| 1 | /* |
| 2 | * This file is part of FFmpeg. |
| 3 | * |
| 4 | * FFmpeg is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * FFmpeg is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public |
| 15 | * License along with FFmpeg; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | #ifndef AVCODEC_ME_CMP_H |
| 20 | #define AVCODEC_ME_CMP_H |
| 21 | |
| 22 | #include <stdint.h> |
| 23 | |
| 24 | #include "avcodec.h" |
| 25 | |
| 26 | extern uint32_t ff_square_tab[512]; |
| 27 | |
| 28 | |
| 29 | /* minimum alignment rules ;) |
| 30 | * If you notice errors in the align stuff, need more alignment for some ASM code |
| 31 | * for some CPU or need to use a function with less aligned data then send a mail |
| 32 | * to the ffmpeg-devel mailing list, ... |
| 33 | * |
| 34 | * !warning These alignments might not match reality, (missing attribute((align)) |
| 35 | * stuff somewhere possible). |
| 36 | * I (Michael) did not check them, these are just the alignments which I think |
| 37 | * could be reached easily ... |
| 38 | * |
| 39 | * !future video codecs might need functions with less strict alignment |
| 40 | */ |
| 41 | |
| 42 | struct MpegEncContext; |
| 43 | /* Motion estimation: |
| 44 | * h is limited to { width / 2, width, 2 * width }, |
| 45 | * but never larger than 16 and never smaller than 2. |
| 46 | * Although currently h < 4 is not used as functions with |
| 47 | * width < 8 are neither used nor implemented. */ |
| 48 | typedef int (*me_cmp_func)(struct MpegEncContext *c, |
| 49 | uint8_t *blk1 /* align width (8 or 16) */, |
| 50 | uint8_t *blk2 /* align 1 */, int line_size, int h); |
| 51 | |
| 52 | typedef struct MECmpContext { |
| 53 | int (*sum_abs_dctelem)(int16_t *block /* align 16 */); |
| 54 | |
| 55 | me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */ |
| 56 | me_cmp_func sse[6]; |
| 57 | me_cmp_func hadamard8_diff[6]; |
| 58 | me_cmp_func dct_sad[6]; |
| 59 | me_cmp_func quant_psnr[6]; |
| 60 | me_cmp_func bit[6]; |
| 61 | me_cmp_func rd[6]; |
| 62 | me_cmp_func vsad[6]; |
| 63 | me_cmp_func vsse[6]; |
| 64 | me_cmp_func nsse[6]; |
| 65 | me_cmp_func w53[6]; |
| 66 | me_cmp_func w97[6]; |
| 67 | me_cmp_func dct_max[6]; |
| 68 | me_cmp_func dct264_sad[6]; |
| 69 | |
| 70 | me_cmp_func me_pre_cmp[6]; |
| 71 | me_cmp_func me_cmp[6]; |
| 72 | me_cmp_func me_sub_cmp[6]; |
| 73 | me_cmp_func mb_cmp[6]; |
| 74 | me_cmp_func ildct_cmp[6]; // only width 16 used |
| 75 | me_cmp_func frame_skip_cmp[6]; // only width 8 used |
| 76 | |
| 77 | me_cmp_func pix_abs[2][4]; |
| 78 | } MECmpContext; |
| 79 | |
| 80 | void ff_me_cmp_init_static(void); |
| 81 | |
| 82 | int ff_check_alignment(void); |
| 83 | |
| 84 | void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx); |
| 85 | void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx); |
| 86 | void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx); |
| 87 | void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx); |
| 88 | void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx); |
| 89 | |
| 90 | void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type); |
| 91 | |
| 92 | void ff_dsputil_init_dwt(MECmpContext *c); |
| 93 | |
| 94 | #endif /* AVCODEC_ME_CMP_H */ |