Go to the documentation of this file.
45 #define MAX_NB_THREADS 32
121 const uint8_t *
src,
int src_stride,
124 int plane,
int nb_jobs);
126 const uint8_t *
src,
int src_linesize,
127 const uint8_t *
ref,
int ref_linesize,
128 int y,
int x,
int plane,
int jobnr);
131 #define OFFSET(x) offsetof(BM3DContext, x)
132 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
135 {
"sigma",
"set denoising strength",
137 {
"block",
"set size of local patch",
139 {
"bstep",
"set sliding step for processing blocks",
141 {
"group",
"set maximal number of similar blocks",
143 {
"range",
"set block matching range",
145 {
"mstep",
"set step for block matching",
147 {
"thmse",
"set threshold of mean square error for block matching",
149 {
"hdthr",
"set hard threshold for 3D transfer domain",
151 {
"estim",
"set filtering estimation mode",
153 {
"basic",
"basic estimate",
155 {
"final",
"final estimate",
157 {
"ref",
"have reference stream",
159 {
"planes",
"set planes to filter",
196 search_range = search_range / search_step * search_step;
198 if (
pos == plane_boundary) {
200 }
else if (
pos > plane_boundary) {
217 static int search_boundary(
int plane_boundary,
int search_range,
int search_step,
int vertical,
int y,
int x)
219 return do_search_boundary(vertical ? y : x, plane_boundary, search_range, search_step);
231 const uint8_t *srcp =
src +
pos->y * src_stride +
pos->x;
232 const uint8_t *refp =
src + r_y * src_stride + r_x;
233 const int block_size =
s->block_size;
237 for (
y = 0;
y < block_size;
y++) {
238 for (
x = 0;
x < block_size;
x++) {
239 double temp = refp[
x] - srcp[
x];
252 const uint16_t *srcp = (uint16_t *)
src +
pos->y * src_stride / 2 +
pos->x;
253 const uint16_t *refp = (uint16_t *)
src + r_y * src_stride / 2 + r_x;
254 const int block_size =
s->block_size;
258 for (
y = 0;
y < block_size;
y++) {
259 for (
x = 0;
x < block_size;
x++) {
260 double temp = refp[
x] - srcp[
x];
264 srcp += src_stride / 2;
265 refp += src_stride / 2;
272 const PosCode *search_pos,
int search_size,
float th_mse,
273 int r_y,
int r_x,
int plane,
int jobnr)
276 double MSE2SSE =
s->group_size *
s->block_size *
s->block_size * src_range * src_range / (
double)(
s->max *
s->max);
277 double distMul = 1. / MSE2SSE;
278 double th_sse = th_mse * MSE2SSE;
281 for (
int i = 0;
i < search_size;
i++) {
285 dist =
s->do_block_ssd(
s, &
pos,
src, src_stride, r_y, r_x);
288 if (dist <= th_sse && dist != 0) {
289 const double score = dist * distMul;
295 if (
index >=
s->group_size)
296 index =
s->group_size - 1;
310 int exclude_cur_pos,
int plane,
int jobnr)
313 const int width =
s->planewidth[plane];
314 const int height =
s->planeheight[plane];
315 const int block_size =
s->block_size;
316 const int step =
s->bm_step;
324 for (
int j = t; j <=
b; j +=
step) {
325 for (
int i = l;
i <=
r;
i +=
step) {
328 if (exclude_cur_pos > 0 && j ==
y &&
i ==
x) {
338 if (exclude_cur_pos == 1) {
350 int j,
int i,
int plane,
int jobnr)
354 if (
s->group_size == 1 ||
s->th_mse <= 0.f) {
367 int y,
int x,
int block_size,
float *
dst)
369 const uint8_t *
src = srcp +
y * src_linesize +
x;
371 for (
int j = 0; j < block_size; j++)
376 int y,
int x,
int block_size,
float *
dst)
378 const uint16_t *
src = (uint16_t *)srcp +
y * src_linesize / 2 +
x;
380 for (
int j = 0; j < block_size; j++)
385 const uint8_t *
ref,
int ref_linesize,
386 int y,
int x,
int plane,
int jobnr)
389 const int pblock_size =
s->pblock_size;
390 const int buffer_linesize =
s->pblock_size *
s->pblock_size;
392 const int block_size =
s->block_size;
393 const int width =
s->planewidth[plane];
394 const int pgroup_size =
s->pgroup_size;
395 const int group_size =
s->group_size;
402 float den_weight, num_weight;
405 for (
int k = 0; k < nb_match_blocks; k++) {
409 for (
int i = 0;
i < block_size;
i++) {
410 s->get_block_row(
src, src_linesize,
y +
i,
x, block_size, bufferh + pblock_size *
i);
411 sc->
tx_fn(sc->
dctf, buffert, bufferh + pblock_size *
i,
sizeof(
float));
412 for (
int j = 0; j < block_size; j++)
413 bufferv[j * pblock_size +
i] = buffert[j];
416 for (
int i = 0;
i < block_size;
i++) {
417 sc->
tx_fn(sc->
dctf, buffert, bufferv +
i * pblock_size,
sizeof(
float));
418 memcpy(
buffer + k * buffer_linesize +
i * pblock_size,
419 buffert, block_size *
sizeof(
float));
423 for (
int i = 0;
i < block_size;
i++) {
424 for (
int j = 0; j < block_size; j++) {
425 for (
int k = 0; k < nb_match_blocks; k++)
426 bufferz[k] =
buffer[buffer_linesize * k +
i * pblock_size + j];
428 sc->
tx_fn_g(sc->
gdctf, bufferz, bufferz,
sizeof(
float));
429 bufferz += pgroup_size;
433 threshold[0] =
s->hard_threshold *
s->sigma *
M_SQRT2 * 4.f * block_size * block_size * (1 << (
s->depth - 8)) / 255.f;
434 threshold[1] = threshold[0] *
sqrtf(2.
f);
435 threshold[2] = threshold[0] * 2.f;
436 threshold[3] = threshold[0] *
sqrtf(8.
f);
439 for (
int i = 0;
i < block_size;
i++) {
440 for (
int j = 0; j < block_size; j++) {
441 for (
int k = 0; k < nb_match_blocks; k++) {
442 const float thresh = threshold[(j == 0) + (
i == 0) + (k == 0)];
444 if (bufferz[k] > thresh || bufferz[k] < -thresh) {
450 bufferz += pgroup_size;
456 for (
int i = 0;
i < block_size;
i++) {
457 for (
int j = 0; j < block_size; j++) {
460 for (
int k = 0; k < nb_match_blocks; k++)
461 buffer[buffer_linesize * k +
i * pblock_size + j] = bufferz[k];
462 bufferz += pgroup_size;
466 den_weight = retained < 1 ? 1.f : 1.f / retained;
467 num_weight = den_weight;
470 for (
int k = 0; k < nb_match_blocks; k++) {
474 for (
int i = 0;
i < block_size;
i++) {
475 memcpy(bufferv +
i * pblock_size,
476 buffer + k * buffer_linesize +
i * pblock_size,
477 block_size *
sizeof(
float));
480 for (
int i = 0;
i < block_size;
i++) {
481 sc->
itx_fn(sc->
dcti, buffert, bufferv +
i * pblock_size,
sizeof(
float));
482 for (
int j = 0; j < block_size; j++)
483 bufferh[j * pblock_size +
i] = buffert[j];
486 for (
int i = 0;
i < block_size;
i++) {
487 sc->
itx_fn(sc->
dcti, buffert, bufferh + pblock_size *
i,
sizeof(
float));
488 for (
int j = 0; j < block_size; j++) {
489 num[j] += buffert[j] * num_weight;
490 den[j] += den_weight;
499 const uint8_t *
ref,
int ref_linesize,
500 int y,
int x,
int plane,
int jobnr)
503 const int pblock_size =
s->pblock_size;
504 const int buffer_linesize =
s->pblock_size *
s->pblock_size;
506 const int block_size =
s->block_size;
507 const int width =
s->planewidth[plane];
508 const int pgroup_size =
s->pgroup_size;
509 const int group_size =
s->group_size;
510 const float sigma_sqr =
s->sigma *
s->sigma;
519 float den_weight, num_weight;
522 for (
int k = 0; k < nb_match_blocks; k++) {
526 for (
int i = 0;
i < block_size;
i++) {
527 s->get_block_row(
src, src_linesize,
y +
i,
x, block_size, bufferh + pblock_size *
i);
528 s->get_block_row(
ref, ref_linesize,
y +
i,
x, block_size, rbufferh + pblock_size *
i);
529 sc->
tx_fn(sc->
dctf, bufferh + pblock_size *
i, bufferh + pblock_size *
i,
sizeof(
float));
530 sc->
tx_fn(sc->
dctf, rbufferh + pblock_size *
i, rbufferh + pblock_size *
i,
sizeof(
float));
533 for (
int i = 0;
i < block_size;
i++) {
534 for (
int j = 0; j < block_size; j++) {
535 bufferv[
i * pblock_size + j] = bufferh[j * pblock_size +
i];
536 rbufferv[
i * pblock_size + j] = rbufferh[j * pblock_size +
i];
538 sc->
tx_fn(sc->
dctf, bufferv +
i * pblock_size, bufferv +
i * pblock_size,
sizeof(
float));
539 sc->
tx_fn(sc->
dctf, rbufferv +
i * pblock_size, rbufferv +
i * pblock_size,
sizeof(
float));
542 for (
int i = 0;
i < block_size;
i++) {
543 memcpy(
buffer + k * buffer_linesize +
i * pblock_size,
544 bufferv +
i * pblock_size, block_size *
sizeof(
float));
545 memcpy(rbuffer + k * buffer_linesize +
i * pblock_size,
546 rbufferv +
i * pblock_size, block_size *
sizeof(
float));
550 for (
int i = 0;
i < block_size;
i++) {
551 for (
int j = 0; j < block_size; j++) {
552 for (
int k = 0; k < nb_match_blocks; k++) {
553 bufferz[k] =
buffer[buffer_linesize * k +
i * pblock_size + j];
554 rbufferz[k] = rbuffer[buffer_linesize * k +
i * pblock_size + j];
556 if (group_size > 1) {
557 sc->
tx_fn_g(sc->
gdctf, bufferz, bufferz,
sizeof(
float));
558 sc->
tx_fn_g(sc->
gdctf, rbufferz, rbufferz,
sizeof(
float));
560 bufferz += pgroup_size;
561 rbufferz += pgroup_size;
568 for (
int i = 0;
i < block_size;
i++) {
569 for (
int j = 0; j < block_size; j++) {
570 for (
int k = 0; k < nb_match_blocks; k++) {
571 const float ref_sqr = rbufferz[k] * rbufferz[k];
572 float wiener_coef = ref_sqr / (ref_sqr + sigma_sqr);
574 if (
isnan(wiener_coef))
576 bufferz[k] *= wiener_coef;
577 l2_wiener += wiener_coef * wiener_coef;
579 bufferz += pgroup_size;
580 rbufferz += pgroup_size;
586 for (
int i = 0;
i < block_size;
i++) {
587 for (
int j = 0; j < block_size; j++) {
590 for (
int k = 0; k < nb_match_blocks; k++) {
591 buffer[buffer_linesize * k +
i * pblock_size + j] = bufferz[k];
593 bufferz += pgroup_size;
597 l2_wiener =
FFMAX(l2_wiener, 1e-15
f);
598 den_weight = 1.f / l2_wiener;
599 num_weight = den_weight;
601 for (
int k = 0; k < nb_match_blocks; k++) {
605 for (
int i = 0;
i < block_size;
i++) {
606 memcpy(bufferv +
i * pblock_size,
607 buffer + k * buffer_linesize +
i * pblock_size,
608 block_size *
sizeof(
float));
611 for (
int i = 0;
i < block_size;
i++) {
612 sc->
itx_fn(sc->
dcti, bufferv + pblock_size *
i, bufferv + pblock_size *
i,
sizeof(
float));
613 for (
int j = 0; j < block_size; j++) {
614 bufferh[j * pblock_size +
i] = bufferv[
i * pblock_size + j];
618 for (
int i = 0;
i < block_size;
i++) {
619 sc->
itx_fn(sc->
dcti, bufferh + pblock_size *
i, bufferh + pblock_size *
i,
sizeof(
float));
620 for (
int j = 0; j < block_size; j++) {
621 num[j] += bufferh[
i * pblock_size + j] * num_weight;
622 den[j] += den_weight;
631 int plane,
int nb_jobs)
633 const int height =
s->planeheight[plane];
634 const int width =
s->planewidth[plane];
637 for (
int j = 0; j <
width; j++) {
638 uint8_t *dstp =
dst +
i * dst_linesize;
642 for (
int k = 0; k < nb_jobs; k++) {
657 int plane,
int nb_jobs)
659 const int height =
s->planeheight[plane];
660 const int width =
s->planewidth[plane];
661 const int depth =
s->depth;
664 for (
int j = 0; j <
width; j++) {
665 uint16_t *dstp = (uint16_t *)
dst +
i * dst_linesize / 2;
669 for (
int k = 0; k < nb_jobs; k++) {
687 const int block_step =
s->block_step;
689 const uint8_t *
src = td->
src;
690 const uint8_t *
ref = td->
ref;
693 const int plane = td->
plane;
694 const int width =
s->planewidth[plane];
695 const int height =
s->planeheight[plane];
696 const int block_pos_bottom =
FFMAX(0,
height -
s->block_size);
697 const int block_pos_right =
FFMAX(0,
width -
s->block_size);
698 const int slice_start = (((
height + block_step - 1) / block_step) * jobnr / nb_jobs) * block_step;
699 const int slice_end = (jobnr == nb_jobs - 1) ? block_pos_bottom + block_step :
700 (((
height + block_step - 1) / block_step) * (jobnr + 1) / nb_jobs) * block_step;
706 if (j > block_pos_bottom) {
707 j = block_pos_bottom;
710 for (
int i = 0;
i < block_pos_right + block_step;
i += block_step) {
711 if (
i > block_pos_right) {
717 s->block_filtering(
s,
src, src_linesize,
718 ref, ref_linesize, j,
i, plane, jobnr);
736 for (p = 0; p <
s->nb_planes; p++) {
737 const int nb_jobs =
FFMAX(1,
FFMIN(
s->nb_threads,
s->planeheight[p] /
s->block_size));
740 if (!((1 << p) &
s->planes) ||
ctx->is_disabled) {
743 s->planewidth[p] * (1 + (
s->depth > 8)),
s->planeheight[p]);
754 s->do_output(
s, (*out)->data[p], (*out)->linesize[p], p, nb_jobs);
760 #define SQR(x) ((x) * (x))
770 s->depth =
desc->comp[0].depth;
771 s->max = (1 <<
s->depth) - 1;
773 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
775 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
779 for (
int i = 0;
i <
s->nb_threads;
i++) {
781 float iscale = 0.5f /
s->block_size;
798 if (
s->group_size > 1) {
799 float iscale = 0.5f /
s->group_size;
906 if (
s->th_mse == 0.f)
907 s->th_mse = 400.f +
s->sigma * 80.f;
909 }
else if (
s->mode ==
FINAL) {
914 if (
s->th_mse == 0.f)
915 s->th_mse = 200.f +
s->sigma * 10.f;
922 if (
s->block_step >
s->block_size) {
924 s->block_step,
s->block_size);
925 s->block_step =
s->block_size;
928 if (
s->bm_step >
s->bm_range) {
930 s->bm_step,
s->bm_range);
931 s->bm_step =
s->bm_range;
943 pad.
name =
"reference";
970 "(size %dx%d) do not match the corresponding "
971 "second input link %s parameters (%dx%d) ",
973 ctx->input_pads[1].name,
ref->w,
ref->h);
1012 for (
int i = 0;
i <
s->nb_threads;
i++) {
1055 .priv_class = &bm3d_class,
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
#define AV_PIX_FMT_GBRAP16
AVRational time_base
Time base for the incoming frames.
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
#define AV_LOG_WARNING
Something somehow does not look correct.
SliceContext slices[MAX_NB_THREADS]
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
#define FILTER_PIXFMTS_ARRAY(array)
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
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)
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
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
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
double(* do_block_ssd)(struct BM3DContext *s, PosCode *pos, const uint8_t *src, int src_stride, int r_y, int r_x)
#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.
static const AVOption bm3d_options[]
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
const char * name
Filter name.
static void block_matching(BM3DContext *s, const uint8_t *ref, int ref_linesize, int j, int i, int plane, int jobnr)
A link between two filters.
#define AV_PIX_FMT_YUVA422P10
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
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...
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
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.
Link properties exposed to filter code, but not external callers.
static double do_block_ssd(BM3DContext *s, PosCode *pos, const uint8_t *src, int src_stride, int r_y, int r_x)
static const struct @466 planes[]
AVFILTER_DEFINE_CLASS(bm3d)
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
@ EXT_STOP
Completely stop all streams with this one.
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_GBRP14
int ff_append_inpad(AVFilterContext *f, AVFilterPad *p)
Append a new input/output pad to the filter's list of such pads.
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
@ 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
#define AV_PIX_FMT_GRAY16
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
A filter pad used for either input or output.
#define FFDIFFSIGN(x, y)
Comparator.
#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 ...
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define AV_PIX_FMT_YUV422P16
PosPairCode match_blocks[256]
void(* av_tx_fn)(AVTXContext *s, void *out, void *in, ptrdiff_t stride)
Function pointer to a function to perform the transform.
void(* do_output)(struct BM3DContext *s, uint8_t *dst, int dst_linesize, int plane, int nb_jobs)
@ 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
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
#define AV_PIX_FMT_GBRAP12
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
static int search_boundary(int plane_boundary, int search_range, int search_step, int vertical, int y, int x)
#define AV_PIX_FMT_YUV444P16
#define AV_CEIL_RSHIFT(a, b)
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
static void final_block_filtering(BM3DContext *s, const uint8_t *src, int src_linesize, const uint8_t *ref, int ref_linesize, int y, int x, int plane, int jobnr)
#define AV_PIX_FMT_GRAY14
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define FILTER_OUTPUTS(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
#define AV_PIX_FMT_GBRP16
Describe the class of an AVClass context structure.
static int process_frame(FFFrameSync *fs)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define fs(width, name, subs,...)
static void basic_block_filtering(BM3DContext *s, const uint8_t *src, int src_linesize, const uint8_t *ref, int ref_linesize, int y, int x, int plane, int jobnr)
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
static void do_output(BM3DContext *s, uint8_t *dst, int dst_linesize, int plane, int nb_jobs)
#define AV_PIX_FMT_YUV440P10
static __device__ float sqrtf(float a)
size_t av_cpu_max_align(void)
Get the maximum data alignment that may be required by FFmpeg.
#define AV_PIX_FMT_YUV422P10
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
static av_cold void uninit(AVFilterContext *ctx)
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
static FilterLink * ff_filter_link(AVFilterLink *link)
int(* config_props)(AVFilterLink *link)
Link configuration callback.
static int cmp_scores(const void *a, const void *b)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
#define AV_PIX_FMT_YUV422P12
static const AVFilterPad bm3d_outputs[]
#define AV_PIX_FMT_YUV444P12
AVFilterContext * src
source filter
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
#define AV_PIX_FMT_YUVA444P10
PosCode * search_positions
av_cold void av_tx_uninit(AVTXContext **ctx)
Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
#define i(width, name, range_min, range_max)
void(* get_block_row)(const uint8_t *srcp, int src_linesize, int y, int x, int block_size, float *dst)
int w
agreed upon image width
#define AV_PIX_FMT_GBRP12
static void do_output16(BM3DContext *s, uint8_t *dst, int dst_linesize, int plane, int nb_jobs)
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Used for passing data between threads.
static int do_search_boundary(int pos, int plane_boundary, int search_range, int search_step)
static int config_input(AVFilterLink *inlink)
static void block_matching_multi(BM3DContext *s, const uint8_t *ref, int ref_linesize, int y, int x, int exclude_cur_pos, int plane, int jobnr)
@ 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 int filter_frame(AVFilterContext *ctx, AVFrame **out, AVFrame *in, AVFrame *ref)
static void do_block_matching_multi(BM3DContext *s, const uint8_t *src, int src_stride, int src_range, const PosCode *search_pos, int search_size, float th_mse, int r_y, int r_x, int plane, int jobnr)
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
enum AVMediaType type
AVFilterPad type.
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define AV_PIX_FMT_YUVA444P9
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
static av_cold int init(AVFilterContext *ctx)
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
int h
agreed upon image height
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
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
static void get_block_row(const uint8_t *srcp, int src_linesize, int y, int x, int block_size, float *dst)
#define AV_PIX_FMT_YUVA422P12
@ AV_OPT_TYPE_INT
Underlying C type is int.
static int config_output(AVFilterLink *outlink)
static int ref[MAX_W *MAX_W]
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
static double do_block_ssd16(BM3DContext *s, PosCode *pos, const uint8_t *src, int src_stride, int r_y, int r_x)
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ 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)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
static void scale(int *out, const int *in, const int w, const int h, const int shift)
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
@ AV_TX_FLOAT_DCT
Real to real (DCT) transforms.
@ 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...
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
#define AV_PIX_FMT_YUV440P12
the definition of that something depends on the semantic of the filter The callback must examine the status of the filter s links and proceed accordingly The status of output links is stored in the status_in and status_out fields and tested by the ff_outlink_frame_wanted() function. If this function returns true
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable.
#define AV_PIX_FMT_YUV444P14
void(* block_filtering)(struct BM3DContext *s, const uint8_t *src, int src_linesize, const uint8_t *ref, int ref_linesize, int y, int x, int plane, int jobnr)
static void get_block_row16(const uint8_t *srcp, int src_linesize, int y, int x, int block_size, float *dst)
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
#define AV_PIX_FMT_GRAY12
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
const AVFilter ff_vf_bm3d
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14
static int activate(AVFilterContext *ctx)