repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (C) 2012 Ronald S. Bultje | |
| 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 | * Core video DSP helper functions | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef AVCODEC_VIDEODSP_H | |
| 27 | #define AVCODEC_VIDEODSP_H | |
| 28 | ||
| 29 | #include <stddef.h> | |
| 30 | #include <stdint.h> | |
| 31 | ||
| 32 | #define EMULATED_EDGE(depth) \ | |
| 33 | void ff_emulated_edge_mc_ ## depth(uint8_t *dst, const uint8_t *src, \ | |
| 34 | ptrdiff_t dst_stride, ptrdiff_t src_stride, \ | |
| 35 | int block_w, int block_h,\ | |
| 36 | int src_x, int src_y, int w, int h); | |
| 37 | ||
| 38 | EMULATED_EDGE(8) | |
| 39 | EMULATED_EDGE(16) | |
| 40 | ||
| 41 | typedef struct VideoDSPContext { | |
| 42 | /** | |
| 43 | * Copy a rectangular area of samples to a temporary buffer and replicate | |
| 44 | * the border samples. | |
| 45 | * | |
| 46 | * @param dst destination buffer | |
| 47 | * @param dst_stride number of bytes between 2 vertically adjacent samples | |
| 48 | * in destination buffer | |
| 49 | * @param src source buffer | |
| 50 | * @param dst_linesize number of bytes between 2 vertically adjacent | |
| 51 | * samples in the destination buffer | |
| 52 | * @param src_linesize number of bytes between 2 vertically adjacent | |
| 53 | * samples in both the source buffer | |
| 54 | * @param block_w width of block | |
| 55 | * @param block_h height of block | |
| 56 | * @param src_x x coordinate of the top left sample of the block in the | |
| 57 | * source buffer | |
| 58 | * @param src_y y coordinate of the top left sample of the block in the | |
| 59 | * source buffer | |
| 60 | * @param w width of the source buffer | |
| 61 | * @param h height of the source buffer | |
| 62 | */ | |
| 63 | void (*emulated_edge_mc)(uint8_t *dst, const uint8_t *src, | |
| 64 | ptrdiff_t dst_linesize, | |
| 65 | ptrdiff_t src_linesize, | |
| 66 | int block_w, int block_h, | |
| 67 | int src_x, int src_y, int w, int h); | |
| 68 | ||
| 69 | /** | |
| 70 | * Prefetch memory into cache (if supported by hardware). | |
| 71 | * | |
| 72 | * @param buf pointer to buffer to prefetch memory from | |
| 73 | * @param stride distance between two lines of buf (in bytes) | |
| 74 | * @param h number of lines to prefetch | |
| 75 | */ | |
| 76 | void (*prefetch)(uint8_t *buf, ptrdiff_t stride, int h); | |
| 77 | } VideoDSPContext; | |
| 78 | ||
| 79 | void ff_videodsp_init(VideoDSPContext *ctx, int bpc); | |
| 80 | ||
| 81 | /* for internal use only (i.e. called by ff_videodsp_init() */ | |
| 82 | void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc); | |
| 83 | void ff_videodsp_init_arm(VideoDSPContext *ctx, int bpc); | |
| 84 | void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc); | |
| 85 | void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc); | |
| 86 | ||
| 87 | #endif /* AVCODEC_VIDEODSP_H */ |