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/*
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 * DSP utils
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 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
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 * Copyright (c) 2002-2004 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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/**
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 * @file dsputil.h
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 * DSP utils.
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 * note, many functions in here may use MMX which trashes the FPU state, it is
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 * absolutely necessary to call emms_c() between dsp & float/double code
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 */
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#ifndef FFMPEG_DSPUTIL_H
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#define FFMPEG_DSPUTIL_H
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#include "avcodec.h"
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//#define DEBUG
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/* dct code */
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typedef short DCTELEM;
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typedef int DWTELEM;
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typedef short IDWTELEM;
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void fdct_ifast (DCTELEM *data);
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void fdct_ifast248 (DCTELEM *data);
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void ff_jpeg_fdct_islow (DCTELEM *data);
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void ff_fdct248_islow (DCTELEM *data);
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void j_rev_dct (DCTELEM *data);
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void j_rev_dct4 (DCTELEM *data);
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void j_rev_dct2 (DCTELEM *data);
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void j_rev_dct1 (DCTELEM *data);
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void ff_wmv2_idct_c(DCTELEM *data);
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void ff_fdct_mmx(DCTELEM *block);
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void ff_fdct_mmx2(DCTELEM *block);
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void ff_fdct_sse2(DCTELEM *block);
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void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
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void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
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void ff_vector_fmul_add_add_c(float *dst, const float *src0, const float *src1,
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                              const float *src2, int src3, int blocksize, int step);
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void ff_float_to_int16_c(int16_t *dst, const float *src, int len);
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/* encoding scans */
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extern const uint8_t ff_alternate_horizontal_scan[64];
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extern const uint8_t ff_alternate_vertical_scan[64];
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extern const uint8_t ff_zigzag_direct[64];
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extern const uint8_t ff_zigzag248_direct[64];
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/* pixel operations */
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#define MAX_NEG_CROP 1024
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/* temporary */
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extern uint32_t ff_squareTbl[512];
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extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
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/* VP3 DSP functions */
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void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
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void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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/* 1/2^n downscaling functions from imgconvert.c */
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void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
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              int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
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/* minimum alignment rules ;)
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if u notice errors in the align stuff, need more alignment for some asm code for some cpu
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or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
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!warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
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i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
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!future video codecs might need functions with less strict alignment
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*/
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/*
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void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
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void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
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void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
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void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
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void clear_blocks_c(DCTELEM *blocks);
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*/
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/* add and put pixel (decoding) */
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// blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
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//h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
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typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
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typedef void (*tpel_mc_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int w, int h);
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typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
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typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
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typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
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typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
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#define DEF_OLD_QPEL(name)\
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void ff_put_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
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void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
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void ff_avg_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
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DEF_OLD_QPEL(qpel16_mc11_old_c)
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DEF_OLD_QPEL(qpel16_mc31_old_c)
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DEF_OLD_QPEL(qpel16_mc12_old_c)
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DEF_OLD_QPEL(qpel16_mc32_old_c)
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DEF_OLD_QPEL(qpel16_mc13_old_c)
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DEF_OLD_QPEL(qpel16_mc33_old_c)
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DEF_OLD_QPEL(qpel8_mc11_old_c)
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DEF_OLD_QPEL(qpel8_mc31_old_c)
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DEF_OLD_QPEL(qpel8_mc12_old_c)
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DEF_OLD_QPEL(qpel8_mc32_old_c)
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DEF_OLD_QPEL(qpel8_mc13_old_c)
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DEF_OLD_QPEL(qpel8_mc33_old_c)
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#define CALL_2X_PIXELS(a, b, n)\
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static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
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    b(block  , pixels  , line_size, h);\
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    b(block+n, pixels+n, line_size, h);\
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}
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/* motion estimation */
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// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
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// although currently h<4 is not used as functions with width <8 are neither used nor implemented
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typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size, int h)/* __attribute__ ((const))*/;
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// for snow slices
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typedef struct slice_buffer_s slice_buffer;
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/**
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 * Scantable.
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 */
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typedef struct ScanTable{
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    const uint8_t *scantable;
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    uint8_t permutated[64];
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    uint8_t raster_end[64];
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#ifdef ARCH_POWERPC
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                /** Used by dct_quantize_altivec to find last-non-zero */
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    DECLARE_ALIGNED(16, uint8_t, inverse[64]);
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#endif
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} ScanTable;
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void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
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/**
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 * DSPContext.
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 */
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typedef struct DSPContext {
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    /* pixel ops : interface with DCT */
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    void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
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    void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
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    void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
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    void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
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    int (*sum_abs_dctelem)(DCTELEM *block/*align 16*/);
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    /**
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     * translational global motion compensation.
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     */
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    void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
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    /**
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     * global motion compensation.
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     */
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    void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
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                    int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
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    void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
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    int (*pix_sum)(uint8_t * pix, int line_size);
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    int (*pix_norm1)(uint8_t * pix, int line_size);
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// 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
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    me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
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    me_cmp_func sse[5];
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    me_cmp_func hadamard8_diff[5];
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    me_cmp_func dct_sad[5];
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    me_cmp_func quant_psnr[5];
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    me_cmp_func bit[5];
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    me_cmp_func rd[5];
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    me_cmp_func vsad[5];
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    me_cmp_func vsse[5];
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    me_cmp_func nsse[5];
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    me_cmp_func w53[5];
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    me_cmp_func w97[5];
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    me_cmp_func dct_max[5];
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    me_cmp_func dct264_sad[5];
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    me_cmp_func me_pre_cmp[5];
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    me_cmp_func me_cmp[5];
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    me_cmp_func me_sub_cmp[5];
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    me_cmp_func mb_cmp[5];
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    me_cmp_func ildct_cmp[5]; //only width 16 used
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    me_cmp_func frame_skip_cmp[5]; //only width 8 used
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    int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2,
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                             int size);
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    /**
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     * Halfpel motion compensation with rounding (a+b+1)>>1.
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     * this is an array[4][4] of motion compensation functions for 4
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination where the result is stored
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func put_pixels_tab[4][4];
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    /**
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     * Halfpel motion compensation with rounding (a+b+1)>>1.
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     * This is an array[4][4] of motion compensation functions for 4
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination into which the result is averaged (a+b+1)>>1
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func avg_pixels_tab[4][4];
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    /**
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     * Halfpel motion compensation with no rounding (a+b)>>1.
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     * this is an array[2][4] of motion compensation functions for 2
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination where the result is stored
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func put_no_rnd_pixels_tab[4][4];
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    /**
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     * Halfpel motion compensation with no rounding (a+b)>>1.
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     * this is an array[2][4] of motion compensation functions for 2
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination into which the result is averaged (a+b)>>1
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func avg_no_rnd_pixels_tab[4][4];
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    void (*put_no_rnd_pixels_l2[2])(uint8_t *block/*align width (8 or 16)*/, const uint8_t *a/*align 1*/, const uint8_t *b/*align 1*/, int line_size, int h);
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    /**
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     * Thirdpel motion compensation with rounding (a+b+1)>>1.
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     * this is an array[12] of motion compensation functions for the 9 thirdpe
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     * positions<br>
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     * *pixels_tab[ xthirdpel + 4*ythirdpel ]
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     * @param block destination where the result is stored
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
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    tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
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    qpel_mc_func put_qpel_pixels_tab[2][16];
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    qpel_mc_func avg_qpel_pixels_tab[2][16];
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    qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
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    qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
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    qpel_mc_func put_mspel_pixels_tab[8];
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    /**
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     * h264 Chroma MC
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     */
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    h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
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    /* This is really one func used in VC-1 decoding */
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    h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];
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    h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
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    qpel_mc_func put_h264_qpel_pixels_tab[4][16];
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    qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
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    qpel_mc_func put_2tap_qpel_pixels_tab[4][16];
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    qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];
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    h264_weight_func weight_h264_pixels_tab[10];
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    h264_biweight_func biweight_h264_pixels_tab[10];
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    /* AVS specific */
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    qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
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    qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
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    void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
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    me_cmp_func pix_abs[2][4];
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    /* huffyuv specific */
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    void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
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    void (*add_bytes_l2)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 16*/, int w);
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    void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
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    /**
325
     * subtract huffyuv's variant of median prediction
326
     * note, this might read from src1[-1], src2[-1]
327
     */
328
    void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
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    /* this might write to dst[w] */
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    void (*add_png_paeth_prediction)(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp);
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    void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w);
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    void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
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    void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
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    void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
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    void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
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    void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
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    void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
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    // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
340
    void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
341
                                      int bidir, int edges, int step, int mask_mv0, int mask_mv1);
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    void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*h261_loop_filter)(uint8_t *src, int stride);
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    void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);
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    /* assume len is a multiple of 4, and arrays are 16-byte aligned */
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    void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
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    /* no alignment needed */
354
    void (*flac_compute_autocorr)(const int32_t *data, int len, int lag, double *autoc);
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    /* assume len is a multiple of 8, and arrays are 16-byte aligned */
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    void (*vector_fmul)(float *dst, const float *src, int len);
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    void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
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    /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
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    void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);
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361
    /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
362
     * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */
363
    void (*float_to_int16)(int16_t *dst, const float *src, int len);
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    /* (I)DCT */
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    void (*fdct)(DCTELEM *block/* align 16*/);
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    void (*fdct248)(DCTELEM *block/* align 16*/);
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    /* IDCT really*/
370
    void (*idct)(DCTELEM *block/* align 16*/);
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    /**
373
     * block -> idct -> clip to unsigned 8 bit -> dest.
374
     * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
375
     * @param line_size size in bytes of a horizontal line of dest
376
     */
377
    void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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379
    /**
380
     * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
381
     * @param line_size size in bytes of a horizontal line of dest
382
     */
383
    void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
384

    
385
    /**
386
     * idct input permutation.
387
     * several optimized IDCTs need a permutated input (relative to the normal order of the reference
388
     * IDCT)
389
     * this permutation must be performed before the idct_put/add, note, normally this can be merged
390
     * with the zigzag/alternate scan<br>
391
     * an example to avoid confusion:
392
     * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
393
     * - (x -> referece dct -> reference idct -> x)
394
     * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
395
     * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
396
     */
397
    uint8_t idct_permutation[64];
398
    int idct_permutation_type;
399
#define FF_NO_IDCT_PERM 1
400
#define FF_LIBMPEG2_IDCT_PERM 2
401
#define FF_SIMPLE_IDCT_PERM 3
402
#define FF_TRANSPOSE_IDCT_PERM 4
403
#define FF_PARTTRANS_IDCT_PERM 5
404

    
405
    int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
406
    void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
407
#define BASIS_SHIFT 16
408
#define RECON_SHIFT 6
409

    
410
    void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
411

    
412
    /* h264 functions */
413
    void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
414
    void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
415
    void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
416
    void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
417
    void (*h264_dct)(DCTELEM block[4][4]);
418

    
419
    /* snow wavelet */
420
    void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
421
    void (*horizontal_compose97i)(IDWTELEM *b, int width);
422
    void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
423

    
424
    void (*prefetch)(void *mem, int stride, int h);
425

    
426
    void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
427

    
428
    /* vc1 functions */
429
    void (*vc1_inv_trans_8x8)(DCTELEM *b);
430
    void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, DCTELEM *block);
431
    void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, DCTELEM *block);
432
    void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, DCTELEM *block);
433
    void (*vc1_v_overlap)(uint8_t* src, int stride);
434
    void (*vc1_h_overlap)(uint8_t* src, int stride);
435
    /* put 8x8 block with bicubic interpolation and quarterpel precision
436
     * last argument is actually round value instead of height
437
     */
438
    op_pixels_func put_vc1_mspel_pixels_tab[16];
439

    
440
    /* intrax8 functions */
441
    void (*x8_spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
442
    void (*x8_setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
443
           int * range, int * sum,  int edges);
444

    
445
} DSPContext;
446

    
447
void dsputil_static_init(void);
448
void dsputil_init(DSPContext* p, AVCodecContext *avctx);
449

    
450
int ff_check_alignment(void);
451

    
452
/**
453
 * permute block according to permuatation.
454
 * @param last last non zero element in scantable order
455
 */
456
void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
457

    
458
void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
459

    
460
#define         BYTE_VEC32(c)   ((c)*0x01010101UL)
461

    
462
static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
463
{
464
    return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
465
}
466

    
467
static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
468
{
469
    return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
470
}
471

    
472
static inline int get_penalty_factor(int lambda, int lambda2, int type){
473
    switch(type&0xFF){
474
    default:
475
    case FF_CMP_SAD:
476
        return lambda>>FF_LAMBDA_SHIFT;
477
    case FF_CMP_DCT:
478
        return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
479
    case FF_CMP_W53:
480
        return (4*lambda)>>(FF_LAMBDA_SHIFT);
481
    case FF_CMP_W97:
482
        return (2*lambda)>>(FF_LAMBDA_SHIFT);
483
    case FF_CMP_SATD:
484
    case FF_CMP_DCT264:
485
        return (2*lambda)>>FF_LAMBDA_SHIFT;
486
    case FF_CMP_RD:
487
    case FF_CMP_PSNR:
488
    case FF_CMP_SSE:
489
    case FF_CMP_NSSE:
490
        return lambda2>>FF_LAMBDA_SHIFT;
491
    case FF_CMP_BIT:
492
        return 1;
493
    }
494
}
495

    
496
/**
497
 * Empty mmx state.
498
 * this must be called between any dsp function and float/double code.
499
 * for example sin(); dsp->idct_put(); emms_c(); cos()
500
 */
501
#define emms_c()
502

    
503
/* should be defined by architectures supporting
504
   one or more MultiMedia extension */
505
int mm_support(void);
506

    
507
void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
508
void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
509
void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
510
void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
511
void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
512
void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
513
void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
514
void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
515
void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
516

    
517
#define DECLARE_ALIGNED_16(t, v) DECLARE_ALIGNED(16, t, v)
518

    
519
#if defined(HAVE_MMX)
520

    
521
#undef emms_c
522

    
523
#define MM_MMX    0x0001 /* standard MMX */
524
#define MM_3DNOW  0x0004 /* AMD 3DNOW */
525
#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
526
#define MM_SSE    0x0008 /* SSE functions */
527
#define MM_SSE2   0x0010 /* PIV SSE2 functions */
528
#define MM_3DNOWEXT  0x0020 /* AMD 3DNowExt */
529
#define MM_SSE3   0x0040 /* Prescott SSE3 functions */
530
#define MM_SSSE3  0x0080 /* Conroe SSSE3 functions */
531

    
532
extern int mm_flags;
533

    
534
void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
535
void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
536
void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
537

    
538
static inline void emms(void)
539
{
540
    asm volatile ("emms;":::"memory");
541
}
542

    
543

    
544
#define emms_c() \
545
{\
546
    if (mm_flags & MM_MMX)\
547
        emms();\
548
}
549

    
550
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
551

    
552
#elif defined(ARCH_ARMV4L)
553

    
554
#define MM_IWMMXT    0x0100 /* XScale IWMMXT */
555

    
556
extern int mm_flags;
557

    
558
#elif defined(ARCH_POWERPC)
559

    
560
#define MM_ALTIVEC    0x0001 /* standard AltiVec */
561

    
562
extern int mm_flags;
563

    
564
#define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
565
#define STRIDE_ALIGN 16
566

    
567
#elif defined(HAVE_MMI)
568

    
569
#define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
570
#define STRIDE_ALIGN 16
571

    
572
#endif
573

    
574
#ifndef DECLARE_ALIGNED_8
575
#   define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
576
#endif
577

    
578
#ifndef STRIDE_ALIGN
579
#   define STRIDE_ALIGN 8
580
#endif
581

    
582
/* PSNR */
583
void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
584
              int orig_linesize[3], int coded_linesize,
585
              AVCodecContext *avctx);
586

    
587
/* FFT computation */
588

    
589
/* NOTE: soon integer code will be added, so you must use the
590
   FFTSample type */
591
typedef float FFTSample;
592

    
593
struct MDCTContext;
594

    
595
typedef struct FFTComplex {
596
    FFTSample re, im;
597
} FFTComplex;
598

    
599
typedef struct FFTContext {
600
    int nbits;
601
    int inverse;
602
    uint16_t *revtab;
603
    FFTComplex *exptab;
604
    FFTComplex *exptab1; /* only used by SSE code */
605
    void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
606
    void (*imdct_calc)(struct MDCTContext *s, FFTSample *output,
607
                       const FFTSample *input, FFTSample *tmp);
608
} FFTContext;
609

    
610
int ff_fft_init(FFTContext *s, int nbits, int inverse);
611
void ff_fft_permute(FFTContext *s, FFTComplex *z);
612
void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
613
void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
614
void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
615
void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
616
void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
617

    
618
static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
619
{
620
    s->fft_calc(s, z);
621
}
622
void ff_fft_end(FFTContext *s);
623

    
624
/* MDCT computation */
625

    
626
typedef struct MDCTContext {
627
    int n;  /* size of MDCT (i.e. number of input data * 2) */
628
    int nbits; /* n = 2^nbits */
629
    /* pre/post rotation tables */
630
    FFTSample *tcos;
631
    FFTSample *tsin;
632
    FFTContext fft;
633
} MDCTContext;
634

    
635
/**
636
 * Generate a Kaiser-Bessel Derived Window.
637
 * @param   window  pointer to half window
638
 * @param   alpha   determines window shape
639
 * @param   n       size of half window
640
 */
641
void ff_kbd_window_init(float *window, float alpha, int n);
642

    
643
int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
644
void ff_imdct_calc(MDCTContext *s, FFTSample *output,
645
                const FFTSample *input, FFTSample *tmp);
646
void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
647
                        const FFTSample *input, FFTSample *tmp);
648
void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output,
649
                       const FFTSample *input, FFTSample *tmp);
650
void ff_mdct_calc(MDCTContext *s, FFTSample *out,
651
               const FFTSample *input, FFTSample *tmp);
652
void ff_mdct_end(MDCTContext *s);
653

    
654
#define WRAPPER8_16(name8, name16)\
655
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
656
    return name8(s, dst           , src           , stride, h)\
657
          +name8(s, dst+8         , src+8         , stride, h);\
658
}
659

    
660
#define WRAPPER8_16_SQ(name8, name16)\
661
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
662
    int score=0;\
663
    score +=name8(s, dst           , src           , stride, 8);\
664
    score +=name8(s, dst+8         , src+8         , stride, 8);\
665
    if(h==16){\
666
        dst += 8*stride;\
667
        src += 8*stride;\
668
        score +=name8(s, dst           , src           , stride, 8);\
669
        score +=name8(s, dst+8         , src+8         , stride, 8);\
670
    }\
671
    return score;\
672
}
673

    
674

    
675
static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
676
{
677
    int i;
678
    for(i=0; i<h; i++)
679
    {
680
        AV_WN16(dst   , AV_RN16(src   ));
681
        dst+=dstStride;
682
        src+=srcStride;
683
    }
684
}
685

    
686
static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
687
{
688
    int i;
689
    for(i=0; i<h; i++)
690
    {
691
        AV_WN32(dst   , AV_RN32(src   ));
692
        dst+=dstStride;
693
        src+=srcStride;
694
    }
695
}
696

    
697
static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
698
{
699
    int i;
700
    for(i=0; i<h; i++)
701
    {
702
        AV_WN32(dst   , AV_RN32(src   ));
703
        AV_WN32(dst+4 , AV_RN32(src+4 ));
704
        dst+=dstStride;
705
        src+=srcStride;
706
    }
707
}
708

    
709
static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
710
{
711
    int i;
712
    for(i=0; i<h; i++)
713
    {
714
        AV_WN32(dst   , AV_RN32(src   ));
715
        AV_WN32(dst+4 , AV_RN32(src+4 ));
716
        dst[8]= src[8];
717
        dst+=dstStride;
718
        src+=srcStride;
719
    }
720
}
721

    
722
static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
723
{
724
    int i;
725
    for(i=0; i<h; i++)
726
    {
727
        AV_WN32(dst   , AV_RN32(src   ));
728
        AV_WN32(dst+4 , AV_RN32(src+4 ));
729
        AV_WN32(dst+8 , AV_RN32(src+8 ));
730
        AV_WN32(dst+12, AV_RN32(src+12));
731
        dst+=dstStride;
732
        src+=srcStride;
733
    }
734
}
735

    
736
static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
737
{
738
    int i;
739
    for(i=0; i<h; i++)
740
    {
741
        AV_WN32(dst   , AV_RN32(src   ));
742
        AV_WN32(dst+4 , AV_RN32(src+4 ));
743
        AV_WN32(dst+8 , AV_RN32(src+8 ));
744
        AV_WN32(dst+12, AV_RN32(src+12));
745
        dst[16]= src[16];
746
        dst+=dstStride;
747
        src+=srcStride;
748
    }
749
}
750

    
751
#endif /* FFMPEG_DSPUTIL_H */