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https://github.com/FFmpeg/FFmpeg.git
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b4f5201967
If one looks at the many query_formats callbacks in existence, one will immediately recognize that there is one type of default callback for video and a slightly different default callback for audio: It is "return ff_set_common_formats_from_list(ctx, pix_fmts);" for video with a filter-specific pix_fmts list. For audio, it is the same with a filter-specific sample_fmts list together with ff_set_common_all_samplerates() and ff_set_common_all_channel_counts(). This commit allows to remove the boilerplate query_formats callbacks by replacing said callback with a union consisting the old callback and pointers for pixel and sample format arrays. For the not uncommon case in which these lists only contain a single entry (besides the sentinel) enum AVPixelFormat and enum AVSampleFormat fields are also added to the union to store them directly in the AVFilter, thereby avoiding a relocation. The state of said union will be contained in a new, dedicated AVFilter field (the nb_inputs and nb_outputs fields have been shrunk to uint8_t in order to create a hole for this new field; this is no problem, as the maximum of all the nb_inputs is four; for nb_outputs it is only two). The state's default value coincides with the earlier default of query_formats being unset, namely that the filter accepts all formats (and also sample rates and channel counts/layouts for audio) provided that these properties agree coincide for all inputs and outputs. By using different union members for audio and video filters the type-unsafety of using the same functions for audio and video lists will furthermore be more confined to formats.c than before. When the new fields are used, they will also avoid allocations: Currently something nearly equivalent to ff_default_query_formats() is called after every successful call to a query_formats callback; yet in the common case that the newly allocated AVFilterFormats are not used at all (namely if there are no free links) these newly allocated AVFilterFormats are freed again without ever being used. Filters no longer using the callback will not exhibit this any more. Reviewed-by: Paul B Mahol <onemda@gmail.com> Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
392 lines
21 KiB
C
392 lines
21 KiB
C
/*
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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/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.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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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_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;
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float *img_temp;
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float *map_factor_a;
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float *map_factor_b;
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float *slice_factor_a;
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float *slice_factor_b;
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float *line_factor_a;
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float *line_factor_b;
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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 int query_formats(AVFilterContext *ctx)
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{
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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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return ff_set_common_formats_from_list(ctx, pix_fmts);
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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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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->img_out_f = av_calloc(inlink->w * inlink->h, sizeof(float));
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s->img_temp = av_calloc(inlink->w * inlink->h, sizeof(float));
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s->map_factor_a = av_calloc(inlink->w * inlink->h, sizeof(float));
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s->map_factor_b = av_calloc(inlink->w * inlink->h, sizeof(float));
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s->slice_factor_a = av_calloc(inlink->w, sizeof(float));
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s->slice_factor_b = av_calloc(inlink->w, sizeof(float));
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s->line_factor_a = av_calloc(inlink->w, sizeof(float));
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s->line_factor_b = av_calloc(inlink->w, sizeof(float));
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if (!s->img_out_f ||
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!s->img_temp ||
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!s->map_factor_a ||
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!s->map_factor_b ||
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!s->slice_factor_a ||
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!s->slice_factor_a ||
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!s->line_factor_a ||
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!s->line_factor_a)
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return AVERROR(ENOMEM);
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return 0;
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}
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#define BILATERAL(type, name) \
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static void bilateral_##name(BilateralContext *s, const uint8_t *ssrc, uint8_t *ddst, \
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float sigma_spatial, float sigma_range, \
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int width, int height, int src_linesize, int dst_linesize) \
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{ \
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type *dst = (type *)ddst; \
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const type *src = (const type *)ssrc; \
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float *img_out_f = s->img_out_f, *img_temp = s->img_temp; \
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float *map_factor_a = s->map_factor_a, *map_factor_b = s->map_factor_b; \
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float *slice_factor_a = s->slice_factor_a, *slice_factor_b = s->slice_factor_b; \
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float *line_factor_a = s->line_factor_a, *line_factor_b = s->line_factor_b; \
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const float *range_table = s->range_table; \
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const float alpha = s->alpha; \
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float ypr, ycr, *ycy, *ypy, *xcy, fp, fc; \
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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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for (int y = 0; y < height; 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 = 0.5f*((*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 = 0.5f*((*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 = 0.5f*((*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 = 0.5f*((*temp_factor_x) + fc); \
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fp = fc; \
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} \
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} \
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memcpy(img_out_f, img_temp, sizeof(float) * width); \
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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) * width); \
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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 < width; 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) * width); \
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for (int x = 0; x < width; x++) \
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map_factor_b[h1 * width + x] = 0.5f*(map_factor_b[h1 * width + x] + ypf[x]); \
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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) * width); \
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for (int x = 0, k = 0; x < width; x++) { \
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int idx = h1 * width + x; \
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img_out_f[idx] = 0.5f*(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 < width; 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_ = 0.5f * (*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_ = 0.5f * (*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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for (int i = 0; i < height; i++) \
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for (int j = 0; j < width; j++) \
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dst[j + i * dst_linesize] = img_out_f[i * width + j]; \
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}
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BILATERAL(uint8_t, byte)
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BILATERAL(uint16_t, word)
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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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AVFrame *out;
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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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for (int plane = 0; plane < s->nb_planes; plane++) {
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if (!(s->planes & (1 << plane))) {
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av_image_copy_plane(out->data[plane], out->linesize[plane],
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in->data[plane], in->linesize[plane],
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s->planewidth[plane] * ((s->depth + 7) / 8), s->planeheight[plane]);
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continue;
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}
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if (s->depth <= 8)
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bilateral_byte(s, in->data[plane], out->data[plane], s->sigmaS, s->sigmaR,
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s->planewidth[plane], s->planeheight[plane],
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in->linesize[plane], out->linesize[plane]);
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else
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bilateral_word(s, in->data[plane], out->data[plane], s->sigmaS, s->sigmaR,
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s->planewidth[plane], s->planeheight[plane],
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in->linesize[plane] / 2, out->linesize[plane] / 2);
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}
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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BilateralContext *s = ctx->priv;
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av_freep(&s->img_out_f);
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av_freep(&s->img_temp);
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av_freep(&s->map_factor_a);
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av_freep(&s->map_factor_b);
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av_freep(&s->slice_factor_a);
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av_freep(&s->slice_factor_b);
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av_freep(&s->line_factor_a);
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av_freep(&s->line_factor_b);
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}
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static int process_command(AVFilterContext *ctx,
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const char *cmd,
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const char *arg,
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char *res,
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int res_len,
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int flags)
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{
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int ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags);
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if (ret < 0)
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return ret;
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return config_params(ctx);
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}
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static const AVFilterPad bilateral_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_input,
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.filter_frame = filter_frame,
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},
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};
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static const AVFilterPad bilateral_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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};
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const AVFilter ff_vf_bilateral = {
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.name = "bilateral",
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.description = NULL_IF_CONFIG_SMALL("Apply Bilateral filter."),
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.priv_size = sizeof(BilateralContext),
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.priv_class = &bilateral_class,
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.uninit = uninit,
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FILTER_INPUTS(bilateral_inputs),
|
|
FILTER_OUTPUTS(bilateral_outputs),
|
|
FILTER_QUERY_FUNC(query_formats),
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
|
|
.process_command = process_command,
|
|
};
|