mirror of https://git.ffmpeg.org/ffmpeg.git
268 lines
7.9 KiB
C
268 lines
7.9 KiB
C
/*
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* Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
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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_DWT_H
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#define AVCODEC_DWT_H
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#include <stdint.h>
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typedef int DWTELEM;
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typedef short IDWTELEM;
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#define MAX_DWT_SUPPORT 8
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#define MAX_DECOMPOSITIONS 8
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typedef struct {
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IDWTELEM *b[MAX_DWT_SUPPORT];
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IDWTELEM *b0;
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IDWTELEM *b1;
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IDWTELEM *b2;
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IDWTELEM *b3;
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int y;
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} DWTCompose;
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/** Used to minimize the amount of memory used in order to
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* optimize cache performance. **/
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typedef struct slice_buffer_s {
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IDWTELEM **line; ///< For use by idwt and predict_slices.
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IDWTELEM **data_stack; ///< Used for internal purposes.
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int data_stack_top;
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int line_count;
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int line_width;
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int data_count;
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IDWTELEM *base_buffer; ///< Buffer that this structure is caching.
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} slice_buffer;
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struct DWTContext;
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// Possible prototypes for vertical_compose functions
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typedef void (*vertical_compose_2tap)(IDWTELEM *b0, IDWTELEM *b1, int width);
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typedef void (*vertical_compose_3tap)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width);
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typedef void (*vertical_compose_5tap)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width);
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typedef void (*vertical_compose_9tap)(IDWTELEM *dst, IDWTELEM *b[8], int width);
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typedef struct DWTContext {
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IDWTELEM *buffer;
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IDWTELEM *temp;
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int width;
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int height;
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int stride;
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int decomposition_count;
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int support;
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void (*spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride);
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void (*vertical_compose_l0)(void);
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void (*vertical_compose_h0)(void);
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void (*vertical_compose_l1)(void);
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void (*vertical_compose_h1)(void);
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void (*vertical_compose)(void); ///< one set of lowpass and highpass combined
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void (*horizontal_compose)(IDWTELEM *b, IDWTELEM *tmp, int width);
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void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
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IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
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int width);
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void (*horizontal_compose97i)(IDWTELEM *b, int width);
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void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride,
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uint8_t **block, int b_w, int b_h, int src_x,
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int src_y, int src_stride, slice_buffer *sb,
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int add, uint8_t *dst8);
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DWTCompose cs[MAX_DECOMPOSITIONS];
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} DWTContext;
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enum dwt_type {
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DWT_SNOW_DAUB9_7,
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DWT_SNOW_LEGALL5_3,
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DWT_DIRAC_DD9_7,
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DWT_DIRAC_LEGALL5_3,
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DWT_DIRAC_DD13_7,
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DWT_DIRAC_HAAR0,
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DWT_DIRAC_HAAR1,
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DWT_DIRAC_FIDELITY,
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DWT_DIRAC_DAUB9_7,
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DWT_NUM_TYPES
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};
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// -1 if an error occurred, e.g. the dwt_type isn't recognized
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int ff_spatial_idwt_init2(DWTContext *d, IDWTELEM *buffer, int width, int height,
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int stride, enum dwt_type type, int decomposition_count,
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IDWTELEM *temp);
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int ff_spatial_idwt2(IDWTELEM *buffer, int width, int height, int stride,
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enum dwt_type type, int decomposition_count, IDWTELEM *temp);
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void ff_spatial_idwt_slice2(DWTContext *d, int y);
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// shared stuff for simd optimiztions
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#define COMPOSE_53iL0(b0, b1, b2)\
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(b1 - ((b0 + b2 + 2) >> 2))
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#define COMPOSE_DIRAC53iH0(b0, b1, b2)\
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(b1 + ((b0 + b2 + 1) >> 1))
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#define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\
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(b2 + ((-b0 + 9*b1 + 9*b3 - b4 + 8) >> 4))
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#define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)\
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(b2 - ((-b0 + 9*b1 + 9*b3 - b4 + 16) >> 5))
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#define COMPOSE_HAARiL0(b0, b1)\
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(b0 - ((b1 + 1) >> 1))
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#define COMPOSE_HAARiH0(b0, b1)\
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(b0 + b1)
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#define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
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(b4 - ((-8*(b0+b8) + 21*(b1+b7) - 46*(b2+b6) + 161*(b3+b5) + 128) >> 8))
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#define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
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(b4 + ((-2*(b0+b8) + 10*(b1+b7) - 25*(b2+b6) + 81*(b3+b5) + 128) >> 8))
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#define COMPOSE_DAUB97iL1(b0, b1, b2)\
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(b1 - ((1817*(b0 + b2) + 2048) >> 12))
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#define COMPOSE_DAUB97iH1(b0, b1, b2)\
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(b1 - (( 113*(b0 + b2) + 64) >> 7))
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#define COMPOSE_DAUB97iL0(b0, b1, b2)\
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(b1 + (( 217*(b0 + b2) + 2048) >> 12))
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#define COMPOSE_DAUB97iH0(b0, b1, b2)\
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(b1 + ((6497*(b0 + b2) + 2048) >> 12))
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#define DWT_97 0
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#define DWT_53 1
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#define liftS lift
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#if 1
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#define W_AM 3
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#define W_AO 0
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#define W_AS 1
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#undef liftS
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#define W_BM 1
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#define W_BO 8
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#define W_BS 4
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#define W_CM 1
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#define W_CO 0
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#define W_CS 0
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#define W_DM 3
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#define W_DO 4
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#define W_DS 3
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#elif 0
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#define W_AM 55
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#define W_AO 16
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#define W_AS 5
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#define W_BM 3
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#define W_BO 32
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#define W_BS 6
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#define W_CM 127
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#define W_CO 64
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#define W_CS 7
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#define W_DM 7
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#define W_DO 8
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#define W_DS 4
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#elif 0
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#define W_AM 97
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#define W_AO 32
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#define W_AS 6
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#define W_BM 63
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#define W_BO 512
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#define W_BS 10
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#define W_CM 13
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#define W_CO 8
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#define W_CS 4
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#define W_DM 15
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#define W_DO 16
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#define W_DS 5
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#else
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#define W_AM 203
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#define W_AO 64
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#define W_AS 7
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#define W_BM 217
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#define W_BO 2048
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#define W_BS 12
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#define W_CM 113
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#define W_CO 64
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#define W_CS 7
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#define W_DM 227
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#define W_DO 128
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#define W_DS 9
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#endif
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#define slice_buffer_get_line(slice_buf, line_num) \
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((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] \
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: ff_slice_buffer_load_line((slice_buf), \
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(line_num)))
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int ff_slice_buffer_init(slice_buffer *buf, int line_count,
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int max_allocated_lines, int line_width,
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IDWTELEM *base_buffer);
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void ff_slice_buffer_release(slice_buffer *buf, int line);
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void ff_slice_buffer_flush(slice_buffer *buf);
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void ff_slice_buffer_destroy(slice_buffer *buf);
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IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line);
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void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
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IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
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int width);
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void ff_snow_horizontal_compose97i(IDWTELEM *b, int width);
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void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride,
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uint8_t **block, int b_w, int b_h, int src_x,
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int src_y, int src_stride, slice_buffer *sb,
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int add, uint8_t *dst8);
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int ff_w53_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
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int ff_w97_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
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void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type,
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int decomposition_count);
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void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width,
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int height, int stride_line, int type,
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int decomposition_count);
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void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs,
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slice_buffer *slice_buf, int width,
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int height, int stride_line, int type,
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int decomposition_count, int y);
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void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride,
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int type, int decomposition_count);
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void ff_dwt_init(DWTContext *c);
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void ff_dwt_init_x86(DWTContext *c);
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#endif /* AVCODEC_DWT_H */
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