FFmpeg  4.3.8
vf_colorlevels.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/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 #include "avfilter.h"
25 #include "drawutils.h"
26 #include "formats.h"
27 #include "internal.h"
28 #include "video.h"
29 
30 #define R 0
31 #define G 1
32 #define B 2
33 #define A 3
34 
35 typedef struct Range {
36  double in_min, in_max;
37  double out_min, out_max;
38 } Range;
39 
40 typedef struct ColorLevelsContext {
41  const AVClass *class;
42  Range range[4];
43  int nb_comp;
44  int bpp;
45  int step;
46  uint8_t rgba_map[4];
47  int linesize;
49 
50 #define OFFSET(x) offsetof(ColorLevelsContext, x)
51 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
52 static const AVOption colorlevels_options[] = {
53  { "rimin", "set input red black point", OFFSET(range[R].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
54  { "gimin", "set input green black point", OFFSET(range[G].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
55  { "bimin", "set input blue black point", OFFSET(range[B].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
56  { "aimin", "set input alpha black point", OFFSET(range[A].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
57  { "rimax", "set input red white point", OFFSET(range[R].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
58  { "gimax", "set input green white point", OFFSET(range[G].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
59  { "bimax", "set input blue white point", OFFSET(range[B].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
60  { "aimax", "set input alpha white point", OFFSET(range[A].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
61  { "romin", "set output red black point", OFFSET(range[R].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
62  { "gomin", "set output green black point", OFFSET(range[G].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
63  { "bomin", "set output blue black point", OFFSET(range[B].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
64  { "aomin", "set output alpha black point", OFFSET(range[A].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
65  { "romax", "set output red white point", OFFSET(range[R].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
66  { "gomax", "set output green white point", OFFSET(range[G].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
67  { "bomax", "set output blue white point", OFFSET(range[B].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
68  { "aomax", "set output alpha white point", OFFSET(range[A].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
69  { NULL }
70 };
71 
72 AVFILTER_DEFINE_CLASS(colorlevels);
73 
75 {
76  static const enum AVPixelFormat pix_fmts[] = {
85  };
86 
87  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
88  if (!fmts_list)
89  return AVERROR(ENOMEM);
90  return ff_set_common_formats(ctx, fmts_list);
91 }
92 
93 static int config_input(AVFilterLink *inlink)
94 {
95  AVFilterContext *ctx = inlink->dst;
96  ColorLevelsContext *s = ctx->priv;
98 
99  s->nb_comp = desc->nb_components;
100  s->bpp = desc->comp[0].depth >> 3;
101  s->step = (av_get_padded_bits_per_pixel(desc) >> 3) / s->bpp;
102  s->linesize = inlink->w * s->step;
103  ff_fill_rgba_map(s->rgba_map, inlink->format);
104 
105  return 0;
106 }
107 
108 struct thread_data {
109  const uint8_t *srcrow;
113 
114  double coeff;
116 
117  int h;
118 
119  int imin;
120  int omin;
121 };
122 
123 #define LOAD_COMMON\
124  ColorLevelsContext *s = ctx->priv;\
125  const struct thread_data *td = arg;\
126 \
127  int process_h = td->h;\
128  const int slice_start = (process_h * jobnr ) / nb_jobs;\
129  const int slice_end = (process_h * (jobnr+1)) / nb_jobs;\
130  int x, y;\
131  const uint8_t *srcrow = td->srcrow;\
132  uint8_t *dstrow = td->dstrow;\
133  const int step = s->step;\
134  const uint8_t offset = td->offset;\
135 \
136  int imin = td->imin;\
137  int omin = td->omin;\
138  double coeff = td->coeff;\
139 
140 static int colorlevel_slice_8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
141 {
143 
144  for (y = slice_start; y < slice_end; y++) {
145  const uint8_t *src = srcrow + y * td->src_linesize;
146  uint8_t *dst = dstrow + y * td->dst_linesize;
147 
148  for (x = 0; x < s->linesize; x += step)
149  dst[x + offset] = av_clip_uint8((src[x + offset] - imin) * coeff + omin);
150  }
151 
152  return 0;
153 }
154 
155 static int colorlevel_slice_16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
156 {
158 
159  for (y = slice_start; y < slice_end; y++) {
160  const uint16_t *src = (const uint16_t *)(srcrow + y * td->src_linesize);
161  uint16_t *dst = (uint16_t *)(dstrow + y * td->dst_linesize);
162 
163  for (x = 0; x < s->linesize; x += step)
164  dst[x + offset] = av_clip_uint16((src[x + offset] - imin) * coeff + omin);
165  }
166 
167  return 0;
168 }
169 
170 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
171 {
172  AVFilterContext *ctx = inlink->dst;
173  ColorLevelsContext *s = ctx->priv;
174  AVFilterLink *outlink = ctx->outputs[0];
175  const int step = s->step;
176  AVFrame *out;
177  int x, y, i;
178 
179  if (av_frame_is_writable(in)) {
180  out = in;
181  } else {
182  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
183  if (!out) {
184  av_frame_free(&in);
185  return AVERROR(ENOMEM);
186  }
187  av_frame_copy_props(out, in);
188  }
189 
190  switch (s->bpp) {
191  case 1:
192  for (i = 0; i < s->nb_comp; i++) {
193  Range *r = &s->range[i];
194  const uint8_t offset = s->rgba_map[i];
195  const uint8_t *srcrow = in->data[0];
196  uint8_t *dstrow = out->data[0];
197  int imin = lrint(r->in_min * UINT8_MAX);
198  int imax = lrint(r->in_max * UINT8_MAX);
199  int omin = lrint(r->out_min * UINT8_MAX);
200  int omax = lrint(r->out_max * UINT8_MAX);
201  double coeff;
202  struct thread_data td;
203 
204  if (imin < 0) {
205  imin = UINT8_MAX;
206  for (y = 0; y < inlink->h; y++) {
207  const uint8_t *src = srcrow;
208 
209  for (x = 0; x < s->linesize; x += step)
210  imin = FFMIN(imin, src[x + offset]);
211  srcrow += in->linesize[0];
212  }
213  }
214  if (imax < 0) {
215  srcrow = in->data[0];
216  imax = 0;
217  for (y = 0; y < inlink->h; y++) {
218  const uint8_t *src = srcrow;
219 
220  for (x = 0; x < s->linesize; x += step)
221  imax = FFMAX(imax, src[x + offset]);
222  srcrow += in->linesize[0];
223  }
224  }
225 
226  srcrow = in->data[0];
227  coeff = (omax - omin) / (double)(imax - imin);
228 
229  td.srcrow = srcrow;
230  td.dstrow = dstrow;
231  td.dst_linesize = out->linesize[0];
232  td.src_linesize = in->linesize[0];
233  td.coeff = coeff;
234  td.offset = offset;
235  td.h = inlink->h;
236  td.imin = imin;
237  td.omin = omin;
238 
239  ctx->internal->execute(ctx, colorlevel_slice_8, &td, NULL,
240  FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
241  }
242  break;
243  case 2:
244  for (i = 0; i < s->nb_comp; i++) {
245  Range *r = &s->range[i];
246  const uint8_t offset = s->rgba_map[i];
247  const uint8_t *srcrow = in->data[0];
248  uint8_t *dstrow = out->data[0];
249  int imin = lrint(r->in_min * UINT16_MAX);
250  int imax = lrint(r->in_max * UINT16_MAX);
251  int omin = lrint(r->out_min * UINT16_MAX);
252  int omax = lrint(r->out_max * UINT16_MAX);
253  double coeff;
254  struct thread_data td;
255 
256  if (imin < 0) {
257  imin = UINT16_MAX;
258  for (y = 0; y < inlink->h; y++) {
259  const uint16_t *src = (const uint16_t *)srcrow;
260 
261  for (x = 0; x < s->linesize; x += step)
262  imin = FFMIN(imin, src[x + offset]);
263  srcrow += in->linesize[0];
264  }
265  }
266  if (imax < 0) {
267  srcrow = in->data[0];
268  imax = 0;
269  for (y = 0; y < inlink->h; y++) {
270  const uint16_t *src = (const uint16_t *)srcrow;
271 
272  for (x = 0; x < s->linesize; x += step)
273  imax = FFMAX(imax, src[x + offset]);
274  srcrow += in->linesize[0];
275  }
276  }
277 
278  srcrow = in->data[0];
279  coeff = (omax - omin) / (double)(imax - imin);
280 
281  td.srcrow = srcrow;
282  td.dstrow = dstrow;
283  td.dst_linesize = out->linesize[0];
284  td.src_linesize = in->linesize[0];
285  td.coeff = coeff;
286  td.offset = offset;
287  td.h = inlink->h;
288  td.imin = imin;
289  td.omin = omin;
290 
291  ctx->internal->execute(ctx, colorlevel_slice_16, &td, NULL,
292  FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
293  }
294  }
295 
296  if (in != out)
297  av_frame_free(&in);
298  return ff_filter_frame(outlink, out);
299 }
300 
301 static const AVFilterPad colorlevels_inputs[] = {
302  {
303  .name = "default",
304  .type = AVMEDIA_TYPE_VIDEO,
305  .filter_frame = filter_frame,
306  .config_props = config_input,
307  },
308  { NULL }
309 };
310 
312  {
313  .name = "default",
314  .type = AVMEDIA_TYPE_VIDEO,
315  },
316  { NULL }
317 };
318 
320  .name = "colorlevels",
321  .description = NULL_IF_CONFIG_SMALL("Adjust the color levels."),
322  .priv_size = sizeof(ColorLevelsContext),
323  .priv_class = &colorlevels_class,
325  .inputs = colorlevels_inputs,
326  .outputs = colorlevels_outputs,
329 };
#define NULL
Definition: coverity.c:32
#define G
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
AVOption.
Definition: opt.h:246
misc image utilities
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * desc
Definition: nvenc.c:79
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:387
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:392
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:104
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
const uint8_t * srcrow
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:300
#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
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1075
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
AVOptions.
#define A
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
static int query_formats(AVFilterContext *ctx)
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:388
double out_min
A filter pad used for either input or output.
Definition: internal.h:54
#define src
Definition: vp8dsp.c:254
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
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:605
#define td
Definition: regdef.h:70
#define FLAGS
static const AVFilterPad colorlevels_inputs[]
#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:203
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options...
Definition: avfilter.c:869
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:2514
#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
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:383
static const uint8_t offset[127][2]
Definition: vf_spp.c:93
#define FFMAX(a, b)
Definition: common.h:94
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
static int config_input(AVFilterLink *inlink)
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:784
#define FFMIN(a, b)
Definition: common.h:96
static const AVOption colorlevels_options[]
AVFormatContext * ctx
Definition: movenc.c:48
#define s(width, name)
Definition: cbs_vp9.c:257
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
misc drawing utilities
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:595
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
static int colorlevel_slice_8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
double in_min
#define B
static const AVFilterPad colorlevels_outputs[]
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Describe the class of an AVClass context structure.
Definition: log.h:67
#define LOAD_COMMON
Filter definition.
Definition: avfilter.h:144
uint8_t * dstrow
double out_max
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 flags(name, subs,...)
Definition: cbs_av1.c:576
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:314
#define OFFSET(x)
avfilter_execute_func * execute
Definition: internal.h:144
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2040
double in_max
AVFilter ff_vf_colorlevels
A list of supported formats for one end of a filter link.
Definition: formats.h:64
static const double coeff[2][5]
Definition: vf_owdenoise.c:72
#define lrint
Definition: tablegen.h:53
An instance of a filter.
Definition: avfilter.h:338
#define R
FILE * out
Definition: movenc.c:54
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_afftdn.c:1374
AVFILTER_DEFINE_CLASS(colorlevels)
uint8_t offset
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:237
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
static int colorlevel_slice_16(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:659