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   1 /*
   2  * HEVC video decoder
   3  *
   4  * Copyright (C) 2012 - 2013 Guillaume Martres
   5  *
   6  * This file is part of Libav.
   7  *
   8  * Libav is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * Libav is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with Libav; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #ifndef AVCODEC_HEVCDSP_H
  24 #define AVCODEC_HEVCDSP_H
  25
  26 #include "get_bits.h"
  27
  28 typedef struct SAOParams {
  29     int offset_abs[3][4];   ///< sao_offset_abs
  30     int offset_sign[3][4];  ///< sao_offset_sign
  31
  32     int band_position[3];   ///< sao_band_position
  33
  34     int eo_class[3];        ///< sao_eo_class
  35
  36     int offset_val[3][5];   ///<SaoOffsetVal
  37
  38     uint8_t type_idx[3];    ///< sao_type_idx
  39 } SAOParams;
  40
  41 typedef struct HEVCDSPContext {
  42     void (*put_pcm)(uint8_t *dst, ptrdiff_t stride, int size,
  43                     GetBitContext *gb, int pcm_bit_depth);
  44
  45     void (*transquant_bypass[4])(uint8_t *dst, int16_t *coeffs,
  46                                  ptrdiff_t stride);
  47
  48     void (*transform_skip)(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
  49     void (*transform_4x4_luma_add)(uint8_t *dst, int16_t *coeffs,
  50                                    ptrdiff_t stride);
  51     void (*transform_add[4])(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
  52
  53     void (*sao_band_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  54                                struct SAOParams *sao, int *borders,
  55                                int width, int height, int c_idx);
  56     void (*sao_edge_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  57                                struct SAOParams *sao, int *borders, int width,
  58                                int height, int c_idx, uint8_t vert_edge,
  59                                uint8_t horiz_edge, uint8_t diag_edge);
  60
  61     void (*put_hevc_qpel[4][4])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
  62                                 ptrdiff_t srcstride, int width, int height,
  63                                 int16_t *mcbuffer);
  64     void (*put_hevc_epel[2][2])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
  65                                 ptrdiff_t srcstride, int width, int height,
  66                                 int mx, int my, int16_t *mcbuffer);
  67
  68     void (*put_unweighted_pred)(uint8_t *dst, ptrdiff_t dststride, int16_t *src,
  69                                 ptrdiff_t srcstride, int width, int height);
  70     void (*put_unweighted_pred_avg)(uint8_t *dst, ptrdiff_t dststride,
  71                                     int16_t *src1, int16_t *src2,
  72                                     ptrdiff_t srcstride, int width, int height);
  73     void (*weighted_pred)(uint8_t denom, int16_t wlxFlag, int16_t olxFlag,
  74                           uint8_t *dst, ptrdiff_t dststride, int16_t *src,
  75                           ptrdiff_t srcstride, int width, int height);
  76     void (*weighted_pred_avg)(uint8_t denom, int16_t wl0Flag, int16_t wl1Flag,
  77                               int16_t ol0Flag, int16_t ol1Flag, uint8_t *dst,
  78                               ptrdiff_t dststride, int16_t *src1, int16_t *src2,
  79                               ptrdiff_t srcstride, int width, int height);
  80
  81     void (*hevc_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
  82                                     int beta, int *tc,
  83                                     uint8_t *no_p, uint8_t *no_q);
  84     void (*hevc_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
  85                                     int beta, int *tc,
  86                                     uint8_t *no_p, uint8_t *no_q);
  87     void (*hevc_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
  88                                       int *tc, uint8_t *no_p, uint8_t *no_q);
  89     void (*hevc_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
  90                                       int *tc, uint8_t *no_p, uint8_t *no_q);
  91     void (*hevc_h_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
  92                                       int beta, int *tc,
  93                                       uint8_t *no_p, uint8_t *no_q);
  94     void (*hevc_v_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
  95                                       int beta, int *tc,
  96                                       uint8_t *no_p, uint8_t *no_q);
  97     void (*hevc_h_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
  98                                         int *tc, uint8_t *no_p,
  99                                         uint8_t *no_q);
 100     void (*hevc_v_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
 101                                         int *tc, uint8_t *no_p,
 102                                         uint8_t *no_q);
 103 } HEVCDSPContext;
 104
 105 void ff_hevc_dsp_init(HEVCDSPContext *hpc, int bit_depth);
 106
 107 void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth);
 108
 109 extern const int8_t ff_hevc_epel_filters[7][16];
 110
 111 #endif /* AVCODEC_HEVCDSP_H */