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390 lines
12 KiB
390 lines
12 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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/** |
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* @file dsputil.h |
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* DSP utils. |
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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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//typedef int 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_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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/* pixel operations */ |
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#define MAX_NEG_CROP 384 |
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/* temporary */ |
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extern uint32_t squareTbl[512]; |
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extern uint8_t cropTbl[256 + 2 * MAX_NEG_CROP]; |
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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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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 (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride); |
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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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typedef int (*op_pixels_abs_func)(uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size)/* __attribute__ ((const))*/; |
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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)/* __attribute__ ((const))*/; |
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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 (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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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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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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me_cmp_func sad[2]; /* identical to pix_absAxA except additional void * */ |
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me_cmp_func sse[2]; |
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me_cmp_func hadamard8_diff[2]; |
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me_cmp_func dct_sad[2]; |
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me_cmp_func quant_psnr[2]; |
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me_cmp_func bit[2]; |
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me_cmp_func rd[2]; |
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int (*hadamard8_abs )(uint8_t *src, int stride, int mean); |
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me_cmp_func me_pre_cmp[11]; |
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me_cmp_func me_cmp[11]; |
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me_cmp_func me_sub_cmp[11]; |
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me_cmp_func mb_cmp[11]; |
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/* maybe create an array for 16/8 functions */ |
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op_pixels_func put_pixels_tab[2][4]; |
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op_pixels_func avg_pixels_tab[2][4]; |
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op_pixels_func put_no_rnd_pixels_tab[2][4]; |
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op_pixels_func avg_no_rnd_pixels_tab[2][4]; |
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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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op_pixels_abs_func pix_abs16x16; |
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op_pixels_abs_func pix_abs16x16_x2; |
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op_pixels_abs_func pix_abs16x16_y2; |
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op_pixels_abs_func pix_abs16x16_xy2; |
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op_pixels_abs_func pix_abs8x8; |
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op_pixels_abs_func pix_abs8x8_x2; |
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op_pixels_abs_func pix_abs8x8_y2; |
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op_pixels_abs_func pix_abs8x8_xy2; |
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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 (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w); |
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/* (I)DCT */ |
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void (*fdct)(DCTELEM *block/* align 16*/); |
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/** |
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* block -> idct -> clip to unsigned 8 bit -> dest. |
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* (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...) |
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* @param line_size size in bytes of a horizotal line of dest |
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*/ |
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void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/); |
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/** |
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* block -> idct -> add dest -> clip to unsigned 8 bit -> dest. |
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* @param line_size size in bytes of a horizotal line of dest |
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*/ |
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void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/); |
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/** |
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* idct input permutation. |
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* an example to avoid confusion: |
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* - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...) |
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* - (x -> referece dct -> reference idct -> x) |
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* - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x) |
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* - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...) |
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*/ |
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uint8_t idct_permutation[64]; |
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int idct_permutation_type; |
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#define FF_NO_IDCT_PERM 1 |
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#define FF_LIBMPEG2_IDCT_PERM 2 |
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#define FF_SIMPLE_IDCT_PERM 3 |
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#define FF_TRANSPOSE_IDCT_PERM 4 |
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} DSPContext; |
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void dsputil_init(DSPContext* p, AVCodecContext *avctx); |
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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(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last); |
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/** |
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* Empty mmx state. |
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* this must be called between any dsp function and float/double code. |
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* for example sin(); dsp->idct_put(); emms_c(); cos() |
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*/ |
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#define emms_c() |
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/* should be defined by architectures supporting |
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one or more MultiMedia extension */ |
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int mm_support(void); |
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#if defined(HAVE_MMX) |
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#undef emms_c |
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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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void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size); |
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void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size); |
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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(DSPContext* c, AVCodecContext *avctx); |
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void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx); |
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#elif defined(ARCH_ARMV4L) |
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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(DSPContext* c, AVCodecContext *avctx); |
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#elif defined(HAVE_MLIB) |
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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(DSPContext* c, AVCodecContext *avctx); |
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#elif defined(ARCH_ALPHA) |
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#define __align8 __attribute__ ((aligned (8))) |
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void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx); |
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#elif defined(ARCH_POWERPC) |
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#define MM_ALTIVEC 0x0001 /* standard AltiVec */ |
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extern int mm_flags; |
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#if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN) |
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#include <altivec.h> |
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#endif |
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#define __align8 __attribute__ ((aligned (16))) |
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void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx); |
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#elif defined(HAVE_MMI) |
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#define __align8 __attribute__ ((aligned (16))) |
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void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx); |
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#else |
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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_t *orig_image[3], uint8_t *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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void fft_calc_altivec(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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#define WARPER88_1616(name8, name16)\ |
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static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride){\ |
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return name8(s, dst , src , stride)\ |
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+name8(s, dst+8 , src+8 , stride)\ |
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+name8(s, dst +8*stride, src +8*stride, stride)\ |
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+name8(s, dst+8+8*stride, src+8+8*stride, stride);\ |
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} |
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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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#ifdef CONFIG_WIN32 |
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/* XXX: incorrect, but make it compile */ |
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return (int)(x); |
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#else |
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return (int)(rint(x)); |
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#endif |
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} |
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#endif |
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#endif
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