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/opt.h"
23 #include "libavutil/pixdesc.h"
24 
25 #include "avfilter.h"
26 #include "internal.h"
27 #include "video.h"
28 
29 typedef struct AmplifyContext {
30  const AVClass *class;
32  int radius;
33  float factor;
34  float threshold;
35  float tolerance;
36  int planes;
37 
38  float llimit;
39  float hlimit;
40  int nb_inputs;
41  int nb_frames;
42 
43  int depth;
44  int nb_planes;
45  int linesize[4];
46  int height[4];
47 
50 
51 static const enum AVPixelFormat pixel_fmts[] = {
77 };
78 
80 {
81  AmplifyContext *s = ctx->priv;
82 
83  s->nb_inputs = s->radius * 2 + 1;
84 
85  s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
86  if (!s->frames)
87  return AVERROR(ENOMEM);
88 
89  return 0;
90 }
91 
92 typedef struct ThreadData {
93  AVFrame **in, *out;
94 } ThreadData;
95 
96 #define AMPLIFY_SLICE(type, stype, clip) \
97  const stype limit[2] = { s->llimit, s->hlimit }; \
98  \
99  for (int p = 0; p < s->nb_planes; p++) { \
100  const int slice_start = (s->height[p] * jobnr) / nb_jobs; \
101  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs; \
102  type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
103  ptrdiff_t dst_linesize = out->linesize[p] / sizeof(type); \
104  \
105  if (!((1 << p) & s->planes)) { \
106  av_image_copy_plane((uint8_t *)dst, out->linesize[p], \
107  in[radius]->data[p] + slice_start * in[radius]->linesize[p], \
108  in[radius]->linesize[p], \
109  s->linesize[p], slice_end - slice_start); \
110  continue; \
111  } \
112  \
113  for (int y = slice_start; y < slice_end; y++) { \
114  for (int x = 0; x < s->linesize[p] / sizeof(type); x++) { \
115  stype src = *(type *)(in[radius]->data[p] + y * in[radius]->linesize[p] + x * sizeof(type));\
116  float diff, abs_diff, avg; \
117  stype sum = 0; \
118  \
119  for (int i = 0; i < nb_inputs; i++) { \
120  sum += *(type *)(in[i]->data[p] + y * in[i]->linesize[p] + x * sizeof(type));\
121  } \
122  \
123  avg = sum * scale; \
124  diff = src - avg; \
125  abs_diff = fabsf(diff); \
126  \
127  if (abs_diff < threshold && abs_diff > tolerance) { \
128  float amp = copysignf(fminf(abs_diff * factor, limit[diff >= 0]), diff); \
129  dst[x] = clip(src + amp, depth); \
130  } else { \
131  dst[x] = src; \
132  } \
133  } \
134  \
135  dst += dst_linesize; \
136  } \
137  }
138 
139 #define CLIP8(x, depth) av_clip_uint8(lrintf(x))
140 #define CLIP16(x, depth) av_clip_uintp2_c(lrintf(x), depth)
141 #define NOP(x, depth) (x)
142 
143 static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
144 {
145  AmplifyContext *s = ctx->priv;
146  ThreadData *td = arg;
147  AVFrame **in = td->in;
148  AVFrame *out = td->out;
149  const int radius = s->radius;
150  const int nb_inputs = s->nb_inputs;
151  const float threshold = s->threshold;
152  const float tolerance = s->tolerance;
153  const float scale = 1.f / nb_inputs;
154  const float factor = s->factor;
155  const int depth = s->depth;
156 
157  if (s->depth <= 8) {
158  AMPLIFY_SLICE(uint8_t, int, CLIP8)
159  } else if (s->depth <= 16) {
160  AMPLIFY_SLICE(uint16_t, int, CLIP16)
161  } else {
162  AMPLIFY_SLICE(float, float, NOP)
163  }
164 
165  return 0;
166 }
167 
168 static int config_output(AVFilterLink *outlink)
169 {
170  AVFilterContext *ctx = outlink->src;
171  AmplifyContext *s = ctx->priv;
172  AVFilterLink *inlink = ctx->inputs[0];
173  int ret;
174 
175  s->desc = av_pix_fmt_desc_get(outlink->format);
176  if (!s->desc)
177  return AVERROR_BUG;
178  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
179  s->depth = s->desc->comp[0].depth;
180 
181  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
182  return ret;
183 
184  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
185  s->height[0] = s->height[3] = inlink->h;
186 
187  return 0;
188 }
189 
191 {
192  AmplifyContext *s = ctx->priv;
193  int i;
194 
195  if (s->frames) {
196  for (i = 0; i < s->nb_frames; i++)
197  av_frame_free(&s->frames[i]);
198  }
199  av_freep(&s->frames);
200 }
201 
203 {
204  AVFilterContext *ctx = inlink->dst;
205  AVFilterLink *outlink = ctx->outputs[0];
206  AmplifyContext *s = ctx->priv;
207  ThreadData td;
208  AVFrame *out;
209 
210  if (s->nb_frames < s->nb_inputs) {
211  s->frames[s->nb_frames] = in;
212  s->nb_frames++;
213  return 0;
214  } else {
215  av_frame_free(&s->frames[0]);
216  memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
217  s->frames[s->nb_inputs - 1] = in;
218  }
219 
220  if (!ctx->is_disabled) {
221  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
222  if (!out)
223  return AVERROR(ENOMEM);
224  av_frame_copy_props(out, s->frames[0]);
225 
226  td.out = out;
227  td.in = s->frames;
229  FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
230  } else {
231  out = av_frame_clone(s->frames[s->radius]);
232  if (!out)
233  return AVERROR(ENOMEM);
234  out->pts = s->frames[0]->pts;
235  }
236 
237  return ff_filter_frame(outlink, out);
238 }
239 
240 #define OFFSET(x) offsetof(AmplifyContext, x)
241 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
242 #define VFT AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
243 
244 static const AVOption amplify_options[] = {
245  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=2}, 1, 63, .flags = FLAGS },
246  { "factor", "set factor", OFFSET(factor), AV_OPT_TYPE_FLOAT, {.dbl=2}, 0, UINT16_MAX, .flags = VFT },
247  { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=10}, 0, UINT16_MAX, .flags = VFT },
248  { "tolerance", "set tolerance", OFFSET(tolerance), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, UINT16_MAX, .flags = VFT },
249  { "low", "set low limit for amplification", OFFSET(llimit), AV_OPT_TYPE_FLOAT, {.dbl=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
250  { "high", "set high limit for amplification", OFFSET(hlimit), AV_OPT_TYPE_FLOAT, {.dbl=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
251  { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, VFT },
252  { NULL },
253 };
254 
255 static const AVFilterPad inputs[] = {
256  {
257  .name = "default",
258  .type = AVMEDIA_TYPE_VIDEO,
259  .filter_frame = filter_frame,
260  },
261 };
262 
263 static const AVFilterPad outputs[] = {
264  {
265  .name = "default",
266  .type = AVMEDIA_TYPE_VIDEO,
267  .config_props = config_output,
268  },
269 };
270 
271 AVFILTER_DEFINE_CLASS(amplify);
272 
274  .name = "amplify",
275  .description = NULL_IF_CONFIG_SMALL("Amplify changes between successive video frames."),
276  .priv_size = sizeof(AmplifyContext),
277  .priv_class = &amplify_class,
281  .init = init,
282  .uninit = uninit,
284  .process_command = ff_filter_process_command,
285 };
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:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:526
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:505
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
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:1007
AmplifyContext::llimit
float llimit
Definition: vf_amplify.c:38
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2968
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_amplify.c:190
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:273
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:100
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:518
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(amplify)
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:525
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:520
AVOption
AVOption.
Definition: opt.h:251
FLAGS
#define FLAGS
Definition: vf_amplify.c:241
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:482
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_amplify.c:202
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:51
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:526
AmplifyContext::nb_frames
int nb_frames
Definition: vf_amplify.c:41
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:521
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:462
AmplifyContext::nb_planes
int nb_planes
Definition: vf_amplify.c:44
AmplifyContext::tolerance
float tolerance
Definition: vf_amplify.c:35
AMPLIFY_SLICE
#define AMPLIFY_SLICE(type, stype, clip)
Definition: vf_amplify.c:96
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3008
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:517
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:500
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AmplifyContext
Definition: vf_amplify.c:29
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:498
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:527
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:480
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:466
ThreadData::in
AVFrame ** in
Definition: vf_amplify.c:93
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
AmplifyContext::hlimit
float hlimit
Definition: vf_amplify.c:39
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:485
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:283
AmplifyContext::linesize
int linesize[4]
Definition: vf_amplify.c:45
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:494
VFT
#define VFT
Definition: vf_amplify.c:242
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:86
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:502
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
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:503
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:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:495
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
AmplifyContext::height
int height[4]
Definition: vf_amplify.c:46
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:524
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:479
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:493
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:465
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:609
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:73
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:515
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
OFFSET
#define OFFSET(x)
Definition: vf_amplify.c:240
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:87
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:463
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:501
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:736
NOP
#define NOP(x, depth)
Definition: vf_amplify.c:141
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:85
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:484
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:483
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:497
scale
static void scale(int *out, const int *in, const int w, const int h, const int shift)
Definition: vvc_intra.c:290
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:106
AmplifyContext::planes
int planes
Definition: vf_amplify.c:36
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:512
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:487
inputs
static const AVFilterPad inputs[]
Definition: vf_amplify.c:255
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:489
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:879
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:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:522
amplify_options
static const AVOption amplify_options[]
Definition: vf_amplify.c:244
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
AmplifyContext::radius
int radius
Definition: vf_amplify.c:32
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:245
AmplifyContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_amplify.c:31
outputs
static const AVFilterPad outputs[]
Definition: vf_amplify.c:263
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:499
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:814
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_amplify.c:79
AmplifyContext::factor
float factor
Definition: vf_amplify.c:33
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:107
AmplifyContext::nb_inputs
int nb_inputs
Definition: vf_amplify.c:40
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_amplify.c:168
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:262
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:481
AVFilter
Filter definition.
Definition: avfilter.h:166
AmplifyContext::frames
AVFrame ** frames
Definition: vf_amplify.c:48
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:519
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:486
AmplifyContext::depth
int depth
Definition: vf_amplify.c:43
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:491
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:523
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:513
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:409
factor
static const int factor[16]
Definition: vf_pp7.c:78
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:117
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:77
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:143
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
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:80
planes
static const struct @377 planes[]
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:155
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:79
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:488
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:492
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:464
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:134
CLIP8
#define CLIP8(x, depth)
Definition: vf_amplify.c:139
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:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:490
CLIP16
#define CLIP16(x, depth)
Definition: vf_amplify.c:140
AmplifyContext::threshold
float threshold
Definition: vf_amplify.c:34