falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
12905 Commits
32 Branches
759MB
Tree: 88855b51cd
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '88855b51cd'
${ noResults }
FFmpeg/libavcodec/dsputil.h

757 lines
28KB
Raw Blame History 

  1. /*

  2.  * DSP utils

  3.  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.

  4.  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>

  5.  *

  6.  * This file is part of FFmpeg.

  7.  *

  8.  * FFmpeg is free software; you can redistribute it and/or

  9.  * modify it under the terms of the GNU Lesser General Public

  10.  * License as published by the Free Software Foundation; either

  11.  * version 2.1 of the License, or (at your option) any later version.

  12.  *

  13.  * FFmpeg is distributed in the hope that it will be useful,

  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  16.  * Lesser General Public License for more details.

  17.  *

  18.  * You should have received a copy of the GNU Lesser General Public

  19.  * License along with FFmpeg; if not, write to the Free Software

  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  21.  */

  22. 

  23. /**

  24.  * @file dsputil.h

  25.  * DSP utils.

  26.  * note, many functions in here may use MMX which trashes the FPU state, it is

  27.  * absolutely necessary to call emms_c() between dsp & float/double code

  28.  */

  29. 

  30. #ifndef FFMPEG_DSPUTIL_H

  31. #define FFMPEG_DSPUTIL_H

  32. 

  33. #include "avcodec.h"

  34. 

  35. 

  36. //#define DEBUG

  37. /* dct code */

  38. typedef short DCTELEM;

  39. typedef int DWTELEM;

  40. typedef short IDWTELEM;

  41. 

  42. void fdct_ifast (DCTELEM *data);

  43. void fdct_ifast248 (DCTELEM *data);

  44. void ff_jpeg_fdct_islow (DCTELEM *data);

  45. void ff_fdct248_islow (DCTELEM *data);

  46. 

  47. void j_rev_dct (DCTELEM *data);

  48. void j_rev_dct4 (DCTELEM *data);

  49. void j_rev_dct2 (DCTELEM *data);

  50. void j_rev_dct1 (DCTELEM *data);

  51. void ff_wmv2_idct_c(DCTELEM *data);

  52. 

  53. void ff_fdct_mmx(DCTELEM *block);

  54. void ff_fdct_mmx2(DCTELEM *block);

  55. void ff_fdct_sse2(DCTELEM *block);

  56. 

  57. void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);

  58. void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);

  59. void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);

  60. void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);

  61. void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);

  62. void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);

  63. 

  64. void ff_vector_fmul_add_add_c(float *dst, const float *src0, const float *src1,

  65.                               const float *src2, int src3, int blocksize, int step);

  66. void ff_float_to_int16_c(int16_t *dst, const float *src, int len);

  67. 

  68. /* encoding scans */

  69. extern const uint8_t ff_alternate_horizontal_scan[64];

  70. extern const uint8_t ff_alternate_vertical_scan[64];

  71. extern const uint8_t ff_zigzag_direct[64];

  72. extern const uint8_t ff_zigzag248_direct[64];

  73. 

  74. /* pixel operations */

  75. #define MAX_NEG_CROP 1024

  76. 

  77. /* temporary */

  78. extern uint32_t ff_squareTbl[512];

  79. extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];

  80. 

  81. /* VP3 DSP functions */

  82. void ff_vp3_idct_c(DCTELEM *block/* align 16*/);

  83. void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);

  84. void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);

  85. 

  86. /* 1/2^n downscaling functions from imgconvert.c */

  87. void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);

  88. void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);

  89. void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);

  90. void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);

  91. 

  92. void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,

  93.               int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);

  94. 

  95. /* minimum alignment rules ;)

  96. if u notice errors in the align stuff, need more alignment for some asm code for some cpu

  97. or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...

  98. 

  99. !warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)

  100. i (michael) didnt check them, these are just the alignents which i think could be reached easily ...

  101. 

  102. !future video codecs might need functions with less strict alignment

  103. */

  104. 

  105. /*

  106. void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);

  107. void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);

  108. void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);

  109. void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);

  110. void clear_blocks_c(DCTELEM *blocks);

  111. */

  112. 

  113. /* add and put pixel (decoding) */

  114. // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16

  115. //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4

  116. typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);

  117. 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);

  118. typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);

  119. typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);

  120. typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);

  121. typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);

  122. 

  123. #define DEF_OLD_QPEL(name)\

  124. void ff_put_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\

  125. void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\

  126. void ff_avg_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);

  127. 

  128. DEF_OLD_QPEL(qpel16_mc11_old_c)

  129. DEF_OLD_QPEL(qpel16_mc31_old_c)

  130. DEF_OLD_QPEL(qpel16_mc12_old_c)

  131. DEF_OLD_QPEL(qpel16_mc32_old_c)

  132. DEF_OLD_QPEL(qpel16_mc13_old_c)

  133. DEF_OLD_QPEL(qpel16_mc33_old_c)

  134. DEF_OLD_QPEL(qpel8_mc11_old_c)

  135. DEF_OLD_QPEL(qpel8_mc31_old_c)

  136. DEF_OLD_QPEL(qpel8_mc12_old_c)

  137. DEF_OLD_QPEL(qpel8_mc32_old_c)

  138. DEF_OLD_QPEL(qpel8_mc13_old_c)

  139. DEF_OLD_QPEL(qpel8_mc33_old_c)

  140. 

  141. #define CALL_2X_PIXELS(a, b, n)\

  142. static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\

  143.     b(block  , pixels  , line_size, h);\

  144.     b(block+n, pixels+n, line_size, h);\

  145. }

  146. 

  147. /* motion estimation */

  148. // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2

  149. // although currently h<4 is not used as functions with width <8 are neither used nor implemented

  150. 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))*/;

  151. 

  152. 

  153. // for snow slices

  154. typedef struct slice_buffer_s slice_buffer;

  155. 

  156. /**

  157.  * Scantable.

  158.  */

  159. typedef struct ScanTable{

  160.     const uint8_t *scantable;

  161.     uint8_t permutated[64];

  162.     uint8_t raster_end[64];

  163. #ifdef ARCH_POWERPC

  164.                 /** Used by dct_quantize_altivec to find last-non-zero */

  165.     DECLARE_ALIGNED(16, uint8_t, inverse[64]);

  166. #endif

  167. } ScanTable;

  168. 

  169. void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);

  170. 

  171. void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize,

  172.                          int block_w, int block_h,

  173.                          int src_x, int src_y, int w, int h);

  174. 

  175. /**

  176.  * DSPContext.

  177.  */

  178. typedef struct DSPContext {

  179.     /* pixel ops : interface with DCT */

  180.     void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);

  181.     void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);

  182.     void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);

  183.     void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);

  184.     void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);

  185.     void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);

  186.     void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);

  187.     int (*sum_abs_dctelem)(DCTELEM *block/*align 16*/);

  188.     /**

  189.      * translational global motion compensation.

  190.      */

  191.     void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);

  192.     /**

  193.      * global motion compensation.

  194.      */

  195.     void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,

  196.                     int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);

  197.     void (*clear_blocks)(DCTELEM *blocks/*align 16*/);

  198.     int (*pix_sum)(uint8_t * pix, int line_size);

  199.     int (*pix_norm1)(uint8_t * pix, int line_size);

  200. // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4

  201. 

  202.     me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */

  203.     me_cmp_func sse[5];

  204.     me_cmp_func hadamard8_diff[5];

  205.     me_cmp_func dct_sad[5];

  206.     me_cmp_func quant_psnr[5];

  207.     me_cmp_func bit[5];

  208.     me_cmp_func rd[5];

  209.     me_cmp_func vsad[5];

  210.     me_cmp_func vsse[5];

  211.     me_cmp_func nsse[5];

  212.     me_cmp_func w53[5];

  213.     me_cmp_func w97[5];

  214.     me_cmp_func dct_max[5];

  215.     me_cmp_func dct264_sad[5];

  216. 

  217.     me_cmp_func me_pre_cmp[5];

  218.     me_cmp_func me_cmp[5];

  219.     me_cmp_func me_sub_cmp[5];

  220.     me_cmp_func mb_cmp[5];

  221.     me_cmp_func ildct_cmp[5]; //only width 16 used

  222.     me_cmp_func frame_skip_cmp[5]; //only width 8 used

  223. 

  224.     int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2,

  225.                              int size);

  226. 

  227.     /**

  228.      * Halfpel motion compensation with rounding (a+b+1)>>1.

  229.      * this is an array[4][4] of motion compensation functions for 4

  230.      * horizontal blocksizes (8,16) and the 4 halfpel positions<br>

  231.      * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]

  232.      * @param block destination where the result is stored

  233.      * @param pixels source

  234.      * @param line_size number of bytes in a horizontal line of block

  235.      * @param h height

  236.      */

  237.     op_pixels_func put_pixels_tab[4][4];

  238. 

  239.     /**

  240.      * Halfpel motion compensation with rounding (a+b+1)>>1.

  241.      * This is an array[4][4] of motion compensation functions for 4

  242.      * horizontal blocksizes (8,16) and the 4 halfpel positions<br>

  243.      * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]

  244.      * @param block destination into which the result is averaged (a+b+1)>>1

  245.      * @param pixels source

  246.      * @param line_size number of bytes in a horizontal line of block

  247.      * @param h height

  248.      */

  249.     op_pixels_func avg_pixels_tab[4][4];

  250. 

  251.     /**

  252.      * Halfpel motion compensation with no rounding (a+b)>>1.

  253.      * this is an array[2][4] of motion compensation functions for 2

  254.      * horizontal blocksizes (8,16) and the 4 halfpel positions<br>

  255.      * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]

  256.      * @param block destination where the result is stored

  257.      * @param pixels source

  258.      * @param line_size number of bytes in a horizontal line of block

  259.      * @param h height

  260.      */

  261.     op_pixels_func put_no_rnd_pixels_tab[4][4];

  262. 

  263.     /**

  264.      * Halfpel motion compensation with no rounding (a+b)>>1.

  265.      * this is an array[2][4] of motion compensation functions for 2

  266.      * horizontal blocksizes (8,16) and the 4 halfpel positions<br>

  267.      * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]

  268.      * @param block destination into which the result is averaged (a+b)>>1

  269.      * @param pixels source

  270.      * @param line_size number of bytes in a horizontal line of block

  271.      * @param h height

  272.      */

  273.     op_pixels_func avg_no_rnd_pixels_tab[4][4];

  274. 

  275.     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);

  276. 

  277.     /**

  278.      * Thirdpel motion compensation with rounding (a+b+1)>>1.

  279.      * this is an array[12] of motion compensation functions for the 9 thirdpe

  280.      * positions<br>

  281.      * *pixels_tab[ xthirdpel + 4*ythirdpel ]

  282.      * @param block destination where the result is stored

  283.      * @param pixels source

  284.      * @param line_size number of bytes in a horizontal line of block

  285.      * @param h height

  286.      */

  287.     tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?

  288.     tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?

  289. 

  290.     qpel_mc_func put_qpel_pixels_tab[2][16];

  291.     qpel_mc_func avg_qpel_pixels_tab[2][16];

  292.     qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];

  293.     qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];

  294.     qpel_mc_func put_mspel_pixels_tab[8];

  295. 

  296.     /**

  297.      * h264 Chroma MC

  298.      */

  299.     h264_chroma_mc_func put_h264_chroma_pixels_tab[3];

  300.     /* This is really one func used in VC-1 decoding */

  301.     h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];

  302.     h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];

  303. 

  304.     qpel_mc_func put_h264_qpel_pixels_tab[4][16];

  305.     qpel_mc_func avg_h264_qpel_pixels_tab[4][16];

  306. 

  307.     qpel_mc_func put_2tap_qpel_pixels_tab[4][16];

  308.     qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];

  309. 

  310.     h264_weight_func weight_h264_pixels_tab[10];

  311.     h264_biweight_func biweight_h264_pixels_tab[10];

  312. 

  313.     /* AVS specific */

  314.     qpel_mc_func put_cavs_qpel_pixels_tab[2][16];

  315.     qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];

  316.     void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);

  317.     void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);

  318.     void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);

  319.     void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);

  320.     void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);

  321. 

  322.     me_cmp_func pix_abs[2][4];

  323. 

  324.     /* huffyuv specific */

  325.     void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);

  326.     void (*add_bytes_l2)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 16*/, int w);

  327.     void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);

  328.     /**

  329.      * subtract huffyuv's variant of median prediction

  330.      * note, this might read from src1[-1], src2[-1]

  331.      */

  332.     void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);

  333.     /* this might write to dst[w] */

  334.     void (*add_png_paeth_prediction)(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp);

  335.     void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w);

  336. 

  337.     void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);

  338.     void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);

  339.     void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);

  340.     void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);

  341.     void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);

  342.     void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);

  343.     // h264_loop_filter_strength: simd only. the C version is inlined in h264.c

  344.     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],

  345.                                       int bidir, int edges, int step, int mask_mv0, int mask_mv1);

  346. 

  347.     void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);

  348.     void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);

  349. 

  350.     void (*h261_loop_filter)(uint8_t *src, int stride);

  351. 

  352.     void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);

  353.     void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);

  354. 

  355.     /* assume len is a multiple of 4, and arrays are 16-byte aligned */

  356.     void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);

  357.     /* no alignment needed */

  358.     void (*flac_compute_autocorr)(const int32_t *data, int len, int lag, double *autoc);

  359.     /* assume len is a multiple of 8, and arrays are 16-byte aligned */

  360.     void (*vector_fmul)(float *dst, const float *src, int len);

  361.     void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);

  362.     /* assume len is a multiple of 8, and src arrays are 16-byte aligned */

  363.     void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);

  364. 

  365.     /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]

  366.      * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */

  367.     void (*float_to_int16)(int16_t *dst, const float *src, int len);

  368. 

  369.     /* (I)DCT */

  370.     void (*fdct)(DCTELEM *block/* align 16*/);

  371.     void (*fdct248)(DCTELEM *block/* align 16*/);

  372. 

  373.     /* IDCT really*/

  374.     void (*idct)(DCTELEM *block/* align 16*/);

  375. 

  376.     /**

  377.      * block -> idct -> clip to unsigned 8 bit -> dest.

  378.      * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)

  379.      * @param line_size size in bytes of a horizontal line of dest

  380.      */

  381.     void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);

  382. 

  383.     /**

  384.      * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.

  385.      * @param line_size size in bytes of a horizontal line of dest

  386.      */

  387.     void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);

  388. 

  389.     /**

  390.      * idct input permutation.

  391.      * several optimized IDCTs need a permutated input (relative to the normal order of the reference

  392.      * IDCT)

  393.      * this permutation must be performed before the idct_put/add, note, normally this can be merged

  394.      * with the zigzag/alternate scan<br>

  395.      * an example to avoid confusion:

  396.      * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)

  397.      * - (x -> referece dct -> reference idct -> x)

  398.      * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)

  399.      * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)

  400.      */

  401.     uint8_t idct_permutation[64];

  402.     int idct_permutation_type;

  403. #define FF_NO_IDCT_PERM 1

  404. #define FF_LIBMPEG2_IDCT_PERM 2

  405. #define FF_SIMPLE_IDCT_PERM 3

  406. #define FF_TRANSPOSE_IDCT_PERM 4

  407. #define FF_PARTTRANS_IDCT_PERM 5

  408. 

  409.     int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);

  410.     void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);

  411. #define BASIS_SHIFT 16

  412. #define RECON_SHIFT 6

  413. 

  414.     void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);

  415. #define EDGE_WIDTH 16

  416. 

  417.     /* h264 functions */

  418.     void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);

  419.     void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);

  420.     void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);

  421.     void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);

  422.     void (*h264_dct)(DCTELEM block[4][4]);

  423. 

  424.     /* snow wavelet */

  425.     void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);

  426.     void (*horizontal_compose97i)(IDWTELEM *b, int width);

  427.     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);

  428. 

  429.     void (*prefetch)(void *mem, int stride, int h);

  430. 

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

  432. 

  433.     /* vc1 functions */

  434.     void (*vc1_inv_trans_8x8)(DCTELEM *b);

  435.     void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, DCTELEM *block);

  436.     void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, DCTELEM *block);

  437.     void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, DCTELEM *block);

  438.     void (*vc1_v_overlap)(uint8_t* src, int stride);

  439.     void (*vc1_h_overlap)(uint8_t* src, int stride);

  440.     /* put 8x8 block with bicubic interpolation and quarterpel precision

  441.      * last argument is actually round value instead of height

  442.      */

  443.     op_pixels_func put_vc1_mspel_pixels_tab[16];

  444. 

  445.     /* intrax8 functions */

  446.     void (*x8_spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);

  447.     void (*x8_setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,

  448.            int * range, int * sum,  int edges);

  449. 

  450. } DSPContext;

  451. 

  452. void dsputil_static_init(void);

  453. void dsputil_init(DSPContext* p, AVCodecContext *avctx);

  454. 

  455. int ff_check_alignment(void);

  456. 

  457. /**

  458.  * permute block according to permuatation.

  459.  * @param last last non zero element in scantable order

  460.  */

  461. void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);

  462. 

  463. void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);

  464. 

  465. #define         BYTE_VEC32(c)   ((c)*0x01010101UL)

  466. 

  467. static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)

  468. {

  469.     return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);

  470. }

  471. 

  472. static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)

  473. {

  474.     return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);

  475. }

  476. 

  477. static inline int get_penalty_factor(int lambda, int lambda2, int type){

  478.     switch(type&0xFF){

  479.     default:

  480.     case FF_CMP_SAD:

  481.         return lambda>>FF_LAMBDA_SHIFT;

  482.     case FF_CMP_DCT:

  483.         return (3*lambda)>>(FF_LAMBDA_SHIFT+1);

  484.     case FF_CMP_W53:

  485.         return (4*lambda)>>(FF_LAMBDA_SHIFT);

  486.     case FF_CMP_W97:

  487.         return (2*lambda)>>(FF_LAMBDA_SHIFT);

  488.     case FF_CMP_SATD:

  489.     case FF_CMP_DCT264:

  490.         return (2*lambda)>>FF_LAMBDA_SHIFT;

  491.     case FF_CMP_RD:

  492.     case FF_CMP_PSNR:

  493.     case FF_CMP_SSE:

  494.     case FF_CMP_NSSE:

  495.         return lambda2>>FF_LAMBDA_SHIFT;

  496.     case FF_CMP_BIT:

  497.         return 1;

  498.     }

  499. }

  500. 

  501. /**

  502.  * Empty mmx state.

  503.  * this must be called between any dsp function and float/double code.

  504.  * for example sin(); dsp->idct_put(); emms_c(); cos()

  505.  */

  506. #define emms_c()

  507. 

  508. /* should be defined by architectures supporting

  509.    one or more MultiMedia extension */

  510. int mm_support(void);

  511. 

  512. void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);

  513. void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);

  514. void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);

  515. void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);

  516. void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);

  517. void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);

  518. void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);

  519. void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);

  520. void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);

  521. 

  522. #define DECLARE_ALIGNED_16(t, v) DECLARE_ALIGNED(16, t, v)

  523. 

  524. #if defined(HAVE_MMX)

  525. 

  526. #undef emms_c

  527. 

  528. #define MM_MMX    0x0001 /* standard MMX */

  529. #define MM_3DNOW  0x0004 /* AMD 3DNOW */

  530. #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */

  531. #define MM_SSE    0x0008 /* SSE functions */

  532. #define MM_SSE2   0x0010 /* PIV SSE2 functions */

  533. #define MM_3DNOWEXT  0x0020 /* AMD 3DNowExt */

  534. #define MM_SSE3   0x0040 /* Prescott SSE3 functions */

  535. #define MM_SSSE3  0x0080 /* Conroe SSSE3 functions */

  536. 

  537. extern int mm_flags;

  538. 

  539. void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);

  540. void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);

  541. void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);

  542. 

  543. static inline void emms(void)

  544. {

  545.     asm volatile ("emms;":::"memory");

  546. }

  547. 

  548. 

  549. #define emms_c() \

  550. {\

  551.     if (mm_flags & MM_MMX)\

  552.         emms();\

  553. }

  554. 

  555. void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);

  556. 

  557. #elif defined(ARCH_ARMV4L)

  558. 

  559. #define MM_IWMMXT    0x0100 /* XScale IWMMXT */

  560. 

  561. extern int mm_flags;

  562. 

  563. #elif defined(ARCH_POWERPC)

  564. 

  565. #define MM_ALTIVEC    0x0001 /* standard AltiVec */

  566. 

  567. extern int mm_flags;

  568. 

  569. #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)

  570. #define STRIDE_ALIGN 16

  571. 

  572. #elif defined(HAVE_MMI)

  573. 

  574. #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)

  575. #define STRIDE_ALIGN 16

  576. 

  577. #endif

  578. 

  579. #ifndef DECLARE_ALIGNED_8

  580. #   define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)

  581. #endif

  582. 

  583. #ifndef STRIDE_ALIGN

  584. #   define STRIDE_ALIGN 8

  585. #endif

  586. 

  587. /* PSNR */

  588. void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],

  589.               int orig_linesize[3], int coded_linesize,

  590.               AVCodecContext *avctx);

  591. 

  592. /* FFT computation */

  593. 

  594. /* NOTE: soon integer code will be added, so you must use the

  595.    FFTSample type */

  596. typedef float FFTSample;

  597. 

  598. struct MDCTContext;

  599. 

  600. typedef struct FFTComplex {

  601.     FFTSample re, im;

  602. } FFTComplex;

  603. 

  604. typedef struct FFTContext {

  605.     int nbits;

  606.     int inverse;

  607.     uint16_t *revtab;

  608.     FFTComplex *exptab;

  609.     FFTComplex *exptab1; /* only used by SSE code */

  610.     void (*fft_calc)(struct FFTContext *s, FFTComplex *z);

  611.     void (*imdct_calc)(struct MDCTContext *s, FFTSample *output,

  612.                        const FFTSample *input, FFTSample *tmp);

  613. } FFTContext;

  614. 

  615. int ff_fft_init(FFTContext *s, int nbits, int inverse);

  616. void ff_fft_permute(FFTContext *s, FFTComplex *z);

  617. void ff_fft_calc_c(FFTContext *s, FFTComplex *z);

  618. void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);

  619. void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);

  620. void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);

  621. void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);

  622. 

  623. static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)

  624. {

  625.     s->fft_calc(s, z);

  626. }

  627. void ff_fft_end(FFTContext *s);

  628. 

  629. /* MDCT computation */

  630. 

  631. typedef struct MDCTContext {

  632.     int n;  /* size of MDCT (i.e. number of input data * 2) */

  633.     int nbits; /* n = 2^nbits */

  634.     /* pre/post rotation tables */

  635.     FFTSample *tcos;

  636.     FFTSample *tsin;

  637.     FFTContext fft;

  638. } MDCTContext;

  639. 

  640. /**

  641.  * Generate a Kaiser-Bessel Derived Window.

  642.  * @param   window  pointer to half window

  643.  * @param   alpha   determines window shape

  644.  * @param   n       size of half window

  645.  */

  646. void ff_kbd_window_init(float *window, float alpha, int n);

  647. 

  648. int ff_mdct_init(MDCTContext *s, int nbits, int inverse);

  649. void ff_imdct_calc(MDCTContext *s, FFTSample *output,

  650.                 const FFTSample *input, FFTSample *tmp);

  651. void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,

  652.                         const FFTSample *input, FFTSample *tmp);

  653. void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output,

  654.                        const FFTSample *input, FFTSample *tmp);

  655. void ff_mdct_calc(MDCTContext *s, FFTSample *out,

  656.                const FFTSample *input, FFTSample *tmp);

  657. void ff_mdct_end(MDCTContext *s);

  658. 

  659. #define WRAPPER8_16(name8, name16)\

  660. static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\

  661.     return name8(s, dst           , src           , stride, h)\

  662.           +name8(s, dst+8         , src+8         , stride, h);\

  663. }

  664. 

  665. #define WRAPPER8_16_SQ(name8, name16)\

  666. static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\

  667.     int score=0;\

  668.     score +=name8(s, dst           , src           , stride, 8);\

  669.     score +=name8(s, dst+8         , src+8         , stride, 8);\

  670.     if(h==16){\

  671.         dst += 8*stride;\

  672.         src += 8*stride;\

  673.         score +=name8(s, dst           , src           , stride, 8);\

  674.         score +=name8(s, dst+8         , src+8         , stride, 8);\

  675.     }\

  676.     return score;\

  677. }

  678. 

  679. 

  680. static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)

  681. {

  682.     int i;

  683.     for(i=0; i<h; i++)

  684.     {

  685.         AV_WN16(dst   , AV_RN16(src   ));

  686.         dst+=dstStride;

  687.         src+=srcStride;

  688.     }

  689. }

  690. 

  691. static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)

  692. {

  693.     int i;

  694.     for(i=0; i<h; i++)

  695.     {

  696.         AV_WN32(dst   , AV_RN32(src   ));

  697.         dst+=dstStride;

  698.         src+=srcStride;

  699.     }

  700. }

  701. 

  702. static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)

  703. {

  704.     int i;

  705.     for(i=0; i<h; i++)

  706.     {

  707.         AV_WN32(dst   , AV_RN32(src   ));

  708.         AV_WN32(dst+4 , AV_RN32(src+4 ));

  709.         dst+=dstStride;

  710.         src+=srcStride;

  711.     }

  712. }

  713. 

  714. static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)

  715. {

  716.     int i;

  717.     for(i=0; i<h; i++)

  718.     {

  719.         AV_WN32(dst   , AV_RN32(src   ));

  720.         AV_WN32(dst+4 , AV_RN32(src+4 ));

  721.         dst[8]= src[8];

  722.         dst+=dstStride;

  723.         src+=srcStride;

  724.     }

  725. }

  726. 

  727. static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)

  728. {

  729.     int i;

  730.     for(i=0; i<h; i++)

  731.     {

  732.         AV_WN32(dst   , AV_RN32(src   ));

  733.         AV_WN32(dst+4 , AV_RN32(src+4 ));

  734.         AV_WN32(dst+8 , AV_RN32(src+8 ));

  735.         AV_WN32(dst+12, AV_RN32(src+12));

  736.         dst+=dstStride;

  737.         src+=srcStride;

  738.     }

  739. }

  740. 

  741. static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)

  742. {

  743.     int i;

  744.     for(i=0; i<h; i++)

  745.     {

  746.         AV_WN32(dst   , AV_RN32(src   ));

  747.         AV_WN32(dst+4 , AV_RN32(src+4 ));

  748.         AV_WN32(dst+8 , AV_RN32(src+8 ));

  749.         AV_WN32(dst+12, AV_RN32(src+12));

  750.         dst[16]= src[16];

  751.         dst+=dstStride;

  752.         src+=srcStride;

  753.     }

  754. }

  755. 

  756. #endif /* FFMPEG_DSPUTIL_H */