/* * Copyright (C) 2010 David Conrad * Copyright (C) 2010 Ronald S. Bultje * * This file is part of Libav. * * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * VP8 compatible video decoder */ #ifndef AVCODEC_VP8DSP_H #define AVCODEC_VP8DSP_H #include <stddef.h> #include <stdint.h> typedef void (*vp8_mc_func)(uint8_t *dst/*align 8*/, ptrdiff_t dstStride, uint8_t *src/*align 1*/, ptrdiff_t srcStride, int h, int x, int y); typedef struct VP8DSPContext { void (*vp8_luma_dc_wht)(int16_t block[4][4][16], int16_t dc[16]); void (*vp8_luma_dc_wht_dc)(int16_t block[4][4][16], int16_t dc[16]); void (*vp8_idct_add)(uint8_t *dst, int16_t block[16], ptrdiff_t stride); void (*vp8_idct_dc_add)(uint8_t *dst, int16_t block[16], ptrdiff_t stride); void (*vp8_idct_dc_add4y)(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride); void (*vp8_idct_dc_add4uv)(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride); // loop filter applied to edges between macroblocks void (*vp8_v_loop_filter16y)(uint8_t *dst, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_h_loop_filter16y)(uint8_t *dst, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_v_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_h_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); // loop filter applied to inner macroblock edges void (*vp8_v_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_h_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_v_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_h_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride, int flim_E, int flim_I, int hev_thresh); void (*vp8_v_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim); void (*vp8_h_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim); /** * first dimension: width>>3, height is assumed equal to width * second dimension: 0 if no vertical interpolation is needed; * 1 4-tap vertical interpolation filter (my & 1) * 2 6-tap vertical interpolation filter (!(my & 1)) * third dimension: same as second dimension, for horizontal interpolation * so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my) */ vp8_mc_func put_vp8_epel_pixels_tab[3][3][3]; vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3]; } VP8DSPContext; void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y); void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y); void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y); void ff_vp8dsp_init(VP8DSPContext *c); void ff_vp8dsp_init_x86(VP8DSPContext *c); void ff_vp8dsp_init_altivec(VP8DSPContext *c); void ff_vp8dsp_init_arm(VP8DSPContext *c); #endif /* AVCODEC_VP8DSP_H */