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vf_fftfilt.c
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1 /*
2  * Copyright (c) 2015 Arwa Arif <arwaarif1994@gmail.com>
3  * Copyright (c) 2017 Paul B Mahol
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU Lesser General Public License as published
9  * by the Free Software Foundation; either version 2.1 of the License,
10  * 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  * FFT domain filtering.
25  */
26 
27 #include "libavfilter/internal.h"
28 #include "libavutil/common.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/pixdesc.h"
32 #include "libavcodec/avfft.h"
33 #include "libavutil/eval.h"
34 
35 #define MAX_PLANES 4
36 
37 enum EvalMode {
41 };
42 
43 typedef struct FFTFILTContext {
44  const AVClass *class;
45 
46  int eval_mode;
47  int depth;
48  int nb_planes;
51 
62 
63  int dc[MAX_PLANES];
66  double *weight[MAX_PLANES];
67 
68  void (*rdft_horizontal)(struct FFTFILTContext *s, AVFrame *in, int w, int h, int plane);
69  void (*irdft_horizontal)(struct FFTFILTContext *s, AVFrame *out, int w, int h, int plane);
71 
72 static const char *const var_names[] = { "X", "Y", "W", "H", "N", NULL };
74 
75 enum { Y = 0, U, V };
76 
77 #define OFFSET(x) offsetof(FFTFILTContext, x)
78 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
79 
80 static const AVOption fftfilt_options[] = {
81  { "dc_Y", "adjust gain in Y plane", OFFSET(dc[Y]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS },
82  { "dc_U", "adjust gain in U plane", OFFSET(dc[U]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS },
83  { "dc_V", "adjust gain in V plane", OFFSET(dc[V]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS },
84  { "weight_Y", "set luminance expression in Y plane", OFFSET(weight_str[Y]), AV_OPT_TYPE_STRING, {.str = "1"}, CHAR_MIN, CHAR_MAX, FLAGS },
85  { "weight_U", "set chrominance expression in U plane", OFFSET(weight_str[U]), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, FLAGS },
86  { "weight_V", "set chrominance expression in V plane", OFFSET(weight_str[V]), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, FLAGS },
87  { "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_INIT}, 0, EVAL_MODE_NB-1, FLAGS, "eval" },
88  { "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" },
89  { "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" },
90  {NULL},
91 };
92 
93 AVFILTER_DEFINE_CLASS(fftfilt);
94 
95 static inline double lum(void *priv, double x, double y, int plane)
96 {
97  FFTFILTContext *s = priv;
98  return s->rdft_vdata[plane][(int)x * s->rdft_vlen[plane] + (int)y];
99 }
100 
101 static double weight_Y(void *priv, double x, double y) { return lum(priv, x, y, Y); }
102 static double weight_U(void *priv, double x, double y) { return lum(priv, x, y, U); }
103 static double weight_V(void *priv, double x, double y) { return lum(priv, x, y, V); }
104 
105 static void copy_rev (FFTSample *dest, int w, int w2)
106 {
107  int i;
108 
109  for (i = w; i < w + (w2-w)/2; i++)
110  dest[i] = dest[2*w - i - 1];
111 
112  for (; i < w2; i++)
113  dest[i] = dest[w2 - i];
114 }
115 
116 /*Horizontal pass - RDFT*/
117 static void rdft_horizontal8(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
118 {
119  int i, j;
120 
121  for (i = 0; i < h; i++) {
122  for (j = 0; j < w; j++)
123  s->rdft_hdata[plane][i * s->rdft_hlen[plane] + j] = *(in->data[plane] + in->linesize[plane] * i + j);
124 
125  copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
126  }
127 
128  for (i = 0; i < h; i++)
129  av_rdft_calc(s->hrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
130 }
131 
132 static void rdft_horizontal16(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
133 {
134  const uint16_t *src = (const uint16_t *)in->data[plane];
135  int linesize = in->linesize[plane] / 2;
136  int i, j;
137 
138  for (i = 0; i < h; i++) {
139  for (j = 0; j < w; j++)
140  s->rdft_hdata[plane][i * s->rdft_hlen[plane] + j] = *(src + linesize * i + j);
141 
142  copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
143  }
144 
145  for (i = 0; i < h; i++)
146  av_rdft_calc(s->hrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
147 }
148 
149 /*Vertical pass - RDFT*/
150 static void rdft_vertical(FFTFILTContext *s, int h, int plane)
151 {
152  int i, j;
153 
154  for (i = 0; i < s->rdft_hlen[plane]; i++) {
155  for (j = 0; j < h; j++)
156  s->rdft_vdata[plane][i * s->rdft_vlen[plane] + j] =
157  s->rdft_hdata[plane][j * s->rdft_hlen[plane] + i];
158  copy_rev(s->rdft_vdata[plane] + i * s->rdft_vlen[plane], h, s->rdft_vlen[plane]);
159  }
160 
161  for (i = 0; i < s->rdft_hlen[plane]; i++)
162  av_rdft_calc(s->vrdft[plane], s->rdft_vdata[plane] + i * s->rdft_vlen[plane]);
163 }
164 /*Vertical pass - IRDFT*/
165 static void irdft_vertical(FFTFILTContext *s, int h, int plane)
166 {
167  int i, j;
168 
169  for (i = 0; i < s->rdft_hlen[plane]; i++)
170  av_rdft_calc(s->ivrdft[plane], s->rdft_vdata[plane] + i * s->rdft_vlen[plane]);
171 
172  for (i = 0; i < s->rdft_hlen[plane]; i++)
173  for (j = 0; j < h; j++)
174  s->rdft_hdata[plane][j * s->rdft_hlen[plane] + i] =
175  s->rdft_vdata[plane][i * s->rdft_vlen[plane] + j];
176 }
177 
178 /*Horizontal pass - IRDFT*/
179 static void irdft_horizontal8(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
180 {
181  int i, j;
182 
183  for (i = 0; i < h; i++)
184  av_rdft_calc(s->ihrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
185 
186  for (i = 0; i < h; i++)
187  for (j = 0; j < w; j++)
188  *(out->data[plane] + out->linesize[plane] * i + j) = av_clip(s->rdft_hdata[plane][i
189  *s->rdft_hlen[plane] + j] * 4 /
190  (s->rdft_hlen[plane] *
191  s->rdft_vlen[plane]), 0, 255);
192 }
193 
194 static void irdft_horizontal16(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
195 {
196  uint16_t *dst = (uint16_t *)out->data[plane];
197  int linesize = out->linesize[plane] / 2;
198  int max = (1 << s->depth) - 1;
199  int i, j;
200 
201  for (i = 0; i < h; i++)
202  av_rdft_calc(s->ihrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
203 
204  for (i = 0; i < h; i++)
205  for (j = 0; j < w; j++)
206  *(dst + linesize * i + j) = av_clip(s->rdft_hdata[plane][i
207  *s->rdft_hlen[plane] + j] * 4 /
208  (s->rdft_hlen[plane] *
209  s->rdft_vlen[plane]), 0, max);
210 }
211 
213 {
214  FFTFILTContext *s = ctx->priv;
215  int ret = 0, plane;
216 
217  if (!s->dc[U] && !s->dc[V]) {
218  s->dc[U] = s->dc[Y];
219  s->dc[V] = s->dc[Y];
220  } else {
221  if (!s->dc[U]) s->dc[U] = s->dc[V];
222  if (!s->dc[V]) s->dc[V] = s->dc[U];
223  }
224 
225  if (!s->weight_str[U] && !s->weight_str[V]) {
226  s->weight_str[U] = av_strdup(s->weight_str[Y]);
227  s->weight_str[V] = av_strdup(s->weight_str[Y]);
228  } else {
229  if (!s->weight_str[U]) s->weight_str[U] = av_strdup(s->weight_str[V]);
230  if (!s->weight_str[V]) s->weight_str[V] = av_strdup(s->weight_str[U]);
231  }
232 
233  for (plane = 0; plane < 3; plane++) {
234  static double (*p[])(void *, double, double) = { weight_Y, weight_U, weight_V };
235  const char *const func2_names[] = {"weight_Y", "weight_U", "weight_V", NULL };
236  double (*func2[])(void *, double, double) = { weight_Y, weight_U, weight_V, p[plane], NULL };
237 
239  NULL, NULL, func2_names, func2, 0, ctx);
240  if (ret < 0)
241  break;
242  }
243  return ret;
244 }
245 
246 static void do_eval(FFTFILTContext *s, AVFilterLink *inlink, int plane)
247 {
248  double values[VAR_VARS_NB];
249  int i, j;
250 
251  values[VAR_N] = inlink->frame_count_out;
252  values[VAR_W] = s->planewidth[plane];
253  values[VAR_H] = s->planeheight[plane];
254 
255  for (i = 0; i < s->rdft_hlen[plane]; i++) {
256  values[VAR_X] = i;
257  for (j = 0; j < s->rdft_vlen[plane]; j++) {
258  values[VAR_Y] = j;
259  s->weight[plane][i * s->rdft_vlen[plane] + j] =
260  av_expr_eval(s->weight_expr[plane], values, s);
261  }
262  }
263 }
264 
265 static int config_props(AVFilterLink *inlink)
266 {
267  FFTFILTContext *s = inlink->dst->priv;
268  const AVPixFmtDescriptor *desc;
269  int rdft_hbits, rdft_vbits, i, plane;
270 
271  desc = av_pix_fmt_desc_get(inlink->format);
272  s->depth = desc->comp[0].depth;
273  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
274  s->planewidth[0] = s->planewidth[3] = inlink->w;
275  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
276  s->planeheight[0] = s->planeheight[3] = inlink->h;
277 
279 
280  for (i = 0; i < desc->nb_components; i++) {
281  int w = s->planewidth[i];
282  int h = s->planeheight[i];
283 
284  /* RDFT - Array initialization for Horizontal pass*/
285  for (rdft_hbits = 1; 1 << rdft_hbits < w*10/9; rdft_hbits++);
286  s->rdft_hbits[i] = rdft_hbits;
287  s->rdft_hlen[i] = 1 << rdft_hbits;
288  if (!(s->rdft_hdata[i] = av_malloc_array(h, s->rdft_hlen[i] * sizeof(FFTSample))))
289  return AVERROR(ENOMEM);
290 
291  if (!(s->hrdft[i] = av_rdft_init(s->rdft_hbits[i], DFT_R2C)))
292  return AVERROR(ENOMEM);
293  if (!(s->ihrdft[i] = av_rdft_init(s->rdft_hbits[i], IDFT_C2R)))
294  return AVERROR(ENOMEM);
295 
296  /* RDFT - Array initialization for Vertical pass*/
297  for (rdft_vbits = 1; 1 << rdft_vbits < h*10/9; rdft_vbits++);
298  s->rdft_vbits[i] = rdft_vbits;
299  s->rdft_vlen[i] = 1 << rdft_vbits;
300  if (!(s->rdft_vdata[i] = av_malloc_array(s->rdft_hlen[i], s->rdft_vlen[i] * sizeof(FFTSample))))
301  return AVERROR(ENOMEM);
302 
303  if (!(s->vrdft[i] = av_rdft_init(s->rdft_vbits[i], DFT_R2C)))
304  return AVERROR(ENOMEM);
305  if (!(s->ivrdft[i] = av_rdft_init(s->rdft_vbits[i], IDFT_C2R)))
306  return AVERROR(ENOMEM);
307  }
308 
309  /*Luminance value - Array initialization*/
310  for (plane = 0; plane < 3; plane++) {
311  if(!(s->weight[plane] = av_malloc_array(s->rdft_hlen[plane], s->rdft_vlen[plane] * sizeof(double))))
312  return AVERROR(ENOMEM);
313 
314  if (s->eval_mode == EVAL_MODE_INIT)
315  do_eval(s, inlink, plane);
316  }
317 
318  if (s->depth <= 8) {
321  } else if (s->depth > 8) {
324  } else {
325  return AVERROR_BUG;
326  }
327  return 0;
328 }
329 
330 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
331 {
332  AVFilterContext *ctx = inlink->dst;
333  AVFilterLink *outlink = inlink->dst->outputs[0];
334  FFTFILTContext *s = ctx->priv;
335  AVFrame *out;
336  int i, j, plane;
337 
338  out = ff_get_video_buffer(outlink, inlink->w, inlink->h);
339  if (!out) {
340  av_frame_free(&in);
341  return AVERROR(ENOMEM);
342  }
343 
344  av_frame_copy_props(out, in);
345 
346  for (plane = 0; plane < s->nb_planes; plane++) {
347  int w = s->planewidth[plane];
348  int h = s->planeheight[plane];
349 
350  if (s->eval_mode == EVAL_MODE_FRAME)
351  do_eval(s, inlink, plane);
352 
353  s->rdft_horizontal(s, in, w, h, plane);
354  rdft_vertical(s, h, plane);
355 
356  /*Change user defined parameters*/
357  for (i = 0; i < s->rdft_hlen[plane]; i++)
358  for (j = 0; j < s->rdft_vlen[plane]; j++)
359  s->rdft_vdata[plane][i * s->rdft_vlen[plane] + j] *=
360  s->weight[plane][i * s->rdft_vlen[plane] + j];
361 
362  s->rdft_vdata[plane][0] += s->rdft_hlen[plane] * s->rdft_vlen[plane] * s->dc[plane];
363 
364  irdft_vertical(s, h, plane);
365  s->irdft_horizontal(s, out, w, h, plane);
366  }
367 
368  av_frame_free(&in);
369  return ff_filter_frame(outlink, out);
370 }
371 
373 {
374  FFTFILTContext *s = ctx->priv;
375  int i;
376  for (i = 0; i < MAX_PLANES; i++) {
377  av_free(s->rdft_hdata[i]);
378  av_free(s->rdft_vdata[i]);
379  av_expr_free(s->weight_expr[i]);
380  av_free(s->weight[i]);
381  av_rdft_end(s->hrdft[i]);
382  av_rdft_end(s->ihrdft[i]);
383  av_rdft_end(s->vrdft[i]);
384  av_rdft_end(s->ivrdft[i]);
385  }
386 }
387 
389 {
390  static const enum AVPixelFormat pixel_fmts_fftfilt[] = {
405  };
406 
407  AVFilterFormats *fmts_list = ff_make_format_list(pixel_fmts_fftfilt);
408  if (!fmts_list)
409  return AVERROR(ENOMEM);
410  return ff_set_common_formats(ctx, fmts_list);
411 }
412 
413 static const AVFilterPad fftfilt_inputs[] = {
414  {
415  .name = "default",
416  .type = AVMEDIA_TYPE_VIDEO,
417  .config_props = config_props,
418  .filter_frame = filter_frame,
419  },
420  { NULL }
421 };
422 
423 static const AVFilterPad fftfilt_outputs[] = {
424  {
425  .name = "default",
426  .type = AVMEDIA_TYPE_VIDEO,
427  },
428  { NULL }
429 };
430 
432  .name = "fftfilt",
433  .description = NULL_IF_CONFIG_SMALL("Apply arbitrary expressions to pixels in frequency domain."),
434  .priv_size = sizeof(FFTFILTContext),
435  .priv_class = &fftfilt_class,
436  .inputs = fftfilt_inputs,
437  .outputs = fftfilt_outputs,
439  .init = initialize,
440  .uninit = uninit,
442 };
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2384
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
AVOption.
Definition: opt.h:246
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:382
Definition: vf_fftfilt.c:75
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2424
const char * desc
Definition: nvenc.c:65
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static void rdft_vertical(FFTFILTContext *s, int h, int plane)
Definition: vf_fftfilt.c:150
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:376
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
Definition: eval.c:679
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
#define src
Definition: vp8dsp.c:254
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
static void irdft_vertical(FFTFILTContext *s, int h, int plane)
Definition: vf_fftfilt.c:165
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
void(* irdft_horizontal)(struct FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
Definition: vf_fftfilt.c:69
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
static void rdft_horizontal16(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
Definition: vf_fftfilt.c:132
RDFTContext * hrdft[MAX_PLANES]
Definition: vf_fftfilt.c:52
const char * name
Pad name.
Definition: internal.h:60
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
int planewidth[MAX_PLANES]
Definition: vf_fftfilt.c:49
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
#define av_cold
Definition: attributes.h:82
AVOptions.
static void irdft_horizontal8(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
Definition: vf_fftfilt.c:179
size_t rdft_vlen[MAX_PLANES]
Definition: vf_fftfilt.c:59
static void copy_rev(FFTSample *dest, int w, int w2)
Definition: vf_fftfilt.c:105
Definition: eval.c:157
FFTSample * rdft_vdata[MAX_PLANES]
Definition: vf_fftfilt.c:61
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_PIX_FMT_YUV444P16
Definition: pixfmt.h:385
AVFILTER_DEFINE_CLASS(fftfilt)
#define flags(name, subs,...)
Definition: cbs_h2645.c:263
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:377
static const char *const var_names[]
Definition: vf_fftfilt.c:72
static const AVFilterPad fftfilt_inputs[]
Definition: vf_fftfilt.c:413
A filter pad used for either input or output.
Definition: internal.h:54
Definition: vf_fftfilt.c:75
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
size_t rdft_hlen[MAX_PLANES]
Definition: vf_fftfilt.c:58
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
static void rdft_horizontal8(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
Definition: vf_fftfilt.c:117
void * priv
private data for use by the filter
Definition: avfilter.h:353
static void irdft_horizontal16(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
Definition: vf_fftfilt.c:194
Definition: avfft.h:73
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:375
float FFTSample
Definition: avfft.h:35
static double weight_V(void *priv, double x, double y)
Definition: vf_fftfilt.c:103
void av_rdft_calc(RDFTContext *s, FFTSample *data)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
static const AVOption fftfilt_options[]
Definition: vf_fftfilt.c:80
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:370
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
int rdft_vbits[MAX_PLANES]
Definition: vf_fftfilt.c:57
char * weight_str[MAX_PLANES]
Definition: vf_fftfilt.c:64
static double lum(void *priv, double x, double y, int plane)
Definition: vf_fftfilt.c:95
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
uint8_t w
Definition: llviddspenc.c:38
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
AVFormatContext * ctx
Definition: movenc.c:48
#define OFFSET(x)
Definition: vf_fftfilt.c:77
#define FLAGS
Definition: vf_fftfilt.c:78
#define s(width, name)
Definition: cbs_vp9.c:257
Definition: avfft.h:72
void av_rdft_end(RDFTContext *s)
RDFTContext * av_rdft_init(int nbits, enum RDFTransformType trans)
Set up a real FFT.
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:371
EvalMode
Definition: af_volume.h:39
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
int planeheight[MAX_PLANES]
Definition: vf_fftfilt.c:50
RDFTContext * vrdft[MAX_PLANES]
Definition: vf_fftfilt.c:53
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:383
Definition: vf_fftfilt.c:75
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:380
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:334
static void do_eval(FFTFILTContext *s, AVFilterLink *inlink, int plane)
Definition: vf_fftfilt.c:246
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
double * weight[MAX_PLANES]
Definition: vf_fftfilt.c:66
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
FFT functions.
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
static int config_props(AVFilterLink *inlink)
Definition: vf_fftfilt.c:265
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:372
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static double weight_U(void *priv, double x, double y)
Definition: vf_fftfilt.c:102
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:369
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static int query_formats(AVFilterContext *ctx)
Definition: vf_fftfilt.c:388
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:381
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:373
AVFilter ff_vf_fftfilt
Definition: vf_fftfilt.c:431
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:379
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
int rdft_hbits[MAX_PLANES]
Definition: vf_fftfilt.c:56
static double weight_Y(void *priv, double x, double y)
Definition: vf_fftfilt.c:101
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_fftfilt.c:372
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
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_fftfilt.c:330
int dc[MAX_PLANES]
Definition: vf_fftfilt.c:63
AVExpr * weight_expr[MAX_PLANES]
Definition: vf_fftfilt.c:65
void(* rdft_horizontal)(struct FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
Definition: vf_fftfilt.c:68
#define av_free(p)
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:734
FFTSample * rdft_hdata[MAX_PLANES]
Definition: vf_fftfilt.c:60
A list of supported formats for one end of a filter link.
Definition: formats.h:64
static const AVFilterPad fftfilt_outputs[]
Definition: vf_fftfilt.c:423
An instance of a filter.
Definition: avfilter.h:338
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-> dc
RDFTContext * ihrdft[MAX_PLANES]
Definition: vf_fftfilt.c:54
FILE * out
Definition: movenc.c:54
static av_cold int initialize(AVFilterContext *ctx)
Definition: vf_fftfilt.c:212
#define av_malloc_array(a, b)
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:384
for(j=16;j >0;--j)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:652
RDFTContext * ivrdft[MAX_PLANES]
Definition: vf_fftfilt.c:55
simple arithmetic expression evaluator
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
#define MAX_PLANES
Definition: vf_fftfilt.c:35