MAX_QP = 82 }; static float *s_bitsizes; static uint16_t *s_costs[BC_MAX_QP]; static Lock s_costCalcLock; static void CalculateLogs(); }; } #endif // ifndef X265_BITCOST_H