FFmpeg
vf_colorbalance.c
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1 /*
2  * Copyright (c) 2013 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/opt.h"
22 #include "libavutil/pixdesc.h"
23 #include "avfilter.h"
24 #include "drawutils.h"
25 #include "formats.h"
26 #include "internal.h"
27 #include "video.h"
28 
29 #define R 0
30 #define G 1
31 #define B 2
32 #define A 3
33 
34 typedef struct ThreadData {
35  AVFrame *in, *out;
36 } ThreadData;
37 
38 typedef struct Range {
39  double shadows;
40  double midtones;
41  double highlights;
42 } Range;
43 
44 typedef struct ColorBalanceContext {
45  const AVClass *class;
49 
50  uint16_t lut[3][65536];
51 
52  uint8_t rgba_map[4];
53  int step;
54 
55  int (*apply_lut)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
57 
58 #define OFFSET(x) offsetof(ColorBalanceContext, x)
59 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
60 static const AVOption colorbalance_options[] = {
61  { "rs", "set red shadows", OFFSET(cyan_red.shadows), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
62  { "gs", "set green shadows", OFFSET(magenta_green.shadows), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
63  { "bs", "set blue shadows", OFFSET(yellow_blue.shadows), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
64  { "rm", "set red midtones", OFFSET(cyan_red.midtones), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
65  { "gm", "set green midtones", OFFSET(magenta_green.midtones), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
66  { "bm", "set blue midtones", OFFSET(yellow_blue.midtones), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
67  { "rh", "set red highlights", OFFSET(cyan_red.highlights), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
68  { "gh", "set green highlights", OFFSET(magenta_green.highlights), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
69  { "bh", "set blue highlights", OFFSET(yellow_blue.highlights), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
70  { NULL }
71 };
72 
73 AVFILTER_DEFINE_CLASS(colorbalance);
74 
76 {
77  static const enum AVPixelFormat pix_fmts[] = {
92  };
93  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
94  if (!fmts_list)
95  return AVERROR(ENOMEM);
96  return ff_set_common_formats(ctx, fmts_list);
97 }
98 
99 static int apply_lut8_p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
100 {
101  ColorBalanceContext *s = ctx->priv;
102  ThreadData *td = arg;
103  AVFrame *in = td->in;
104  AVFrame *out = td->out;
105  const int slice_start = (out->height * jobnr) / nb_jobs;
106  const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
107  const uint8_t *srcg = in->data[0] + slice_start * in->linesize[0];
108  const uint8_t *srcb = in->data[1] + slice_start * in->linesize[1];
109  const uint8_t *srcr = in->data[2] + slice_start * in->linesize[2];
110  const uint8_t *srca = in->data[3] + slice_start * in->linesize[3];
111  uint8_t *dstg = out->data[0] + slice_start * out->linesize[0];
112  uint8_t *dstb = out->data[1] + slice_start * out->linesize[1];
113  uint8_t *dstr = out->data[2] + slice_start * out->linesize[2];
114  uint8_t *dsta = out->data[3] + slice_start * out->linesize[3];
115  int i, j;
116 
117  for (i = slice_start; i < slice_end; i++) {
118  for (j = 0; j < out->width; j++) {
119  dstg[j] = s->lut[G][srcg[j]];
120  dstb[j] = s->lut[B][srcb[j]];
121  dstr[j] = s->lut[R][srcr[j]];
122  if (in != out && out->linesize[3])
123  dsta[j] = srca[j];
124  }
125 
126  srcg += in->linesize[0];
127  srcb += in->linesize[1];
128  srcr += in->linesize[2];
129  srca += in->linesize[3];
130  dstg += out->linesize[0];
131  dstb += out->linesize[1];
132  dstr += out->linesize[2];
133  dsta += out->linesize[3];
134  }
135 
136  return 0;
137 }
138 
139 static int apply_lut16_p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
140 {
141  ColorBalanceContext *s = ctx->priv;
142  ThreadData *td = arg;
143  AVFrame *in = td->in;
144  AVFrame *out = td->out;
145  const int slice_start = (out->height * jobnr) / nb_jobs;
146  const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
147  const uint16_t *srcg = (const uint16_t *)in->data[0] + slice_start * in->linesize[0] / 2;
148  const uint16_t *srcb = (const uint16_t *)in->data[1] + slice_start * in->linesize[1] / 2;
149  const uint16_t *srcr = (const uint16_t *)in->data[2] + slice_start * in->linesize[2] / 2;
150  const uint16_t *srca = (const uint16_t *)in->data[3] + slice_start * in->linesize[3] / 2;
151  uint16_t *dstg = (uint16_t *)out->data[0] + slice_start * out->linesize[0] / 2;
152  uint16_t *dstb = (uint16_t *)out->data[1] + slice_start * out->linesize[1] / 2;
153  uint16_t *dstr = (uint16_t *)out->data[2] + slice_start * out->linesize[2] / 2;
154  uint16_t *dsta = (uint16_t *)out->data[3] + slice_start * out->linesize[3] / 2;
155  int i, j;
156 
157  for (i = slice_start; i < slice_end; i++) {
158  for (j = 0; j < out->width; j++) {
159  dstg[j] = s->lut[G][srcg[j]];
160  dstb[j] = s->lut[B][srcb[j]];
161  dstr[j] = s->lut[R][srcr[j]];
162  if (in != out && out->linesize[3])
163  dsta[j] = srca[j];
164  }
165 
166  srcg += in->linesize[0] / 2;
167  srcb += in->linesize[1] / 2;
168  srcr += in->linesize[2] / 2;
169  srca += in->linesize[3] / 2;
170  dstg += out->linesize[0] / 2;
171  dstb += out->linesize[1] / 2;
172  dstr += out->linesize[2] / 2;
173  dsta += out->linesize[3] / 2;
174  }
175 
176  return 0;
177 }
178 
179 static int apply_lut8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
180 {
181  ColorBalanceContext *s = ctx->priv;
182  ThreadData *td = arg;
183  AVFrame *in = td->in;
184  AVFrame *out = td->out;
185  AVFilterLink *outlink = ctx->outputs[0];
186  const int slice_start = (out->height * jobnr) / nb_jobs;
187  const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
188  const uint8_t *srcrow = in->data[0] + slice_start * in->linesize[0];
189  const uint8_t roffset = s->rgba_map[R];
190  const uint8_t goffset = s->rgba_map[G];
191  const uint8_t boffset = s->rgba_map[B];
192  const uint8_t aoffset = s->rgba_map[A];
193  const int step = s->step;
194  uint8_t *dstrow;
195  int i, j;
196 
197  dstrow = out->data[0] + slice_start * out->linesize[0];
198  for (i = slice_start; i < slice_end; i++) {
199  const uint8_t *src = srcrow;
200  uint8_t *dst = dstrow;
201 
202  for (j = 0; j < outlink->w * step; j += step) {
203  dst[j + roffset] = s->lut[R][src[j + roffset]];
204  dst[j + goffset] = s->lut[G][src[j + goffset]];
205  dst[j + boffset] = s->lut[B][src[j + boffset]];
206  if (in != out && step == 4)
207  dst[j + aoffset] = src[j + aoffset];
208  }
209 
210  srcrow += in->linesize[0];
211  dstrow += out->linesize[0];
212  }
213 
214  return 0;
215 }
216 
217 static int apply_lut16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
218 {
219  ColorBalanceContext *s = ctx->priv;
220  ThreadData *td = arg;
221  AVFrame *in = td->in;
222  AVFrame *out = td->out;
223  AVFilterLink *outlink = ctx->outputs[0];
224  const int slice_start = (out->height * jobnr) / nb_jobs;
225  const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
226  const uint16_t *srcrow = (const uint16_t *)in->data[0] + slice_start * in->linesize[0] / 2;
227  const uint8_t roffset = s->rgba_map[R];
228  const uint8_t goffset = s->rgba_map[G];
229  const uint8_t boffset = s->rgba_map[B];
230  const uint8_t aoffset = s->rgba_map[A];
231  const int step = s->step / 2;
232  uint16_t *dstrow;
233  int i, j;
234 
235  dstrow = (uint16_t *)out->data[0] + slice_start * out->linesize[0] / 2;
236  for (i = slice_start; i < slice_end; i++) {
237  const uint16_t *src = srcrow;
238  uint16_t *dst = dstrow;
239 
240  for (j = 0; j < outlink->w * step; j += step) {
241  dst[j + roffset] = s->lut[R][src[j + roffset]];
242  dst[j + goffset] = s->lut[G][src[j + goffset]];
243  dst[j + boffset] = s->lut[B][src[j + boffset]];
244  if (in != out && step == 4)
245  dst[j + aoffset] = src[j + aoffset];
246  }
247 
248  srcrow += in->linesize[0] / 2;
249  dstrow += out->linesize[0] / 2;
250  }
251 
252  return 0;
253 }
254 
255 static int config_output(AVFilterLink *outlink)
256 {
257  AVFilterContext *ctx = outlink->src;
258  ColorBalanceContext *s = ctx->priv;
260  const int depth = desc->comp[0].depth;
261  const int max = 1 << depth;
262  const int planar = av_pix_fmt_count_planes(outlink->format) > 1;
263  double *shadows, *midtones, *highlights, *buffer;
264  int i, r, g, b;
265 
266  if (max == 256 && planar) {
267  s->apply_lut = apply_lut8_p;
268  } else if (planar) {
270  } else if (max == 256) {
271  s->apply_lut = apply_lut8;
272  } else {
273  s->apply_lut = apply_lut16;
274  }
275 
276  buffer = av_malloc(max * 3 * sizeof(*buffer));
277  if (!buffer)
278  return AVERROR(ENOMEM);
279 
280  shadows = buffer + max * 0;
281  midtones = buffer + max * 1;
282  highlights = buffer + max * 2;
283 
284  for (i = 0; i < max; i++) {
285  const double L = 0.333 * (max - 1);
286  const double M = 0.7 * (max - 1);
287  const double H = 1 * (max - 1);
288  double low = av_clipd((i - L) / (-max * 0.25) + 0.5, 0, 1) * M;
289  double mid = av_clipd((i - L) / ( max * 0.25) + 0.5, 0, 1) *
290  av_clipd((i + L - H) / (-max * 0.25) + 0.5, 0, 1) * M;
291 
292  shadows[i] = low;
293  midtones[i] = mid;
294  highlights[max - i - 1] = low;
295  }
296 
297  for (i = 0; i < max; i++) {
298  r = g = b = i;
299 
300  r = av_clip_uintp2_c(r + s->cyan_red.shadows * shadows[r], depth);
301  r = av_clip_uintp2_c(r + s->cyan_red.midtones * midtones[r], depth);
302  r = av_clip_uintp2_c(r + s->cyan_red.highlights * highlights[r], depth);
303 
304  g = av_clip_uintp2_c(g + s->magenta_green.shadows * shadows[g], depth);
305  g = av_clip_uintp2_c(g + s->magenta_green.midtones * midtones[g], depth);
306  g = av_clip_uintp2_c(g + s->magenta_green.highlights * highlights[g], depth);
307 
308  b = av_clip_uintp2_c(b + s->yellow_blue.shadows * shadows[b], depth);
309  b = av_clip_uintp2_c(b + s->yellow_blue.midtones * midtones[b], depth);
310  b = av_clip_uintp2_c(b + s->yellow_blue.highlights * highlights[b], depth);
311 
312  s->lut[R][i] = r;
313  s->lut[G][i] = g;
314  s->lut[B][i] = b;
315  }
316 
317  av_free(buffer);
318 
319  ff_fill_rgba_map(s->rgba_map, outlink->format);
320  s->step = av_get_padded_bits_per_pixel(desc) >> 3;
321 
322  return 0;
323 }
324 
326 {
327  AVFilterContext *ctx = inlink->dst;
328  ColorBalanceContext *s = ctx->priv;
329  AVFilterLink *outlink = ctx->outputs[0];
330  ThreadData td;
331  AVFrame *out;
332 
333  if (av_frame_is_writable(in)) {
334  out = in;
335  } else {
336  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
337  if (!out) {
338  av_frame_free(&in);
339  return AVERROR(ENOMEM);
340  }
341  av_frame_copy_props(out, in);
342  }
343 
344  td.in = in;
345  td.out = out;
346  ctx->internal->execute(ctx, s->apply_lut, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
347 
348  if (in != out)
349  av_frame_free(&in);
350  return ff_filter_frame(outlink, out);
351 }
352 
354  {
355  .name = "default",
356  .type = AVMEDIA_TYPE_VIDEO,
357  .filter_frame = filter_frame,
358  },
359  { NULL }
360 };
361 
363  {
364  .name = "default",
365  .type = AVMEDIA_TYPE_VIDEO,
366  .config_props = config_output,
367  },
368  { NULL }
369 };
370 
372  .name = "colorbalance",
373  .description = NULL_IF_CONFIG_SMALL("Adjust the color balance."),
374  .priv_size = sizeof(ColorBalanceContext),
375  .priv_class = &colorbalance_class,
377  .inputs = colorbalance_inputs,
378  .outputs = colorbalance_outputs,
380 };
#define NULL
Definition: coverity.c:32
static const AVFilterPad colorbalance_inputs[]
AVFrame * out
Definition: af_adeclick.c:488
#define A
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVOption.
Definition: opt.h:246
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:407
static const AVFilterPad colorbalance_outputs[]
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2562
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * g
Definition: vf_curves.c:115
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:377
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:382
static int apply_lut8_p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:239
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
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
static int apply_lut8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#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
const char * name
Pad name.
Definition: internal.h:60
static int query_formats(AVFilterContext *ctx)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1093
#define M(a, b)
Definition: vp3dsp.c:45
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_malloc(s)
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
static int config_output(AVFilterLink *outlink)
AVOptions.
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:402
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
AVFrame * dst
Definition: vf_blend.c:55
static int apply_lut16_p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:378
double shadows
A filter pad used for either input or output.
Definition: internal.h:54
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
int width
Definition: frame.h:353
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:569
#define td
Definition: regdef.h:70
int step
Definition: vf_remap.c:77
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
AVFILTER_DEFINE_CLASS(colorbalance)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
const char * r
Definition: vf_curves.c:114
void * priv
private data for use by the filter
Definition: avfilter.h:353
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel for the pixel format described by pixdesc, including any padding ...
Definition: pixdesc.c:2487
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
const char * arg
Definition: jacosubdec.c:66
double highlights
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:408
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:373
#define B
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:409
const uint8_t * src
Definition: vf_bm3d.c:56
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
static int apply_lut16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:406
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
#define FFMIN(a, b)
Definition: common.h:96
AVFormatContext * ctx
Definition: movenc.c:48
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
#define L(x)
Definition: vp56_arith.h:36
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:405
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
#define R
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
#define G
misc drawing utilities
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
Used for passing data between threads.
Definition: dsddec.c:64
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
AVFilter ff_vf_colorbalance
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_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),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){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) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;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)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&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);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=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){int planes=out->planar?out->ch_count:1;unsigned m=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){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
double midtones
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFrame * b
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:240
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:404
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
uint16_t lut[3][65536]
int
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
avfilter_execute_func * execute
Definition: internal.h:155
#define OFFSET(x)
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2036
#define av_free(p)
const AVPixFmtDescriptor * desc
Definition: vf_tonemap.c:196
#define H
Definition: pixlet.c:39
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:338
static const AVOption colorbalance_options[]
static void apply_lut(const uint16_t *lut, uint16_t *dst, int dsize)
Definition: exr.c:350
int height
Definition: frame.h:353
AVFrame * in
Definition: af_afftdn.c:1082
AVFilterLink * inlink
Definition: vf_blend.c:56
internal API functions
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
#define FLAGS
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:237
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int(* apply_lut)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
GLuint buffer
Definition: opengl_enc.c:101
AVFrame * max
Definition: vf_threshold.c:75
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
Definition: common.h:229