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/* |
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* Copyright (c) 2016 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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/** |
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* @file |
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* SpectrumSynth filter |
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* @todo support float pixel format |
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*/ |
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#include "libavutil/mem.h" |
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#include "libavutil/tx.h" |
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#include "libavutil/avassert.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/ffmath.h" |
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#include "libavutil/opt.h" |
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#include "avfilter.h" |
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#include "formats.h" |
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#include "audio.h" |
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#include "filters.h" |
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#include "internal.h" |
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#include "window_func.h" |
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enum MagnitudeScale { LINEAR, LOG, NB_SCALES }; |
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enum SlideMode { REPLACE, SCROLL, FULLFRAME, RSCROLL, NB_SLIDES }; |
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enum Orientation { VERTICAL, HORIZONTAL, NB_ORIENTATIONS }; |
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typedef struct SpectrumSynthContext { |
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const AVClass *class; |
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int sample_rate; |
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int channels; |
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int scale; |
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int sliding; |
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int win_func; |
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float overlap; |
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int orientation; |
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AVFrame *magnitude, *phase; |
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AVTXContext *fft; ///< Fast Fourier Transform context |
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av_tx_fn tx_fn; |
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AVComplexFloat **fft_in; ///< bins holder for each (displayed) channels |
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AVComplexFloat **fft_out; ///< bins holder for each (displayed) channels |
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int win_size; |
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int size; |
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int nb_freq; |
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int hop_size; |
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int start, end; |
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int xpos; |
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int xend; |
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int64_t pts; |
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float factor; |
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AVFrame *buffer; |
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float *window_func_lut; ///< Window function LUT |
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} SpectrumSynthContext; |
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#define OFFSET(x) offsetof(SpectrumSynthContext, x) |
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#define A AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_AUDIO_PARAM |
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#define V AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
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static const AVOption spectrumsynth_options[] = { |
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{ "sample_rate", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 44100}, 15, INT_MAX, A }, |
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{ "channels", "set channels", OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = 1}, 1, 8, A }, |
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{ "scale", "set input amplitude scale", OFFSET(scale), AV_OPT_TYPE_INT, {.i64 = LOG}, 0, NB_SCALES-1, V, .unit = "scale" }, |
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{ "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=LINEAR}, 0, 0, V, .unit = "scale" }, |
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{ "log", "logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=LOG}, 0, 0, V, .unit = "scale" }, |
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{ "slide", "set input sliding mode", OFFSET(sliding), AV_OPT_TYPE_INT, {.i64 = FULLFRAME}, 0, NB_SLIDES-1, V, .unit = "slide" }, |
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{ "replace", "consume old columns with new", 0, AV_OPT_TYPE_CONST, {.i64=REPLACE}, 0, 0, V, .unit = "slide" }, |
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{ "scroll", "consume only most right column", 0, AV_OPT_TYPE_CONST, {.i64=SCROLL}, 0, 0, V, .unit = "slide" }, |
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{ "fullframe", "consume full frames", 0, AV_OPT_TYPE_CONST, {.i64=FULLFRAME}, 0, 0, V, .unit = "slide" }, |
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{ "rscroll", "consume only most left column", 0, AV_OPT_TYPE_CONST, {.i64=RSCROLL}, 0, 0, V, .unit = "slide" }, |
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WIN_FUNC_OPTION("win_func", OFFSET(win_func), A, 0), |
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{ "overlap", "set window overlap", OFFSET(overlap), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 1, A }, |
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{ "orientation", "set orientation", OFFSET(orientation), AV_OPT_TYPE_INT, {.i64=VERTICAL}, 0, NB_ORIENTATIONS-1, V, .unit = "orientation" }, |
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{ "vertical", NULL, 0, AV_OPT_TYPE_CONST, {.i64=VERTICAL}, 0, 0, V, .unit = "orientation" }, |
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{ "horizontal", NULL, 0, AV_OPT_TYPE_CONST, {.i64=HORIZONTAL}, 0, 0, V, .unit = "orientation" }, |
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{ NULL } |
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}; |
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AVFILTER_DEFINE_CLASS(spectrumsynth); |
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static int query_formats(AVFilterContext *ctx) |
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{ |
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SpectrumSynthContext *s = ctx->priv; |
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AVFilterFormats *formats = NULL; |
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AVFilterChannelLayouts *layout = NULL; |
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AVFilterLink *magnitude = ctx->inputs[0]; |
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AVFilterLink *phase = ctx->inputs[1]; |
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AVFilterLink *outlink = ctx->outputs[0]; |
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static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE }; |
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static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16, |
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, |
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AV_PIX_FMT_YUV444P16, AV_PIX_FMT_NONE }; |
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int ret, sample_rates[] = { 48000, -1 }; |
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formats = ff_make_format_list(sample_fmts); |
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if ((ret = ff_formats_ref (formats, &outlink->incfg.formats )) < 0 || |
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(ret = ff_add_channel_layout (&layout, &FF_COUNT2LAYOUT(s->channels))) < 0 || |
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(ret = ff_channel_layouts_ref (layout , &outlink->incfg.channel_layouts)) < 0) |
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return ret; |
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sample_rates[0] = s->sample_rate; |
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formats = ff_make_format_list(sample_rates); |
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if (!formats) |
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return AVERROR(ENOMEM); |
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if ((ret = ff_formats_ref(formats, &outlink->incfg.samplerates)) < 0) |
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return ret; |
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formats = ff_make_format_list(pix_fmts); |
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if (!formats) |
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return AVERROR(ENOMEM); |
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if ((ret = ff_formats_ref(formats, &magnitude->outcfg.formats)) < 0) |
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return ret; |
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formats = ff_make_format_list(pix_fmts); |
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if (!formats) |
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return AVERROR(ENOMEM); |
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if ((ret = ff_formats_ref(formats, &phase->outcfg.formats)) < 0) |
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return ret; |
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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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SpectrumSynthContext *s = ctx->priv; |
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int width = ctx->inputs[0]->w; |
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int height = ctx->inputs[0]->h; |
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AVRational time_base = ctx->inputs[0]->time_base; |
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AVRational frame_rate = ctx->inputs[0]->frame_rate; |
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float factor, overlap, scale; |
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int i, ch, ret; |
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outlink->sample_rate = s->sample_rate; |
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outlink->time_base = (AVRational){1, s->sample_rate}; |
152 |
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153 |
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if (width != ctx->inputs[1]->w || |
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height != ctx->inputs[1]->h) { |
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av_log(ctx, AV_LOG_ERROR, |
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"Magnitude and Phase sizes differ (%dx%d vs %dx%d).\n", |
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width, height, |
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ctx->inputs[1]->w, ctx->inputs[1]->h); |
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return AVERROR_INVALIDDATA; |
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} else if (av_cmp_q(time_base, ctx->inputs[1]->time_base) != 0) { |
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av_log(ctx, AV_LOG_ERROR, |
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"Magnitude and Phase time bases differ (%d/%d vs %d/%d).\n", |
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time_base.num, time_base.den, |
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ctx->inputs[1]->time_base.num, |
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ctx->inputs[1]->time_base.den); |
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return AVERROR_INVALIDDATA; |
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} else if (av_cmp_q(frame_rate, ctx->inputs[1]->frame_rate) != 0) { |
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av_log(ctx, AV_LOG_ERROR, |
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"Magnitude and Phase framerates differ (%d/%d vs %d/%d).\n", |
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frame_rate.num, frame_rate.den, |
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ctx->inputs[1]->frame_rate.num, |
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ctx->inputs[1]->frame_rate.den); |
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return AVERROR_INVALIDDATA; |
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} |
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s->size = s->orientation == VERTICAL ? height / s->channels : width / s->channels; |
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s->xend = s->orientation == VERTICAL ? width : height; |
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179 |
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s->win_size = s->size * 2; |
180 |
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s->nb_freq = s->size; |
181 |
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182 |
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ret = av_tx_init(&s->fft, &s->tx_fn, AV_TX_FLOAT_FFT, 1, s->win_size, &scale, 0); |
183 |
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if (ret < 0) { |
184 |
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av_log(ctx, AV_LOG_ERROR, "Unable to create FFT context. " |
185 |
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"The window size might be too high.\n"); |
186 |
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return ret; |
187 |
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} |
188 |
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189 |
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s->fft_in = av_calloc(s->channels, sizeof(*s->fft_in)); |
190 |
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if (!s->fft_in) |
191 |
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return AVERROR(ENOMEM); |
192 |
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s->fft_out = av_calloc(s->channels, sizeof(*s->fft_out)); |
193 |
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if (!s->fft_out) |
194 |
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return AVERROR(ENOMEM); |
195 |
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196 |
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for (ch = 0; ch < s->channels; ch++) { |
197 |
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s->fft_in[ch] = av_calloc(FFALIGN(s->win_size, av_cpu_max_align()), sizeof(**s->fft_in)); |
198 |
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if (!s->fft_in[ch]) |
199 |
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return AVERROR(ENOMEM); |
200 |
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201 |
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s->fft_out[ch] = av_calloc(FFALIGN(s->win_size, av_cpu_max_align()), sizeof(**s->fft_out)); |
202 |
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if (!s->fft_out[ch]) |
203 |
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return AVERROR(ENOMEM); |
204 |
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} |
205 |
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206 |
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s->buffer = ff_get_audio_buffer(outlink, s->win_size * 2); |
207 |
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if (!s->buffer) |
208 |
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return AVERROR(ENOMEM); |
209 |
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210 |
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/* pre-calc windowing function */ |
211 |
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s->window_func_lut = av_realloc_f(s->window_func_lut, s->win_size, |
212 |
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sizeof(*s->window_func_lut)); |
213 |
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if (!s->window_func_lut) |
214 |
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return AVERROR(ENOMEM); |
215 |
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generate_window_func(s->window_func_lut, s->win_size, s->win_func, &overlap); |
216 |
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if (s->overlap == 1) |
217 |
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s->overlap = overlap; |
218 |
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s->hop_size = (1 - s->overlap) * s->win_size; |
219 |
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for (factor = 0, i = 0; i < s->win_size; i++) { |
220 |
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factor += s->window_func_lut[i] * s->window_func_lut[i]; |
221 |
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} |
222 |
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s->factor = (factor / s->win_size) / FFMAX(1 / (1 - s->overlap) - 1, 1); |
223 |
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224 |
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return 0; |
225 |
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} |
226 |
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227 |
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✗ |
static void read16_fft_bin(SpectrumSynthContext *s, |
228 |
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int x, int y, int f, int ch) |
229 |
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{ |
230 |
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✗ |
const int m_linesize = s->magnitude->linesize[0]; |
231 |
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✗ |
const int p_linesize = s->phase->linesize[0]; |
232 |
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✗ |
const uint16_t *m = (uint16_t *)(s->magnitude->data[0] + y * m_linesize); |
233 |
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const uint16_t *p = (uint16_t *)(s->phase->data[0] + y * p_linesize); |
234 |
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float magnitude, phase; |
235 |
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|
236 |
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✗ |
switch (s->scale) { |
237 |
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✗ |
case LINEAR: |
238 |
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✗ |
magnitude = m[x] / (double)UINT16_MAX; |
239 |
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✗ |
break; |
240 |
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✗ |
case LOG: |
241 |
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✗ |
magnitude = ff_exp10(((m[x] / (double)UINT16_MAX) - 1.) * 6.); |
242 |
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✗ |
break; |
243 |
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✗ |
default: |
244 |
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✗ |
av_assert0(0); |
245 |
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} |
246 |
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✗ |
phase = ((p[x] / (double)UINT16_MAX) * 2. - 1.) * M_PI; |
247 |
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|
248 |
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✗ |
s->fft_in[ch][f].re = magnitude * cos(phase); |
249 |
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✗ |
s->fft_in[ch][f].im = magnitude * sin(phase); |
250 |
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✗ |
} |
251 |
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|
252 |
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✗ |
static void read8_fft_bin(SpectrumSynthContext *s, |
253 |
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int x, int y, int f, int ch) |
254 |
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{ |
255 |
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✗ |
const int m_linesize = s->magnitude->linesize[0]; |
256 |
|
✗ |
const int p_linesize = s->phase->linesize[0]; |
257 |
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✗ |
const uint8_t *m = (uint8_t *)(s->magnitude->data[0] + y * m_linesize); |
258 |
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✗ |
const uint8_t *p = (uint8_t *)(s->phase->data[0] + y * p_linesize); |
259 |
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float magnitude, phase; |
260 |
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|
261 |
|
✗ |
switch (s->scale) { |
262 |
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✗ |
case LINEAR: |
263 |
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✗ |
magnitude = m[x] / (double)UINT8_MAX; |
264 |
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✗ |
break; |
265 |
|
✗ |
case LOG: |
266 |
|
✗ |
magnitude = ff_exp10(((m[x] / (double)UINT8_MAX) - 1.) * 6.); |
267 |
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✗ |
break; |
268 |
|
✗ |
default: |
269 |
|
✗ |
av_assert0(0); |
270 |
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} |
271 |
|
✗ |
phase = ((p[x] / (double)UINT8_MAX) * 2. - 1.) * M_PI; |
272 |
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|
273 |
|
✗ |
s->fft_in[ch][f].re = magnitude * cos(phase); |
274 |
|
✗ |
s->fft_in[ch][f].im = magnitude * sin(phase); |
275 |
|
✗ |
} |
276 |
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|
277 |
|
✗ |
static void read_fft_data(AVFilterContext *ctx, int x, int h, int ch) |
278 |
|
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{ |
279 |
|
✗ |
SpectrumSynthContext *s = ctx->priv; |
280 |
|
✗ |
AVFilterLink *inlink = ctx->inputs[0]; |
281 |
|
✗ |
int start = h * (s->channels - ch) - 1; |
282 |
|
✗ |
int end = h * (s->channels - ch - 1); |
283 |
|
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int y, f; |
284 |
|
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|
285 |
|
✗ |
switch (s->orientation) { |
286 |
|
✗ |
case VERTICAL: |
287 |
|
✗ |
switch (inlink->format) { |
288 |
|
✗ |
case AV_PIX_FMT_YUV444P16: |
289 |
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case AV_PIX_FMT_GRAY16: |
290 |
|
✗ |
for (y = start, f = 0; y >= end; y--, f++) { |
291 |
|
✗ |
read16_fft_bin(s, x, y, f, ch); |
292 |
|
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} |
293 |
|
✗ |
break; |
294 |
|
✗ |
case AV_PIX_FMT_YUVJ444P: |
295 |
|
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case AV_PIX_FMT_YUV444P: |
296 |
|
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case AV_PIX_FMT_GRAY8: |
297 |
|
✗ |
for (y = start, f = 0; y >= end; y--, f++) { |
298 |
|
✗ |
read8_fft_bin(s, x, y, f, ch); |
299 |
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} |
300 |
|
✗ |
break; |
301 |
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} |
302 |
|
✗ |
break; |
303 |
|
✗ |
case HORIZONTAL: |
304 |
|
✗ |
switch (inlink->format) { |
305 |
|
✗ |
case AV_PIX_FMT_YUV444P16: |
306 |
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case AV_PIX_FMT_GRAY16: |
307 |
|
✗ |
for (y = end, f = 0; y <= start; y++, f++) { |
308 |
|
✗ |
read16_fft_bin(s, y, x, f, ch); |
309 |
|
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} |
310 |
|
✗ |
break; |
311 |
|
✗ |
case AV_PIX_FMT_YUVJ444P: |
312 |
|
|
case AV_PIX_FMT_YUV444P: |
313 |
|
|
case AV_PIX_FMT_GRAY8: |
314 |
|
✗ |
for (y = end, f = 0; y <= start; y++, f++) { |
315 |
|
✗ |
read8_fft_bin(s, y, x, f, ch); |
316 |
|
|
} |
317 |
|
✗ |
break; |
318 |
|
|
} |
319 |
|
✗ |
break; |
320 |
|
|
} |
321 |
|
✗ |
} |
322 |
|
|
|
323 |
|
✗ |
static void synth_window(AVFilterContext *ctx, int x) |
324 |
|
|
{ |
325 |
|
✗ |
SpectrumSynthContext *s = ctx->priv; |
326 |
|
✗ |
const int h = s->size; |
327 |
|
✗ |
int nb = s->win_size; |
328 |
|
|
int y, f, ch; |
329 |
|
|
|
330 |
|
✗ |
for (ch = 0; ch < s->channels; ch++) { |
331 |
|
✗ |
read_fft_data(ctx, x, h, ch); |
332 |
|
|
|
333 |
|
✗ |
for (y = h; y <= s->nb_freq; y++) { |
334 |
|
✗ |
s->fft_in[ch][y].re = 0; |
335 |
|
✗ |
s->fft_in[ch][y].im = 0; |
336 |
|
|
} |
337 |
|
|
|
338 |
|
✗ |
for (y = s->nb_freq + 1, f = s->nb_freq - 1; y < nb; y++, f--) { |
339 |
|
✗ |
s->fft_in[ch][y].re = s->fft_in[ch][f].re; |
340 |
|
✗ |
s->fft_in[ch][y].im = -s->fft_in[ch][f].im; |
341 |
|
|
} |
342 |
|
|
|
343 |
|
✗ |
s->tx_fn(s->fft, s->fft_out[ch], s->fft_in[ch], sizeof(AVComplexFloat)); |
344 |
|
|
} |
345 |
|
✗ |
} |
346 |
|
|
|
347 |
|
✗ |
static int try_push_frame(AVFilterContext *ctx, int x) |
348 |
|
|
{ |
349 |
|
✗ |
SpectrumSynthContext *s = ctx->priv; |
350 |
|
✗ |
AVFilterLink *outlink = ctx->outputs[0]; |
351 |
|
✗ |
const float factor = s->factor; |
352 |
|
|
int ch, n, i, ret; |
353 |
|
|
int start, end; |
354 |
|
|
AVFrame *out; |
355 |
|
|
|
356 |
|
✗ |
synth_window(ctx, x); |
357 |
|
|
|
358 |
|
✗ |
for (ch = 0; ch < s->channels; ch++) { |
359 |
|
✗ |
float *buf = (float *)s->buffer->extended_data[ch]; |
360 |
|
|
int j, k; |
361 |
|
|
|
362 |
|
✗ |
start = s->start; |
363 |
|
✗ |
end = s->end; |
364 |
|
✗ |
k = end; |
365 |
|
✗ |
for (i = 0, j = start; j < k && i < s->win_size; i++, j++) { |
366 |
|
✗ |
buf[j] += s->fft_out[ch][i].re; |
367 |
|
|
} |
368 |
|
|
|
369 |
|
✗ |
for (; i < s->win_size; i++, j++) { |
370 |
|
✗ |
buf[j] = s->fft_out[ch][i].re; |
371 |
|
|
} |
372 |
|
|
|
373 |
|
✗ |
start += s->hop_size; |
374 |
|
✗ |
end = j; |
375 |
|
|
|
376 |
|
✗ |
if (start >= s->win_size) { |
377 |
|
✗ |
start -= s->win_size; |
378 |
|
✗ |
end -= s->win_size; |
379 |
|
|
|
380 |
|
✗ |
if (ch == s->channels - 1) { |
381 |
|
|
float *dst; |
382 |
|
|
int c; |
383 |
|
|
|
384 |
|
✗ |
out = ff_get_audio_buffer(outlink, s->win_size); |
385 |
|
✗ |
if (!out) { |
386 |
|
✗ |
av_frame_free(&s->magnitude); |
387 |
|
✗ |
av_frame_free(&s->phase); |
388 |
|
✗ |
return AVERROR(ENOMEM); |
389 |
|
|
} |
390 |
|
|
|
391 |
|
✗ |
out->pts = s->pts; |
392 |
|
✗ |
s->pts += s->win_size; |
393 |
|
✗ |
for (c = 0; c < s->channels; c++) { |
394 |
|
✗ |
dst = (float *)out->extended_data[c]; |
395 |
|
✗ |
buf = (float *)s->buffer->extended_data[c]; |
396 |
|
|
|
397 |
|
✗ |
for (n = 0; n < s->win_size; n++) { |
398 |
|
✗ |
dst[n] = buf[n] * factor; |
399 |
|
|
} |
400 |
|
✗ |
memmove(buf, buf + s->win_size, s->win_size * 4); |
401 |
|
|
} |
402 |
|
|
|
403 |
|
✗ |
ret = ff_filter_frame(outlink, out); |
404 |
|
✗ |
if (ret < 0) |
405 |
|
✗ |
return ret; |
406 |
|
|
} |
407 |
|
|
} |
408 |
|
|
} |
409 |
|
|
|
410 |
|
✗ |
s->start = start; |
411 |
|
✗ |
s->end = end; |
412 |
|
|
|
413 |
|
✗ |
return 0; |
414 |
|
|
} |
415 |
|
|
|
416 |
|
✗ |
static int try_push_frames(AVFilterContext *ctx) |
417 |
|
|
{ |
418 |
|
✗ |
SpectrumSynthContext *s = ctx->priv; |
419 |
|
|
int ret, x; |
420 |
|
|
|
421 |
|
✗ |
if (!(s->magnitude && s->phase)) |
422 |
|
✗ |
return 0; |
423 |
|
|
|
424 |
|
✗ |
switch (s->sliding) { |
425 |
|
✗ |
case REPLACE: |
426 |
|
✗ |
ret = try_push_frame(ctx, s->xpos); |
427 |
|
✗ |
s->xpos++; |
428 |
|
✗ |
if (s->xpos >= s->xend) |
429 |
|
✗ |
s->xpos = 0; |
430 |
|
✗ |
break; |
431 |
|
✗ |
case SCROLL: |
432 |
|
✗ |
s->xpos = s->xend - 1; |
433 |
|
✗ |
ret = try_push_frame(ctx, s->xpos); |
434 |
|
✗ |
break; |
435 |
|
✗ |
case RSCROLL: |
436 |
|
✗ |
s->xpos = 0; |
437 |
|
✗ |
ret = try_push_frame(ctx, s->xpos); |
438 |
|
✗ |
break; |
439 |
|
✗ |
case FULLFRAME: |
440 |
|
✗ |
for (x = 0; x < s->xend; x++) { |
441 |
|
✗ |
ret = try_push_frame(ctx, x); |
442 |
|
✗ |
if (ret < 0) |
443 |
|
✗ |
break; |
444 |
|
|
} |
445 |
|
✗ |
break; |
446 |
|
✗ |
default: |
447 |
|
✗ |
av_assert0(0); |
448 |
|
|
} |
449 |
|
|
|
450 |
|
✗ |
av_frame_free(&s->magnitude); |
451 |
|
✗ |
av_frame_free(&s->phase); |
452 |
|
✗ |
return ret; |
453 |
|
|
} |
454 |
|
|
|
455 |
|
✗ |
static int activate(AVFilterContext *ctx) |
456 |
|
|
{ |
457 |
|
✗ |
SpectrumSynthContext *s = ctx->priv; |
458 |
|
✗ |
AVFrame **staging[2] = { &s->magnitude, &s->phase }; |
459 |
|
|
int64_t pts; |
460 |
|
|
int i, ret; |
461 |
|
|
|
462 |
|
✗ |
FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx); |
463 |
|
|
|
464 |
|
✗ |
for (i = 0; i < 2; i++) { |
465 |
|
✗ |
if (*staging[i]) |
466 |
|
✗ |
continue; |
467 |
|
✗ |
ret = ff_inlink_consume_frame(ctx->inputs[i], staging[i]); |
468 |
|
✗ |
if (ret < 0) |
469 |
|
✗ |
return ret; |
470 |
|
✗ |
if (ret) { |
471 |
|
✗ |
ff_filter_set_ready(ctx, 10); |
472 |
|
✗ |
return try_push_frames(ctx); |
473 |
|
|
} |
474 |
|
|
} |
475 |
|
|
|
476 |
|
✗ |
for (i = 0; i < 2; i++) { |
477 |
|
✗ |
if (ff_inlink_acknowledge_status(ctx->inputs[i], &ret, &pts)) { |
478 |
|
✗ |
ff_outlink_set_status(ctx->outputs[0], ret, pts); |
479 |
|
✗ |
ff_inlink_set_status(ctx->inputs[1 - i], ret); |
480 |
|
✗ |
return 0; |
481 |
|
|
} |
482 |
|
|
} |
483 |
|
|
|
484 |
|
✗ |
if (ff_outlink_frame_wanted(ctx->outputs[0])) { |
485 |
|
✗ |
for (i = 0; i < 2; i++) { |
486 |
|
✗ |
if (!*staging[i]) |
487 |
|
✗ |
ff_inlink_request_frame(ctx->inputs[i]); |
488 |
|
|
} |
489 |
|
|
} |
490 |
|
|
|
491 |
|
✗ |
return FFERROR_NOT_READY; |
492 |
|
|
} |
493 |
|
|
|
494 |
|
✗ |
static av_cold void uninit(AVFilterContext *ctx) |
495 |
|
|
{ |
496 |
|
✗ |
SpectrumSynthContext *s = ctx->priv; |
497 |
|
|
int i; |
498 |
|
|
|
499 |
|
✗ |
av_frame_free(&s->magnitude); |
500 |
|
✗ |
av_frame_free(&s->phase); |
501 |
|
✗ |
av_frame_free(&s->buffer); |
502 |
|
|
|
503 |
|
✗ |
av_tx_uninit(&s->fft); |
504 |
|
|
|
505 |
|
✗ |
if (s->fft_in) { |
506 |
|
✗ |
for (i = 0; i < s->channels; i++) |
507 |
|
✗ |
av_freep(&s->fft_in[i]); |
508 |
|
|
} |
509 |
|
✗ |
if (s->fft_out) { |
510 |
|
✗ |
for (i = 0; i < s->channels; i++) |
511 |
|
✗ |
av_freep(&s->fft_out[i]); |
512 |
|
|
} |
513 |
|
✗ |
av_freep(&s->fft_in); |
514 |
|
✗ |
av_freep(&s->fft_out); |
515 |
|
✗ |
av_freep(&s->window_func_lut); |
516 |
|
✗ |
} |
517 |
|
|
|
518 |
|
|
static const AVFilterPad spectrumsynth_inputs[] = { |
519 |
|
|
{ |
520 |
|
|
.name = "magnitude", |
521 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
522 |
|
|
}, |
523 |
|
|
{ |
524 |
|
|
.name = "phase", |
525 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
526 |
|
|
}, |
527 |
|
|
}; |
528 |
|
|
|
529 |
|
|
static const AVFilterPad spectrumsynth_outputs[] = { |
530 |
|
|
{ |
531 |
|
|
.name = "default", |
532 |
|
|
.type = AVMEDIA_TYPE_AUDIO, |
533 |
|
|
.config_props = config_output, |
534 |
|
|
}, |
535 |
|
|
}; |
536 |
|
|
|
537 |
|
|
const AVFilter ff_vaf_spectrumsynth = { |
538 |
|
|
.name = "spectrumsynth", |
539 |
|
|
.description = NULL_IF_CONFIG_SMALL("Convert input spectrum videos to audio output."), |
540 |
|
|
.uninit = uninit, |
541 |
|
|
.activate = activate, |
542 |
|
|
.priv_size = sizeof(SpectrumSynthContext), |
543 |
|
|
FILTER_INPUTS(spectrumsynth_inputs), |
544 |
|
|
FILTER_OUTPUTS(spectrumsynth_outputs), |
545 |
|
|
FILTER_QUERY_FUNC(query_formats), |
546 |
|
|
.priv_class = &spectrumsynth_class, |
547 |
|
|
}; |
548 |
|
|
|