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  float llimit;
41  float 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[] = {
79 };
80 
82 {
83  AmplifyContext *s = ctx->priv;
84 
85  s->nb_inputs = s->radius * 2 + 1;
86 
87  s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
88  if (!s->frames)
89  return AVERROR(ENOMEM);
90 
91  return 0;
92 }
93 
94 typedef struct ThreadData {
95  AVFrame **in, *out;
96 } ThreadData;
97 
98 #define AMPLIFY_SLICE(type, stype, clip) \
99  const stype limit[2] = { s->llimit, s->hlimit }; \
100  \
101  for (int p = 0; p < s->nb_planes; p++) { \
102  const int slice_start = (s->height[p] * jobnr) / nb_jobs; \
103  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs; \
104  type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
105  ptrdiff_t dst_linesize = out->linesize[p] / sizeof(type); \
106  \
107  if (!((1 << p) & s->planes)) { \
108  av_image_copy_plane((uint8_t *)dst, out->linesize[p], \
109  in[radius]->data[p] + slice_start * in[radius]->linesize[p], \
110  in[radius]->linesize[p], \
111  s->linesize[p], slice_end - slice_start); \
112  continue; \
113  } \
114  \
115  for (int y = slice_start; y < slice_end; y++) { \
116  for (int x = 0; x < s->linesize[p] / sizeof(type); x++) { \
117  stype src = *(type *)(in[radius]->data[p] + y * in[radius]->linesize[p] + x * sizeof(type));\
118  float diff, abs_diff, avg; \
119  stype sum = 0; \
120  \
121  for (int i = 0; i < nb_inputs; i++) { \
122  sum += *(type *)(in[i]->data[p] + y * in[i]->linesize[p] + x * sizeof(type));\
123  } \
124  \
125  avg = sum * scale; \
126  diff = src - avg; \
127  abs_diff = fabsf(diff); \
128  \
129  if (abs_diff < threshold && abs_diff > tolerance) { \
130  float amp = copysignf(fminf(abs_diff * factor, limit[diff >= 0]), diff); \
131  dst[x] = clip(src + amp, depth); \
132  } else { \
133  dst[x] = src; \
134  } \
135  } \
136  \
137  dst += dst_linesize; \
138  } \
139  }
140 
141 #define CLIP8(x, depth) av_clip_uint8(lrintf(x))
142 #define CLIP16(x, depth) av_clip_uintp2_c(lrintf(x), depth)
143 #define NOP(x, depth) (x)
144 
145 static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
146 {
147  AmplifyContext *s = ctx->priv;
148  ThreadData *td = arg;
149  AVFrame **in = td->in;
150  AVFrame *out = td->out;
151  const int radius = s->radius;
152  const int nb_inputs = s->nb_inputs;
153  const float threshold = s->threshold;
154  const float tolerance = s->tolerance;
155  const float scale = 1.f / nb_inputs;
156  const float factor = s->factor;
157  const int depth = s->depth;
158 
159  if (s->depth <= 8) {
160  AMPLIFY_SLICE(uint8_t, int, CLIP8)
161  } else if (s->depth <= 16) {
162  AMPLIFY_SLICE(uint16_t, int, CLIP16)
163  } else {
164  AMPLIFY_SLICE(float, float, NOP)
165  }
166 
167  return 0;
168 }
169 
170 static int config_output(AVFilterLink *outlink)
171 {
172  AVFilterContext *ctx = outlink->src;
173  AmplifyContext *s = ctx->priv;
174  AVFilterLink *inlink = ctx->inputs[0];
175  int ret;
176 
177  s->desc = av_pix_fmt_desc_get(outlink->format);
178  if (!s->desc)
179  return AVERROR_BUG;
180  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
181  s->depth = s->desc->comp[0].depth;
182 
183  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
184  return ret;
185 
186  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
187  s->height[0] = s->height[3] = inlink->h;
188 
189  return 0;
190 }
191 
193 {
194  AmplifyContext *s = ctx->priv;
195  int i;
196 
197  if (s->frames) {
198  for (i = 0; i < s->nb_frames; i++)
199  av_frame_free(&s->frames[i]);
200  }
201  av_freep(&s->frames);
202 }
203 
205 {
206  AVFilterContext *ctx = inlink->dst;
207  AVFilterLink *outlink = ctx->outputs[0];
208  AmplifyContext *s = ctx->priv;
209  ThreadData td;
210  AVFrame *out;
211 
212  if (s->nb_frames < s->nb_inputs) {
213  s->frames[s->nb_frames] = in;
214  s->nb_frames++;
215  return 0;
216  } else {
217  av_frame_free(&s->frames[0]);
218  memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
219  s->frames[s->nb_inputs - 1] = in;
220  }
221 
222  if (!ctx->is_disabled) {
223  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
224  if (!out)
225  return AVERROR(ENOMEM);
226  av_frame_copy_props(out, s->frames[0]);
227 
228  td.out = out;
229  td.in = s->frames;
231  FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
232  } else {
233  out = av_frame_clone(s->frames[s->radius]);
234  if (!out)
235  return AVERROR(ENOMEM);
236  out->pts = s->frames[0]->pts;
237  }
238 
239  return ff_filter_frame(outlink, out);
240 }
241 
242 #define OFFSET(x) offsetof(AmplifyContext, x)
243 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
244 #define VFT AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
245 
246 static const AVOption amplify_options[] = {
247  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=2}, 1, 63, .flags = FLAGS },
248  { "factor", "set factor", OFFSET(factor), AV_OPT_TYPE_FLOAT, {.dbl=2}, 0, UINT16_MAX, .flags = VFT },
249  { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=10}, 0, UINT16_MAX, .flags = VFT },
250  { "tolerance", "set tolerance", OFFSET(tolerance), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, UINT16_MAX, .flags = VFT },
251  { "low", "set low limit for amplification", OFFSET(llimit), AV_OPT_TYPE_FLOAT, {.dbl=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
252  { "high", "set high limit for amplification", OFFSET(hlimit), AV_OPT_TYPE_FLOAT, {.dbl=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
253  { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, VFT },
254  { NULL },
255 };
256 
257 static const AVFilterPad inputs[] = {
258  {
259  .name = "default",
260  .type = AVMEDIA_TYPE_VIDEO,
261  .filter_frame = filter_frame,
262  },
263 };
264 
265 static const AVFilterPad outputs[] = {
266  {
267  .name = "default",
268  .type = AVMEDIA_TYPE_VIDEO,
269  .config_props = config_output,
270  },
271 };
272 
273 AVFILTER_DEFINE_CLASS(amplify);
274 
276  .name = "amplify",
277  .description = NULL_IF_CONFIG_SMALL("Amplify changes between successive video frames."),
278  .priv_size = sizeof(AmplifyContext),
279  .priv_class = &amplify_class,
283  .init = init,
284  .uninit = uninit,
286  .process_command = ff_filter_process_command,
287 };
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:101
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:451
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:430
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:999
AmplifyContext::llimit
float llimit
Definition: vf_amplify.c:40
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2675
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_amplify.c:192
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:275
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:443
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(amplify)
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:450
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:445
AVOption
AVOption.
Definition: opt.h:251
FLAGS
#define FLAGS
Definition: vf_amplify.c:243
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:408
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_amplify.c:204
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:175
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:446
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:388
AmplifyContext::nb_planes
int nb_planes
Definition: vf_amplify.c:46
formats.h
AmplifyContext::tolerance
float tolerance
Definition: vf_amplify.c:37
AMPLIFY_SLICE
#define AMPLIFY_SLICE(type, stype, clip)
Definition: vf_amplify.c:98
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2715
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:442
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:426
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:424
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:452
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:406
scale
static av_always_inline float scale(float x, float s)
Definition: vf_v360.c:1389
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:392
ThreadData::in
AVFrame ** in
Definition: vf_amplify.c:95
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
AmplifyContext::hlimit
float hlimit
Definition: vf_amplify.c:41
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:411
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:420
VFT
#define VFT
Definition: vf_amplify.c:244
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:428
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:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:429
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:421
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
AmplifyContext::height
int height[4]
Definition: vf_amplify.c:48
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:449
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:405
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:419
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:391
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:474
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
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:440
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
OFFSET
#define OFFSET(x)
Definition: vf_amplify.c:242
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
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:389
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:427
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:603
NOP
#define NOP(x, depth)
Definition: vf_amplify.c:143
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:410
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:409
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:423
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
planes
static const struct @334 planes[]
AmplifyContext::planes
int planes
Definition: vf_amplify.c:38
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:437
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:413
inputs
static const AVFilterPad inputs[]
Definition: vf_amplify.c:257
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:415
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:863
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:447
amplify_options
static const AVOption amplify_options[]
Definition: vf_amplify.c:246
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
AmplifyContext::radius
int radius
Definition: vf_amplify.c:34
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AmplifyContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_amplify.c:33
outputs
static const AVFilterPad outputs[]
Definition: vf_amplify.c:265
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:425
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:783
ThreadData
Used for passing data between threads.
Definition: dsddec.c:68
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_amplify.c:81
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:55
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_amplify.c:170
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:407
AVFilter
Filter definition.
Definition: avfilter.h:171
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:444
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:412
AmplifyContext::depth
int depth
Definition: vf_amplify.c:45
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:417
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:448
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:438
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:408
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
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:127
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
amplify_frame
static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_amplify.c:145
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
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:224
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:160
imgutils.h
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
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:414
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:418
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:390
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:142
CLIP8
#define CLIP8(x, depth)
Definition: vf_amplify.c:141
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:416
CLIP16
#define CLIP16(x, depth)
Definition: vf_amplify.c:142
AmplifyContext::threshold
float threshold
Definition: vf_amplify.c:36