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/mem.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 
26 #include "avfilter.h"
27 #include "internal.h"
28 #include "video.h"
29 
30 typedef struct AmplifyContext {
31  const AVClass *class;
33  int radius;
34  float factor;
35  float threshold;
36  float tolerance;
37  int planes;
38 
39  float llimit;
40  float hlimit;
41  int nb_inputs;
42  int nb_frames;
43 
44  int depth;
45  int nb_planes;
46  int linesize[4];
47  int height[4];
48 
51 
52 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 #define AMPLIFY_SLICE(type, stype, clip) \
98  const stype limit[2] = { s->llimit, s->hlimit }; \
99  \
100  for (int p = 0; p < s->nb_planes; p++) { \
101  const int slice_start = (s->height[p] * jobnr) / nb_jobs; \
102  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs; \
103  type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
104  ptrdiff_t dst_linesize = out->linesize[p] / sizeof(type); \
105  \
106  if (!((1 << p) & s->planes)) { \
107  av_image_copy_plane((uint8_t *)dst, out->linesize[p], \
108  in[radius]->data[p] + slice_start * in[radius]->linesize[p], \
109  in[radius]->linesize[p], \
110  s->linesize[p], slice_end - slice_start); \
111  continue; \
112  } \
113  \
114  for (int y = slice_start; y < slice_end; y++) { \
115  for (int x = 0; x < s->linesize[p] / sizeof(type); x++) { \
116  stype src = *(type *)(in[radius]->data[p] + y * in[radius]->linesize[p] + x * sizeof(type));\
117  float diff, abs_diff, avg; \
118  stype sum = 0; \
119  \
120  for (int i = 0; i < nb_inputs; i++) { \
121  sum += *(type *)(in[i]->data[p] + y * in[i]->linesize[p] + x * sizeof(type));\
122  } \
123  \
124  avg = sum * scale; \
125  diff = src - avg; \
126  abs_diff = fabsf(diff); \
127  \
128  if (abs_diff < threshold && abs_diff > tolerance) { \
129  float amp = copysignf(fminf(abs_diff * factor, limit[diff >= 0]), diff); \
130  dst[x] = clip(src + amp, depth); \
131  } else { \
132  dst[x] = src; \
133  } \
134  } \
135  \
136  dst += dst_linesize; \
137  } \
138  }
139 
140 #define CLIP8(x, depth) av_clip_uint8(lrintf(x))
141 #define CLIP16(x, depth) av_clip_uintp2_c(lrintf(x), depth)
142 #define NOP(x, depth) (x)
143 
144 static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
145 {
146  AmplifyContext *s = ctx->priv;
147  ThreadData *td = arg;
148  AVFrame **in = td->in;
149  AVFrame *out = td->out;
150  const int radius = s->radius;
151  const int nb_inputs = s->nb_inputs;
152  const float threshold = s->threshold;
153  const float tolerance = s->tolerance;
154  const float scale = 1.f / nb_inputs;
155  const float factor = s->factor;
156  const int depth = s->depth;
157 
158  if (s->depth <= 8) {
159  AMPLIFY_SLICE(uint8_t, int, CLIP8)
160  } else if (s->depth <= 16) {
161  AMPLIFY_SLICE(uint16_t, int, CLIP16)
162  } else {
163  AMPLIFY_SLICE(float, float, NOP)
164  }
165 
166  return 0;
167 }
168 
169 static int config_output(AVFilterLink *outlink)
170 {
171  AVFilterContext *ctx = outlink->src;
172  AmplifyContext *s = ctx->priv;
173  AVFilterLink *inlink = ctx->inputs[0];
174  int ret;
175 
176  s->desc = av_pix_fmt_desc_get(outlink->format);
177  if (!s->desc)
178  return AVERROR_BUG;
179  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
180  s->depth = s->desc->comp[0].depth;
181 
182  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
183  return ret;
184 
185  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
186  s->height[0] = s->height[3] = inlink->h;
187 
188  return 0;
189 }
190 
192 {
193  AmplifyContext *s = ctx->priv;
194  int i;
195 
196  if (s->frames) {
197  for (i = 0; i < s->nb_frames; i++)
198  av_frame_free(&s->frames[i]);
199  }
200  av_freep(&s->frames);
201 }
202 
204 {
205  AVFilterContext *ctx = inlink->dst;
206  AVFilterLink *outlink = ctx->outputs[0];
207  AmplifyContext *s = ctx->priv;
208  ThreadData td;
209  AVFrame *out;
210 
211  if (s->nb_frames < s->nb_inputs) {
212  s->frames[s->nb_frames] = in;
213  s->nb_frames++;
214  return 0;
215  } else {
216  av_frame_free(&s->frames[0]);
217  memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
218  s->frames[s->nb_inputs - 1] = in;
219  }
220 
221  if (!ctx->is_disabled) {
222  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
223  if (!out)
224  return AVERROR(ENOMEM);
225  av_frame_copy_props(out, s->frames[0]);
226 
227  td.out = out;
228  td.in = s->frames;
230  FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
231  } else {
232  out = av_frame_clone(s->frames[s->radius]);
233  if (!out)
234  return AVERROR(ENOMEM);
235  out->pts = s->frames[0]->pts;
236  }
237 
238  return ff_filter_frame(outlink, out);
239 }
240 
241 #define OFFSET(x) offsetof(AmplifyContext, x)
242 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
243 #define VFT AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
244 
245 static const AVOption amplify_options[] = {
246  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=2}, 1, 63, .flags = FLAGS },
247  { "factor", "set factor", OFFSET(factor), AV_OPT_TYPE_FLOAT, {.dbl=2}, 0, UINT16_MAX, .flags = VFT },
248  { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=10}, 0, UINT16_MAX, .flags = VFT },
249  { "tolerance", "set tolerance", OFFSET(tolerance), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, UINT16_MAX, .flags = VFT },
250  { "low", "set low limit for amplification", OFFSET(llimit), AV_OPT_TYPE_FLOAT, {.dbl=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
251  { "high", "set high limit for amplification", OFFSET(hlimit), AV_OPT_TYPE_FLOAT, {.dbl=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
252  { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, VFT },
253  { NULL },
254 };
255 
256 static const AVFilterPad inputs[] = {
257  {
258  .name = "default",
259  .type = AVMEDIA_TYPE_VIDEO,
260  .filter_frame = filter_frame,
261  },
262 };
263 
264 static const AVFilterPad outputs[] = {
265  {
266  .name = "default",
267  .type = AVMEDIA_TYPE_VIDEO,
268  .config_props = config_output,
269  },
270 };
271 
272 AVFILTER_DEFINE_CLASS(amplify);
273 
275  .name = "amplify",
276  .description = NULL_IF_CONFIG_SMALL("Amplify changes between successive video frames."),
277  .priv_size = sizeof(AmplifyContext),
278  .priv_class = &amplify_class,
282  .init = init,
283  .uninit = uninit,
285  .process_command = ff_filter_process_command,
286 };
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:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
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:55
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
AmplifyContext::llimit
float llimit
Definition: vf_amplify.c:39
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_amplify.c:191
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:274
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(amplify)
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
AVOption
AVOption.
Definition: opt.h:357
FLAGS
#define FLAGS
Definition: vf_amplify.c:242
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_amplify.c:203
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:52
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:527
AmplifyContext::nb_frames
int nb_frames
Definition: vf_amplify.c:42
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:458
AmplifyContext::nb_planes
int nb_planes
Definition: vf_amplify.c:45
planes
static const struct @436 planes[]
AmplifyContext::tolerance
float tolerance
Definition: vf_amplify.c:36
AMPLIFY_SLICE
#define AMPLIFY_SLICE(type, stype, clip)
Definition: vf_amplify.c:97
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3005
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AmplifyContext
Definition: vf_amplify.c:30
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:462
ThreadData::in
AVFrame ** in
Definition: vf_amplify.c:94
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
AmplifyContext::hlimit
float hlimit
Definition: vf_amplify.c:40
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
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:46
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
VFT
#define VFT
Definition: vf_amplify.c:243
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:498
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:499
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:491
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
AmplifyContext::height
int height[4]
Definition: vf_amplify.c:47
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
ctx
AVFormatContext * ctx
Definition: movenc.c:49
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:461
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:593
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:511
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
OFFSET
#define OFFSET(x)
Definition: vf_amplify.c:241
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:459
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
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:709
NOP
#define NOP(x, depth)
Definition: vf_amplify.c:142
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:480
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
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:493
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:94
AmplifyContext::planes
int planes
Definition: vf_amplify.c:37
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:508
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
inputs
static const AVFilterPad inputs[]
Definition: vf_amplify.c:256
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
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:887
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:518
amplify_options
static const AVOption amplify_options[]
Definition: vf_amplify.c:245
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:248
AmplifyContext::radius
int radius
Definition: vf_amplify.c:33
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AmplifyContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_amplify.c:32
outputs
static const AVFilterPad outputs[]
Definition: vf_amplify.c:264
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:495
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:827
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_amplify.c:80
AmplifyContext::factor
float factor
Definition: vf_amplify.c:34
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:41
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_amplify.c:169
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:264
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
AVFilter
Filter definition.
Definition: avfilter.h:166
AmplifyContext::frames
AVFrame ** frames
Definition: vf_amplify.c:49
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:515
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
AmplifyContext::depth
int depth
Definition: vf_amplify.c:44
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:509
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:407
factor
static const int factor[16]
Definition: vf_pp7.c:79
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
mem.h
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
scale
static void scale(int *out, const int *in, const int w, const int h, const int shift)
Definition: intra.c:291
amplify_frame
static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_amplify.c:144
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
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Definition: opt.h:244
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:484
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
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:140
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:486
CLIP16
#define CLIP16(x, depth)
Definition: vf_amplify.c:141
AmplifyContext::threshold
float threshold
Definition: vf_amplify.c:35