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>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
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.
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.
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
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #ifndef AVCODEC_MPEGVIDEO_COMMON_H
31 #define AVCODEC_MPEGVIDEO_COMMON_H
36 #include "mpegvideo.h"
42 int ff_dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
45 * Set the given MpegEncContext to common defaults (same for encoding and decoding).
46 * The changed fields will not depend upon the prior state of the MpegEncContext.
48 void ff_MPV_common_defaults(MpegEncContext *s);
50 static inline void gmc1_motion(MpegEncContext *s,
51 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
52 uint8_t **ref_picture)
55 int offset, src_x, src_y, linesize, uvlinesize;
56 int motion_x, motion_y;
59 motion_x= s->sprite_offset[0][0];
60 motion_y= s->sprite_offset[0][1];
61 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
62 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
63 motion_x<<=(3-s->sprite_warping_accuracy);
64 motion_y<<=(3-s->sprite_warping_accuracy);
65 src_x = av_clip(src_x, -16, s->width);
66 if (src_x == s->width)
68 src_y = av_clip(src_y, -16, s->height);
69 if (src_y == s->height)
72 linesize = s->linesize;
73 uvlinesize = s->uvlinesize;
75 ptr = ref_picture[0] + (src_y * linesize) + src_x;
77 if(s->flags&CODEC_FLAG_EMU_EDGE){
78 if( (unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0)
79 || (unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)){
80 s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
81 ptr= s->edge_emu_buffer;
85 if((motion_x|motion_y)&7){
86 s->dsp.gmc1(dest_y , ptr , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
87 s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
91 dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2);
93 s->dsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
95 s->dsp.put_pixels_tab [0][dxy](dest_y, ptr, linesize, 16);
99 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
101 motion_x= s->sprite_offset[1][0];
102 motion_y= s->sprite_offset[1][1];
103 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
104 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
105 motion_x<<=(3-s->sprite_warping_accuracy);
106 motion_y<<=(3-s->sprite_warping_accuracy);
107 src_x = av_clip(src_x, -8, s->width>>1);
108 if (src_x == s->width>>1)
110 src_y = av_clip(src_y, -8, s->height>>1);
111 if (src_y == s->height>>1)
114 offset = (src_y * uvlinesize) + src_x;
115 ptr = ref_picture[1] + offset;
116 if(s->flags&CODEC_FLAG_EMU_EDGE){
117 if( (unsigned)src_x >= FFMAX((s->h_edge_pos>>1) - 9, 0)
118 || (unsigned)src_y >= FFMAX((s->v_edge_pos>>1) - 9, 0)){
119 s->dsp.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);
120 ptr= s->edge_emu_buffer;
124 s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
126 ptr = ref_picture[2] + offset;
128 s->dsp.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);
129 ptr= s->edge_emu_buffer;
131 s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
136 static inline void gmc_motion(MpegEncContext *s,
137 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
138 uint8_t **ref_picture)
141 int linesize, uvlinesize;
142 const int a= s->sprite_warping_accuracy;
145 linesize = s->linesize;
146 uvlinesize = s->uvlinesize;
148 ptr = ref_picture[0];
150 ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16;
151 oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16;
153 s->dsp.gmc(dest_y, ptr, linesize, 16,
156 s->sprite_delta[0][0], s->sprite_delta[0][1],
157 s->sprite_delta[1][0], s->sprite_delta[1][1],
158 a+1, (1<<(2*a+1)) - s->no_rounding,
159 s->h_edge_pos, s->v_edge_pos);
160 s->dsp.gmc(dest_y+8, ptr, linesize, 16,
161 ox + s->sprite_delta[0][0]*8,
162 oy + s->sprite_delta[1][0]*8,
163 s->sprite_delta[0][0], s->sprite_delta[0][1],
164 s->sprite_delta[1][0], s->sprite_delta[1][1],
165 a+1, (1<<(2*a+1)) - s->no_rounding,
166 s->h_edge_pos, s->v_edge_pos);
168 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
170 ox= s->sprite_offset[1][0] + s->sprite_delta[0][0]*s->mb_x*8 + s->sprite_delta[0][1]*s->mb_y*8;
171 oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8;
173 ptr = ref_picture[1];
174 s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
177 s->sprite_delta[0][0], s->sprite_delta[0][1],
178 s->sprite_delta[1][0], s->sprite_delta[1][1],
179 a+1, (1<<(2*a+1)) - s->no_rounding,
180 s->h_edge_pos>>1, s->v_edge_pos>>1);
182 ptr = ref_picture[2];
183 s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
186 s->sprite_delta[0][0], s->sprite_delta[0][1],
187 s->sprite_delta[1][0], s->sprite_delta[1][1],
188 a+1, (1<<(2*a+1)) - s->no_rounding,
189 s->h_edge_pos>>1, s->v_edge_pos>>1);
192 static inline int hpel_motion(MpegEncContext *s,
193 uint8_t *dest, uint8_t *src,
194 int field_based, int field_select,
195 int src_x, int src_y,
196 int width, int height, int stride,
197 int h_edge_pos, int v_edge_pos,
198 int w, int h, op_pixels_func *pix_op,
199 int motion_x, int motion_y)
204 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
205 src_x += motion_x >> 1;
206 src_y += motion_y >> 1;
208 /* WARNING: do no forget half pels */
209 src_x = av_clip(src_x, -16, width); //FIXME unneeded for emu?
212 src_y = av_clip(src_y, -16, height);
215 src += src_y * stride + src_x;
217 if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
218 if( (unsigned)src_x > FFMAX(h_edge_pos - (motion_x&1) - w, 0)
219 || (unsigned)src_y > FFMAX(v_edge_pos - (motion_y&1) - h, 0)){
220 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based,
221 src_x, src_y<<field_based, h_edge_pos, s->v_edge_pos);
222 src= s->edge_emu_buffer;
228 pix_op[dxy](dest, src, stride, h);
232 static av_always_inline
233 void mpeg_motion_internal(MpegEncContext *s,
234 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
235 int field_based, int bottom_field, int field_select,
236 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
237 int motion_x, int motion_y, int h, int is_mpeg12, int mb_y)
239 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
240 int dxy, uvdxy, mx, my, src_x, src_y,
241 uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize;
244 if(s->quarter_sample)
251 v_edge_pos = s->v_edge_pos >> field_based;
252 linesize = s->current_picture.f.linesize[0] << field_based;
253 uvlinesize = s->current_picture.f.linesize[1] << field_based;
255 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
256 src_x = s->mb_x* 16 + (motion_x >> 1);
257 src_y =( mb_y<<(4-field_based)) + (motion_y >> 1);
259 if (!is_mpeg12 && s->out_format == FMT_H263) {
260 if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
261 mx = (motion_x>>1)|(motion_x&1);
263 uvdxy = ((my & 1) << 1) | (mx & 1);
264 uvsrc_x = s->mb_x* 8 + (mx >> 1);
265 uvsrc_y =( mb_y<<(3-field_based))+ (my >> 1);
267 uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
271 }else if(!is_mpeg12 && s->out_format == FMT_H261){//even chroma mv's are full pel in H261
275 uvsrc_x = s->mb_x*8 + mx;
276 uvsrc_y = mb_y*8 + my;
278 if(s->chroma_y_shift){
281 uvdxy = ((my & 1) << 1) | (mx & 1);
282 uvsrc_x = s->mb_x* 8 + (mx >> 1);
283 uvsrc_y =( mb_y<<(3-field_based))+ (my >> 1);
285 if(s->chroma_x_shift){
288 uvdxy = ((motion_y & 1) << 1) | (mx & 1);
289 uvsrc_x = s->mb_x* 8 + (mx >> 1);
300 ptr_y = ref_picture[0] + src_y * linesize + src_x;
301 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
302 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
304 if( (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&1) - 16, 0)
305 || (unsigned)src_y > FFMAX( v_edge_pos - (motion_y&1) - h , 0)){
306 if(is_mpeg12 || s->codec_id == CODEC_ID_MPEG2VIDEO ||
307 s->codec_id == CODEC_ID_MPEG1VIDEO){
308 av_log(s->avctx,AV_LOG_DEBUG,
309 "MPEG motion vector out of boundary (%d %d)\n", src_x, src_y);
312 s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
314 src_x, src_y<<field_based,
315 s->h_edge_pos, s->v_edge_pos);
316 ptr_y = s->edge_emu_buffer;
317 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
318 uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
319 s->dsp.emulated_edge_mc(uvbuf ,
320 ptr_cb, s->uvlinesize,
322 uvsrc_x, uvsrc_y<<field_based,
323 s->h_edge_pos>>1, s->v_edge_pos>>1);
324 s->dsp.emulated_edge_mc(uvbuf+16,
325 ptr_cr, s->uvlinesize,
327 uvsrc_x, uvsrc_y<<field_based,
328 s->h_edge_pos>>1, s->v_edge_pos>>1);
334 if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data
335 dest_y += s->linesize;
336 dest_cb+= s->uvlinesize;
337 dest_cr+= s->uvlinesize;
341 ptr_y += s->linesize;
342 ptr_cb+= s->uvlinesize;
343 ptr_cr+= s->uvlinesize;
346 pix_op[0][dxy](dest_y, ptr_y, linesize, h);
348 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
349 pix_op[s->chroma_x_shift][uvdxy]
350 (dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
351 pix_op[s->chroma_x_shift][uvdxy]
352 (dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
354 if(!is_mpeg12 && (CONFIG_H261_ENCODER || CONFIG_H261_DECODER) &&
355 s->out_format == FMT_H261){
356 ff_h261_loop_filter(s);
359 /* apply one mpeg motion vector to the three components */
360 static av_always_inline
361 void mpeg_motion(MpegEncContext *s,
362 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
363 int field_based, int bottom_field, int field_select,
364 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
365 int motion_x, int motion_y, int h, int mb_y)
368 if(s->out_format == FMT_MPEG1)
369 mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, field_based,
370 bottom_field, field_select, ref_picture, pix_op,
371 motion_x, motion_y, h, 1, mb_y);
374 mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, field_based,
375 bottom_field, field_select, ref_picture, pix_op,
376 motion_x, motion_y, h, 0, mb_y);
379 //FIXME move to dsputil, avg variant, 16x16 version
380 static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
382 uint8_t * const top = src[1];
383 uint8_t * const left = src[2];
384 uint8_t * const mid = src[0];
385 uint8_t * const right = src[3];
386 uint8_t * const bottom= src[4];
387 #define OBMC_FILTER(x, t, l, m, r, b)\
388 dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
389 #define OBMC_FILTER4(x, t, l, m, r, b)\
390 OBMC_FILTER(x , t, l, m, r, b);\
391 OBMC_FILTER(x+1 , t, l, m, r, b);\
392 OBMC_FILTER(x +stride, t, l, m, r, b);\
393 OBMC_FILTER(x+1+stride, t, l, m, r, b);
396 OBMC_FILTER (x , 2, 2, 4, 0, 0);
397 OBMC_FILTER (x+1, 2, 1, 5, 0, 0);
398 OBMC_FILTER4(x+2, 2, 1, 5, 0, 0);
399 OBMC_FILTER4(x+4, 2, 0, 5, 1, 0);
400 OBMC_FILTER (x+6, 2, 0, 5, 1, 0);
401 OBMC_FILTER (x+7, 2, 0, 4, 2, 0);
403 OBMC_FILTER (x , 1, 2, 5, 0, 0);
404 OBMC_FILTER (x+1, 1, 2, 5, 0, 0);
405 OBMC_FILTER (x+6, 1, 0, 5, 2, 0);
406 OBMC_FILTER (x+7, 1, 0, 5, 2, 0);
408 OBMC_FILTER4(x , 1, 2, 5, 0, 0);
409 OBMC_FILTER4(x+2, 1, 1, 6, 0, 0);
410 OBMC_FILTER4(x+4, 1, 0, 6, 1, 0);
411 OBMC_FILTER4(x+6, 1, 0, 5, 2, 0);
413 OBMC_FILTER4(x , 0, 2, 5, 0, 1);
414 OBMC_FILTER4(x+2, 0, 1, 6, 0, 1);
415 OBMC_FILTER4(x+4, 0, 0, 6, 1, 1);
416 OBMC_FILTER4(x+6, 0, 0, 5, 2, 1);
418 OBMC_FILTER (x , 0, 2, 5, 0, 1);
419 OBMC_FILTER (x+1, 0, 2, 5, 0, 1);
420 OBMC_FILTER4(x+2, 0, 1, 5, 0, 2);
421 OBMC_FILTER4(x+4, 0, 0, 5, 1, 2);
422 OBMC_FILTER (x+6, 0, 0, 5, 2, 1);
423 OBMC_FILTER (x+7, 0, 0, 5, 2, 1);
425 OBMC_FILTER (x , 0, 2, 4, 0, 2);
426 OBMC_FILTER (x+1, 0, 1, 5, 0, 2);
427 OBMC_FILTER (x+6, 0, 0, 5, 1, 2);
428 OBMC_FILTER (x+7, 0, 0, 4, 2, 2);
431 /* obmc for 1 8x8 luma block */
432 static inline void obmc_motion(MpegEncContext *s,
433 uint8_t *dest, uint8_t *src,
434 int src_x, int src_y,
435 op_pixels_func *pix_op,
436 int16_t mv[5][2]/* mid top left right bottom*/)
442 assert(s->quarter_sample==0);
445 if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
448 ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
449 hpel_motion(s, ptr[i], src, 0, 0,
451 s->width, s->height, s->linesize,
452 s->h_edge_pos, s->v_edge_pos,
458 put_obmc(dest, ptr, s->linesize);
461 static inline void qpel_motion(MpegEncContext *s,
462 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
463 int field_based, int bottom_field, int field_select,
464 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
465 qpel_mc_func (*qpix_op)[16],
466 int motion_x, int motion_y, int h)
468 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
469 int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
471 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
472 src_x = s->mb_x * 16 + (motion_x >> 2);
473 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
475 v_edge_pos = s->v_edge_pos >> field_based;
476 linesize = s->linesize << field_based;
477 uvlinesize = s->uvlinesize << field_based;
482 }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){
483 static const int rtab[8]= {0,0,1,1,0,0,0,1};
484 mx= (motion_x>>1) + rtab[motion_x&7];
485 my= (motion_y>>1) + rtab[motion_y&7];
486 }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
487 mx= (motion_x>>1)|(motion_x&1);
488 my= (motion_y>>1)|(motion_y&1);
496 uvdxy= (mx&1) | ((my&1)<<1);
500 uvsrc_x = s->mb_x * 8 + mx;
501 uvsrc_y = s->mb_y * (8 >> field_based) + my;
503 ptr_y = ref_picture[0] + src_y * linesize + src_x;
504 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
505 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
507 if( (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&3) - 16, 0)
508 || (unsigned)src_y > FFMAX( v_edge_pos - (motion_y&3) - h , 0)){
509 s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
510 17, 17+field_based, src_x, src_y<<field_based,
511 s->h_edge_pos, s->v_edge_pos);
512 ptr_y= s->edge_emu_buffer;
513 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
514 uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
515 s->dsp.emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize,
517 uvsrc_x, uvsrc_y<<field_based,
518 s->h_edge_pos>>1, s->v_edge_pos>>1);
519 s->dsp.emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize,
521 uvsrc_x, uvsrc_y<<field_based,
522 s->h_edge_pos>>1, s->v_edge_pos>>1);
529 qpix_op[0][dxy](dest_y, ptr_y, linesize);
532 dest_y += s->linesize;
533 dest_cb+= s->uvlinesize;
534 dest_cr+= s->uvlinesize;
538 ptr_y += s->linesize;
539 ptr_cb += s->uvlinesize;
540 ptr_cr += s->uvlinesize;
542 //damn interlaced mode
543 //FIXME boundary mirroring is not exactly correct here
544 qpix_op[1][dxy](dest_y , ptr_y , linesize);
545 qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize);
547 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
548 pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
549 pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
554 * h263 chroma 4mv motion compensation.
556 static inline void chroma_4mv_motion(MpegEncContext *s,
557 uint8_t *dest_cb, uint8_t *dest_cr,
558 uint8_t **ref_picture,
559 op_pixels_func *pix_op,
561 int dxy, emu=0, src_x, src_y, offset;
564 /* In case of 8X8, we construct a single chroma motion vector
565 with a special rounding */
566 mx= ff_h263_round_chroma(mx);
567 my= ff_h263_round_chroma(my);
569 dxy = ((my & 1) << 1) | (mx & 1);
573 src_x = s->mb_x * 8 + mx;
574 src_y = s->mb_y * 8 + my;
575 src_x = av_clip(src_x, -8, (s->width >> 1));
576 if (src_x == (s->width >> 1))
578 src_y = av_clip(src_y, -8, (s->height >> 1));
579 if (src_y == (s->height >> 1))
582 offset = src_y * s->uvlinesize + src_x;
583 ptr = ref_picture[1] + offset;
584 if(s->flags&CODEC_FLAG_EMU_EDGE){
585 if( (unsigned)src_x > FFMAX((s->h_edge_pos>>1) - (dxy &1) - 8, 0)
586 || (unsigned)src_y > FFMAX((s->v_edge_pos>>1) - (dxy>>1) - 8, 0)){
587 s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
589 s->h_edge_pos>>1, s->v_edge_pos>>1);
590 ptr= s->edge_emu_buffer;
594 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
596 ptr = ref_picture[2] + offset;
598 s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
600 s->h_edge_pos>>1, s->v_edge_pos>>1);
601 ptr= s->edge_emu_buffer;
603 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
606 static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir){
607 /* fetch pixels for estimated mv 4 macroblocks ahead
608 * optimized for 64byte cache lines */
609 const int shift = s->quarter_sample ? 2 : 1;
610 const int mx= (s->mv[dir][0][0]>>shift) + 16*s->mb_x + 8;
611 const int my= (s->mv[dir][0][1]>>shift) + 16*s->mb_y;
612 int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64;
613 s->dsp.prefetch(pix[0]+off, s->linesize, 4);
614 off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
615 s->dsp.prefetch(pix[1]+off, pix[2]-pix[1], 2);
619 * motion compensation of a single macroblock
621 * @param dest_y luma destination pointer
622 * @param dest_cb chroma cb/u destination pointer
623 * @param dest_cr chroma cr/v destination pointer
624 * @param dir direction (0->forward, 1->backward)
625 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
626 * @param pix_op halfpel motion compensation function (average or put normally)
627 * @param qpix_op qpel motion compensation function (average or put normally)
628 * the motion vectors are taken from s->mv and the MV type from s->mv_type
630 static av_always_inline void MPV_motion_internal(MpegEncContext *s,
631 uint8_t *dest_y, uint8_t *dest_cb,
632 uint8_t *dest_cr, int dir,
633 uint8_t **ref_picture,
634 op_pixels_func (*pix_op)[4],
635 qpel_mc_func (*qpix_op)[16], int is_mpeg12)
637 int dxy, mx, my, src_x, src_y, motion_x, motion_y;
644 prefetch_motion(s, ref_picture, dir);
646 if(!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B){
647 int16_t mv_cache[4][4][2];
648 const int xy= s->mb_x + s->mb_y*s->mb_stride;
649 const int mot_stride= s->b8_stride;
650 const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
652 assert(!s->mb_skipped);
654 memcpy(mv_cache[1][1], s->current_picture.f.motion_val[0][mot_xy ], sizeof(int16_t) * 4);
655 memcpy(mv_cache[2][1], s->current_picture.f.motion_val[0][mot_xy + mot_stride], sizeof(int16_t) * 4);
656 memcpy(mv_cache[3][1], s->current_picture.f.motion_val[0][mot_xy + mot_stride], sizeof(int16_t) * 4);
658 if (mb_y == 0 || IS_INTRA(s->current_picture.f.mb_type[xy - s->mb_stride])) {
659 memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
661 memcpy(mv_cache[0][1], s->current_picture.f.motion_val[0][mot_xy - mot_stride], sizeof(int16_t) * 4);
664 if (mb_x == 0 || IS_INTRA(s->current_picture.f.mb_type[xy - 1])) {
665 AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
666 AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
668 AV_COPY32(mv_cache[1][0], s->current_picture.f.motion_val[0][mot_xy - 1]);
669 AV_COPY32(mv_cache[2][0], s->current_picture.f.motion_val[0][mot_xy - 1 + mot_stride]);
672 if (mb_x + 1 >= s->mb_width || IS_INTRA(s->current_picture.f.mb_type[xy + 1])) {
673 AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
674 AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
676 AV_COPY32(mv_cache[1][3], s->current_picture.f.motion_val[0][mot_xy + 2]);
677 AV_COPY32(mv_cache[2][3], s->current_picture.f.motion_val[0][mot_xy + 2 + mot_stride]);
683 const int x= (i&1)+1;
684 const int y= (i>>1)+1;
686 {mv_cache[y][x ][0], mv_cache[y][x ][1]},
687 {mv_cache[y-1][x][0], mv_cache[y-1][x][1]},
688 {mv_cache[y][x-1][0], mv_cache[y][x-1][1]},
689 {mv_cache[y][x+1][0], mv_cache[y][x+1][1]},
690 {mv_cache[y+1][x][0], mv_cache[y+1][x][1]}};
692 obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
694 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
701 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY))
702 chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
710 if(s->real_sprite_warping_points==1){
711 gmc1_motion(s, dest_y, dest_cb, dest_cr,
714 gmc_motion(s, dest_y, dest_cb, dest_cr,
717 }else if(!is_mpeg12 && s->quarter_sample){
718 qpel_motion(s, dest_y, dest_cb, dest_cr,
720 ref_picture, pix_op, qpix_op,
721 s->mv[dir][0][0], s->mv[dir][0][1], 16);
722 }else if(!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) && s->mspel && s->codec_id == CODEC_ID_WMV2){
723 ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
725 s->mv[dir][0][0], s->mv[dir][0][1], 16);
728 mpeg_motion(s, dest_y, dest_cb, dest_cr,
731 s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y);
738 if(s->quarter_sample){
740 motion_x = s->mv[dir][i][0];
741 motion_y = s->mv[dir][i][1];
743 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
744 src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
745 src_y = mb_y * 16 + (motion_y >> 2) + (i >>1) * 8;
747 /* WARNING: do no forget half pels */
748 src_x = av_clip(src_x, -16, s->width);
749 if (src_x == s->width)
751 src_y = av_clip(src_y, -16, s->height);
752 if (src_y == s->height)
755 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
756 if(s->flags&CODEC_FLAG_EMU_EDGE){
757 if( (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&3) - 8, 0)
758 || (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y&3) - 8, 0)){
759 s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
762 s->h_edge_pos, s->v_edge_pos);
763 ptr= s->edge_emu_buffer;
766 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
767 qpix_op[1][dxy](dest, ptr, s->linesize);
769 mx += s->mv[dir][i][0]/2;
770 my += s->mv[dir][i][1]/2;
774 hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
775 ref_picture[0], 0, 0,
776 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
777 s->width, s->height, s->linesize,
778 s->h_edge_pos, s->v_edge_pos,
780 s->mv[dir][i][0], s->mv[dir][i][1]);
782 mx += s->mv[dir][i][0];
783 my += s->mv[dir][i][1];
787 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY))
788 chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
792 if (s->picture_structure == PICT_FRAME) {
793 if(!is_mpeg12 && s->quarter_sample){
795 qpel_motion(s, dest_y, dest_cb, dest_cr,
796 1, i, s->field_select[dir][i],
797 ref_picture, pix_op, qpix_op,
798 s->mv[dir][i][0], s->mv[dir][i][1], 8);
802 mpeg_motion(s, dest_y, dest_cb, dest_cr,
803 1, 0, s->field_select[dir][0],
805 s->mv[dir][0][0], s->mv[dir][0][1], 8, mb_y);
807 mpeg_motion(s, dest_y, dest_cb, dest_cr,
808 1, 1, s->field_select[dir][1],
810 s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y);
813 if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != AV_PICTURE_TYPE_B && !s->first_field){
814 ref_picture = s->current_picture_ptr->f.data;
817 mpeg_motion(s, dest_y, dest_cb, dest_cr,
818 0, 0, s->field_select[dir][0],
820 s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y>>1);
825 uint8_t ** ref2picture;
827 if(s->picture_structure == s->field_select[dir][i] + 1
828 || s->pict_type == AV_PICTURE_TYPE_B || s->first_field){
829 ref2picture= ref_picture;
831 ref2picture = s->current_picture_ptr->f.data;
834 mpeg_motion(s, dest_y, dest_cb, dest_cr,
835 0, 0, s->field_select[dir][i],
837 s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8, mb_y>>1);
839 dest_y += 16*s->linesize;
840 dest_cb+= (16>>s->chroma_y_shift)*s->uvlinesize;
841 dest_cr+= (16>>s->chroma_y_shift)*s->uvlinesize;
845 if(s->picture_structure == PICT_FRAME){
849 mpeg_motion(s, dest_y, dest_cb, dest_cr,
852 s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], 8, mb_y);
854 pix_op = s->dsp.avg_pixels_tab;
858 mpeg_motion(s, dest_y, dest_cb, dest_cr,
859 0, 0, s->picture_structure != i+1,
861 s->mv[dir][2*i][0],s->mv[dir][2*i][1],16, mb_y>>1);
863 // after put we make avg of the same block
864 pix_op=s->dsp.avg_pixels_tab;
866 //opposite parity is always in the same frame if this is second field
868 ref_picture = s->current_picture_ptr->f.data;
877 static inline void MPV_motion(MpegEncContext *s,
878 uint8_t *dest_y, uint8_t *dest_cb,
879 uint8_t *dest_cr, int dir,
880 uint8_t **ref_picture,
881 op_pixels_func (*pix_op)[4],
882 qpel_mc_func (*qpix_op)[16])
885 if(s->out_format == FMT_MPEG1)
886 MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
887 ref_picture, pix_op, qpix_op, 1);
890 MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
891 ref_picture, pix_op, qpix_op, 0);
893 #endif /* AVCODEC_MPEGVIDEO_COMMON_H */