decode H.264 with 8x8 transform.
[libav.git] / libavcodec / dsputil.h
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 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 */
20
21 /**
22 * @file dsputil.h
23 * DSP utils.
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
26 */
27
28 #ifndef DSPUTIL_H
29 #define DSPUTIL_H
30
31 #include "common.h"
32 #include "avcodec.h"
33
34
35 //#define DEBUG
36 /* dct code */
37 typedef short DCTELEM;
38
39 void fdct_ifast (DCTELEM *data);
40 void fdct_ifast248 (DCTELEM *data);
41 void ff_jpeg_fdct_islow (DCTELEM *data);
42 void ff_fdct248_islow (DCTELEM *data);
43
44 void j_rev_dct (DCTELEM *data);
45 void j_rev_dct4 (DCTELEM *data);
46 void j_rev_dct2 (DCTELEM *data);
47 void j_rev_dct1 (DCTELEM *data);
48
49 void ff_fdct_mmx(DCTELEM *block);
50 void ff_fdct_mmx2(DCTELEM *block);
51 void ff_fdct_sse2(DCTELEM *block);
52
53 void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
54 void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
55 void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
56 void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
57
58 /* encoding scans */
59 extern const uint8_t ff_alternate_horizontal_scan[64];
60 extern const uint8_t ff_alternate_vertical_scan[64];
61 extern const uint8_t ff_zigzag_direct[64];
62 extern const uint8_t ff_zigzag248_direct[64];
63
64 /* pixel operations */
65 #define MAX_NEG_CROP 1024
66
67 /* temporary */
68 extern uint32_t squareTbl[512];
69 extern uint8_t cropTbl[256 + 2 * MAX_NEG_CROP];
70
71 /* VP3 DSP functions */
72 void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
73 void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
74 void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
75
76 /* minimum alignment rules ;)
77 if u notice errors in the align stuff, need more alignment for some asm code for some cpu
78 or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
79
80 !warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
81 i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
82
83 !future video codecs might need functions with less strict alignment
84 */
85
86 /*
87 void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
88 void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
89 void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
90 void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
91 void clear_blocks_c(DCTELEM *blocks);
92 */
93
94 /* add and put pixel (decoding) */
95 // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
96 //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
97 typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
98 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);
99 typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
100 typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
101 typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
102 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offsetd, int offsets);
103
104 #define DEF_OLD_QPEL(name)\
105 void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
106 void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
107 void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
108
109 DEF_OLD_QPEL(qpel16_mc11_old_c)
110 DEF_OLD_QPEL(qpel16_mc31_old_c)
111 DEF_OLD_QPEL(qpel16_mc12_old_c)
112 DEF_OLD_QPEL(qpel16_mc32_old_c)
113 DEF_OLD_QPEL(qpel16_mc13_old_c)
114 DEF_OLD_QPEL(qpel16_mc33_old_c)
115 DEF_OLD_QPEL(qpel8_mc11_old_c)
116 DEF_OLD_QPEL(qpel8_mc31_old_c)
117 DEF_OLD_QPEL(qpel8_mc12_old_c)
118 DEF_OLD_QPEL(qpel8_mc32_old_c)
119 DEF_OLD_QPEL(qpel8_mc13_old_c)
120 DEF_OLD_QPEL(qpel8_mc33_old_c)
121
122 #define CALL_2X_PIXELS(a, b, n)\
123 static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
124 b(block , pixels , line_size, h);\
125 b(block+n, pixels+n, line_size, h);\
126 }
127
128 /* motion estimation */
129 // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
130 // allthough currently h<4 is not used as functions with width <8 are not used and neither implemented
131 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))*/;
132
133
134 /**
135 * DSPContext.
136 */
137 typedef struct DSPContext {
138 /* pixel ops : interface with DCT */
139 void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
140 void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
141 void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
142 void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
143 void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
144 /**
145 * translational global motion compensation.
146 */
147 void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
148 /**
149 * global motion compensation.
150 */
151 void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
152 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
153 void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
154 int (*pix_sum)(uint8_t * pix, int line_size);
155 int (*pix_norm1)(uint8_t * pix, int line_size);
156 // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
157
158 me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
159 me_cmp_func sse[5];
160 me_cmp_func hadamard8_diff[5];
161 me_cmp_func dct_sad[5];
162 me_cmp_func quant_psnr[5];
163 me_cmp_func bit[5];
164 me_cmp_func rd[5];
165 me_cmp_func vsad[5];
166 me_cmp_func vsse[5];
167 me_cmp_func nsse[5];
168 me_cmp_func w53[5];
169 me_cmp_func w97[5];
170 me_cmp_func dct_max[5];
171
172 me_cmp_func me_pre_cmp[5];
173 me_cmp_func me_cmp[5];
174 me_cmp_func me_sub_cmp[5];
175 me_cmp_func mb_cmp[5];
176 me_cmp_func ildct_cmp[5]; //only width 16 used
177 me_cmp_func frame_skip_cmp[5]; //only width 8 used
178
179 /**
180 * Halfpel motion compensation with rounding (a+b+1)>>1.
181 * this is an array[4][4] of motion compensation funcions for 4
182 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
183 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
184 * @param block destination where the result is stored
185 * @param pixels source
186 * @param line_size number of bytes in a horizontal line of block
187 * @param h height
188 */
189 op_pixels_func put_pixels_tab[4][4];
190
191 /**
192 * Halfpel motion compensation with rounding (a+b+1)>>1.
193 * This is an array[4][4] of motion compensation functions for 4
194 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
195 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
196 * @param block destination into which the result is averaged (a+b+1)>>1
197 * @param pixels source
198 * @param line_size number of bytes in a horizontal line of block
199 * @param h height
200 */
201 op_pixels_func avg_pixels_tab[4][4];
202
203 /**
204 * Halfpel motion compensation with no rounding (a+b)>>1.
205 * this is an array[2][4] of motion compensation funcions for 2
206 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
207 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
208 * @param block destination where the result is stored
209 * @param pixels source
210 * @param line_size number of bytes in a horizontal line of block
211 * @param h height
212 */
213 op_pixels_func put_no_rnd_pixels_tab[4][4];
214
215 /**
216 * Halfpel motion compensation with no rounding (a+b)>>1.
217 * this is an array[2][4] of motion compensation funcions for 2
218 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
219 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
220 * @param block destination into which the result is averaged (a+b)>>1
221 * @param pixels source
222 * @param line_size number of bytes in a horizontal line of block
223 * @param h height
224 */
225 op_pixels_func avg_no_rnd_pixels_tab[4][4];
226
227 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);
228
229 /**
230 * Thirdpel motion compensation with rounding (a+b+1)>>1.
231 * this is an array[12] of motion compensation funcions for the 9 thirdpel positions<br>
232 * *pixels_tab[ xthirdpel + 4*ythirdpel ]
233 * @param block destination where the result is stored
234 * @param pixels source
235 * @param line_size number of bytes in a horizontal line of block
236 * @param h height
237 */
238 tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
239 tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
240
241 qpel_mc_func put_qpel_pixels_tab[2][16];
242 qpel_mc_func avg_qpel_pixels_tab[2][16];
243 qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
244 qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
245 qpel_mc_func put_mspel_pixels_tab[8];
246
247 /**
248 * h264 Chram MC
249 */
250 h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
251 h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
252
253 qpel_mc_func put_h264_qpel_pixels_tab[3][16];
254 qpel_mc_func avg_h264_qpel_pixels_tab[3][16];
255
256 h264_weight_func weight_h264_pixels_tab[10];
257 h264_biweight_func biweight_h264_pixels_tab[10];
258
259 me_cmp_func pix_abs[2][4];
260
261 /* huffyuv specific */
262 void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
263 void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
264 /**
265 * subtract huffyuv's variant of median prediction
266 * note, this might read from src1[-1], src2[-1]
267 */
268 void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
269 void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
270
271 void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
272 void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
273 void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
274 void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
275 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
276 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
277
278 void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
279 void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
280
281 void (*h261_loop_filter)(uint8_t *src, int stride);
282
283 /* (I)DCT */
284 void (*fdct)(DCTELEM *block/* align 16*/);
285 void (*fdct248)(DCTELEM *block/* align 16*/);
286
287 /* IDCT really*/
288 void (*idct)(DCTELEM *block/* align 16*/);
289
290 /**
291 * block -> idct -> clip to unsigned 8 bit -> dest.
292 * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
293 * @param line_size size in bytes of a horizotal line of dest
294 */
295 void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
296
297 /**
298 * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
299 * @param line_size size in bytes of a horizotal line of dest
300 */
301 void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
302
303 /**
304 * idct input permutation.
305 * several optimized IDCTs need a permutated input (relative to the normal order of the reference
306 * IDCT)
307 * this permutation must be performed before the idct_put/add, note, normally this can be merged
308 * with the zigzag/alternate scan<br>
309 * an example to avoid confusion:
310 * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
311 * - (x -> referece dct -> reference idct -> x)
312 * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
313 * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
314 */
315 uint8_t idct_permutation[64];
316 int idct_permutation_type;
317 #define FF_NO_IDCT_PERM 1
318 #define FF_LIBMPEG2_IDCT_PERM 2
319 #define FF_SIMPLE_IDCT_PERM 3
320 #define FF_TRANSPOSE_IDCT_PERM 4
321 #define FF_PARTTRANS_IDCT_PERM 5
322
323 int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
324 void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
325 #define BASIS_SHIFT 16
326 #define RECON_SHIFT 6
327
328 void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
329 void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
330 } DSPContext;
331
332 void dsputil_static_init(void);
333 void dsputil_init(DSPContext* p, AVCodecContext *avctx);
334
335 /**
336 * permute block according to permuatation.
337 * @param last last non zero element in scantable order
338 */
339 void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
340
341 void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
342
343 #define BYTE_VEC32(c) ((c)*0x01010101UL)
344
345 static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
346 {
347 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
348 }
349
350 static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
351 {
352 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
353 }
354
355 static inline int get_penalty_factor(int lambda, int lambda2, int type){
356 switch(type&0xFF){
357 default:
358 case FF_CMP_SAD:
359 return lambda>>FF_LAMBDA_SHIFT;
360 case FF_CMP_DCT:
361 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
362 case FF_CMP_W53:
363 return (4*lambda)>>(FF_LAMBDA_SHIFT);
364 case FF_CMP_W97:
365 return (2*lambda)>>(FF_LAMBDA_SHIFT);
366 case FF_CMP_SATD:
367 return (2*lambda)>>FF_LAMBDA_SHIFT;
368 case FF_CMP_RD:
369 case FF_CMP_PSNR:
370 case FF_CMP_SSE:
371 case FF_CMP_NSSE:
372 return lambda2>>FF_LAMBDA_SHIFT;
373 case FF_CMP_BIT:
374 return 1;
375 }
376 }
377
378 /**
379 * Empty mmx state.
380 * this must be called between any dsp function and float/double code.
381 * for example sin(); dsp->idct_put(); emms_c(); cos()
382 */
383 #define emms_c()
384
385 /* should be defined by architectures supporting
386 one or more MultiMedia extension */
387 int mm_support(void);
388
389 #define __align16 __attribute__ ((aligned (16)))
390
391 #if defined(HAVE_MMX)
392
393 #undef emms_c
394
395 #define MM_MMX 0x0001 /* standard MMX */
396 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
397 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
398 #define MM_SSE 0x0008 /* SSE functions */
399 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
400 #define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
401
402 extern int mm_flags;
403
404 void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
405 void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
406 void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
407
408 static inline void emms(void)
409 {
410 __asm __volatile ("emms;":::"memory");
411 }
412
413
414 #define emms_c() \
415 {\
416 if (mm_flags & MM_MMX)\
417 emms();\
418 }
419
420 #define __align8 __attribute__ ((aligned (8)))
421 #define STRIDE_ALIGN 8
422
423 void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
424 void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
425
426 #elif defined(ARCH_ARMV4L)
427
428 /* This is to use 4 bytes read to the IDCT pointers for some 'zero'
429 line optimizations */
430 #define __align8 __attribute__ ((aligned (4)))
431 #define STRIDE_ALIGN 4
432
433 void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
434
435 #elif defined(HAVE_MLIB)
436
437 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
438 #define __align8 __attribute__ ((aligned (8)))
439 #define STRIDE_ALIGN 8
440
441 void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
442
443 #elif defined(ARCH_SPARC)
444
445 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
446 #define __align8 __attribute__ ((aligned (8)))
447 #define STRIDE_ALIGN 8
448 void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
449
450 #elif defined(ARCH_ALPHA)
451
452 #define __align8 __attribute__ ((aligned (8)))
453 #define STRIDE_ALIGN 8
454
455 void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
456
457 #elif defined(ARCH_POWERPC)
458
459 #define MM_ALTIVEC 0x0001 /* standard AltiVec */
460
461 extern int mm_flags;
462
463 #if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN)
464 #define pixel altivec_pixel
465 #include <altivec.h>
466 #undef pixel
467 #endif
468
469 #define __align8 __attribute__ ((aligned (16)))
470 #define STRIDE_ALIGN 16
471
472 void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
473
474 #elif defined(HAVE_MMI)
475
476 #define __align8 __attribute__ ((aligned (16)))
477 #define STRIDE_ALIGN 16
478
479 void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
480
481 #elif defined(ARCH_SH4)
482
483 #define __align8 __attribute__ ((aligned (8)))
484 #define STRIDE_ALIGN 8
485
486 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
487
488 #else
489
490 #define __align8 __attribute__ ((aligned (8)))
491 #define STRIDE_ALIGN 8
492
493 #endif
494
495 #ifdef __GNUC__
496
497 struct unaligned_64 { uint64_t l; } __attribute__((packed));
498 struct unaligned_32 { uint32_t l; } __attribute__((packed));
499 struct unaligned_16 { uint16_t l; } __attribute__((packed));
500
501 #define LD16(a) (((const struct unaligned_16 *) (a))->l)
502 #define LD32(a) (((const struct unaligned_32 *) (a))->l)
503 #define LD64(a) (((const struct unaligned_64 *) (a))->l)
504
505 #define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
506
507 #else /* __GNUC__ */
508
509 #define LD16(a) (*((uint16_t*)(a)))
510 #define LD32(a) (*((uint32_t*)(a)))
511 #define LD64(a) (*((uint64_t*)(a)))
512
513 #define ST32(a, b) *((uint32_t*)(a)) = (b)
514
515 #endif /* !__GNUC__ */
516
517 /* PSNR */
518 void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
519 int orig_linesize[3], int coded_linesize,
520 AVCodecContext *avctx);
521
522 /* FFT computation */
523
524 /* NOTE: soon integer code will be added, so you must use the
525 FFTSample type */
526 typedef float FFTSample;
527
528 typedef struct FFTComplex {
529 FFTSample re, im;
530 } FFTComplex;
531
532 typedef struct FFTContext {
533 int nbits;
534 int inverse;
535 uint16_t *revtab;
536 FFTComplex *exptab;
537 FFTComplex *exptab1; /* only used by SSE code */
538 void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
539 } FFTContext;
540
541 int ff_fft_init(FFTContext *s, int nbits, int inverse);
542 void ff_fft_permute(FFTContext *s, FFTComplex *z);
543 void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
544 void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
545 void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
546
547 static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
548 {
549 s->fft_calc(s, z);
550 }
551 void ff_fft_end(FFTContext *s);
552
553 /* MDCT computation */
554
555 typedef struct MDCTContext {
556 int n; /* size of MDCT (i.e. number of input data * 2) */
557 int nbits; /* n = 2^nbits */
558 /* pre/post rotation tables */
559 FFTSample *tcos;
560 FFTSample *tsin;
561 FFTContext fft;
562 } MDCTContext;
563
564 int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
565 void ff_imdct_calc(MDCTContext *s, FFTSample *output,
566 const FFTSample *input, FFTSample *tmp);
567 void ff_mdct_calc(MDCTContext *s, FFTSample *out,
568 const FFTSample *input, FFTSample *tmp);
569 void ff_mdct_end(MDCTContext *s);
570
571 #define WARPER8_16(name8, name16)\
572 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
573 return name8(s, dst , src , stride, h)\
574 +name8(s, dst+8 , src+8 , stride, h);\
575 }
576
577 #define WARPER8_16_SQ(name8, name16)\
578 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
579 int score=0;\
580 score +=name8(s, dst , src , stride, 8);\
581 score +=name8(s, dst+8 , src+8 , stride, 8);\
582 if(h==16){\
583 dst += 8*stride;\
584 src += 8*stride;\
585 score +=name8(s, dst , src , stride, 8);\
586 score +=name8(s, dst+8 , src+8 , stride, 8);\
587 }\
588 return score;\
589 }
590
591 #ifndef HAVE_LRINTF
592 /* XXX: add ISOC specific test to avoid specific BSD testing. */
593 /* better than nothing implementation. */
594 /* btw, rintf() is existing on fbsd too -- alex */
595 static always_inline long int lrintf(float x)
596 {
597 #ifdef CONFIG_WIN32
598 # ifdef ARCH_X86
599 int32_t i;
600 asm volatile(
601 "fistpl %0\n\t"
602 : "=m" (i) : "t" (x) : "st"
603 );
604 return i;
605 # else
606 /* XXX: incorrect, but make it compile */
607 return (int)(x + (x < 0 ? -0.5 : 0.5));
608 # endif
609 #else
610 return (int)(rint(x));
611 #endif
612 }
613 #else
614 #ifndef _ISOC9X_SOURCE
615 #define _ISOC9X_SOURCE
616 #endif
617 #include <math.h>
618 #endif
619
620 #endif