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Imported Debian version 2.5.0~trusty1.1
[deb_ffmpeg.git] / ffmpeg / libavfilter / libmpcodecs / vf_pp7.c
CommitLineData
2ba45a60
DM		 1/*
2 * Copyright (C) 2005 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of MPlayer.
5 *
6 * MPlayer is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * MPlayer 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
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21
22#include <stdio.h>
23#include <stdlib.h>
24#include <string.h>
25#include <inttypes.h>
26#include <math.h>
27
28#include "config.h"
29
30#include "mp_msg.h"
31#include "cpudetect.h"
32
33#if HAVE_MALLOC_H
34#include <malloc.h>
35#endif
36
37#include "libavutil/mem.h"
38
39#include "img_format.h"
40#include "mp_image.h"
41#include "vf.h"
42#include "libvo/fastmemcpy.h"
43
44#define XMIN(a,b) ((a) < (b) ? (a) : (b))
45#define XMAX(a,b) ((a) > (b) ? (a) : (b))
46
47//===========================================================================//
48DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
49{ 0, 48, 12, 60, 3, 51, 15, 63, },
50{ 32, 16, 44, 28, 35, 19, 47, 31, },
51{ 8, 56, 4, 52, 11, 59, 7, 55, },
52{ 40, 24, 36, 20, 43, 27, 39, 23, },
53{ 2, 50, 14, 62, 1, 49, 13, 61, },
54{ 34, 18, 46, 30, 33, 17, 45, 29, },
55{ 10, 58, 6, 54, 9, 57, 5, 53, },
56{ 42, 26, 38, 22, 41, 25, 37, 21, },
57};
58
59struct vf_priv_s {
60 int qp;
61 int mode;
62 int mpeg2;
63 int temp_stride;
64 uint8_t *src;
65};
66#if 0
67static inline void dct7_c(int16_t *dst, int s0, int s1, int s2, int s3, int step){
68 int s, d;
69 int dst2[64];
70//#define S0 (1024/0.37796447300922719759)
71#define C0 ((int)(1024*0.37796447300922719759+0.5)) //sqrt(1/7)
72#define C1 ((int)(1024*0.53452248382484879308/6+0.5)) //sqrt(2/7)/6
73
74#define C2 ((int)(1024*0.45221175985034745004/2+0.5))
75#define C3 ((int)(1024*0.36264567479870879474/2+0.5))
76
77//0.1962505182412941918 0.0149276808419397944-0.2111781990832339584
78#define C4 ((int)(1024*0.1962505182412941918+0.5))
79#define C5 ((int)(1024*0.0149276808419397944+0.5))
80//#define C6 ((int)(1024*0.2111781990832339584+0.5))
81#if 0
82 s= s0 + s1 + s2;
83 dst[0*step] = ((s + s3)*C0 + 512) >> 10;
84 s= (s - 6*s3)*C1 + 512;
85 d= (s0-s2)*C4 + (s1-s2)*C5;
86 dst[1*step] = (s + 2*d)>>10;
87 s -= d;
88 d= (s1-s0)*C2 + (s1-s2)*C3;
89 dst[2*step] = (s + d)>>10;
90 dst[3*step] = (s - d)>>10;
91#elif 1
92 s = s3+s3;
93 s3= s-s0;
94 s0= s+s0;
95 s = s2+s1;
96 s2= s2-s1;
97 dst[0*step]= s0 + s;
98 dst[2*step]= s0 - s;
99 dst[1*step]= 2*s3 + s2;
100 dst[3*step]= s3 - 2*s2;
101#else
102 int i,j,n=7;
103 for(i=0; i<7; i+=2){
104 dst2[i*step/2]= 0;
105 for(j=0; j<4; j++)
106 dst2[i*step/2] += src[j*step] * cos(i*M_PI/n*(j+0.5)) * sqrt((i?2.0:1.0)/n);
107 if(fabs(dst2[i*step/2] - dst[i*step/2]) > 20)
108 printf("%d %d %d (%d %d %d %d) -> (%d %d %d %d)\n", i,dst2[i*step/2], dst[i*step/2],src[0*step], src[1*step], src[2*step], src[3*step], dst[0*step], dst[1*step],dst[2*step],dst[3*step]);
109 }
110#endif
111}
112#endif
113
114static inline void dctA_c(int16_t *dst, uint8_t *src, int stride){
115 int i;
116
117 for(i=0; i<4; i++){
118 int s0= src[0*stride] + src[6*stride];
119 int s1= src[1*stride] + src[5*stride];
120 int s2= src[2*stride] + src[4*stride];
121 int s3= src[3*stride];
122 int s= s3+s3;
123 s3= s-s0;
124 s0= s+s0;
125 s = s2+s1;
126 s2= s2-s1;
127 dst[0]= s0 + s;
128 dst[2]= s0 - s;
129 dst[1]= 2*s3 + s2;
130 dst[3]= s3 - 2*s2;
131 src++;
132 dst+=4;
133 }
134}
135
136static void dctB_c(int16_t *dst, int16_t *src){
137 int i;
138
139 for(i=0; i<4; i++){
140 int s0= src[0*4] + src[6*4];
141 int s1= src[1*4] + src[5*4];
142 int s2= src[2*4] + src[4*4];
143 int s3= src[3*4];
144 int s= s3+s3;
145 s3= s-s0;
146 s0= s+s0;
147 s = s2+s1;
148 s2= s2-s1;
149 dst[0*4]= s0 + s;
150 dst[2*4]= s0 - s;
151 dst[1*4]= 2*s3 + s2;
152 dst[3*4]= s3 - 2*s2;
153 src++;
154 dst++;
155 }
156}
157
f6fa7814 158#if HAVE_MMX_INLINE
2ba45a60
DM		 159static void dctB_mmx(int16_t *dst, int16_t *src){
160 __asm__ volatile (
161 "movq (%0), %%mm0 \n\t"
162 "movq 1*4*2(%0), %%mm1 \n\t"
163 "paddw 6*4*2(%0), %%mm0 \n\t"
164 "paddw 5*4*2(%0), %%mm1 \n\t"
165 "movq 2*4*2(%0), %%mm2 \n\t"
166 "movq 3*4*2(%0), %%mm3 \n\t"
167 "paddw 4*4*2(%0), %%mm2 \n\t"
168 "paddw %%mm3, %%mm3 \n\t" //s
169 "movq %%mm3, %%mm4 \n\t" //s
170 "psubw %%mm0, %%mm3 \n\t" //s-s0
171 "paddw %%mm0, %%mm4 \n\t" //s+s0
172 "movq %%mm2, %%mm0 \n\t" //s2
173 "psubw %%mm1, %%mm2 \n\t" //s2-s1
174 "paddw %%mm1, %%mm0 \n\t" //s2+s1
175 "movq %%mm4, %%mm1 \n\t" //s0'
176 "psubw %%mm0, %%mm4 \n\t" //s0'-s'
177 "paddw %%mm0, %%mm1 \n\t" //s0'+s'
178 "movq %%mm3, %%mm0 \n\t" //s3'
179 "psubw %%mm2, %%mm3 \n\t"
180 "psubw %%mm2, %%mm3 \n\t"
181 "paddw %%mm0, %%mm2 \n\t"
182 "paddw %%mm0, %%mm2 \n\t"
183 "movq %%mm1, (%1) \n\t"
184 "movq %%mm4, 2*4*2(%1) \n\t"
185 "movq %%mm2, 1*4*2(%1) \n\t"
186 "movq %%mm3, 3*4*2(%1) \n\t"
187 :: "r" (src), "r"(dst)
188 );
189}
190#endif
191
192static void (*dctB)(int16_t *dst, int16_t *src)= dctB_c;
193
194#define N0 4
195#define N1 5
196#define N2 10
197#define SN0 2
198#define SN1 2.2360679775
199#define SN2 3.16227766017
200#define N (1<<16)
201
202static const int factor[16]={
203 N/(N0*N0), N/(N0*N1), N/(N0*N0),N/(N0*N2),
204 N/(N1*N0), N/(N1*N1), N/(N1*N0),N/(N1*N2),
205 N/(N0*N0), N/(N0*N1), N/(N0*N0),N/(N0*N2),
206 N/(N2*N0), N/(N2*N1), N/(N2*N0),N/(N2*N2),
207};
208
209static const int thres[16]={
210 N/(SN0*SN0), N/(SN0*SN2), N/(SN0*SN0),N/(SN0*SN2),
211 N/(SN2*SN0), N/(SN2*SN2), N/(SN2*SN0),N/(SN2*SN2),
212 N/(SN0*SN0), N/(SN0*SN2), N/(SN0*SN0),N/(SN0*SN2),
213 N/(SN2*SN0), N/(SN2*SN2), N/(SN2*SN0),N/(SN2*SN2),
214};
215
216static int thres2[99][16];
217
218static void init_thres2(void){
219 int qp, i;
220 int bias= 0; //FIXME
221
222 for(qp=0; qp<99; qp++){
223 for(i=0; i<16; i++){
224 thres2[qp][i]= ((i&1)?SN2:SN0) * ((i&4)?SN2:SN0) * XMAX(1,qp) * (1<<2) - 1 - bias;
225 }
226 }
227}
228
229static int hardthresh_c(int16_t *src, int qp){
230 int i;
231 int a;
232
233 a= src[0] * factor[0];
234 for(i=1; i<16; i++){
235 unsigned int threshold1= thres2[qp][i];
236 unsigned int threshold2= (threshold1<<1);
237 int level= src[i];
238 if(((unsigned)(level+threshold1))>threshold2){
239 a += level * factor[i];
240 }
241 }
242 return (a + (1<<11))>>12;
243}
244
245static int mediumthresh_c(int16_t *src, int qp){
246 int i;
247 int a;
248
249 a= src[0] * factor[0];
250 for(i=1; i<16; i++){
251 unsigned int threshold1= thres2[qp][i];
252 unsigned int threshold2= (threshold1<<1);
253 int level= src[i];
254 if(((unsigned)(level+threshold1))>threshold2){
255 if(((unsigned)(level+2*threshold1))>2*threshold2){
256 a += level * factor[i];
257 }else{
258 if(level>0) a+= 2*(level - (int)threshold1)*factor[i];
259 else a+= 2*(level + (int)threshold1)*factor[i];
260 }
261 }
262 }
263 return (a + (1<<11))>>12;
264}
265
266static int softthresh_c(int16_t *src, int qp){
267 int i;
268 int a;
269
270 a= src[0] * factor[0];
271 for(i=1; i<16; i++){
272 unsigned int threshold1= thres2[qp][i];
273 unsigned int threshold2= (threshold1<<1);
274 int level= src[i];
275 if(((unsigned)(level+threshold1))>threshold2){
276 if(level>0) a+= (level - (int)threshold1)*factor[i];
277 else a+= (level + (int)threshold1)*factor[i];
278 }
279 }
280 return (a + (1<<11))>>12;
281}
282
283static int (*requantize)(int16_t *src, int qp)= hardthresh_c;
284
285static void filter(struct vf_priv_s *p, uint8_t *dst, uint8_t *src, int dst_stride, int src_stride, int width, int height, uint8_t *qp_store, int qp_stride, int is_luma){
286 int x, y;
287 const int stride= is_luma ? p->temp_stride : ((width+16+15)&(~15));
288 uint8_t *p_src= p->src + 8*stride;
289 int16_t *block= (int16_t *)p->src;
290 int16_t *temp= (int16_t *)(p->src + 32);
291
292 if (!src || !dst) return; // HACK avoid crash for Y8 colourspace
293 for(y=0; y<height; y++){
294 int index= 8 + 8*stride + y*stride;
295 fast_memcpy(p_src + index, src + y*src_stride, width);
296 for(x=0; x<8; x++){
297 p_src[index - x - 1]= p_src[index + x ];
298 p_src[index + width + x ]= p_src[index + width - x - 1];
299 }
300 }
301 for(y=0; y<8; y++){
302 fast_memcpy(p_src + ( 7-y)*stride, p_src + ( y+8)*stride, stride);
303 fast_memcpy(p_src + (height+8+y)*stride, p_src + (height-y+7)*stride, stride);
304 }
305 //FIXME (try edge emu)
306
307 for(y=0; y<height; y++){
308 for(x=-8; x<0; x+=4){
309 const int index= x + y*stride + (8-3)*(1+stride) + 8; //FIXME silly offset
310 uint8_t *src = p_src + index;
311 int16_t *tp= temp+4*x;
312
313 dctA_c(tp+4*8, src, stride);
314 }
315 for(x=0; x<width; ){
316 const int qps= 3 + is_luma;
317 int qp;
318 int end= XMIN(x+8, width);
319
320 if(p->qp)
321 qp= p->qp;
322 else{
323 qp= qp_store[ (XMIN(x, width-1)>>qps) + (XMIN(y, height-1)>>qps) * qp_stride];
324 qp=norm_qscale(qp, p->mpeg2);
325 }
326 for(; x<end; x++){
327 const int index= x + y*stride + (8-3)*(1+stride) + 8; //FIXME silly offset
328 uint8_t *src = p_src + index;
329 int16_t *tp= temp+4*x;
330 int v;
331
332 if((x&3)==0)
333 dctA_c(tp+4*8, src, stride);
334
335 dctB(block, tp);
336
337 v= requantize(block, qp);
338 v= (v + dither[y&7][x&7])>>6;
339 if((unsigned)v > 255)
340 v= (-v)>>31;
341 dst[x + y*dst_stride]= v;
342 }
343 }
344 }
345}
346
347static int config(struct vf_instance *vf,
348 int width, int height, int d_width, int d_height,
349 unsigned int flags, unsigned int outfmt){
350 int h= (height+16+15)&(~15);
351
352 vf->priv->temp_stride= (width+16+15)&(~15);
353 vf->priv->src = av_malloc(vf->priv->temp_stride*(h+8)*sizeof(uint8_t));
354
355 return ff_vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
356}
357
358static void get_image(struct vf_instance *vf, mp_image_t *mpi){
359 if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
360 // ok, we can do pp in-place (or pp disabled):
361 vf->dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
362 mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
363 mpi->planes[0]=vf->dmpi->planes[0];
364 mpi->stride[0]=vf->dmpi->stride[0];
365 mpi->width=vf->dmpi->width;
366 if(mpi->flags&MP_IMGFLAG_PLANAR){
367 mpi->planes[1]=vf->dmpi->planes[1];
368 mpi->planes[2]=vf->dmpi->planes[2];
369 mpi->stride[1]=vf->dmpi->stride[1];
370 mpi->stride[2]=vf->dmpi->stride[2];
371 }
372 mpi->flags|=MP_IMGFLAG_DIRECT;
373}
374
375static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
376 mp_image_t *dmpi;
377
378 if(mpi->flags&MP_IMGFLAG_DIRECT){
379 dmpi=vf->dmpi;
380 }else{
381 // no DR, so get a new image! hope we'll get DR buffer:
382 dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
383 MP_IMGTYPE_TEMP,
384 MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
385 mpi->width,mpi->height);
386 ff_vf_clone_mpi_attributes(dmpi, mpi);
387 }
388
389 vf->priv->mpeg2= mpi->qscale_type;
390 if(mpi->qscale || vf->priv->qp){
391 filter(vf->priv, dmpi->planes[0], mpi->planes[0], dmpi->stride[0], mpi->stride[0], mpi->w, mpi->h, mpi->qscale, mpi->qstride, 1);
392 filter(vf->priv, dmpi->planes[1], mpi->planes[1], dmpi->stride[1], mpi->stride[1], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, mpi->qscale, mpi->qstride, 0);
393 filter(vf->priv, dmpi->planes[2], mpi->planes[2], dmpi->stride[2], mpi->stride[2], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, mpi->qscale, mpi->qstride, 0);
394 }else{
395 memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
396 memcpy_pic(dmpi->planes[1], mpi->planes[1], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[1], mpi->stride[1]);
397 memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[2], mpi->stride[2]);
398 }
399
f6fa7814 400#if HAVE_MMX_INLINE
2ba45a60
DM		 401 if(ff_gCpuCaps.hasMMX) __asm__ volatile ("emms\n\t");
402#endif
f6fa7814 403#if HAVE_MMXEXT_INLINE
2ba45a60
DM		 404 if(ff_gCpuCaps.hasMMX2) __asm__ volatile ("sfence\n\t");
405#endif
406
407 return ff_vf_next_put_image(vf,dmpi, pts);
408}
409
410static void uninit(struct vf_instance *vf){
411 if(!vf->priv) return;
412
413 av_free(vf->priv->src);
414 vf->priv->src= NULL;
415
416 free(vf->priv);
417 vf->priv=NULL;
418}
419
420//===========================================================================//
421static int query_format(struct vf_instance *vf, unsigned int fmt){
422 switch(fmt){
423 case IMGFMT_YVU9:
424 case IMGFMT_IF09:
425 case IMGFMT_YV12:
426 case IMGFMT_I420:
427 case IMGFMT_IYUV:
428 case IMGFMT_CLPL:
429 case IMGFMT_Y800:
430 case IMGFMT_Y8:
431 case IMGFMT_444P:
432 case IMGFMT_422P:
433 case IMGFMT_411P:
434 return ff_vf_next_query_format(vf,fmt);
435 }
436 return 0;
437}
438
439static int control(struct vf_instance *vf, int request, void* data){
440 return ff_vf_next_control(vf,request,data);
441}
442
443static int vf_open(vf_instance_t *vf, char *args){
444 vf->config=config;
445 vf->put_image=put_image;
446 vf->get_image=get_image;
447 vf->query_format=query_format;
448 vf->uninit=uninit;
449 vf->control= control;
450 vf->priv=malloc(sizeof(struct vf_priv_s));
451 memset(vf->priv, 0, sizeof(struct vf_priv_s));
452
453 if (args) sscanf(args, "%d:%d", &vf->priv->qp, &vf->priv->mode);
454
455 if(vf->priv->qp < 0)
456 vf->priv->qp = 0;
457
458 init_thres2();
459
460 switch(vf->priv->mode){
461 case 0: requantize= hardthresh_c; break;
462 case 1: requantize= softthresh_c; break;
463 default:
464 case 2: requantize= mediumthresh_c; break;
465 }
466
f6fa7814 467#if HAVE_MMX_INLINE
2ba45a60
DM		 468 if(ff_gCpuCaps.hasMMX){
469 dctB= dctB_mmx;
470 }
471#endif
472#if 0
473 if(ff_gCpuCaps.hasMMX){
474 switch(vf->priv->mode){
475 case 0: requantize= hardthresh_mmx; break;
476 case 1: requantize= softthresh_mmx; break;
477 }
478 }
479#endif
480
481 return 1;
482}
483
484const vf_info_t ff_vf_info_pp7 = {
485 "postprocess 7",
486 "pp7",
487 "Michael Niedermayer",
488 "",
489 vf_open,
490 NULL
491};
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