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332 lines
14 KiB
332 lines
14 KiB
/* |
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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 |
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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 AVCODEC_DSPUTIL_H |
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#define AVCODEC_DSPUTIL_H |
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#include "libavutil/intreadwrite.h" |
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#include "avcodec.h" |
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#include "rnd_avg.h" |
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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 const uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP]; |
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void ff_put_pixels8x8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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void ff_avg_pixels8x8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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void ff_put_pixels16x16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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void ff_avg_pixels16x16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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/* RV40 functions */ |
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void ff_put_rv40_qpel16_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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void ff_avg_rv40_qpel16_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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void ff_put_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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void ff_avg_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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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 you notice errors in the align stuff, need more alignment for some ASM code |
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for some CPU or need to use a function with less aligned data then send a mail |
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to the ffmpeg-devel mailing list, ... |
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!warning These alignments might not match reality, (missing attribute((align)) |
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stuff somewhere possible). |
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I (Michael) did not check them, these are just the alignments which I think |
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could be reached easily ... |
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!future video codecs might need functions with less strict alignment |
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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 than 4 |
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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*/, ptrdiff_t stride); |
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typedef void (*op_fill_func)(uint8_t *block/*align width (8 or 16)*/, uint8_t value, int line_size, int h); |
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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*/, ptrdiff_t stride);\ |
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void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, ptrdiff_t stride);\ |
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void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, ptrdiff_t 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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/* motion estimation */ |
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// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller than 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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/** |
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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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} ScanTable; |
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void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable); |
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void ff_init_scantable_permutation(uint8_t *idct_permutation, |
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int idct_permutation_type); |
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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)(int16_t *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size); |
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void (*diff_pixels)(int16_t *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 int16_t *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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void (*put_signed_pixels_clamped)(const int16_t *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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void (*add_pixels_clamped)(const int16_t *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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void (*add_pixels8)(uint8_t *pixels, int16_t *block, int line_size); |
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int (*sum_abs_dctelem)(int16_t *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_block)(int16_t *block/*align 16*/); |
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void (*clear_blocks)(int16_t *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[6]; /* identical to pix_absAxA except additional void * */ |
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me_cmp_func sse[6]; |
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me_cmp_func hadamard8_diff[6]; |
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me_cmp_func dct_sad[6]; |
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me_cmp_func quant_psnr[6]; |
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me_cmp_func bit[6]; |
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me_cmp_func rd[6]; |
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me_cmp_func vsad[6]; |
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me_cmp_func vsse[6]; |
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me_cmp_func nsse[6]; |
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me_cmp_func w53[6]; |
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me_cmp_func w97[6]; |
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me_cmp_func dct_max[6]; |
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me_cmp_func dct264_sad[6]; |
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me_cmp_func me_pre_cmp[6]; |
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me_cmp_func me_cmp[6]; |
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me_cmp_func me_sub_cmp[6]; |
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me_cmp_func mb_cmp[6]; |
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me_cmp_func ildct_cmp[6]; //only width 16 used |
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me_cmp_func frame_skip_cmp[6]; //only width 8 used |
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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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* 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 put_mspel_pixels_tab[8]; |
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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 (*diff_bytes)(uint8_t *dst/*align 16*/, const uint8_t *src1/*align 16*/, const uint8_t *src2/*align 1*/,int w); |
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/** |
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* subtract huffyuv's variant of median prediction |
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* note, this might read from src1[-1], src2[-1] |
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*/ |
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void (*sub_hfyu_median_prediction)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w, int *left, int *left_top); |
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void (*add_hfyu_median_prediction)(uint8_t *dst, const uint8_t *top, const uint8_t *diff, int w, int *left, int *left_top); |
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int (*add_hfyu_left_prediction)(uint8_t *dst, const uint8_t *src, int w, int left); |
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void (*add_hfyu_left_prediction_bgr32)(uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue, int *alpha); |
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/* this might write to dst[w] */ |
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void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w); |
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void (*bswap16_buf)(uint16_t *dst, const uint16_t *src, int len); |
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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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/* assume len is a multiple of 8, and arrays are 16-byte aligned */ |
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void (*vector_clipf)(float *dst /* align 16 */, const float *src /* align 16 */, float min, float max, int len /* align 16 */); |
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/* (I)DCT */ |
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void (*fdct)(int16_t *block/* align 16*/); |
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void (*fdct248)(int16_t *block/* align 16*/); |
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/* IDCT really*/ |
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void (*idct)(int16_t *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 horizontal line of dest |
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*/ |
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void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, int16_t *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 horizontal line of dest |
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*/ |
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void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, int16_t *block/*align 16*/); |
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/** |
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* idct input permutation. |
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* several optimized IDCTs need a permutated input (relative to the normal order of the reference |
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* IDCT) |
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* this permutation must be performed before the idct_put/add, note, normally this can be merged |
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* with the zigzag/alternate scan<br> |
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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 -> reference dct -> reference idct -> x) |
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* - (x -> reference 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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#define FF_PARTTRANS_IDCT_PERM 5 |
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#define FF_SSE2_IDCT_PERM 6 |
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int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale); |
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void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale); |
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#define BASIS_SHIFT 16 |
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#define RECON_SHIFT 6 |
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void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides); |
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#define EDGE_WIDTH 16 |
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#define EDGE_TOP 1 |
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#define EDGE_BOTTOM 2 |
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void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height); |
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/** |
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* Calculate scalar product of two vectors. |
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* @param len length of vectors, should be multiple of 16 |
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*/ |
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int32_t (*scalarproduct_int16)(const int16_t *v1, const int16_t *v2/*align 16*/, int len); |
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/* ape functions */ |
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/** |
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* Calculate scalar product of v1 and v2, |
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* and v1[i] += v3[i] * mul |
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* @param len length of vectors, should be multiple of 16 |
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*/ |
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int32_t (*scalarproduct_and_madd_int16)(int16_t *v1/*align 16*/, const int16_t *v2, const int16_t *v3, int len, int mul); |
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/** |
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* Apply symmetric window in 16-bit fixed-point. |
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* @param output destination array |
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* constraints: 16-byte aligned |
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* @param input source array |
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* constraints: 16-byte aligned |
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* @param window window array |
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* constraints: 16-byte aligned, at least len/2 elements |
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* @param len full window length |
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* constraints: multiple of ? greater than zero |
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*/ |
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void (*apply_window_int16)(int16_t *output, const int16_t *input, |
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const int16_t *window, unsigned int len); |
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/** |
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* Clip each element in an array of int32_t to a given minimum and maximum value. |
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* @param dst destination array |
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* constraints: 16-byte aligned |
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* @param src source array |
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* constraints: 16-byte aligned |
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* @param min minimum value |
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* constraints: must be in the range [-(1 << 24), 1 << 24] |
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* @param max maximum value |
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* constraints: must be in the range [-(1 << 24), 1 << 24] |
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* @param len number of elements in the array |
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* constraints: multiple of 32 greater than zero |
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*/ |
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void (*vector_clip_int32)(int32_t *dst, const int32_t *src, int32_t min, |
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int32_t max, unsigned int len); |
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op_fill_func fill_block_tab[2]; |
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} DSPContext; |
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void ff_dsputil_static_init(void); |
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void ff_dsputil_init(DSPContext* p, AVCodecContext *avctx); |
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void avpriv_dsputil_init(DSPContext* p, AVCodecContext *avctx); |
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attribute_deprecated void dsputil_init(DSPContext* c, AVCodecContext *avctx); |
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int ff_check_alignment(void); |
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void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type); |
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void ff_dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_arm(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_vis(DSPContext* c, AVCodecContext *avctx); |
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void ff_dsputil_init_dwt(DSPContext *c); |
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#endif /* AVCODEC_DSPUTIL_H */
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