2 * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
3 * Copyright (C) 2006 Robert Edele <yartrebo@earthlink.net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #define MAX_DECOMPOSITIONS 8
30 #define QROOT (1<<QSHIFT)
31 #define LOSSLESS_QLOG -128
34 #define LOG2_OBMC_MAX 6
35 #define OBMC_MAX (1<<(LOG2_OBMC_MAX))
37 /** Used to minimize the amount of memory used in order to optimize cache performance. **/
38 struct slice_buffer_s {
39 DWTELEM * * line; ///< For use by idwt and predict_slices.
40 DWTELEM * * data_stack; ///< Used for internal purposes.
45 DWTELEM * base_buffer; ///< Buffer that this structure is caching.
119 extern void ff_snow_vertical_compose97i(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
120 extern void ff_snow_horizontal_compose97i(DWTELEM *b, int width);
121 extern void ff_snow_inner_add_yblock(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);