| /* |
| * Copyright (c) 2015 Arwa Arif <arwaarif1994@gmail.com> |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * FFT domain filtering. |
| */ |
| |
| #include "libavfilter/internal.h" |
| #include "libavutil/common.h" |
| #include "libavutil/cpu.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/tx.h" |
| #include "libavutil/eval.h" |
| |
| #define MAX_THREADS 32 |
| #define MAX_PLANES 4 |
| |
| enum EvalMode { |
| EVAL_MODE_INIT, |
| EVAL_MODE_FRAME, |
| EVAL_MODE_NB |
| }; |
| |
| typedef struct FFTFILTContext { |
| const AVClass *class; |
| |
| int eval_mode; |
| int depth; |
| int nb_planes; |
| int nb_threads; |
| int planewidth[MAX_PLANES]; |
| int planeheight[MAX_PLANES]; |
| |
| AVTXContext *hrdft[MAX_THREADS][MAX_PLANES]; |
| AVTXContext *vrdft[MAX_THREADS][MAX_PLANES]; |
| AVTXContext *ihrdft[MAX_THREADS][MAX_PLANES]; |
| AVTXContext *ivrdft[MAX_THREADS][MAX_PLANES]; |
| |
| av_tx_fn htx_fn, ihtx_fn; |
| av_tx_fn vtx_fn, ivtx_fn; |
| |
| int rdft_hbits[MAX_PLANES]; |
| int rdft_vbits[MAX_PLANES]; |
| size_t rdft_hstride[MAX_PLANES]; |
| size_t rdft_vstride[MAX_PLANES]; |
| size_t rdft_hlen[MAX_PLANES]; |
| size_t rdft_vlen[MAX_PLANES]; |
| float *rdft_hdata_in[MAX_PLANES]; |
| float *rdft_vdata_in[MAX_PLANES]; |
| float *rdft_hdata_out[MAX_PLANES]; |
| float *rdft_vdata_out[MAX_PLANES]; |
| |
| int dc[MAX_PLANES]; |
| char *weight_str[MAX_PLANES]; |
| AVExpr *weight_expr[MAX_PLANES]; |
| double *weight[MAX_PLANES]; |
| |
| 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", "WS", "HS", NULL }; |
| enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_N, VAR_WS, VAR_HS, VAR_VARS_NB }; |
| |
| enum { Y = 0, U, V }; |
| |
| #define OFFSET(x) offsetof(FFTFILTContext, x) |
| #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
| |
| static const AVOption fftfilt_options[] = { |
| { "dc_Y", "adjust gain in Y plane", OFFSET(dc[Y]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS }, |
| { "dc_U", "adjust gain in U plane", OFFSET(dc[U]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS }, |
| { "dc_V", "adjust gain in V plane", OFFSET(dc[V]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS }, |
| { "weight_Y", "set luminance expression in Y plane", OFFSET(weight_str[Y]), AV_OPT_TYPE_STRING, {.str = "1"}, 0, 0, FLAGS }, |
| { "weight_U", "set chrominance expression in U plane", OFFSET(weight_str[U]), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, |
| { "weight_V", "set chrominance expression in V plane", OFFSET(weight_str[V]), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, |
| { "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_INIT}, 0, EVAL_MODE_NB-1, FLAGS, "eval" }, |
| { "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" }, |
| { "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" }, |
| {NULL}, |
| }; |
| |
| AVFILTER_DEFINE_CLASS(fftfilt); |
| |
| static inline double lum(void *priv, double x, double y, int plane) |
| { |
| FFTFILTContext *s = priv; |
| return s->rdft_vdata_out[plane][(int)x * s->rdft_vstride[plane] + (int)y]; |
| } |
| |
| static double weight_Y(void *priv, double x, double y) { return lum(priv, x, y, 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(float *dest, int w, int w2) |
| { |
| int i; |
| |
| for (i = w; i < w + (w2-w)/2; i++) |
| dest[i] = dest[2*w - i - 1]; |
| |
| for (; i < w2; i++) |
| dest[i] = dest[w2 - i]; |
| } |
| |
| static int rdft_horizontal8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| FFTFILTContext *s = ctx->priv; |
| AVFrame *in = arg; |
| |
| 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++) { |
| const uint8_t *src = in->data[plane] + i * in->linesize[plane]; |
| float *hdata_in = s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane]; |
| |
| for (int j = 0; j < w; j++) |
| hdata_in[j] = src[j]; |
| |
| copy_rev(s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane], w, s->rdft_hlen[plane]); |
| } |
| |
| for (int i = slice_start; i < slice_end; i++) |
| s->htx_fn(s->hrdft[jobnr][plane], |
| s->rdft_hdata_out[plane] + i * s->rdft_hstride[plane], |
| s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane], |
| sizeof(float)); |
| } |
| |
| return 0; |
| } |
| |
| static int rdft_horizontal16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| FFTFILTContext *s = ctx->priv; |
| AVFrame *in = arg; |
| |
| 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++) { |
| const uint16_t *src = (const uint16_t *)(in->data[plane] + i * in->linesize[plane]); |
| float *hdata_in = s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane]; |
| |
| for (int j = 0; j < w; j++) |
| hdata_in[j] = src[j]; |
| |
| copy_rev(s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane], w, s->rdft_hlen[plane]); |
| } |
| |
| for (int i = slice_start; i < slice_end; i++) |
| s->htx_fn(s->hrdft[jobnr][plane], |
| s->rdft_hdata_out[plane] + i * s->rdft_hstride[plane], |
| s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane], |
| sizeof(float)); |
| } |
| |
| return 0; |
| } |
| |
| static int irdft_horizontal8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| FFTFILTContext *s = ctx->priv; |
| AVFrame *out = arg; |
| |
| 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++) |
| s->ihtx_fn(s->ihrdft[jobnr][plane], |
| s->rdft_hdata_out[plane] + i * s->rdft_hstride[plane], |
| s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane], |
| sizeof(AVComplexFloat)); |
| |
| for (int i = slice_start; i < slice_end; i++) { |
| const float scale = 1.f / (s->rdft_hlen[plane] * s->rdft_vlen[plane]); |
| const float *src = s->rdft_hdata_out[plane] + i * s->rdft_hstride[plane]; |
| uint8_t *dst = out->data[plane] + i * out->linesize[plane]; |
| |
| for (int j = 0; j < w; j++) |
| dst[j] = av_clip_uint8(lrintf(src[j] * scale)); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int irdft_horizontal16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| FFTFILTContext *s = ctx->priv; |
| AVFrame *out = arg; |
| |
| 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 (int i = slice_start; i < slice_end; i++) |
| s->ihtx_fn(s->ihrdft[jobnr][plane], |
| s->rdft_hdata_out[plane] + i * s->rdft_hstride[plane], |
| s->rdft_hdata_in[plane] + i * s->rdft_hstride[plane], |
| sizeof(AVComplexFloat)); |
| |
| for (int i = slice_start; i < slice_end; i++) { |
| const float scale = 1.f / (s->rdft_hlen[plane] * s->rdft_vlen[plane]); |
| const float *src = s->rdft_hdata_out[plane] + i * s->rdft_hstride[plane]; |
| uint16_t *dst = (uint16_t *)(out->data[plane] + i * out->linesize[plane]); |
| |
| for (int j = 0; j < w; j++) |
| dst[j] = av_clip(lrintf(src[j] * scale), 0, max); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static av_cold int initialize(AVFilterContext *ctx) |
| { |
| FFTFILTContext *s = ctx->priv; |
| int ret = 0, plane; |
| |
| if (!s->dc[U] && !s->dc[V]) { |
| s->dc[U] = s->dc[Y]; |
| s->dc[V] = s->dc[Y]; |
| } else { |
| if (!s->dc[U]) s->dc[U] = s->dc[V]; |
| if (!s->dc[V]) s->dc[V] = s->dc[U]; |
| } |
| |
| if (!s->weight_str[U] && !s->weight_str[V]) { |
| s->weight_str[U] = av_strdup(s->weight_str[Y]); |
| s->weight_str[V] = av_strdup(s->weight_str[Y]); |
| } else { |
| if (!s->weight_str[U]) s->weight_str[U] = av_strdup(s->weight_str[V]); |
| if (!s->weight_str[V]) s->weight_str[V] = av_strdup(s->weight_str[U]); |
| } |
| |
| for (plane = 0; plane < 3; plane++) { |
| static double (*p[])(void *, double, double) = { weight_Y, weight_U, weight_V }; |
| const char *const func2_names[] = {"weight_Y", "weight_U", "weight_V", NULL }; |
| double (*func2[])(void *, double, double) = { weight_Y, weight_U, weight_V, p[plane], NULL }; |
| |
| ret = av_expr_parse(&s->weight_expr[plane], s->weight_str[plane], var_names, |
| NULL, NULL, func2_names, func2, 0, ctx); |
| if (ret < 0) |
| break; |
| } |
| return ret; |
| } |
| |
| static void do_eval(FFTFILTContext *s, AVFilterLink *inlink, int plane) |
| { |
| double values[VAR_VARS_NB]; |
| int i, j; |
| |
| values[VAR_N] = inlink->frame_count_out; |
| values[VAR_W] = s->planewidth[plane]; |
| values[VAR_H] = s->planeheight[plane]; |
| values[VAR_WS] = s->rdft_hlen[plane]; |
| values[VAR_HS] = s->rdft_vlen[plane]; |
| |
| for (i = 0; i < s->rdft_hlen[plane]; i++) { |
| values[VAR_X] = i; |
| for (j = 0; j < s->rdft_vlen[plane]; j++) { |
| values[VAR_Y] = j; |
| s->weight[plane][i * s->rdft_vlen[plane] + j] = |
| av_expr_eval(s->weight_expr[plane], values, s); |
| } |
| } |
| } |
| |
| static int config_props(AVFilterLink *inlink) |
| { |
| FFTFILTContext *s = inlink->dst->priv; |
| const AVPixFmtDescriptor *desc; |
| int ret, i, plane; |
| |
| desc = av_pix_fmt_desc_get(inlink->format); |
| s->depth = desc->comp[0].depth; |
| 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 = 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]; |
| int h = s->planeheight[i]; |
| |
| /* RDFT - Array initialization for Horizontal pass*/ |
| s->rdft_hlen[i] = 1 << (32 - ff_clz(w)); |
| s->rdft_hstride[i] = FFALIGN(s->rdft_hlen[i] + 2, av_cpu_max_align()); |
| s->rdft_hbits[i] = av_log2(s->rdft_hlen[i]); |
| if (!(s->rdft_hdata_in[i] = av_calloc(h, s->rdft_hstride[i] * sizeof(float)))) |
| return AVERROR(ENOMEM); |
| |
| if (!(s->rdft_hdata_out[i] = av_calloc(h, s->rdft_hstride[i] * sizeof(float)))) |
| return AVERROR(ENOMEM); |
| |
| for (int j = 0; j < s->nb_threads; j++) { |
| float scale = 1.f, iscale = 1.f; |
| |
| ret = av_tx_init(&s->hrdft[j][i], &s->htx_fn, AV_TX_FLOAT_RDFT, |
| 0, 1 << s->rdft_hbits[i], &scale, 0); |
| if (ret < 0) |
| return ret; |
| ret = av_tx_init(&s->ihrdft[j][i], &s->ihtx_fn, AV_TX_FLOAT_RDFT, |
| 1, 1 << s->rdft_hbits[i], &iscale, 0); |
| if (ret < 0) |
| return ret; |
| } |
| |
| /* RDFT - Array initialization for Vertical pass*/ |
| s->rdft_vlen[i] = 1 << (32 - ff_clz(h)); |
| s->rdft_vstride[i] = FFALIGN(s->rdft_vlen[i] + 2, av_cpu_max_align()); |
| s->rdft_vbits[i] = av_log2(s->rdft_vlen[i]); |
| if (!(s->rdft_vdata_in[i] = av_calloc(s->rdft_hstride[i], s->rdft_vstride[i] * sizeof(float)))) |
| return AVERROR(ENOMEM); |
| |
| if (!(s->rdft_vdata_out[i] = av_calloc(s->rdft_hstride[i], s->rdft_vstride[i] * sizeof(float)))) |
| return AVERROR(ENOMEM); |
| |
| for (int j = 0; j < s->nb_threads; j++) { |
| float scale = 1.f, iscale = 1.f; |
| |
| ret = av_tx_init(&s->vrdft[j][i], &s->vtx_fn, AV_TX_FLOAT_RDFT, |
| 0, 1 << s->rdft_vbits[i], &scale, 0); |
| if (ret < 0) |
| return ret; |
| ret = av_tx_init(&s->ivrdft[j][i], &s->ivtx_fn, AV_TX_FLOAT_RDFT, |
| 1, 1 << s->rdft_vbits[i], &iscale, 0); |
| if (ret < 0) |
| return ret; |
| } |
| } |
| |
| /*Luminance value - Array initialization*/ |
| for (plane = 0; plane < 3; plane++) { |
| if(!(s->weight[plane] = av_calloc(s->rdft_hlen[plane], s->rdft_vlen[plane] * sizeof(double)))) |
| return AVERROR(ENOMEM); |
| |
| if (s->eval_mode == EVAL_MODE_INIT) |
| do_eval(s, inlink, plane); |
| } |
| |
| if (s->depth <= 8) { |
| s->rdft_horizontal = rdft_horizontal8; |
| s->irdft_horizontal = irdft_horizontal8; |
| } else if (s->depth > 8) { |
| s->rdft_horizontal = rdft_horizontal16; |
| s->irdft_horizontal = irdft_horizontal16; |
| } else { |
| return AVERROR_BUG; |
| } |
| 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_out[plane] + i * s->rdft_vstride[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 hstride = s->rdft_hstride[plane]; |
| const int vstride = s->rdft_vstride[plane]; |
| const int slice_start = (hlen * jobnr) / nb_jobs; |
| const int slice_end = (hlen * (jobnr+1)) / nb_jobs; |
| const int h = s->planeheight[plane]; |
| float *hdata = s->rdft_hdata_out[plane]; |
| float *vdata = s->rdft_vdata_in[plane]; |
| |
| for (int i = slice_start; i < slice_end; i++) { |
| for (int j = 0; j < h; j++) |
| vdata[i * vstride + j] = hdata[j * hstride + i]; |
| copy_rev(vdata + i * vstride, 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++) |
| s->vtx_fn(s->vrdft[jobnr][plane], |
| s->rdft_vdata_out[plane] + i * s->rdft_vstride[plane], |
| s->rdft_vdata_in[plane] + i * s->rdft_vstride[plane], |
| sizeof(float)); |
| } |
| |
| 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++) |
| s->ivtx_fn(s->ivrdft[jobnr][plane], |
| s->rdft_vdata_in[plane] + i * s->rdft_vstride[plane], |
| s->rdft_vdata_out[plane] + i * s->rdft_vstride[plane], |
| sizeof(AVComplexFloat)); |
| } |
| |
| 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 hstride = s->rdft_hstride[plane]; |
| const int vstride = s->rdft_vstride[plane]; |
| const int slice_start = (hlen * jobnr) / nb_jobs; |
| const int slice_end = (hlen * (jobnr+1)) / nb_jobs; |
| const int h = s->planeheight[plane]; |
| float *hdata = s->rdft_hdata_in[plane]; |
| float *vdata = s->rdft_vdata_in[plane]; |
| |
| for (int i = slice_start; i < slice_end; i++) |
| for (int j = 0; j < h; j++) |
| hdata[j * hstride + i] = vdata[i * vstride + 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; |
| |
| out = ff_get_video_buffer(outlink, inlink->w, inlink->h); |
| if (!out) { |
| av_frame_free(&in); |
| return AVERROR(ENOMEM); |
| } |
| |
| av_frame_copy_props(out, in); |
| |
| ff_filter_execute(ctx, s->rdft_horizontal, in, NULL, |
| FFMIN(s->planeheight[1], s->nb_threads)); |
| |
| 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)); |
| |
| for (int plane = 0; plane < s->nb_planes; plane++) { |
| if (s->eval_mode == EVAL_MODE_FRAME) |
| do_eval(s, inlink, plane); |
| } |
| |
| 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_out[plane][0] += s->rdft_hlen[plane] * s->rdft_vlen[plane] * s->dc[plane] * (1 << (s->depth - 8)); |
| |
| 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); |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| FFTFILTContext *s = ctx->priv; |
| |
| for (int i = 0; i < MAX_PLANES; i++) { |
| av_freep(&s->rdft_hdata_in[i]); |
| av_freep(&s->rdft_vdata_in[i]); |
| av_freep(&s->rdft_hdata_out[i]); |
| av_freep(&s->rdft_vdata_out[i]); |
| av_expr_free(s->weight_expr[i]); |
| av_freep(&s->weight[i]); |
| for (int j = 0; j < s->nb_threads; j++) { |
| av_tx_uninit(&s->hrdft[j][i]); |
| av_tx_uninit(&s->ihrdft[j][i]); |
| av_tx_uninit(&s->vrdft[j][i]); |
| av_tx_uninit(&s->ivrdft[j][i]); |
| } |
| } |
| } |
| |
| static const enum AVPixelFormat pixel_fmts_fftfilt[] = { |
| 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_YUV444P, AV_PIX_FMT_YUVJ444P, |
| AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, |
| AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P, |
| AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, |
| AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14, |
| AV_PIX_FMT_YUV420P16, |
| AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10, |
| AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14, |
| AV_PIX_FMT_YUV422P16, |
| AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10, |
| AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14, |
| AV_PIX_FMT_YUV444P16, |
| AV_PIX_FMT_NONE |
| }; |
| |
| static const AVFilterPad fftfilt_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_props, |
| .filter_frame = filter_frame, |
| }, |
| }; |
| |
| static const AVFilterPad fftfilt_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| }; |
| |
| const AVFilter ff_vf_fftfilt = { |
| .name = "fftfilt", |
| .description = NULL_IF_CONFIG_SMALL("Apply arbitrary expressions to pixels in frequency domain."), |
| .priv_size = sizeof(FFTFILTContext), |
| .priv_class = &fftfilt_class, |
| FILTER_INPUTS(fftfilt_inputs), |
| FILTER_OUTPUTS(fftfilt_outputs), |
| FILTER_PIXFMTS_ARRAY(pixel_fmts_fftfilt), |
| .init = initialize, |
| .uninit = uninit, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| }; |