FFmpeg
vf_amplify.c
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1 /*
2  * Copyright (c) 2018 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/intreadwrite.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 
26 #include "avfilter.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "video.h"
30 
31 typedef struct AmplifyContext {
32  const AVClass *class;
34  int radius;
35  float factor;
36  float threshold;
37  float tolerance;
38  int planes;
39 
40  int llimit;
41  int hlimit;
42  int nb_inputs;
43  int nb_frames;
44 
45  int depth;
46  int nb_planes;
47  int linesize[4];
48  int height[4];
49 
52 
53 static const enum AVPixelFormat pixel_fmts[] = {
78 };
79 
81 {
82  AmplifyContext *s = ctx->priv;
83 
84  s->nb_inputs = s->radius * 2 + 1;
85 
86  s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
87  if (!s->frames)
88  return AVERROR(ENOMEM);
89 
90  return 0;
91 }
92 
93 typedef struct ThreadData {
94  AVFrame **in, *out;
95 } ThreadData;
96 
97 static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
98 {
99  AmplifyContext *s = ctx->priv;
100  ThreadData *td = arg;
101  AVFrame **in = td->in;
102  AVFrame *out = td->out;
103  const int radius = s->radius;
104  const int nb_inputs = s->nb_inputs;
105  const float threshold = s->threshold;
106  const float tolerance = s->tolerance;
107  const float factor = s->factor;
108  const int llimit = s->llimit;
109  const int hlimit = s->hlimit;
110  const int depth = s->depth;
111  int i, p, x, y;
112 
113  if (s->depth <= 8) {
114  for (p = 0; p < s->nb_planes; p++) {
115  const int slice_start = (s->height[p] * jobnr) / nb_jobs;
116  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
117  uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
118 
119  if (!((1 << p) & s->planes)) {
120  av_image_copy_plane(dst, out->linesize[p],
121  in[radius]->data[p] + slice_start * in[radius]->linesize[p],
122  in[radius]->linesize[p],
123  s->linesize[p], slice_end - slice_start);
124  continue;
125  }
126 
127  for (y = slice_start; y < slice_end; y++) {
128  for (x = 0; x < s->linesize[p]; x++) {
129  int src = in[radius]->data[p][y * in[radius]->linesize[p] + x];
130  float diff, avg;
131  int sum = 0;
132 
133  for (i = 0; i < nb_inputs; i++) {
134  sum += in[i]->data[p][y * in[i]->linesize[p] + x];
135  }
136 
137  avg = sum / (float)nb_inputs;
138  diff = src - avg;
139  if (fabsf(diff) < threshold && fabsf(diff) > tolerance) {
140  int amp;
141  if (diff < 0) {
142  amp = -FFMIN(FFABS(diff * factor), llimit);
143  } else {
144  amp = FFMIN(FFABS(diff * factor), hlimit);
145  }
146  dst[x] = av_clip_uint8(src + amp);
147  } else {
148  dst[x] = src;
149  }
150  }
151 
152  dst += out->linesize[p];
153  }
154  }
155  } else {
156  for (p = 0; p < s->nb_planes; p++) {
157  const int slice_start = (s->height[p] * jobnr) / nb_jobs;
158  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
159  uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
160 
161  if (!((1 << p) & s->planes)) {
162  av_image_copy_plane((uint8_t *)dst, out->linesize[p],
163  in[radius]->data[p] + slice_start * in[radius]->linesize[p],
164  in[radius]->linesize[p],
165  s->linesize[p], slice_end - slice_start);
166  continue;
167  }
168 
169  for (y = slice_start; y < slice_end; y++) {
170  for (x = 0; x < s->linesize[p] / 2; x++) {
171  int src = AV_RN16(in[radius]->data[p] + y * in[radius]->linesize[p] + x * 2);
172  float diff, avg;
173  int sum = 0;
174 
175  for (i = 0; i < nb_inputs; i++) {
176  sum += AV_RN16(in[i]->data[p] + y * in[i]->linesize[p] + x * 2);
177  }
178 
179  avg = sum / (float)nb_inputs;
180  diff = src - avg;
181 
182  if (fabsf(diff) < threshold && fabsf(diff) > tolerance) {
183  int amp;
184  if (diff < 0) {
185  amp = -FFMIN(FFABS(diff * factor), llimit);
186  } else {
187  amp = FFMIN(FFABS(diff * factor), hlimit);
188  }
189  dst[x] = av_clip_uintp2_c(src + amp, depth);
190  } else {
191  dst[x] = src;
192  }
193  }
194 
195  dst += out->linesize[p] / 2;
196  }
197  }
198  }
199 
200  return 0;
201 }
202 
203 static int config_output(AVFilterLink *outlink)
204 {
205  AVFilterContext *ctx = outlink->src;
206  AmplifyContext *s = ctx->priv;
207  AVFilterLink *inlink = ctx->inputs[0];
208  int ret;
209 
210  s->desc = av_pix_fmt_desc_get(outlink->format);
211  if (!s->desc)
212  return AVERROR_BUG;
213  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
214  s->depth = s->desc->comp[0].depth;
215 
216  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
217  return ret;
218 
219  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
220  s->height[0] = s->height[3] = inlink->h;
221 
222  return 0;
223 }
224 
226 {
227  AmplifyContext *s = ctx->priv;
228  int i;
229 
230  if (s->frames) {
231  for (i = 0; i < s->nb_frames; i++)
232  av_frame_free(&s->frames[i]);
233  }
234  av_freep(&s->frames);
235 }
236 
238 {
239  AVFilterContext *ctx = inlink->dst;
240  AVFilterLink *outlink = ctx->outputs[0];
241  AmplifyContext *s = ctx->priv;
242  ThreadData td;
243  AVFrame *out;
244 
245  if (s->nb_frames < s->nb_inputs) {
246  s->frames[s->nb_frames] = in;
247  s->nb_frames++;
248  return 0;
249  } else {
250  av_frame_free(&s->frames[0]);
251  memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
252  s->frames[s->nb_inputs - 1] = in;
253  }
254 
255  if (!ctx->is_disabled) {
256  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
257  if (!out)
258  return AVERROR(ENOMEM);
259  av_frame_copy_props(out, s->frames[0]);
260 
261  td.out = out;
262  td.in = s->frames;
264  FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
265  } else {
266  out = av_frame_clone(s->frames[s->radius]);
267  if (!out)
268  return AVERROR(ENOMEM);
269  out->pts = s->frames[0]->pts;
270  }
271 
272  return ff_filter_frame(outlink, out);
273 }
274 
275 #define OFFSET(x) offsetof(AmplifyContext, x)
276 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
277 #define VFT AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
278 
279 static const AVOption amplify_options[] = {
280  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=2}, 1, 63, .flags = FLAGS },
281  { "factor", "set factor", OFFSET(factor), AV_OPT_TYPE_FLOAT, {.dbl=2}, 0, UINT16_MAX, .flags = VFT },
282  { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=10}, 0, UINT16_MAX, .flags = VFT },
283  { "tolerance", "set tolerance", OFFSET(tolerance), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, UINT16_MAX, .flags = VFT },
284  { "low", "set low limit for amplification", OFFSET(llimit), AV_OPT_TYPE_INT, {.i64=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
285  { "high", "set high limit for amplification", OFFSET(hlimit), AV_OPT_TYPE_INT, {.i64=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
286  { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, VFT },
287  { NULL },
288 };
289 
290 static const AVFilterPad inputs[] = {
291  {
292  .name = "default",
293  .type = AVMEDIA_TYPE_VIDEO,
294  .filter_frame = filter_frame,
295  },
296 };
297 
298 static const AVFilterPad outputs[] = {
299  {
300  .name = "default",
301  .type = AVMEDIA_TYPE_VIDEO,
302  .config_props = config_output,
303  },
304 };
305 
306 AVFILTER_DEFINE_CLASS(amplify);
307 
309  .name = "amplify",
310  .description = NULL_IF_CONFIG_SMALL("Amplify changes between successive video frames."),
311  .priv_size = sizeof(AmplifyContext),
312  .priv_class = &amplify_class,
316  .init = init,
317  .uninit = uninit,
319  .process_command = ff_filter_process_command,
320 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:98
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:447
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:426
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
AVERROR
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
opt.h
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1018
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2660
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_amplify.c:225
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
ff_vf_amplify
const AVFilter ff_vf_amplify
Definition: vf_amplify.c:308
AV_RN16
#define AV_RN16(p)
Definition: intreadwrite.h:360
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:109
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:439
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:317
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(amplify)
pixdesc.h
av_clip_uintp2_c
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:276
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:446
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:441
AVOption
AVOption.
Definition: opt.h:247
data
const char data[16]
Definition: mxf.c:143
FLAGS
#define FLAGS
Definition: vf_amplify.c:276
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:404
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_amplify.c:237
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:53
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:169
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
AmplifyContext::nb_frames
int nb_frames
Definition: vf_amplify.c:43
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:442
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:384
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:338
AmplifyContext::llimit
int llimit
Definition: vf_amplify.c:40
AmplifyContext::nb_planes
int nb_planes
Definition: vf_amplify.c:46
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:374
formats.h
AmplifyContext::tolerance
float tolerance
Definition: vf_amplify.c:37
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2700
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:438
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:422
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
AmplifyContext
Definition: vf_amplify.c:31
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:420
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:448
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:402
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:388
ThreadData::in
AVFrame ** in
Definition: vf_amplify.c:94
fabsf
static __device__ float fabsf(float a)
Definition: cuda_runtime.h:181
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:407
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:248
AmplifyContext::linesize
int linesize[4]
Definition: vf_amplify.c:47
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:416
VFT
#define VFT
Definition: vf_amplify.c:277
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:424
av_image_fill_linesizes
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:89
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:425
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:417
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2039
AmplifyContext::height
int height[4]
Definition: vf_amplify.c:48
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:445
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:401
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:415
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:387
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:422
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
OFFSET
#define OFFSET(x)
Definition: vf_amplify.c:275
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
arg
const char * arg
Definition: jacosubdec.c:67
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:65
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:385
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:423
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:537
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:406
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:405
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:419
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
AmplifyContext::planes
int planes
Definition: vf_amplify.c:38
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:409
inputs
static const AVFilterPad inputs[]
Definition: vf_amplify.c:290
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:411
AmplifyContext::hlimit
int hlimit
Definition: vf_amplify.c:41
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
ff_filter_process_command
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:882
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:443
amplify_options
static const AVOption amplify_options[]
Definition: vf_amplify.c:279
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
AmplifyContext::radius
int radius
Definition: vf_amplify.c:34
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
AmplifyContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_amplify.c:33
outputs
static const AVFilterPad outputs[]
Definition: vf_amplify.c:298
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:421
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:803
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_amplify.c:80
AmplifyContext::factor
float factor
Definition: vf_amplify.c:35
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
AmplifyContext::nb_inputs
int nb_inputs
Definition: vf_amplify.c:42
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_amplify.c:203
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:271
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:403
AVFilter
Filter definition.
Definition: avfilter.h:165
AmplifyContext::frames
AVFrame ** frames
Definition: vf_amplify.c:50
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:440
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:408
AmplifyContext::depth
int depth
Definition: vf_amplify.c:45
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:413
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:444
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
avfilter.h
av_clip_uint8
#define av_clip_uint8
Definition: common.h:102
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:402
factor
static const int factor[16]
Definition: vf_pp7.c:76
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
planes
static const struct @322 planes[]
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
diff
static av_always_inline int diff(const uint32_t a, const uint32_t b)
Definition: vf_palettegen.c:139
amplify_frame
static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_amplify.c:97
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Definition: opt.h:223
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:154
imgutils.h
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:362
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:410
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:414
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:386
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:143
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:412
AmplifyContext::threshold
float threshold
Definition: vf_amplify.c:36