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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 AVCODEC_DSPUTIL_H

  31. #define AVCODEC_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. void ff_h264_idct_add16_c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  64. void ff_h264_idct_add16intra_c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  65. void ff_h264_idct8_add4_c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  66. void ff_h264_idct_add8_c(uint8_t **dest, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  67. 

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

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

  70. void ff_vector_fmul_window_c(float *dst, const float *src0, const float *src1,

  71.                              const float *win, float add_bias, int len);

  72. void ff_float_to_int16_c(int16_t *dst, const float *src, long len);

  73. void ff_float_to_int16_interleave_c(int16_t *dst, const float **src, long len, int channels);

  74. 

  75. /* encoding scans */

  76. extern const uint8_t ff_alternate_horizontal_scan[64];

  77. extern const uint8_t ff_alternate_vertical_scan[64];

  78. extern const uint8_t ff_zigzag_direct[64];

  79. extern const uint8_t ff_zigzag248_direct[64];

  80. 

  81. /* pixel operations */

  82. #define MAX_NEG_CROP 1024

  83. 

  84. /* temporary */

  85. extern uint32_t ff_squareTbl[512];

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

  87. 

  88. /* VP3 DSP functions */

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

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

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

  92. 

  93. void ff_vp3_v_loop_filter_c(uint8_t *src, int stride, int *bounding_values);

  94. void ff_vp3_h_loop_filter_c(uint8_t *src, int stride, int *bounding_values);

  95. 

  96. /* 1/2^n downscaling functions from imgconvert.c */

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

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

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

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

  101. 

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

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

  104. 

  105. /* minimum alignment rules ;)

  106. If you notice errors in the align stuff, need more alignment for some ASM code

  107. for some CPU or need to use a function with less aligned data then send a mail

  108. to the ffmpeg-devel mailing list, ...

  109. 

  110. !warning These alignments might not match reality, (missing attribute((align))

  111. stuff somewhere possible).

  112. I (Michael) did not check them, these are just the alignments which I think

  113. could be reached easily ...

  114. 

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

  116. */

  117. 

  118. /*

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

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

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

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

  123. void clear_blocks_c(DCTELEM *blocks);

  124. */

  125. 

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

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

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

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

  130. 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);

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

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

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

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

  135. 

  136. #define DEF_OLD_QPEL(name)\

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

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

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

  140. 

  141. DEF_OLD_QPEL(qpel16_mc11_old_c)

  142. DEF_OLD_QPEL(qpel16_mc31_old_c)

  143. DEF_OLD_QPEL(qpel16_mc12_old_c)

  144. DEF_OLD_QPEL(qpel16_mc32_old_c)

  145. DEF_OLD_QPEL(qpel16_mc13_old_c)

  146. DEF_OLD_QPEL(qpel16_mc33_old_c)

  147. DEF_OLD_QPEL(qpel8_mc11_old_c)

  148. DEF_OLD_QPEL(qpel8_mc31_old_c)

  149. DEF_OLD_QPEL(qpel8_mc12_old_c)

  150. DEF_OLD_QPEL(qpel8_mc32_old_c)

  151. DEF_OLD_QPEL(qpel8_mc13_old_c)

  152. DEF_OLD_QPEL(qpel8_mc33_old_c)

  153. 

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

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

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

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

  158. }

  159. 

  160. /* motion estimation */

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

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

  163. 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))*/;

  164. 

  165. 

  166. // for snow slices

  167. typedef struct slice_buffer_s slice_buffer;

  168. 

  169. /**

  170.  * Scantable.

  171.  */

  172. typedef struct ScanTable{

  173.     const uint8_t *scantable;

  174.     uint8_t permutated[64];

  175.     uint8_t raster_end[64];

  176. #ifdef ARCH_PPC

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

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

  179. #endif

  180. } ScanTable;

  181. 

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

  183. 

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

  185.                          int block_w, int block_h,

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

  187. 

  188. /**

  189.  * DSPContext.

  190.  */

  191. typedef struct DSPContext {

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

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

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

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

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

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

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

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

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

  201.     /**

  202.      * translational global motion compensation.

  203.      */

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

  205.     /**

  206.      * global motion compensation.

  207.      */

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

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

  210.     void (*clear_block)(DCTELEM *block/*align 16*/);

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

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

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

  214. // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4

  215. 

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

  217.     me_cmp_func sse[5];

  218.     me_cmp_func hadamard8_diff[5];

  219.     me_cmp_func dct_sad[5];

  220.     me_cmp_func quant_psnr[5];

  221.     me_cmp_func bit[5];

  222.     me_cmp_func rd[5];

  223.     me_cmp_func vsad[5];

  224.     me_cmp_func vsse[5];

  225.     me_cmp_func nsse[5];

  226.     me_cmp_func w53[5];

  227.     me_cmp_func w97[5];

  228.     me_cmp_func dct_max[5];

  229.     me_cmp_func dct264_sad[5];

  230. 

  231.     me_cmp_func me_pre_cmp[5];

  232.     me_cmp_func me_cmp[5];

  233.     me_cmp_func me_sub_cmp[5];

  234.     me_cmp_func mb_cmp[5];

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

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

  237. 

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

  239.                              int size);

  240. 

  241.     /**

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

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

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

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

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

  247.      * @param pixels source

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

  249.      * @param h height

  250.      */

  251.     op_pixels_func put_pixels_tab[4][4];

  252. 

  253.     /**

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

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

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

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

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

  259.      * @param pixels source

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

  261.      * @param h height

  262.      */

  263.     op_pixels_func avg_pixels_tab[4][4];

  264. 

  265.     /**

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

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

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

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

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

  271.      * @param pixels source

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

  273.      * @param h height

  274.      */

  275.     op_pixels_func put_no_rnd_pixels_tab[4][4];

  276. 

  277.     /**

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

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

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

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

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

  283.      * @param pixels source

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

  285.      * @param h height

  286.      */

  287.     op_pixels_func avg_no_rnd_pixels_tab[4][4];

  288. 

  289.     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);

  290. 

  291.     /**

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

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

  294.      * positions<br>

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

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

  297.      * @param pixels source

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

  299.      * @param h height

  300.      */

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

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

  303. 

  304.     qpel_mc_func put_qpel_pixels_tab[2][16];

  305.     qpel_mc_func avg_qpel_pixels_tab[2][16];

  306.     qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];

  307.     qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];

  308.     qpel_mc_func put_mspel_pixels_tab[8];

  309. 

  310.     /**

  311.      * h264 Chroma MC

  312.      */

  313.     h264_chroma_mc_func put_h264_chroma_pixels_tab[3];

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

  315.     h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];

  316.     h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];

  317. 

  318.     qpel_mc_func put_h264_qpel_pixels_tab[4][16];

  319.     qpel_mc_func avg_h264_qpel_pixels_tab[4][16];

  320. 

  321.     qpel_mc_func put_2tap_qpel_pixels_tab[4][16];

  322.     qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];

  323. 

  324.     h264_weight_func weight_h264_pixels_tab[10];

  325.     h264_biweight_func biweight_h264_pixels_tab[10];

  326. 

  327.     /* AVS specific */

  328.     qpel_mc_func put_cavs_qpel_pixels_tab[2][16];

  329.     qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];

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

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

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

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

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

  335. 

  336.     me_cmp_func pix_abs[2][4];

  337. 

  338.     /* huffyuv specific */

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

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

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

  342.     /**

  343.      * subtract huffyuv's variant of median prediction

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

  345.      */

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

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

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

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

  350. 

  351.     void (*h264_v_loop_filter_luma)(uint8_t *pix/*align 16*/, int stride, int alpha, int beta, int8_t *tc0);

  352.     void (*h264_h_loop_filter_luma)(uint8_t *pix/*align 4 */, int stride, int alpha, int beta, int8_t *tc0);

  353.     /* v/h_loop_filter_luma_intra: align 16 */

  354.     void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);

  355.     void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);

  356.     void (*h264_v_loop_filter_chroma)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta, int8_t *tc0);

  357.     void (*h264_h_loop_filter_chroma)(uint8_t *pix/*align 4*/, int stride, int alpha, int beta, int8_t *tc0);

  358.     void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);

  359.     void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);

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

  361.     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],

  362.                                       int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field);

  363. 

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

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

  366. 

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

  368. 

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

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

  371. 

  372.     void (*vp3_v_loop_filter)(uint8_t *src, int stride, int *bounding_values);

  373.     void (*vp3_h_loop_filter)(uint8_t *src, int stride, int *bounding_values);

  374. 

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

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

  377.     void (*ac3_downmix)(float (*samples)[256], float (*matrix)[2], int out_ch, int in_ch, int len);

  378.     /* no alignment needed */

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

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

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

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

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

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

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

  386.     void (*vector_fmul_window)(float *dst, const float *src0, const float *src1, const float *win, float add_bias, int len);

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

  388.     void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len);

  389. 

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

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

  392.     void (*float_to_int16)(int16_t *dst, const float *src, long len);

  393.     void (*float_to_int16_interleave)(int16_t *dst, const float **src, long len, int channels);

  394. 

  395.     /* (I)DCT */

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

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

  398. 

  399.     /* IDCT really*/

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

  401. 

  402.     /**

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

  404.      * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)

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

  406.      */

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

  408. 

  409.     /**

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

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

  412.      */

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

  414. 

  415.     /**

  416.      * idct input permutation.

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

  418.      * IDCT)

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

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

  421.      * an example to avoid confusion:

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

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

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

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

  426.      */

  427.     uint8_t idct_permutation[64];

  428.     int idct_permutation_type;

  429. #define FF_NO_IDCT_PERM 1

  430. #define FF_LIBMPEG2_IDCT_PERM 2

  431. #define FF_SIMPLE_IDCT_PERM 3

  432. #define FF_TRANSPOSE_IDCT_PERM 4

  433. #define FF_PARTTRANS_IDCT_PERM 5

  434. #define FF_SSE2_IDCT_PERM 6

  435. 

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

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

  438. #define BASIS_SHIFT 16

  439. #define RECON_SHIFT 6

  440. 

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

  442. #define EDGE_WIDTH 16

  443. 

  444.     /* h264 functions */

  445.     /* NOTE!!! if you implement any of h264_idct8_add, h264_idct8_add4 then you must implement all of them

  446.        NOTE!!! if you implement any of h264_idct_add, h264_idct_add16, h264_idct_add16intra, h264_idct_add8 then you must implement all of them

  447.         The reason for above, is that no 2 out of one list may use a different permutation.

  448.     */

  449.     void (*h264_idct_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);

  450.     void (*h264_idct8_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);

  451.     void (*h264_idct_dc_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);

  452.     void (*h264_idct8_dc_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);

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

  454.     void (*h264_idct_add16)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);

  455.     void (*h264_idct8_add4)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);

  456.     void (*h264_idct_add8)(uint8_t **dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);

  457.     void (*h264_idct_add16intra)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);

  458. 

  459.     /* snow wavelet */

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

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

  462.     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);

  463. 

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

  465. 

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

  467. 

  468.     /* vc1 functions */

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

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

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

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

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

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

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

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

  477.      */

  478.     op_pixels_func put_vc1_mspel_pixels_tab[16];

  479. 

  480.     /* intrax8 functions */

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

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

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

  484. 

  485.     /* ape functions */

  486.     /**

  487.      * Add contents of the second vector to the first one.

  488.      * @param len length of vectors, should be multiple of 16

  489.      */

  490.     void (*add_int16)(int16_t *v1/*align 16*/, int16_t *v2, int len);

  491.     /**

  492.      * Add contents of the second vector to the first one.

  493.      * @param len length of vectors, should be multiple of 16

  494.      */

  495.     void (*sub_int16)(int16_t *v1/*align 16*/, int16_t *v2, int len);

  496.     /**

  497.      * Calculate scalar product of two vectors.

  498.      * @param len length of vectors, should be multiple of 16

  499.      * @param shift number of bits to discard from product

  500.      */

  501.     int32_t (*scalarproduct_int16)(int16_t *v1, int16_t *v2/*align 16*/, int len, int shift);

  502. 

  503.     /* rv30 functions */

  504.     qpel_mc_func put_rv30_tpel_pixels_tab[4][16];

  505.     qpel_mc_func avg_rv30_tpel_pixels_tab[4][16];

  506. 

  507.     /* rv40 functions */

  508.     qpel_mc_func put_rv40_qpel_pixels_tab[4][16];

  509.     qpel_mc_func avg_rv40_qpel_pixels_tab[4][16];

  510.     h264_chroma_mc_func put_rv40_chroma_pixels_tab[3];

  511.     h264_chroma_mc_func avg_rv40_chroma_pixels_tab[3];

  512. } DSPContext;

  513. 

  514. void dsputil_static_init(void);

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

  516. 

  517. int ff_check_alignment(void);

  518. 

  519. /**

  520.  * permute block according to permuatation.

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

  522.  */

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

  524. 

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

  526. 

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

  528. 

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

  530. {

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

  532. }

  533. 

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

  535. {

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

  537. }

  538. 

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

  540.     switch(type&0xFF){

  541.     default:

  542.     case FF_CMP_SAD:

  543.         return lambda>>FF_LAMBDA_SHIFT;

  544.     case FF_CMP_DCT:

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

  546.     case FF_CMP_W53:

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

  548.     case FF_CMP_W97:

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

  550.     case FF_CMP_SATD:

  551.     case FF_CMP_DCT264:

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

  553.     case FF_CMP_RD:

  554.     case FF_CMP_PSNR:

  555.     case FF_CMP_SSE:

  556.     case FF_CMP_NSSE:

  557.         return lambda2>>FF_LAMBDA_SHIFT;

  558.     case FF_CMP_BIT:

  559.         return 1;

  560.     }

  561. }

  562. 

  563. /**

  564.  * Empty mmx state.

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

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

  567.  */

  568. #define emms_c()

  569. 

  570. /* should be defined by architectures supporting

  571.    one or more MultiMedia extension */

  572. int mm_support(void);

  573. 

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

  575. void dsputil_init_arm(DSPContext* c, AVCodecContext *avctx);

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

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

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

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

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

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

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

  583. 

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

  585. 

  586. #if defined(HAVE_MMX)

  587. 

  588. #undef emms_c

  589. 

  590. extern int mm_flags;

  591. 

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

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

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

  595. 

  596. static inline void emms(void)

  597. {

  598.     __asm__ volatile ("emms;":::"memory");

  599. }

  600. 

  601. 

  602. #define emms_c() \

  603. {\

  604.     if (mm_flags & FF_MM_MMX)\

  605.         emms();\

  606. }

  607. 

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

  609. 

  610. #elif defined(ARCH_ARM)

  611. 

  612. extern int mm_flags;

  613. 

  614. #ifdef HAVE_NEON

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

  616. #   define STRIDE_ALIGN 16

  617. #endif

  618. 

  619. #elif defined(ARCH_PPC)

  620. 

  621. extern int mm_flags;

  622. 

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

  624. #define STRIDE_ALIGN 16

  625. 

  626. #elif defined(HAVE_MMI)

  627. 

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

  629. #define STRIDE_ALIGN 16

  630. 

  631. #else

  632. 

  633. #define mm_flags 0

  634. #define mm_support() 0

  635. 

  636. #endif

  637. 

  638. #ifndef DECLARE_ALIGNED_8

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

  640. #endif

  641. 

  642. #ifndef STRIDE_ALIGN

  643. #   define STRIDE_ALIGN 8

  644. #endif

  645. 

  646. /* PSNR */

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

  648.               int orig_linesize[3], int coded_linesize,

  649.               AVCodecContext *avctx);

  650. 

  651. /* FFT computation */

  652. 

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

  654.    FFTSample type */

  655. typedef float FFTSample;

  656. 

  657. struct MDCTContext;

  658. 

  659. typedef struct FFTComplex {

  660.     FFTSample re, im;

  661. } FFTComplex;

  662. 

  663. typedef struct FFTContext {

  664.     int nbits;

  665.     int inverse;

  666.     uint16_t *revtab;

  667.     FFTComplex *exptab;

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

  669.     FFTComplex *tmp_buf;

  670.     void (*fft_permute)(struct FFTContext *s, FFTComplex *z);

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

  672.     void (*imdct_calc)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);

  673.     void (*imdct_half)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);

  674. } FFTContext;

  675. 

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

  677. void ff_fft_permute_c(FFTContext *s, FFTComplex *z);

  678. void ff_fft_permute_sse(FFTContext *s, FFTComplex *z);

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

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

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

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

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

  684. 

  685. static inline void ff_fft_permute(FFTContext *s, FFTComplex *z)

  686. {

  687.     s->fft_permute(s, z);

  688. }

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

  690. {

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

  692. }

  693. void ff_fft_end(FFTContext *s);

  694. 

  695. /* MDCT computation */

  696. 

  697. typedef struct MDCTContext {

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

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

  700.     /* pre/post rotation tables */

  701.     FFTSample *tcos;

  702.     FFTSample *tsin;

  703.     FFTContext fft;

  704. } MDCTContext;

  705. 

  706. static inline void ff_imdct_calc(MDCTContext *s, FFTSample *output, const FFTSample *input)

  707. {

  708.     s->fft.imdct_calc(s, output, input);

  709. }

  710. static inline void ff_imdct_half(MDCTContext *s, FFTSample *output, const FFTSample *input)

  711. {

  712.     s->fft.imdct_half(s, output, input);

  713. }

  714. 

  715. /**

  716.  * Generate a Kaiser-Bessel Derived Window.

  717.  * @param   window  pointer to half window

  718.  * @param   alpha   determines window shape

  719.  * @param   n       size of half window

  720.  */

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

  722. 

  723. /**

  724.  * Generate a sine window.

  725.  * @param   window  pointer to half window

  726.  * @param   n       size of half window

  727.  */

  728. void ff_sine_window_init(float *window, int n);

  729. extern float ff_sine_128 [ 128];

  730. extern float ff_sine_256 [ 256];

  731. extern float ff_sine_512 [ 512];

  732. extern float ff_sine_1024[1024];

  733. extern float ff_sine_2048[2048];

  734. extern float *ff_sine_windows[5];

  735. 

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

  737. void ff_imdct_calc_c(MDCTContext *s, FFTSample *output, const FFTSample *input);

  738. void ff_imdct_half_c(MDCTContext *s, FFTSample *output, const FFTSample *input);

  739. void ff_imdct_calc_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);

  740. void ff_imdct_half_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);

  741. void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);

  742. void ff_imdct_half_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);

  743. void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);

  744. void ff_imdct_half_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);

  745. void ff_mdct_calc(MDCTContext *s, FFTSample *out, const FFTSample *input);

  746. void ff_mdct_end(MDCTContext *s);

  747. 

  748. #define WRAPPER8_16(name8, name16)\

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

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

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

  752. }

  753. 

  754. #define WRAPPER8_16_SQ(name8, name16)\

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

  756.     int score=0;\

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

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

  759.     if(h==16){\

  760.         dst += 8*stride;\

  761.         src += 8*stride;\

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

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

  764.     }\

  765.     return score;\

  766. }

  767. 

  768. 

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

  770. {

  771.     int i;

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

  773.     {

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

  775.         dst+=dstStride;

  776.         src+=srcStride;

  777.     }

  778. }

  779. 

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

  781. {

  782.     int i;

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

  784.     {

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

  786.         dst+=dstStride;

  787.         src+=srcStride;

  788.     }

  789. }

  790. 

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

  792. {

  793.     int i;

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

  795.     {

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

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

  798.         dst+=dstStride;

  799.         src+=srcStride;

  800.     }

  801. }

  802. 

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

  804. {

  805.     int i;

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

  807.     {

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

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

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

  811.         dst+=dstStride;

  812.         src+=srcStride;

  813.     }

  814. }

  815. 

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

  817. {

  818.     int i;

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

  820.     {

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

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

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

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

  825.         dst+=dstStride;

  826.         src+=srcStride;

  827.     }

  828. }

  829. 

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

  831. {

  832.     int i;

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

  834.     {

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

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

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

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

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

  840.         dst+=dstStride;

  841.         src+=srcStride;

  842.     }

  843. }

  844. 

  845. #endif /* AVCODEC_DSPUTIL_H */