2 * Copyright (C) 2010 David Conrad
3 * Copyright (C) 2010 Ronald S. Bultje
5 * This file is part of FFmpeg.
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.
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.
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
24 * VP8 compatible video decoder
27 #ifndef AVCODEC_VP8DSP_H
28 #define AVCODEC_VP8DSP_H
32 typedef void (*vp8_mc_func)(uint8_t *dst/*align 8*/, int dstStride, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
34 typedef struct VP8DSPContext {
35 void (*vp8_luma_dc_wht)(DCTELEM block[4][4][16], DCTELEM dc[16]);
36 void (*vp8_luma_dc_wht_dc)(DCTELEM block[4][4][16], DCTELEM dc[16]);
37 void (*vp8_idct_add)(uint8_t *dst, DCTELEM block[16], int stride);
38 void (*vp8_idct_dc_add)(uint8_t *dst, DCTELEM block[16], int stride);
39 void (*vp8_idct_dc_add4y)(uint8_t *dst, DCTELEM block[4][16], int stride);
40 void (*vp8_idct_dc_add4uv)(uint8_t *dst, DCTELEM block[4][16], int stride);
42 // loop filter applied to edges between macroblocks
43 void (*vp8_v_loop_filter16y)(uint8_t *dst, int stride,
44 int flim_E, int flim_I, int hev_thresh);
45 void (*vp8_h_loop_filter16y)(uint8_t *dst, int stride,
46 int flim_E, int flim_I, int hev_thresh);
47 void (*vp8_v_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, int stride,
48 int flim_E, int flim_I, int hev_thresh);
49 void (*vp8_h_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, int stride,
50 int flim_E, int flim_I, int hev_thresh);
52 // loop filter applied to inner macroblock edges
53 void (*vp8_v_loop_filter16y_inner)(uint8_t *dst, int stride,
54 int flim_E, int flim_I, int hev_thresh);
55 void (*vp8_h_loop_filter16y_inner)(uint8_t *dst, int stride,
56 int flim_E, int flim_I, int hev_thresh);
57 void (*vp8_v_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV, int stride,
58 int flim_E, int flim_I, int hev_thresh);
59 void (*vp8_h_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV, int stride,
60 int flim_E, int flim_I, int hev_thresh);
62 void (*vp8_v_loop_filter_simple)(uint8_t *dst, int stride, int flim);
63 void (*vp8_h_loop_filter_simple)(uint8_t *dst, int stride, int flim);
66 * first dimension: width>>3, height is assumed equal to width
67 * second dimension: 0 if no vertical interpolation is needed;
68 * 1 4-tap vertical interpolation filter (my & 1)
69 * 2 6-tap vertical interpolation filter (!(my & 1))
70 * third dimension: same as second dimention, for horizontal interpolation
71 * so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
73 vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];
74 vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3];
77 void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
78 void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
79 void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
81 void ff_vp8dsp_init(VP8DSPContext *c);
82 void ff_vp8dsp_init_x86(VP8DSPContext *c);
83 void ff_vp8dsp_init_altivec(VP8DSPContext *c);
84 void ff_vp8dsp_init_arm(VP8DSPContext *c);
86 #endif /* AVCODEC_VP8DSP_H */