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FFmpeg/libavcodec/hevcdsp.h

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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_arm(HEVCDSPContext *c, const int bit_depth);

  119. void ff_hevc_dsp_init_ppc(HEVCDSPContext *c, const int bit_depth);

  120. void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth);

  121. 

  122. extern const int16_t ff_hevc_epel_coeffs[7][16];

  123. extern const int8_t ff_hevc_epel_coeffs8[7][16];

  124. extern const int16_t ff_hevc_qpel_coeffs[3][8];

  125. extern const int8_t ff_hevc_qpel_coeffs8[3][16];

  126. 

  127. #endif /* AVCODEC_HEVCDSP_H */