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513 lines
25 KiB
513 lines
25 KiB
/* |
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* Copyright (c) 2017 Ming Yang |
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* Copyright (c) 2019 Paul B Mahol |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#include "libavutil/imgutils.h" |
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#include "libavutil/mem.h" |
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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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#include "filters.h" |
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#include "video.h" |
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typedef struct BilateralContext { |
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const AVClass *class; |
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float sigmaS; |
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float sigmaR; |
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int planes; |
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int nb_threads; |
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int nb_planes; |
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int depth; |
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int planewidth[4]; |
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int planeheight[4]; |
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float alpha; |
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float range_table[65536]; |
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float *img_out_f[4]; |
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float *img_temp[4]; |
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float *map_factor_a[4]; |
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float *map_factor_b[4]; |
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float *slice_factor_a[4]; |
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float *slice_factor_b[4]; |
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float *line_factor_a[4]; |
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float *line_factor_b[4]; |
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} BilateralContext; |
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#define OFFSET(x) offsetof(BilateralContext, x) |
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
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static const AVOption bilateral_options[] = { |
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{ "sigmaS", "set spatial sigma", OFFSET(sigmaS), AV_OPT_TYPE_FLOAT, {.dbl=0.1}, 0.0, 512, FLAGS }, |
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{ "sigmaR", "set range sigma", OFFSET(sigmaR), AV_OPT_TYPE_FLOAT, {.dbl=0.1}, 0.0, 1, FLAGS }, |
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{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=1}, 0, 0xF, FLAGS }, |
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{ NULL } |
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}; |
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AVFILTER_DEFINE_CLASS(bilateral); |
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static const enum AVPixelFormat pix_fmts[] = { |
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, |
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, |
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AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, |
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AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
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AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, |
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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_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, |
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AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, |
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
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AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
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AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
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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_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, |
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16, |
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AV_PIX_FMT_NONE |
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}; |
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static int config_params(AVFilterContext *ctx) |
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{ |
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BilateralContext *s = ctx->priv; |
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float inv_sigma_range; |
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inv_sigma_range = 1.0f / (s->sigmaR * ((1 << s->depth) - 1)); |
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s->alpha = expf(-sqrtf(2.f) / s->sigmaS); |
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//compute a lookup table |
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for (int i = 0; i < (1 << s->depth); i++) |
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s->range_table[i] = s->alpha * expf(-i * inv_sigma_range); |
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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 config_input(AVFilterLink *inlink) |
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{ |
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AVFilterContext *ctx = inlink->dst; |
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BilateralContext *s = ctx->priv; |
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
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s->depth = desc->comp[0].depth; |
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config_params(ctx); |
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s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
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s->planewidth[0] = s->planewidth[3] = inlink->w; |
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s->planeheight[1] = s->planeheight[2] = AV_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->nb_planes = av_pix_fmt_count_planes(inlink->format); |
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s->nb_threads = ff_filter_get_nb_threads(ctx); |
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for (int p = 0; p < s->nb_planes; p++) { |
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const int w = s->planewidth[p]; |
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const int h = s->planeheight[p]; |
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s->img_out_f[p] = av_calloc(w * h, sizeof(float)); |
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s->img_temp[p] = av_calloc(w * h, sizeof(float)); |
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s->map_factor_a[p] = av_calloc(w * h, sizeof(float)); |
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s->map_factor_b[p] = av_calloc(w * h, sizeof(float)); |
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s->slice_factor_a[p] = av_calloc(w, sizeof(float)); |
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s->slice_factor_b[p] = av_calloc(w, sizeof(float)); |
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s->line_factor_a[p] = av_calloc(w, sizeof(float)); |
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s->line_factor_b[p] = av_calloc(w, sizeof(float)); |
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if (!s->img_out_f[p] || |
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!s->img_temp[p] || |
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!s->map_factor_a[p] || |
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!s->map_factor_b[p] || |
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!s->slice_factor_a[p] || |
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!s->slice_factor_a[p] || |
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!s->line_factor_a[p] || |
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!s->line_factor_a[p]) |
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return AVERROR(ENOMEM); |
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} |
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return 0; |
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} |
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#define BILATERAL_H(type, name) \ |
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static void bilateralh_##name(BilateralContext *s, AVFrame *out, AVFrame *in, \ |
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int jobnr, int nb_jobs, int plane) \ |
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{ \ |
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const int width = s->planewidth[plane]; \ |
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const int height = s->planeheight[plane]; \ |
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const int slice_start = (height * jobnr) / nb_jobs; \ |
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const int slice_end = (height * (jobnr+1)) / nb_jobs; \ |
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const int src_linesize = in->linesize[plane] / sizeof(type); \ |
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const type *src = (const type *)in->data[plane]; \ |
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float *img_temp = s->img_temp[plane]; \ |
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float *map_factor_a = s->map_factor_a[plane]; \ |
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const float *const range_table = s->range_table; \ |
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const float alpha = s->alpha; \ |
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float ypr, ycr, fp, fc; \ |
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const float inv_alpha_ = 1.f - alpha; \ |
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\ |
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for (int y = slice_start; y < slice_end; y++) { \ |
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float *temp_factor_x, *temp_x = &img_temp[y * width]; \ |
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const type *in_x = &src[y * src_linesize]; \ |
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const type *texture_x = &src[y * src_linesize]; \ |
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type tpr; \ |
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\ |
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*temp_x++ = ypr = *in_x++; \ |
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tpr = *texture_x++; \ |
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\ |
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temp_factor_x = &map_factor_a[y * width]; \ |
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*temp_factor_x++ = fp = 1; \ |
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\ |
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for (int x = 1; x < width; x++) { \ |
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float alpha_; \ |
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int range_dist; \ |
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type tcr = *texture_x++; \ |
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type dr = abs(tcr - tpr); \ |
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\ |
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range_dist = dr; \ |
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alpha_ = range_table[range_dist]; \ |
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*temp_x++ = ycr = inv_alpha_*(*in_x++) + alpha_*ypr; \ |
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tpr = tcr; \ |
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ypr = ycr; \ |
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*temp_factor_x++ = fc = inv_alpha_ + alpha_ * fp; \ |
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fp = fc; \ |
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} \ |
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--temp_x; *temp_x = ((*temp_x) + (*--in_x)); \ |
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tpr = *--texture_x; \ |
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ypr = *in_x; \ |
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\ |
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--temp_factor_x; *temp_factor_x = ((*temp_factor_x) + 1); \ |
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fp = 1; \ |
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\ |
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for (int x = width - 2; x >= 0; x--) { \ |
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type tcr = *--texture_x; \ |
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type dr = abs(tcr - tpr); \ |
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int range_dist = dr; \ |
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float alpha_ = range_table[range_dist]; \ |
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\ |
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ycr = inv_alpha_ * (*--in_x) + alpha_ * ypr; \ |
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--temp_x; *temp_x = ((*temp_x) + ycr); \ |
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tpr = tcr; \ |
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ypr = ycr; \ |
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\ |
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fc = inv_alpha_ + alpha_*fp; \ |
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--temp_factor_x; \ |
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*temp_factor_x = ((*temp_factor_x) + fc); \ |
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fp = fc; \ |
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} \ |
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} \ |
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} |
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BILATERAL_H(uint8_t, byte) |
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BILATERAL_H(uint16_t, word) |
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#define BILATERAL_V(type, name) \ |
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static void bilateralv_##name(BilateralContext *s, AVFrame *out, AVFrame *in, \ |
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int jobnr, int nb_jobs, int plane) \ |
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{ \ |
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const int width = s->planewidth[plane]; \ |
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const int height = s->planeheight[plane]; \ |
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const int slice_start = (width * jobnr) / nb_jobs; \ |
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const int slice_end = (width * (jobnr+1)) / nb_jobs; \ |
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const int src_linesize = in->linesize[plane] / sizeof(type); \ |
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const type *src = (const type *)in->data[plane] + slice_start; \ |
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float *img_out_f = s->img_out_f[plane] + slice_start; \ |
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float *img_temp = s->img_temp[plane] + slice_start; \ |
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float *map_factor_a = s->map_factor_a[plane] + slice_start; \ |
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float *map_factor_b = s->map_factor_b[plane] + slice_start; \ |
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float *slice_factor_a = s->slice_factor_a[plane] + slice_start; \ |
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float *slice_factor_b = s->slice_factor_b[plane] + slice_start; \ |
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float *line_factor_a = s->line_factor_a[plane] + slice_start; \ |
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float *line_factor_b = s->line_factor_b[plane] + slice_start; \ |
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const float *const range_table = s->range_table; \ |
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const float alpha = s->alpha; \ |
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float *ycy, *ypy, *xcy; \ |
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const float inv_alpha_ = 1.f - alpha; \ |
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float *ycf, *ypf, *xcf, *in_factor; \ |
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const type *tcy, *tpy; \ |
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int h1; \ |
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\ |
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memcpy(img_out_f, img_temp, sizeof(float) * (slice_end - slice_start)); \ |
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\ |
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in_factor = map_factor_a; \ |
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memcpy(map_factor_b, in_factor, sizeof(float) * (slice_end - slice_start)); \ |
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for (int y = 1; y < height; y++) { \ |
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tpy = &src[(y - 1) * src_linesize]; \ |
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tcy = &src[y * src_linesize]; \ |
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xcy = &img_temp[y * width]; \ |
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ypy = &img_out_f[(y - 1) * width]; \ |
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ycy = &img_out_f[y * width]; \ |
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\ |
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xcf = &in_factor[y * width]; \ |
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ypf = &map_factor_b[(y - 1) * width]; \ |
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ycf = &map_factor_b[y * width]; \ |
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for (int x = 0; x < slice_end - slice_start; x++) { \ |
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type dr = abs((*tcy++) - (*tpy++)); \ |
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int range_dist = dr; \ |
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float alpha_ = range_table[range_dist]; \ |
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\ |
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*ycy++ = inv_alpha_*(*xcy++) + alpha_*(*ypy++); \ |
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*ycf++ = inv_alpha_*(*xcf++) + alpha_*(*ypf++); \ |
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} \ |
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} \ |
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h1 = height - 1; \ |
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ycf = line_factor_a; \ |
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ypf = line_factor_b; \ |
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memcpy(ypf, &in_factor[h1 * width], sizeof(float) * (slice_end - slice_start)); \ |
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for (int x = 0, k = 0; x < slice_end - slice_start; x++) \ |
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map_factor_b[h1 * width + x] = (map_factor_b[h1 * width + x] + ypf[k++]); \ |
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\ |
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ycy = slice_factor_a; \ |
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ypy = slice_factor_b; \ |
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memcpy(ypy, &img_temp[h1 * width], sizeof(float) * (slice_end - slice_start)); \ |
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for (int x = 0, k = 0; x < slice_end - slice_start; x++) { \ |
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int idx = h1 * width + x; \ |
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img_out_f[idx] = (img_out_f[idx] + ypy[k++]) / map_factor_b[h1 * width + x]; \ |
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} \ |
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\ |
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for (int y = h1 - 1; y >= 0; y--) { \ |
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float *ycf_, *ypf_, *factor_; \ |
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float *ycy_, *ypy_, *out_; \ |
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\ |
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tpy = &src[(y + 1) * src_linesize]; \ |
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tcy = &src[y * src_linesize]; \ |
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xcy = &img_temp[y * width]; \ |
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ycy_ = ycy; \ |
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ypy_ = ypy; \ |
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out_ = &img_out_f[y * width]; \ |
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\ |
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xcf = &in_factor[y * width]; \ |
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ycf_ = ycf; \ |
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ypf_ = ypf; \ |
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factor_ = &map_factor_b[y * width]; \ |
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for (int x = 0; x < slice_end - slice_start; x++) { \ |
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type dr = abs((*tcy++) - (*tpy++)); \ |
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int range_dist = dr; \ |
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float alpha_ = range_table[range_dist]; \ |
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float ycc, fcc = inv_alpha_*(*xcf++) + alpha_*(*ypf_++); \ |
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\ |
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*ycf_++ = fcc; \ |
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*factor_ = (*factor_ + fcc); \ |
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\ |
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ycc = inv_alpha_*(*xcy++) + alpha_*(*ypy_++); \ |
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*ycy_++ = ycc; \ |
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*out_ = (*out_ + ycc) / (*factor_); \ |
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out_++; \ |
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factor_++; \ |
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} \ |
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\ |
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ypy = ycy; \ |
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ypf = ycf; \ |
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} \ |
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} |
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BILATERAL_V(uint8_t, byte) |
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BILATERAL_V(uint16_t, word) |
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#define BILATERAL_O(type, name) \ |
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static void bilateralo_##name(BilateralContext *s, AVFrame *out, AVFrame *in, \ |
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int jobnr, int nb_jobs, int plane) \ |
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{ \ |
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const int width = s->planewidth[plane]; \ |
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const int height = s->planeheight[plane]; \ |
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const int slice_start = (height * jobnr) / nb_jobs; \ |
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const int slice_end = (height * (jobnr+1)) / nb_jobs; \ |
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const int dst_linesize = out->linesize[plane] / sizeof(type); \ |
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\ |
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for (int i = slice_start; i < slice_end; i++) { \ |
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type *dst = (type *)out->data[plane] + i * dst_linesize; \ |
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const float *const img_out_f = s->img_out_f[plane] + i * width; \ |
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for (int j = 0; j < width; j++) \ |
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dst[j] = lrintf(img_out_f[j]); \ |
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} \ |
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} |
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BILATERAL_O(uint8_t, byte) |
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BILATERAL_O(uint16_t, word) |
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static int bilateralh_planes(AVFilterContext *ctx, void *arg, |
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int jobnr, int nb_jobs) |
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{ |
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BilateralContext *s = ctx->priv; |
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ThreadData *td = arg; |
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AVFrame *out = td->out; |
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AVFrame *in = td->in; |
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for (int plane = 0; plane < s->nb_planes; plane++) { |
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if (!(s->planes & (1 << plane))) |
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continue; |
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if (s->depth <= 8) |
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bilateralh_byte(s, out, in, jobnr, nb_jobs, plane); |
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else |
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bilateralh_word(s, out, in, jobnr, nb_jobs, plane); |
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} |
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return 0; |
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} |
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static int bilateralv_planes(AVFilterContext *ctx, void *arg, |
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int jobnr, int nb_jobs) |
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{ |
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BilateralContext *s = ctx->priv; |
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ThreadData *td = arg; |
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AVFrame *out = td->out; |
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AVFrame *in = td->in; |
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for (int plane = 0; plane < s->nb_planes; plane++) { |
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if (!(s->planes & (1 << plane))) |
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continue; |
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if (s->depth <= 8) |
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bilateralv_byte(s, out, in, jobnr, nb_jobs, plane); |
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else |
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bilateralv_word(s, out, in, jobnr, nb_jobs, plane); |
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} |
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return 0; |
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} |
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static int bilateralo_planes(AVFilterContext *ctx, void *arg, |
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int jobnr, int nb_jobs) |
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{ |
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BilateralContext *s = ctx->priv; |
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ThreadData *td = arg; |
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AVFrame *out = td->out; |
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AVFrame *in = td->in; |
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for (int plane = 0; plane < s->nb_planes; plane++) { |
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if (!(s->planes & (1 << plane))) { |
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if (out != in) { |
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const int height = s->planeheight[plane]; |
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const int slice_start = (height * jobnr) / nb_jobs; |
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const int slice_end = (height * (jobnr+1)) / nb_jobs; |
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const int width = s->planewidth[plane]; |
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const int linesize = in->linesize[plane]; |
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const int dst_linesize = out->linesize[plane]; |
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const uint8_t *src = in->data[plane]; |
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uint8_t *dst = out->data[plane]; |
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av_image_copy_plane(dst + slice_start * dst_linesize, |
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dst_linesize, |
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src + slice_start * linesize, |
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linesize, |
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width * ((s->depth + 7) / 8), |
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slice_end - slice_start); |
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} |
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continue; |
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} |
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if (s->depth <= 8) |
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bilateralo_byte(s, out, in, jobnr, nb_jobs, plane); |
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else |
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bilateralo_word(s, out, in, jobnr, nb_jobs, plane); |
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} |
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return 0; |
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} |
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static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
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{ |
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AVFilterContext *ctx = inlink->dst; |
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BilateralContext *s = ctx->priv; |
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AVFilterLink *outlink = ctx->outputs[0]; |
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ThreadData td; |
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AVFrame *out; |
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if (av_frame_is_writable(in)) { |
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out = in; |
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} else { |
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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(&in); |
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return AVERROR(ENOMEM); |
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} |
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av_frame_copy_props(out, in); |
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} |
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td.in = in; |
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td.out = out; |
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ff_filter_execute(ctx, bilateralh_planes, &td, NULL, s->nb_threads); |
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ff_filter_execute(ctx, bilateralv_planes, &td, NULL, s->nb_threads); |
|
ff_filter_execute(ctx, bilateralo_planes, &td, NULL, s->nb_threads); |
|
|
|
if (out != in) |
|
av_frame_free(&in); |
|
return ff_filter_frame(outlink, out); |
|
} |
|
|
|
static av_cold void uninit(AVFilterContext *ctx) |
|
{ |
|
BilateralContext *s = ctx->priv; |
|
|
|
for (int p = 0; p < s->nb_planes; p++) { |
|
av_freep(&s->img_out_f[p]); |
|
av_freep(&s->img_temp[p]); |
|
av_freep(&s->map_factor_a[p]); |
|
av_freep(&s->map_factor_b[p]); |
|
av_freep(&s->slice_factor_a[p]); |
|
av_freep(&s->slice_factor_b[p]); |
|
av_freep(&s->line_factor_a[p]); |
|
av_freep(&s->line_factor_b[p]); |
|
} |
|
} |
|
|
|
static int process_command(AVFilterContext *ctx, |
|
const char *cmd, |
|
const char *arg, |
|
char *res, |
|
int res_len, |
|
int flags) |
|
{ |
|
int ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags); |
|
|
|
if (ret < 0) |
|
return ret; |
|
|
|
return config_params(ctx); |
|
} |
|
|
|
static const AVFilterPad bilateral_inputs[] = { |
|
{ |
|
.name = "default", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.config_props = config_input, |
|
.filter_frame = filter_frame, |
|
}, |
|
}; |
|
|
|
const AVFilter ff_vf_bilateral = { |
|
.name = "bilateral", |
|
.description = NULL_IF_CONFIG_SMALL("Apply Bilateral filter."), |
|
.priv_size = sizeof(BilateralContext), |
|
.priv_class = &bilateral_class, |
|
.uninit = uninit, |
|
FILTER_INPUTS(bilateral_inputs), |
|
FILTER_OUTPUTS(ff_video_default_filterpad), |
|
FILTER_PIXFMTS_ARRAY(pix_fmts), |
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | |
|
AVFILTER_FLAG_SLICE_THREADS, |
|
.process_command = process_command, |
|
};
|
|
|