GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavfilter/af_amultiply.c Lines: 0 80 0.0 %
Date: 2020-08-14 10:39:37 Branches: 0 58 0.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2018 Paul B Mahol
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "libavutil/avassert.h"
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#include "libavutil/channel_layout.h"
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#include "libavutil/common.h"
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#include "libavutil/float_dsp.h"
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#include "libavutil/opt.h"
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#include "audio.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "filters.h"
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#include "internal.h"
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typedef struct AudioMultiplyContext {
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    const AVClass *class;
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    AVFrame *frames[2];
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    int planes;
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    int channels;
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    int samples_align;
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    AVFloatDSPContext *fdsp;
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} AudioMultiplyContext;
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static int query_formats(AVFilterContext *ctx)
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{
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    AVFilterFormats *formats;
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    AVFilterChannelLayouts *layouts;
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    static const enum AVSampleFormat sample_fmts[] = {
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        AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
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        AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBLP,
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        AV_SAMPLE_FMT_NONE
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    };
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    int ret;
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    layouts = ff_all_channel_counts();
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    if (!layouts)
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        return AVERROR(ENOMEM);
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    ret = ff_set_common_channel_layouts(ctx, layouts);
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    if (ret < 0)
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        return ret;
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    formats = ff_make_format_list(sample_fmts);
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    if (!formats)
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        return AVERROR(ENOMEM);
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    ret = ff_set_common_formats(ctx, formats);
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    if (ret < 0)
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        return ret;
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    formats = ff_all_samplerates();
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    if (!formats)
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        return AVERROR(ENOMEM);
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    return ff_set_common_samplerates(ctx, formats);
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}
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static int activate(AVFilterContext *ctx)
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{
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    AudioMultiplyContext *s = ctx->priv;
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    int i, ret, status;
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    int nb_samples;
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    int64_t pts;
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    FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx);
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    nb_samples = FFMIN(ff_inlink_queued_samples(ctx->inputs[0]),
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                       ff_inlink_queued_samples(ctx->inputs[1]));
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    for (i = 0; i < ctx->nb_inputs && nb_samples > 0; i++) {
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        if (s->frames[i])
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            continue;
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        if (ff_inlink_check_available_samples(ctx->inputs[i], nb_samples) > 0) {
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            ret = ff_inlink_consume_samples(ctx->inputs[i], nb_samples, nb_samples, &s->frames[i]);
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            if (ret < 0)
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                return ret;
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        }
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    }
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    if (s->frames[0] && s->frames[1]) {
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        AVFrame *out;
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        int plane_samples;
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        if (av_sample_fmt_is_planar(ctx->inputs[0]->format))
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            plane_samples = FFALIGN(s->frames[0]->nb_samples, s->samples_align);
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        else
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            plane_samples = FFALIGN(s->frames[0]->nb_samples * s->channels, s->samples_align);
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        out = ff_get_audio_buffer(ctx->outputs[0], s->frames[0]->nb_samples);
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        if (!out)
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            return AVERROR(ENOMEM);
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        out->pts = s->frames[0]->pts;
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        if (av_get_packed_sample_fmt(ctx->inputs[0]->format) == AV_SAMPLE_FMT_FLT) {
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            for (i = 0; i < s->planes; i++) {
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                s->fdsp->vector_fmul((float *)out->extended_data[i],
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                                     (const float *)s->frames[0]->extended_data[i],
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                                     (const float *)s->frames[1]->extended_data[i],
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                                     plane_samples);
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            }
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        } else {
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            for (i = 0; i < s->planes; i++) {
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                s->fdsp->vector_dmul((double *)out->extended_data[i],
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                                     (const double *)s->frames[0]->extended_data[i],
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                                     (const double *)s->frames[1]->extended_data[i],
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                                     plane_samples);
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            }
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        }
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        emms_c();
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        av_frame_free(&s->frames[0]);
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        av_frame_free(&s->frames[1]);
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        ret = ff_filter_frame(ctx->outputs[0], out);
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        if (ret < 0)
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            return ret;
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    }
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    if (!nb_samples) {
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        for (i = 0; i < 2; i++) {
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            if (ff_inlink_acknowledge_status(ctx->inputs[i], &status, &pts)) {
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                ff_outlink_set_status(ctx->outputs[0], status, pts);
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                return 0;
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            }
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        }
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    }
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    if (ff_outlink_frame_wanted(ctx->outputs[0])) {
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        for (i = 0; i < 2; i++) {
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            if (ff_inlink_queued_samples(ctx->inputs[i]) > 0)
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                continue;
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            ff_inlink_request_frame(ctx->inputs[i]);
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            return 0;
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        }
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    }
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    return 0;
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}
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static int config_output(AVFilterLink *outlink)
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{
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    AVFilterContext *ctx = outlink->src;
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    AudioMultiplyContext *s = ctx->priv;
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    AVFilterLink *inlink = ctx->inputs[0];
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    s->channels = inlink->channels;
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    s->planes = av_sample_fmt_is_planar(inlink->format) ? inlink->channels : 1;
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    s->samples_align = 16;
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    return 0;
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}
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static av_cold int init(AVFilterContext *ctx)
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{
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    AudioMultiplyContext *s = ctx->priv;
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    s->fdsp = avpriv_float_dsp_alloc(0);
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    if (!s->fdsp)
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        return AVERROR(ENOMEM);
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    return 0;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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    AudioMultiplyContext *s = ctx->priv;
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    av_freep(&s->fdsp);
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}
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static const AVFilterPad inputs[] = {
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    {
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        .name = "multiply0",
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        .type = AVMEDIA_TYPE_AUDIO,
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    },
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    {
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        .name = "multiply1",
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        .type = AVMEDIA_TYPE_AUDIO,
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    },
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    { NULL }
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};
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static const AVFilterPad outputs[] = {
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    {
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        .name         = "default",
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        .type         = AVMEDIA_TYPE_AUDIO,
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        .config_props = config_output,
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    },
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    { NULL }
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};
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AVFilter ff_af_amultiply = {
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    .name           = "amultiply",
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    .description    = NULL_IF_CONFIG_SMALL("Multiply two audio streams."),
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    .priv_size      = sizeof(AudioMultiplyContext),
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    .init           = init,
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    .uninit         = uninit,
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    .activate       = activate,
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    .query_formats  = query_formats,
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    .inputs         = inputs,
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    .outputs        = outputs,
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};