1/2 resolution decoding
[libav.git] / libavcodec / dsputil.h
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1/*
2 * DSP utils
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
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20
21/**
22 * @file dsputil.h
983e3246 23 * DSP utils.
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24 * note, many functions in here may use MMX which trashes the FPU state, it is
25 * absolutely necessary to call emms_c() between dsp & float/double code
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26 */
27
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28#ifndef DSPUTIL_H
29#define DSPUTIL_H
30
31#include "common.h"
43f1708f 32#include "avcodec.h"
de6d9b64 33
24641185 34
44eb4951 35//#define DEBUG
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36/* dct code */
37typedef short DCTELEM;
38
03c94ede 39void fdct_ifast (DCTELEM *data);
48b1f800 40void fdct_ifast248 (DCTELEM *data);
28db7fce 41void ff_jpeg_fdct_islow (DCTELEM *data);
10acc479 42void ff_fdct248_islow (DCTELEM *data);
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43
44void j_rev_dct (DCTELEM *data);
178fcca8 45void j_rev_dct4 (DCTELEM *data);
de6d9b64 46
3f09f52a 47void ff_fdct_mmx(DCTELEM *block);
cf3bf5bb 48void ff_fdct_mmx2(DCTELEM *block);
8fd19ab2 49void ff_fdct_sse2(DCTELEM *block);
de6d9b64 50
e0eac44e 51/* encoding scans */
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52extern const uint8_t ff_alternate_horizontal_scan[64];
53extern const uint8_t ff_alternate_vertical_scan[64];
54extern const uint8_t ff_zigzag_direct[64];
10acc479 55extern const uint8_t ff_zigzag248_direct[64];
5a240838 56
de6d9b64 57/* pixel operations */
f2e92ef2 58#define MAX_NEG_CROP 1024
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59
60/* temporary */
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61extern uint32_t squareTbl[512];
62extern uint8_t cropTbl[256 + 2 * MAX_NEG_CROP];
de6d9b64 63
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64/* VP3 DSP functions */
65void vp3_dsp_init_c(void);
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66void vp3_idct_c(int16_t *input_data, int16_t *dequant_matrix,
67 int coeff_count, DCTELEM *output_data);
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68
69void vp3_dsp_init_mmx(void);
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70void vp3_idct_mmx(int16_t *input_data, int16_t *dequant_matrix,
71 int coeff_count, DCTELEM *output_data);
44cb64ee 72
38acbc3c 73void vp3_dsp_init_sse2(void);
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74void vp3_idct_sse2(int16_t *input_data, int16_t *dequant_matrix,
75 int coeff_count, DCTELEM *output_data);
de6d9b64 76
b7c27ee6 77/* minimum alignment rules ;)
eb4b3dd3 78if u notice errors in the align stuff, need more alignment for some asm code for some cpu
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79or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
80
81!warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
82i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
de6d9b64 83
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84!future video codecs might need functions with less strict alignment
85*/
86
eb4b3dd3 87/*
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88void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
89void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
90void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
91void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
649c00c9 92void clear_blocks_c(DCTELEM *blocks);
eb4b3dd3 93*/
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94
95/* add and put pixel (decoding) */
b7c27ee6 96// blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
7d67aa9b 97//h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
0c1a9eda 98typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
669ac79c 99typedef 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);
0c1a9eda 100typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
0da71265 101typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
b3184779 102
db794953 103#define DEF_OLD_QPEL(name)\
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104void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
105void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
106void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
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107
108DEF_OLD_QPEL(qpel16_mc11_old_c)
109DEF_OLD_QPEL(qpel16_mc31_old_c)
110DEF_OLD_QPEL(qpel16_mc12_old_c)
111DEF_OLD_QPEL(qpel16_mc32_old_c)
112DEF_OLD_QPEL(qpel16_mc13_old_c)
113DEF_OLD_QPEL(qpel16_mc33_old_c)
114DEF_OLD_QPEL(qpel8_mc11_old_c)
115DEF_OLD_QPEL(qpel8_mc31_old_c)
116DEF_OLD_QPEL(qpel8_mc12_old_c)
117DEF_OLD_QPEL(qpel8_mc32_old_c)
118DEF_OLD_QPEL(qpel8_mc13_old_c)
119DEF_OLD_QPEL(qpel8_mc33_old_c)
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120
121#define CALL_2X_PIXELS(a, b, n)\
122static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
123 b(block , pixels , line_size, h);\
124 b(block+n, pixels+n, line_size, h);\
125}
44eb4951 126
de6d9b64 127/* motion estimation */
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128// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
129// allthough currently h<4 is not used as functions with width <8 are not used and neither implemented
bb198e19 130typedef 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))*/;
1457ab52 131
0da71265 132
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133/**
134 * DSPContext.
135 */
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136typedef struct DSPContext {
137 /* pixel ops : interface with DCT */
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138 void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
139 void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
140 void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
f9ed9d85 141 void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
0c1a9eda 142 void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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143 /**
144 * translational global motion compensation.
145 */
0c1a9eda 146 void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
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147 /**
148 * global motion compensation.
149 */
0c1a9eda 150 void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
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151 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
152 void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
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153 int (*pix_sum)(uint8_t * pix, int line_size);
154 int (*pix_norm1)(uint8_t * pix, int line_size);
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155// 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
156
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157 me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
158 me_cmp_func sse[5];
159 me_cmp_func hadamard8_diff[5];
160 me_cmp_func dct_sad[5];
161 me_cmp_func quant_psnr[5];
162 me_cmp_func bit[5];
163 me_cmp_func rd[5];
164 me_cmp_func vsad[5];
165 me_cmp_func vsse[5];
e6a2ac34 166 me_cmp_func nsse[5];
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167 me_cmp_func w53[5];
168 me_cmp_func w97[5];
1457ab52 169
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170 me_cmp_func me_pre_cmp[5];
171 me_cmp_func me_cmp[5];
172 me_cmp_func me_sub_cmp[5];
173 me_cmp_func mb_cmp[5];
622348f9 174 me_cmp_func ildct_cmp[5]; //only width 16 used
eb4b3dd3 175
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176 /**
177 * Halfpel motion compensation with rounding (a+b+1)>>1.
669ac79c 178 * this is an array[4][4] of motion compensation funcions for 4
e5771f4f 179 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
5755c27f 180 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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181 * @param block destination where the result is stored
182 * @param pixels source
183 * @param line_size number of bytes in a horizontal line of block
184 * @param h height
185 */
669ac79c 186 op_pixels_func put_pixels_tab[4][4];
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187
188 /**
189 * Halfpel motion compensation with rounding (a+b+1)>>1.
4e8eed2f 190 * This is an array[4][4] of motion compensation functions for 4
e5771f4f 191 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
5755c27f 192 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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193 * @param block destination into which the result is averaged (a+b+1)>>1
194 * @param pixels source
195 * @param line_size number of bytes in a horizontal line of block
196 * @param h height
197 */
da3b9756 198 op_pixels_func avg_pixels_tab[4][4];
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199
200 /**
201 * Halfpel motion compensation with no rounding (a+b)>>1.
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202 * this is an array[2][4] of motion compensation funcions for 2
203 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
5755c27f 204 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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205 * @param block destination where the result is stored
206 * @param pixels source
207 * @param line_size number of bytes in a horizontal line of block
208 * @param h height
209 */
dbc56b39 210 op_pixels_func put_no_rnd_pixels_tab[4][4];
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211
212 /**
213 * Halfpel motion compensation with no rounding (a+b)>>1.
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214 * this is an array[2][4] of motion compensation funcions for 2
215 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
5755c27f 216 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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217 * @param block destination into which the result is averaged (a+b)>>1
218 * @param pixels source
219 * @param line_size number of bytes in a horizontal line of block
220 * @param h height
221 */
dbc56b39 222 op_pixels_func avg_no_rnd_pixels_tab[4][4];
669ac79c 223
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224 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);
225
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226 /**
227 * Thirdpel motion compensation with rounding (a+b+1)>>1.
228 * this is an array[12] of motion compensation funcions for the 9 thirdpel positions<br>
229 * *pixels_tab[ xthirdpel + 4*ythirdpel ]
230 * @param block destination where the result is stored
231 * @param pixels source
232 * @param line_size number of bytes in a horizontal line of block
233 * @param h height
234 */
235 tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
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236 tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
237
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238 qpel_mc_func put_qpel_pixels_tab[2][16];
239 qpel_mc_func avg_qpel_pixels_tab[2][16];
240 qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
241 qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
1457ab52 242 qpel_mc_func put_mspel_pixels_tab[8];
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243
244 /**
245 * h264 Chram MC
246 */
247 h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
248 h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
eb4b3dd3 249
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250 qpel_mc_func put_h264_qpel_pixels_tab[3][16];
251 qpel_mc_func avg_h264_qpel_pixels_tab[3][16];
252
bb198e19 253 me_cmp_func pix_abs[2][4];
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254
255 /* huffyuv specific */
11f18faf 256 void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
1457ab52 257 void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
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258 /**
259 * subtract huffyuv's variant of median prediction
260 * note, this might read from src1[-1], src2[-1]
261 */
262 void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
3d2e8cce 263 void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
b0368839 264
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265 void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
266 void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
267
fdbbf2e0 268 void (*h261_loop_filter)(uint8_t *src, int stride);
c6148de2 269
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270 /* (I)DCT */
271 void (*fdct)(DCTELEM *block/* align 16*/);
10acc479 272 void (*fdct248)(DCTELEM *block/* align 16*/);
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273
274 /* IDCT really*/
275 void (*idct)(DCTELEM *block/* align 16*/);
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276
277 /**
77c92c2d 278 * block -> idct -> clip to unsigned 8 bit -> dest.
24641185 279 * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
a1adf436 280 * @param line_size size in bytes of a horizotal line of dest
24641185 281 */
b0368839 282 void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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283
284 /**
285 * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
a1adf436 286 * @param line_size size in bytes of a horizotal line of dest
24641185 287 */
b0368839 288 void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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289
290 /**
77c92c2d 291 * idct input permutation.
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292 * several optimized IDCTs need a permutated input (relative to the normal order of the reference
293 * IDCT)
294 * this permutation must be performed before the idct_put/add, note, normally this can be merged
295 * with the zigzag/alternate scan<br>
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296 * an example to avoid confusion:
297 * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
298 * - (x -> referece dct -> reference idct -> x)
299 * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
300 * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
301 */
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302 uint8_t idct_permutation[64];
303 int idct_permutation_type;
304#define FF_NO_IDCT_PERM 1
305#define FF_LIBMPEG2_IDCT_PERM 2
306#define FF_SIMPLE_IDCT_PERM 3
307#define FF_TRANSPOSE_IDCT_PERM 4
308
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309 int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
310 void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
311#define BASIS_SHIFT 16
312#define RECON_SHIFT 6
313
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314 /**
315 * This function handles any initialization for the VP3 DSP functions.
316 */
317 void (*vp3_dsp_init)(void);
318
319 /**
320 * This function is responsible for taking a block of zigzag'd,
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321 * quantized DCT coefficients and reconstructing the original block of
322 * samples.
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323 * @param input_data 64 zigzag'd, quantized DCT coefficients
324 * @param dequant_matrix 64 zigzag'd quantizer coefficients
325 * @param coeff_count index of the last coefficient
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326 * @param output_samples space for 64 DCTELEMs where the transformed
327 * samples will be stored
44cb64ee 328 */
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329 void (*vp3_idct)(int16_t *input_data, int16_t *dequant_matrix,
330 int coeff_count, DCTELEM *output_samples);
44cb64ee 331
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332} DSPContext;
333
59cf08ce 334void dsputil_static_init(void);
b0368839 335void dsputil_init(DSPContext* p, AVCodecContext *avctx);
de6d9b64 336
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337/**
338 * permute block according to permuatation.
339 * @param last last non zero element in scantable order
340 */
0c1a9eda 341void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
e0eac44e 342
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343void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
344
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345#define BYTE_VEC32(c) ((c)*0x01010101UL)
346
347static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
348{
349 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
350}
351
352static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
353{
354 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
355}
356
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357static inline int get_penalty_factor(int lambda, int lambda2, int type){
358 switch(type&0xFF){
359 default:
360 case FF_CMP_SAD:
361 return lambda>>FF_LAMBDA_SHIFT;
362 case FF_CMP_DCT:
363 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
364 case FF_CMP_W53:
365 return (4*lambda)>>(FF_LAMBDA_SHIFT);
366 case FF_CMP_W97:
367 return (2*lambda)>>(FF_LAMBDA_SHIFT);
368 case FF_CMP_SATD:
369 return (2*lambda)>>FF_LAMBDA_SHIFT;
370 case FF_CMP_RD:
371 case FF_CMP_PSNR:
372 case FF_CMP_SSE:
373 case FF_CMP_NSSE:
374 return lambda2>>FF_LAMBDA_SHIFT;
375 case FF_CMP_BIT:
376 return 1;
377 }
378}
379
24641185 380/**
77c92c2d 381 * Empty mmx state.
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382 * this must be called between any dsp function and float/double code.
383 * for example sin(); dsp->idct_put(); emms_c(); cos()
384 */
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385#define emms_c()
386
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387/* should be defined by architectures supporting
388 one or more MultiMedia extension */
389int mm_support(void);
390
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391#define __align16 __attribute__ ((aligned (16)))
392
3d03c0a2 393#if defined(HAVE_MMX)
de6d9b64 394
18f77016 395#undef emms_c
eb4b3dd3 396
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397#define MM_MMX 0x0001 /* standard MMX */
398#define MM_3DNOW 0x0004 /* AMD 3DNOW */
399#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
400#define MM_SSE 0x0008 /* SSE functions */
401#define MM_SSE2 0x0010 /* PIV SSE2 functions */
402
403extern int mm_flags;
404
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405void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
406void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
f9ed9d85 407void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
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408
409static inline void emms(void)
410{
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411 __asm __volatile ("emms;":::"memory");
412}
413
1457ab52 414
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415#define emms_c() \
416{\
417 if (mm_flags & MM_MMX)\
418 emms();\
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419}
420
421#define __align8 __attribute__ ((aligned (8)))
422
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423void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
424void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
2720569a 425
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426#elif defined(ARCH_ARMV4L)
427
3d03c0a2 428/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
92a69cf8 429 line optimizations */
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430#define __align8 __attribute__ ((aligned (4)))
431
b0368839 432void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
3d03c0a2 433
c34270f5 434#elif defined(HAVE_MLIB)
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435
436/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
437#define __align8 __attribute__ ((aligned (8)))
438
b0368839 439void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
c34270f5 440
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441#elif defined(ARCH_SPARC)
442
443/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
444#define __align8 __attribute__ ((aligned (8)))
445void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
446
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447#elif defined(ARCH_ALPHA)
448
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449#define __align8 __attribute__ ((aligned (8)))
450
b0368839 451void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
1e98dffb 452
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453#elif defined(ARCH_POWERPC)
454
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455#define MM_ALTIVEC 0x0001 /* standard AltiVec */
456
457extern int mm_flags;
458
3b991c54 459#if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN)
9a197a24 460#define pixel altivec_pixel
3b991c54 461#include <altivec.h>
9a197a24 462#undef pixel
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463#endif
464
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465#define __align8 __attribute__ ((aligned (16)))
466
b0368839 467void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
59925ef2 468
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469#elif defined(HAVE_MMI)
470
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471#define __align8 __attribute__ ((aligned (16)))
472
b0368839 473void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
d46aba26 474
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475#elif defined(ARCH_SH4)
476
477#define __align8 __attribute__ ((aligned (8)))
478
479void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
480
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481#else
482
483#define __align8
484
485#endif
486
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487#ifdef __GNUC__
488
489struct unaligned_64 { uint64_t l; } __attribute__((packed));
490struct unaligned_32 { uint32_t l; } __attribute__((packed));
669ac79c 491struct unaligned_16 { uint16_t l; } __attribute__((packed));
6d4985bb 492
669ac79c 493#define LD16(a) (((const struct unaligned_16 *) (a))->l)
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494#define LD32(a) (((const struct unaligned_32 *) (a))->l)
495#define LD64(a) (((const struct unaligned_64 *) (a))->l)
496
497#define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
498
499#else /* __GNUC__ */
500
669ac79c 501#define LD16(a) (*((uint16_t*)(a)))
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502#define LD32(a) (*((uint32_t*)(a)))
503#define LD64(a) (*((uint64_t*)(a)))
504
505#define ST32(a, b) *((uint32_t*)(a)) = (b)
506
507#endif /* !__GNUC__ */
508
43f1708f 509/* PSNR */
0c1a9eda 510void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
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511 int orig_linesize[3], int coded_linesize,
512 AVCodecContext *avctx);
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513
514/* FFT computation */
515
516/* NOTE: soon integer code will be added, so you must use the
517 FFTSample type */
518typedef float FFTSample;
519
520typedef struct FFTComplex {
521 FFTSample re, im;
522} FFTComplex;
523
524typedef struct FFTContext {
525 int nbits;
526 int inverse;
527 uint16_t *revtab;
528 FFTComplex *exptab;
529 FFTComplex *exptab1; /* only used by SSE code */
530 void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
531} FFTContext;
532
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533int ff_fft_init(FFTContext *s, int nbits, int inverse);
534void ff_fft_permute(FFTContext *s, FFTComplex *z);
535void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
536void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
537void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
8d268a7d 538
68951ecf 539static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
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540{
541 s->fft_calc(s, z);
542}
68951ecf 543void ff_fft_end(FFTContext *s);
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544
545/* MDCT computation */
546
547typedef struct MDCTContext {
548 int n; /* size of MDCT (i.e. number of input data * 2) */
549 int nbits; /* n = 2^nbits */
550 /* pre/post rotation tables */
551 FFTSample *tcos;
552 FFTSample *tsin;
553 FFTContext fft;
554} MDCTContext;
555
82696bee 556int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
eb4b3dd3 557void ff_imdct_calc(MDCTContext *s, FFTSample *output,
bb6f5690 558 const FFTSample *input, FFTSample *tmp);
eb4b3dd3 559void ff_mdct_calc(MDCTContext *s, FFTSample *out,
bb6f5690 560 const FFTSample *input, FFTSample *tmp);
82696bee 561void ff_mdct_end(MDCTContext *s);
bb6f5690 562
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563#define WARPER8_16(name8, name16)\
564static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
565 return name8(s, dst , src , stride, h)\
566 +name8(s, dst+8 , src+8 , stride, h);\
567}
568
569#define WARPER8_16_SQ(name8, name16)\
570static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
571 int score=0;\
572 score +=name8(s, dst , src , stride, 8);\
573 score +=name8(s, dst+8 , src+8 , stride, 8);\
574 if(h==16){\
575 dst += 8*stride;\
576 src += 8*stride;\
577 score +=name8(s, dst , src , stride, 8);\
578 score +=name8(s, dst+8 , src+8 , stride, 8);\
579 }\
580 return score;\
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581}
582
95e2ce4a 583#ifndef HAVE_LRINTF
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584/* XXX: add ISOC specific test to avoid specific BSD testing. */
585/* better than nothing implementation. */
6234d753 586/* btw, rintf() is existing on fbsd too -- alex */
91d6655a 587static always_inline long int lrintf(float x)
9d85cbd9 588{
ea937d01 589#ifdef CONFIG_WIN32
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590# ifdef ARCH_X86
591 int32_t i;
592 asm volatile(
593 "fistpl %0\n\t"
594 : "=m" (i) : "t" (x) : "st"
595 );
596 return i;
597# else
ea937d01 598 /* XXX: incorrect, but make it compile */
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599 return (int)(x + (x < 0 ? -0.5 : 0.5));
600# endif
ea937d01 601#else
9d85cbd9 602 return (int)(rint(x));
ea937d01 603#endif
9d85cbd9 604}
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605#else
606#ifndef _ISOC9X_SOURCE
607#define _ISOC9X_SOURCE
608#endif
609#include <math.h>
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610#endif
611
de6d9b64 612#endif