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282 lines
8.5 KiB
282 lines
8.5 KiB
/* |
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* DSP utils |
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard. |
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* |
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* This library 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 of the License, or (at your option) any later version. |
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* |
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* This library 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 this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef DSPUTIL_H |
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#define DSPUTIL_H |
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#include "common.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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void fdct_ifast (DCTELEM *data); |
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void ff_jpeg_fdct_islow (DCTELEM *data); |
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void j_rev_dct (DCTELEM *data); |
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void ff_fdct_mmx(DCTELEM *block); |
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/* encoding scans */ |
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extern const UINT8 ff_alternate_horizontal_scan[64]; |
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extern const UINT8 ff_alternate_vertical_scan[64]; |
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extern const UINT8 ff_zigzag_direct[64]; |
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/* pixel operations */ |
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#define MAX_NEG_CROP 384 |
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/* temporary */ |
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extern UINT32 squareTbl[512]; |
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extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP]; |
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void dsputil_init(void); |
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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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/* pixel ops : interface with DCT */ |
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extern void (*get_pixels)(DCTELEM *block/*align 16*/, const UINT8 *pixels/*align 8*/, int line_size); |
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extern void (*diff_pixels)(DCTELEM *block/*align 16*/, const UINT8 *s1/*align 8*/, const UINT8 *s2/*align 8*/, int stride); |
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extern void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, UINT8 *pixels/*align 8*/, int line_size); |
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extern void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, UINT8 *pixels/*align 8*/, int line_size); |
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extern void (*ff_gmc1)(UINT8 *dst/*align 8*/, UINT8 *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder); |
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extern void (*ff_gmc )(UINT8 *dst/*align 8*/, UINT8 *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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extern void (*clear_blocks)(DCTELEM *blocks/*align 16*/); |
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extern int (*pix_sum)(UINT8 * pix, int line_size); |
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extern int (*pix_norm1)(UINT8 * pix, int line_size); |
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void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size); |
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void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride); |
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void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size); |
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void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size); |
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void clear_blocks_c(DCTELEM *blocks); |
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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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typedef void (*op_pixels_func)(UINT8 *block/*align width (8 or 16)*/, const UINT8 *pixels/*align 1*/, int line_size, int h); |
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typedef void (*qpel_mc_func)(UINT8 *dst/*align width (8 or 16)*/, UINT8 *src/*align 1*/, int stride); |
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extern op_pixels_func put_pixels_tab[2][4]; |
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extern op_pixels_func avg_pixels_tab[2][4]; |
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extern op_pixels_func put_no_rnd_pixels_tab[2][4]; |
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extern op_pixels_func avg_no_rnd_pixels_tab[2][4]; |
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extern qpel_mc_func put_qpel_pixels_tab[2][16]; |
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extern qpel_mc_func avg_qpel_pixels_tab[2][16]; |
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extern qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16]; |
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extern qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16]; |
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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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typedef int (*op_pixels_abs_func)(UINT8 *blk1/*align width (8 or 16)*/, UINT8 *blk2/*align 1*/, int line_size); |
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extern op_pixels_abs_func pix_abs16x16; |
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extern op_pixels_abs_func pix_abs16x16_x2; |
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extern op_pixels_abs_func pix_abs16x16_y2; |
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extern op_pixels_abs_func pix_abs16x16_xy2; |
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extern op_pixels_abs_func pix_abs8x8; |
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extern op_pixels_abs_func pix_abs8x8_x2; |
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extern op_pixels_abs_func pix_abs8x8_y2; |
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extern op_pixels_abs_func pix_abs8x8_xy2; |
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int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx); |
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int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx); |
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int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx); |
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int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx); |
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/** |
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* permute block according to permuatation. |
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* @param last last non zero element in scantable order |
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*/ |
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void ff_block_permute(INT16 *block, UINT8 *permutation, const UINT8 *scantable, int last); |
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#if defined(HAVE_MMX) |
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#define MM_MMX 0x0001 /* standard MMX */ |
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#define MM_3DNOW 0x0004 /* AMD 3DNOW */ |
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#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */ |
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#define MM_SSE 0x0008 /* SSE functions */ |
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#define MM_SSE2 0x0010 /* PIV SSE2 functions */ |
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extern int mm_flags; |
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int mm_support(void); |
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static inline void emms(void) |
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{ |
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__asm __volatile ("emms;":::"memory"); |
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} |
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#define emms_c() \ |
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{\ |
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if (mm_flags & MM_MMX)\ |
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emms();\ |
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} |
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#define __align8 __attribute__ ((aligned (8))) |
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void dsputil_init_mmx(void); |
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void dsputil_set_bit_exact_mmx(void); |
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#elif defined(ARCH_ARMV4L) |
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#define emms_c() |
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/* This is to use 4 bytes read to the IDCT pointers for some 'zero' |
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line ptimizations */ |
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#define __align8 __attribute__ ((aligned (4))) |
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void dsputil_init_armv4l(void); |
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#elif defined(HAVE_MLIB) |
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#define emms_c() |
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/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */ |
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#define __align8 __attribute__ ((aligned (8))) |
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void dsputil_init_mlib(void); |
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#elif defined(ARCH_ALPHA) |
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#define emms_c() |
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#define __align8 __attribute__ ((aligned (8))) |
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void dsputil_init_alpha(void); |
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#elif defined(ARCH_POWERPC) |
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#define emms_c() |
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#define __align8 __attribute__ ((aligned (16))) |
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void dsputil_init_ppc(void); |
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#elif defined(HAVE_MMI) |
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#define emms_c() |
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#define __align8 __attribute__ ((aligned (16))) |
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void dsputil_init_mmi(void); |
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#else |
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#define emms_c() |
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#define __align8 |
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#endif |
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#ifdef __GNUC__ |
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struct unaligned_64 { uint64_t l; } __attribute__((packed)); |
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struct unaligned_32 { uint32_t l; } __attribute__((packed)); |
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#define LD32(a) (((const struct unaligned_32 *) (a))->l) |
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#define LD64(a) (((const struct unaligned_64 *) (a))->l) |
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#define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b) |
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#else /* __GNUC__ */ |
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#define LD32(a) (*((uint32_t*)(a))) |
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#define LD64(a) (*((uint64_t*)(a))) |
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#define ST32(a, b) *((uint32_t*)(a)) = (b) |
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#endif /* !__GNUC__ */ |
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/* PSNR */ |
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void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3], |
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int orig_linesize[3], int coded_linesize, |
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AVCodecContext *avctx); |
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/* FFT computation */ |
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/* NOTE: soon integer code will be added, so you must use the |
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FFTSample type */ |
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typedef float FFTSample; |
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typedef struct FFTComplex { |
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FFTSample re, im; |
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} FFTComplex; |
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typedef struct FFTContext { |
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int nbits; |
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int inverse; |
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uint16_t *revtab; |
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FFTComplex *exptab; |
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FFTComplex *exptab1; /* only used by SSE code */ |
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void (*fft_calc)(struct FFTContext *s, FFTComplex *z); |
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} FFTContext; |
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int fft_init(FFTContext *s, int nbits, int inverse); |
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void fft_permute(FFTContext *s, FFTComplex *z); |
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void fft_calc_c(FFTContext *s, FFTComplex *z); |
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void fft_calc_sse(FFTContext *s, FFTComplex *z); |
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static inline void fft_calc(FFTContext *s, FFTComplex *z) |
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{ |
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s->fft_calc(s, z); |
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} |
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void fft_end(FFTContext *s); |
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/* MDCT computation */ |
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typedef struct MDCTContext { |
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int n; /* size of MDCT (i.e. number of input data * 2) */ |
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int nbits; /* n = 2^nbits */ |
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/* pre/post rotation tables */ |
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FFTSample *tcos; |
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FFTSample *tsin; |
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FFTContext fft; |
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} MDCTContext; |
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int ff_mdct_init(MDCTContext *s, int nbits, int inverse); |
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void ff_imdct_calc(MDCTContext *s, FFTSample *output, |
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const FFTSample *input, FFTSample *tmp); |
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void ff_mdct_calc(MDCTContext *s, FFTSample *out, |
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const FFTSample *input, FFTSample *tmp); |
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void ff_mdct_end(MDCTContext *s); |
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#ifndef HAVE_LRINTF |
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/* XXX: add ISOC specific test to avoid specific BSD testing. */ |
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/* better than nothing implementation. */ |
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/* btw, rintf() is existing on fbsd too -- alex */ |
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static inline long int lrintf(float x) |
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{ |
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return (int)(rint(x)); |
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} |
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#endif |
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#endif
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