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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 FFmpeg.
8  *
9  * FFmpeg 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  * FFmpeg 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 FFmpeg; 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/avassert.h"
27 #include "libavutil/internal.h"
28 #include "avcodec.h"
29 #include "h261.h"
30 #include "mpegutils.h"
31 #include "mpegvideo.h"
32 #include "mjpegenc.h"
33 #include "msmpeg4.h"
34 #include "qpeldsp.h"
35 #include "wmv2.h"
36 #include <limits.h>
37 
38 static void gmc1_motion(MpegEncContext *s,
39  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
40  uint8_t **ref_picture)
41 {
42  uint8_t *ptr;
43  int src_x, src_y, motion_x, motion_y;
44  ptrdiff_t offset, linesize, uvlinesize;
45  int emu = 0;
46 
47  motion_x = s->sprite_offset[0][0];
48  motion_y = s->sprite_offset[0][1];
49  src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy + 1));
50  src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy + 1));
51  motion_x *= 1 << (3 - s->sprite_warping_accuracy);
52  motion_y *= 1 << (3 - s->sprite_warping_accuracy);
53  src_x = av_clip(src_x, -16, s->width);
54  if (src_x == s->width)
55  motion_x = 0;
56  src_y = av_clip(src_y, -16, s->height);
57  if (src_y == s->height)
58  motion_y = 0;
59 
60  linesize = s->linesize;
61  uvlinesize = s->uvlinesize;
62 
63  ptr = ref_picture[0] + src_y * linesize + src_x;
64 
65  if ((unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0) ||
66  (unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)) {
67  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
68  linesize, linesize,
69  17, 17,
70  src_x, src_y,
71  s->h_edge_pos, s->v_edge_pos);
72  ptr = s->sc.edge_emu_buffer;
73  }
74 
75  if ((motion_x | motion_y) & 7) {
76  s->mdsp.gmc1(dest_y, ptr, linesize, 16,
77  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
78  s->mdsp.gmc1(dest_y + 8, ptr + 8, linesize, 16,
79  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
80  } else {
81  int dxy;
82 
83  dxy = ((motion_x >> 3) & 1) | ((motion_y >> 2) & 2);
84  if (s->no_rounding) {
85  s->hdsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
86  } else {
87  s->hdsp.put_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
88  }
89  }
90 
91  if (CONFIG_GRAY && s->avctx->flags & AV_CODEC_FLAG_GRAY)
92  return;
93 
94  motion_x = s->sprite_offset[1][0];
95  motion_y = s->sprite_offset[1][1];
96  src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy + 1));
97  src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy + 1));
98  motion_x *= 1 << (3 - s->sprite_warping_accuracy);
99  motion_y *= 1 << (3 - s->sprite_warping_accuracy);
100  src_x = av_clip(src_x, -8, s->width >> 1);
101  if (src_x == s->width >> 1)
102  motion_x = 0;
103  src_y = av_clip(src_y, -8, s->height >> 1);
104  if (src_y == s->height >> 1)
105  motion_y = 0;
106 
107  offset = (src_y * uvlinesize) + src_x;
108  ptr = ref_picture[1] + offset;
109  if ((unsigned)src_x >= FFMAX((s->h_edge_pos >> 1) - 9, 0) ||
110  (unsigned)src_y >= FFMAX((s->v_edge_pos >> 1) - 9, 0)) {
111  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
112  uvlinesize, uvlinesize,
113  9, 9,
114  src_x, src_y,
115  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
116  ptr = s->sc.edge_emu_buffer;
117  emu = 1;
118  }
119  s->mdsp.gmc1(dest_cb, ptr, uvlinesize, 8,
120  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
121 
122  ptr = ref_picture[2] + offset;
123  if (emu) {
124  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
125  uvlinesize, uvlinesize,
126  9, 9,
127  src_x, src_y,
128  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
129  ptr = s->sc.edge_emu_buffer;
130  }
131  s->mdsp.gmc1(dest_cr, ptr, uvlinesize, 8,
132  motion_x & 15, motion_y & 15, 128 - s->no_rounding);
133 }
134 
135 static void gmc_motion(MpegEncContext *s,
136  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
137  uint8_t **ref_picture)
138 {
139  uint8_t *ptr;
140  int linesize, uvlinesize;
141  const int a = s->sprite_warping_accuracy;
142  int ox, oy;
143 
144  linesize = s->linesize;
145  uvlinesize = s->uvlinesize;
146 
147  ptr = ref_picture[0];
148 
149  ox = s->sprite_offset[0][0] + s->sprite_delta[0][0] * s->mb_x * 16 +
150  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 +
152  s->sprite_delta[1][1] * s->mb_y * 16;
153 
154  s->mdsp.gmc(dest_y, ptr, linesize, 16,
155  ox, oy,
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->mdsp.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);
167 
168  if (CONFIG_GRAY && s->avctx->flags & AV_CODEC_FLAG_GRAY)
169  return;
170 
171  ox = s->sprite_offset[1][0] + s->sprite_delta[0][0] * s->mb_x * 8 +
172  s->sprite_delta[0][1] * s->mb_y * 8;
173  oy = s->sprite_offset[1][1] + s->sprite_delta[1][0] * s->mb_x * 8 +
174  s->sprite_delta[1][1] * s->mb_y * 8;
175 
176  ptr = ref_picture[1];
177  s->mdsp.gmc(dest_cb, ptr, uvlinesize, 8,
178  ox, oy,
179  s->sprite_delta[0][0], s->sprite_delta[0][1],
180  s->sprite_delta[1][0], s->sprite_delta[1][1],
181  a + 1, (1 << (2 * a + 1)) - s->no_rounding,
182  (s->h_edge_pos + 1) >> 1, (s->v_edge_pos + 1) >> 1);
183 
184  ptr = ref_picture[2];
185  s->mdsp.gmc(dest_cr, ptr, uvlinesize, 8,
186  ox, oy,
187  s->sprite_delta[0][0], s->sprite_delta[0][1],
188  s->sprite_delta[1][0], s->sprite_delta[1][1],
189  a + 1, (1 << (2 * a + 1)) - s->no_rounding,
190  (s->h_edge_pos + 1) >> 1, (s->v_edge_pos + 1) >> 1);
191 }
192 
193 static inline int hpel_motion(MpegEncContext *s,
194  uint8_t *dest, uint8_t *src,
195  int src_x, int src_y,
196  op_pixels_func *pix_op,
197  int motion_x, int motion_y)
198 {
199  int dxy = 0;
200  int emu = 0;
201 
202  src_x += motion_x >> 1;
203  src_y += motion_y >> 1;
204 
205  /* WARNING: do no forget half pels */
206  src_x = av_clip(src_x, -16, s->width); // FIXME unneeded for emu?
207  if (src_x != s->width)
208  dxy |= motion_x & 1;
209  src_y = av_clip(src_y, -16, s->height);
210  if (src_y != s->height)
211  dxy |= (motion_y & 1) << 1;
212  src += src_y * s->linesize + src_x;
213 
214  if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 1) - 7, 0) ||
215  (unsigned)src_y >= FFMAX(s->v_edge_pos - (motion_y & 1) - 7, 0)) {
216  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
217  s->linesize, s->linesize,
218  9, 9,
219  src_x, src_y,
220  s->h_edge_pos, s->v_edge_pos);
221  src = s->sc.edge_emu_buffer;
222  emu = 1;
223  }
224  pix_op[dxy](dest, src, s->linesize, 8);
225  return emu;
226 }
227 
228 static av_always_inline
229 void mpeg_motion_internal(MpegEncContext *s,
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 is_16x8,
243  int mb_y)
244 {
245  uint8_t *ptr_y, *ptr_cb, *ptr_cr;
246  int dxy, uvdxy, mx, my, src_x, src_y,
247  uvsrc_x, uvsrc_y, v_edge_pos, block_y_half;
248  ptrdiff_t uvlinesize, linesize;
249 
250  v_edge_pos = s->v_edge_pos >> field_based;
251  linesize = s->current_picture.f->linesize[0] << field_based;
252  uvlinesize = s->current_picture.f->linesize[1] << field_based;
253  block_y_half = (field_based | is_16x8);
254 
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 - block_y_half)) + (motion_y >> 1);
258 
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);
262  my = motion_y >> 1;
263  uvdxy = ((my & 1) << 1) | (mx & 1);
264  uvsrc_x = s->mb_x * 8 + (mx >> 1);
265  uvsrc_y = (mb_y << (3 - block_y_half)) + (my >> 1);
266  } else {
267  uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
268  uvsrc_x = src_x >> 1;
269  uvsrc_y = src_y >> 1;
270  }
271  // Even chroma mv's are full pel in H261
272  } else if (!is_mpeg12 && s->out_format == FMT_H261) {
273  mx = motion_x / 4;
274  my = motion_y / 4;
275  uvdxy = 0;
276  uvsrc_x = s->mb_x * 8 + mx;
277  uvsrc_y = mb_y * 8 + my;
278  } else {
279  if (s->chroma_y_shift) {
280  mx = motion_x / 2;
281  my = motion_y / 2;
282  uvdxy = ((my & 1) << 1) | (mx & 1);
283  uvsrc_x = s->mb_x * 8 + (mx >> 1);
284  uvsrc_y = (mb_y << (3 - block_y_half)) + (my >> 1);
285  } else {
286  if (s->chroma_x_shift) {
287  // Chroma422
288  mx = motion_x / 2;
289  uvdxy = ((motion_y & 1) << 1) | (mx & 1);
290  uvsrc_x = s->mb_x * 8 + (mx >> 1);
291  uvsrc_y = src_y;
292  } else {
293  // Chroma444
294  uvdxy = dxy;
295  uvsrc_x = src_x;
296  uvsrc_y = src_y;
297  }
298  }
299  }
300 
301  ptr_y = ref_picture[0] + src_y * linesize + src_x;
302  ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
303  ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
304 
305  if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 1) - 15 , 0) ||
306  (unsigned)src_y >= FFMAX( v_edge_pos - (motion_y & 1) - h + 1, 0)) {
307  if (is_mpeg12 ||
308  s->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
309  s->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
310  av_log(s->avctx, AV_LOG_DEBUG,
311  "MPEG motion vector out of boundary (%d %d)\n", src_x,
312  src_y);
313  return;
314  }
315  src_y = (unsigned)src_y << field_based;
316  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
317  s->linesize, s->linesize,
318  17, 17 + field_based,
319  src_x, src_y,
320  s->h_edge_pos, s->v_edge_pos);
321  ptr_y = s->sc.edge_emu_buffer;
322  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
323  uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
324  uint8_t *vbuf = ubuf + 10 * s->uvlinesize;
325  if (s->workaround_bugs & FF_BUG_IEDGE)
326  vbuf -= s->uvlinesize;
327  uvsrc_y = (unsigned)uvsrc_y << field_based;
328  s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
329  s->uvlinesize, s->uvlinesize,
330  9, 9 + field_based,
331  uvsrc_x, uvsrc_y,
332  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
333  s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
334  s->uvlinesize, s->uvlinesize,
335  9, 9 + field_based,
336  uvsrc_x, uvsrc_y,
337  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
338  ptr_cb = ubuf;
339  ptr_cr = vbuf;
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->avctx->flags & AV_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) {
367  ff_h261_loop_filter(s);
368  }
369 }
370 /* apply one mpeg motion vector to the three components */
371 static void mpeg_motion(MpegEncContext *s,
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 is_16x8, 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, is_16x8, 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, is_16x8, 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, 0, 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, 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  av_assert2(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->sc.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) - 15 , 0) ||
540  (unsigned)src_y >= FFMAX( v_edge_pos - (motion_y & 3) - h + 1, 0)) {
541  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
542  s->linesize, s->linesize,
543  17, 17 + field_based,
544  src_x, src_y * (1 << field_based),
545  s->h_edge_pos, s->v_edge_pos);
546  ptr_y = s->sc.edge_emu_buffer;
547  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
548  uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
549  uint8_t *vbuf = ubuf + 10 * s->uvlinesize;
550  if (s->workaround_bugs & FF_BUG_IEDGE)
551  vbuf -= s->uvlinesize;
552  s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
553  s->uvlinesize, s->uvlinesize,
554  9, 9 + field_based,
555  uvsrc_x, uvsrc_y * (1 << field_based),
556  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
557  s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
558  s->uvlinesize, s->uvlinesize,
559  9, 9 + field_based,
560  uvsrc_x, uvsrc_y * (1 << field_based),
561  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
562  ptr_cb = ubuf;
563  ptr_cr = vbuf;
564  }
565  }
566 
567  if (!field_based)
568  qpix_op[0][dxy](dest_y, ptr_y, linesize);
569  else {
570  if (bottom_field) {
571  dest_y += s->linesize;
572  dest_cb += s->uvlinesize;
573  dest_cr += s->uvlinesize;
574  }
575 
576  if (field_select) {
577  ptr_y += s->linesize;
578  ptr_cb += s->uvlinesize;
579  ptr_cr += s->uvlinesize;
580  }
581  // damn interlaced mode
582  // FIXME boundary mirroring is not exactly correct here
583  qpix_op[1][dxy](dest_y, ptr_y, linesize);
584  qpix_op[1][dxy](dest_y + 8, ptr_y + 8, linesize);
585  }
586  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
587  pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
588  pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
589  }
590 }
591 
592 /**
593  * H.263 chroma 4mv motion compensation.
594  */
595 static void chroma_4mv_motion(MpegEncContext *s,
596  uint8_t *dest_cb, uint8_t *dest_cr,
597  uint8_t **ref_picture,
598  op_pixels_func *pix_op,
599  int mx, int my)
600 {
601  uint8_t *ptr;
602  int src_x, src_y, dxy, emu = 0;
603  ptrdiff_t offset;
604 
605  /* In case of 8X8, we construct a single chroma motion vector
606  * with a special rounding */
607  mx = ff_h263_round_chroma(mx);
608  my = ff_h263_round_chroma(my);
609 
610  dxy = ((my & 1) << 1) | (mx & 1);
611  mx >>= 1;
612  my >>= 1;
613 
614  src_x = s->mb_x * 8 + mx;
615  src_y = s->mb_y * 8 + my;
616  src_x = av_clip(src_x, -8, (s->width >> 1));
617  if (src_x == (s->width >> 1))
618  dxy &= ~1;
619  src_y = av_clip(src_y, -8, (s->height >> 1));
620  if (src_y == (s->height >> 1))
621  dxy &= ~2;
622 
623  offset = src_y * s->uvlinesize + src_x;
624  ptr = ref_picture[1] + offset;
625  if ((unsigned)src_x >= FFMAX((s->h_edge_pos >> 1) - (dxy & 1) - 7, 0) ||
626  (unsigned)src_y >= FFMAX((s->v_edge_pos >> 1) - (dxy >> 1) - 7, 0)) {
627  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
628  s->uvlinesize, s->uvlinesize,
629  9, 9, src_x, src_y,
630  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
631  ptr = s->sc.edge_emu_buffer;
632  emu = 1;
633  }
634  pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
635 
636  ptr = ref_picture[2] + offset;
637  if (emu) {
638  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
639  s->uvlinesize, s->uvlinesize,
640  9, 9, src_x, src_y,
641  s->h_edge_pos >> 1, s->v_edge_pos >> 1);
642  ptr = s->sc.edge_emu_buffer;
643  }
644  pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
645 }
646 
647 static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir)
648 {
649  /* fetch pixels for estimated mv 4 macroblocks ahead
650  * optimized for 64byte cache lines */
651  const int shift = s->quarter_sample ? 2 : 1;
652  const int mx = (s->mv[dir][0][0] >> shift) + 16 * s->mb_x + 8;
653  const int my = (s->mv[dir][0][1] >> shift) + 16 * s->mb_y;
654  int off = mx + (my + (s->mb_x & 3) * 4) * s->linesize + 64;
655 
656  s->vdsp.prefetch(pix[0] + off, s->linesize, 4);
657  off = (mx >> 1) + ((my >> 1) + (s->mb_x & 7)) * s->uvlinesize + 64;
658  s->vdsp.prefetch(pix[1] + off, pix[2] - pix[1], 2);
659 }
660 
661 static inline void apply_obmc(MpegEncContext *s,
662  uint8_t *dest_y,
663  uint8_t *dest_cb,
664  uint8_t *dest_cr,
665  uint8_t **ref_picture,
666  op_pixels_func (*pix_op)[4])
667 {
668  LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
669  Picture *cur_frame = &s->current_picture;
670  int mb_x = s->mb_x;
671  int mb_y = s->mb_y;
672  const int xy = mb_x + mb_y * s->mb_stride;
673  const int mot_stride = s->b8_stride;
674  const int mot_xy = mb_x * 2 + mb_y * 2 * mot_stride;
675  int mx, my, i;
676 
677  av_assert2(!s->mb_skipped);
678 
679  AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy]);
680  AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
681 
682  AV_COPY32(mv_cache[2][1],
683  cur_frame->motion_val[0][mot_xy + mot_stride]);
684  AV_COPY32(mv_cache[2][2],
685  cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
686 
687  AV_COPY32(mv_cache[3][1],
688  cur_frame->motion_val[0][mot_xy + mot_stride]);
689  AV_COPY32(mv_cache[3][2],
690  cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
691 
692  if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
693  AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
694  AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
695  } else {
696  AV_COPY32(mv_cache[0][1],
697  cur_frame->motion_val[0][mot_xy - mot_stride]);
698  AV_COPY32(mv_cache[0][2],
699  cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
700  }
701 
702  if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
703  AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
704  AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
705  } else {
706  AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
707  AV_COPY32(mv_cache[2][0],
708  cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
709  }
710 
711  if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
712  AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
713  AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
714  } else {
715  AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
716  AV_COPY32(mv_cache[2][3],
717  cur_frame->motion_val[0][mot_xy + 2 + mot_stride]);
718  }
719 
720  mx = 0;
721  my = 0;
722  for (i = 0; i < 4; i++) {
723  const int x = (i & 1) + 1;
724  const int y = (i >> 1) + 1;
725  int16_t mv[5][2] = {
726  { mv_cache[y][x][0], mv_cache[y][x][1] },
727  { mv_cache[y - 1][x][0], mv_cache[y - 1][x][1] },
728  { mv_cache[y][x - 1][0], mv_cache[y][x - 1][1] },
729  { mv_cache[y][x + 1][0], mv_cache[y][x + 1][1] },
730  { mv_cache[y + 1][x][0], mv_cache[y + 1][x][1] }
731  };
732  // FIXME cleanup
733  obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
734  ref_picture[0],
735  mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >> 1) * 8,
736  pix_op[1],
737  mv);
738 
739  mx += mv[0][0];
740  my += mv[0][1];
741  }
742  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
743  chroma_4mv_motion(s, dest_cb, dest_cr,
744  ref_picture, pix_op[1],
745  mx, my);
746 }
747 
748 static inline void apply_8x8(MpegEncContext *s,
749  uint8_t *dest_y,
750  uint8_t *dest_cb,
751  uint8_t *dest_cr,
752  int dir,
753  uint8_t **ref_picture,
754  qpel_mc_func (*qpix_op)[16],
755  op_pixels_func (*pix_op)[4])
756 {
757  int dxy, mx, my, src_x, src_y;
758  int i;
759  int mb_x = s->mb_x;
760  int mb_y = s->mb_y;
761  uint8_t *ptr, *dest;
762 
763  mx = 0;
764  my = 0;
765  if (s->quarter_sample) {
766  for (i = 0; i < 4; i++) {
767  int motion_x = s->mv[dir][i][0];
768  int motion_y = s->mv[dir][i][1];
769 
770  dxy = ((motion_y & 3) << 2) | (motion_x & 3);
771  src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
772  src_y = mb_y * 16 + (motion_y >> 2) + (i >> 1) * 8;
773 
774  /* WARNING: do no forget half pels */
775  src_x = av_clip(src_x, -16, s->width);
776  if (src_x == s->width)
777  dxy &= ~3;
778  src_y = av_clip(src_y, -16, s->height);
779  if (src_y == s->height)
780  dxy &= ~12;
781 
782  ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
783  if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 3) - 7, 0) ||
784  (unsigned)src_y >= FFMAX(s->v_edge_pos - (motion_y & 3) - 7, 0)) {
785  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
786  s->linesize, s->linesize,
787  9, 9,
788  src_x, src_y,
789  s->h_edge_pos,
790  s->v_edge_pos);
791  ptr = s->sc.edge_emu_buffer;
792  }
793  dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
794  qpix_op[1][dxy](dest, ptr, s->linesize);
795 
796  mx += s->mv[dir][i][0] / 2;
797  my += s->mv[dir][i][1] / 2;
798  }
799  } else {
800  for (i = 0; i < 4; i++) {
801  hpel_motion(s,
802  dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
803  ref_picture[0],
804  mb_x * 16 + (i & 1) * 8,
805  mb_y * 16 + (i >> 1) * 8,
806  pix_op[1],
807  s->mv[dir][i][0],
808  s->mv[dir][i][1]);
809 
810  mx += s->mv[dir][i][0];
811  my += s->mv[dir][i][1];
812  }
813  }
814 
815  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
816  chroma_4mv_motion(s, dest_cb, dest_cr,
817  ref_picture, pix_op[1], mx, my);
818 }
819 
820 /**
821  * motion compensation of a single macroblock
822  * @param s context
823  * @param dest_y luma destination pointer
824  * @param dest_cb chroma cb/u destination pointer
825  * @param dest_cr chroma cr/v destination pointer
826  * @param dir direction (0->forward, 1->backward)
827  * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
828  * @param pix_op halfpel motion compensation function (average or put normally)
829  * @param qpix_op qpel motion compensation function (average or put normally)
830  * the motion vectors are taken from s->mv and the MV type from s->mv_type
831  */
832 static av_always_inline void mpv_motion_internal(MpegEncContext *s,
833  uint8_t *dest_y,
834  uint8_t *dest_cb,
835  uint8_t *dest_cr,
836  int dir,
837  uint8_t **ref_picture,
838  op_pixels_func (*pix_op)[4],
839  qpel_mc_func (*qpix_op)[16],
840  int is_mpeg12)
841 {
842  int i;
843  int mb_y = s->mb_y;
844 
845  prefetch_motion(s, ref_picture, dir);
846 
847  if (!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B) {
848  apply_obmc(s, dest_y, dest_cb, dest_cr, ref_picture, pix_op);
849  return;
850  }
851 
852  switch (s->mv_type) {
853  case MV_TYPE_16X16:
854  if (s->mcsel) {
855  if (s->real_sprite_warping_points == 1) {
856  gmc1_motion(s, dest_y, dest_cb, dest_cr,
857  ref_picture);
858  } else {
859  gmc_motion(s, dest_y, dest_cb, dest_cr,
860  ref_picture);
861  }
862  } else if (!is_mpeg12 && s->quarter_sample) {
863  qpel_motion(s, dest_y, dest_cb, dest_cr,
864  0, 0, 0,
865  ref_picture, pix_op, qpix_op,
866  s->mv[dir][0][0], s->mv[dir][0][1], 16);
867  } else if (!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) &&
868  s->mspel && s->codec_id == AV_CODEC_ID_WMV2) {
869  ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
870  ref_picture, pix_op,
871  s->mv[dir][0][0], s->mv[dir][0][1], 16);
872  } else {
873  mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
874  ref_picture, pix_op,
875  s->mv[dir][0][0], s->mv[dir][0][1], 16, 0, mb_y);
876  }
877  break;
878  case MV_TYPE_8X8:
879  if (!is_mpeg12)
880  apply_8x8(s, dest_y, dest_cb, dest_cr,
881  dir, ref_picture, qpix_op, pix_op);
882  break;
883  case MV_TYPE_FIELD:
884  if (s->picture_structure == PICT_FRAME) {
885  if (!is_mpeg12 && s->quarter_sample) {
886  for (i = 0; i < 2; i++)
887  qpel_motion(s, dest_y, dest_cb, dest_cr,
888  1, i, s->field_select[dir][i],
889  ref_picture, pix_op, qpix_op,
890  s->mv[dir][i][0], s->mv[dir][i][1], 8);
891  } else {
892  /* top field */
893  mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
894  0, s->field_select[dir][0],
895  ref_picture, pix_op,
896  s->mv[dir][0][0], s->mv[dir][0][1], 8, mb_y);
897  /* bottom field */
898  mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
899  1, s->field_select[dir][1],
900  ref_picture, pix_op,
901  s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y);
902  }
903  } else {
904  if ( s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != AV_PICTURE_TYPE_B && !s->first_field
905  || !ref_picture[0]) {
906  ref_picture = s->current_picture_ptr->f->data;
907  }
908 
909  mpeg_motion(s, dest_y, dest_cb, dest_cr,
910  s->field_select[dir][0],
911  ref_picture, pix_op,
912  s->mv[dir][0][0], s->mv[dir][0][1], 16, 0, mb_y >> 1);
913  }
914  break;
915  case MV_TYPE_16X8:
916  for (i = 0; i < 2; i++) {
917  uint8_t **ref2picture;
918 
919  if ((s->picture_structure == s->field_select[dir][i] + 1
920  || s->pict_type == AV_PICTURE_TYPE_B || s->first_field) && ref_picture[0]) {
921  ref2picture = ref_picture;
922  } else {
923  ref2picture = s->current_picture_ptr->f->data;
924  }
925 
926  mpeg_motion(s, dest_y, dest_cb, dest_cr,
927  s->field_select[dir][i],
928  ref2picture, pix_op,
929  s->mv[dir][i][0], s->mv[dir][i][1],
930  8, 1, (mb_y & ~1) + i);
931 
932  dest_y += 16 * s->linesize;
933  dest_cb += (16 >> s->chroma_y_shift) * s->uvlinesize;
934  dest_cr += (16 >> s->chroma_y_shift) * s->uvlinesize;
935  }
936  break;
937  case MV_TYPE_DMV:
938  if (s->picture_structure == PICT_FRAME) {
939  for (i = 0; i < 2; i++) {
940  int j;
941  for (j = 0; j < 2; j++)
942  mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
943  j, j ^ i, ref_picture, pix_op,
944  s->mv[dir][2 * i + j][0],
945  s->mv[dir][2 * i + j][1], 8, mb_y);
946  pix_op = s->hdsp.avg_pixels_tab;
947  }
948  } else {
949  if (!ref_picture[0]) {
950  ref_picture = s->current_picture_ptr->f->data;
951  }
952  for (i = 0; i < 2; i++) {
953  mpeg_motion(s, dest_y, dest_cb, dest_cr,
954  s->picture_structure != i + 1,
955  ref_picture, pix_op,
956  s->mv[dir][2 * i][0], s->mv[dir][2 * i][1],
957  16, 0, mb_y >> 1);
958 
959  // after put we make avg of the same block
960  pix_op = s->hdsp.avg_pixels_tab;
961 
962  /* opposite parity is always in the same frame if this is
963  * second field */
964  if (!s->first_field) {
965  ref_picture = s->current_picture_ptr->f->data;
966  }
967  }
968  }
969  break;
970  default: av_assert2(0);
971  }
972 }
973 
974 void ff_mpv_motion(MpegEncContext *s,
975  uint8_t *dest_y, uint8_t *dest_cb,
976  uint8_t *dest_cr, int dir,
977  uint8_t **ref_picture,
978  op_pixels_func (*pix_op)[4],
979  qpel_mc_func (*qpix_op)[16])
980 {
981 #if !CONFIG_SMALL
982  if (s->out_format == FMT_MPEG1)
983  mpv_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
984  ref_picture, pix_op, qpix_op, 1);
985  else
986 #endif
987  mpv_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
988  ref_picture, pix_op, qpix_op, 0);
989 }
ff_mpv_motion
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])
Definition: mpegvideo_motion.c:974
VideoDSPContext::prefetch
void(* prefetch)(uint8_t *buf, ptrdiff_t stride, int h)
Prefetch memory into cache (if supported by hardware).
Definition: videodsp.h:76
shift
static int shift(int a, int b)
Definition: sonic.c:82
gmc_motion
static void gmc_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)
Definition: mpegvideo_motion.c:135
h
h
Definition: vp9dsp_template.c:2038
MV_TYPE_FIELD
#define MV_TYPE_FIELD
2 vectors, one per field
Definition: mpegvideo.h:269
MpegEncContext::sprite_warping_accuracy
int sprite_warping_accuracy
Definition: mpegvideo.h:403
ScratchpadContext::edge_emu_buffer
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegpicture.h:36
HpelDSPContext::avg_pixels_tab
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:68
mjpegenc.h
MJPEG encoder.
MpegEncContext::v_edge_pos
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:132
MpegEncContext::codec_id
enum AVCodecID codec_id
Definition: mpegvideo.h:112
FF_BUG_HPEL_CHROMA
#define FF_BUG_HPEL_CHROMA
Definition: avcodec.h:2573
MpegEncContext::obmc
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:366
MpegEncContext::real_sprite_warping_points
int real_sprite_warping_points
Definition: mpegvideo.h:396
qpel_mc_func
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
mpegvideo.h
mpegvideo header.
src
#define src
Definition: vp8dsp.c:254
AV_COPY32
#define AV_COPY32(d, s)
Definition: intreadwrite.h:586
MpegEncContext::chroma_x_shift
int chroma_x_shift
Definition: mpegvideo.h:485
MpegEncContext::field_select
int field_select[2][2]
Definition: mpegvideo.h:277
VideoDSPContext::emulated_edge_mc
void(* emulated_edge_mc)(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_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:63
MpegEncContext::sc
ScratchpadContext sc
Definition: mpegvideo.h:202
uint8_t
uint8_t
Definition: audio_convert.c:194
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
chroma_4mv_motion
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)
H.263 chroma 4mv motion compensation.
Definition: mpegvideo_motion.c:595
MpegEncContext::out_format
enum OutputFormat out_format
output format
Definition: mpegvideo.h:104
MpegEncContext::no_rounding
int no_rounding
apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) for B-frames rounding mode is always ...
Definition: mpegvideo.h:284
MpegEncContext::current_picture
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:180
qpeldsp.h
quarterpel DSP functions
FF_BUG_QPEL_CHROMA2
#define FF_BUG_QPEL_CHROMA2
Definition: avcodec.h:2570
AV_CODEC_FLAG_GRAY
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:869
FF_BUG_IEDGE
#define FF_BUG_IEDGE
Definition: avcodec.h:2577
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
MpegEncContext::sprite_offset
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:397
LOCAL_ALIGNED_8
#define LOCAL_ALIGNED_8(t, v,...)
Definition: internal.h:125
MpegVideoDSPContext::gmc
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
MID
#define MID
AV_CODEC_ID_MPEG1VIDEO
Definition: avcodec.h:219
prefetch_motion
static void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir)
Definition: mpegvideo_motion.c:647
MpegEncContext::mb_skipped
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:195
MpegEncContext::chroma_y_shift
int chroma_y_shift
Definition: mpegvideo.h:486
MpegVideoDSPContext::gmc1
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
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1612
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
MpegEncContext::quarter_sample
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:401
offset
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
internal.h
common internal API header
MpegEncContext::sprite_delta
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:398
op_pixels_func
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
Picture::motion_val
int16_t(*[2] motion_val)[2]
Definition: mpegpicture.h:53
MpegEncContext::current_picture_ptr
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:184
Picture
Picture.
Definition: mpegpicture.h:45
AV_CODEC_ID_WMV2
Definition: avcodec.h:236
s
#define s(width, name)
Definition: cbs_vp9.c:257
gmc1_motion
static void gmc1_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)
Definition: mpegvideo_motion.c:38
FF_BUG_QPEL_CHROMA
#define FF_BUG_QPEL_CHROMA
Definition: avcodec.h:2568
AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
OBMC_FILTER4
#define OBMC_FILTER4(x, t, l, m, r, b)
MpegEncContext::first_field
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:491
mv
static const int8_t mv[256][2]
Definition: 4xm.c:77
mpv_motion_internal
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
Definition: mpegvideo_motion.c:832
MV_TYPE_16X16
#define MV_TYPE_16X16
1 vector for the whole mb
Definition: mpegvideo.h:266
avcodec.h
Libavcodec external API header.
MpegEncContext::linesize
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:134
mpeg_motion_field
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)
Definition: mpegvideo_motion.c:389
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
MpegEncContext::height
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:100
HpelDSPContext::put_pixels_tab
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:56
MV_TYPE_16X8
#define MV_TYPE_16X8
2 vectors, one per 16x8 block
Definition: mpegvideo.h:268
mpeg_motion_internal
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 is_16x8, int mb_y)
Definition: mpegvideo_motion.c:229
h261.h
H.261 codec.
HpelDSPContext::put_no_rnd_pixels_tab
op_pixels_func put_no_rnd_pixels_tab[4][4]
Halfpel motion compensation with no rounding (a+b)>>1.
Definition: hpeldsp.h:82
Picture::f
struct AVFrame * f
Definition: mpegpicture.h:46
MpegEncContext::uvlinesize
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:135
ff_h263_round_chroma
static int ff_h263_round_chroma(int x)
Definition: motion_est.h:101
MpegEncContext::pict_type
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:212
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
MpegEncContext::mv
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
Definition: mpegvideo.h:276
MpegEncContext::b8_stride
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:131
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:81
MpegEncContext::avctx
struct AVCodecContext * avctx
Definition: mpegvideo.h:98
qpel_motion
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)
Definition: mpegvideo_motion.c:488
stride
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
MpegEncContext::mdsp
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:232
MpegEncContext::mb_stride
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:130
ff_mspel_motion
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:100
MpegEncContext::dest
uint8_t * dest[3]
Definition: mpegvideo.h:295
AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition: avutil.h:276
IS_INTRA
#define IS_INTRA(x, y)
PICT_FRAME
#define PICT_FRAME
Definition: mpegutils.h:39
MpegEncContext::picture_structure
int picture_structure
Definition: mpegvideo.h:460
mpeg_motion
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 is_16x8, int mb_y)
Definition: mpegvideo_motion.c:371
MpegEncContext::vdsp
VideoDSPContext vdsp
Definition: mpegvideo.h:236
MV_TYPE_DMV
#define MV_TYPE_DMV
2 vectors, special mpeg2 Dual Prime Vectors
Definition: mpegvideo.h:270
apply_obmc
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])
Definition: mpegvideo_motion.c:661
ScratchpadContext::obmc_scratchpad
uint8_t * obmc_scratchpad
Definition: mpegpicture.h:38
Picture::mb_type
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegpicture.h:56
MpegEncContext::workaround_bugs
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:119
av_always_inline
#define av_always_inline
Definition: attributes.h:39
ff_h261_loop_filter
void ff_h261_loop_filter(MpegEncContext *s)
Definition: h261.c:63
hpel_motion
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)
Definition: mpegvideo_motion.c:193
stride
#define stride
obmc_motion
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])
Definition: mpegvideo_motion.c:462
MV_TYPE_8X8
#define MV_TYPE_8X8
4 vectors (H.263, MPEG-4 4MV)
Definition: mpegvideo.h:267
apply_8x8
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])
Definition: mpegvideo_motion.c:748
put_obmc
static void put_obmc(uint8_t *dst, uint8_t *src[5], int stride)
Definition: mpegvideo_motion.c:409
OBMC_FILTER
#define OBMC_FILTER(x, t, l, m, r, b)
a
a
Definition: h264pred_template.c:468
MpegEncContext::hdsp
HpelDSPContext hdsp
Definition: mpegvideo.h:229
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