Go to the documentation of this file.
32 #define MAX_THREADS 32
86 #define OFFSET(x) offsetof(FFTdnoizContext, x)
87 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
88 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
90 {
"sigma",
"set denoise strength",
92 {
"amount",
"set amount of denoising",
94 {
"block",
"set block size",
96 {
"overlap",
"set block overlap",
98 {
"method",
"set method of denoising",
100 {
"wiener",
"wiener method",
102 {
"hard",
"hard thresholding",
104 {
"prev",
"set number of previous frames for temporal denoising",
106 {
"next",
"set number of next frames for temporal denoising",
108 {
"planes",
"set planes to filter",
150 for (
int j = 0; j < rw; j++) {
151 const int i =
abs(j + off);
159 for (
int j = 0; j < rw; j++)
166 uint16_t *
src = (uint16_t *)srcp;
168 for (
int j = 0; j < rw; j++) {
169 const int i =
abs(j + off);
177 uint16_t *dst = (uint16_t *)dstp;
179 for (
int j = 0; j < rw; j++)
193 s->depth =
desc->comp[0].depth;
204 s->planes[0].planewidth =
s->planes[3].planewidth =
inlink->w;
206 s->planes[0].planeheight =
s->planes[3].planeheight =
inlink->h;
211 for (
int i = 0;
i <
s->nb_threads;
i++) {
212 float scale = 1.f, iscale = 1.f;
216 0,
s->block_size, &
scale, 0)) < 0 ||
218 1,
s->block_size, &iscale, 0)) < 0 ||
220 0, 1 +
s->nb_prev +
s->nb_next, &
scale, 0)) < 0 ||
222 1, 1 +
s->nb_prev +
s->nb_next, &iscale, 0)) < 0)
226 for (
i = 0;
i <
s->nb_planes;
i++) {
230 p->
b =
s->block_size;
231 p->
n = 1.f / (p->
b * p->
b);
241 for (
int j = 0; j <
s->nb_threads; j++) {
249 if (
s->nb_prev > 0) {
254 if (
s->nb_next > 0) {
267 for (
int y = 0; y <
s->block_size; y++) {
268 for (
int x = 0; x <
s->block_size; x++)
269 s->win[y][x] = lut[y] * lut[x];
276 uint8_t *srcp,
int src_linesize,
277 float *
buffer,
int buffer_linesize,
int plane,
278 int jobnr,
int y,
int x)
284 const int overlap = p->
o;
285 const int hoverlap = overlap / 2;
287 const int bpp = (
s->depth + 7) / 8;
289 const float scale = 1.f / ((1.f +
s->nb_prev +
s->nb_next) *
s->block_size *
s->block_size);
293 const int woff = -hoverlap;
294 const int hoff = -hoverlap;
300 buffer_linesize /=
sizeof(
float);
302 for (
int i = 0;
i < rh;
i++) {
303 uint8_t *
src = srcp + src_linesize *
abs(y *
size +
i + hoff) + x *
size * bpp;
305 s->import_row(dst,
src, rw,
scale,
s->win[
i], woff);
306 for (
int j = rw; j <
block; j++) {
307 dst[j].
re = dst[rw - 1].
re;
313 dst += data_linesize;
314 dst_out += data_linesize;
319 for (
int j = 0; j <
block; j++) {
320 dst[j].
re = ddst[j].
re;
321 dst[j].
im = ddst[j].
im;
324 dst += data_linesize;
330 for (
int j = 0; j <
block; j++)
331 dst[j] = ssrc[j * data_linesize +
i];
334 dst += data_linesize;
335 bdst += buffer_linesize;
340 uint8_t *dstp,
int dst_linesize,
341 float *
buffer,
int buffer_linesize,
int plane,
342 int jobnr,
int y,
int x)
345 const int depth =
s->depth;
346 const int bpp = (depth + 7) / 8;
350 const int overlap = p->
o;
351 const int hoverlap = overlap / 2;
363 buffer_linesize /=
sizeof(
float);
367 for (
int j = 0; j <
block; j++)
368 hdst[j * data_linesize +
i] = vdst[j];
370 vdst += data_linesize;
371 bsrc += buffer_linesize;
374 hdst = hdata + hoverlap * data_linesize;
376 uint8_t *dst = dstp + dst_linesize * (y *
size +
i) + x *
size * bpp;
379 s->export_row(hdst_out + hoverlap, dst, rw, depth,
s->win[
i + hoverlap] + hoverlap);
381 hdst += data_linesize;
382 hdst_out += data_linesize;
392 const float depthx = (1 << (
s->depth - 8)) * (1 << (
s->depth - 8));
393 const float sigma =
s->sigma * depthx / (3.f *
s->block_size *
s->block_size);
394 const float limit = 1.f -
s->amount;
396 const int method =
s->method;
397 float *cbuff = cbuffer;
398 float *pbuff = pbuffer;
399 float *nbuff = nbuffer;
402 for (
int j = 0; j <
block; j++) {
406 buffer[0].re = pbuff[2 * j ];
407 buffer[0].im = pbuff[2 * j + 1];
409 buffer[1].re = cbuff[2 * j ];
410 buffer[1].im = cbuff[2 * j + 1];
412 buffer[2].re = nbuff[2 * j ];
413 buffer[2].im = nbuff[2 * j + 1];
417 for (
int z = 0; z < 3; z++) {
418 const float re = outbuffer[z].
re;
419 const float im = outbuffer[z].
im;
420 const float power = re * re + im * im;
438 cbuff[2 * j + 0] =
buffer[1].re;
439 cbuff[2 * j + 1] =
buffer[1].im;
442 cbuff += buffer_linesize;
443 pbuff += buffer_linesize;
444 nbuff += buffer_linesize;
454 const float depthx = (1 << (
s->depth - 8)) * (1 << (
s->depth - 8));
455 const float sigma =
s->sigma * depthx / (2.f *
s->block_size *
s->block_size);
456 const float limit = 1.f -
s->amount;
458 const int method =
s->method;
459 float *cbuff = cbuffer;
460 float *pbuff = pbuffer;
463 for (
int j = 0; j <
block; j++) {
467 buffer[0].re = pbuff[2 * j ];
468 buffer[0].im = pbuff[2 * j + 1];
470 buffer[1].re = cbuff[2 * j ];
471 buffer[1].im = cbuff[2 * j + 1];
475 for (
int z = 0; z < 2; z++) {
476 const float re = outbuffer[z].
re;
477 const float im = outbuffer[z].
im;
478 const float power = re * re + im * im;
496 cbuff[2 * j + 0] =
buffer[1].re;
497 cbuff[2 * j + 1] =
buffer[1].im;
500 cbuff += buffer_linesize;
501 pbuff += buffer_linesize;
510 const int method =
s->method;
512 const float depthx = (1 << (
s->depth - 8)) * (1 << (
s->depth - 8));
513 const float sigma =
s->sigma * depthx / (
s->block_size *
s->block_size);
514 const float limit = 1.f -
s->amount;
518 for (
int j = 0; j <
block; j++) {
522 im = buff[j * 2 + 1];
523 power = re * re + im * im;
534 buff[j * 2 + 1] *=
factor;
537 buff += buffer_linesize;
542 int jobnr,
int nb_jobs)
547 for (
int plane = 0; plane <
s->nb_planes; plane++) {
549 const int nox = p->
nox;
550 const int noy = p->
noy;
552 const int slice_end = (noy * (jobnr+1)) / nb_jobs;
554 if (!((1 << plane) &
s->planesf) ||
ctx->is_disabled)
558 for (
int x = 0; x < nox; x++) {
575 if (
s->next &&
s->prev) {
577 }
else if (
s->next) {
579 }
else if (
s->prev) {
603 if (
s->nb_next > 0 &&
s->nb_prev > 0) {
609 if (!
s->prev &&
s->cur) {
616 }
else if (
s->nb_next > 0) {
623 }
else if (
s->nb_prev > 0) {
648 FFMIN(
s->planes[0].noy,
s->nb_threads));
650 for (plane = 0; plane <
s->nb_planes; plane++) {
653 if (!((1 << plane) &
s->planesf) ||
ctx->is_disabled) {
656 s->cur->data[plane],
s->cur->linesize[plane],
662 if (
s->nb_next == 0 &&
s->nb_prev == 0) {
683 if (
s->next &&
s->nb_next > 0)
706 for (
i = 0;
i < 4;
i++) {
709 for (
int j = 0; j <
s->nb_threads; j++) {
720 for (
i = 0;
i <
s->nb_threads;
i++) {
757 .priv_class = &fftdnoiz_class,
static void filter_block2d(FFTdnoizContext *s, int plane, int jobnr)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
#define AV_PIX_FMT_YUVA422P16
static int denoise(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_GBRAP16
void(* import_row)(AVComplexFloat *dst, uint8_t *src, int rw, float scale, float *win, int off)
AVPixelFormat
Pixel format.
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
static int request_frame(AVFilterLink *outlink)
void(* export_row)(AVComplexFloat *src, uint8_t *dst, int rw, int depth, float *win)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
#define AVERROR_EOF
End of file.
float * buffer[MAX_THREADS][BSIZE]
#define FILTER_PIXFMTS_ARRAY(array)
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
static void import_row16(AVComplexFloat *dst, uint8_t *srcp, int rw, float scale, float *win, int off)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define AV_PIX_FMT_YUVA422P9
This structure describes decoded (raw) audio or video data.
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.
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
static const AVFilterPad fftdnoiz_outputs[]
AVTXContext * ifft[MAX_THREADS]
#define AV_PIX_FMT_YUV420P10
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
#define WIN_FUNC_OPTION(win_func_opt_name, win_func_offset, flag, default_window_func)
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
const char * name
Filter name.
A link between two filters.
#define AV_PIX_FMT_YUVA422P10
av_cold int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type, int inv, int len, const void *scale, uint64_t flags)
Initialize a transform context with the given configuration (i)MDCTs with an odd length are currently...
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.
static float win(SuperEqualizerContext *s, float n, int N)
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
static SDL_Window * window
#define AV_PIX_FMT_GBRP14
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUV422P9
static void import_block(FFTdnoizContext *s, uint8_t *srcp, int src_linesize, float *buffer, int buffer_linesize, int plane, int jobnr, int y, int x)
#define AV_PIX_FMT_GRAY16
A filter pad used for either input or output.
#define AV_PIX_FMT_YUV444P10
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
AVComplexFloat * vdata[MAX_THREADS]
#define AV_PIX_FMT_YUV422P16
void(* av_tx_fn)(AVTXContext *s, void *out, void *in, ptrdiff_t stride)
Function pointer to a function to perform the transform.
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP12
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_PIX_FMT_YUV444P16
#define AV_CEIL_RSHIFT(a, b)
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
@ AV_TX_FLOAT_FFT
Standard complex to complex FFT with sample data type of AVComplexFloat, AVComplexDouble or AVComplex...
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
float win[MAX_BLOCK][MAX_BLOCK]
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_GRAY14
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
static enum AVPixelFormat pix_fmts[]
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FILTER_INPUTS(array)
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
#define AV_PIX_FMT_GRAY10
AVComplexFloat * hdata[MAX_THREADS]
#define AV_PIX_FMT_GBRP16
Describe the class of an AVClass context structure.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
AVTXContext * fft_r[MAX_THREADS]
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUV440P10
static void generate_window_func(float *lut, int N, int win_func, float *overlap)
#define AV_PIX_FMT_YUV422P10
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
static int config_input(AVFilterLink *inlink)
static void filter_block3d2(FFTdnoizContext *s, int plane, float *pbuffer, float *nbuffer, int jobnr)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
float fmaxf(float, float)
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV444P12
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
AVFilterContext * src
source filter
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.
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
#define AV_PIX_FMT_YUVA444P10
av_cold void av_tx_uninit(AVTXContext **ctx)
Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.
static void filter_block3d1(FFTdnoizContext *s, int plane, float *pbuffer, int jobnr)
AVComplexFloat * vdata_out[MAX_THREADS]
#define i(width, name, range_min, range_max)
int w
agreed upon image width
#define AV_PIX_FMT_GBRP12
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Used for passing data between threads.
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
const char * name
Pad name.
void * av_calloc(size_t nmemb, size_t size)
#define AV_PIX_FMT_YUV444P9
static double limit(double x)
static av_cold void uninit(AVFilterContext *ctx)
static void export_block(FFTdnoizContext *s, uint8_t *dstp, int dst_linesize, float *buffer, int buffer_linesize, int plane, int jobnr, int y, int x)
AVTXContext * ifft_r[MAX_THREADS]
#define AV_PIX_FMT_YUVA444P9
static const AVFilterPad fftdnoiz_inputs[]
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
AVComplexFloat * hdata_out[MAX_THREADS]
static float power(float r, float g, float b, float max)
const AVFilter ff_vf_fftdnoiz
int h
agreed upon image height
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
#define AV_PIX_FMT_YUVA422P12
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
static void export_row16(AVComplexFloat *src, uint8_t *dstp, int rw, int depth, float *win)
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static const int factor[16]
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
static void import_row8(AVComplexFloat *dst, uint8_t *src, int rw, float scale, float *win, int off)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
AVTXContext * fft[MAX_THREADS]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static void scale(int *out, const int *in, const int w, const int h, const int shift)
#define FILTER_OUTPUTS(array)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
The exact code depends on how similar the blocks are and how related they are to the block
static void export_row8(AVComplexFloat *src, uint8_t *dst, int rw, int depth, float *win)
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV444P14
AVFILTER_DEFINE_CLASS(fftdnoiz)
static const AVOption fftdnoiz_options[]
#define AV_PIX_FMT_GRAY12
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14