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 const 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 */, ptrdiff_t stride, 51 int h); 52 53 typedef struct MECmpContext { 54 int (*sum_abs_dctelem)(int16_t *block /* align 16 */); 55 56 me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */ 57 me_cmp_func sse[6]; 58 me_cmp_func hadamard8_diff[6]; 59 me_cmp_func dct_sad[6]; 60 me_cmp_func quant_psnr[6]; 61 me_cmp_func bit[6]; 62 me_cmp_func rd[6]; 63 me_cmp_func vsad[6]; 64 me_cmp_func vsse[6]; 65 me_cmp_func nsse[6]; 66 me_cmp_func w53[6]; 67 me_cmp_func w97[6]; 68 me_cmp_func dct_max[6]; 69 me_cmp_func dct264_sad[6]; 70 71 me_cmp_func me_pre_cmp[6]; 72 me_cmp_func me_cmp[6]; 73 me_cmp_func me_sub_cmp[6]; 74 me_cmp_func mb_cmp[6]; 75 me_cmp_func ildct_cmp[6]; // only width 16 used 76 me_cmp_func frame_skip_cmp[6]; // only width 8 used 77 78 me_cmp_func pix_abs[2][4]; 79 me_cmp_func median_sad[6]; 80 } MECmpContext; 81 82 void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx); 83 void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx); 84 void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx); 85 void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx); 86 void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx); 87 void ff_me_cmp_init_mips(MECmpContext *c, AVCodecContext *avctx); 88 89 void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type); 90 91 void ff_dsputil_init_dwt(MECmpContext *c); 92 93 #endif /* AVCODEC_ME_CMP_H */ 94