415 lines
13 KiB
C
415 lines
13 KiB
C
/*
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* Copyright (c) 2015 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Adaptive Temporal Averaging Denoiser,
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* based on paper "Video Denoising Based on Adaptive Temporal Averaging" by
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* David Bartovčak and Miroslav Vrankić
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*/
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#define FF_BUFQUEUE_SIZE 129
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#include "bufferqueue.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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#define SIZE FF_BUFQUEUE_SIZE
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typedef struct ATADenoiseContext {
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const AVClass *class;
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float fthra[4], fthrb[4];
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int thra[4], thrb[4];
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int nb_planes;
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int planewidth[4];
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int planeheight[4];
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struct FFBufQueue q;
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void *data[4][SIZE];
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int linesize[4][SIZE];
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int size, mid;
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int available;
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int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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} ATADenoiseContext;
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#define OFFSET(x) offsetof(ATADenoiseContext, x)
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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static const AVOption atadenoise_options[] = {
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{ "0a", "set threshold A for 1st plane", OFFSET(fthra[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
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{ "0b", "set threshold B for 1st plane", OFFSET(fthrb[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
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{ "1a", "set threshold A for 2nd plane", OFFSET(fthra[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
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{ "1b", "set threshold B for 2nd plane", OFFSET(fthrb[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
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{ "2a", "set threshold A for 3rd plane", OFFSET(fthra[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
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{ "2b", "set threshold B for 3rd plane", OFFSET(fthrb[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
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{ "s", "set how many frames to use", OFFSET(size), AV_OPT_TYPE_INT, {.i64=33}, 5, SIZE, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(atadenoise);
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static int query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pixel_fmts[] = {
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AV_PIX_FMT_GRAY8,
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AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
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AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
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AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
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AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
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AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_YUVJ411P,
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AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
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AV_PIX_FMT_NONE
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};
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AVFilterFormats *formats = ff_make_format_list(pixel_fmts);
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if (!formats)
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return AVERROR(ENOMEM);
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return ff_set_common_formats(ctx, formats);
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}
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static av_cold int init(AVFilterContext *ctx)
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{
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ATADenoiseContext *s = ctx->priv;
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if (!(s->size & 1)) {
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av_log(ctx, AV_LOG_ERROR, "size %d is invalid. Must be an odd value.\n", s->size);
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return AVERROR(EINVAL);
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}
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s->mid = s->size / 2 + 1;
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return 0;
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}
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typedef struct ThreadData {
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AVFrame *in, *out;
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} ThreadData;
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static int filter_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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ATADenoiseContext *s = ctx->priv;
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ThreadData *td = arg;
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AVFrame *in = td->in;
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AVFrame *out = td->out;
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const int size = s->size;
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const int mid = s->mid;
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int p, x, y, i, j;
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for (p = 0; p < s->nb_planes; p++) {
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const int h = s->planeheight[p];
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const int w = s->planewidth[p];
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const int slice_start = (h * jobnr) / nb_jobs;
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const int slice_end = (h * (jobnr+1)) / nb_jobs;
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const uint8_t *src = in->data[p] + slice_start * in->linesize[p];
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uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
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const int thra = s->thra[p];
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const int thrb = s->thrb[p];
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const uint8_t **data = (const uint8_t **)s->data[p];
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const int *linesize = (const int *)s->linesize[p];
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const uint8_t *srcf[SIZE];
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for (i = 0; i < size; i++)
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srcf[i] = data[i] + slice_start * linesize[i];
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for (y = slice_start; y < slice_end; y++) {
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for (x = 0; x < w; x++) {
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const int srcx = src[x];
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unsigned lsumdiff = 0, rsumdiff = 0;
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unsigned ldiff, rdiff;
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unsigned sum = srcx;
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int l = 0, r = 0;
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int srcjx, srcix;
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for (j = mid - 1, i = mid + 1; j >= 0 && i < size; j--, i++) {
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srcjx = srcf[j][x];
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ldiff = FFABS(srcx - srcjx);
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lsumdiff += ldiff;
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if (ldiff > thra ||
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lsumdiff > thrb)
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break;
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l++;
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sum += srcjx;
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srcix = srcf[i][x];
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rdiff = FFABS(srcx - srcix);
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rsumdiff += rdiff;
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if (rdiff > thra ||
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rsumdiff > thrb)
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break;
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r++;
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sum += srcix;
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}
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dst[x] = sum / (r + l + 1);
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}
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dst += out->linesize[p];
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src += in->linesize[p];
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for (i = 0; i < size; i++)
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srcf[i] += linesize[i];
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}
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}
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return 0;
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}
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static int filter_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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ATADenoiseContext *s = ctx->priv;
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ThreadData *td = arg;
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AVFrame *in = td->in;
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AVFrame *out = td->out;
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const int size = s->size;
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const int mid = s->mid;
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int p, x, y, i, j;
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for (p = 0; p < s->nb_planes; p++) {
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const int h = s->planeheight[p];
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const int w = s->planewidth[p];
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const int slice_start = (h * jobnr) / nb_jobs;
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const int slice_end = (h * (jobnr+1)) / nb_jobs;
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const uint16_t *src = (uint16_t *)(in->data[p] + slice_start * in->linesize[p]);
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uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
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const int thra = s->thra[p];
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const int thrb = s->thrb[p];
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const uint8_t **data = (const uint8_t **)s->data[p];
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const int *linesize = (const int *)s->linesize[p];
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const uint16_t *srcf[SIZE];
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for (i = 0; i < s->size; i++)
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srcf[i] = (const uint16_t *)(data[i] + slice_start * linesize[i]);
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for (y = slice_start; y < slice_end; y++) {
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for (x = 0; x < w; x++) {
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const int srcx = src[x];
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unsigned lsumdiff = 0, rsumdiff = 0;
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unsigned ldiff, rdiff;
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unsigned sum = srcx;
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int l = 0, r = 0;
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int srcjx, srcix;
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for (j = mid - 1, i = mid + 1; j >= 0 && i < size; j--, i++) {
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srcjx = srcf[j][x];
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ldiff = FFABS(srcx - srcjx);
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lsumdiff += ldiff;
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if (ldiff > thra ||
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lsumdiff > thrb)
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break;
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l++;
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sum += srcjx;
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srcix = srcf[i][x];
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rdiff = FFABS(srcx - srcix);
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rsumdiff += rdiff;
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if (rdiff > thra ||
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rsumdiff > thrb)
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break;
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r++;
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sum += srcix;
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}
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dst[x] = sum / (r + l + 1);
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}
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dst += out->linesize[p] / 2;
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src += in->linesize[p] / 2;
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for (i = 0; i < size; i++)
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srcf[i] += linesize[i] / 2;
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}
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}
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return 0;
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}
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static int config_input(AVFilterLink *inlink)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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AVFilterContext *ctx = inlink->dst;
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ATADenoiseContext *s = ctx->priv;
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int depth;
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s->nb_planes = desc->nb_components;
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s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
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s->planeheight[0] = s->planeheight[3] = inlink->h;
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s->planewidth[1] = s->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
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s->planewidth[0] = s->planewidth[3] = inlink->w;
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depth = desc->comp[0].depth;
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if (depth == 8)
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s->filter_slice = filter_slice8;
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else
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s->filter_slice = filter_slice16;
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s->thra[0] = s->fthra[0] * (1 << depth) - 1;
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s->thra[1] = s->fthra[1] * (1 << depth) - 1;
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s->thra[2] = s->fthra[2] * (1 << depth) - 1;
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s->thrb[0] = s->fthrb[0] * (1 << depth) - 1;
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s->thrb[1] = s->fthrb[1] * (1 << depth) - 1;
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s->thrb[2] = s->fthrb[2] * (1 << depth) - 1;
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
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{
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AVFilterContext *ctx = inlink->dst;
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AVFilterLink *outlink = ctx->outputs[0];
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ATADenoiseContext *s = ctx->priv;
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AVFrame *out, *in;
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int i;
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if (s->q.available != s->size) {
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if (s->q.available < s->mid) {
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for (i = 0; i < s->mid; i++) {
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out = av_frame_clone(buf);
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if (!out) {
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av_frame_free(&buf);
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return AVERROR(ENOMEM);
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}
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ff_bufqueue_add(ctx, &s->q, out);
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}
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}
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if (s->q.available < s->size) {
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ff_bufqueue_add(ctx, &s->q, buf);
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s->available++;
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}
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return 0;
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}
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in = ff_bufqueue_peek(&s->q, s->mid);
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if (!ctx->is_disabled) {
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ThreadData td;
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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av_frame_free(&buf);
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return AVERROR(ENOMEM);
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}
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for (i = 0; i < s->size; i++) {
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AVFrame *frame = ff_bufqueue_peek(&s->q, i);
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s->data[0][i] = frame->data[0];
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s->data[1][i] = frame->data[1];
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s->data[2][i] = frame->data[2];
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s->linesize[0][i] = frame->linesize[0];
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s->linesize[1][i] = frame->linesize[1];
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s->linesize[2][i] = frame->linesize[2];
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}
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td.in = in; td.out = out;
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ctx->internal->execute(ctx, s->filter_slice, &td, NULL,
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FFMIN3(s->planeheight[1],
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s->planeheight[2],
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ctx->graph->nb_threads));
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av_frame_copy_props(out, in);
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} else {
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out = av_frame_clone(in);
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if (!out) {
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av_frame_free(&buf);
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return AVERROR(ENOMEM);
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}
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}
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in = ff_bufqueue_get(&s->q);
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av_frame_free(&in);
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ff_bufqueue_add(ctx, &s->q, buf);
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return ff_filter_frame(outlink, out);
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}
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static int request_frame(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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ATADenoiseContext *s = ctx->priv;
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int ret = 0;
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ret = ff_request_frame(ctx->inputs[0]);
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if (ret == AVERROR_EOF && !ctx->is_disabled && s->available) {
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AVFrame *buf = av_frame_clone(ff_bufqueue_peek(&s->q, s->available));
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if (!buf)
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return AVERROR(ENOMEM);
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ret = filter_frame(ctx->inputs[0], buf);
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s->available--;
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}
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return ret;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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ATADenoiseContext *s = ctx->priv;
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ff_bufqueue_discard_all(&s->q);
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}
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static const AVFilterPad inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_input,
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},
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{ NULL }
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};
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static const AVFilterPad outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.request_frame = request_frame,
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},
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{ NULL }
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};
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AVFilter ff_vf_atadenoise = {
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.name = "atadenoise",
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.description = NULL_IF_CONFIG_SMALL("Apply an Adaptive Temporal Averaging Denoiser."),
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.priv_size = sizeof(ATADenoiseContext),
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.priv_class = &atadenoise_class,
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.init = init,
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.uninit = uninit,
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.query_formats = query_formats,
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.inputs = inputs,
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.outputs = outputs,
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
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};
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