Correct ASF duration.
[libav.git] / libavcodec / mpegvideo_common.h
CommitLineData
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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 *
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6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
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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
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23 */
24
25/**
26 * @file mpegvideo_common.h
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
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30#ifndef FFMPEG_MPEGVIDEO_COMMON_H
31#define FFMPEG_MPEGVIDEO_COMMON_H
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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
41int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
42int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
43void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
44void 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 */
50int 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 */
56void MPV_common_defaults(MpegEncContext *s);
57
58static 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
cde9e780 107 if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
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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
144static 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
cde9e780 176 if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
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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
200static 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 */
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241static av_always_inline
242void mpeg_motion(MpegEncContext *s,
243 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
244 int field_based, int bottom_field, int field_select,
245 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
246 int motion_x, int motion_y, int h)
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247{
248 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
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249 int dxy, uvdxy, mx, my, src_x, src_y,
250 uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize;
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251
252#if 0
253if(s->quarter_sample)
254{
255 motion_x>>=1;
256 motion_y>>=1;
257}
258#endif
259
260 v_edge_pos = s->v_edge_pos >> field_based;
261 linesize = s->current_picture.linesize[0] << field_based;
262 uvlinesize = s->current_picture.linesize[1] << field_based;
263
264 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
265 src_x = s->mb_x* 16 + (motion_x >> 1);
266 src_y =(s->mb_y<<(4-field_based)) + (motion_y >> 1);
267
268 if (s->out_format == FMT_H263) {
269 if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
270 mx = (motion_x>>1)|(motion_x&1);
271 my = motion_y >>1;
272 uvdxy = ((my & 1) << 1) | (mx & 1);
273 uvsrc_x = s->mb_x* 8 + (mx >> 1);
274 uvsrc_y = (s->mb_y<<(3-field_based)) + (my >> 1);
275 }else{
276 uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
277 uvsrc_x = src_x>>1;
278 uvsrc_y = src_y>>1;
279 }
280 }else if(s->out_format == FMT_H261){//even chroma mv's are full pel in H261
281 mx = motion_x / 4;
282 my = motion_y / 4;
283 uvdxy = 0;
284 uvsrc_x = s->mb_x*8 + mx;
285 uvsrc_y = s->mb_y*8 + my;
286 } else {
287 if(s->chroma_y_shift){
288 mx = motion_x / 2;
289 my = motion_y / 2;
290 uvdxy = ((my & 1) << 1) | (mx & 1);
291 uvsrc_x = s->mb_x* 8 + (mx >> 1);
292 uvsrc_y = (s->mb_y<<(3-field_based)) + (my >> 1);
293 } else {
294 if(s->chroma_x_shift){
295 //Chroma422
296 mx = motion_x / 2;
297 uvdxy = ((motion_y & 1) << 1) | (mx & 1);
298 uvsrc_x = s->mb_x* 8 + (mx >> 1);
299 uvsrc_y = src_y;
300 } else {
301 //Chroma444
302 uvdxy = dxy;
303 uvsrc_x = src_x;
304 uvsrc_y = src_y;
305 }
306 }
307 }
308
309 ptr_y = ref_picture[0] + src_y * linesize + src_x;
310 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
311 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
312
313 if( (unsigned)src_x > s->h_edge_pos - (motion_x&1) - 16
314 || (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
315 if(s->codec_id == CODEC_ID_MPEG2VIDEO ||
316 s->codec_id == CODEC_ID_MPEG1VIDEO){
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317 av_log(s->avctx,AV_LOG_DEBUG,
318 "MPEG motion vector out of boundary\n");
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319 return ;
320 }
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321 ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
322 17, 17+field_based,
323 src_x, src_y<<field_based,
324 s->h_edge_pos, s->v_edge_pos);
3ada94ba 325 ptr_y = s->edge_emu_buffer;
cde9e780 326 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3ada94ba 327 uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
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328 ff_emulated_edge_mc(uvbuf ,
329 ptr_cb, s->uvlinesize,
330 9, 9+field_based,
331 uvsrc_x, uvsrc_y<<field_based,
332 s->h_edge_pos>>1, s->v_edge_pos>>1);
333 ff_emulated_edge_mc(uvbuf+16,
334 ptr_cr, s->uvlinesize,
335 9, 9+field_based,
336 uvsrc_x, uvsrc_y<<field_based,
337 s->h_edge_pos>>1, s->v_edge_pos>>1);
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338 ptr_cb= uvbuf;
339 ptr_cr= uvbuf+16;
340 }
341 }
342
343 if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data
344 dest_y += s->linesize;
345 dest_cb+= s->uvlinesize;
346 dest_cr+= s->uvlinesize;
347 }
348
349 if(field_select){
350 ptr_y += s->linesize;
351 ptr_cb+= s->uvlinesize;
352 ptr_cr+= s->uvlinesize;
353 }
354
355 pix_op[0][dxy](dest_y, ptr_y, linesize, h);
356
cde9e780 357 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
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358 pix_op[s->chroma_x_shift][uvdxy]
359 (dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
360 pix_op[s->chroma_x_shift][uvdxy]
361 (dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
3ada94ba 362 }
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363 if((ENABLE_H261_ENCODER || ENABLE_H261_DECODER) &&
364 s->out_format == FMT_H261){
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365 ff_h261_loop_filter(s);
366 }
367}
368
369//FIXME move to dsputil, avg variant, 16x16 version
370static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
371 int x;
372 uint8_t * const top = src[1];
373 uint8_t * const left = src[2];
374 uint8_t * const mid = src[0];
375 uint8_t * const right = src[3];
376 uint8_t * const bottom= src[4];
377#define OBMC_FILTER(x, t, l, m, r, b)\
378 dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
379#define OBMC_FILTER4(x, t, l, m, r, b)\
380 OBMC_FILTER(x , t, l, m, r, b);\
381 OBMC_FILTER(x+1 , t, l, m, r, b);\
382 OBMC_FILTER(x +stride, t, l, m, r, b);\
383 OBMC_FILTER(x+1+stride, t, l, m, r, b);
384
385 x=0;
386 OBMC_FILTER (x , 2, 2, 4, 0, 0);
387 OBMC_FILTER (x+1, 2, 1, 5, 0, 0);
388 OBMC_FILTER4(x+2, 2, 1, 5, 0, 0);
389 OBMC_FILTER4(x+4, 2, 0, 5, 1, 0);
390 OBMC_FILTER (x+6, 2, 0, 5, 1, 0);
391 OBMC_FILTER (x+7, 2, 0, 4, 2, 0);
392 x+= stride;
393 OBMC_FILTER (x , 1, 2, 5, 0, 0);
394 OBMC_FILTER (x+1, 1, 2, 5, 0, 0);
395 OBMC_FILTER (x+6, 1, 0, 5, 2, 0);
396 OBMC_FILTER (x+7, 1, 0, 5, 2, 0);
397 x+= stride;
398 OBMC_FILTER4(x , 1, 2, 5, 0, 0);
399 OBMC_FILTER4(x+2, 1, 1, 6, 0, 0);
400 OBMC_FILTER4(x+4, 1, 0, 6, 1, 0);
401 OBMC_FILTER4(x+6, 1, 0, 5, 2, 0);
402 x+= 2*stride;
403 OBMC_FILTER4(x , 0, 2, 5, 0, 1);
404 OBMC_FILTER4(x+2, 0, 1, 6, 0, 1);
405 OBMC_FILTER4(x+4, 0, 0, 6, 1, 1);
406 OBMC_FILTER4(x+6, 0, 0, 5, 2, 1);
407 x+= 2*stride;
408 OBMC_FILTER (x , 0, 2, 5, 0, 1);
409 OBMC_FILTER (x+1, 0, 2, 5, 0, 1);
410 OBMC_FILTER4(x+2, 0, 1, 5, 0, 2);
411 OBMC_FILTER4(x+4, 0, 0, 5, 1, 2);
412 OBMC_FILTER (x+6, 0, 0, 5, 2, 1);
413 OBMC_FILTER (x+7, 0, 0, 5, 2, 1);
414 x+= stride;
415 OBMC_FILTER (x , 0, 2, 4, 0, 2);
416 OBMC_FILTER (x+1, 0, 1, 5, 0, 2);
417 OBMC_FILTER (x+6, 0, 0, 5, 1, 2);
418 OBMC_FILTER (x+7, 0, 0, 4, 2, 2);
419}
420
421/* obmc for 1 8x8 luma block */
422static inline void obmc_motion(MpegEncContext *s,
423 uint8_t *dest, uint8_t *src,
424 int src_x, int src_y,
425 op_pixels_func *pix_op,
426 int16_t mv[5][2]/* mid top left right bottom*/)
427#define MID 0
428{
429 int i;
430 uint8_t *ptr[5];
431
432 assert(s->quarter_sample==0);
433
434 for(i=0; i<5; i++){
435 if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
436 ptr[i]= ptr[MID];
437 }else{
438 ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
439 hpel_motion(s, ptr[i], src, 0, 0,
440 src_x, src_y,
441 s->width, s->height, s->linesize,
442 s->h_edge_pos, s->v_edge_pos,
443 8, 8, pix_op,
444 mv[i][0], mv[i][1]);
445 }
446 }
447
448 put_obmc(dest, ptr, s->linesize);
449}
450
451static inline void qpel_motion(MpegEncContext *s,
452 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
453 int field_based, int bottom_field, int field_select,
454 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
455 qpel_mc_func (*qpix_op)[16],
456 int motion_x, int motion_y, int h)
457{
458 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
459 int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
460
461 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
462 src_x = s->mb_x * 16 + (motion_x >> 2);
463 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
464
465 v_edge_pos = s->v_edge_pos >> field_based;
466 linesize = s->linesize << field_based;
467 uvlinesize = s->uvlinesize << field_based;
468
469 if(field_based){
470 mx= motion_x/2;
471 my= motion_y>>1;
472 }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){
473 static const int rtab[8]= {0,0,1,1,0,0,0,1};
474 mx= (motion_x>>1) + rtab[motion_x&7];
475 my= (motion_y>>1) + rtab[motion_y&7];
476 }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
477 mx= (motion_x>>1)|(motion_x&1);
478 my= (motion_y>>1)|(motion_y&1);
479 }else{
480 mx= motion_x/2;
481 my= motion_y/2;
482 }
483 mx= (mx>>1)|(mx&1);
484 my= (my>>1)|(my&1);
485
486 uvdxy= (mx&1) | ((my&1)<<1);
487 mx>>=1;
488 my>>=1;
489
490 uvsrc_x = s->mb_x * 8 + mx;
491 uvsrc_y = s->mb_y * (8 >> field_based) + my;
492
493 ptr_y = ref_picture[0] + src_y * linesize + src_x;
494 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
495 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
496
497 if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 16
498 || (unsigned)src_y > v_edge_pos - (motion_y&3) - h ){
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499 ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
500 17, 17+field_based, src_x, src_y<<field_based,
501 s->h_edge_pos, s->v_edge_pos);
3ada94ba 502 ptr_y= s->edge_emu_buffer;
cde9e780 503 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3ada94ba 504 uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
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KC
505 ff_emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize,
506 9, 9 + field_based,
507 uvsrc_x, uvsrc_y<<field_based,
508 s->h_edge_pos>>1, s->v_edge_pos>>1);
509 ff_emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize,
510 9, 9 + field_based,
511 uvsrc_x, uvsrc_y<<field_based,
512 s->h_edge_pos>>1, s->v_edge_pos>>1);
3ada94ba
BF
513 ptr_cb= uvbuf;
514 ptr_cr= uvbuf + 16;
515 }
516 }
517
518 if(!field_based)
519 qpix_op[0][dxy](dest_y, ptr_y, linesize);
520 else{
521 if(bottom_field){
522 dest_y += s->linesize;
523 dest_cb+= s->uvlinesize;
524 dest_cr+= s->uvlinesize;
525 }
526
527 if(field_select){
528 ptr_y += s->linesize;
529 ptr_cb += s->uvlinesize;
530 ptr_cr += s->uvlinesize;
531 }
532 //damn interlaced mode
533 //FIXME boundary mirroring is not exactly correct here
534 qpix_op[1][dxy](dest_y , ptr_y , linesize);
535 qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize);
536 }
cde9e780 537 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3ada94ba
BF
538 pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
539 pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
540 }
541}
542
543/**
b9ca2042 544 * h263 chroma 4mv motion compensation.
3ada94ba
BF
545 */
546static inline void chroma_4mv_motion(MpegEncContext *s,
547 uint8_t *dest_cb, uint8_t *dest_cr,
548 uint8_t **ref_picture,
549 op_pixels_func *pix_op,
550 int mx, int my){
551 int dxy, emu=0, src_x, src_y, offset;
552 uint8_t *ptr;
553
554 /* In case of 8X8, we construct a single chroma motion vector
555 with a special rounding */
556 mx= ff_h263_round_chroma(mx);
557 my= ff_h263_round_chroma(my);
558
559 dxy = ((my & 1) << 1) | (mx & 1);
560 mx >>= 1;
561 my >>= 1;
562
563 src_x = s->mb_x * 8 + mx;
564 src_y = s->mb_y * 8 + my;
565 src_x = av_clip(src_x, -8, s->width/2);
566 if (src_x == s->width/2)
567 dxy &= ~1;
568 src_y = av_clip(src_y, -8, s->height/2);
569 if (src_y == s->height/2)
570 dxy &= ~2;
571
572 offset = (src_y * (s->uvlinesize)) + src_x;
573 ptr = ref_picture[1] + offset;
574 if(s->flags&CODEC_FLAG_EMU_EDGE){
575 if( (unsigned)src_x > (s->h_edge_pos>>1) - (dxy &1) - 8
576 || (unsigned)src_y > (s->v_edge_pos>>1) - (dxy>>1) - 8){
cb9501f4
KC
577 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
578 9, 9, src_x, src_y,
579 s->h_edge_pos>>1, s->v_edge_pos>>1);
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BF
580 ptr= s->edge_emu_buffer;
581 emu=1;
582 }
583 }
584 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
585
586 ptr = ref_picture[2] + offset;
587 if(emu){
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588 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
589 9, 9, src_x, src_y,
590 s->h_edge_pos>>1, s->v_edge_pos>>1);
3ada94ba
BF
591 ptr= s->edge_emu_buffer;
592 }
593 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
594}
595
596static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir){
597 /* fetch pixels for estimated mv 4 macroblocks ahead
598 * optimized for 64byte cache lines */
599 const int shift = s->quarter_sample ? 2 : 1;
600 const int mx= (s->mv[dir][0][0]>>shift) + 16*s->mb_x + 8;
601 const int my= (s->mv[dir][0][1]>>shift) + 16*s->mb_y;
602 int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64;
603 s->dsp.prefetch(pix[0]+off, s->linesize, 4);
604 off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
605 s->dsp.prefetch(pix[1]+off, pix[2]-pix[1], 2);
606}
607
608/**
609 * motion compensation of a single macroblock
610 * @param s context
611 * @param dest_y luma destination pointer
612 * @param dest_cb chroma cb/u destination pointer
613 * @param dest_cr chroma cr/v destination pointer
614 * @param dir direction (0->forward, 1->backward)
615 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
616 * @param pic_op halfpel motion compensation function (average or put normally)
617 * @param pic_op qpel motion compensation function (average or put normally)
618 * the motion vectors are taken from s->mv and the MV type from s->mv_type
619 */
620static inline void MPV_motion(MpegEncContext *s,
cb9501f4
KC
621 uint8_t *dest_y, uint8_t *dest_cb,
622 uint8_t *dest_cr, int dir,
623 uint8_t **ref_picture,
624 op_pixels_func (*pix_op)[4],
625 qpel_mc_func (*qpix_op)[16])
3ada94ba
BF
626{
627 int dxy, mx, my, src_x, src_y, motion_x, motion_y;
628 int mb_x, mb_y, i;
629 uint8_t *ptr, *dest;
630
631 mb_x = s->mb_x;
632 mb_y = s->mb_y;
633
634 prefetch_motion(s, ref_picture, dir);
635
9701840b 636 if(s->obmc && s->pict_type != FF_B_TYPE){
3ada94ba
BF
637 int16_t mv_cache[4][4][2];
638 const int xy= s->mb_x + s->mb_y*s->mb_stride;
639 const int mot_stride= s->b8_stride;
640 const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
641
642 assert(!s->mb_skipped);
643
644 memcpy(mv_cache[1][1], s->current_picture.motion_val[0][mot_xy ], sizeof(int16_t)*4);
645 memcpy(mv_cache[2][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4);
646 memcpy(mv_cache[3][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4);
647
648 if(mb_y==0 || IS_INTRA(s->current_picture.mb_type[xy-s->mb_stride])){
649 memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
650 }else{
651 memcpy(mv_cache[0][1], s->current_picture.motion_val[0][mot_xy-mot_stride], sizeof(int16_t)*4);
652 }
653
654 if(mb_x==0 || IS_INTRA(s->current_picture.mb_type[xy-1])){
655 *(int32_t*)mv_cache[1][0]= *(int32_t*)mv_cache[1][1];
656 *(int32_t*)mv_cache[2][0]= *(int32_t*)mv_cache[2][1];
657 }else{
658 *(int32_t*)mv_cache[1][0]= *(int32_t*)s->current_picture.motion_val[0][mot_xy-1];
659 *(int32_t*)mv_cache[2][0]= *(int32_t*)s->current_picture.motion_val[0][mot_xy-1+mot_stride];
660 }
661
662 if(mb_x+1>=s->mb_width || IS_INTRA(s->current_picture.mb_type[xy+1])){
663 *(int32_t*)mv_cache[1][3]= *(int32_t*)mv_cache[1][2];
664 *(int32_t*)mv_cache[2][3]= *(int32_t*)mv_cache[2][2];
665 }else{
666 *(int32_t*)mv_cache[1][3]= *(int32_t*)s->current_picture.motion_val[0][mot_xy+2];
667 *(int32_t*)mv_cache[2][3]= *(int32_t*)s->current_picture.motion_val[0][mot_xy+2+mot_stride];
668 }
669
670 mx = 0;
671 my = 0;
672 for(i=0;i<4;i++) {
673 const int x= (i&1)+1;
674 const int y= (i>>1)+1;
675 int16_t mv[5][2]= {
676 {mv_cache[y][x ][0], mv_cache[y][x ][1]},
677 {mv_cache[y-1][x][0], mv_cache[y-1][x][1]},
678 {mv_cache[y][x-1][0], mv_cache[y][x-1][1]},
679 {mv_cache[y][x+1][0], mv_cache[y][x+1][1]},
680 {mv_cache[y+1][x][0], mv_cache[y+1][x][1]}};
681 //FIXME cleanup
682 obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
683 ref_picture[0],
684 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
685 pix_op[1],
686 mv);
687
688 mx += mv[0][0];
689 my += mv[0][1];
690 }
cde9e780 691 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
3ada94ba
BF
692 chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
693
694 return;
695 }
696
697 switch(s->mv_type) {
698 case MV_TYPE_16X16:
699 if(s->mcsel){
700 if(s->real_sprite_warping_points==1){
701 gmc1_motion(s, dest_y, dest_cb, dest_cr,
702 ref_picture);
703 }else{
704 gmc_motion(s, dest_y, dest_cb, dest_cr,
705 ref_picture);
706 }
707 }else if(s->quarter_sample){
708 qpel_motion(s, dest_y, dest_cb, dest_cr,
709 0, 0, 0,
710 ref_picture, pix_op, qpix_op,
711 s->mv[dir][0][0], s->mv[dir][0][1], 16);
712 }else if(ENABLE_WMV2 && s->mspel){
713 ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
714 ref_picture, pix_op,
715 s->mv[dir][0][0], s->mv[dir][0][1], 16);
716 }else
717 {
718 mpeg_motion(s, dest_y, dest_cb, dest_cr,
719 0, 0, 0,
720 ref_picture, pix_op,
721 s->mv[dir][0][0], s->mv[dir][0][1], 16);
722 }
723 break;
724 case MV_TYPE_8X8:
725 mx = 0;
726 my = 0;
727 if(s->quarter_sample){
728 for(i=0;i<4;i++) {
729 motion_x = s->mv[dir][i][0];
730 motion_y = s->mv[dir][i][1];
731
732 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
733 src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
734 src_y = mb_y * 16 + (motion_y >> 2) + (i >>1) * 8;
735
736 /* WARNING: do no forget half pels */
737 src_x = av_clip(src_x, -16, s->width);
738 if (src_x == s->width)
739 dxy &= ~3;
740 src_y = av_clip(src_y, -16, s->height);
741 if (src_y == s->height)
742 dxy &= ~12;
743
744 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
745 if(s->flags&CODEC_FLAG_EMU_EDGE){
746 if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 8
747 || (unsigned)src_y > s->v_edge_pos - (motion_y&3) - 8 ){
cb9501f4
KC
748 ff_emulated_edge_mc(s->edge_emu_buffer, ptr,
749 s->linesize, 9, 9,
750 src_x, src_y,
751 s->h_edge_pos, s->v_edge_pos);
3ada94ba
BF
752 ptr= s->edge_emu_buffer;
753 }
754 }
755 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
756 qpix_op[1][dxy](dest, ptr, s->linesize);
757
758 mx += s->mv[dir][i][0]/2;
759 my += s->mv[dir][i][1]/2;
760 }
761 }else{
762 for(i=0;i<4;i++) {
763 hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
764 ref_picture[0], 0, 0,
765 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
766 s->width, s->height, s->linesize,
767 s->h_edge_pos, s->v_edge_pos,
768 8, 8, pix_op[1],
769 s->mv[dir][i][0], s->mv[dir][i][1]);
770
771 mx += s->mv[dir][i][0];
772 my += s->mv[dir][i][1];
773 }
774 }
775
cde9e780 776 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
3ada94ba
BF
777 chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
778 break;
779 case MV_TYPE_FIELD:
780 if (s->picture_structure == PICT_FRAME) {
781 if(s->quarter_sample){
782 for(i=0; i<2; i++){
783 qpel_motion(s, dest_y, dest_cb, dest_cr,
784 1, i, s->field_select[dir][i],
785 ref_picture, pix_op, qpix_op,
786 s->mv[dir][i][0], s->mv[dir][i][1], 8);
787 }
788 }else{
789 /* top field */
790 mpeg_motion(s, dest_y, dest_cb, dest_cr,
791 1, 0, s->field_select[dir][0],
792 ref_picture, pix_op,
793 s->mv[dir][0][0], s->mv[dir][0][1], 8);
794 /* bottom field */
795 mpeg_motion(s, dest_y, dest_cb, dest_cr,
796 1, 1, s->field_select[dir][1],
797 ref_picture, pix_op,
798 s->mv[dir][1][0], s->mv[dir][1][1], 8);
799 }
800 } else {
9701840b 801 if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != FF_B_TYPE && !s->first_field){
3ada94ba
BF
802 ref_picture= s->current_picture_ptr->data;
803 }
804
805 mpeg_motion(s, dest_y, dest_cb, dest_cr,
806 0, 0, s->field_select[dir][0],
807 ref_picture, pix_op,
808 s->mv[dir][0][0], s->mv[dir][0][1], 16);
809 }
810 break;
811 case MV_TYPE_16X8:
812 for(i=0; i<2; i++){
813 uint8_t ** ref2picture;
814
cb9501f4
KC
815 if(s->picture_structure == s->field_select[dir][i] + 1
816 || s->pict_type == FF_B_TYPE || s->first_field){
3ada94ba
BF
817 ref2picture= ref_picture;
818 }else{
819 ref2picture= s->current_picture_ptr->data;
820 }
821
822 mpeg_motion(s, dest_y, dest_cb, dest_cr,
823 0, 0, s->field_select[dir][i],
824 ref2picture, pix_op,
825 s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8);
826
827 dest_y += 16*s->linesize;
828 dest_cb+= (16>>s->chroma_y_shift)*s->uvlinesize;
829 dest_cr+= (16>>s->chroma_y_shift)*s->uvlinesize;
830 }
831 break;
832 case MV_TYPE_DMV:
833 if(s->picture_structure == PICT_FRAME){
834 for(i=0; i<2; i++){
835 int j;
836 for(j=0; j<2; j++){
837 mpeg_motion(s, dest_y, dest_cb, dest_cr,
838 1, j, j^i,
839 ref_picture, pix_op,
840 s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], 8);
841 }
842 pix_op = s->dsp.avg_pixels_tab;
843 }
844 }else{
845 for(i=0; i<2; i++){
846 mpeg_motion(s, dest_y, dest_cb, dest_cr,
847 0, 0, s->picture_structure != i+1,
848 ref_picture, pix_op,
849 s->mv[dir][2*i][0],s->mv[dir][2*i][1],16);
850
851 // after put we make avg of the same block
852 pix_op=s->dsp.avg_pixels_tab;
853
854 //opposite parity is always in the same frame if this is second field
855 if(!s->first_field){
856 ref_picture = s->current_picture_ptr->data;
857 }
858 }
859 }
860 break;
861 default: assert(0);
862 }
863}
864
5b21bdab 865#endif /* FFMPEG_MPEGVIDEO_COMMON_H */