Typos in comments
[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 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 DSPUTIL_H
31 #define DSPUTIL_H
32
33 #include "common.h"
34 #include "avcodec.h"
35
36
37 //#define DEBUG
38 /* dct code */
39 typedef short DCTELEM;
40 typedef int DWTELEM;
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
52 void ff_fdct_mmx(DCTELEM *block);
53 void ff_fdct_mmx2(DCTELEM *block);
54 void ff_fdct_sse2(DCTELEM *block);
55
56 void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
57 void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
58 void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
59 void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
60 void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
61 void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
62
63 void ff_vector_fmul_add_add_c(float *dst, const float *src0, const float *src1,
64 const float *src2, int src3, int blocksize, int step);
65 void ff_float_to_int16_c(int16_t *dst, const float *src, int len);
66
67 /* encoding scans */
68 extern const uint8_t ff_alternate_horizontal_scan[64];
69 extern const uint8_t ff_alternate_vertical_scan[64];
70 extern const uint8_t ff_zigzag_direct[64];
71 extern const uint8_t ff_zigzag248_direct[64];
72
73 /* pixel operations */
74 #define MAX_NEG_CROP 1024
75
76 /* temporary */
77 extern uint32_t ff_squareTbl[512];
78 extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
79
80 /* VP3 DSP functions */
81 void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
82 void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
83 void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
84
85 /* 1/2^n downscaling functions from imgconvert.c */
86 void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
87 void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
88 void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
89 void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
90
91 void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
92 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
93
94 /* minimum alignment rules ;)
95 if u notice errors in the align stuff, need more alignment for some asm code for some cpu
96 or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
97
98 !warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
99 i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
100
101 !future video codecs might need functions with less strict alignment
102 */
103
104 /*
105 void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
106 void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
107 void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
108 void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
109 void clear_blocks_c(DCTELEM *blocks);
110 */
111
112 /* add and put pixel (decoding) */
113 // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
114 //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
115 typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
116 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);
117 typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
118 typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
119 typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
120 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
121
122 #define DEF_OLD_QPEL(name)\
123 void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
124 void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
125 void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
126
127 DEF_OLD_QPEL(qpel16_mc11_old_c)
128 DEF_OLD_QPEL(qpel16_mc31_old_c)
129 DEF_OLD_QPEL(qpel16_mc12_old_c)
130 DEF_OLD_QPEL(qpel16_mc32_old_c)
131 DEF_OLD_QPEL(qpel16_mc13_old_c)
132 DEF_OLD_QPEL(qpel16_mc33_old_c)
133 DEF_OLD_QPEL(qpel8_mc11_old_c)
134 DEF_OLD_QPEL(qpel8_mc31_old_c)
135 DEF_OLD_QPEL(qpel8_mc12_old_c)
136 DEF_OLD_QPEL(qpel8_mc32_old_c)
137 DEF_OLD_QPEL(qpel8_mc13_old_c)
138 DEF_OLD_QPEL(qpel8_mc33_old_c)
139
140 #define CALL_2X_PIXELS(a, b, n)\
141 static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
142 b(block , pixels , line_size, h);\
143 b(block+n, pixels+n, line_size, h);\
144 }
145
146 /* motion estimation */
147 // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
148 // allthough currently h<4 is not used as functions with width <8 are not used and neither implemented
149 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))*/;
150
151
152 // for snow slices
153 typedef struct slice_buffer_s slice_buffer;
154
155 /**
156 * DSPContext.
157 */
158 typedef struct DSPContext {
159 /* pixel ops : interface with DCT */
160 void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
161 void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
162 void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
163 void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
164 void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
165 void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
166 void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
167 /**
168 * translational global motion compensation.
169 */
170 void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
171 /**
172 * global motion compensation.
173 */
174 void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
175 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
176 void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
177 int (*pix_sum)(uint8_t * pix, int line_size);
178 int (*pix_norm1)(uint8_t * pix, int line_size);
179 // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
180
181 me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
182 me_cmp_func sse[5];
183 me_cmp_func hadamard8_diff[5];
184 me_cmp_func dct_sad[5];
185 me_cmp_func quant_psnr[5];
186 me_cmp_func bit[5];
187 me_cmp_func rd[5];
188 me_cmp_func vsad[5];
189 me_cmp_func vsse[5];
190 me_cmp_func nsse[5];
191 me_cmp_func w53[5];
192 me_cmp_func w97[5];
193 me_cmp_func dct_max[5];
194 me_cmp_func dct264_sad[5];
195
196 me_cmp_func me_pre_cmp[5];
197 me_cmp_func me_cmp[5];
198 me_cmp_func me_sub_cmp[5];
199 me_cmp_func mb_cmp[5];
200 me_cmp_func ildct_cmp[5]; //only width 16 used
201 me_cmp_func frame_skip_cmp[5]; //only width 8 used
202
203 int (*ssd_int8_vs_int16)(int8_t *pix1, int16_t *pix2, int size);
204
205 /**
206 * Halfpel motion compensation with rounding (a+b+1)>>1.
207 * this is an array[4][4] of motion compensation functions for 4
208 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
209 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
210 * @param block destination where the result is stored
211 * @param pixels source
212 * @param line_size number of bytes in a horizontal line of block
213 * @param h height
214 */
215 op_pixels_func put_pixels_tab[4][4];
216
217 /**
218 * Halfpel motion compensation with rounding (a+b+1)>>1.
219 * This is an array[4][4] of motion compensation functions for 4
220 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
221 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
222 * @param block destination into which the result is averaged (a+b+1)>>1
223 * @param pixels source
224 * @param line_size number of bytes in a horizontal line of block
225 * @param h height
226 */
227 op_pixels_func avg_pixels_tab[4][4];
228
229 /**
230 * Halfpel motion compensation with no rounding (a+b)>>1.
231 * this is an array[2][4] of motion compensation functions for 2
232 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
233 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
234 * @param block destination where the result is stored
235 * @param pixels source
236 * @param line_size number of bytes in a horizontal line of block
237 * @param h height
238 */
239 op_pixels_func put_no_rnd_pixels_tab[4][4];
240
241 /**
242 * Halfpel motion compensation with no rounding (a+b)>>1.
243 * this is an array[2][4] of motion compensation functions for 2
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 into which the result is averaged (a+b)>>1
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 avg_no_rnd_pixels_tab[4][4];
252
253 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);
254
255 /**
256 * Thirdpel motion compensation with rounding (a+b+1)>>1.
257 * this is an array[12] of motion compensation functions for the 9 thirdpe
258 * positions<br>
259 * *pixels_tab[ xthirdpel + 4*ythirdpel ]
260 * @param block destination where the result is stored
261 * @param pixels source
262 * @param line_size number of bytes in a horizontal line of block
263 * @param h height
264 */
265 tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
266 tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
267
268 qpel_mc_func put_qpel_pixels_tab[2][16];
269 qpel_mc_func avg_qpel_pixels_tab[2][16];
270 qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
271 qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
272 qpel_mc_func put_mspel_pixels_tab[8];
273
274 /**
275 * h264 Chroma MC
276 */
277 h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
278 /* This is really one func used in VC-1 decoding */
279 h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];
280 h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
281
282 qpel_mc_func put_h264_qpel_pixels_tab[4][16];
283 qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
284
285 qpel_mc_func put_2tap_qpel_pixels_tab[4][16];
286 qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];
287
288 h264_weight_func weight_h264_pixels_tab[10];
289 h264_biweight_func biweight_h264_pixels_tab[10];
290
291 /* AVS specific */
292 qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
293 qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
294 void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
295 void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
296 void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
297 void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
298 void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
299
300 me_cmp_func pix_abs[2][4];
301
302 /* huffyuv specific */
303 void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
304 void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
305 /**
306 * subtract huffyuv's variant of median prediction
307 * note, this might read from src1[-1], src2[-1]
308 */
309 void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
310 void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
311
312 void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
313 void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
314 void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
315 void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
316 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
317 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
318 // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
319 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],
320 int bidir, int edges, int step, int mask_mv0, int mask_mv1);
321
322 void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
323 void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
324
325 void (*h261_loop_filter)(uint8_t *src, int stride);
326
327 /* assume len is a multiple of 4, and arrays are 16-byte aligned */
328 void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
329 /* assume len is a multiple of 8, and arrays are 16-byte aligned */
330 void (*vector_fmul)(float *dst, const float *src, int len);
331 void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
332 /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
333 void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);
334
335 /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
336 * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */
337 void (*float_to_int16)(int16_t *dst, const float *src, int len);
338
339 /* (I)DCT */
340 void (*fdct)(DCTELEM *block/* align 16*/);
341 void (*fdct248)(DCTELEM *block/* align 16*/);
342
343 /* IDCT really*/
344 void (*idct)(DCTELEM *block/* align 16*/);
345
346 /**
347 * block -> idct -> clip to unsigned 8 bit -> dest.
348 * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
349 * @param line_size size in bytes of a horizotal line of dest
350 */
351 void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
352
353 /**
354 * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
355 * @param line_size size in bytes of a horizotal line of dest
356 */
357 void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
358
359 /**
360 * idct input permutation.
361 * several optimized IDCTs need a permutated input (relative to the normal order of the reference
362 * IDCT)
363 * this permutation must be performed before the idct_put/add, note, normally this can be merged
364 * with the zigzag/alternate scan<br>
365 * an example to avoid confusion:
366 * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
367 * - (x -> referece dct -> reference idct -> x)
368 * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
369 * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
370 */
371 uint8_t idct_permutation[64];
372 int idct_permutation_type;
373 #define FF_NO_IDCT_PERM 1
374 #define FF_LIBMPEG2_IDCT_PERM 2
375 #define FF_SIMPLE_IDCT_PERM 3
376 #define FF_TRANSPOSE_IDCT_PERM 4
377 #define FF_PARTTRANS_IDCT_PERM 5
378
379 int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
380 void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
381 #define BASIS_SHIFT 16
382 #define RECON_SHIFT 6
383
384 /* h264 functions */
385 void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
386 void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
387 void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
388 void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
389 void (*h264_dct)(DCTELEM block[4][4]);
390
391 /* snow wavelet */
392 void (*vertical_compose97i)(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
393 void (*horizontal_compose97i)(DWTELEM *b, int width);
394 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);
395
396 void (*prefetch)(void *mem, int stride, int h);
397
398 void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
399
400 /* vc1 functions */
401 void (*vc1_inv_trans_8x8)(DCTELEM *b);
402 void (*vc1_inv_trans_8x4)(DCTELEM *b, int n);
403 void (*vc1_inv_trans_4x8)(DCTELEM *b, int n);
404 void (*vc1_inv_trans_4x4)(DCTELEM *b, int n);
405 void (*vc1_v_overlap)(uint8_t* src, int stride);
406 void (*vc1_h_overlap)(uint8_t* src, int stride);
407 /* put 8x8 block with bicubic interpolation and quarterpel precision
408 * last argument is actually round value instead of height
409 */
410 op_pixels_func put_vc1_mspel_pixels_tab[16];
411 } DSPContext;
412
413 void dsputil_static_init(void);
414 void dsputil_init(DSPContext* p, AVCodecContext *avctx);
415
416 int ff_check_alignment(void);
417
418 /**
419 * permute block according to permuatation.
420 * @param last last non zero element in scantable order
421 */
422 void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
423
424 void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
425
426 #define BYTE_VEC32(c) ((c)*0x01010101UL)
427
428 static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
429 {
430 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
431 }
432
433 static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
434 {
435 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
436 }
437
438 static inline int get_penalty_factor(int lambda, int lambda2, int type){
439 switch(type&0xFF){
440 default:
441 case FF_CMP_SAD:
442 return lambda>>FF_LAMBDA_SHIFT;
443 case FF_CMP_DCT:
444 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
445 case FF_CMP_W53:
446 return (4*lambda)>>(FF_LAMBDA_SHIFT);
447 case FF_CMP_W97:
448 return (2*lambda)>>(FF_LAMBDA_SHIFT);
449 case FF_CMP_SATD:
450 case FF_CMP_DCT264:
451 return (2*lambda)>>FF_LAMBDA_SHIFT;
452 case FF_CMP_RD:
453 case FF_CMP_PSNR:
454 case FF_CMP_SSE:
455 case FF_CMP_NSSE:
456 return lambda2>>FF_LAMBDA_SHIFT;
457 case FF_CMP_BIT:
458 return 1;
459 }
460 }
461
462 /**
463 * Empty mmx state.
464 * this must be called between any dsp function and float/double code.
465 * for example sin(); dsp->idct_put(); emms_c(); cos()
466 */
467 #define emms_c()
468
469 /* should be defined by architectures supporting
470 one or more MultiMedia extension */
471 int mm_support(void);
472
473 #ifdef __GNUC__
474 #define DECLARE_ALIGNED_16(t,v) t v __attribute__ ((aligned (16)))
475 #else
476 #define DECLARE_ALIGNED_16(t,v) __declspec(align(16)) t v
477 #endif
478
479 #if defined(HAVE_MMX)
480
481 #undef emms_c
482
483 #define MM_MMX 0x0001 /* standard MMX */
484 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
485 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
486 #define MM_SSE 0x0008 /* SSE functions */
487 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
488 #define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
489 #define MM_SSE3 0x0040 /* Prescott SSE3 functions */
490 #define MM_SSSE3 0x0080 /* Conroe SSSE3 functions */
491
492 extern int mm_flags;
493
494 void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
495 void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
496 void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
497
498 static inline void emms(void)
499 {
500 __asm __volatile ("emms;":::"memory");
501 }
502
503
504 #define emms_c() \
505 {\
506 if (mm_flags & MM_MMX)\
507 emms();\
508 }
509
510 #ifdef __GNUC__
511 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
512 #else
513 #define DECLARE_ALIGNED_8(t,v) __declspec(align(8)) t v
514 #endif
515
516 #define STRIDE_ALIGN 8
517
518 void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
519 void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
520
521 #elif defined(ARCH_ARMV4L)
522
523 /* This is to use 4 bytes read to the IDCT pointers for some 'zero'
524 line optimizations */
525 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (4)))
526 #define STRIDE_ALIGN 4
527
528 #define MM_IWMMXT 0x0100 /* XScale IWMMXT */
529
530 extern int mm_flags;
531
532 void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
533
534 #elif defined(HAVE_MLIB)
535
536 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
537 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
538 #define STRIDE_ALIGN 8
539
540 void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
541
542 #elif defined(ARCH_SPARC)
543
544 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
545 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
546 #define STRIDE_ALIGN 8
547 void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
548
549 #elif defined(ARCH_ALPHA)
550
551 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
552 #define STRIDE_ALIGN 8
553
554 void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
555
556 #elif defined(ARCH_POWERPC)
557
558 #define MM_ALTIVEC 0x0001 /* standard AltiVec */
559
560 extern int mm_flags;
561
562 #if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN)
563 #define pixel altivec_pixel
564 #include <altivec.h>
565 #undef pixel
566 #endif
567
568 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (16)))
569 #define STRIDE_ALIGN 16
570
571 void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
572
573 #elif defined(HAVE_MMI)
574
575 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (16)))
576 #define STRIDE_ALIGN 16
577
578 void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
579
580 #elif defined(ARCH_SH4)
581
582 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
583 #define STRIDE_ALIGN 8
584
585 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
586
587 #elif defined(ARCH_BFIN)
588
589 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
590 #define STRIDE_ALIGN 8
591
592 void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
593
594 #else
595
596 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
597 #define STRIDE_ALIGN 8
598
599 #endif
600
601 /* PSNR */
602 void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
603 int orig_linesize[3], int coded_linesize,
604 AVCodecContext *avctx);
605
606 /* FFT computation */
607
608 /* NOTE: soon integer code will be added, so you must use the
609 FFTSample type */
610 typedef float FFTSample;
611
612 struct MDCTContext;
613
614 typedef struct FFTComplex {
615 FFTSample re, im;
616 } FFTComplex;
617
618 typedef struct FFTContext {
619 int nbits;
620 int inverse;
621 uint16_t *revtab;
622 FFTComplex *exptab;
623 FFTComplex *exptab1; /* only used by SSE code */
624 void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
625 void (*imdct_calc)(struct MDCTContext *s, FFTSample *output,
626 const FFTSample *input, FFTSample *tmp);
627 } FFTContext;
628
629 int ff_fft_init(FFTContext *s, int nbits, int inverse);
630 void ff_fft_permute(FFTContext *s, FFTComplex *z);
631 void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
632 void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
633 void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
634 void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
635 void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
636
637 static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
638 {
639 s->fft_calc(s, z);
640 }
641 void ff_fft_end(FFTContext *s);
642
643 /* MDCT computation */
644
645 typedef struct MDCTContext {
646 int n; /* size of MDCT (i.e. number of input data * 2) */
647 int nbits; /* n = 2^nbits */
648 /* pre/post rotation tables */
649 FFTSample *tcos;
650 FFTSample *tsin;
651 FFTContext fft;
652 } MDCTContext;
653
654 int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
655 void ff_imdct_calc(MDCTContext *s, FFTSample *output,
656 const FFTSample *input, FFTSample *tmp);
657 void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
658 const FFTSample *input, FFTSample *tmp);
659 void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output,
660 const FFTSample *input, FFTSample *tmp);
661 void ff_mdct_calc(MDCTContext *s, FFTSample *out,
662 const FFTSample *input, FFTSample *tmp);
663 void ff_mdct_end(MDCTContext *s);
664
665 #define WARPER8_16(name8, name16)\
666 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
667 return name8(s, dst , src , stride, h)\
668 +name8(s, dst+8 , src+8 , stride, h);\
669 }
670
671 #define WARPER8_16_SQ(name8, name16)\
672 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
673 int score=0;\
674 score +=name8(s, dst , src , stride, 8);\
675 score +=name8(s, dst+8 , src+8 , stride, 8);\
676 if(h==16){\
677 dst += 8*stride;\
678 src += 8*stride;\
679 score +=name8(s, dst , src , stride, 8);\
680 score +=name8(s, dst+8 , src+8 , stride, 8);\
681 }\
682 return score;\
683 }
684
685
686 static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
687 {
688 int i;
689 for(i=0; i<h; i++)
690 {
691 ST16(dst , LD16(src ));
692 dst+=dstStride;
693 src+=srcStride;
694 }
695 }
696
697 static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
698 {
699 int i;
700 for(i=0; i<h; i++)
701 {
702 ST32(dst , LD32(src ));
703 dst+=dstStride;
704 src+=srcStride;
705 }
706 }
707
708 static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
709 {
710 int i;
711 for(i=0; i<h; i++)
712 {
713 ST32(dst , LD32(src ));
714 ST32(dst+4 , LD32(src+4 ));
715 dst+=dstStride;
716 src+=srcStride;
717 }
718 }
719
720 static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
721 {
722 int i;
723 for(i=0; i<h; i++)
724 {
725 ST32(dst , LD32(src ));
726 ST32(dst+4 , LD32(src+4 ));
727 dst[8]= src[8];
728 dst+=dstStride;
729 src+=srcStride;
730 }
731 }
732
733 static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
734 {
735 int i;
736 for(i=0; i<h; i++)
737 {
738 ST32(dst , LD32(src ));
739 ST32(dst+4 , LD32(src+4 ));
740 ST32(dst+8 , LD32(src+8 ));
741 ST32(dst+12, LD32(src+12));
742 dst+=dstStride;
743 src+=srcStride;
744 }
745 }
746
747 static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
748 {
749 int i;
750 for(i=0; i<h; i++)
751 {
752 ST32(dst , LD32(src ));
753 ST32(dst+4 , LD32(src+4 ));
754 ST32(dst+8 , LD32(src+8 ));
755 ST32(dst+12, LD32(src+12));
756 dst[16]= src[16];
757 dst+=dstStride;
758 src+=srcStride;
759 }
760 }
761
762 #endif