зеркало из https://github.com/mozilla/gecko-dev.git
97 строки
3.2 KiB
C
97 строки
3.2 KiB
C
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_ME_CMP_H
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#define AVCODEC_ME_CMP_H
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#include <stdint.h>
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#include "avcodec.h"
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extern uint32_t ff_square_tab[512];
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/* minimum alignment rules ;)
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* If you notice errors in the align stuff, need more alignment for some ASM code
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* for some CPU or need to use a function with less aligned data then send a mail
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* to the ffmpeg-devel mailing list, ...
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*
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* !warning These alignments might not match reality, (missing attribute((align))
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* stuff somewhere possible).
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* I (Michael) did not check them, these are just the alignments which I think
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* could be reached easily ...
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*
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* !future video codecs might need functions with less strict alignment
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*/
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struct MpegEncContext;
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/* Motion estimation:
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* h is limited to { width / 2, width, 2 * width },
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* but never larger than 16 and never smaller than 2.
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* Although currently h < 4 is not used as functions with
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* width < 8 are neither used nor implemented. */
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typedef int (*me_cmp_func)(struct MpegEncContext *c,
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uint8_t *blk1 /* align width (8 or 16) */,
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uint8_t *blk2 /* align 1 */, ptrdiff_t stride,
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int h);
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typedef struct MECmpContext {
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int (*sum_abs_dctelem)(int16_t *block /* align 16 */);
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me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */
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me_cmp_func sse[6];
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me_cmp_func hadamard8_diff[6];
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me_cmp_func dct_sad[6];
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me_cmp_func quant_psnr[6];
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me_cmp_func bit[6];
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me_cmp_func rd[6];
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me_cmp_func vsad[6];
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me_cmp_func vsse[6];
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me_cmp_func nsse[6];
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me_cmp_func w53[6];
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me_cmp_func w97[6];
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me_cmp_func dct_max[6];
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me_cmp_func dct264_sad[6];
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me_cmp_func me_pre_cmp[6];
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me_cmp_func me_cmp[6];
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me_cmp_func me_sub_cmp[6];
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me_cmp_func mb_cmp[6];
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me_cmp_func ildct_cmp[6]; // only width 16 used
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me_cmp_func frame_skip_cmp[6]; // only width 8 used
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me_cmp_func pix_abs[2][4];
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} MECmpContext;
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void ff_me_cmp_init_static(void);
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int ff_check_alignment(void);
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void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx);
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void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx);
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void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx);
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void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx);
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void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx);
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void ff_me_cmp_init_mips(MECmpContext *c, AVCodecContext *avctx);
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void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type);
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void ff_dsputil_init_dwt(MECmpContext *c);
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#endif /* AVCODEC_ME_CMP_H */
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