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 
54 {
55  static const enum AVPixelFormat pixel_fmts[] = {
80  };
82  if (!formats)
83  return AVERROR(ENOMEM);
85 }
86 
88 {
89  AmplifyContext *s = ctx->priv;
90 
91  s->nb_inputs = s->radius * 2 + 1;
92 
93  s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
94  if (!s->frames)
95  return AVERROR(ENOMEM);
96 
97  return 0;
98 }
99 
100 typedef struct ThreadData {
102 } ThreadData;
103 
104 static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
105 {
106  AmplifyContext *s = ctx->priv;
107  ThreadData *td = arg;
108  AVFrame **in = td->in;
109  AVFrame *out = td->out;
110  const int radius = s->radius;
111  const int nb_inputs = s->nb_inputs;
112  const float threshold = s->threshold;
113  const float tolerance = s->tolerance;
114  const float factor = s->factor;
115  const int llimit = s->llimit;
116  const int hlimit = s->hlimit;
117  const int depth = s->depth;
118  int i, p, x, y;
119 
120  if (s->depth <= 8) {
121  for (p = 0; p < s->nb_planes; p++) {
122  const int slice_start = (s->height[p] * jobnr) / nb_jobs;
123  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
124  uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
125 
126  if (!((1 << p) & s->planes)) {
127  av_image_copy_plane(dst, out->linesize[p],
128  in[radius]->data[p] + slice_start * in[radius]->linesize[p],
129  in[radius]->linesize[p],
130  s->linesize[p], slice_end - slice_start);
131  continue;
132  }
133 
134  for (y = slice_start; y < slice_end; y++) {
135  for (x = 0; x < s->linesize[p]; x++) {
136  int src = in[radius]->data[p][y * in[radius]->linesize[p] + x];
137  float diff, avg;
138  int sum = 0;
139 
140  for (i = 0; i < nb_inputs; i++) {
141  sum += in[i]->data[p][y * in[i]->linesize[p] + x];
142  }
143 
144  avg = sum / (float)nb_inputs;
145  diff = src - avg;
146  if (fabsf(diff) < threshold && fabsf(diff) > tolerance) {
147  int amp;
148  if (diff < 0) {
149  amp = -FFMIN(FFABS(diff * factor), llimit);
150  } else {
151  amp = FFMIN(FFABS(diff * factor), hlimit);
152  }
153  dst[x] = av_clip_uint8(src + amp);
154  } else {
155  dst[x] = src;
156  }
157  }
158 
159  dst += out->linesize[p];
160  }
161  }
162  } else {
163  for (p = 0; p < s->nb_planes; p++) {
164  const int slice_start = (s->height[p] * jobnr) / nb_jobs;
165  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
166  uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
167 
168  if (!((1 << p) & s->planes)) {
169  av_image_copy_plane((uint8_t *)dst, out->linesize[p],
170  in[radius]->data[p] + slice_start * in[radius]->linesize[p],
171  in[radius]->linesize[p],
172  s->linesize[p], slice_end - slice_start);
173  continue;
174  }
175 
176  for (y = slice_start; y < slice_end; y++) {
177  for (x = 0; x < s->linesize[p] / 2; x++) {
178  int src = AV_RN16(in[radius]->data[p] + y * in[radius]->linesize[p] + x * 2);
179  float diff, avg;
180  int sum = 0;
181 
182  for (i = 0; i < nb_inputs; i++) {
183  sum += AV_RN16(in[i]->data[p] + y * in[i]->linesize[p] + x * 2);
184  }
185 
186  avg = sum / (float)nb_inputs;
187  diff = src - avg;
188 
189  if (fabsf(diff) < threshold && fabsf(diff) > tolerance) {
190  int amp;
191  if (diff < 0) {
192  amp = -FFMIN(FFABS(diff * factor), llimit);
193  } else {
194  amp = FFMIN(FFABS(diff * factor), hlimit);
195  }
196  dst[x] = av_clip_uintp2_c(src + amp, depth);
197  } else {
198  dst[x] = src;
199  }
200  }
201 
202  dst += out->linesize[p] / 2;
203  }
204  }
205  }
206 
207  return 0;
208 }
209 
210 static int config_output(AVFilterLink *outlink)
211 {
212  AVFilterContext *ctx = outlink->src;
213  AmplifyContext *s = ctx->priv;
214  AVFilterLink *inlink = ctx->inputs[0];
215  int ret;
216 
217  s->desc = av_pix_fmt_desc_get(outlink->format);
218  if (!s->desc)
219  return AVERROR_BUG;
220  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
221  s->depth = s->desc->comp[0].depth;
222 
223  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
224  return ret;
225 
226  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
227  s->height[0] = s->height[3] = inlink->h;
228 
229  return 0;
230 }
231 
233 {
234  AmplifyContext *s = ctx->priv;
235  int i;
236 
237  if (s->frames) {
238  for (i = 0; i < s->nb_frames; i++)
239  av_frame_free(&s->frames[i]);
240  }
241  av_freep(&s->frames);
242 }
243 
245 {
246  AVFilterContext *ctx = inlink->dst;
247  AVFilterLink *outlink = ctx->outputs[0];
248  AmplifyContext *s = ctx->priv;
249  ThreadData td;
250  AVFrame *out;
251 
252  if (s->nb_frames < s->nb_inputs) {
253  s->frames[s->nb_frames] = in;
254  s->nb_frames++;
255  return 0;
256  } else {
257  av_frame_free(&s->frames[0]);
258  memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
259  s->frames[s->nb_inputs - 1] = in;
260  }
261 
262  if (!ctx->is_disabled) {
263  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
264  if (!out)
265  return AVERROR(ENOMEM);
266  av_frame_copy_props(out, s->frames[0]);
267 
268  td.out = out;
269  td.in = s->frames;
270  ctx->internal->execute(ctx, amplify_frame, &td, NULL, FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
271  } else {
272  out = av_frame_clone(s->frames[s->radius]);
273  if (!out)
274  return AVERROR(ENOMEM);
275  out->pts = s->frames[0]->pts;
276  }
277 
278  return ff_filter_frame(outlink, out);
279 }
280 
281 #define OFFSET(x) offsetof(AmplifyContext, x)
282 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
283 #define VFT AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
284 
285 static const AVOption amplify_options[] = {
286  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=2}, 1, 63, .flags = FLAGS },
287  { "factor", "set factor", OFFSET(factor), AV_OPT_TYPE_FLOAT, {.dbl=2}, 0, UINT16_MAX, .flags = VFT },
288  { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=10}, 0, UINT16_MAX, .flags = VFT },
289  { "tolerance", "set tolerance", OFFSET(tolerance), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, UINT16_MAX, .flags = VFT },
290  { "low", "set low limit for amplification", OFFSET(llimit), AV_OPT_TYPE_INT, {.i64=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
291  { "high", "set high limit for amplification", OFFSET(hlimit), AV_OPT_TYPE_INT, {.i64=UINT16_MAX}, 0, UINT16_MAX, .flags = VFT },
292  { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, VFT },
293  { NULL },
294 };
295 
296 static const AVFilterPad inputs[] = {
297  {
298  .name = "default",
299  .type = AVMEDIA_TYPE_VIDEO,
300  .filter_frame = filter_frame,
301  },
302  { NULL }
303 };
304 
305 static const AVFilterPad outputs[] = {
306  {
307  .name = "default",
308  .type = AVMEDIA_TYPE_VIDEO,
309  .config_props = config_output,
310  },
311  { NULL }
312 };
313 
314 AVFILTER_DEFINE_CLASS(amplify);
315 
317  .name = "amplify",
318  .description = NULL_IF_CONFIG_SMALL("Amplify changes between successive video frames."),
319  .priv_size = sizeof(AmplifyContext),
320  .priv_class = &amplify_class,
322  .outputs = outputs,
323  .inputs = inputs,
324  .init = init,
325  .uninit = uninit,
328 };
formats
formats
Definition: signature.h:48
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:99
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:442
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:421
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
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
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:1094
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_amplify.c:53
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_amplify.c:232
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
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:204
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:434
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:324
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:302
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:441
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:436
AVOption
AVOption.
Definition: opt.h:248
data
const char data[16]
Definition: mxf.c:142
FLAGS
#define FLAGS
Definition: vf_amplify.c:282
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_amplify.c:244
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:149
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:502
AmplifyContext::nb_frames
int nb_frames
Definition: vf_amplify.c:43
video.h
AVFormatContext::internal
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1698
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:437
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:379
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:373
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:65
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:2613
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:433
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:417
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
AmplifyContext
Definition: vf_amplify.c:31
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
ThreadData::in
AVFrame ** in
Definition: vf_amplify.c:101
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:54
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
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:258
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:411
ff_set_common_formats
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:587
VFT
#define VFT
Definition: vf_amplify.c:283
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:419
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:420
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:412
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2032
AmplifyContext::height
int height[4]
Definition: vf_amplify.c:48
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:440
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:382
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:541
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
OFFSET
#define OFFSET(x)
Definition: vf_amplify.c:281
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:66
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:380
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:418
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
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:659
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
src
#define src
Definition: vp8dsp.c:255
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:401
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
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:414
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
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_acrusher.c:336
AmplifyContext::planes
int planes
Definition: vf_amplify.c:38
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
inputs
static const AVFilterPad inputs[]
Definition: vf_amplify.c:296
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
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
FFMIN
#define FFMIN(a, b)
Definition: common.h:105
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:177
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:438
amplify_options
static const AVOption amplify_options[]
Definition: vf_amplify.c:285
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
AmplifyContext::radius
int radius
Definition: vf_amplify.c:34
in
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)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
i
int i
Definition: input.c:407
AmplifyContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_amplify.c:33
outputs
static const AVFilterPad outputs[]
Definition: vf_amplify.c:305
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_amplify.c:87
AmplifyContext::factor
float factor
Definition: vf_amplify.c:35
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
uint8_t
uint8_t
Definition: audio_convert.c:194
AmplifyContext::nb_inputs
int nb_inputs
Definition: vf_amplify.c:42
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_amplify.c:210
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
AVFilter
Filter definition.
Definition: avfilter.h:145
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:435
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
AmplifyContext::depth
int depth
Definition: vf_amplify.c:45
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:408
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:245
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:439
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
av_clip_uint8
#define av_clip_uint8
Definition: common.h:128
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:341
factor
static const int factor[16]
Definition: vf_pp7.c:77
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
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:117
ff_vf_amplify
AVFilter ff_vf_amplify
Definition: vf_amplify.c:316
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:81
diff
static av_always_inline int diff(const uint32_t a, const uint32_t b)
Definition: vf_palettegen.c:136
amplify_frame
static int amplify_frame(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_amplify.c:104
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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:134
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
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:405
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
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:176
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:407
AmplifyContext::threshold
float threshold
Definition: vf_amplify.c:36