libavcodec/vp8dsp.h

   1 /*
   2  * Copyright (C) 2010 David Conrad
   3  * Copyright (C) 2010 Ronald S. Bultje
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * Libav is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with Libav; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 /**
  23  * @file
  24  * VP8 compatible video decoder
  25  */
  26
  27 #ifndef AVCODEC_VP8DSP_H
  28 #define AVCODEC_VP8DSP_H
  29
  30 #include <stddef.h>
  31 #include <stdint.h>
  32
  33 typedef void (*vp8_mc_func)(uint8_t *dst /* align 8 */, ptrdiff_t dstStride,
  34                             uint8_t *src /* align 1 */, ptrdiff_t srcStride,
  35                             int h, int x, int y);
  36
  37 typedef struct VP8DSPContext {
  38     void (*vp8_luma_dc_wht)(int16_t block[4][4][16], int16_t dc[16]);
  39     void (*vp8_luma_dc_wht_dc)(int16_t block[4][4][16], int16_t dc[16]);
  40     void (*vp8_idct_add)(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
  41     void (*vp8_idct_dc_add)(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
  42     void (*vp8_idct_dc_add4y)(uint8_t *dst, int16_t block[4][16],
  43                               ptrdiff_t stride);
  44     void (*vp8_idct_dc_add4uv)(uint8_t *dst, int16_t block[4][16],
  45                                ptrdiff_t stride);
  46
  47     // loop filter applied to edges between macroblocks
  48     void (*vp8_v_loop_filter16y)(uint8_t *dst, ptrdiff_t stride,
  49                                  int flim_E, int flim_I, int hev_thresh);
  50     void (*vp8_h_loop_filter16y)(uint8_t *dst, ptrdiff_t stride,
  51                                  int flim_E, int flim_I, int hev_thresh);
  52     void (*vp8_v_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,
  53                                  int flim_E, int flim_I, int hev_thresh);
  54     void (*vp8_h_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,
  55                                  int flim_E, int flim_I, int hev_thresh);
  56
  57     // loop filter applied to inner macroblock edges
  58     void (*vp8_v_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride,
  59                                        int flim_E, int flim_I, int hev_thresh);
  60     void (*vp8_h_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride,
  61                                        int flim_E, int flim_I, int hev_thresh);
  62     void (*vp8_v_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV,
  63                                        ptrdiff_t stride,
  64                                        int flim_E, int flim_I, int hev_thresh);
  65     void (*vp8_h_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV,
  66                                        ptrdiff_t stride,
  67                                        int flim_E, int flim_I, int hev_thresh);
  68
  69     void (*vp8_v_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);
  70     void (*vp8_h_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);
  71
  72     /**
  73      * first dimension: 4-log2(width)
  74      * second dimension: 0 if no vertical interpolation is needed;
  75      *                   1 4-tap vertical interpolation filter (my & 1)
  76      *                   2 6-tap vertical interpolation filter (!(my & 1))
  77      * third dimension: same as second dimension, for horizontal interpolation
  78      * so something like put_vp8_epel_pixels_tab[4-log2(width)][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
  79      */
  80     vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];
  81     vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3];
  82 } VP8DSPContext;
  83
  84 void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  85                            int h, int x, int y);
  86 void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  87                           int h, int x, int y);
  88 void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
  89                           int h, int x, int y);
  90
  91 void ff_vp7dsp_init(VP8DSPContext *c);
  92
  93 void ff_vp78dsp_init(VP8DSPContext *c);
  94 void ff_vp78dsp_init_aarch64(VP8DSPContext *c);
  95 void ff_vp78dsp_init_arm(VP8DSPContext *c);
  96 void ff_vp78dsp_init_ppc(VP8DSPContext *c);
  97 void ff_vp78dsp_init_x86(VP8DSPContext *c);
  98
  99 void ff_vp8dsp_init(VP8DSPContext *c);
 100 void ff_vp8dsp_init_aarch64(VP8DSPContext *c);
 101 void ff_vp8dsp_init_arm(VP8DSPContext *c);
 102 void ff_vp8dsp_init_x86(VP8DSPContext *c);
 103
 104 #define IS_VP7 1
 105 #define IS_VP8 0
 106
 107 #endif /* AVCODEC_VP8DSP_H */