| 1 | /* |
| 2 | * Copyright (C) 2010 David Conrad |
| 3 | * Copyright (C) 2010 Ronald S. Bultje |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg 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 | * FFmpeg 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 FFmpeg; 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: width>>3, height is assumed equal to 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[width>>3][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_arm(VP8DSPContext *c); |
| 95 | void ff_vp78dsp_init_ppc(VP8DSPContext *c); |
| 96 | void ff_vp78dsp_init_x86(VP8DSPContext *c); |
| 97 | |
| 98 | void ff_vp8dsp_init(VP8DSPContext *c); |
| 99 | void ff_vp8dsp_init_arm(VP8DSPContext *c); |
| 100 | void ff_vp8dsp_init_x86(VP8DSPContext *c); |
| 101 | |
| 102 | #define IS_VP7 1 |
| 103 | #define IS_VP8 0 |
| 104 | |
| 105 | #endif /* AVCODEC_VP8DSP_H */ |