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ff4ec49e FB |
1 | /* |
2 | * DSP utils | |
3 | * Copyright (c) 2000, 2001, 2002 Fabrice Bellard. | |
4 | * | |
5 | * This library is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2 of the License, or (at your option) any later version. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
24641185 MN |
19 | |
20 | /** | |
21 | * @file dsputil.h | |
983e3246 | 22 | * DSP utils. |
5755c27f MN |
23 | * note, many functions in here may use MMX which trashes the FPU state, it is |
24 | * absolutely necessary to call emms_c() between dsp & float/double code | |
24641185 MN |
25 | */ |
26 | ||
de6d9b64 FB |
27 | #ifndef DSPUTIL_H |
28 | #define DSPUTIL_H | |
29 | ||
30 | #include "common.h" | |
43f1708f | 31 | #include "avcodec.h" |
de6d9b64 | 32 | |
24641185 | 33 | |
44eb4951 | 34 | //#define DEBUG |
de6d9b64 FB |
35 | /* dct code */ |
36 | typedef short DCTELEM; | |
0e15384d | 37 | //typedef int DCTELEM; |
de6d9b64 | 38 | |
03c94ede | 39 | void fdct_ifast (DCTELEM *data); |
28db7fce | 40 | void ff_jpeg_fdct_islow (DCTELEM *data); |
de6d9b64 FB |
41 | |
42 | void j_rev_dct (DCTELEM *data); | |
43 | ||
3f09f52a | 44 | void ff_fdct_mmx(DCTELEM *block); |
de6d9b64 | 45 | |
e0eac44e | 46 | /* encoding scans */ |
0c1a9eda ZK |
47 | extern const uint8_t ff_alternate_horizontal_scan[64]; |
48 | extern const uint8_t ff_alternate_vertical_scan[64]; | |
49 | extern const uint8_t ff_zigzag_direct[64]; | |
5a240838 | 50 | |
de6d9b64 FB |
51 | /* pixel operations */ |
52 | #define MAX_NEG_CROP 384 | |
53 | ||
54 | /* temporary */ | |
0c1a9eda ZK |
55 | extern uint32_t squareTbl[512]; |
56 | extern uint8_t cropTbl[256 + 2 * MAX_NEG_CROP]; | |
de6d9b64 | 57 | |
de6d9b64 | 58 | |
b7c27ee6 | 59 | /* minimum alignment rules ;) |
eb4b3dd3 | 60 | if u notice errors in the align stuff, need more alignment for some asm code for some cpu |
b7c27ee6 MN |
61 | or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ... |
62 | ||
63 | !warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible) | |
64 | i (michael) didnt check them, these are just the alignents which i think could be reached easily ... | |
de6d9b64 | 65 | |
b7c27ee6 MN |
66 | !future video codecs might need functions with less strict alignment |
67 | */ | |
68 | ||
eb4b3dd3 | 69 | /* |
0c1a9eda ZK |
70 | void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size); |
71 | void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride); | |
72 | void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size); | |
73 | void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size); | |
649c00c9 | 74 | void clear_blocks_c(DCTELEM *blocks); |
eb4b3dd3 | 75 | */ |
de6d9b64 FB |
76 | |
77 | /* add and put pixel (decoding) */ | |
b7c27ee6 | 78 | // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16 |
0c1a9eda ZK |
79 | typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h); |
80 | typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride); | |
0da71265 | 81 | typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y); |
b3184779 | 82 | |
db794953 | 83 | #define DEF_OLD_QPEL(name)\ |
0c1a9eda ZK |
84 | void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\ |
85 | void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\ | |
86 | void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride); | |
db794953 MN |
87 | |
88 | DEF_OLD_QPEL(qpel16_mc11_old_c) | |
89 | DEF_OLD_QPEL(qpel16_mc31_old_c) | |
90 | DEF_OLD_QPEL(qpel16_mc12_old_c) | |
91 | DEF_OLD_QPEL(qpel16_mc32_old_c) | |
92 | DEF_OLD_QPEL(qpel16_mc13_old_c) | |
93 | DEF_OLD_QPEL(qpel16_mc33_old_c) | |
94 | DEF_OLD_QPEL(qpel8_mc11_old_c) | |
95 | DEF_OLD_QPEL(qpel8_mc31_old_c) | |
96 | DEF_OLD_QPEL(qpel8_mc12_old_c) | |
97 | DEF_OLD_QPEL(qpel8_mc32_old_c) | |
98 | DEF_OLD_QPEL(qpel8_mc13_old_c) | |
99 | DEF_OLD_QPEL(qpel8_mc33_old_c) | |
b3184779 MN |
100 | |
101 | #define CALL_2X_PIXELS(a, b, n)\ | |
102 | static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\ | |
103 | b(block , pixels , line_size, h);\ | |
104 | b(block+n, pixels+n, line_size, h);\ | |
105 | } | |
44eb4951 | 106 | |
de6d9b64 FB |
107 | /* motion estimation */ |
108 | ||
0c1a9eda | 109 | typedef int (*op_pixels_abs_func)(uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size)/* __attribute__ ((const))*/; |
1457ab52 | 110 | |
0c1a9eda | 111 | typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size)/* __attribute__ ((const))*/; |
1457ab52 | 112 | |
0da71265 | 113 | |
24641185 MN |
114 | /** |
115 | * DSPContext. | |
116 | */ | |
eb4b3dd3 ZK |
117 | typedef struct DSPContext { |
118 | /* pixel ops : interface with DCT */ | |
0c1a9eda ZK |
119 | void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size); |
120 | void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride); | |
121 | void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); | |
122 | void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); | |
d518aebd MN |
123 | /** |
124 | * translational global motion compensation. | |
125 | */ | |
0c1a9eda | 126 | void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder); |
d518aebd MN |
127 | /** |
128 | * global motion compensation. | |
129 | */ | |
0c1a9eda | 130 | void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy, |
eb4b3dd3 ZK |
131 | int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height); |
132 | void (*clear_blocks)(DCTELEM *blocks/*align 16*/); | |
0c1a9eda ZK |
133 | int (*pix_sum)(uint8_t * pix, int line_size); |
134 | int (*pix_norm1)(uint8_t * pix, int line_size); | |
1457ab52 MN |
135 | me_cmp_func sad[2]; /* identical to pix_absAxA except additional void * */ |
136 | me_cmp_func sse[2]; | |
137 | me_cmp_func hadamard8_diff[2]; | |
138 | me_cmp_func dct_sad[2]; | |
139 | me_cmp_func quant_psnr[2]; | |
3a87ac94 MN |
140 | me_cmp_func bit[2]; |
141 | me_cmp_func rd[2]; | |
1457ab52 MN |
142 | int (*hadamard8_abs )(uint8_t *src, int stride, int mean); |
143 | ||
826f429a | 144 | me_cmp_func me_pre_cmp[11]; |
1457ab52 MN |
145 | me_cmp_func me_cmp[11]; |
146 | me_cmp_func me_sub_cmp[11]; | |
147 | me_cmp_func mb_cmp[11]; | |
eb4b3dd3 ZK |
148 | |
149 | /* maybe create an array for 16/8 functions */ | |
d518aebd MN |
150 | /** |
151 | * Halfpel motion compensation with rounding (a+b+1)>>1. | |
5755c27f | 152 | * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ] |
d518aebd MN |
153 | * @param block destination where the result is stored |
154 | * @param pixels source | |
155 | * @param line_size number of bytes in a horizontal line of block | |
156 | * @param h height | |
157 | */ | |
eb4b3dd3 | 158 | op_pixels_func put_pixels_tab[2][4]; |
d518aebd MN |
159 | |
160 | /** | |
161 | * Halfpel motion compensation with rounding (a+b+1)>>1. | |
5755c27f | 162 | * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ] |
d518aebd MN |
163 | * @param block destination into which the result is averaged (a+b+1)>>1 |
164 | * @param pixels source | |
165 | * @param line_size number of bytes in a horizontal line of block | |
166 | * @param h height | |
167 | */ | |
eb4b3dd3 | 168 | op_pixels_func avg_pixels_tab[2][4]; |
d518aebd MN |
169 | |
170 | /** | |
171 | * Halfpel motion compensation with no rounding (a+b)>>1. | |
5755c27f | 172 | * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ] |
d518aebd MN |
173 | * @param block destination where the result is stored |
174 | * @param pixels source | |
175 | * @param line_size number of bytes in a horizontal line of block | |
176 | * @param h height | |
177 | */ | |
eb4b3dd3 | 178 | op_pixels_func put_no_rnd_pixels_tab[2][4]; |
d518aebd MN |
179 | |
180 | /** | |
181 | * Halfpel motion compensation with no rounding (a+b)>>1. | |
5755c27f | 182 | * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ] |
d518aebd MN |
183 | * @param block destination into which the result is averaged (a+b)>>1 |
184 | * @param pixels source | |
185 | * @param line_size number of bytes in a horizontal line of block | |
186 | * @param h height | |
187 | */ | |
eb4b3dd3 ZK |
188 | op_pixels_func avg_no_rnd_pixels_tab[2][4]; |
189 | qpel_mc_func put_qpel_pixels_tab[2][16]; | |
190 | qpel_mc_func avg_qpel_pixels_tab[2][16]; | |
191 | qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16]; | |
192 | qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16]; | |
1457ab52 | 193 | qpel_mc_func put_mspel_pixels_tab[8]; |
0da71265 MN |
194 | |
195 | /** | |
196 | * h264 Chram MC | |
197 | */ | |
198 | h264_chroma_mc_func put_h264_chroma_pixels_tab[3]; | |
199 | h264_chroma_mc_func avg_h264_chroma_pixels_tab[3]; | |
eb4b3dd3 | 200 | |
0da71265 MN |
201 | qpel_mc_func put_h264_qpel_pixels_tab[3][16]; |
202 | qpel_mc_func avg_h264_qpel_pixels_tab[3][16]; | |
203 | ||
eb4b3dd3 ZK |
204 | op_pixels_abs_func pix_abs16x16; |
205 | op_pixels_abs_func pix_abs16x16_x2; | |
206 | op_pixels_abs_func pix_abs16x16_y2; | |
207 | op_pixels_abs_func pix_abs16x16_xy2; | |
208 | op_pixels_abs_func pix_abs8x8; | |
209 | op_pixels_abs_func pix_abs8x8_x2; | |
210 | op_pixels_abs_func pix_abs8x8_y2; | |
211 | op_pixels_abs_func pix_abs8x8_xy2; | |
11f18faf MN |
212 | |
213 | /* huffyuv specific */ | |
11f18faf | 214 | void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w); |
1457ab52 | 215 | void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w); |
b0368839 MN |
216 | |
217 | /* (I)DCT */ | |
218 | void (*fdct)(DCTELEM *block/* align 16*/); | |
24641185 MN |
219 | |
220 | /** | |
77c92c2d | 221 | * block -> idct -> clip to unsigned 8 bit -> dest. |
24641185 | 222 | * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...) |
a1adf436 | 223 | * @param line_size size in bytes of a horizotal line of dest |
24641185 | 224 | */ |
b0368839 | 225 | void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/); |
24641185 MN |
226 | |
227 | /** | |
228 | * block -> idct -> add dest -> clip to unsigned 8 bit -> dest. | |
a1adf436 | 229 | * @param line_size size in bytes of a horizotal line of dest |
24641185 | 230 | */ |
b0368839 | 231 | void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/); |
24641185 MN |
232 | |
233 | /** | |
77c92c2d | 234 | * idct input permutation. |
24641185 MN |
235 | * an example to avoid confusion: |
236 | * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...) | |
237 | * - (x -> referece dct -> reference idct -> x) | |
238 | * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x) | |
239 | * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...) | |
240 | */ | |
b0368839 MN |
241 | uint8_t idct_permutation[64]; |
242 | int idct_permutation_type; | |
243 | #define FF_NO_IDCT_PERM 1 | |
244 | #define FF_LIBMPEG2_IDCT_PERM 2 | |
245 | #define FF_SIMPLE_IDCT_PERM 3 | |
246 | #define FF_TRANSPOSE_IDCT_PERM 4 | |
247 | ||
eb4b3dd3 ZK |
248 | } DSPContext; |
249 | ||
59cf08ce | 250 | void dsputil_static_init(void); |
b0368839 | 251 | void dsputil_init(DSPContext* p, AVCodecContext *avctx); |
de6d9b64 | 252 | |
7801d21d MN |
253 | /** |
254 | * permute block according to permuatation. | |
255 | * @param last last non zero element in scantable order | |
256 | */ | |
0c1a9eda | 257 | void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last); |
e0eac44e | 258 | |
24641185 | 259 | /** |
77c92c2d | 260 | * Empty mmx state. |
24641185 MN |
261 | * this must be called between any dsp function and float/double code. |
262 | * for example sin(); dsp->idct_put(); emms_c(); cos() | |
263 | */ | |
eb4b3dd3 ZK |
264 | #define emms_c() |
265 | ||
e629ab68 RD |
266 | /* should be defined by architectures supporting |
267 | one or more MultiMedia extension */ | |
268 | int mm_support(void); | |
269 | ||
3d03c0a2 | 270 | #if defined(HAVE_MMX) |
de6d9b64 | 271 | |
18f77016 | 272 | #undef emms_c |
eb4b3dd3 | 273 | |
de6d9b64 FB |
274 | #define MM_MMX 0x0001 /* standard MMX */ |
275 | #define MM_3DNOW 0x0004 /* AMD 3DNOW */ | |
276 | #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */ | |
277 | #define MM_SSE 0x0008 /* SSE functions */ | |
278 | #define MM_SSE2 0x0010 /* PIV SSE2 functions */ | |
279 | ||
280 | extern int mm_flags; | |
281 | ||
0c1a9eda ZK |
282 | void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size); |
283 | void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size); | |
de6d9b64 FB |
284 | |
285 | static inline void emms(void) | |
286 | { | |
fb16b7e7 FB |
287 | __asm __volatile ("emms;":::"memory"); |
288 | } | |
289 | ||
1457ab52 | 290 | |
fb16b7e7 FB |
291 | #define emms_c() \ |
292 | {\ | |
293 | if (mm_flags & MM_MMX)\ | |
294 | emms();\ | |
de6d9b64 FB |
295 | } |
296 | ||
297 | #define __align8 __attribute__ ((aligned (8))) | |
298 | ||
b0368839 MN |
299 | void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx); |
300 | void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx); | |
2720569a | 301 | |
3d03c0a2 FB |
302 | #elif defined(ARCH_ARMV4L) |
303 | ||
3d03c0a2 FB |
304 | /* This is to use 4 bytes read to the IDCT pointers for some 'zero' |
305 | line ptimizations */ | |
306 | #define __align8 __attribute__ ((aligned (4))) | |
307 | ||
b0368839 | 308 | void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx); |
3d03c0a2 | 309 | |
c34270f5 | 310 | #elif defined(HAVE_MLIB) |
c34270f5 FB |
311 | |
312 | /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */ | |
313 | #define __align8 __attribute__ ((aligned (8))) | |
314 | ||
b0368839 | 315 | void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx); |
c34270f5 | 316 | |
1e98dffb NK |
317 | #elif defined(ARCH_ALPHA) |
318 | ||
1e98dffb NK |
319 | #define __align8 __attribute__ ((aligned (8))) |
320 | ||
b0368839 | 321 | void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx); |
1e98dffb | 322 | |
59925ef2 BF |
323 | #elif defined(ARCH_POWERPC) |
324 | ||
404d2241 BF |
325 | #define MM_ALTIVEC 0x0001 /* standard AltiVec */ |
326 | ||
327 | extern int mm_flags; | |
328 | ||
3b991c54 RD |
329 | #if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN) |
330 | #include <altivec.h> | |
331 | #endif | |
332 | ||
59925ef2 BF |
333 | #define __align8 __attribute__ ((aligned (16))) |
334 | ||
b0368839 | 335 | void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx); |
59925ef2 | 336 | |
d46aba26 LS |
337 | #elif defined(HAVE_MMI) |
338 | ||
d46aba26 LS |
339 | #define __align8 __attribute__ ((aligned (16))) |
340 | ||
b0368839 | 341 | void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx); |
d46aba26 | 342 | |
de6d9b64 FB |
343 | #else |
344 | ||
345 | #define __align8 | |
346 | ||
347 | #endif | |
348 | ||
6d4985bb FB |
349 | #ifdef __GNUC__ |
350 | ||
351 | struct unaligned_64 { uint64_t l; } __attribute__((packed)); | |
352 | struct unaligned_32 { uint32_t l; } __attribute__((packed)); | |
353 | ||
354 | #define LD32(a) (((const struct unaligned_32 *) (a))->l) | |
355 | #define LD64(a) (((const struct unaligned_64 *) (a))->l) | |
356 | ||
357 | #define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b) | |
358 | ||
359 | #else /* __GNUC__ */ | |
360 | ||
361 | #define LD32(a) (*((uint32_t*)(a))) | |
362 | #define LD64(a) (*((uint64_t*)(a))) | |
363 | ||
364 | #define ST32(a, b) *((uint32_t*)(a)) = (b) | |
365 | ||
366 | #endif /* !__GNUC__ */ | |
367 | ||
43f1708f | 368 | /* PSNR */ |
0c1a9eda | 369 | void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3], |
43f1708f J |
370 | int orig_linesize[3], int coded_linesize, |
371 | AVCodecContext *avctx); | |
bb6f5690 FB |
372 | |
373 | /* FFT computation */ | |
374 | ||
375 | /* NOTE: soon integer code will be added, so you must use the | |
376 | FFTSample type */ | |
377 | typedef float FFTSample; | |
378 | ||
379 | typedef struct FFTComplex { | |
380 | FFTSample re, im; | |
381 | } FFTComplex; | |
382 | ||
383 | typedef struct FFTContext { | |
384 | int nbits; | |
385 | int inverse; | |
386 | uint16_t *revtab; | |
387 | FFTComplex *exptab; | |
388 | FFTComplex *exptab1; /* only used by SSE code */ | |
389 | void (*fft_calc)(struct FFTContext *s, FFTComplex *z); | |
390 | } FFTContext; | |
391 | ||
392 | int fft_init(FFTContext *s, int nbits, int inverse); | |
393 | void fft_permute(FFTContext *s, FFTComplex *z); | |
394 | void fft_calc_c(FFTContext *s, FFTComplex *z); | |
395 | void fft_calc_sse(FFTContext *s, FFTComplex *z); | |
8d268a7d FB |
396 | void fft_calc_altivec(FFTContext *s, FFTComplex *z); |
397 | ||
bb6f5690 FB |
398 | static inline void fft_calc(FFTContext *s, FFTComplex *z) |
399 | { | |
400 | s->fft_calc(s, z); | |
401 | } | |
402 | void fft_end(FFTContext *s); | |
403 | ||
404 | /* MDCT computation */ | |
405 | ||
406 | typedef struct MDCTContext { | |
407 | int n; /* size of MDCT (i.e. number of input data * 2) */ | |
408 | int nbits; /* n = 2^nbits */ | |
409 | /* pre/post rotation tables */ | |
410 | FFTSample *tcos; | |
411 | FFTSample *tsin; | |
412 | FFTContext fft; | |
413 | } MDCTContext; | |
414 | ||
82696bee | 415 | int ff_mdct_init(MDCTContext *s, int nbits, int inverse); |
eb4b3dd3 | 416 | void ff_imdct_calc(MDCTContext *s, FFTSample *output, |
bb6f5690 | 417 | const FFTSample *input, FFTSample *tmp); |
eb4b3dd3 | 418 | void ff_mdct_calc(MDCTContext *s, FFTSample *out, |
bb6f5690 | 419 | const FFTSample *input, FFTSample *tmp); |
82696bee | 420 | void ff_mdct_end(MDCTContext *s); |
bb6f5690 | 421 | |
1457ab52 MN |
422 | #define WARPER88_1616(name8, name16)\ |
423 | static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride){\ | |
424 | return name8(s, dst , src , stride)\ | |
425 | +name8(s, dst+8 , src+8 , stride)\ | |
426 | +name8(s, dst +8*stride, src +8*stride, stride)\ | |
427 | +name8(s, dst+8+8*stride, src+8+8*stride, stride);\ | |
428 | } | |
429 | ||
95e2ce4a | 430 | #ifndef HAVE_LRINTF |
9d85cbd9 FB |
431 | /* XXX: add ISOC specific test to avoid specific BSD testing. */ |
432 | /* better than nothing implementation. */ | |
6234d753 | 433 | /* btw, rintf() is existing on fbsd too -- alex */ |
9d85cbd9 FB |
434 | static inline long int lrintf(float x) |
435 | { | |
ea937d01 FB |
436 | #ifdef CONFIG_WIN32 |
437 | /* XXX: incorrect, but make it compile */ | |
438 | return (int)(x); | |
439 | #else | |
9d85cbd9 | 440 | return (int)(rint(x)); |
ea937d01 | 441 | #endif |
9d85cbd9 FB |
442 | } |
443 | #endif | |
444 | ||
de6d9b64 | 445 | #endif |