Libav
mpegvideo_motion.c
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1 /*
2  * Copyright (c) 2000,2001 Fabrice Bellard
3  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
6  *
7  * This file is part of Libav.
8  *
9  * Libav is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * Libav is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with Libav; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <string.h>
25 
26 #include "libavutil/internal.h"
27 #include "avcodec.h"
28 #include "h261.h"
29 #include "mpegutils.h"
30 #include "mpegvideo.h"
31 #include "mjpegenc.h"
32 #include "msmpeg4.h"
33 #include "qpeldsp.h"
34 #include <limits.h>
35 
36 static void gmc1_motion(MpegEncContext *s,
37  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
38  uint8_t **ref_picture)
39 {
40  uint8_t *ptr;
41  int src_x, src_y, motion_x, motion_y;
42  ptrdiff_t offset, linesize, uvlinesize;
43  int emu = 0;
44 
45  motion_x = s->sprite_offset[0][0];
46  motion_y = s->sprite_offset[0][1];
47  src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy + 1));
48  src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy + 1));
49  motion_x <<= (3 - s->sprite_warping_accuracy);
50  motion_y <<= (3 - s->sprite_warping_accuracy);
51  src_x = av_clip(src_x, -16, s->width);
52  if (src_x == s->width)
53  motion_x = 0;
54  src_y = av_clip(src_y, -16, s->height);
55  if (src_y == s->height)
56  motion_y = 0;
57 
58  linesize = s->linesize;
59  uvlinesize = s->uvlinesize;
60 
61  ptr = ref_picture[0] + src_y * linesize + src_x;
62 
63  if ((unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0) ||
64  (unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)) {
66  linesize, linesize,
67  17, 17,
68  src_x, src_y,
69  s->h_edge_pos, s->v_edge_pos);
70  ptr = s->edge_emu_buffer;
71  }
72 
73  if ((motion_x | motion_y) & 7) {
74  s->mdsp.gmc1(dest_y, ptr, linesize, 16,
75  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
76  s->mdsp.gmc1(dest_y + 8, ptr + 8, linesize, 16,
77  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
78  } else {
79  int dxy;
80 
81  dxy = ((motion_x >> 3) & 1) | ((motion_y >> 2) & 2);
82  if (s->no_rounding) {
83  s->hdsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
84  } else {
85  s->hdsp.put_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
86  }
87  }
88 
89  if (CONFIG_GRAY && s->flags & CODEC_FLAG_GRAY)
90  return;
91 
92  motion_x = s->sprite_offset[1][0];
93  motion_y = s->sprite_offset[1][1];
94  src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy + 1));
95  src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy + 1));
96  motion_x <<= (3 - s->sprite_warping_accuracy);
97  motion_y <<= (3 - s->sprite_warping_accuracy);
98  src_x = av_clip(src_x, -8, s->width >> 1);
99  if (src_x == s->width >> 1)
100  motion_x = 0;
101  src_y = av_clip(src_y, -8, s->height >> 1);
102  if (src_y == s->height >> 1)
103  motion_y = 0;
104 
105  offset = (src_y * uvlinesize) + src_x;
106  ptr = ref_picture[1] + offset;
107  if ((unsigned)src_x >= FFMAX((s->h_edge_pos >> 1) - 9, 0) ||
108  (unsigned)src_y >= FFMAX((s->v_edge_pos >> 1) - 9, 0)) {
110  uvlinesize, uvlinesize,
111  9, 9,
112  src_x, src_y,
113  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
114  ptr = s->edge_emu_buffer;
115  emu = 1;
116  }
117  s->mdsp.gmc1(dest_cb, ptr, uvlinesize, 8,
118  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
119 
120  ptr = ref_picture[2] + offset;
121  if (emu) {
123  uvlinesize, uvlinesize,
124  9, 9,
125  src_x, src_y,
126  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
127  ptr = s->edge_emu_buffer;
128  }
129  s->mdsp.gmc1(dest_cr, ptr, uvlinesize, 8,
130  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
131 }
132 
133 static void gmc_motion(MpegEncContext *s,
134  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
135  uint8_t **ref_picture)
136 {
137  uint8_t *ptr;
138  int linesize, uvlinesize;
139  const int a = s->sprite_warping_accuracy;
140  int ox, oy;
141 
142  linesize = s->linesize;
143  uvlinesize = s->uvlinesize;
144 
145  ptr = ref_picture[0];
146 
147  ox = s->sprite_offset[0][0] + s->sprite_delta[0][0] * s->mb_x * 16 +
148  s->sprite_delta[0][1] * s->mb_y * 16;
149  oy = s->sprite_offset[0][1] + s->sprite_delta[1][0] * s->mb_x * 16 +
150  s->sprite_delta[1][1] * s->mb_y * 16;
151 
152  s->mdsp.gmc(dest_y, ptr, linesize, 16,
153  ox, oy,
154  s->sprite_delta[0][0], s->sprite_delta[0][1],
155  s->sprite_delta[1][0], s->sprite_delta[1][1],
156  a + 1, (1 << (2 * a + 1)) - s->no_rounding,
157  s->h_edge_pos, s->v_edge_pos);
158  s->mdsp.gmc(dest_y + 8, ptr, linesize, 16,
159  ox + s->sprite_delta[0][0] * 8,
160  oy + s->sprite_delta[1][0] * 8,
161  s->sprite_delta[0][0], s->sprite_delta[0][1],
162  s->sprite_delta[1][0], s->sprite_delta[1][1],
163  a + 1, (1 << (2 * a + 1)) - s->no_rounding,
164  s->h_edge_pos, s->v_edge_pos);
165 
166  if (CONFIG_GRAY && s->flags & CODEC_FLAG_GRAY)
167  return;
168 
169  ox = s->sprite_offset[1][0] + s->sprite_delta[0][0] * s->mb_x * 8 +
170  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 +
172  s->sprite_delta[1][1] * s->mb_y * 8;
173 
174  ptr = ref_picture[1];
175  s->mdsp.gmc(dest_cb, ptr, uvlinesize, 8,
176  ox, oy,
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);
181 
182  ptr = ref_picture[2];
183  s->mdsp.gmc(dest_cr, ptr, uvlinesize, 8,
184  ox, 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 
191 static inline int hpel_motion(MpegEncContext *s,
192  uint8_t *dest, uint8_t *src,
193  int src_x, int src_y,
194  op_pixels_func *pix_op,
195  int motion_x, int motion_y)
196 {
197  int dxy = 0;
198  int emu = 0;
199 
200  src_x += motion_x >> 1;
201  src_y += motion_y >> 1;
202 
203  /* WARNING: do no forget half pels */
204  src_x = av_clip(src_x, -16, s->width); // FIXME unneeded for emu?
205  if (src_x != s->width)
206  dxy |= motion_x & 1;
207  src_y = av_clip(src_y, -16, s->height);
208  if (src_y != s->height)
209  dxy |= (motion_y & 1) << 1;
210  src += src_y * s->linesize + src_x;
211 
212  if (s->unrestricted_mv) {
213  if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 8, 0) ||
214  (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 1) - 8, 0)) {
216  s->linesize, s->linesize,
217  9, 9,
218  src_x, src_y, s->h_edge_pos,
219  s->v_edge_pos);
220  src = s->edge_emu_buffer;
221  emu = 1;
222  }
223  }
224  pix_op[dxy](dest, src, s->linesize, 8);
225  return emu;
226 }
227 
228 static av_always_inline
230  uint8_t *dest_y,
231  uint8_t *dest_cb,
232  uint8_t *dest_cr,
233  int field_based,
234  int bottom_field,
235  int field_select,
236  uint8_t **ref_picture,
237  op_pixels_func (*pix_op)[4],
238  int motion_x,
239  int motion_y,
240  int h,
241  int is_mpeg12,
242  int mb_y)
243 {
244  uint8_t *ptr_y, *ptr_cb, *ptr_cr;
245  int dxy, uvdxy, mx, my, src_x, src_y,
246  uvsrc_x, uvsrc_y, v_edge_pos;
247  ptrdiff_t uvlinesize, linesize;
248 
249 #if 0
250  if (s->quarter_sample) {
251  motion_x >>= 1;
252  motion_y >>= 1;
253  }
254 #endif
255 
256  v_edge_pos = s->v_edge_pos >> field_based;
257  linesize = s->current_picture.f->linesize[0] << field_based;
258  uvlinesize = s->current_picture.f->linesize[1] << field_based;
259 
260  dxy = ((motion_y & 1) << 1) | (motion_x & 1);
261  src_x = s->mb_x * 16 + (motion_x >> 1);
262  src_y = (mb_y << (4 - field_based)) + (motion_y >> 1);
263 
264  if (!is_mpeg12 && s->out_format == FMT_H263) {
265  if ((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based) {
266  mx = (motion_x >> 1) | (motion_x & 1);
267  my = motion_y >> 1;
268  uvdxy = ((my & 1) << 1) | (mx & 1);
269  uvsrc_x = s->mb_x * 8 + (mx >> 1);
270  uvsrc_y = (mb_y << (3 - field_based)) + (my >> 1);
271  } else {
272  uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
273  uvsrc_x = src_x >> 1;
274  uvsrc_y = src_y >> 1;
275  }
276  // Even chroma mv's are full pel in H261
277  } else if (!is_mpeg12 && s->out_format == FMT_H261) {
278  mx = motion_x / 4;
279  my = motion_y / 4;
280  uvdxy = 0;
281  uvsrc_x = s->mb_x * 8 + mx;
282  uvsrc_y = mb_y * 8 + my;
283  } else {
284  if (s->chroma_y_shift) {
285  mx = motion_x / 2;
286  my = motion_y / 2;
287  uvdxy = ((my & 1) << 1) | (mx & 1);
288  uvsrc_x = s->mb_x * 8 + (mx >> 1);
289  uvsrc_y = (mb_y << (3 - field_based)) + (my >> 1);
290  } else {
291  if (s->chroma_x_shift) {
292  // Chroma422
293  mx = motion_x / 2;
294  uvdxy = ((motion_y & 1) << 1) | (mx & 1);
295  uvsrc_x = s->mb_x * 8 + (mx >> 1);
296  uvsrc_y = src_y;
297  } else {
298  // Chroma444
299  uvdxy = dxy;
300  uvsrc_x = src_x;
301  uvsrc_y = src_y;
302  }
303  }
304  }
305 
306  ptr_y = ref_picture[0] + src_y * linesize + src_x;
307  ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
308  ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
309 
310  if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 16, 0) ||
311  (unsigned)src_y > FFMAX(v_edge_pos - (motion_y & 1) - h, 0)) {
312  if (is_mpeg12 ||
316  "MPEG motion vector out of boundary (%d %d)\n", src_x,
317  src_y);
318  return;
319  }
321  s->linesize, s->linesize,
322  17, 17 + field_based,
323  src_x, src_y << field_based,
324  s->h_edge_pos, s->v_edge_pos);
325  ptr_y = s->edge_emu_buffer;
326  if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
327  uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
328  s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
329  s->uvlinesize, 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  s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
334  s->uvlinesize, 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);
338  ptr_cb = uvbuf;
339  ptr_cr = uvbuf + 16;
340  }
341  }
342 
343  /* FIXME use this for field pix too instead of the obnoxious hack which
344  * changes picture.data */
345  if (bottom_field) {
346  dest_y += s->linesize;
347  dest_cb += s->uvlinesize;
348  dest_cr += s->uvlinesize;
349  }
350 
351  if (field_select) {
352  ptr_y += s->linesize;
353  ptr_cb += s->uvlinesize;
354  ptr_cr += s->uvlinesize;
355  }
356 
357  pix_op[0][dxy](dest_y, ptr_y, linesize, h);
358 
359  if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
360  pix_op[s->chroma_x_shift][uvdxy]
361  (dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
362  pix_op[s->chroma_x_shift][uvdxy]
363  (dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
364  }
365  if (!is_mpeg12 && (CONFIG_H261_ENCODER || CONFIG_H261_DECODER) &&
366  s->out_format == FMT_H261) {
368  }
369 }
370 /* apply one mpeg motion vector to the three components */
372  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
373  int field_select, uint8_t **ref_picture,
374  op_pixels_func (*pix_op)[4],
375  int motion_x, int motion_y, int h, int mb_y)
376 {
377 #if !CONFIG_SMALL
378  if (s->out_format == FMT_MPEG1)
379  mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
380  field_select, ref_picture, pix_op,
381  motion_x, motion_y, h, 1, mb_y);
382  else
383 #endif
384  mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
385  field_select, ref_picture, pix_op,
386  motion_x, motion_y, h, 0, mb_y);
387 }
388 
389 static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y,
390  uint8_t *dest_cb, uint8_t *dest_cr,
391  int bottom_field, int field_select,
392  uint8_t **ref_picture,
393  op_pixels_func (*pix_op)[4],
394  int motion_x, int motion_y, int h, int mb_y)
395 {
396 #if !CONFIG_SMALL
397  if(s->out_format == FMT_MPEG1)
398  mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
399  bottom_field, field_select, ref_picture, pix_op,
400  motion_x, motion_y, h, 1, mb_y);
401  else
402 #endif
403  mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
404  bottom_field, field_select, ref_picture, pix_op,
405  motion_x, motion_y, h, 0, mb_y);
406 }
407 
408 // FIXME: SIMDify, avg variant, 16x16 version
409 static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride)
410 {
411  int x;
412  uint8_t *const top = src[1];
413  uint8_t *const left = src[2];
414  uint8_t *const mid = src[0];
415  uint8_t *const right = src[3];
416  uint8_t *const bottom = src[4];
417 #define OBMC_FILTER(x, t, l, m, r, b)\
418  dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
419 #define OBMC_FILTER4(x, t, l, m, r, b)\
420  OBMC_FILTER(x , t, l, m, r, b);\
421  OBMC_FILTER(x+1 , t, l, m, r, b);\
422  OBMC_FILTER(x +stride, t, l, m, r, b);\
423  OBMC_FILTER(x+1+stride, t, l, m, r, b);
424 
425  x = 0;
426  OBMC_FILTER (x , 2, 2, 4, 0, 0);
427  OBMC_FILTER (x + 1, 2, 1, 5, 0, 0);
428  OBMC_FILTER4(x + 2, 2, 1, 5, 0, 0);
429  OBMC_FILTER4(x + 4, 2, 0, 5, 1, 0);
430  OBMC_FILTER (x + 6, 2, 0, 5, 1, 0);
431  OBMC_FILTER (x + 7, 2, 0, 4, 2, 0);
432  x += stride;
433  OBMC_FILTER (x , 1, 2, 5, 0, 0);
434  OBMC_FILTER (x + 1, 1, 2, 5, 0, 0);
435  OBMC_FILTER (x + 6, 1, 0, 5, 2, 0);
436  OBMC_FILTER (x + 7, 1, 0, 5, 2, 0);
437  x += stride;
438  OBMC_FILTER4(x , 1, 2, 5, 0, 0);
439  OBMC_FILTER4(x + 2, 1, 1, 6, 0, 0);
440  OBMC_FILTER4(x + 4, 1, 0, 6, 1, 0);
441  OBMC_FILTER4(x + 6, 1, 0, 5, 2, 0);
442  x += 2 * stride;
443  OBMC_FILTER4(x , 0, 2, 5, 0, 1);
444  OBMC_FILTER4(x + 2, 0, 1, 6, 0, 1);
445  OBMC_FILTER4(x + 4, 0, 0, 6, 1, 1);
446  OBMC_FILTER4(x + 6, 0, 0, 5, 2, 1);
447  x += 2*stride;
448  OBMC_FILTER (x , 0, 2, 5, 0, 1);
449  OBMC_FILTER (x + 1, 0, 2, 5, 0, 1);
450  OBMC_FILTER4(x + 2, 0, 1, 5, 0, 2);
451  OBMC_FILTER4(x + 4, 0, 0, 5, 1, 2);
452  OBMC_FILTER (x + 6, 0, 0, 5, 2, 1);
453  OBMC_FILTER (x + 7, 0, 0, 5, 2, 1);
454  x += stride;
455  OBMC_FILTER (x , 0, 2, 4, 0, 2);
456  OBMC_FILTER (x + 1, 0, 1, 5, 0, 2);
457  OBMC_FILTER (x + 6, 0, 0, 5, 1, 2);
458  OBMC_FILTER (x + 7, 0, 0, 4, 2, 2);
459 }
460 
461 /* obmc for 1 8x8 luma block */
462 static inline void obmc_motion(MpegEncContext *s,
463  uint8_t *dest, uint8_t *src,
464  int src_x, int src_y,
465  op_pixels_func *pix_op,
466  int16_t mv[5][2] /* mid top left right bottom */)
467 #define MID 0
468 {
469  int i;
470  uint8_t *ptr[5];
471 
472  assert(s->quarter_sample == 0);
473 
474  for (i = 0; i < 5; i++) {
475  if (i && mv[i][0] == mv[MID][0] && mv[i][1] == mv[MID][1]) {
476  ptr[i] = ptr[MID];
477  } else {
478  ptr[i] = s->obmc_scratchpad + 8 * (i & 1) +
479  s->linesize * 8 * (i >> 1);
480  hpel_motion(s, ptr[i], src, src_x, src_y, pix_op,
481  mv[i][0], mv[i][1]);
482  }
483  }
484 
485  put_obmc(dest, ptr, s->linesize);
486 }
487 
488 static inline void qpel_motion(MpegEncContext *s,
489  uint8_t *dest_y,
490  uint8_t *dest_cb,
491  uint8_t *dest_cr,
492  int field_based, int bottom_field,
493  int field_select, uint8_t **ref_picture,
494  op_pixels_func (*pix_op)[4],
495  qpel_mc_func (*qpix_op)[16],
496  int motion_x, int motion_y, int h)
497 {
498  uint8_t *ptr_y, *ptr_cb, *ptr_cr;
499  int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos;
500  ptrdiff_t linesize, uvlinesize;
501 
502  dxy = ((motion_y & 3) << 2) | (motion_x & 3);
503 
504  src_x = s->mb_x * 16 + (motion_x >> 2);
505  src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
506 
507  v_edge_pos = s->v_edge_pos >> field_based;
508  linesize = s->linesize << field_based;
509  uvlinesize = s->uvlinesize << field_based;
510 
511  if (field_based) {
512  mx = motion_x / 2;
513  my = motion_y >> 1;
514  } else if (s->workaround_bugs & FF_BUG_QPEL_CHROMA2) {
515  static const int rtab[8] = { 0, 0, 1, 1, 0, 0, 0, 1 };
516  mx = (motion_x >> 1) + rtab[motion_x & 7];
517  my = (motion_y >> 1) + rtab[motion_y & 7];
518  } else if (s->workaround_bugs & FF_BUG_QPEL_CHROMA) {
519  mx = (motion_x >> 1) | (motion_x & 1);
520  my = (motion_y >> 1) | (motion_y & 1);
521  } else {
522  mx = motion_x / 2;
523  my = motion_y / 2;
524  }
525  mx = (mx >> 1) | (mx & 1);
526  my = (my >> 1) | (my & 1);
527 
528  uvdxy = (mx & 1) | ((my & 1) << 1);
529  mx >>= 1;
530  my >>= 1;
531 
532  uvsrc_x = s->mb_x * 8 + mx;
533  uvsrc_y = s->mb_y * (8 >> field_based) + my;
534 
535  ptr_y = ref_picture[0] + src_y * linesize + src_x;
536  ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
537  ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
538 
539  if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 3) - 16, 0) ||
540  (unsigned)src_y > FFMAX(v_edge_pos - (motion_y & 3) - h, 0)) {
542  s->linesize, s->linesize,
543  17, 17 + field_based,
544  src_x, src_y << field_based,
545  s->h_edge_pos, s->v_edge_pos);
546  ptr_y = s->edge_emu_buffer;
547  if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
548  uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
549  s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
550  s->uvlinesize, s->uvlinesize,
551  9, 9 + field_based,
552  uvsrc_x, uvsrc_y << field_based,
553  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
554  s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
555  s->uvlinesize, s->uvlinesize,
556  9, 9 + field_based,
557  uvsrc_x, uvsrc_y << field_based,
558  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
559  ptr_cb = uvbuf;
560  ptr_cr = uvbuf + 16;
561  }
562  }
563 
564  if (!field_based)
565  qpix_op[0][dxy](dest_y, ptr_y, linesize);
566  else {
567  if (bottom_field) {
568  dest_y += s->linesize;
569  dest_cb += s->uvlinesize;
570  dest_cr += s->uvlinesize;
571  }
572 
573  if (field_select) {
574  ptr_y += s->linesize;
575  ptr_cb += s->uvlinesize;
576  ptr_cr += s->uvlinesize;
577  }
578  // damn interlaced mode
579  // FIXME boundary mirroring is not exactly correct here
580  qpix_op[1][dxy](dest_y, ptr_y, linesize);
581  qpix_op[1][dxy](dest_y + 8, ptr_y + 8, linesize);
582  }
583  if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
584  pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
585  pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
586  }
587 }
588 
593  uint8_t *dest_cb, uint8_t *dest_cr,
594  uint8_t **ref_picture,
595  op_pixels_func *pix_op,
596  int mx, int my)
597 {
598  uint8_t *ptr;
599  int src_x, src_y, dxy, emu = 0;
600  ptrdiff_t offset;
601 
602  /* In case of 8X8, we construct a single chroma motion vector
603  * with a special rounding */
604  mx = ff_h263_round_chroma(mx);
605  my = ff_h263_round_chroma(my);
606 
607  dxy = ((my & 1) << 1) | (mx & 1);
608  mx >>= 1;
609  my >>= 1;
610 
611  src_x = s->mb_x * 8 + mx;
612  src_y = s->mb_y * 8 + my;
613  src_x = av_clip(src_x, -8, (s->width >> 1));
614  if (src_x == (s->width >> 1))
615  dxy &= ~1;
616  src_y = av_clip(src_y, -8, (s->height >> 1));
617  if (src_y == (s->height >> 1))
618  dxy &= ~2;
619 
620  offset = src_y * s->uvlinesize + src_x;
621  ptr = ref_picture[1] + offset;
622  if ((unsigned)src_x > FFMAX((s->h_edge_pos >> 1) - (dxy & 1) - 8, 0) ||
623  (unsigned)src_y > FFMAX((s->v_edge_pos >> 1) - (dxy >> 1) - 8, 0)) {
625  s->uvlinesize, s->uvlinesize,
626  9, 9, src_x, src_y,
627  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
628  ptr = s->edge_emu_buffer;
629  emu = 1;
630  }
631  pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
632 
633  ptr = ref_picture[2] + offset;
634  if (emu) {
636  s->uvlinesize, s->uvlinesize,
637  9, 9, src_x, src_y,
638  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
639  ptr = s->edge_emu_buffer;
640  }
641  pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
642 }
643 
644 static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir)
645 {
646  /* fetch pixels for estimated mv 4 macroblocks ahead
647  * optimized for 64byte cache lines */
648  const int shift = s->quarter_sample ? 2 : 1;
649  const int mx = (s->mv[dir][0][0] >> shift) + 16 * s->mb_x + 8;
650  const int my = (s->mv[dir][0][1] >> shift) + 16 * s->mb_y;
651  int off = mx + (my + (s->mb_x & 3) * 4) * s->linesize + 64;
652 
653  s->vdsp.prefetch(pix[0] + off, s->linesize, 4);
654  off = (mx >> 1) + ((my >> 1) + (s->mb_x & 7)) * s->uvlinesize + 64;
655  s->vdsp.prefetch(pix[1] + off, pix[2] - pix[1], 2);
656 }
657 
658 static inline void apply_obmc(MpegEncContext *s,
659  uint8_t *dest_y,
660  uint8_t *dest_cb,
661  uint8_t *dest_cr,
662  uint8_t **ref_picture,
663  op_pixels_func (*pix_op)[4])
664 {
665  LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
666  Picture *cur_frame = &s->current_picture;
667  int mb_x = s->mb_x;
668  int mb_y = s->mb_y;
669  const int xy = mb_x + mb_y * s->mb_stride;
670  const int mot_stride = s->b8_stride;
671  const int mot_xy = mb_x * 2 + mb_y * 2 * mot_stride;
672  int mx, my, i;
673 
674  assert(!s->mb_skipped);
675 
676  AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy]);
677  AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
678 
679  AV_COPY32(mv_cache[2][1],
680  cur_frame->motion_val[0][mot_xy + mot_stride]);
681  AV_COPY32(mv_cache[2][2],
682  cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
683 
684  AV_COPY32(mv_cache[3][1],
685  cur_frame->motion_val[0][mot_xy + mot_stride]);
686  AV_COPY32(mv_cache[3][2],
687  cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
688 
689  if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
690  AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
691  AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
692  } else {
693  AV_COPY32(mv_cache[0][1],
694  cur_frame->motion_val[0][mot_xy - mot_stride]);
695  AV_COPY32(mv_cache[0][2],
696  cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
697  }
698 
699  if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
700  AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
701  AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
702  } else {
703  AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
704  AV_COPY32(mv_cache[2][0],
705  cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
706  }
707 
708  if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
709  AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
710  AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
711  } else {
712  AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
713  AV_COPY32(mv_cache[2][3],
714  cur_frame->motion_val[0][mot_xy + 2 + mot_stride]);
715  }
716 
717  mx = 0;
718  my = 0;
719  for (i = 0; i < 4; i++) {
720  const int x = (i & 1) + 1;
721  const int y = (i >> 1) + 1;
722  int16_t mv[5][2] = {
723  { mv_cache[y][x][0], mv_cache[y][x][1] },
724  { mv_cache[y - 1][x][0], mv_cache[y - 1][x][1] },
725  { mv_cache[y][x - 1][0], mv_cache[y][x - 1][1] },
726  { mv_cache[y][x + 1][0], mv_cache[y][x + 1][1] },
727  { mv_cache[y + 1][x][0], mv_cache[y + 1][x][1] }
728  };
729  // FIXME cleanup
730  obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
731  ref_picture[0],
732  mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >> 1) * 8,
733  pix_op[1],
734  mv);
735 
736  mx += mv[0][0];
737  my += mv[0][1];
738  }
739  if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
740  chroma_4mv_motion(s, dest_cb, dest_cr,
741  ref_picture, pix_op[1],
742  mx, my);
743 }
744 
745 static inline void apply_8x8(MpegEncContext *s,
746  uint8_t *dest_y,
747  uint8_t *dest_cb,
748  uint8_t *dest_cr,
749  int dir,
750  uint8_t **ref_picture,
751  qpel_mc_func (*qpix_op)[16],
752  op_pixels_func (*pix_op)[4])
753 {
754  int dxy, mx, my, src_x, src_y;
755  int i;
756  int mb_x = s->mb_x;
757  int mb_y = s->mb_y;
758  uint8_t *ptr, *dest;
759 
760  mx = 0;
761  my = 0;
762  if (s->quarter_sample) {
763  for (i = 0; i < 4; i++) {
764  int motion_x = s->mv[dir][i][0];
765  int motion_y = s->mv[dir][i][1];
766 
767  dxy = ((motion_y & 3) << 2) | (motion_x & 3);
768  src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
769  src_y = mb_y * 16 + (motion_y >> 2) + (i >> 1) * 8;
770 
771  /* WARNING: do no forget half pels */
772  src_x = av_clip(src_x, -16, s->width);
773  if (src_x == s->width)
774  dxy &= ~3;
775  src_y = av_clip(src_y, -16, s->height);
776  if (src_y == s->height)
777  dxy &= ~12;
778 
779  ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
780  if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 3) - 8, 0) ||
781  (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 3) - 8, 0)) {
783  s->linesize, s->linesize,
784  9, 9,
785  src_x, src_y,
786  s->h_edge_pos,
787  s->v_edge_pos);
788  ptr = s->edge_emu_buffer;
789  }
790  dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
791  qpix_op[1][dxy](dest, ptr, s->linesize);
792 
793  mx += s->mv[dir][i][0] / 2;
794  my += s->mv[dir][i][1] / 2;
795  }
796  } else {
797  for (i = 0; i < 4; i++) {
798  hpel_motion(s,
799  dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
800  ref_picture[0],
801  mb_x * 16 + (i & 1) * 8,
802  mb_y * 16 + (i >> 1) * 8,
803  pix_op[1],
804  s->mv[dir][i][0],
805  s->mv[dir][i][1]);
806 
807  mx += s->mv[dir][i][0];
808  my += s->mv[dir][i][1];
809  }
810  }
811 
812  if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
813  chroma_4mv_motion(s, dest_cb, dest_cr,
814  ref_picture, pix_op[1], mx, my);
815 }
816 
830  uint8_t *dest_y,
831  uint8_t *dest_cb,
832  uint8_t *dest_cr,
833  int dir,
834  uint8_t **ref_picture,
835  op_pixels_func (*pix_op)[4],
836  qpel_mc_func (*qpix_op)[16],
837  int is_mpeg12)
838 {
839  int i;
840  int mb_y = s->mb_y;
841 
842  prefetch_motion(s, ref_picture, dir);
843 
844  if (!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B) {
845  apply_obmc(s, dest_y, dest_cb, dest_cr, ref_picture, pix_op);
846  return;
847  }
848 
849  switch (s->mv_type) {
850  case MV_TYPE_16X16:
851  if (s->mcsel) {
852  if (s->real_sprite_warping_points == 1) {
853  gmc1_motion(s, dest_y, dest_cb, dest_cr,
854  ref_picture);
855  } else {
856  gmc_motion(s, dest_y, dest_cb, dest_cr,
857  ref_picture);
858  }
859  } else if (!is_mpeg12 && s->quarter_sample) {
860  qpel_motion(s, dest_y, dest_cb, dest_cr,
861  0, 0, 0,
862  ref_picture, pix_op, qpix_op,
863  s->mv[dir][0][0], s->mv[dir][0][1], 16);
864  } else if (!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) &&
865  s->mspel && s->codec_id == AV_CODEC_ID_WMV2) {
866  ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
867  ref_picture, pix_op,
868  s->mv[dir][0][0], s->mv[dir][0][1], 16);
869  } else {
870  mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
871  ref_picture, pix_op,
872  s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y);
873  }
874  break;
875  case MV_TYPE_8X8:
876  if (!is_mpeg12)
877  apply_8x8(s, dest_y, dest_cb, dest_cr,
878  dir, ref_picture, qpix_op, pix_op);
879  break;
880  case MV_TYPE_FIELD:
881  if (s->picture_structure == PICT_FRAME) {
882  if (!is_mpeg12 && s->quarter_sample) {
883  for (i = 0; i < 2; i++)
884  qpel_motion(s, dest_y, dest_cb, dest_cr,
885  1, i, s->field_select[dir][i],
886  ref_picture, pix_op, qpix_op,
887  s->mv[dir][i][0], s->mv[dir][i][1], 8);
888  } else {
889  /* top field */
890  mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
891  0, s->field_select[dir][0],
892  ref_picture, pix_op,
893  s->mv[dir][0][0], s->mv[dir][0][1], 8, mb_y);
894  /* bottom field */
895  mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
896  1, s->field_select[dir][1],
897  ref_picture, pix_op,
898  s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y);
899  }
900  } else {
901  if (s->picture_structure != s->field_select[dir][0] + 1 &&
902  s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
903  ref_picture = s->current_picture_ptr->f->data;
904  }
905 
906  mpeg_motion(s, dest_y, dest_cb, dest_cr,
907  s->field_select[dir][0],
908  ref_picture, pix_op,
909  s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y >> 1);
910  }
911  break;
912  case MV_TYPE_16X8:
913  for (i = 0; i < 2; i++) {
914  uint8_t **ref2picture;
915 
916  if (s->picture_structure == s->field_select[dir][i] + 1
917  || s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
918  ref2picture = ref_picture;
919  } else {
920  ref2picture = s->current_picture_ptr->f->data;
921  }
922 
923  mpeg_motion(s, dest_y, dest_cb, dest_cr,
924  s->field_select[dir][i],
925  ref2picture, pix_op,
926  s->mv[dir][i][0], s->mv[dir][i][1] + 16 * i,
927  8, mb_y >> 1);
928 
929  dest_y += 16 * s->linesize;
930  dest_cb += (16 >> s->chroma_y_shift) * s->uvlinesize;
931  dest_cr += (16 >> s->chroma_y_shift) * s->uvlinesize;
932  }
933  break;
934  case MV_TYPE_DMV:
935  if (s->picture_structure == PICT_FRAME) {
936  for (i = 0; i < 2; i++) {
937  int j;
938  for (j = 0; j < 2; j++)
939  mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
940  j, j ^ i, ref_picture, pix_op,
941  s->mv[dir][2 * i + j][0],
942  s->mv[dir][2 * i + j][1], 8, mb_y);
943  pix_op = s->hdsp.avg_pixels_tab;
944  }
945  } else {
946  for (i = 0; i < 2; i++) {
947  mpeg_motion(s, dest_y, dest_cb, dest_cr,
948  s->picture_structure != i + 1,
949  ref_picture, pix_op,
950  s->mv[dir][2 * i][0], s->mv[dir][2 * i][1],
951  16, mb_y >> 1);
952 
953  // after put we make avg of the same block
954  pix_op = s->hdsp.avg_pixels_tab;
955 
956  /* opposite parity is always in the same frame if this is
957  * second field */
958  if (!s->first_field) {
959  ref_picture = s->current_picture_ptr->f->data;
960  }
961  }
962  }
963  break;
964  default: assert(0);
965  }
966 }
967 
969  uint8_t *dest_y, uint8_t *dest_cb,
970  uint8_t *dest_cr, int dir,
971  uint8_t **ref_picture,
972  op_pixels_func (*pix_op)[4],
973  qpel_mc_func (*qpix_op)[16])
974 {
975 #if !CONFIG_SMALL
976  if (s->out_format == FMT_MPEG1)
977  mpv_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
978  ref_picture, pix_op, qpix_op, 1);
979  else
980 #endif
981  mpv_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
982  ref_picture, pix_op, qpix_op, 0);
983 }
void ff_mpv_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])
void(* prefetch)(uint8_t *buf, ptrdiff_t stride, int h)
Prefetch memory into cache (if supported by hardware).
Definition: videodsp.h:65
static void gmc_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)
#define MV_TYPE_FIELD
2 vectors, one per field
Definition: mpegvideo.h:391
int sprite_warping_accuracy
Definition: mpegvideo.h:516
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:68
MJPEG encoder.
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:258
enum AVCodecID codec_id
Definition: mpegvideo.h:235
#define FF_BUG_HPEL_CHROMA
Definition: avcodec.h:2324
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:483
int real_sprite_warping_points
Definition: mpegvideo.h:509
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
mpegvideo header.
int stride
Definition: mace.c:144
#define AV_COPY32(d, s)
Definition: intreadwrite.h:506
int chroma_x_shift
Definition: mpegvideo.h:584
int field_select[2][2]
Definition: mpegvideo.h:399
uint8_t
static void chroma_4mv_motion(MpegEncContext *s, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func *pix_op, int mx, int my)
h263 chroma 4mv motion compensation.
enum OutputFormat out_format
output format
Definition: mpegvideo.h:227
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
Definition: mpegvideo.h:406
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:306
quarterpel DSP functions
#define FF_BUG_QPEL_CHROMA2
Definition: avcodec.h:2321
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:510
#define LOCAL_ALIGNED_8(t, v,...)
Definition: internal.h:108
void(* gmc)(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy, int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height)
global motion compensation.
Definition: mpegvideodsp.h:37
#define MID
static void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir)
static int ff_h263_round_chroma(int x)
Definition: mpegvideo.h:779
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:321
int chroma_y_shift
Definition: mpegvideo.h:585
void(* gmc1)(uint8_t *dst, uint8_t *src, int srcStride, int h, int x16, int y16, int rounder)
translational global motion compensation.
Definition: mpegvideodsp.h:32
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:348
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:144
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegvideo.h:327
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:168
#define CONFIG_WMV2_DECODER
Definition: config.h:609
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:514
#define FFMAX(a, b)
Definition: common.h:55
common internal API header
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:511
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
int16_t(*[2] motion_val)[2]
Definition: mpegvideo.h:107
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:310
void ff_mspel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h)
Definition: wmv2.c:92
Picture.
Definition: mpegvideo.h:99
#define CONFIG_GRAY
Definition: config.h:340
static void gmc1_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)
#define FF_BUG_QPEL_CHROMA
Definition: avcodec.h:2319
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:110
static av_always_inline void mpeg_motion_internal(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h, int is_mpeg12, int mb_y)
#define OBMC_FILTER4(x, t, l, m, r, b)
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:590
static const int8_t mv[256][2]
Definition: 4xm.c:75
#define CONFIG_H261_ENCODER
Definition: config.h:949
static av_always_inline void mpv_motion_internal(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16], int is_mpeg12)
motion compensation of a single macroblock
#define MV_TYPE_16X16
1 vector for the whole mb
Definition: mpegvideo.h:388
Libavcodec external API header.
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:260
static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h, int mb_y)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:153
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:223
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:56
#define MV_TYPE_16X8
2 vectors, one per 16x8 block
Definition: mpegvideo.h:390
h261codec.
#define CONFIG_WMV2_ENCODER
Definition: config.h:983
struct AVFrame * f
Definition: mpegvideo.h:100
#define CONFIG_H261_DECODER
Definition: config.h:495
op_pixels_func put_no_rnd_pixels_tab[2][4]
Halfpel motion compensation with no rounding (a+b)>>1.
Definition: hpeldsp.h:80
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:261
static void mpeg_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h, int mb_y)
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:339
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:141
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
Definition: mpegvideo.h:398
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:257
MpegEncContext.
Definition: mpegvideo.h:204
struct AVCodecContext * avctx
Definition: mpegvideo.h:221
static void qpel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16], int motion_x, int motion_y, int h)
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:356
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:256
#define CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:637
uint8_t * dest[3]
Definition: mpegvideo.h:417
uint8_t * obmc_scratchpad
Definition: mpegvideo.h:329
Bi-dir predicted.
Definition: avutil.h:255
#define IS_INTRA(x, y)
#define PICT_FRAME
Definition: mpegutils.h:35
int picture_structure
Definition: mpegvideo.h:570
VideoDSPContext vdsp
Definition: mpegvideo.h:360
#define MV_TYPE_DMV
2 vectors, special mpeg2 Dual Prime Vectors
Definition: mpegvideo.h:392
static void apply_obmc(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func(*pix_op)[4])
int flags
AVCodecContext.flags (HQ, MV4, ...)
Definition: mpegvideo.h:238
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegvideo.h:110
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:244
#define av_always_inline
Definition: attributes.h:40
void ff_h261_loop_filter(MpegEncContext *s)
Definition: h261.c:63
static int hpel_motion(MpegEncContext *s, uint8_t *dest, uint8_t *src, int src_x, int src_y, op_pixels_func *pix_op, int motion_x, int motion_y)
static void obmc_motion(MpegEncContext *s, uint8_t *dest, uint8_t *src, int src_x, int src_y, op_pixels_func *pix_op, int16_t mv[5][2])
#define MV_TYPE_8X8
4 vectors (h263, mpeg4 4MV)
Definition: mpegvideo.h:389
static void apply_8x8(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, qpel_mc_func(*qpix_op)[16], op_pixels_func(*pix_op)[4])
void(* emulated_edge_mc)(uint8_t *buf, const uint8_t *src, ptrdiff_t buf_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
Definition: videodsp.h:52
static void put_obmc(uint8_t *dst, uint8_t *src[5], int stride)
#define OBMC_FILTER(x, t, l, m, r, b)
HpelDSPContext hdsp
Definition: mpegvideo.h:353