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vf_deshake.c
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1 /*
2  * Copyright (C) 2010 Georg Martius <georg.martius@web.de>
3  * Copyright (C) 2010 Daniel G. Taylor <dan@programmer-art.org>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * fast deshake / depan video filter
25  *
26  * SAD block-matching motion compensation to fix small changes in
27  * horizontal and/or vertical shift. This filter helps remove camera shake
28  * from hand-holding a camera, bumping a tripod, moving on a vehicle, etc.
29  *
30  * Algorithm:
31  * - For each frame with one previous reference frame
32  * - For each block in the frame
33  * - If contrast > threshold then find likely motion vector
34  * - For all found motion vectors
35  * - Find most common, store as global motion vector
36  * - Find most likely rotation angle
37  * - Transform image along global motion
38  *
39  * TODO:
40  * - Fill frame edges based on previous/next reference frames
41  * - Fill frame edges by stretching image near the edges?
42  * - Can this be done quickly and look decent?
43  *
44  * Dark Shikari links to http://wiki.videolan.org/SoC_x264_2010#GPU_Motion_Estimation_2
45  * for an algorithm similar to what could be used here to get the gmv
46  * It requires only a couple diamond searches + fast downscaling
47  *
48  * Special thanks to Jason Kotenko for his help with the algorithm and my
49  * inability to see simple errors in C code.
50  */
51 
52 #include "avfilter.h"
53 #include "formats.h"
54 #include "internal.h"
55 #include "video.h"
56 #include "libavutil/common.h"
57 #include "libavutil/mem.h"
58 #include "libavutil/opt.h"
59 #include "libavutil/pixdesc.h"
60 #include "libavutil/qsort.h"
61 
62 #include "deshake.h"
63 #include "deshake_opencl.h"
64 
65 #define OFFSET(x) offsetof(DeshakeContext, x)
66 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
67 
68 static const AVOption deshake_options[] = {
69  { "x", "set x for the rectangular search area", OFFSET(cx), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
70  { "y", "set y for the rectangular search area", OFFSET(cy), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
71  { "w", "set width for the rectangular search area", OFFSET(cw), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
72  { "h", "set height for the rectangular search area", OFFSET(ch), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
73  { "rx", "set x for the rectangular search area", OFFSET(rx), AV_OPT_TYPE_INT, {.i64=16}, 0, MAX_R, .flags = FLAGS },
74  { "ry", "set y for the rectangular search area", OFFSET(ry), AV_OPT_TYPE_INT, {.i64=16}, 0, MAX_R, .flags = FLAGS },
75  { "edge", "set edge mode", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=FILL_MIRROR}, FILL_BLANK, FILL_COUNT-1, FLAGS, "edge"},
76  { "blank", "fill zeroes at blank locations", 0, AV_OPT_TYPE_CONST, {.i64=FILL_BLANK}, INT_MIN, INT_MAX, FLAGS, "edge" },
77  { "original", "original image at blank locations", 0, AV_OPT_TYPE_CONST, {.i64=FILL_ORIGINAL}, INT_MIN, INT_MAX, FLAGS, "edge" },
78  { "clamp", "extruded edge value at blank locations", 0, AV_OPT_TYPE_CONST, {.i64=FILL_CLAMP}, INT_MIN, INT_MAX, FLAGS, "edge" },
79  { "mirror", "mirrored edge at blank locations", 0, AV_OPT_TYPE_CONST, {.i64=FILL_MIRROR}, INT_MIN, INT_MAX, FLAGS, "edge" },
80  { "blocksize", "set motion search blocksize", OFFSET(blocksize), AV_OPT_TYPE_INT, {.i64=8}, 4, 128, .flags = FLAGS },
81  { "contrast", "set contrast threshold for blocks", OFFSET(contrast), AV_OPT_TYPE_INT, {.i64=125}, 1, 255, .flags = FLAGS },
82  { "search", "set search strategy", OFFSET(search), AV_OPT_TYPE_INT, {.i64=EXHAUSTIVE}, EXHAUSTIVE, SEARCH_COUNT-1, FLAGS, "smode" },
83  { "exhaustive", "exhaustive search", 0, AV_OPT_TYPE_CONST, {.i64=EXHAUSTIVE}, INT_MIN, INT_MAX, FLAGS, "smode" },
84  { "less", "less exhaustive search", 0, AV_OPT_TYPE_CONST, {.i64=SMART_EXHAUSTIVE}, INT_MIN, INT_MAX, FLAGS, "smode" },
85  { "filename", "set motion search detailed log file name", OFFSET(filename), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
86  { "opencl", "use OpenCL filtering capabilities", OFFSET(opencl), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, .flags = FLAGS },
87  { NULL }
88 };
89 
90 AVFILTER_DEFINE_CLASS(deshake);
91 
92 static int cmp(const void *a, const void *b)
93 {
94  return FFDIFFSIGN(*(const double *)a, *(const double *)b);
95 }
96 
97 /**
98  * Cleaned mean (cuts off 20% of values to remove outliers and then averages)
99  */
100 static double clean_mean(double *values, int count)
101 {
102  double mean = 0;
103  int cut = count / 5;
104  int x;
105 
106  AV_QSORT(values, count, double, cmp);
107 
108  for (x = cut; x < count - cut; x++) {
109  mean += values[x];
110  }
111 
112  return mean / (count - cut * 2);
113 }
114 
115 /**
116  * Find the most likely shift in motion between two frames for a given
117  * macroblock. Test each block against several shifts given by the rx
118  * and ry attributes. Searches using a simple matrix of those shifts and
119  * chooses the most likely shift by the smallest difference in blocks.
120  */
122  uint8_t *src2, int cx, int cy, int stride,
124 {
125  int x, y;
126  int diff;
127  int smallest = INT_MAX;
128  int tmp, tmp2;
129 
130  #define CMP(i, j) deshake->sad(src1 + cy * stride + cx, stride,\
131  src2 + (j) * stride + (i), stride)
132 
133  if (deshake->search == EXHAUSTIVE) {
134  // Compare every possible position - this is sloooow!
135  for (y = -deshake->ry; y <= deshake->ry; y++) {
136  for (x = -deshake->rx; x <= deshake->rx; x++) {
137  diff = CMP(cx - x, cy - y);
138  if (diff < smallest) {
139  smallest = diff;
140  mv->x = x;
141  mv->y = y;
142  }
143  }
144  }
145  } else if (deshake->search == SMART_EXHAUSTIVE) {
146  // Compare every other possible position and find the best match
147  for (y = -deshake->ry + 1; y < deshake->ry; y += 2) {
148  for (x = -deshake->rx + 1; x < deshake->rx; x += 2) {
149  diff = CMP(cx - x, cy - y);
150  if (diff < smallest) {
151  smallest = diff;
152  mv->x = x;
153  mv->y = y;
154  }
155  }
156  }
157 
158  // Hone in on the specific best match around the match we found above
159  tmp = mv->x;
160  tmp2 = mv->y;
161 
162  for (y = tmp2 - 1; y <= tmp2 + 1; y++) {
163  for (x = tmp - 1; x <= tmp + 1; x++) {
164  if (x == tmp && y == tmp2)
165  continue;
166 
167  diff = CMP(cx - x, cy - y);
168  if (diff < smallest) {
169  smallest = diff;
170  mv->x = x;
171  mv->y = y;
172  }
173  }
174  }
175  }
176 
177  if (smallest > 512) {
178  mv->x = -1;
179  mv->y = -1;
180  }
181  emms_c();
182  //av_log(NULL, AV_LOG_ERROR, "%d\n", smallest);
183  //av_log(NULL, AV_LOG_ERROR, "Final: (%d, %d) = %d x %d\n", cx, cy, mv->x, mv->y);
184 }
185 
186 /**
187  * Find the contrast of a given block. When searching for global motion we
188  * really only care about the high contrast blocks, so using this method we
189  * can actually skip blocks we don't care much about.
190  */
191 static int block_contrast(uint8_t *src, int x, int y, int stride, int blocksize)
192 {
193  int highest = 0;
194  int lowest = 255;
195  int i, j, pos;
196 
197  for (i = 0; i <= blocksize * 2; i++) {
198  // We use a width of 16 here to match the sad function
199  for (j = 0; j <= 15; j++) {
200  pos = (y - i) * stride + (x - j);
201  if (src[pos] < lowest)
202  lowest = src[pos];
203  else if (src[pos] > highest) {
204  highest = src[pos];
205  }
206  }
207  }
208 
209  return highest - lowest;
210 }
211 
212 /**
213  * Find the rotation for a given block.
214  */
215 static double block_angle(int x, int y, int cx, int cy, IntMotionVector *shift)
216 {
217  double a1, a2, diff;
218 
219  a1 = atan2(y - cy, x - cx);
220  a2 = atan2(y - cy + shift->y, x - cx + shift->x);
221 
222  diff = a2 - a1;
223 
224  return (diff > M_PI) ? diff - 2 * M_PI :
225  (diff < -M_PI) ? diff + 2 * M_PI :
226  diff;
227 }
228 
229 /**
230  * Find the estimated global motion for a scene given the most likely shift
231  * for each block in the frame. The global motion is estimated to be the
232  * same as the motion from most blocks in the frame, so if most blocks
233  * move one pixel to the right and two pixels down, this would yield a
234  * motion vector (1, -2).
235  */
236 static void find_motion(DeshakeContext *deshake, uint8_t *src1, uint8_t *src2,
237  int width, int height, int stride, Transform *t)
238 {
239  int x, y;
240  IntMotionVector mv = {0, 0};
241  int count_max_value = 0;
242  int contrast;
243 
244  int pos;
245  int center_x = 0, center_y = 0;
246  double p_x, p_y;
247 
248  av_fast_malloc(&deshake->angles, &deshake->angles_size, width * height / (16 * deshake->blocksize) * sizeof(*deshake->angles));
249 
250  // Reset counts to zero
251  for (x = 0; x < deshake->rx * 2 + 1; x++) {
252  for (y = 0; y < deshake->ry * 2 + 1; y++) {
253  deshake->counts[x][y] = 0;
254  }
255  }
256 
257  pos = 0;
258  // Find motion for every block and store the motion vector in the counts
259  for (y = deshake->ry; y < height - deshake->ry - (deshake->blocksize * 2); y += deshake->blocksize * 2) {
260  // We use a width of 16 here to match the sad function
261  for (x = deshake->rx; x < width - deshake->rx - 16; x += 16) {
262  // If the contrast is too low, just skip this block as it probably
263  // won't be very useful to us.
264  contrast = block_contrast(src2, x, y, stride, deshake->blocksize);
265  if (contrast > deshake->contrast) {
266  //av_log(NULL, AV_LOG_ERROR, "%d\n", contrast);
267  find_block_motion(deshake, src1, src2, x, y, stride, &mv);
268  if (mv.x != -1 && mv.y != -1) {
269  deshake->counts[mv.x + deshake->rx][mv.y + deshake->ry] += 1;
270  if (x > deshake->rx && y > deshake->ry)
271  deshake->angles[pos++] = block_angle(x, y, 0, 0, &mv);
272 
273  center_x += mv.x;
274  center_y += mv.y;
275  }
276  }
277  }
278  }
279 
280  if (pos) {
281  center_x /= pos;
282  center_y /= pos;
283  t->angle = clean_mean(deshake->angles, pos);
284  if (t->angle < 0.001)
285  t->angle = 0;
286  } else {
287  t->angle = 0;
288  }
289 
290  // Find the most common motion vector in the frame and use it as the gmv
291  for (y = deshake->ry * 2; y >= 0; y--) {
292  for (x = 0; x < deshake->rx * 2 + 1; x++) {
293  //av_log(NULL, AV_LOG_ERROR, "%5d ", deshake->counts[x][y]);
294  if (deshake->counts[x][y] > count_max_value) {
295  t->vec.x = x - deshake->rx;
296  t->vec.y = y - deshake->ry;
297  count_max_value = deshake->counts[x][y];
298  }
299  }
300  //av_log(NULL, AV_LOG_ERROR, "\n");
301  }
302 
303  p_x = (center_x - width / 2.0);
304  p_y = (center_y - height / 2.0);
305  t->vec.x += (cos(t->angle)-1)*p_x - sin(t->angle)*p_y;
306  t->vec.y += sin(t->angle)*p_x + (cos(t->angle)-1)*p_y;
307 
308  // Clamp max shift & rotation?
309  t->vec.x = av_clipf(t->vec.x, -deshake->rx * 2, deshake->rx * 2);
310  t->vec.y = av_clipf(t->vec.y, -deshake->ry * 2, deshake->ry * 2);
311  t->angle = av_clipf(t->angle, -0.1, 0.1);
312 
313  //av_log(NULL, AV_LOG_ERROR, "%d x %d\n", avg->x, avg->y);
314 }
315 
317  int width, int height, int cw, int ch,
318  const float *matrix_y, const float *matrix_uv,
320  enum FillMethod fill, AVFrame *in, AVFrame *out)
321 {
322  int i = 0, ret = 0;
323  const float *matrixs[3];
324  int plane_w[3], plane_h[3];
325  matrixs[0] = matrix_y;
326  matrixs[1] = matrixs[2] = matrix_uv;
327  plane_w[0] = width;
328  plane_w[1] = plane_w[2] = cw;
329  plane_h[0] = height;
330  plane_h[1] = plane_h[2] = ch;
331 
332  for (i = 0; i < 3; i++) {
333  // Transform the luma and chroma planes
334  ret = avfilter_transform(in->data[i], out->data[i], in->linesize[i], out->linesize[i],
335  plane_w[i], plane_h[i], matrixs[i], interpolate, fill);
336  if (ret < 0)
337  return ret;
338  }
339  return ret;
340 }
341 
343 {
344  int ret;
345  DeshakeContext *deshake = ctx->priv;
346 
347  deshake->sad = av_pixelutils_get_sad_fn(4, 4, 1, deshake); // 16x16, 2nd source unaligned
348  if (!deshake->sad)
349  return AVERROR(EINVAL);
350 
351  deshake->refcount = 20; // XXX: add to options?
352  deshake->blocksize /= 2;
353  deshake->blocksize = av_clip(deshake->blocksize, 4, 128);
354 
355  if (deshake->rx % 16) {
356  av_log(ctx, AV_LOG_ERROR, "rx must be a multiple of 16\n");
357  return AVERROR_PATCHWELCOME;
358  }
359 
360  if (deshake->filename)
361  deshake->fp = fopen(deshake->filename, "w");
362  if (deshake->fp)
363  fwrite("Ori x, Avg x, Fin x, Ori y, Avg y, Fin y, Ori angle, Avg angle, Fin angle, Ori zoom, Avg zoom, Fin zoom\n", sizeof(char), 104, deshake->fp);
364 
365  // Quadword align left edge of box for MMX code, adjust width if necessary
366  // to keep right margin
367  if (deshake->cx > 0) {
368  deshake->cw += deshake->cx - (deshake->cx & ~15);
369  deshake->cx &= ~15;
370  }
371  deshake->transform = deshake_transform_c;
372  if (!CONFIG_OPENCL && deshake->opencl) {
373  av_log(ctx, AV_LOG_ERROR, "OpenCL support was not enabled in this build, cannot be selected\n");
374  return AVERROR(EINVAL);
375  }
376 
377  if (CONFIG_OPENCL && deshake->opencl) {
378  deshake->transform = ff_opencl_transform;
379  ret = ff_opencl_deshake_init(ctx);
380  if (ret < 0)
381  return ret;
382  }
383  av_log(ctx, AV_LOG_VERBOSE, "cx: %d, cy: %d, cw: %d, ch: %d, rx: %d, ry: %d, edge: %d blocksize: %d contrast: %d search: %d\n",
384  deshake->cx, deshake->cy, deshake->cw, deshake->ch,
385  deshake->rx, deshake->ry, deshake->edge, deshake->blocksize * 2, deshake->contrast, deshake->search);
386 
387  return 0;
388 }
389 
391 {
392  static const enum AVPixelFormat pix_fmts[] = {
396  };
397  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
398  if (!fmts_list)
399  return AVERROR(ENOMEM);
400  return ff_set_common_formats(ctx, fmts_list);
401 }
402 
403 static int config_props(AVFilterLink *link)
404 {
405  DeshakeContext *deshake = link->dst->priv;
406 
407  deshake->ref = NULL;
408  deshake->last.vec.x = 0;
409  deshake->last.vec.y = 0;
410  deshake->last.angle = 0;
411  deshake->last.zoom = 0;
412 
413  return 0;
414 }
415 
417 {
418  DeshakeContext *deshake = ctx->priv;
419  if (CONFIG_OPENCL && deshake->opencl) {
421  }
422  av_frame_free(&deshake->ref);
423  av_freep(&deshake->angles);
424  deshake->angles_size = 0;
425  if (deshake->fp)
426  fclose(deshake->fp);
427 }
428 
429 static int filter_frame(AVFilterLink *link, AVFrame *in)
430 {
431  DeshakeContext *deshake = link->dst->priv;
432  AVFilterLink *outlink = link->dst->outputs[0];
433  AVFrame *out;
434  Transform t = {{0},0}, orig = {{0},0};
435  float matrix_y[9], matrix_uv[9];
436  float alpha = 2.0 / deshake->refcount;
437  char tmp[256];
438  int ret = 0;
440  const int chroma_width = AV_CEIL_RSHIFT(link->w, desc->log2_chroma_w);
441  const int chroma_height = AV_CEIL_RSHIFT(link->h, desc->log2_chroma_h);
442 
443  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
444  if (!out) {
445  av_frame_free(&in);
446  return AVERROR(ENOMEM);
447  }
448  av_frame_copy_props(out, in);
449 
450  if (CONFIG_OPENCL && deshake->opencl) {
451  ret = ff_opencl_deshake_process_inout_buf(link->dst,in, out);
452  if (ret < 0)
453  return ret;
454  }
455 
456  if (deshake->cx < 0 || deshake->cy < 0 || deshake->cw < 0 || deshake->ch < 0) {
457  // Find the most likely global motion for the current frame
458  find_motion(deshake, (deshake->ref == NULL) ? in->data[0] : deshake->ref->data[0], in->data[0], link->w, link->h, in->linesize[0], &t);
459  } else {
460  uint8_t *src1 = (deshake->ref == NULL) ? in->data[0] : deshake->ref->data[0];
461  uint8_t *src2 = in->data[0];
462 
463  deshake->cx = FFMIN(deshake->cx, link->w);
464  deshake->cy = FFMIN(deshake->cy, link->h);
465 
466  if ((unsigned)deshake->cx + (unsigned)deshake->cw > link->w) deshake->cw = link->w - deshake->cx;
467  if ((unsigned)deshake->cy + (unsigned)deshake->ch > link->h) deshake->ch = link->h - deshake->cy;
468 
469  // Quadword align right margin
470  deshake->cw &= ~15;
471 
472  src1 += deshake->cy * in->linesize[0] + deshake->cx;
473  src2 += deshake->cy * in->linesize[0] + deshake->cx;
474 
475  find_motion(deshake, src1, src2, deshake->cw, deshake->ch, in->linesize[0], &t);
476  }
477 
478 
479  // Copy transform so we can output it later to compare to the smoothed value
480  orig.vec.x = t.vec.x;
481  orig.vec.y = t.vec.y;
482  orig.angle = t.angle;
483  orig.zoom = t.zoom;
484 
485  // Generate a one-sided moving exponential average
486  deshake->avg.vec.x = alpha * t.vec.x + (1.0 - alpha) * deshake->avg.vec.x;
487  deshake->avg.vec.y = alpha * t.vec.y + (1.0 - alpha) * deshake->avg.vec.y;
488  deshake->avg.angle = alpha * t.angle + (1.0 - alpha) * deshake->avg.angle;
489  deshake->avg.zoom = alpha * t.zoom + (1.0 - alpha) * deshake->avg.zoom;
490 
491  // Remove the average from the current motion to detect the motion that
492  // is not on purpose, just as jitter from bumping the camera
493  t.vec.x -= deshake->avg.vec.x;
494  t.vec.y -= deshake->avg.vec.y;
495  t.angle -= deshake->avg.angle;
496  t.zoom -= deshake->avg.zoom;
497 
498  // Invert the motion to undo it
499  t.vec.x *= -1;
500  t.vec.y *= -1;
501  t.angle *= -1;
502 
503  // Write statistics to file
504  if (deshake->fp) {
505  snprintf(tmp, 256, "%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f\n", orig.vec.x, deshake->avg.vec.x, t.vec.x, orig.vec.y, deshake->avg.vec.y, t.vec.y, orig.angle, deshake->avg.angle, t.angle, orig.zoom, deshake->avg.zoom, t.zoom);
506  fwrite(tmp, sizeof(char), strlen(tmp), deshake->fp);
507  }
508 
509  // Turn relative current frame motion into absolute by adding it to the
510  // last absolute motion
511  t.vec.x += deshake->last.vec.x;
512  t.vec.y += deshake->last.vec.y;
513  t.angle += deshake->last.angle;
514  t.zoom += deshake->last.zoom;
515 
516  // Shrink motion by 10% to keep things centered in the camera frame
517  t.vec.x *= 0.9;
518  t.vec.y *= 0.9;
519  t.angle *= 0.9;
520 
521  // Store the last absolute motion information
522  deshake->last.vec.x = t.vec.x;
523  deshake->last.vec.y = t.vec.y;
524  deshake->last.angle = t.angle;
525  deshake->last.zoom = t.zoom;
526 
527  // Generate a luma transformation matrix
528  avfilter_get_matrix(t.vec.x, t.vec.y, t.angle, 1.0 + t.zoom / 100.0, matrix_y);
529  // Generate a chroma transformation matrix
530  avfilter_get_matrix(t.vec.x / (link->w / chroma_width), t.vec.y / (link->h / chroma_height), t.angle, 1.0 + t.zoom / 100.0, matrix_uv);
531  // Transform the luma and chroma planes
532  ret = deshake->transform(link->dst, link->w, link->h, chroma_width, chroma_height,
533  matrix_y, matrix_uv, INTERPOLATE_BILINEAR, deshake->edge, in, out);
534 
535  // Cleanup the old reference frame
536  av_frame_free(&deshake->ref);
537 
538  if (ret < 0)
539  return ret;
540 
541  // Store the current frame as the reference frame for calculating the
542  // motion of the next frame
543  deshake->ref = in;
544 
545  return ff_filter_frame(outlink, out);
546 }
547 
548 static const AVFilterPad deshake_inputs[] = {
549  {
550  .name = "default",
551  .type = AVMEDIA_TYPE_VIDEO,
552  .filter_frame = filter_frame,
553  .config_props = config_props,
554  },
555  { NULL }
556 };
557 
558 static const AVFilterPad deshake_outputs[] = {
559  {
560  .name = "default",
561  .type = AVMEDIA_TYPE_VIDEO,
562  },
563  { NULL }
564 };
565 
567  .name = "deshake",
568  .description = NULL_IF_CONFIG_SMALL("Stabilize shaky video."),
569  .priv_size = sizeof(DeshakeContext),
570  .init = init,
571  .uninit = uninit,
573  .inputs = deshake_inputs,
574  .outputs = deshake_outputs,
575  .priv_class = &deshake_class,
576 };
#define NULL
Definition: coverity.c:32
static int shift(int a, int b)
Definition: sonic.c:82
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2266
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
#define OFFSET(x)
Definition: vf_deshake.c:65
AVOption.
Definition: opt.h:245
int ry
Maximum vertical shift.
Definition: deshake.h:83
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
Main libavfilter public API header.
Memory handling functions.
#define FLAGS
Definition: vf_deshake.c:66
const char * desc
Definition: nvenc.c:101
int y
Vertical shift.
Definition: deshake.h:42
const char * b
Definition: vf_curves.c:113
unsigned angles_size
Definition: deshake.h:80
#define a1
Definition: regdef.h:47
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
double angle
Angle of rotation.
Definition: deshake.h:52
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
InterpolateMethod
Definition: transform.h:39
const char * name
Pad name.
Definition: internal.h:59
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1189
double zoom
Zoom percentage.
Definition: deshake.h:53
uint8_t
#define av_cold
Definition: attributes.h:82
static float search(FOCContext *foc, int pass, int maxpass, int xmin, int xmax, int ymin, int ymax, int *best_x, int *best_y, float best_score)
Definition: vf_find_rect.c:156
AVOptions.
static void find_block_motion(DeshakeContext *deshake, uint8_t *src1, uint8_t *src2, int cx, int cy, int stride, IntMotionVector *mv)
Find the most likely shift in motion between two frames for a given macroblock.
Definition: vf_deshake.c:121
int avfilter_transform(const uint8_t *src, uint8_t *dst, int src_stride, int dst_stride, int width, int height, const float *matrix, enum InterpolateMethod interpolate, enum FillMethod fill)
Do an affine transformation with the given interpolation method.
Definition: transform.c:139
static double clean_mean(double *values, int count)
Cleaned mean (cuts off 20% of values to remove outliers and then averages)
Definition: vf_deshake.c:100
static void interpolate(float *out, float v1, float v2, int size)
Definition: twinvq.c:84
#define height
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
int blocksize
Size of blocks to compare.
Definition: deshake.h:85
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
FILE * fp
Definition: deshake.h:91
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:53
int refcount
Number of reference frames (defines averaging window)
Definition: deshake.h:90
int rx
Maximum horizontal shift.
Definition: deshake.h:82
int ff_opencl_transform(AVFilterContext *ctx, int width, int height, int cw, int ch, const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate, enum FillMethod fill, AVFrame *in, AVFrame *out)
static double alpha(void *priv, double x, double y)
Definition: vf_geq.c:99
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#define AVERROR(e)
Definition: error.h:43
AVFilter ff_vf_deshake
Definition: vf_deshake.c:566
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:154
AVFILTER_DEFINE_CLASS(deshake)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
char * filename
Motion search detailed log filename.
Definition: deshake.h:97
void * priv
private data for use by the filter
Definition: avfilter.h:322
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_deshake.c:429
double x
Horizontal shift.
Definition: deshake.h:46
static int query_formats(AVFilterContext *ctx)
Definition: vf_deshake.c:390
av_pixelutils_sad_fn sad
Sum of the absolute difference function.
Definition: deshake.h:88
GLsizei count
Definition: opengl_enc.c:109
static const AVFilterPad deshake_inputs[]
Definition: vf_deshake.c:548
int contrast
Contrast threshold.
Definition: deshake.h:86
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
Definition: mem.c:499
#define FFDIFFSIGN(x, y)
Comparator.
Definition: common.h:92
static double block_angle(int x, int y, int cx, int cy, IntMotionVector *shift)
Find the rotation for a given block.
Definition: vf_deshake.c:215
static int deshake_transform_c(AVFilterContext *ctx, int width, int height, int cw, int ch, const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate, enum FillMethod fill, AVFrame *in, AVFrame *out)
Definition: vf_deshake.c:316
FillMethod
Definition: transform.h:51
#define FFMIN(a, b)
Definition: common.h:96
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
#define width
static void find_motion(DeshakeContext *deshake, uint8_t *src1, uint8_t *src2, int width, int height, int stride, Transform *t)
Find the estimated global motion for a scene given the most likely shift for each block in the frame...
Definition: vf_deshake.c:236
AVFormatContext * ctx
Definition: movenc.c:48
#define a2
Definition: regdef.h:48
int edge
Edge fill method.
Definition: deshake.h:84
int search
Motion search method.
Definition: deshake.h:87
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define src
Definition: vp9dsp.c:530
static const AVOption deshake_options[]
Definition: vf_deshake.c:68
double y
Vertical shift.
Definition: deshake.h:47
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
static const int8_t mv[256][2]
Definition: 4xm.c:77
Search all possible positions.
Definition: deshake.h:35
int ff_opencl_deshake_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
#define src1
Definition: h264pred.c:139
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
double * angles
< Scratch buffer for motion search
Definition: deshake.h:79
static int block_contrast(uint8_t *src, int x, int y, int stride, int blocksize)
Find the contrast of a given block.
Definition: vf_deshake.c:191
AVFrame * ref
Previous frame.
Definition: deshake.h:81
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
Transform avg
Definition: deshake.h:92
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
Search most possible positions (faster)
Definition: deshake.h:36
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, int aligned, void *log_ctx)
Get a potentially optimized pointer to a Sum-of-absolute-differences function (see the av_pixelutils_...
Definition: pixelutils.c:64
Filter definition.
Definition: avfilter.h:144
static int config_props(AVFilterLink *link)
Definition: vf_deshake.c:403
static av_cold int init(AVFilterContext *ctx)
Definition: vf_deshake.c:342
const char * name
Filter name.
Definition: avfilter.h:148
int(* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch, const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate, enum FillMethod fill, AVFrame *in, AVFrame *out)
Definition: deshake.h:102
static int cmp(const void *a, const void *b)
Definition: vf_deshake.c:92
#define snprintf
Definition: snprintf.h:34
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
int counts[2 *MAX_R+1][2 *MAX_R+1]
Definition: deshake.h:78
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
#define CMP(i, j)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
int cw
Crop motion search to this box.
Definition: deshake.h:93
Transform last
Transform from last frame.
Definition: deshake.h:89
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
int ff_opencl_deshake_init(AVFilterContext *ctx)
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
common internal and external API header
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_YASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){intplanes=out->planar?out->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
int x
Horizontal shift.
Definition: deshake.h:41
static av_always_inline int diff(const uint32_t a, const uint32_t b)
MotionVector vec
Motion vector.
Definition: deshake.h:51
#define MAX_R
Definition: deshake.h:74
static const AVFilterPad deshake_outputs[]
Definition: vf_deshake.c:558
static uint8_t tmp[8]
Definition: des.c:38
void avfilter_get_matrix(float x_shift, float y_shift, float angle, float zoom, float *matrix)
Get an affine transformation matrix from a given translation, rotation, and zoom factor.
Definition: transform.c:106
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:307
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
#define M_PI
Definition: mathematics.h:52
internal API functions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_QSORT(p, num, type, cmp)
Quicksort This sort is fast, and fully inplace but not stable and it is possible to construct input t...
Definition: qsort.h:33
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_deshake.c:416
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:581
void ff_opencl_deshake_uninit(AVFilterContext *ctx)
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58