repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * thirdpel DSP functions | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | /** | |
| 22 | * @file | |
| 23 | * thirdpel DSP functions | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef AVCODEC_TPELDSP_H | |
| 27 | #define AVCODEC_TPELDSP_H | |
| 28 | ||
| 29 | #include <stdint.h> | |
| 30 | ||
| 31 | /* add and put pixel (decoding) */ | |
| 32 | // blocksizes for hpel_pixels_func are 8x4,8x8 16x8 16x16 | |
| 33 | // h for hpel_pixels_func is limited to {width/2, width} but never larger | |
| 34 | // than 16 and never smaller than 4 | |
| 35 | typedef void (*tpel_mc_func)(uint8_t *block /* align width (8 or 16) */, | |
| 36 | const uint8_t *pixels /* align 1 */, | |
| 37 | int line_size, int w, int h); | |
| 38 | ||
| 39 | /** | |
| 40 | * thirdpel DSP context | |
| 41 | */ | |
| 42 | typedef struct TpelDSPContext { | |
| 43 | /** | |
| 44 | * Thirdpel motion compensation with rounding (a + b + 1) >> 1. | |
| 45 | * this is an array[12] of motion compensation functions for the | |
| 46 | * 9 thirdpel positions<br> | |
| 47 | * *pixels_tab[xthirdpel + 4 * ythirdpel] | |
| 48 | * @param block destination where the result is stored | |
| 49 | * @param pixels source | |
| 50 | * @param line_size number of bytes in a horizontal line of block | |
| 51 | * @param h height | |
| 52 | */ | |
| 53 | tpel_mc_func put_tpel_pixels_tab[11]; // FIXME individual func ptr per width? | |
| 54 | tpel_mc_func avg_tpel_pixels_tab[11]; // FIXME individual func ptr per width? | |
| 55 | } TpelDSPContext; | |
| 56 | ||
| 57 | void ff_tpeldsp_init(TpelDSPContext *c); | |
| 58 | ||
| 59 | #endif /* AVCODEC_TPELDSP_H */ |