2 * Copyright (C) 2010 David Conrad
3 * Copyright (C) 2010 Ronald S. Bultje
5 * This file is part of Libav.
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.
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.
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
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*/, ptrdiff_t dstStride,
33 uint8_t *src/*align 1*/, ptrdiff_t srcStride,
36 typedef struct VP8DSPContext {
37 void (*vp8_luma_dc_wht)(DCTELEM block[4][4][16], DCTELEM dc[16]);
38 void (*vp8_luma_dc_wht_dc)(DCTELEM block[4][4][16], DCTELEM dc[16]);
39 void (*vp8_idct_add)(uint8_t *dst, DCTELEM block[16], ptrdiff_t stride);
40 void (*vp8_idct_dc_add)(uint8_t *dst, DCTELEM block[16], ptrdiff_t stride);
41 void (*vp8_idct_dc_add4y)(uint8_t *dst, DCTELEM block[4][16],
43 void (*vp8_idct_dc_add4uv)(uint8_t *dst, DCTELEM block[4][16],
46 // loop filter applied to edges between macroblocks
47 void (*vp8_v_loop_filter16y)(uint8_t *dst, ptrdiff_t stride,
48 int flim_E, int flim_I, int hev_thresh);
49 void (*vp8_h_loop_filter16y)(uint8_t *dst, ptrdiff_t stride,
50 int flim_E, int flim_I, int hev_thresh);
51 void (*vp8_v_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,
52 int flim_E, int flim_I, int hev_thresh);
53 void (*vp8_h_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,
54 int flim_E, int flim_I, int hev_thresh);
56 // loop filter applied to inner macroblock edges
57 void (*vp8_v_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride,
58 int flim_E, int flim_I, int hev_thresh);
59 void (*vp8_h_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride,
60 int flim_E, int flim_I, int hev_thresh);
61 void (*vp8_v_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV,
63 int flim_E, int flim_I, int hev_thresh);
64 void (*vp8_h_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV,
66 int flim_E, int flim_I, int hev_thresh);
68 void (*vp8_v_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);
69 void (*vp8_h_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);
72 * first dimension: width>>3, height is assumed equal to width
73 * second dimension: 0 if no vertical interpolation is needed;
74 * 1 4-tap vertical interpolation filter (my & 1)
75 * 2 6-tap vertical interpolation filter (!(my & 1))
76 * third dimension: same as second dimention, for horizontal interpolation
77 * so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
79 vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];
80 vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3];
83 void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
85 void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
87 void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
90 void ff_vp8dsp_init(VP8DSPContext *c);
91 void ff_vp8dsp_init_x86(VP8DSPContext *c);
92 void ff_vp8dsp_init_altivec(VP8DSPContext *c);
93 void ff_vp8dsp_init_arm(VP8DSPContext *c);
95 #endif /* AVCODEC_VP8DSP_H */