2 * VP8 compatible video decoder
4 * Copyright (C) 2010 David Conrad
5 * Copyright (C) 2010 Ronald S. Bultje
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #ifndef AVCODEC_VP8DSP_H
26 #define AVCODEC_VP8DSP_H
30 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);
32 typedef struct VP8DSPContext {
33 void (*vp8_luma_dc_wht)(DCTELEM block[4][4][16], DCTELEM dc[16]);
34 void (*vp8_idct_add)(uint8_t *dst, DCTELEM block[16], int stride);
35 void (*vp8_idct_dc_add)(uint8_t *dst, DCTELEM block[16], int stride);
37 // loop filter applied to edges between macroblocks
38 void (*vp8_v_loop_filter16)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
39 void (*vp8_h_loop_filter16)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
40 void (*vp8_v_loop_filter8)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
41 void (*vp8_h_loop_filter8)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
43 // loop filter applied to inner macroblock edges
44 void (*vp8_v_loop_filter16_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
45 void (*vp8_h_loop_filter16_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
46 void (*vp8_v_loop_filter8_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
47 void (*vp8_h_loop_filter8_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
49 void (*vp8_v_loop_filter_simple)(uint8_t *dst, int stride, int flim);
50 void (*vp8_h_loop_filter_simple)(uint8_t *dst, int stride, int flim);
53 * first dimension: width>>3, height is assumed equal to width
54 * second dimension: 0 if no vertical interpolation is needed;
55 * 1 4-tap vertical interpolation filter (my & 1)
56 * 2 6-tap vertical interpolation filter (!(my & 1))
57 * third dimension: same as second dimention, for horizontal interpolation
58 * so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
60 vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];
61 vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3];
64 void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
65 void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
66 void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
68 void ff_vp8dsp_init(VP8DSPContext *c);
69 void ff_vp8dsp_init_x86(VP8DSPContext *c);
70 void ff_vp8dsp_init_altivec(VP8DSPContext *c);
72 #endif /* AVCODEC_VP8DSP_H */