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avfilter/vf_fftfilt: add slice threading support

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This commit is contained in:
Paul B Mahol 2021-10-14 00:57:03 +02:00
parent 8add1b39e2
commit 844890b1bc
1 changed files with 230 additions and 103 deletions
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333
libavfilter/vf_fftfilt.c
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@ -32,6 +32,7 @@
#include "libavcodec/avfft.h"
#include "libavutil/eval.h"
#define MAX_THREADS 32
#define MAX_PLANES 4
enum EvalMode {
@ -46,13 +47,14 @@ typedef struct FFTFILTContext {
int eval_mode;
int depth;
int nb_planes;
int nb_threads;
int planewidth[MAX_PLANES];
int planeheight[MAX_PLANES];
RDFTContext *hrdft[MAX_PLANES];
RDFTContext *vrdft[MAX_PLANES];
RDFTContext *ihrdft[MAX_PLANES];
RDFTContext *ivrdft[MAX_PLANES];
RDFTContext *hrdft[MAX_THREADS][MAX_PLANES];
RDFTContext *vrdft[MAX_THREADS][MAX_PLANES];
RDFTContext *ihrdft[MAX_THREADS][MAX_PLANES];
RDFTContext *ivrdft[MAX_THREADS][MAX_PLANES];
int rdft_hbits[MAX_PLANES];
int rdft_vbits[MAX_PLANES];
size_t rdft_hlen[MAX_PLANES];
@ -65,8 +67,8 @@ typedef struct FFTFILTContext {
AVExpr *weight_expr[MAX_PLANES];
double *weight[MAX_PLANES];
void (*rdft_horizontal)(struct FFTFILTContext *s, AVFrame *in, int w, int h, int plane);
void (*irdft_horizontal)(struct FFTFILTContext *s, AVFrame *out, int w, int h, int plane);
int (*rdft_horizontal)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
int (*irdft_horizontal)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
} FFTFILTContext;
static const char *const var_names[] = { "X", "Y", "W", "H", "N", NULL };
@ -102,7 +104,7 @@ static double weight_Y(void *priv, double x, double y) { return lum(priv, x, y,
static double weight_U(void *priv, double x, double y) { return lum(priv, x, y, U); }
static double weight_V(void *priv, double x, double y) { return lum(priv, x, y, V); }
static void copy_rev (FFTSample *dest, int w, int w2)
static void copy_rev(FFTSample *dest, int w, int w2)
{
int i;
@ -113,100 +115,115 @@ static void copy_rev (FFTSample *dest, int w, int w2)
dest[i] = dest[w2 - i];
}
/*Horizontal pass - RDFT*/
static void rdft_horizontal8(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
static int rdft_horizontal8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
int i, j;
FFTFILTContext *s = ctx->priv;
AVFrame *in = arg;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++)
s->rdft_hdata[plane][i * s->rdft_hlen[plane] + j] = *(in->data[plane] + in->linesize[plane] * i + j);
for (int plane = 0; plane < s->nb_planes; plane++) {
const int w = s->planewidth[plane];
const int h = s->planeheight[plane];
const int slice_start = (h * jobnr) / nb_jobs;
const int slice_end = (h * (jobnr+1)) / nb_jobs;
copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
for (int i = slice_start; i < slice_end; i++) {
const uint8_t *src = in->data[plane] + i * in->linesize[plane];
float *hdata = s->rdft_hdata[plane] + i * s->rdft_hlen[plane];
for (int j = 0; j < w; j++)
hdata[j] = src[j];
copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
}
for (int i = slice_start; i < slice_end; i++)
av_rdft_calc(s->hrdft[jobnr][plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
}
for (i = 0; i < h; i++)
av_rdft_calc(s->hrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
return 0;
}
static void rdft_horizontal16(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
static int rdft_horizontal16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
const uint16_t *src = (const uint16_t *)in->data[plane];
int linesize = in->linesize[plane] / 2;
int i, j;
FFTFILTContext *s = ctx->priv;
AVFrame *in = arg;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++)
s->rdft_hdata[plane][i * s->rdft_hlen[plane] + j] = *(src + linesize * i + j);
for (int plane = 0; plane < s->nb_planes; plane++) {
const int w = s->planewidth[plane];
const int h = s->planeheight[plane];
const int slice_start = (h * jobnr) / nb_jobs;
const int slice_end = (h * (jobnr+1)) / nb_jobs;
copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
for (int i = slice_start; i < slice_end; i++) {
const uint16_t *src = (const uint16_t *)(in->data[plane] + i * in->linesize[plane]);
float *hdata = s->rdft_hdata[plane] + i * s->rdft_hlen[plane];
for (int j = 0; j < w; j++)
hdata[j] = src[j];
copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
}
for (int i = slice_start; i < slice_end; i++)
av_rdft_calc(s->hrdft[jobnr][plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
}
for (i = 0; i < h; i++)
av_rdft_calc(s->hrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
return 0;
}
/*Vertical pass - RDFT*/
static void rdft_vertical(FFTFILTContext *s, int h, int plane)
static int irdft_horizontal8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
int i, j;
FFTFILTContext *s = ctx->priv;
AVFrame *out = arg;
for (i = 0; i < s->rdft_hlen[plane]; i++) {
for (j = 0; j < h; j++)
s->rdft_vdata[plane][i * s->rdft_vlen[plane] + j] =
s->rdft_hdata[plane][j * s->rdft_hlen[plane] + i];
copy_rev(s->rdft_vdata[plane] + i * s->rdft_vlen[plane], h, s->rdft_vlen[plane]);
for (int plane = 0; plane < s->nb_planes; plane++) {
const int w = s->planewidth[plane];
const int h = s->planeheight[plane];
const int slice_start = (h * jobnr) / nb_jobs;
const int slice_end = (h * (jobnr+1)) / nb_jobs;
for (int i = slice_start; i < slice_end; i++)
av_rdft_calc(s->ihrdft[jobnr][plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
for (int i = slice_start; i < slice_end; i++) {
const float scale = 4.f / (s->rdft_hlen[plane] * s->rdft_vlen[plane]);
const float *src = s->rdft_hdata[plane] + i * s->rdft_hlen[plane];
uint8_t *dst = out->data[plane] + i * out->linesize[plane];
for (int j = 0; j < w; j++)
dst[j] = av_clip(lrintf(src[j] * scale), 0, 255);
}
}
for (i = 0; i < s->rdft_hlen[plane]; i++)
av_rdft_calc(s->vrdft[plane], s->rdft_vdata[plane] + i * s->rdft_vlen[plane]);
}
/*Vertical pass - IRDFT*/
static void irdft_vertical(FFTFILTContext *s, int h, int plane)
{
int i, j;
for (i = 0; i < s->rdft_hlen[plane]; i++)
av_rdft_calc(s->ivrdft[plane], s->rdft_vdata[plane] + i * s->rdft_vlen[plane]);
for (i = 0; i < s->rdft_hlen[plane]; i++)
for (j = 0; j < h; j++)
s->rdft_hdata[plane][j * s->rdft_hlen[plane] + i] =
s->rdft_vdata[plane][i * s->rdft_vlen[plane] + j];
return 0;
}
/*Horizontal pass - IRDFT*/
static void irdft_horizontal8(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
static int irdft_horizontal16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
int i, j;
FFTFILTContext *s = ctx->priv;
AVFrame *out = arg;
for (i = 0; i < h; i++)
av_rdft_calc(s->ihrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
for (int plane = 0; plane < s->nb_planes; plane++) {
int max = (1 << s->depth) - 1;
const int w = s->planewidth[plane];
const int h = s->planeheight[plane];
const int slice_start = (h * jobnr) / nb_jobs;
const int slice_end = (h * (jobnr+1)) / nb_jobs;
for (i = 0; i < h; i++)
for (j = 0; j < w; j++)
*(out->data[plane] + out->linesize[plane] * i + j) = av_clip(s->rdft_hdata[plane][i
*s->rdft_hlen[plane] + j] * 4 /
(s->rdft_hlen[plane] *
s->rdft_vlen[plane]), 0, 255);
}
for (int i = slice_start; i < slice_end; i++)
av_rdft_calc(s->ihrdft[jobnr][plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
static void irdft_horizontal16(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
{
uint16_t *dst = (uint16_t *)out->data[plane];
int linesize = out->linesize[plane] / 2;
int max = (1 << s->depth) - 1;
int i, j;
for (int i = slice_start; i < slice_end; i++) {
const float scale = 4.f / (s->rdft_hlen[plane] * s->rdft_vlen[plane]);
const float *src = s->rdft_hdata[plane] + i * s->rdft_hlen[plane];
uint16_t *dst = (uint16_t *)(out->data[plane] + i * out->linesize[plane]);
for (i = 0; i < h; i++)
av_rdft_calc(s->ihrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
for (int j = 0; j < w; j++)
dst[j] = av_clip(lrintf(src[j] * scale), 0, max);
}
}
for (i = 0; i < h; i++)
for (j = 0; j < w; j++)
*(dst + linesize * i + j) = av_clip(s->rdft_hdata[plane][i
*s->rdft_hlen[plane] + j] * 4 /
(s->rdft_hlen[plane] *
s->rdft_vlen[plane]), 0, max);
return 0;
}
static av_cold int initialize(AVFilterContext *ctx)
@ -276,6 +293,7 @@ static int config_props(AVFilterLink *inlink)
s->planeheight[0] = s->planeheight[3] = inlink->h;
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
s->nb_threads = FFMIN(32, ff_filter_get_nb_threads(inlink->dst));
for (i = 0; i < desc->nb_components; i++) {
int w = s->planewidth[i];
@ -287,10 +305,12 @@ static int config_props(AVFilterLink *inlink)
if (!(s->rdft_hdata[i] = av_malloc_array(h, s->rdft_hlen[i] * sizeof(FFTSample))))
return AVERROR(ENOMEM);
if (!(s->hrdft[i] = av_rdft_init(s->rdft_hbits[i], DFT_R2C)))
return AVERROR(ENOMEM);
if (!(s->ihrdft[i] = av_rdft_init(s->rdft_hbits[i], IDFT_C2R)))
return AVERROR(ENOMEM);
for (int j = 0; j < s->nb_threads; j++) {
if (!(s->hrdft[j][i] = av_rdft_init(s->rdft_hbits[i], DFT_R2C)))
return AVERROR(ENOMEM);
if (!(s->ihrdft[j][i] = av_rdft_init(s->rdft_hbits[i], IDFT_C2R)))
return AVERROR(ENOMEM);
}
/* RDFT - Array initialization for Vertical pass*/
s->rdft_vlen[i] = 1 << (32 - ff_clz(h));
@ -298,10 +318,12 @@ static int config_props(AVFilterLink *inlink)
if (!(s->rdft_vdata[i] = av_malloc_array(s->rdft_hlen[i], s->rdft_vlen[i] * sizeof(FFTSample))))
return AVERROR(ENOMEM);
if (!(s->vrdft[i] = av_rdft_init(s->rdft_vbits[i], DFT_R2C)))
return AVERROR(ENOMEM);
if (!(s->ivrdft[i] = av_rdft_init(s->rdft_vbits[i], IDFT_C2R)))
return AVERROR(ENOMEM);
for (int j = 0; j < s->nb_threads; j++) {
if (!(s->vrdft[j][i] = av_rdft_init(s->rdft_vbits[i], DFT_R2C)))
return AVERROR(ENOMEM);
if (!(s->ivrdft[j][i] = av_rdft_init(s->rdft_vbits[i], IDFT_C2R)))
return AVERROR(ENOMEM);
}
}
/*Luminance value - Array initialization*/
@ -325,13 +347,109 @@ static int config_props(AVFilterLink *inlink)
return 0;
}
static int multiply_data(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
FFTFILTContext *s = ctx->priv;
for (int plane = 0; plane < s->nb_planes; plane++) {
const int height = s->rdft_hlen[plane];
const int slice_start = (height * jobnr) / nb_jobs;
const int slice_end = (height * (jobnr+1)) / nb_jobs;
/*Change user defined parameters*/
for (int i = slice_start; i < slice_end; i++) {
const double *weight = s->weight[plane] + i * s->rdft_vlen[plane];
float *vdata = s->rdft_vdata[plane] + i * s->rdft_vlen[plane];
for (int j = 0; j < s->rdft_vlen[plane]; j++)
vdata[j] *= weight[j];
}
}
return 0;
}
static int copy_vertical(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
FFTFILTContext *s = ctx->priv;
for (int plane = 0; plane < s->nb_planes; plane++) {
const int hlen = s->rdft_hlen[plane];
const int vlen = s->rdft_vlen[plane];
const int slice_start = (hlen * jobnr) / nb_jobs;
const int slice_end = (hlen * (jobnr+1)) / nb_jobs;
const int h = s->planeheight[plane];
FFTSample *hdata = s->rdft_hdata[plane];
FFTSample *vdata = s->rdft_vdata[plane];
for (int i = slice_start; i < slice_end; i++) {
for (int j = 0; j < h; j++)
vdata[i * vlen + j] = hdata[j * hlen + i];
copy_rev(vdata + i * vlen, h, vlen);
}
}
return 0;
}
static int rdft_vertical(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
FFTFILTContext *s = ctx->priv;
for (int plane = 0; plane < s->nb_planes; plane++) {
const int height = s->rdft_hlen[plane];
const int slice_start = (height * jobnr) / nb_jobs;
const int slice_end = (height * (jobnr+1)) / nb_jobs;
for (int i = slice_start; i < slice_end; i++)
av_rdft_calc(s->vrdft[jobnr][plane], s->rdft_vdata[plane] + i * s->rdft_vlen[plane]);
}
return 0;
}
static int irdft_vertical(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
FFTFILTContext *s = ctx->priv;
for (int plane = 0; plane < s->nb_planes; plane++) {
const int height = s->rdft_hlen[plane];
const int slice_start = (height * jobnr) / nb_jobs;
const int slice_end = (height * (jobnr+1)) / nb_jobs;
for (int i = slice_start; i < slice_end; i++)
av_rdft_calc(s->ivrdft[jobnr][plane], s->rdft_vdata[plane] + i * s->rdft_vlen[plane]);
}
return 0;
}
static int copy_horizontal(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
FFTFILTContext *s = ctx->priv;
for (int plane = 0; plane < s->nb_planes; plane++) {
const int hlen = s->rdft_hlen[plane];
const int vlen = s->rdft_vlen[plane];
const int slice_start = (hlen * jobnr) / nb_jobs;
const int slice_end = (hlen * (jobnr+1)) / nb_jobs;
const int h = s->planeheight[plane];
FFTSample *hdata = s->rdft_hdata[plane];
FFTSample *vdata = s->rdft_vdata[plane];
for (int i = slice_start; i < slice_end; i++)
for (int j = 0; j < h; j++)
hdata[j * hlen + i] = vdata[i * vlen + j];
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = inlink->dst->outputs[0];
FFTFILTContext *s = ctx->priv;
AVFrame *out;
int i, j, plane;
out = ff_get_video_buffer(outlink, inlink->w, inlink->h);
if (!out) {
@ -341,27 +459,34 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
av_frame_copy_props(out, in);
for (plane = 0; plane < s->nb_planes; plane++) {
int w = s->planewidth[plane];
int h = s->planeheight[plane];
for (int plane = 0; plane < s->nb_planes; plane++) {
if (s->eval_mode == EVAL_MODE_FRAME)
do_eval(s, inlink, plane);
}
s->rdft_horizontal(s, in, w, h, plane);
rdft_vertical(s, h, plane);
ff_filter_execute(ctx, s->rdft_horizontal, in, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
/*Change user defined parameters*/
for (i = 0; i < s->rdft_hlen[plane]; i++)
for (j = 0; j < s->rdft_vlen[plane]; j++)
s->rdft_vdata[plane][i * s->rdft_vlen[plane] + j] *=
s->weight[plane][i * s->rdft_vlen[plane] + j];
ff_filter_execute(ctx, copy_vertical, NULL, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
ff_filter_execute(ctx, rdft_vertical, NULL, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
ff_filter_execute(ctx, multiply_data, NULL, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
for (int plane = 0; plane < s->nb_planes; plane++)
s->rdft_vdata[plane][0] += s->rdft_hlen[plane] * s->rdft_vlen[plane] * s->dc[plane];
irdft_vertical(s, h, plane);
s->irdft_horizontal(s, out, w, h, plane);
}
ff_filter_execute(ctx, irdft_vertical, NULL, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
ff_filter_execute(ctx, copy_horizontal, NULL, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
ff_filter_execute(ctx, s->irdft_horizontal, out, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
av_frame_free(&in);
return ff_filter_frame(outlink, out);
@ -376,10 +501,12 @@ static av_cold void uninit(AVFilterContext *ctx)
av_free(s->rdft_vdata[i]);
av_expr_free(s->weight_expr[i]);
av_free(s->weight[i]);
av_rdft_end(s->hrdft[i]);
av_rdft_end(s->ihrdft[i]);
av_rdft_end(s->vrdft[i]);
av_rdft_end(s->ivrdft[i]);
for (int j = 0; j < s->nb_threads; j++) {
av_rdft_end(s->hrdft[j][i]);
av_rdft_end(s->ihrdft[j][i]);
av_rdft_end(s->vrdft[j][i]);
av_rdft_end(s->ivrdft[j][i]);
}
}
}
@ -426,5 +553,5 @@ const AVFilter ff_vf_fftfilt = {
FILTER_PIXFMTS_ARRAY(pixel_fmts_fftfilt),
.init = initialize,
.uninit = uninit,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
};