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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 (*add_residual[4])(uint8_t *dst, int16_t *res, ptrdiff_t stride);
  46
  47     void (*dequant)(int16_t *coeffs);
  48     void (*transform_4x4_luma)(int16_t *coeffs);
  49     void (*idct[4])(int16_t *coeffs, int col_limit);
  50     void (*idct_dc[4])(int16_t *coeffs);
  51
  52     void (*sao_band_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  53                                struct SAOParams *sao, int *borders,
  54                                int width, int height, int c_idx);
  55     void (*sao_edge_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  56                                struct SAOParams *sao, int *borders, int width,
  57                                int height, int c_idx, uint8_t vert_edge,
  58                                uint8_t horiz_edge, uint8_t diag_edge);
  59
  60     void (*put_hevc_qpel[2][2][8])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
  61                                    ptrdiff_t srcstride, int height,
  62                                    int mx, int my, int16_t *mcbuffer);
  63     void (*put_hevc_epel[2][2][8])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
  64                                    ptrdiff_t srcstride, int height,
  65                                    int mx, int my, int16_t *mcbuffer);
  66
  67     void (*put_unweighted_pred[8])(uint8_t *dst, ptrdiff_t dststride, int16_t *src,
  68                                    ptrdiff_t srcstride, int height);
  69     void (*put_unweighted_pred_chroma[8])(uint8_t *dst, ptrdiff_t dststride, int16_t *src,
  70                                           ptrdiff_t srcstride, int height);
  71     void (*put_unweighted_pred_avg[8])(uint8_t *dst, ptrdiff_t dststride,
  72                                        int16_t *src1, int16_t *src2,
  73                                        ptrdiff_t srcstride, int height);
  74     void (*put_unweighted_pred_avg_chroma[8])(uint8_t *dst, ptrdiff_t dststride,
  75                                               int16_t *src1, int16_t *src2,
  76                                               ptrdiff_t srcstride, int height);
  77     void (*weighted_pred[8])(uint8_t denom, int16_t wlxFlag, int16_t olxFlag,
  78                              uint8_t *dst, ptrdiff_t dststride, int16_t *src,
  79                              ptrdiff_t srcstride, int height);
  80     void (*weighted_pred_chroma[8])(uint8_t denom, int16_t wlxFlag, int16_t olxFlag,
  81                                     uint8_t *dst, ptrdiff_t dststride, int16_t *src,
  82                                     ptrdiff_t srcstride, int height);
  83     void (*weighted_pred_avg[8])(uint8_t denom, int16_t wl0Flag, int16_t wl1Flag,
  84                                  int16_t ol0Flag, int16_t ol1Flag, uint8_t *dst,
  85                                  ptrdiff_t dststride, int16_t *src1, int16_t *src2,
  86                                  ptrdiff_t srcstride, int height);
  87     void (*weighted_pred_avg_chroma[8])(uint8_t denom, int16_t wl0Flag, int16_t wl1Flag,
  88                                         int16_t ol0Flag, int16_t ol1Flag, uint8_t *dst,
  89                                         ptrdiff_t dststride, int16_t *src1, int16_t *src2,
  90                                         ptrdiff_t srcstride, int height);
  91
  92     void (*hevc_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
  93                                     int beta, int *tc,
  94                                     uint8_t *no_p, uint8_t *no_q);
  95     void (*hevc_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
  96                                     int beta, int *tc,
  97                                     uint8_t *no_p, uint8_t *no_q);
  98     void (*hevc_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
  99                                       int *tc, uint8_t *no_p, uint8_t *no_q);
 100     void (*hevc_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
 101                                       int *tc, uint8_t *no_p, uint8_t *no_q);
 102     void (*hevc_h_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
 103                                       int beta, int *tc,
 104                                       uint8_t *no_p, uint8_t *no_q);
 105     void (*hevc_v_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
 106                                       int beta, int *tc,
 107                                       uint8_t *no_p, uint8_t *no_q);
 108     void (*hevc_h_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
 109                                         int *tc, uint8_t *no_p,
 110                                         uint8_t *no_q);
 111     void (*hevc_v_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
 112                                         int *tc, uint8_t *no_p,
 113                                         uint8_t *no_q);
 114 } HEVCDSPContext;
 115
 116 void ff_hevc_dsp_init(HEVCDSPContext *hpc, int bit_depth);
 117
 118 void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth);
 119
 120 extern const int16_t ff_hevc_epel_coeffs[7][16];
 121 extern const int8_t ff_hevc_epel_coeffs8[7][16];
 122 extern const int16_t ff_hevc_qpel_coeffs[3][8];
 123 extern const int8_t ff_hevc_qpel_coeffs8[3][16];
 124
 125 #endif /* AVCODEC_HEVCDSP_H */