Add FFMPEG_ prefix to all multiple inclusion guards.
[libav.git] / libavcodec / mpegvideo_common.h
1 /*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard.
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file mpegvideo_common.h
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30 #ifndef FFMPEG_MPEGVIDEO_COMMON_H
31 #define FFMPEG_MPEGVIDEO_COMMON_H
32
33 #include "avcodec.h"
34 #include "dsputil.h"
35 #include "mpegvideo.h"
36 #include "mjpegenc.h"
37 #include "msmpeg4.h"
38 #include "faandct.h"
39 #include <limits.h>
40
41 int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
42 int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
43 void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
44 void copy_picture(Picture *dst, Picture *src);
45
46 /**
47 * allocates a Picture
48 * The pixels are allocated/set by calling get_buffer() if shared=0
49 */
50 int alloc_picture(MpegEncContext *s, Picture *pic, int shared);
51
52 /**
53 * sets the given MpegEncContext to common defaults (same for encoding and decoding).
54 * the changed fields will not depend upon the prior state of the MpegEncContext.
55 */
56 void MPV_common_defaults(MpegEncContext *s);
57
58 static inline void gmc1_motion(MpegEncContext *s,
59 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
60 uint8_t **ref_picture)
61 {
62 uint8_t *ptr;
63 int offset, src_x, src_y, linesize, uvlinesize;
64 int motion_x, motion_y;
65 int emu=0;
66
67 motion_x= s->sprite_offset[0][0];
68 motion_y= s->sprite_offset[0][1];
69 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
70 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
71 motion_x<<=(3-s->sprite_warping_accuracy);
72 motion_y<<=(3-s->sprite_warping_accuracy);
73 src_x = av_clip(src_x, -16, s->width);
74 if (src_x == s->width)
75 motion_x =0;
76 src_y = av_clip(src_y, -16, s->height);
77 if (src_y == s->height)
78 motion_y =0;
79
80 linesize = s->linesize;
81 uvlinesize = s->uvlinesize;
82
83 ptr = ref_picture[0] + (src_y * linesize) + src_x;
84
85 if(s->flags&CODEC_FLAG_EMU_EDGE){
86 if( (unsigned)src_x >= s->h_edge_pos - 17
87 || (unsigned)src_y >= s->v_edge_pos - 17){
88 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
89 ptr= s->edge_emu_buffer;
90 }
91 }
92
93 if((motion_x|motion_y)&7){
94 s->dsp.gmc1(dest_y , ptr , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
95 s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
96 }else{
97 int dxy;
98
99 dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2);
100 if (s->no_rounding){
101 s->dsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
102 }else{
103 s->dsp.put_pixels_tab [0][dxy](dest_y, ptr, linesize, 16);
104 }
105 }
106
107 if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
108
109 motion_x= s->sprite_offset[1][0];
110 motion_y= s->sprite_offset[1][1];
111 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
112 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
113 motion_x<<=(3-s->sprite_warping_accuracy);
114 motion_y<<=(3-s->sprite_warping_accuracy);
115 src_x = av_clip(src_x, -8, s->width>>1);
116 if (src_x == s->width>>1)
117 motion_x =0;
118 src_y = av_clip(src_y, -8, s->height>>1);
119 if (src_y == s->height>>1)
120 motion_y =0;
121
122 offset = (src_y * uvlinesize) + src_x;
123 ptr = ref_picture[1] + offset;
124 if(s->flags&CODEC_FLAG_EMU_EDGE){
125 if( (unsigned)src_x >= (s->h_edge_pos>>1) - 9
126 || (unsigned)src_y >= (s->v_edge_pos>>1) - 9){
127 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
128 ptr= s->edge_emu_buffer;
129 emu=1;
130 }
131 }
132 s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
133
134 ptr = ref_picture[2] + offset;
135 if(emu){
136 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
137 ptr= s->edge_emu_buffer;
138 }
139 s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
140
141 return;
142 }
143
144 static inline void gmc_motion(MpegEncContext *s,
145 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
146 uint8_t **ref_picture)
147 {
148 uint8_t *ptr;
149 int linesize, uvlinesize;
150 const int a= s->sprite_warping_accuracy;
151 int ox, oy;
152
153 linesize = s->linesize;
154 uvlinesize = s->uvlinesize;
155
156 ptr = ref_picture[0];
157
158 ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16;
159 oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16;
160
161 s->dsp.gmc(dest_y, ptr, linesize, 16,
162 ox,
163 oy,
164 s->sprite_delta[0][0], s->sprite_delta[0][1],
165 s->sprite_delta[1][0], s->sprite_delta[1][1],
166 a+1, (1<<(2*a+1)) - s->no_rounding,
167 s->h_edge_pos, s->v_edge_pos);
168 s->dsp.gmc(dest_y+8, ptr, linesize, 16,
169 ox + s->sprite_delta[0][0]*8,
170 oy + s->sprite_delta[1][0]*8,
171 s->sprite_delta[0][0], s->sprite_delta[0][1],
172 s->sprite_delta[1][0], s->sprite_delta[1][1],
173 a+1, (1<<(2*a+1)) - s->no_rounding,
174 s->h_edge_pos, s->v_edge_pos);
175
176 if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
177
178 ox= s->sprite_offset[1][0] + s->sprite_delta[0][0]*s->mb_x*8 + s->sprite_delta[0][1]*s->mb_y*8;
179 oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8;
180
181 ptr = ref_picture[1];
182 s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
183 ox,
184 oy,
185 s->sprite_delta[0][0], s->sprite_delta[0][1],
186 s->sprite_delta[1][0], s->sprite_delta[1][1],
187 a+1, (1<<(2*a+1)) - s->no_rounding,
188 s->h_edge_pos>>1, s->v_edge_pos>>1);
189
190 ptr = ref_picture[2];
191 s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
192 ox,
193 oy,
194 s->sprite_delta[0][0], s->sprite_delta[0][1],
195 s->sprite_delta[1][0], s->sprite_delta[1][1],
196 a+1, (1<<(2*a+1)) - s->no_rounding,
197 s->h_edge_pos>>1, s->v_edge_pos>>1);
198 }
199
200 static inline int hpel_motion(MpegEncContext *s,
201 uint8_t *dest, uint8_t *src,
202 int field_based, int field_select,
203 int src_x, int src_y,
204 int width, int height, int stride,
205 int h_edge_pos, int v_edge_pos,
206 int w, int h, op_pixels_func *pix_op,
207 int motion_x, int motion_y)
208 {
209 int dxy;
210 int emu=0;
211
212 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
213 src_x += motion_x >> 1;
214 src_y += motion_y >> 1;
215
216 /* WARNING: do no forget half pels */
217 src_x = av_clip(src_x, -16, width); //FIXME unneeded for emu?
218 if (src_x == width)
219 dxy &= ~1;
220 src_y = av_clip(src_y, -16, height);
221 if (src_y == height)
222 dxy &= ~2;
223 src += src_y * stride + src_x;
224
225 if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
226 if( (unsigned)src_x > h_edge_pos - (motion_x&1) - w
227 || (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
228 ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based,
229 src_x, src_y<<field_based, h_edge_pos, s->v_edge_pos);
230 src= s->edge_emu_buffer;
231 emu=1;
232 }
233 }
234 if(field_select)
235 src += s->linesize;
236 pix_op[dxy](dest, src, stride, h);
237 return emu;
238 }
239
240 /* apply one mpeg motion vector to the three components */
241 static av_always_inline void mpeg_motion(MpegEncContext *s,
242 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
243 int field_based, int bottom_field, int field_select,
244 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
245 int motion_x, int motion_y, int h)
246 {
247 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
248 int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize;
249
250 #if 0
251 if(s->quarter_sample)
252 {
253 motion_x>>=1;
254 motion_y>>=1;
255 }
256 #endif
257
258 v_edge_pos = s->v_edge_pos >> field_based;
259 linesize = s->current_picture.linesize[0] << field_based;
260 uvlinesize = s->current_picture.linesize[1] << field_based;
261
262 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
263 src_x = s->mb_x* 16 + (motion_x >> 1);
264 src_y =(s->mb_y<<(4-field_based)) + (motion_y >> 1);
265
266 if (s->out_format == FMT_H263) {
267 if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
268 mx = (motion_x>>1)|(motion_x&1);
269 my = motion_y >>1;
270 uvdxy = ((my & 1) << 1) | (mx & 1);
271 uvsrc_x = s->mb_x* 8 + (mx >> 1);
272 uvsrc_y = (s->mb_y<<(3-field_based)) + (my >> 1);
273 }else{
274 uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
275 uvsrc_x = src_x>>1;
276 uvsrc_y = src_y>>1;
277 }
278 }else if(s->out_format == FMT_H261){//even chroma mv's are full pel in H261
279 mx = motion_x / 4;
280 my = motion_y / 4;
281 uvdxy = 0;
282 uvsrc_x = s->mb_x*8 + mx;
283 uvsrc_y = s->mb_y*8 + my;
284 } else {
285 if(s->chroma_y_shift){
286 mx = motion_x / 2;
287 my = motion_y / 2;
288 uvdxy = ((my & 1) << 1) | (mx & 1);
289 uvsrc_x = s->mb_x* 8 + (mx >> 1);
290 uvsrc_y = (s->mb_y<<(3-field_based)) + (my >> 1);
291 } else {
292 if(s->chroma_x_shift){
293 //Chroma422
294 mx = motion_x / 2;
295 uvdxy = ((motion_y & 1) << 1) | (mx & 1);
296 uvsrc_x = s->mb_x* 8 + (mx >> 1);
297 uvsrc_y = src_y;
298 } else {
299 //Chroma444
300 uvdxy = dxy;
301 uvsrc_x = src_x;
302 uvsrc_y = src_y;
303 }
304 }
305 }
306
307 ptr_y = ref_picture[0] + src_y * linesize + src_x;
308 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
309 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
310
311 if( (unsigned)src_x > s->h_edge_pos - (motion_x&1) - 16
312 || (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
313 if(s->codec_id == CODEC_ID_MPEG2VIDEO ||
314 s->codec_id == CODEC_ID_MPEG1VIDEO){
315 av_log(s->avctx,AV_LOG_DEBUG,"MPEG motion vector out of boundary\n");
316 return ;
317 }
318 ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17+field_based,
319 src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
320 ptr_y = s->edge_emu_buffer;
321 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
322 uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
323 ff_emulated_edge_mc(uvbuf , ptr_cb, s->uvlinesize, 9, 9+field_based,
324 uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
325 ff_emulated_edge_mc(uvbuf+16, ptr_cr, s->uvlinesize, 9, 9+field_based,
326 uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
327 ptr_cb= uvbuf;
328 ptr_cr= uvbuf+16;
329 }
330 }
331
332 if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data
333 dest_y += s->linesize;
334 dest_cb+= s->uvlinesize;
335 dest_cr+= s->uvlinesize;
336 }
337
338 if(field_select){
339 ptr_y += s->linesize;
340 ptr_cb+= s->uvlinesize;
341 ptr_cr+= s->uvlinesize;
342 }
343
344 pix_op[0][dxy](dest_y, ptr_y, linesize, h);
345
346 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
347 pix_op[s->chroma_x_shift][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
348 pix_op[s->chroma_x_shift][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
349 }
350 if((ENABLE_H261_ENCODER || ENABLE_H261_DECODER) && s->out_format == FMT_H261){
351 ff_h261_loop_filter(s);
352 }
353 }
354
355 //FIXME move to dsputil, avg variant, 16x16 version
356 static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
357 int x;
358 uint8_t * const top = src[1];
359 uint8_t * const left = src[2];
360 uint8_t * const mid = src[0];
361 uint8_t * const right = src[3];
362 uint8_t * const bottom= src[4];
363 #define OBMC_FILTER(x, t, l, m, r, b)\
364 dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
365 #define OBMC_FILTER4(x, t, l, m, r, b)\
366 OBMC_FILTER(x , t, l, m, r, b);\
367 OBMC_FILTER(x+1 , t, l, m, r, b);\
368 OBMC_FILTER(x +stride, t, l, m, r, b);\
369 OBMC_FILTER(x+1+stride, t, l, m, r, b);
370
371 x=0;
372 OBMC_FILTER (x , 2, 2, 4, 0, 0);
373 OBMC_FILTER (x+1, 2, 1, 5, 0, 0);
374 OBMC_FILTER4(x+2, 2, 1, 5, 0, 0);
375 OBMC_FILTER4(x+4, 2, 0, 5, 1, 0);
376 OBMC_FILTER (x+6, 2, 0, 5, 1, 0);
377 OBMC_FILTER (x+7, 2, 0, 4, 2, 0);
378 x+= stride;
379 OBMC_FILTER (x , 1, 2, 5, 0, 0);
380 OBMC_FILTER (x+1, 1, 2, 5, 0, 0);
381 OBMC_FILTER (x+6, 1, 0, 5, 2, 0);
382 OBMC_FILTER (x+7, 1, 0, 5, 2, 0);
383 x+= stride;
384 OBMC_FILTER4(x , 1, 2, 5, 0, 0);
385 OBMC_FILTER4(x+2, 1, 1, 6, 0, 0);
386 OBMC_FILTER4(x+4, 1, 0, 6, 1, 0);
387 OBMC_FILTER4(x+6, 1, 0, 5, 2, 0);
388 x+= 2*stride;
389 OBMC_FILTER4(x , 0, 2, 5, 0, 1);
390 OBMC_FILTER4(x+2, 0, 1, 6, 0, 1);
391 OBMC_FILTER4(x+4, 0, 0, 6, 1, 1);
392 OBMC_FILTER4(x+6, 0, 0, 5, 2, 1);
393 x+= 2*stride;
394 OBMC_FILTER (x , 0, 2, 5, 0, 1);
395 OBMC_FILTER (x+1, 0, 2, 5, 0, 1);
396 OBMC_FILTER4(x+2, 0, 1, 5, 0, 2);
397 OBMC_FILTER4(x+4, 0, 0, 5, 1, 2);
398 OBMC_FILTER (x+6, 0, 0, 5, 2, 1);
399 OBMC_FILTER (x+7, 0, 0, 5, 2, 1);
400 x+= stride;
401 OBMC_FILTER (x , 0, 2, 4, 0, 2);
402 OBMC_FILTER (x+1, 0, 1, 5, 0, 2);
403 OBMC_FILTER (x+6, 0, 0, 5, 1, 2);
404 OBMC_FILTER (x+7, 0, 0, 4, 2, 2);
405 }
406
407 /* obmc for 1 8x8 luma block */
408 static inline void obmc_motion(MpegEncContext *s,
409 uint8_t *dest, uint8_t *src,
410 int src_x, int src_y,
411 op_pixels_func *pix_op,
412 int16_t mv[5][2]/* mid top left right bottom*/)
413 #define MID 0
414 {
415 int i;
416 uint8_t *ptr[5];
417
418 assert(s->quarter_sample==0);
419
420 for(i=0; i<5; i++){
421 if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
422 ptr[i]= ptr[MID];
423 }else{
424 ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
425 hpel_motion(s, ptr[i], src, 0, 0,
426 src_x, src_y,
427 s->width, s->height, s->linesize,
428 s->h_edge_pos, s->v_edge_pos,
429 8, 8, pix_op,
430 mv[i][0], mv[i][1]);
431 }
432 }
433
434 put_obmc(dest, ptr, s->linesize);
435 }
436
437 static inline void qpel_motion(MpegEncContext *s,
438 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
439 int field_based, int bottom_field, int field_select,
440 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
441 qpel_mc_func (*qpix_op)[16],
442 int motion_x, int motion_y, int h)
443 {
444 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
445 int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
446
447 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
448 src_x = s->mb_x * 16 + (motion_x >> 2);
449 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
450
451 v_edge_pos = s->v_edge_pos >> field_based;
452 linesize = s->linesize << field_based;
453 uvlinesize = s->uvlinesize << field_based;
454
455 if(field_based){
456 mx= motion_x/2;
457 my= motion_y>>1;
458 }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){
459 static const int rtab[8]= {0,0,1,1,0,0,0,1};
460 mx= (motion_x>>1) + rtab[motion_x&7];
461 my= (motion_y>>1) + rtab[motion_y&7];
462 }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
463 mx= (motion_x>>1)|(motion_x&1);
464 my= (motion_y>>1)|(motion_y&1);
465 }else{
466 mx= motion_x/2;
467 my= motion_y/2;
468 }
469 mx= (mx>>1)|(mx&1);
470 my= (my>>1)|(my&1);
471
472 uvdxy= (mx&1) | ((my&1)<<1);
473 mx>>=1;
474 my>>=1;
475
476 uvsrc_x = s->mb_x * 8 + mx;
477 uvsrc_y = s->mb_y * (8 >> field_based) + my;
478
479 ptr_y = ref_picture[0] + src_y * linesize + src_x;
480 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
481 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
482
483 if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 16
484 || (unsigned)src_y > v_edge_pos - (motion_y&3) - h ){
485 ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17+field_based,
486 src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
487 ptr_y= s->edge_emu_buffer;
488 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
489 uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
490 ff_emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize, 9, 9 + field_based,
491 uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
492 ff_emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize, 9, 9 + field_based,
493 uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
494 ptr_cb= uvbuf;
495 ptr_cr= uvbuf + 16;
496 }
497 }
498
499 if(!field_based)
500 qpix_op[0][dxy](dest_y, ptr_y, linesize);
501 else{
502 if(bottom_field){
503 dest_y += s->linesize;
504 dest_cb+= s->uvlinesize;
505 dest_cr+= s->uvlinesize;
506 }
507
508 if(field_select){
509 ptr_y += s->linesize;
510 ptr_cb += s->uvlinesize;
511 ptr_cr += s->uvlinesize;
512 }
513 //damn interlaced mode
514 //FIXME boundary mirroring is not exactly correct here
515 qpix_op[1][dxy](dest_y , ptr_y , linesize);
516 qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize);
517 }
518 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
519 pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
520 pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
521 }
522 }
523
524 /**
525 * h263 chroma 4mv motion compensation.
526 */
527 static inline void chroma_4mv_motion(MpegEncContext *s,
528 uint8_t *dest_cb, uint8_t *dest_cr,
529 uint8_t **ref_picture,
530 op_pixels_func *pix_op,
531 int mx, int my){
532 int dxy, emu=0, src_x, src_y, offset;
533 uint8_t *ptr;
534
535 /* In case of 8X8, we construct a single chroma motion vector
536 with a special rounding */
537 mx= ff_h263_round_chroma(mx);
538 my= ff_h263_round_chroma(my);
539
540 dxy = ((my & 1) << 1) | (mx & 1);
541 mx >>= 1;
542 my >>= 1;
543
544 src_x = s->mb_x * 8 + mx;
545 src_y = s->mb_y * 8 + my;
546 src_x = av_clip(src_x, -8, s->width/2);
547 if (src_x == s->width/2)
548 dxy &= ~1;
549 src_y = av_clip(src_y, -8, s->height/2);
550 if (src_y == s->height/2)
551 dxy &= ~2;
552
553 offset = (src_y * (s->uvlinesize)) + src_x;
554 ptr = ref_picture[1] + offset;
555 if(s->flags&CODEC_FLAG_EMU_EDGE){
556 if( (unsigned)src_x > (s->h_edge_pos>>1) - (dxy &1) - 8
557 || (unsigned)src_y > (s->v_edge_pos>>1) - (dxy>>1) - 8){
558 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
559 ptr= s->edge_emu_buffer;
560 emu=1;
561 }
562 }
563 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
564
565 ptr = ref_picture[2] + offset;
566 if(emu){
567 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
568 ptr= s->edge_emu_buffer;
569 }
570 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
571 }
572
573 static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir){
574 /* fetch pixels for estimated mv 4 macroblocks ahead
575 * optimized for 64byte cache lines */
576 const int shift = s->quarter_sample ? 2 : 1;
577 const int mx= (s->mv[dir][0][0]>>shift) + 16*s->mb_x + 8;
578 const int my= (s->mv[dir][0][1]>>shift) + 16*s->mb_y;
579 int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64;
580 s->dsp.prefetch(pix[0]+off, s->linesize, 4);
581 off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
582 s->dsp.prefetch(pix[1]+off, pix[2]-pix[1], 2);
583 }
584
585 /**
586 * motion compensation of a single macroblock
587 * @param s context
588 * @param dest_y luma destination pointer
589 * @param dest_cb chroma cb/u destination pointer
590 * @param dest_cr chroma cr/v destination pointer
591 * @param dir direction (0->forward, 1->backward)
592 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
593 * @param pic_op halfpel motion compensation function (average or put normally)
594 * @param pic_op qpel motion compensation function (average or put normally)
595 * the motion vectors are taken from s->mv and the MV type from s->mv_type
596 */
597 static inline void MPV_motion(MpegEncContext *s,
598 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
599 int dir, uint8_t **ref_picture,
600 op_pixels_func (*pix_op)[4], qpel_mc_func (*qpix_op)[16])
601 {
602 int dxy, mx, my, src_x, src_y, motion_x, motion_y;
603 int mb_x, mb_y, i;
604 uint8_t *ptr, *dest;
605
606 mb_x = s->mb_x;
607 mb_y = s->mb_y;
608
609 prefetch_motion(s, ref_picture, dir);
610
611 if(s->obmc && s->pict_type != B_TYPE){
612 int16_t mv_cache[4][4][2];
613 const int xy= s->mb_x + s->mb_y*s->mb_stride;
614 const int mot_stride= s->b8_stride;
615 const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
616
617 assert(!s->mb_skipped);
618
619 memcpy(mv_cache[1][1], s->current_picture.motion_val[0][mot_xy ], sizeof(int16_t)*4);
620 memcpy(mv_cache[2][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4);
621 memcpy(mv_cache[3][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4);
622
623 if(mb_y==0 || IS_INTRA(s->current_picture.mb_type[xy-s->mb_stride])){
624 memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
625 }else{
626 memcpy(mv_cache[0][1], s->current_picture.motion_val[0][mot_xy-mot_stride], sizeof(int16_t)*4);
627 }
628
629 if(mb_x==0 || IS_INTRA(s->current_picture.mb_type[xy-1])){
630 *(int32_t*)mv_cache[1][0]= *(int32_t*)mv_cache[1][1];
631 *(int32_t*)mv_cache[2][0]= *(int32_t*)mv_cache[2][1];
632 }else{
633 *(int32_t*)mv_cache[1][0]= *(int32_t*)s->current_picture.motion_val[0][mot_xy-1];
634 *(int32_t*)mv_cache[2][0]= *(int32_t*)s->current_picture.motion_val[0][mot_xy-1+mot_stride];
635 }
636
637 if(mb_x+1>=s->mb_width || IS_INTRA(s->current_picture.mb_type[xy+1])){
638 *(int32_t*)mv_cache[1][3]= *(int32_t*)mv_cache[1][2];
639 *(int32_t*)mv_cache[2][3]= *(int32_t*)mv_cache[2][2];
640 }else{
641 *(int32_t*)mv_cache[1][3]= *(int32_t*)s->current_picture.motion_val[0][mot_xy+2];
642 *(int32_t*)mv_cache[2][3]= *(int32_t*)s->current_picture.motion_val[0][mot_xy+2+mot_stride];
643 }
644
645 mx = 0;
646 my = 0;
647 for(i=0;i<4;i++) {
648 const int x= (i&1)+1;
649 const int y= (i>>1)+1;
650 int16_t mv[5][2]= {
651 {mv_cache[y][x ][0], mv_cache[y][x ][1]},
652 {mv_cache[y-1][x][0], mv_cache[y-1][x][1]},
653 {mv_cache[y][x-1][0], mv_cache[y][x-1][1]},
654 {mv_cache[y][x+1][0], mv_cache[y][x+1][1]},
655 {mv_cache[y+1][x][0], mv_cache[y+1][x][1]}};
656 //FIXME cleanup
657 obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
658 ref_picture[0],
659 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
660 pix_op[1],
661 mv);
662
663 mx += mv[0][0];
664 my += mv[0][1];
665 }
666 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
667 chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
668
669 return;
670 }
671
672 switch(s->mv_type) {
673 case MV_TYPE_16X16:
674 if(s->mcsel){
675 if(s->real_sprite_warping_points==1){
676 gmc1_motion(s, dest_y, dest_cb, dest_cr,
677 ref_picture);
678 }else{
679 gmc_motion(s, dest_y, dest_cb, dest_cr,
680 ref_picture);
681 }
682 }else if(s->quarter_sample){
683 qpel_motion(s, dest_y, dest_cb, dest_cr,
684 0, 0, 0,
685 ref_picture, pix_op, qpix_op,
686 s->mv[dir][0][0], s->mv[dir][0][1], 16);
687 }else if(ENABLE_WMV2 && s->mspel){
688 ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
689 ref_picture, pix_op,
690 s->mv[dir][0][0], s->mv[dir][0][1], 16);
691 }else
692 {
693 mpeg_motion(s, dest_y, dest_cb, dest_cr,
694 0, 0, 0,
695 ref_picture, pix_op,
696 s->mv[dir][0][0], s->mv[dir][0][1], 16);
697 }
698 break;
699 case MV_TYPE_8X8:
700 mx = 0;
701 my = 0;
702 if(s->quarter_sample){
703 for(i=0;i<4;i++) {
704 motion_x = s->mv[dir][i][0];
705 motion_y = s->mv[dir][i][1];
706
707 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
708 src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
709 src_y = mb_y * 16 + (motion_y >> 2) + (i >>1) * 8;
710
711 /* WARNING: do no forget half pels */
712 src_x = av_clip(src_x, -16, s->width);
713 if (src_x == s->width)
714 dxy &= ~3;
715 src_y = av_clip(src_y, -16, s->height);
716 if (src_y == s->height)
717 dxy &= ~12;
718
719 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
720 if(s->flags&CODEC_FLAG_EMU_EDGE){
721 if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 8
722 || (unsigned)src_y > s->v_edge_pos - (motion_y&3) - 8 ){
723 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
724 ptr= s->edge_emu_buffer;
725 }
726 }
727 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
728 qpix_op[1][dxy](dest, ptr, s->linesize);
729
730 mx += s->mv[dir][i][0]/2;
731 my += s->mv[dir][i][1]/2;
732 }
733 }else{
734 for(i=0;i<4;i++) {
735 hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
736 ref_picture[0], 0, 0,
737 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
738 s->width, s->height, s->linesize,
739 s->h_edge_pos, s->v_edge_pos,
740 8, 8, pix_op[1],
741 s->mv[dir][i][0], s->mv[dir][i][1]);
742
743 mx += s->mv[dir][i][0];
744 my += s->mv[dir][i][1];
745 }
746 }
747
748 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
749 chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
750 break;
751 case MV_TYPE_FIELD:
752 if (s->picture_structure == PICT_FRAME) {
753 if(s->quarter_sample){
754 for(i=0; i<2; i++){
755 qpel_motion(s, dest_y, dest_cb, dest_cr,
756 1, i, s->field_select[dir][i],
757 ref_picture, pix_op, qpix_op,
758 s->mv[dir][i][0], s->mv[dir][i][1], 8);
759 }
760 }else{
761 /* top field */
762 mpeg_motion(s, dest_y, dest_cb, dest_cr,
763 1, 0, s->field_select[dir][0],
764 ref_picture, pix_op,
765 s->mv[dir][0][0], s->mv[dir][0][1], 8);
766 /* bottom field */
767 mpeg_motion(s, dest_y, dest_cb, dest_cr,
768 1, 1, s->field_select[dir][1],
769 ref_picture, pix_op,
770 s->mv[dir][1][0], s->mv[dir][1][1], 8);
771 }
772 } else {
773 if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != B_TYPE && !s->first_field){
774 ref_picture= s->current_picture_ptr->data;
775 }
776
777 mpeg_motion(s, dest_y, dest_cb, dest_cr,
778 0, 0, s->field_select[dir][0],
779 ref_picture, pix_op,
780 s->mv[dir][0][0], s->mv[dir][0][1], 16);
781 }
782 break;
783 case MV_TYPE_16X8:
784 for(i=0; i<2; i++){
785 uint8_t ** ref2picture;
786
787 if(s->picture_structure == s->field_select[dir][i] + 1 || s->pict_type == B_TYPE || s->first_field){
788 ref2picture= ref_picture;
789 }else{
790 ref2picture= s->current_picture_ptr->data;
791 }
792
793 mpeg_motion(s, dest_y, dest_cb, dest_cr,
794 0, 0, s->field_select[dir][i],
795 ref2picture, pix_op,
796 s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8);
797
798 dest_y += 16*s->linesize;
799 dest_cb+= (16>>s->chroma_y_shift)*s->uvlinesize;
800 dest_cr+= (16>>s->chroma_y_shift)*s->uvlinesize;
801 }
802 break;
803 case MV_TYPE_DMV:
804 if(s->picture_structure == PICT_FRAME){
805 for(i=0; i<2; i++){
806 int j;
807 for(j=0; j<2; j++){
808 mpeg_motion(s, dest_y, dest_cb, dest_cr,
809 1, j, j^i,
810 ref_picture, pix_op,
811 s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], 8);
812 }
813 pix_op = s->dsp.avg_pixels_tab;
814 }
815 }else{
816 for(i=0; i<2; i++){
817 mpeg_motion(s, dest_y, dest_cb, dest_cr,
818 0, 0, s->picture_structure != i+1,
819 ref_picture, pix_op,
820 s->mv[dir][2*i][0],s->mv[dir][2*i][1],16);
821
822 // after put we make avg of the same block
823 pix_op=s->dsp.avg_pixels_tab;
824
825 //opposite parity is always in the same frame if this is second field
826 if(!s->first_field){
827 ref_picture = s->current_picture_ptr->data;
828 }
829 }
830 }
831 break;
832 default: assert(0);
833 }
834 }
835
836 #endif /* FFMPEG_MPEGVIDEO_COMMON_H */