| /* |
| * Copyright (c) 2017 Paul B Mahol |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <float.h> |
| |
| #include "libavutil/imgutils.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavcodec/avfft.h" |
| |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "framesync.h" |
| #include "internal.h" |
| #include "video.h" |
| |
| #define MAX_THREADS 16 |
| |
| typedef struct ConvolveContext { |
| const AVClass *class; |
| FFFrameSync fs; |
| |
| FFTContext *fft[4][MAX_THREADS]; |
| FFTContext *ifft[4][MAX_THREADS]; |
| |
| int fft_bits[4]; |
| int fft_len[4]; |
| int planewidth[4]; |
| int planeheight[4]; |
| |
| FFTComplex *fft_hdata[4]; |
| FFTComplex *fft_vdata[4]; |
| FFTComplex *fft_hdata_impulse[4]; |
| FFTComplex *fft_vdata_impulse[4]; |
| |
| int depth; |
| int planes; |
| int impulse; |
| float noise; |
| int nb_planes; |
| int got_impulse[4]; |
| |
| int (*filter)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
| } ConvolveContext; |
| |
| #define OFFSET(x) offsetof(ConvolveContext, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| |
| static const AVOption convolve_options[] = { |
| { "planes", "set planes to convolve", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, FLAGS }, |
| { "impulse", "when to process impulses", OFFSET(impulse), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "impulse" }, |
| { "first", "process only first impulse, ignore rest", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "impulse" }, |
| { "all", "process all impulses", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "impulse" }, |
| { "noise", "set noise", OFFSET(noise), AV_OPT_TYPE_FLOAT, {.dbl=0.0000001}, 0, 1, FLAGS }, |
| { NULL }, |
| }; |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pixel_fmts_fftfilt[] = { |
| AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, |
| AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, |
| AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, |
| AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
| AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, |
| AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, |
| AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, |
| AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, |
| AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, |
| AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
| AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
| AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
| AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
| AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, |
| AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, |
| AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, |
| AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16, |
| AV_PIX_FMT_NONE |
| }; |
| |
| AVFilterFormats *fmts_list = ff_make_format_list(pixel_fmts_fftfilt); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| static int config_input_main(AVFilterLink *inlink) |
| { |
| ConvolveContext *s = inlink->dst->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| int fft_bits, i; |
| |
| s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
| s->planewidth[0] = s->planewidth[3] = inlink->w; |
| s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); |
| s->planeheight[0] = s->planeheight[3] = inlink->h; |
| |
| s->nb_planes = desc->nb_components; |
| s->depth = desc->comp[0].depth; |
| |
| for (i = 0; i < s->nb_planes; i++) { |
| int w = s->planewidth[i]; |
| int h = s->planeheight[i]; |
| int n = FFMAX(w, h); |
| |
| for (fft_bits = 1; 1 << fft_bits < n; fft_bits++); |
| |
| s->fft_bits[i] = fft_bits; |
| s->fft_len[i] = 1 << s->fft_bits[i]; |
| |
| if (!(s->fft_hdata[i] = av_calloc(s->fft_len[i], s->fft_len[i] * sizeof(FFTComplex)))) |
| return AVERROR(ENOMEM); |
| |
| if (!(s->fft_vdata[i] = av_calloc(s->fft_len[i], s->fft_len[i] * sizeof(FFTComplex)))) |
| return AVERROR(ENOMEM); |
| |
| if (!(s->fft_hdata_impulse[i] = av_calloc(s->fft_len[i], s->fft_len[i] * sizeof(FFTComplex)))) |
| return AVERROR(ENOMEM); |
| |
| if (!(s->fft_vdata_impulse[i] = av_calloc(s->fft_len[i], s->fft_len[i] * sizeof(FFTComplex)))) |
| return AVERROR(ENOMEM); |
| } |
| |
| return 0; |
| } |
| |
| static int config_input_impulse(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| |
| if (ctx->inputs[0]->w != ctx->inputs[1]->w || |
| ctx->inputs[0]->h != ctx->inputs[1]->h) { |
| av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n"); |
| return AVERROR(EINVAL); |
| } |
| if (ctx->inputs[0]->format != ctx->inputs[1]->format) { |
| av_log(ctx, AV_LOG_ERROR, "Inputs must be of same pixel format.\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| return 0; |
| } |
| |
| typedef struct ThreadData { |
| FFTComplex *hdata, *vdata; |
| int plane, n; |
| } ThreadData; |
| |
| static int fft_horizontal(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| ConvolveContext *s = ctx->priv; |
| ThreadData *td = arg; |
| FFTComplex *hdata = td->hdata; |
| const int plane = td->plane; |
| const int n = td->n; |
| int start = (n * jobnr) / nb_jobs; |
| int end = (n * (jobnr+1)) / nb_jobs; |
| int y; |
| |
| for (y = start; y < end; y++) { |
| av_fft_permute(s->fft[plane][jobnr], hdata + y * n); |
| av_fft_calc(s->fft[plane][jobnr], hdata + y * n); |
| } |
| |
| return 0; |
| } |
| |
| static void get_input(ConvolveContext *s, FFTComplex *fft_hdata, |
| AVFrame *in, int w, int h, int n, int plane, float scale) |
| { |
| const int iw = (n - w) / 2, ih = (n - h) / 2; |
| int y, x; |
| |
| if (s->depth == 8) { |
| for (y = 0; y < h; y++) { |
| const uint8_t *src = in->data[plane] + in->linesize[plane] * y; |
| |
| for (x = 0; x < w; x++) { |
| fft_hdata[(y + ih) * n + iw + x].re = src[x] * scale; |
| fft_hdata[(y + ih) * n + iw + x].im = 0; |
| } |
| |
| for (x = 0; x < iw; x++) { |
| fft_hdata[(y + ih) * n + x].re = fft_hdata[(y + ih) * n + iw].re; |
| fft_hdata[(y + ih) * n + x].im = 0; |
| } |
| |
| for (x = n - iw; x < n; x++) { |
| fft_hdata[(y + ih) * n + x].re = fft_hdata[(y + ih) * n + n - iw - 1].re; |
| fft_hdata[(y + ih) * n + x].im = 0; |
| } |
| } |
| |
| for (y = 0; y < ih; y++) { |
| for (x = 0; x < n; x++) { |
| fft_hdata[y * n + x].re = fft_hdata[ih * n + x].re; |
| fft_hdata[y * n + x].im = 0; |
| } |
| } |
| |
| for (y = n - ih; y < n; y++) { |
| for (x = 0; x < n; x++) { |
| fft_hdata[y * n + x].re = fft_hdata[(n - ih - 1) * n + x].re; |
| fft_hdata[y * n + x].im = 0; |
| } |
| } |
| } else { |
| for (y = 0; y < h; y++) { |
| const uint16_t *src = (const uint16_t *)(in->data[plane] + in->linesize[plane] * y); |
| |
| for (x = 0; x < w; x++) { |
| fft_hdata[(y + ih) * n + iw + x].re = src[x] * scale; |
| fft_hdata[(y + ih) * n + iw + x].im = 0; |
| } |
| |
| for (x = 0; x < iw; x++) { |
| fft_hdata[(y + ih) * n + x].re = fft_hdata[(y + ih) * n + iw].re; |
| fft_hdata[(y + ih) * n + x].im = 0; |
| } |
| |
| for (x = n - iw; x < n; x++) { |
| fft_hdata[(y + ih) * n + x].re = fft_hdata[(y + ih) * n + n - iw - 1].re; |
| fft_hdata[(y + ih) * n + x].im = 0; |
| } |
| } |
| |
| for (y = 0; y < ih; y++) { |
| for (x = 0; x < n; x++) { |
| fft_hdata[y * n + x].re = fft_hdata[ih * n + x].re; |
| fft_hdata[y * n + x].im = 0; |
| } |
| } |
| |
| for (y = n - ih; y < n; y++) { |
| for (x = 0; x < n; x++) { |
| fft_hdata[y * n + x].re = fft_hdata[(n - ih - 1) * n + x].re; |
| fft_hdata[y * n + x].im = 0; |
| } |
| } |
| } |
| } |
| |
| static int fft_vertical(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| ConvolveContext *s = ctx->priv; |
| ThreadData *td = arg; |
| FFTComplex *hdata = td->hdata; |
| FFTComplex *vdata = td->vdata; |
| const int plane = td->plane; |
| const int n = td->n; |
| int start = (n * jobnr) / nb_jobs; |
| int end = (n * (jobnr+1)) / nb_jobs; |
| int y, x; |
| |
| for (y = start; y < end; y++) { |
| for (x = 0; x < n; x++) { |
| vdata[y * n + x].re = hdata[x * n + y].re; |
| vdata[y * n + x].im = hdata[x * n + y].im; |
| } |
| |
| av_fft_permute(s->fft[plane][jobnr], vdata + y * n); |
| av_fft_calc(s->fft[plane][jobnr], vdata + y * n); |
| } |
| |
| return 0; |
| } |
| |
| static int ifft_vertical(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| ConvolveContext *s = ctx->priv; |
| ThreadData *td = arg; |
| FFTComplex *hdata = td->hdata; |
| FFTComplex *vdata = td->vdata; |
| const int plane = td->plane; |
| const int n = td->n; |
| int start = (n * jobnr) / nb_jobs; |
| int end = (n * (jobnr+1)) / nb_jobs; |
| int y, x; |
| |
| for (y = start; y < end; y++) { |
| av_fft_permute(s->ifft[plane][jobnr], vdata + y * n); |
| av_fft_calc(s->ifft[plane][jobnr], vdata + y * n); |
| |
| for (x = 0; x < n; x++) { |
| hdata[x * n + y].re = vdata[y * n + x].re; |
| hdata[x * n + y].im = vdata[y * n + x].im; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ifft_horizontal(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| ConvolveContext *s = ctx->priv; |
| ThreadData *td = arg; |
| FFTComplex *hdata = td->hdata; |
| const int plane = td->plane; |
| const int n = td->n; |
| int start = (n * jobnr) / nb_jobs; |
| int end = (n * (jobnr+1)) / nb_jobs; |
| int y; |
| |
| for (y = start; y < end; y++) { |
| av_fft_permute(s->ifft[plane][jobnr], hdata + y * n); |
| av_fft_calc(s->ifft[plane][jobnr], hdata + y * n); |
| } |
| |
| return 0; |
| } |
| |
| static void get_output(ConvolveContext *s, FFTComplex *input, AVFrame *out, |
| int w, int h, int n, int plane, float scale) |
| { |
| const int max = (1 << s->depth) - 1; |
| const int hh = h / 2; |
| const int hw = w / 2; |
| int y, x; |
| |
| if (s->depth == 8) { |
| for (y = 0; y < hh; y++) { |
| uint8_t *dst = out->data[plane] + (y + hh) * out->linesize[plane] + hw; |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip_uint8(input[y * n + x].re * scale); |
| } |
| for (y = 0; y < hh; y++) { |
| uint8_t *dst = out->data[plane] + (y + hh) * out->linesize[plane]; |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip_uint8(input[y * n + n - hw + x].re * scale); |
| } |
| for (y = 0; y < hh; y++) { |
| uint8_t *dst = out->data[plane] + y * out->linesize[plane] + hw; |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip_uint8(input[(n - hh + y) * n + x].re * scale); |
| } |
| for (y = 0; y < hh; y++) { |
| uint8_t *dst = out->data[plane] + y * out->linesize[plane]; |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip_uint8(input[(n - hh + y) * n + n - hw + x].re * scale); |
| } |
| } else { |
| for (y = 0; y < hh; y++) { |
| uint16_t *dst = (uint16_t *)(out->data[plane] + (y + hh) * out->linesize[plane] + hw * 2); |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip(input[y * n + x].re * scale, 0, max); |
| } |
| for (y = 0; y < hh; y++) { |
| uint16_t *dst = (uint16_t *)(out->data[plane] + (y + hh) * out->linesize[plane]); |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip(input[y * n + n - hw + x].re * scale, 0, max); |
| } |
| for (y = 0; y < hh; y++) { |
| uint16_t *dst = (uint16_t *)(out->data[plane] + y * out->linesize[plane] + hw * 2); |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip(input[(n - hh + y) * n + x].re * scale, 0, max); |
| } |
| for (y = 0; y < hh; y++) { |
| uint16_t *dst = (uint16_t *)(out->data[plane] + y * out->linesize[plane]); |
| for (x = 0; x < hw; x++) |
| dst[x] = av_clip(input[(n - hh + y) * n + n - hw + x].re * scale, 0, max); |
| } |
| } |
| } |
| |
| static int complex_multiply(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| ConvolveContext *s = ctx->priv; |
| ThreadData *td = arg; |
| FFTComplex *input = td->hdata; |
| FFTComplex *filter = td->vdata; |
| const float noise = s->noise; |
| const int n = td->n; |
| int start = (n * jobnr) / nb_jobs; |
| int end = (n * (jobnr+1)) / nb_jobs; |
| int y, x; |
| |
| for (y = start; y < end; y++) { |
| int yn = y * n; |
| |
| for (x = 0; x < n; x++) { |
| FFTSample re, im, ire, iim; |
| |
| re = input[yn + x].re; |
| im = input[yn + x].im; |
| ire = filter[yn + x].re + noise; |
| iim = filter[yn + x].im; |
| |
| input[yn + x].re = ire * re - iim * im; |
| input[yn + x].im = iim * re + ire * im; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int complex_divide(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| ConvolveContext *s = ctx->priv; |
| ThreadData *td = arg; |
| FFTComplex *input = td->hdata; |
| FFTComplex *filter = td->vdata; |
| const float noise = s->noise; |
| const int n = td->n; |
| int start = (n * jobnr) / nb_jobs; |
| int end = (n * (jobnr+1)) / nb_jobs; |
| int y, x; |
| |
| for (y = start; y < end; y++) { |
| int yn = y * n; |
| |
| for (x = 0; x < n; x++) { |
| FFTSample re, im, ire, iim, div; |
| |
| re = input[yn + x].re; |
| im = input[yn + x].im; |
| ire = filter[yn + x].re; |
| iim = filter[yn + x].im; |
| div = ire * ire + iim * iim + noise; |
| |
| input[yn + x].re = (ire * re + iim * im) / div; |
| input[yn + x].im = (ire * im - iim * re) / div; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int do_convolve(FFFrameSync *fs) |
| { |
| AVFilterContext *ctx = fs->parent; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| ConvolveContext *s = ctx->priv; |
| AVFrame *mainpic = NULL, *impulsepic = NULL; |
| int ret, y, x, plane; |
| |
| ret = ff_framesync_dualinput_get(fs, &mainpic, &impulsepic); |
| if (ret < 0) |
| return ret; |
| if (!impulsepic) |
| return ff_filter_frame(outlink, mainpic); |
| |
| for (plane = 0; plane < s->nb_planes; plane++) { |
| FFTComplex *filter = s->fft_vdata_impulse[plane]; |
| FFTComplex *input = s->fft_vdata[plane]; |
| const int n = s->fft_len[plane]; |
| const int w = s->planewidth[plane]; |
| const int h = s->planeheight[plane]; |
| float total = 0; |
| ThreadData td; |
| |
| if (!(s->planes & (1 << plane))) { |
| continue; |
| } |
| |
| td.plane = plane, td.n = n; |
| get_input(s, s->fft_hdata[plane], mainpic, w, h, n, plane, 1.f); |
| |
| td.hdata = s->fft_hdata[plane]; |
| td.vdata = s->fft_vdata[plane]; |
| |
| ctx->internal->execute(ctx, fft_horizontal, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| ctx->internal->execute(ctx, fft_vertical, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| |
| if ((!s->impulse && !s->got_impulse[plane]) || s->impulse) { |
| if (s->depth == 8) { |
| for (y = 0; y < h; y++) { |
| const uint8_t *src = (const uint8_t *)(impulsepic->data[plane] + y * impulsepic->linesize[plane]) ; |
| for (x = 0; x < w; x++) { |
| total += src[x]; |
| } |
| } |
| } else { |
| for (y = 0; y < h; y++) { |
| const uint16_t *src = (const uint16_t *)(impulsepic->data[plane] + y * impulsepic->linesize[plane]) ; |
| for (x = 0; x < w; x++) { |
| total += src[x]; |
| } |
| } |
| } |
| total = FFMAX(1, total); |
| |
| get_input(s, s->fft_hdata_impulse[plane], impulsepic, w, h, n, plane, 1.f / total); |
| |
| td.hdata = s->fft_hdata_impulse[plane]; |
| td.vdata = s->fft_vdata_impulse[plane]; |
| |
| ctx->internal->execute(ctx, fft_horizontal, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| ctx->internal->execute(ctx, fft_vertical, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| |
| s->got_impulse[plane] = 1; |
| } |
| |
| td.hdata = input; |
| td.vdata = filter; |
| |
| ctx->internal->execute(ctx, s->filter, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| |
| td.hdata = s->fft_hdata[plane]; |
| td.vdata = s->fft_vdata[plane]; |
| |
| ctx->internal->execute(ctx, ifft_vertical, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| ctx->internal->execute(ctx, ifft_horizontal, &td, NULL, FFMIN3(MAX_THREADS, n, ff_filter_get_nb_threads(ctx))); |
| |
| get_output(s, s->fft_hdata[plane], mainpic, w, h, n, plane, 1.f / (n * n)); |
| } |
| |
| return ff_filter_frame(outlink, mainpic); |
| } |
| |
| static int config_output(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| ConvolveContext *s = ctx->priv; |
| AVFilterLink *mainlink = ctx->inputs[0]; |
| int ret, i, j; |
| |
| s->fs.on_event = do_convolve; |
| ret = ff_framesync_init_dualinput(&s->fs, ctx); |
| if (ret < 0) |
| return ret; |
| outlink->w = mainlink->w; |
| outlink->h = mainlink->h; |
| outlink->time_base = mainlink->time_base; |
| outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio; |
| outlink->frame_rate = mainlink->frame_rate; |
| |
| if ((ret = ff_framesync_configure(&s->fs)) < 0) |
| return ret; |
| |
| for (i = 0; i < s->nb_planes; i++) { |
| for (j = 0; j < MAX_THREADS; j++) { |
| s->fft[i][j] = av_fft_init(s->fft_bits[i], 0); |
| s->ifft[i][j] = av_fft_init(s->fft_bits[i], 1); |
| if (!s->fft[i][j] || !s->ifft[i][j]) |
| return AVERROR(ENOMEM); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int activate(AVFilterContext *ctx) |
| { |
| ConvolveContext *s = ctx->priv; |
| return ff_framesync_activate(&s->fs); |
| } |
| |
| static av_cold int init(AVFilterContext *ctx) |
| { |
| ConvolveContext *s = ctx->priv; |
| |
| if (!strcmp(ctx->filter->name, "convolve")) { |
| s->filter = complex_multiply; |
| } else if (!strcmp(ctx->filter->name, "deconvolve")) { |
| s->filter = complex_divide; |
| } else { |
| return AVERROR_BUG; |
| } |
| |
| return 0; |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| ConvolveContext *s = ctx->priv; |
| int i, j; |
| |
| for (i = 0; i < 4; i++) { |
| av_freep(&s->fft_hdata[i]); |
| av_freep(&s->fft_vdata[i]); |
| av_freep(&s->fft_hdata_impulse[i]); |
| av_freep(&s->fft_vdata_impulse[i]); |
| |
| for (j = 0; j < MAX_THREADS; j++) { |
| av_fft_end(s->fft[i][j]); |
| s->fft[i][j] = NULL; |
| av_fft_end(s->ifft[i][j]); |
| s->ifft[i][j] = NULL; |
| } |
| } |
| |
| ff_framesync_uninit(&s->fs); |
| } |
| |
| static const AVFilterPad convolve_inputs[] = { |
| { |
| .name = "main", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_input_main, |
| },{ |
| .name = "impulse", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_input_impulse, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad convolve_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| }, |
| { NULL } |
| }; |
| |
| #if CONFIG_CONVOLVE_FILTER |
| |
| FRAMESYNC_DEFINE_CLASS(convolve, ConvolveContext, fs); |
| |
| AVFilter ff_vf_convolve = { |
| .name = "convolve", |
| .description = NULL_IF_CONFIG_SMALL("Convolve first video stream with second video stream."), |
| .preinit = convolve_framesync_preinit, |
| .init = init, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .activate = activate, |
| .priv_size = sizeof(ConvolveContext), |
| .priv_class = &convolve_class, |
| .inputs = convolve_inputs, |
| .outputs = convolve_outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
| }; |
| |
| #endif /* CONFIG_CONVOLVE_FILTER */ |
| |
| #if CONFIG_DECONVOLVE_FILTER |
| |
| static const AVOption deconvolve_options[] = { |
| { "planes", "set planes to deconvolve", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, FLAGS }, |
| { "impulse", "when to process impulses", OFFSET(impulse), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "impulse" }, |
| { "first", "process only first impulse, ignore rest", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "impulse" }, |
| { "all", "process all impulses", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "impulse" }, |
| { "noise", "set noise", OFFSET(noise), AV_OPT_TYPE_FLOAT, {.dbl=0.0000001}, 0, 1, FLAGS }, |
| { NULL }, |
| }; |
| |
| FRAMESYNC_DEFINE_CLASS(deconvolve, ConvolveContext, fs); |
| |
| AVFilter ff_vf_deconvolve = { |
| .name = "deconvolve", |
| .description = NULL_IF_CONFIG_SMALL("Deconvolve first video stream with second video stream."), |
| .preinit = deconvolve_framesync_preinit, |
| .init = init, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .activate = activate, |
| .priv_size = sizeof(ConvolveContext), |
| .priv_class = &deconvolve_class, |
| .inputs = convolve_inputs, |
| .outputs = convolve_outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
| }; |
| |
| #endif /* CONFIG_DECONVOLVE_FILTER */ |
