/* * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at> * * 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 */ #ifndef AVCODEC_DWT_H #define AVCODEC_DWT_H #include <stdint.h> typedef int DWTELEM; typedef short IDWTELEM; typedef struct { IDWTELEM *b0; IDWTELEM *b1; IDWTELEM *b2; IDWTELEM *b3; int y; } DWTCompose; /** Used to minimize the amount of memory used in order to optimize cache performance. **/ typedef struct slice_buffer_s { IDWTELEM * * line; ///< For use by idwt and predict_slices. IDWTELEM * * data_stack; ///< Used for internal purposes. int data_stack_top; int line_count; int line_width; int data_count; IDWTELEM * base_buffer; ///< Buffer that this structure is caching. } slice_buffer; typedef struct DWTContext { void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width); void (*horizontal_compose97i)(IDWTELEM *b, int width); void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8); } DWTContext; #define MAX_DECOMPOSITIONS 8 #define DWT_97 0 #define DWT_53 1 #define liftS lift #if 1 #define W_AM 3 #define W_AO 0 #define W_AS 1 #undef liftS #define W_BM 1 #define W_BO 8 #define W_BS 4 #define W_CM 1 #define W_CO 0 #define W_CS 0 #define W_DM 3 #define W_DO 4 #define W_DS 3 #elif 0 #define W_AM 55 #define W_AO 16 #define W_AS 5 #define W_BM 3 #define W_BO 32 #define W_BS 6 #define W_CM 127 #define W_CO 64 #define W_CS 7 #define W_DM 7 #define W_DO 8 #define W_DS 4 #elif 0 #define W_AM 97 #define W_AO 32 #define W_AS 6 #define W_BM 63 #define W_BO 512 #define W_BS 10 #define W_CM 13 #define W_CO 8 #define W_CS 4 #define W_DM 15 #define W_DO 16 #define W_DS 5 #else #define W_AM 203 #define W_AO 64 #define W_AS 7 #define W_BM 217 #define W_BO 2048 #define W_BS 12 #define W_CM 113 #define W_CO 64 #define W_CS 7 #define W_DM 227 #define W_DO 128 #define W_DS 9 #endif #define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : ff_slice_buffer_load_line((slice_buf), (line_num))) //#define slice_buffer_get_line(slice_buf, line_num) (ff_slice_buffer_load_line((slice_buf), (line_num))) void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer); void ff_slice_buffer_release(slice_buffer * buf, int line); void ff_slice_buffer_flush(slice_buffer * buf); void ff_slice_buffer_destroy(slice_buffer * buf); IDWTELEM * ff_slice_buffer_load_line(slice_buffer * buf, int line); void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width); void ff_snow_horizontal_compose97i(IDWTELEM *b, int width); void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8); int ff_w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h); int ff_w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h); void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count); void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count); void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs, slice_buffer * slice_buf, int width, int height, int stride_line, int type, int decomposition_count, int y); void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count); void ff_dwt_init(DWTContext *c); void ff_dwt_init_x86(DWTContext *c); #endif /* AVCODEC_DWT_H */