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FFmpeg/libavcodec/dsputil.h

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  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.  * DSPContext.

  158.  */

  159. typedef struct DSPContext {

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

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

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

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

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

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

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

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

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

  169.     /**

  170.      * translational global motion compensation.

  171.      */

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

  173.     /**

  174.      * global motion compensation.

  175.      */

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

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

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

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

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

  181. // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4

  182. 

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

  184.     me_cmp_func sse[5];

  185.     me_cmp_func hadamard8_diff[5];

  186.     me_cmp_func dct_sad[5];

  187.     me_cmp_func quant_psnr[5];

  188.     me_cmp_func bit[5];

  189.     me_cmp_func rd[5];

  190.     me_cmp_func vsad[5];

  191.     me_cmp_func vsse[5];

  192.     me_cmp_func nsse[5];

  193.     me_cmp_func w53[5];

  194.     me_cmp_func w97[5];

  195.     me_cmp_func dct_max[5];

  196.     me_cmp_func dct264_sad[5];

  197. 

  198.     me_cmp_func me_pre_cmp[5];

  199.     me_cmp_func me_cmp[5];

  200.     me_cmp_func me_sub_cmp[5];

  201.     me_cmp_func mb_cmp[5];

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

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

  204. 

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

  206.                              int size);

  207. 

  208.     /**

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

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

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

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

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

  214.      * @param pixels source

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

  216.      * @param h height

  217.      */

  218.     op_pixels_func put_pixels_tab[4][4];

  219. 

  220.     /**

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

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

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

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

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

  226.      * @param pixels source

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

  228.      * @param h height

  229.      */

  230.     op_pixels_func avg_pixels_tab[4][4];

  231. 

  232.     /**

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

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

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

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

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

  238.      * @param pixels source

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

  240.      * @param h height

  241.      */

  242.     op_pixels_func put_no_rnd_pixels_tab[4][4];

  243. 

  244.     /**

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

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

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

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

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

  250.      * @param pixels source

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

  252.      * @param h height

  253.      */

  254.     op_pixels_func avg_no_rnd_pixels_tab[4][4];

  255. 

  256.     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);

  257. 

  258.     /**

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

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

  261.      * positions<br>

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

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

  264.      * @param pixels source

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

  266.      * @param h height

  267.      */

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

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

  270. 

  271.     qpel_mc_func put_qpel_pixels_tab[2][16];

  272.     qpel_mc_func avg_qpel_pixels_tab[2][16];

  273.     qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];

  274.     qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];

  275.     qpel_mc_func put_mspel_pixels_tab[8];

  276. 

  277.     /**

  278.      * h264 Chroma MC

  279.      */

  280.     h264_chroma_mc_func put_h264_chroma_pixels_tab[3];

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

  282.     h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];

  283.     h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];

  284. 

  285.     qpel_mc_func put_h264_qpel_pixels_tab[4][16];

  286.     qpel_mc_func avg_h264_qpel_pixels_tab[4][16];

  287. 

  288.     qpel_mc_func put_2tap_qpel_pixels_tab[4][16];

  289.     qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];

  290. 

  291.     h264_weight_func weight_h264_pixels_tab[10];

  292.     h264_biweight_func biweight_h264_pixels_tab[10];

  293. 

  294.     /* AVS specific */

  295.     qpel_mc_func put_cavs_qpel_pixels_tab[2][16];

  296.     qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];

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

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

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

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

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

  302. 

  303.     me_cmp_func pix_abs[2][4];

  304. 

  305.     /* huffyuv specific */

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

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

  308.     /**

  309.      * subtract huffyuv's variant of median prediction

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

  311.      */

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

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

  314. 

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

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

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

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

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

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

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

  322.     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],

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

  324. 

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

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

  327. 

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

  329. 

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

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

  332. 

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

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

  335.     /* no alignment needed */

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

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

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

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

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

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

  342. 

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

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

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

  346. 

  347.     /* (I)DCT */

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

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

  350. 

  351.     /* IDCT really*/

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

  353. 

  354.     /**

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

  356.      * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)

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

  358.      */

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

  360. 

  361.     /**

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

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

  364.      */

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

  366. 

  367.     /**

  368.      * idct input permutation.

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

  370.      * IDCT)

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

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

  373.      * an example to avoid confusion:

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

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

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

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

  378.      */

  379.     uint8_t idct_permutation[64];

  380.     int idct_permutation_type;

  381. #define FF_NO_IDCT_PERM 1

  382. #define FF_LIBMPEG2_IDCT_PERM 2

  383. #define FF_SIMPLE_IDCT_PERM 3

  384. #define FF_TRANSPOSE_IDCT_PERM 4

  385. #define FF_PARTTRANS_IDCT_PERM 5

  386. 

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

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

  389. #define BASIS_SHIFT 16

  390. #define RECON_SHIFT 6

  391. 

  392.     /* h264 functions */

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

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

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

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

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

  398. 

  399.     /* snow wavelet */

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

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

  402.     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);

  403. 

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

  405. 

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

  407. 

  408.     /* vc1 functions */

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

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

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

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

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

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

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

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

  417.      */

  418.     op_pixels_func put_vc1_mspel_pixels_tab[16];

  419. 

  420.     /* intrax8 functions */

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

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

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

  424. 

  425. } DSPContext;

  426. 

  427. void dsputil_static_init(void);

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

  429. 

  430. int ff_check_alignment(void);

  431. 

  432. /**

  433.  * permute block according to permuatation.

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

  435.  */

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

  437. 

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

  439. 

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

  441. 

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

  443. {

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

  445. }

  446. 

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

  448. {

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

  450. }

  451. 

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

  453.     switch(type&0xFF){

  454.     default:

  455.     case FF_CMP_SAD:

  456.         return lambda>>FF_LAMBDA_SHIFT;

  457.     case FF_CMP_DCT:

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

  459.     case FF_CMP_W53:

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

  461.     case FF_CMP_W97:

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

  463.     case FF_CMP_SATD:

  464.     case FF_CMP_DCT264:

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

  466.     case FF_CMP_RD:

  467.     case FF_CMP_PSNR:

  468.     case FF_CMP_SSE:

  469.     case FF_CMP_NSSE:

  470.         return lambda2>>FF_LAMBDA_SHIFT;

  471.     case FF_CMP_BIT:

  472.         return 1;

  473.     }

  474. }

  475. 

  476. /**

  477.  * Empty mmx state.

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

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

  480.  */

  481. #define emms_c()

  482. 

  483. /* should be defined by architectures supporting

  484.    one or more MultiMedia extension */

  485. int mm_support(void);

  486. 

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

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

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

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

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

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

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

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

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

  496. 

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

  498. 

  499. #if defined(HAVE_MMX)

  500. 

  501. #undef emms_c

  502. 

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

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

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

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

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

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

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

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

  511. 

  512. extern int mm_flags;

  513. 

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

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

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

  517. 

  518. static inline void emms(void)

  519. {

  520.     __asm __volatile ("emms;":::"memory");

  521. }

  522. 

  523. 

  524. #define emms_c() \

  525. {\

  526.     if (mm_flags & MM_MMX)\

  527.         emms();\

  528. }

  529. 

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

  531. 

  532. #define STRIDE_ALIGN 8

  533. 

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

  535. 

  536. #elif defined(ARCH_ARMV4L)

  537. 

  538. /* This is to use 4 bytes read to the IDCT pointers for some 'zero'

  539.    line optimizations */

  540. #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(4, t, v)

  541. #define STRIDE_ALIGN 4

  542. 

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

  544. 

  545. extern int mm_flags;

  546. 

  547. #elif defined(HAVE_MLIB)

  548. 

  549. /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */

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

  551. #define STRIDE_ALIGN 8

  552. 

  553. #elif defined(HAVE_VIS)

  554. 

  555. /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */

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

  557. #define STRIDE_ALIGN 8

  558. 

  559. #elif defined(ARCH_ALPHA)

  560. 

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

  562. #define STRIDE_ALIGN 8

  563. 

  564. #elif defined(ARCH_POWERPC)

  565. 

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

  567. 

  568. extern int mm_flags;

  569. 

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

  571. #define STRIDE_ALIGN 16

  572. 

  573. #elif defined(HAVE_MMI)

  574. 

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

  576. #define STRIDE_ALIGN 16

  577. 

  578. #elif defined(ARCH_SH4)

  579. 

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

  581. #define STRIDE_ALIGN 8

  582. 

  583. #elif defined(ARCH_BFIN)

  584. 

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

  586. #define STRIDE_ALIGN 8

  587. 

  588. #else

  589. 

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

  591. #define STRIDE_ALIGN 8

  592. 

  593. #endif

  594. 

  595. /* PSNR */

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

  597.               int orig_linesize[3], int coded_linesize,

  598.               AVCodecContext *avctx);

  599. 

  600. /* FFT computation */

  601. 

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

  603.    FFTSample type */

  604. typedef float FFTSample;

  605. 

  606. struct MDCTContext;

  607. 

  608. typedef struct FFTComplex {

  609.     FFTSample re, im;

  610. } FFTComplex;

  611. 

  612. typedef struct FFTContext {

  613.     int nbits;

  614.     int inverse;

  615.     uint16_t *revtab;

  616.     FFTComplex *exptab;

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

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

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

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

  621. } FFTContext;

  622. 

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

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

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

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

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

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

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

  630. 

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

  632. {

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

  634. }

  635. void ff_fft_end(FFTContext *s);

  636. 

  637. /* MDCT computation */

  638. 

  639. typedef struct MDCTContext {

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

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

  642.     /* pre/post rotation tables */

  643.     FFTSample *tcos;

  644.     FFTSample *tsin;

  645.     FFTContext fft;

  646. } MDCTContext;

  647. 

  648. /**

  649.  * Generate a Kaiser-Bessel Derived Window.

  650.  * @param   window  pointer to half window

  651.  * @param   alpha   determines window shape

  652.  * @param   n       size of half window

  653.  */

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

  655. 

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

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

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

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

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

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

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

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

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

  665. void ff_mdct_end(MDCTContext *s);

  666. 

  667. #define WRAPPER8_16(name8, name16)\

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

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

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

  671. }

  672. 

  673. #define WRAPPER8_16_SQ(name8, name16)\

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

  675.     int score=0;\

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

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

  678.     if(h==16){\

  679.         dst += 8*stride;\

  680.         src += 8*stride;\

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

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

  683.     }\

  684.     return score;\

  685. }

  686. 

  687. 

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

  689. {

  690.     int i;

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

  692.     {

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

  694.         dst+=dstStride;

  695.         src+=srcStride;

  696.     }

  697. }

  698. 

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

  700. {

  701.     int i;

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

  703.     {

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

  705.         dst+=dstStride;

  706.         src+=srcStride;

  707.     }

  708. }

  709. 

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

  711. {

  712.     int i;

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

  714.     {

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

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

  717.         dst+=dstStride;

  718.         src+=srcStride;

  719.     }

  720. }

  721. 

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

  723. {

  724.     int i;

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

  726.     {

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

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

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

  730.         dst+=dstStride;

  731.         src+=srcStride;

  732.     }

  733. }

  734. 

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

  736. {

  737.     int i;

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

  739.     {

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

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

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

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

  744.         dst+=dstStride;

  745.         src+=srcStride;

  746.     }

  747. }

  748. 

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

  750. {

  751.     int i;

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

  753.     {

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

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

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

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

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

  759.         dst+=dstStride;

  760.         src+=srcStride;

  761.     }

  762. }

  763. 

  764. #endif /* FFMPEG_DSPUTIL_H */