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/* |
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* Copyright (c) 2017 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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* An arbitrary audio FIR filter |
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*/ |
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#include <float.h> |
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#include "libavutil/avassert.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/mem.h" |
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#include "libavutil/tx.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/channel_layout.h" |
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#include "libavutil/float_dsp.h" |
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#include "libavutil/frame.h" |
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#include "libavutil/log.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/rational.h" |
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#include "audio.h" |
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#include "avfilter.h" |
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#include "filters.h" |
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#include "formats.h" |
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#include "af_afirdsp.h" |
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#define MAX_IR_STREAMS 32 |
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typedef struct AudioFIRSegment { |
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int nb_partitions; |
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int part_size; |
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int block_size; |
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int fft_length; |
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int coeff_size; |
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int input_size; |
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int input_offset; |
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57 |
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int *output_offset; |
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int *part_index; |
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AVFrame *sumin; |
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AVFrame *sumout; |
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AVFrame *blockout; |
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AVFrame *tempin; |
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AVFrame *tempout; |
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AVFrame *buffer; |
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AVFrame *coeff; |
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AVFrame *input; |
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AVFrame *output; |
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AVTXContext **ctx, **tx, **itx; |
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av_tx_fn ctx_fn, tx_fn, itx_fn; |
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} AudioFIRSegment; |
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typedef struct AudioFIRContext { |
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const AVClass *class; |
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float wet_gain; |
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float dry_gain; |
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float length; |
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int gtype; |
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float ir_norm; |
82 |
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float ir_link; |
83 |
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float ir_gain; |
84 |
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int ir_format; |
85 |
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int ir_load; |
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float max_ir_len; |
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int response; |
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int w, h; |
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AVRational frame_rate; |
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int ir_channel; |
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int minp; |
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int maxp; |
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int nb_irs; |
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int prev_selir; |
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int selir; |
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int precision; |
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int format; |
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int eof_coeffs[MAX_IR_STREAMS]; |
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int have_coeffs[MAX_IR_STREAMS]; |
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int nb_taps[MAX_IR_STREAMS]; |
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int nb_segments[MAX_IR_STREAMS]; |
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int max_offset[MAX_IR_STREAMS]; |
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int nb_channels; |
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int one2many; |
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int prev_is_disabled; |
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int *loading; |
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double *ch_gain; |
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AudioFIRSegment seg[MAX_IR_STREAMS][1024]; |
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AVFrame *in; |
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AVFrame *xfade[2]; |
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AVFrame *fadein[2]; |
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AVFrame *ir[MAX_IR_STREAMS]; |
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AVFrame *norm_ir[MAX_IR_STREAMS]; |
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int min_part_size; |
118 |
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int max_part_size; |
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int64_t pts; |
120 |
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AudioFIRDSPContext afirdsp; |
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AVFloatDSPContext *fdsp; |
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} AudioFIRContext; |
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#define DEPTH 32 |
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#include "afir_template.c" |
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#undef DEPTH |
129 |
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#define DEPTH 64 |
130 |
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#include "afir_template.c" |
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132 |
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static int fir_channel(AVFilterContext *ctx, AVFrame *out, int ch) |
133 |
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{ |
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AudioFIRContext *s = ctx->priv; |
135 |
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const int min_part_size = s->min_part_size; |
136 |
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const int prev_selir = s->prev_selir; |
137 |
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const int selir = s->selir; |
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for (int offset = 0; offset < out->nb_samples; offset += min_part_size) { |
140 |
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switch (s->format) { |
141 |
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case AV_SAMPLE_FMT_FLTP: |
142 |
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fir_quantums_float(ctx, s, out, min_part_size, ch, offset, prev_selir, selir); |
143 |
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break; |
144 |
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case AV_SAMPLE_FMT_DBLP: |
145 |
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fir_quantums_double(ctx, s, out, min_part_size, ch, offset, prev_selir, selir); |
146 |
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break; |
147 |
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} |
148 |
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149 |
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if (selir != prev_selir && s->loading[ch] != 0) |
150 |
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s->loading[ch] += min_part_size; |
151 |
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} |
152 |
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153 |
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return 0; |
154 |
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} |
155 |
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156 |
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static int fir_channels(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
157 |
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{ |
158 |
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AVFrame *out = arg; |
159 |
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const int start = (out->ch_layout.nb_channels * jobnr) / nb_jobs; |
160 |
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const int end = (out->ch_layout.nb_channels * (jobnr+1)) / nb_jobs; |
161 |
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162 |
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for (int ch = start; ch < end; ch++) |
163 |
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fir_channel(ctx, out, ch); |
164 |
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165 |
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return 0; |
166 |
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} |
167 |
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168 |
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static int fir_frame(AudioFIRContext *s, AVFrame *in, AVFilterLink *outlink) |
169 |
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{ |
170 |
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AVFilterContext *ctx = outlink->src; |
171 |
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AVFrame *out; |
172 |
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173 |
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out = ff_get_audio_buffer(outlink, in->nb_samples); |
174 |
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if (!out) { |
175 |
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av_frame_free(&in); |
176 |
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return AVERROR(ENOMEM); |
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} |
178 |
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av_frame_copy_props(out, in); |
179 |
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out->pts = s->pts = in->pts; |
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181 |
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s->in = in; |
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ff_filter_execute(ctx, fir_channels, out, NULL, |
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FFMIN(outlink->ch_layout.nb_channels, ff_filter_get_nb_threads(ctx))); |
184 |
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s->prev_is_disabled = ctx->is_disabled; |
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186 |
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av_frame_free(&in); |
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s->in = NULL; |
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189 |
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return ff_filter_frame(outlink, out); |
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} |
191 |
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192 |
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static int init_segment(AVFilterContext *ctx, AudioFIRSegment *seg, int selir, |
193 |
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int offset, int nb_partitions, int part_size, int index) |
194 |
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{ |
195 |
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AudioFIRContext *s = ctx->priv; |
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const size_t cpu_align = av_cpu_max_align(); |
197 |
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union { double d; float f; } cscale, scale, iscale; |
198 |
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enum AVTXType tx_type; |
199 |
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int ret; |
200 |
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201 |
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seg->tx = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*seg->tx)); |
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seg->ctx = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*seg->ctx)); |
203 |
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seg->itx = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*seg->itx)); |
204 |
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if (!seg->tx || !seg->ctx || !seg->itx) |
205 |
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return AVERROR(ENOMEM); |
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207 |
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seg->fft_length = (part_size + 1) * 2; |
208 |
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seg->part_size = part_size; |
209 |
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seg->coeff_size = FFALIGN(seg->part_size + 1, cpu_align); |
210 |
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seg->block_size = FFMAX(seg->coeff_size * 2, FFALIGN(seg->fft_length, cpu_align)); |
211 |
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seg->nb_partitions = nb_partitions; |
212 |
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seg->input_size = offset + s->min_part_size; |
213 |
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seg->input_offset = offset; |
214 |
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215 |
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seg->part_index = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*seg->part_index)); |
216 |
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seg->output_offset = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*seg->output_offset)); |
217 |
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if (!seg->part_index || !seg->output_offset) |
218 |
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return AVERROR(ENOMEM); |
219 |
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220 |
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✗ |
switch (s->format) { |
221 |
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case AV_SAMPLE_FMT_FLTP: |
222 |
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✗ |
cscale.f = 1.f; |
223 |
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✗ |
scale.f = 1.f / sqrtf(2.f * part_size); |
224 |
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✗ |
iscale.f = 1.f / sqrtf(2.f * part_size); |
225 |
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✗ |
tx_type = AV_TX_FLOAT_RDFT; |
226 |
|
✗ |
break; |
227 |
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✗ |
case AV_SAMPLE_FMT_DBLP: |
228 |
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✗ |
cscale.d = 1.0; |
229 |
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✗ |
scale.d = 1.0 / sqrt(2.0 * part_size); |
230 |
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✗ |
iscale.d = 1.0 / sqrt(2.0 * part_size); |
231 |
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tx_type = AV_TX_DOUBLE_RDFT; |
232 |
|
✗ |
break; |
233 |
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✗ |
default: |
234 |
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av_assert1(0); |
235 |
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} |
236 |
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237 |
|
✗ |
for (int ch = 0; ch < ctx->inputs[0]->ch_layout.nb_channels && part_size >= 1; ch++) { |
238 |
|
✗ |
ret = av_tx_init(&seg->ctx[ch], &seg->ctx_fn, tx_type, |
239 |
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0, 2 * part_size, &cscale, 0); |
240 |
|
✗ |
if (ret < 0) |
241 |
|
✗ |
return ret; |
242 |
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|
243 |
|
✗ |
ret = av_tx_init(&seg->tx[ch], &seg->tx_fn, tx_type, |
244 |
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0, 2 * part_size, &scale, 0); |
245 |
|
✗ |
if (ret < 0) |
246 |
|
✗ |
return ret; |
247 |
|
✗ |
ret = av_tx_init(&seg->itx[ch], &seg->itx_fn, tx_type, |
248 |
|
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1, 2 * part_size, &iscale, 0); |
249 |
|
✗ |
if (ret < 0) |
250 |
|
✗ |
return ret; |
251 |
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} |
252 |
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|
253 |
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✗ |
seg->sumin = ff_get_audio_buffer(ctx->inputs[0], seg->fft_length); |
254 |
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✗ |
seg->sumout = ff_get_audio_buffer(ctx->inputs[0], seg->fft_length); |
255 |
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✗ |
seg->blockout = ff_get_audio_buffer(ctx->inputs[0], seg->block_size * seg->nb_partitions); |
256 |
|
✗ |
seg->tempin = ff_get_audio_buffer(ctx->inputs[0], seg->block_size); |
257 |
|
✗ |
seg->tempout = ff_get_audio_buffer(ctx->inputs[0], seg->block_size); |
258 |
|
✗ |
seg->buffer = ff_get_audio_buffer(ctx->inputs[0], seg->part_size); |
259 |
|
✗ |
seg->input = ff_get_audio_buffer(ctx->inputs[0], seg->input_size); |
260 |
|
✗ |
seg->output = ff_get_audio_buffer(ctx->inputs[0], seg->part_size * 5); |
261 |
|
✗ |
if (!seg->buffer || !seg->sumin || !seg->sumout || !seg->blockout || |
262 |
|
✗ |
!seg->input || !seg->output || !seg->tempin || !seg->tempout) |
263 |
|
✗ |
return AVERROR(ENOMEM); |
264 |
|
|
|
265 |
|
✗ |
return 0; |
266 |
|
|
} |
267 |
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|
268 |
|
✗ |
static void uninit_segment(AVFilterContext *ctx, AudioFIRSegment *seg) |
269 |
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{ |
270 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
271 |
|
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|
272 |
|
✗ |
if (seg->ctx) { |
273 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
274 |
|
✗ |
av_tx_uninit(&seg->ctx[ch]); |
275 |
|
|
} |
276 |
|
✗ |
av_freep(&seg->ctx); |
277 |
|
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|
278 |
|
✗ |
if (seg->tx) { |
279 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
280 |
|
✗ |
av_tx_uninit(&seg->tx[ch]); |
281 |
|
|
} |
282 |
|
✗ |
av_freep(&seg->tx); |
283 |
|
|
|
284 |
|
✗ |
if (seg->itx) { |
285 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
286 |
|
✗ |
av_tx_uninit(&seg->itx[ch]); |
287 |
|
|
} |
288 |
|
✗ |
av_freep(&seg->itx); |
289 |
|
|
|
290 |
|
✗ |
av_freep(&seg->output_offset); |
291 |
|
✗ |
av_freep(&seg->part_index); |
292 |
|
|
|
293 |
|
✗ |
av_frame_free(&seg->tempin); |
294 |
|
✗ |
av_frame_free(&seg->tempout); |
295 |
|
✗ |
av_frame_free(&seg->blockout); |
296 |
|
✗ |
av_frame_free(&seg->sumin); |
297 |
|
✗ |
av_frame_free(&seg->sumout); |
298 |
|
✗ |
av_frame_free(&seg->buffer); |
299 |
|
✗ |
av_frame_free(&seg->input); |
300 |
|
✗ |
av_frame_free(&seg->output); |
301 |
|
✗ |
seg->input_size = 0; |
302 |
|
|
|
303 |
|
✗ |
for (int i = 0; i < MAX_IR_STREAMS; i++) |
304 |
|
✗ |
av_frame_free(&seg->coeff); |
305 |
|
✗ |
} |
306 |
|
|
|
307 |
|
✗ |
static int convert_coeffs(AVFilterContext *ctx, int selir) |
308 |
|
|
{ |
309 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
310 |
|
|
int ret, nb_taps, cur_nb_taps; |
311 |
|
|
|
312 |
|
✗ |
if (!s->nb_taps[selir]) { |
313 |
|
|
int part_size, max_part_size; |
314 |
|
✗ |
int left, offset = 0; |
315 |
|
|
|
316 |
|
✗ |
s->nb_taps[selir] = ff_inlink_queued_samples(ctx->inputs[1 + selir]); |
317 |
|
✗ |
if (s->nb_taps[selir] <= 0) |
318 |
|
✗ |
return AVERROR(EINVAL); |
319 |
|
|
|
320 |
|
✗ |
if (s->minp > s->maxp) |
321 |
|
✗ |
s->maxp = s->minp; |
322 |
|
|
|
323 |
|
✗ |
if (s->nb_segments[selir]) |
324 |
|
✗ |
goto skip; |
325 |
|
|
|
326 |
|
✗ |
left = s->nb_taps[selir]; |
327 |
|
✗ |
part_size = 1 << av_log2(s->minp); |
328 |
|
✗ |
max_part_size = 1 << av_log2(s->maxp); |
329 |
|
|
|
330 |
|
✗ |
for (int i = 0; left > 0; i++) { |
331 |
|
✗ |
int step = (part_size == max_part_size) ? INT_MAX : 1 + (i == 0); |
332 |
|
✗ |
int nb_partitions = FFMIN(step, (left + part_size - 1) / part_size); |
333 |
|
|
|
334 |
|
✗ |
s->nb_segments[selir] = i + 1; |
335 |
|
✗ |
ret = init_segment(ctx, &s->seg[selir][i], selir, offset, nb_partitions, part_size, i); |
336 |
|
✗ |
if (ret < 0) |
337 |
|
✗ |
return ret; |
338 |
|
✗ |
offset += nb_partitions * part_size; |
339 |
|
✗ |
s->max_offset[selir] = offset; |
340 |
|
✗ |
left -= nb_partitions * part_size; |
341 |
|
✗ |
part_size *= 2; |
342 |
|
✗ |
part_size = FFMIN(part_size, max_part_size); |
343 |
|
|
} |
344 |
|
|
} |
345 |
|
|
|
346 |
|
✗ |
skip: |
347 |
|
✗ |
if (!s->ir[selir]) { |
348 |
|
✗ |
ret = ff_inlink_consume_samples(ctx->inputs[1 + selir], s->nb_taps[selir], s->nb_taps[selir], &s->ir[selir]); |
349 |
|
✗ |
if (ret < 0) |
350 |
|
✗ |
return ret; |
351 |
|
✗ |
if (ret == 0) |
352 |
|
✗ |
return AVERROR_BUG; |
353 |
|
|
} |
354 |
|
|
|
355 |
|
✗ |
cur_nb_taps = s->ir[selir]->nb_samples; |
356 |
|
✗ |
nb_taps = cur_nb_taps; |
357 |
|
|
|
358 |
|
✗ |
if (!s->norm_ir[selir] || s->norm_ir[selir]->nb_samples < nb_taps) { |
359 |
|
✗ |
av_frame_free(&s->norm_ir[selir]); |
360 |
|
✗ |
s->norm_ir[selir] = ff_get_audio_buffer(ctx->inputs[0], FFALIGN(nb_taps, 8)); |
361 |
|
✗ |
if (!s->norm_ir[selir]) |
362 |
|
✗ |
return AVERROR(ENOMEM); |
363 |
|
|
} |
364 |
|
|
|
365 |
|
✗ |
av_log(ctx, AV_LOG_DEBUG, "nb_taps: %d\n", cur_nb_taps); |
366 |
|
✗ |
av_log(ctx, AV_LOG_DEBUG, "nb_segments: %d\n", s->nb_segments[selir]); |
367 |
|
|
|
368 |
|
✗ |
switch (s->format) { |
369 |
|
✗ |
case AV_SAMPLE_FMT_FLTP: |
370 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) { |
371 |
|
✗ |
const float *tsrc = (const float *)s->ir[selir]->extended_data[!s->one2many * ch]; |
372 |
|
|
|
373 |
|
✗ |
s->ch_gain[ch] = ir_gain_float(ctx, s, nb_taps, tsrc); |
374 |
|
|
} |
375 |
|
|
|
376 |
|
✗ |
if (s->ir_link) { |
377 |
|
✗ |
float gain = +INFINITY; |
378 |
|
|
|
379 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
380 |
|
✗ |
gain = fminf(gain, s->ch_gain[ch]); |
381 |
|
|
|
382 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
383 |
|
✗ |
s->ch_gain[ch] = gain; |
384 |
|
|
} |
385 |
|
|
|
386 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) { |
387 |
|
✗ |
const float *tsrc = (const float *)s->ir[selir]->extended_data[!s->one2many * ch]; |
388 |
|
✗ |
float *time = (float *)s->norm_ir[selir]->extended_data[ch]; |
389 |
|
|
|
390 |
|
✗ |
memcpy(time, tsrc, sizeof(*time) * nb_taps); |
391 |
|
✗ |
for (int i = FFMAX(1, s->length * nb_taps); i < nb_taps; i++) |
392 |
|
✗ |
time[i] = 0; |
393 |
|
|
|
394 |
|
✗ |
ir_scale_float(ctx, s, nb_taps, ch, time, s->ch_gain[ch]); |
395 |
|
|
|
396 |
|
✗ |
for (int n = 0; n < s->nb_segments[selir]; n++) { |
397 |
|
✗ |
AudioFIRSegment *seg = &s->seg[selir][n]; |
398 |
|
|
|
399 |
|
✗ |
if (!seg->coeff) |
400 |
|
✗ |
seg->coeff = ff_get_audio_buffer(ctx->inputs[0], seg->nb_partitions * seg->coeff_size * 2); |
401 |
|
✗ |
if (!seg->coeff) |
402 |
|
✗ |
return AVERROR(ENOMEM); |
403 |
|
|
|
404 |
|
✗ |
for (int i = 0; i < seg->nb_partitions; i++) |
405 |
|
✗ |
convert_channel_float(ctx, s, ch, seg, i, selir); |
406 |
|
|
} |
407 |
|
|
} |
408 |
|
✗ |
break; |
409 |
|
✗ |
case AV_SAMPLE_FMT_DBLP: |
410 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) { |
411 |
|
✗ |
const double *tsrc = (const double *)s->ir[selir]->extended_data[!s->one2many * ch]; |
412 |
|
|
|
413 |
|
✗ |
s->ch_gain[ch] = ir_gain_double(ctx, s, nb_taps, tsrc); |
414 |
|
|
} |
415 |
|
|
|
416 |
|
✗ |
if (s->ir_link) { |
417 |
|
✗ |
double gain = +INFINITY; |
418 |
|
|
|
419 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
420 |
|
✗ |
gain = fmin(gain, s->ch_gain[ch]); |
421 |
|
|
|
422 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
423 |
|
✗ |
s->ch_gain[ch] = gain; |
424 |
|
|
} |
425 |
|
|
|
426 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) { |
427 |
|
✗ |
const double *tsrc = (const double *)s->ir[selir]->extended_data[!s->one2many * ch]; |
428 |
|
✗ |
double *time = (double *)s->norm_ir[selir]->extended_data[ch]; |
429 |
|
|
|
430 |
|
✗ |
memcpy(time, tsrc, sizeof(*time) * nb_taps); |
431 |
|
✗ |
for (int i = FFMAX(1, s->length * nb_taps); i < nb_taps; i++) |
432 |
|
✗ |
time[i] = 0; |
433 |
|
|
|
434 |
|
✗ |
ir_scale_double(ctx, s, nb_taps, ch, time, s->ch_gain[ch]); |
435 |
|
|
|
436 |
|
✗ |
for (int n = 0; n < s->nb_segments[selir]; n++) { |
437 |
|
✗ |
AudioFIRSegment *seg = &s->seg[selir][n]; |
438 |
|
|
|
439 |
|
✗ |
if (!seg->coeff) |
440 |
|
✗ |
seg->coeff = ff_get_audio_buffer(ctx->inputs[0], seg->nb_partitions * seg->coeff_size * 2); |
441 |
|
✗ |
if (!seg->coeff) |
442 |
|
✗ |
return AVERROR(ENOMEM); |
443 |
|
|
|
444 |
|
✗ |
for (int i = 0; i < seg->nb_partitions; i++) |
445 |
|
✗ |
convert_channel_double(ctx, s, ch, seg, i, selir); |
446 |
|
|
} |
447 |
|
|
} |
448 |
|
✗ |
break; |
449 |
|
|
} |
450 |
|
|
|
451 |
|
✗ |
s->have_coeffs[selir] = 1; |
452 |
|
|
|
453 |
|
✗ |
return 0; |
454 |
|
|
} |
455 |
|
|
|
456 |
|
✗ |
static int check_ir(AVFilterLink *link, int selir) |
457 |
|
|
{ |
458 |
|
✗ |
AVFilterContext *ctx = link->dst; |
459 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
460 |
|
|
int nb_taps, max_nb_taps; |
461 |
|
|
|
462 |
|
✗ |
nb_taps = ff_inlink_queued_samples(link); |
463 |
|
✗ |
max_nb_taps = s->max_ir_len * ctx->outputs[0]->sample_rate; |
464 |
|
✗ |
if (nb_taps > max_nb_taps) { |
465 |
|
✗ |
av_log(ctx, AV_LOG_ERROR, "Too big number of coefficients: %d > %d.\n", nb_taps, max_nb_taps); |
466 |
|
✗ |
return AVERROR(EINVAL); |
467 |
|
|
} |
468 |
|
|
|
469 |
|
✗ |
if (ff_inlink_check_available_samples(link, nb_taps + 1) == 1) |
470 |
|
✗ |
s->eof_coeffs[selir] = 1; |
471 |
|
|
|
472 |
|
✗ |
return 0; |
473 |
|
|
} |
474 |
|
|
|
475 |
|
✗ |
static int activate(AVFilterContext *ctx) |
476 |
|
|
{ |
477 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
478 |
|
✗ |
AVFilterLink *outlink = ctx->outputs[0]; |
479 |
|
|
int ret, status, available, wanted; |
480 |
|
✗ |
AVFrame *in = NULL; |
481 |
|
|
int64_t pts; |
482 |
|
|
|
483 |
|
✗ |
FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx); |
484 |
|
|
|
485 |
|
✗ |
for (int i = 0; i < s->nb_irs; i++) { |
486 |
|
✗ |
const int selir = i; |
487 |
|
|
|
488 |
|
✗ |
if (s->ir_load && selir != s->selir) |
489 |
|
✗ |
continue; |
490 |
|
|
|
491 |
|
✗ |
if (!s->eof_coeffs[selir]) { |
492 |
|
✗ |
ret = check_ir(ctx->inputs[1 + selir], selir); |
493 |
|
✗ |
if (ret < 0) |
494 |
|
✗ |
return ret; |
495 |
|
|
|
496 |
|
✗ |
if (!s->eof_coeffs[selir]) { |
497 |
|
✗ |
if (ff_outlink_frame_wanted(ctx->outputs[0])) |
498 |
|
✗ |
ff_inlink_request_frame(ctx->inputs[1 + selir]); |
499 |
|
✗ |
return 0; |
500 |
|
|
} |
501 |
|
|
} |
502 |
|
|
|
503 |
|
✗ |
if (!s->have_coeffs[selir] && s->eof_coeffs[selir]) { |
504 |
|
✗ |
ret = convert_coeffs(ctx, selir); |
505 |
|
✗ |
if (ret < 0) |
506 |
|
✗ |
return ret; |
507 |
|
|
} |
508 |
|
|
} |
509 |
|
|
|
510 |
|
✗ |
available = ff_inlink_queued_samples(ctx->inputs[0]); |
511 |
|
✗ |
wanted = FFMAX(s->min_part_size, (available / s->min_part_size) * s->min_part_size); |
512 |
|
✗ |
ret = ff_inlink_consume_samples(ctx->inputs[0], wanted, wanted, &in); |
513 |
|
✗ |
if (ret > 0) |
514 |
|
✗ |
ret = fir_frame(s, in, outlink); |
515 |
|
|
|
516 |
|
✗ |
if (s->selir != s->prev_selir && s->loading[0] == 0) |
517 |
|
✗ |
s->prev_selir = s->selir; |
518 |
|
|
|
519 |
|
✗ |
if (ret < 0) |
520 |
|
✗ |
return ret; |
521 |
|
|
|
522 |
|
✗ |
if (ff_inlink_queued_samples(ctx->inputs[0]) >= s->min_part_size) { |
523 |
|
✗ |
ff_filter_set_ready(ctx, 10); |
524 |
|
✗ |
return 0; |
525 |
|
|
} |
526 |
|
|
|
527 |
|
✗ |
if (ff_inlink_acknowledge_status(ctx->inputs[0], &status, &pts)) { |
528 |
|
✗ |
if (status == AVERROR_EOF) { |
529 |
|
✗ |
ff_outlink_set_status(ctx->outputs[0], status, pts); |
530 |
|
✗ |
return 0; |
531 |
|
|
} |
532 |
|
|
} |
533 |
|
|
|
534 |
|
✗ |
if (ff_outlink_frame_wanted(ctx->outputs[0])) { |
535 |
|
✗ |
ff_inlink_request_frame(ctx->inputs[0]); |
536 |
|
✗ |
return 0; |
537 |
|
|
} |
538 |
|
|
|
539 |
|
✗ |
return FFERROR_NOT_READY; |
540 |
|
|
} |
541 |
|
|
|
542 |
|
✗ |
static int query_formats(const AVFilterContext *ctx, |
543 |
|
|
AVFilterFormatsConfig **cfg_in, |
544 |
|
|
AVFilterFormatsConfig **cfg_out) |
545 |
|
|
{ |
546 |
|
✗ |
const AudioFIRContext *s = ctx->priv; |
547 |
|
|
static const enum AVSampleFormat sample_fmts[3][3] = { |
548 |
|
|
{ AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP, AV_SAMPLE_FMT_NONE }, |
549 |
|
|
{ AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE }, |
550 |
|
|
{ AV_SAMPLE_FMT_DBLP, AV_SAMPLE_FMT_NONE }, |
551 |
|
|
}; |
552 |
|
|
int ret; |
553 |
|
|
|
554 |
|
✗ |
if (!s->ir_format) { |
555 |
|
✗ |
AVFilterChannelLayouts *mono = NULL; |
556 |
|
✗ |
AVFilterChannelLayouts *layouts = ff_all_channel_counts(); |
557 |
|
|
|
558 |
|
✗ |
if ((ret = ff_channel_layouts_ref(layouts, &cfg_in[0]->channel_layouts)) < 0) |
559 |
|
✗ |
return ret; |
560 |
|
✗ |
if ((ret = ff_channel_layouts_ref(layouts, &cfg_out[0]->channel_layouts)) < 0) |
561 |
|
✗ |
return ret; |
562 |
|
|
|
563 |
|
✗ |
ret = ff_add_channel_layout(&mono, &(AVChannelLayout)AV_CHANNEL_LAYOUT_MONO); |
564 |
|
✗ |
if (ret) |
565 |
|
✗ |
return ret; |
566 |
|
✗ |
for (int i = 1; i < ctx->nb_inputs; i++) { |
567 |
|
✗ |
if ((ret = ff_channel_layouts_ref(mono, &cfg_in[i]->channel_layouts)) < 0) |
568 |
|
✗ |
return ret; |
569 |
|
|
} |
570 |
|
|
} |
571 |
|
|
|
572 |
|
✗ |
if ((ret = ff_set_common_formats_from_list2(ctx, cfg_in, cfg_out, |
573 |
|
✗ |
sample_fmts[s->precision])) < 0) |
574 |
|
✗ |
return ret; |
575 |
|
|
|
576 |
|
✗ |
return 0; |
577 |
|
|
} |
578 |
|
|
|
579 |
|
✗ |
static int config_output(AVFilterLink *outlink) |
580 |
|
|
{ |
581 |
|
✗ |
AVFilterContext *ctx = outlink->src; |
582 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
583 |
|
|
int ret; |
584 |
|
|
|
585 |
|
✗ |
s->one2many = ctx->inputs[1 + s->selir]->ch_layout.nb_channels == 1; |
586 |
|
✗ |
outlink->sample_rate = ctx->inputs[0]->sample_rate; |
587 |
|
✗ |
outlink->time_base = ctx->inputs[0]->time_base; |
588 |
|
✗ |
if ((ret = av_channel_layout_copy(&outlink->ch_layout, &ctx->inputs[0]->ch_layout)) < 0) |
589 |
|
✗ |
return ret; |
590 |
|
✗ |
outlink->ch_layout.nb_channels = ctx->inputs[0]->ch_layout.nb_channels; |
591 |
|
|
|
592 |
|
✗ |
s->format = outlink->format; |
593 |
|
✗ |
s->nb_channels = outlink->ch_layout.nb_channels; |
594 |
|
✗ |
s->ch_gain = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*s->ch_gain)); |
595 |
|
✗ |
s->loading = av_calloc(ctx->inputs[0]->ch_layout.nb_channels, sizeof(*s->loading)); |
596 |
|
✗ |
if (!s->loading || !s->ch_gain) |
597 |
|
✗ |
return AVERROR(ENOMEM); |
598 |
|
|
|
599 |
|
✗ |
s->fadein[0] = ff_get_audio_buffer(outlink, s->min_part_size); |
600 |
|
✗ |
s->fadein[1] = ff_get_audio_buffer(outlink, s->min_part_size); |
601 |
|
✗ |
if (!s->fadein[0] || !s->fadein[1]) |
602 |
|
✗ |
return AVERROR(ENOMEM); |
603 |
|
|
|
604 |
|
✗ |
s->xfade[0] = ff_get_audio_buffer(outlink, s->min_part_size); |
605 |
|
✗ |
s->xfade[1] = ff_get_audio_buffer(outlink, s->min_part_size); |
606 |
|
✗ |
if (!s->xfade[0] || !s->xfade[1]) |
607 |
|
✗ |
return AVERROR(ENOMEM); |
608 |
|
|
|
609 |
|
✗ |
switch (s->format) { |
610 |
|
✗ |
case AV_SAMPLE_FMT_FLTP: |
611 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) { |
612 |
|
✗ |
float *dst0 = (float *)s->xfade[0]->extended_data[ch]; |
613 |
|
✗ |
float *dst1 = (float *)s->xfade[1]->extended_data[ch]; |
614 |
|
|
|
615 |
|
✗ |
for (int n = 0; n < s->min_part_size; n++) { |
616 |
|
✗ |
dst0[n] = (n + 1.f) / s->min_part_size; |
617 |
|
✗ |
dst1[n] = 1.f - dst0[n]; |
618 |
|
|
} |
619 |
|
|
} |
620 |
|
✗ |
break; |
621 |
|
✗ |
case AV_SAMPLE_FMT_DBLP: |
622 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) { |
623 |
|
✗ |
double *dst0 = (double *)s->xfade[0]->extended_data[ch]; |
624 |
|
✗ |
double *dst1 = (double *)s->xfade[1]->extended_data[ch]; |
625 |
|
|
|
626 |
|
✗ |
for (int n = 0; n < s->min_part_size; n++) { |
627 |
|
✗ |
dst0[n] = (n + 1.0) / s->min_part_size; |
628 |
|
✗ |
dst1[n] = 1.0 - dst0[n]; |
629 |
|
|
} |
630 |
|
|
} |
631 |
|
✗ |
break; |
632 |
|
|
} |
633 |
|
|
|
634 |
|
✗ |
return 0; |
635 |
|
|
} |
636 |
|
|
|
637 |
|
✗ |
static av_cold void uninit(AVFilterContext *ctx) |
638 |
|
|
{ |
639 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
640 |
|
|
|
641 |
|
✗ |
av_freep(&s->fdsp); |
642 |
|
✗ |
av_freep(&s->ch_gain); |
643 |
|
✗ |
av_freep(&s->loading); |
644 |
|
|
|
645 |
|
✗ |
for (int i = 0; i < s->nb_irs; i++) { |
646 |
|
✗ |
for (int j = 0; j < s->nb_segments[i]; j++) |
647 |
|
✗ |
uninit_segment(ctx, &s->seg[i][j]); |
648 |
|
|
|
649 |
|
✗ |
av_frame_free(&s->ir[i]); |
650 |
|
✗ |
av_frame_free(&s->norm_ir[i]); |
651 |
|
|
} |
652 |
|
|
|
653 |
|
✗ |
av_frame_free(&s->fadein[0]); |
654 |
|
✗ |
av_frame_free(&s->fadein[1]); |
655 |
|
|
|
656 |
|
✗ |
av_frame_free(&s->xfade[0]); |
657 |
|
✗ |
av_frame_free(&s->xfade[1]); |
658 |
|
✗ |
} |
659 |
|
|
|
660 |
|
✗ |
static av_cold int init(AVFilterContext *ctx) |
661 |
|
|
{ |
662 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
663 |
|
|
AVFilterPad pad; |
664 |
|
|
int ret; |
665 |
|
|
|
666 |
|
✗ |
s->prev_selir = FFMIN(s->nb_irs - 1, s->selir); |
667 |
|
|
|
668 |
|
✗ |
pad = (AVFilterPad) { |
669 |
|
|
.name = "main", |
670 |
|
|
.type = AVMEDIA_TYPE_AUDIO, |
671 |
|
|
}; |
672 |
|
|
|
673 |
|
✗ |
ret = ff_append_inpad(ctx, &pad); |
674 |
|
✗ |
if (ret < 0) |
675 |
|
✗ |
return ret; |
676 |
|
|
|
677 |
|
✗ |
for (int n = 0; n < s->nb_irs; n++) { |
678 |
|
✗ |
pad = (AVFilterPad) { |
679 |
|
✗ |
.name = av_asprintf("ir%d", n), |
680 |
|
|
.type = AVMEDIA_TYPE_AUDIO, |
681 |
|
|
}; |
682 |
|
|
|
683 |
|
✗ |
if (!pad.name) |
684 |
|
✗ |
return AVERROR(ENOMEM); |
685 |
|
|
|
686 |
|
✗ |
ret = ff_append_inpad_free_name(ctx, &pad); |
687 |
|
✗ |
if (ret < 0) |
688 |
|
✗ |
return ret; |
689 |
|
|
} |
690 |
|
|
|
691 |
|
✗ |
s->fdsp = avpriv_float_dsp_alloc(0); |
692 |
|
✗ |
if (!s->fdsp) |
693 |
|
✗ |
return AVERROR(ENOMEM); |
694 |
|
|
|
695 |
|
✗ |
ff_afir_init(&s->afirdsp); |
696 |
|
|
|
697 |
|
✗ |
s->min_part_size = 1 << av_log2(s->minp); |
698 |
|
✗ |
s->max_part_size = 1 << av_log2(s->maxp); |
699 |
|
|
|
700 |
|
✗ |
return 0; |
701 |
|
|
} |
702 |
|
|
|
703 |
|
✗ |
static int process_command(AVFilterContext *ctx, |
704 |
|
|
const char *cmd, |
705 |
|
|
const char *arg, |
706 |
|
|
char *res, |
707 |
|
|
int res_len, |
708 |
|
|
int flags) |
709 |
|
|
{ |
710 |
|
✗ |
AudioFIRContext *s = ctx->priv; |
711 |
|
|
int prev_selir, ret; |
712 |
|
|
|
713 |
|
✗ |
prev_selir = s->selir; |
714 |
|
✗ |
ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags); |
715 |
|
✗ |
if (ret < 0) |
716 |
|
✗ |
return ret; |
717 |
|
|
|
718 |
|
✗ |
s->selir = FFMIN(s->nb_irs - 1, s->selir); |
719 |
|
✗ |
if (s->selir != prev_selir) { |
720 |
|
✗ |
s->prev_selir = prev_selir; |
721 |
|
|
|
722 |
|
✗ |
for (int ch = 0; ch < s->nb_channels; ch++) |
723 |
|
✗ |
s->loading[ch] = 1; |
724 |
|
|
} |
725 |
|
|
|
726 |
|
✗ |
return 0; |
727 |
|
|
} |
728 |
|
|
|
729 |
|
|
#define AF AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
730 |
|
|
#define AFR AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
731 |
|
|
#define VF AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
732 |
|
|
#define OFFSET(x) offsetof(AudioFIRContext, x) |
733 |
|
|
|
734 |
|
|
static const AVOption afir_options[] = { |
735 |
|
|
{ "dry", "set dry gain", OFFSET(dry_gain), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 10, AFR }, |
736 |
|
|
{ "wet", "set wet gain", OFFSET(wet_gain), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 10, AFR }, |
737 |
|
|
{ "length", "set IR length", OFFSET(length), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 1, AF }, |
738 |
|
|
{ "gtype", "set IR auto gain type",OFFSET(gtype), AV_OPT_TYPE_INT, {.i64=0}, -1, 4, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
739 |
|
|
{ "none", "without auto gain", 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
740 |
|
|
{ "peak", "peak gain", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
741 |
|
|
{ "dc", "DC gain", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
742 |
|
|
{ "gn", "gain to noise", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
743 |
|
|
{ "ac", "AC gain", 0, AV_OPT_TYPE_CONST, {.i64=3}, 0, 0, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
744 |
|
|
{ "rms", "RMS gain", 0, AV_OPT_TYPE_CONST, {.i64=4}, 0, 0, AF|AV_OPT_FLAG_DEPRECATED, .unit = "gtype" }, |
745 |
|
|
{ "irnorm", "set IR norm", OFFSET(ir_norm), AV_OPT_TYPE_FLOAT, {.dbl=1}, -1, 2, AF }, |
746 |
|
|
{ "irlink", "set IR link", OFFSET(ir_link), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, AF }, |
747 |
|
|
{ "irgain", "set IR gain", OFFSET(ir_gain), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 1, AF }, |
748 |
|
|
{ "irfmt", "set IR format", OFFSET(ir_format), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, AF, .unit = "irfmt" }, |
749 |
|
|
{ "mono", "single channel", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AF, .unit = "irfmt" }, |
750 |
|
|
{ "input", "same as input", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AF, .unit = "irfmt" }, |
751 |
|
|
{ "maxir", "set max IR length", OFFSET(max_ir_len), AV_OPT_TYPE_FLOAT, {.dbl=30}, 0.1, 60, AF }, |
752 |
|
|
{ "response", "show IR frequency response", OFFSET(response), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, VF|AV_OPT_FLAG_DEPRECATED }, |
753 |
|
|
{ "channel", "set IR channel to display frequency response", OFFSET(ir_channel), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, VF|AV_OPT_FLAG_DEPRECATED }, |
754 |
|
|
{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "hd720"}, 0, 0, VF|AV_OPT_FLAG_DEPRECATED }, |
755 |
|
|
{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT32_MAX, VF|AV_OPT_FLAG_DEPRECATED }, |
756 |
|
|
{ "minp", "set min partition size", OFFSET(minp), AV_OPT_TYPE_INT, {.i64=8192}, 1, 65536, AF }, |
757 |
|
|
{ "maxp", "set max partition size", OFFSET(maxp), AV_OPT_TYPE_INT, {.i64=8192}, 8, 65536, AF }, |
758 |
|
|
{ "nbirs", "set number of input IRs",OFFSET(nb_irs),AV_OPT_TYPE_INT, {.i64=1}, 1, 32, AF }, |
759 |
|
|
{ "ir", "select IR", OFFSET(selir), AV_OPT_TYPE_INT, {.i64=0}, 0, 31, AFR }, |
760 |
|
|
{ "precision", "set processing precision", OFFSET(precision), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, AF, .unit = "precision" }, |
761 |
|
|
{ "auto", "set auto processing precision", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AF, .unit = "precision" }, |
762 |
|
|
{ "float", "set single-floating point processing precision", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AF, .unit = "precision" }, |
763 |
|
|
{ "double","set double-floating point processing precision", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, AF, .unit = "precision" }, |
764 |
|
|
{ "irload", "set IR loading type", OFFSET(ir_load), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, AF, .unit = "irload" }, |
765 |
|
|
{ "init", "load all IRs on init", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AF, .unit = "irload" }, |
766 |
|
|
{ "access", "load IR on access", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AF, .unit = "irload" }, |
767 |
|
|
{ NULL } |
768 |
|
|
}; |
769 |
|
|
|
770 |
|
|
AVFILTER_DEFINE_CLASS(afir); |
771 |
|
|
|
772 |
|
|
static const AVFilterPad outputs[] = { |
773 |
|
|
{ |
774 |
|
|
.name = "default", |
775 |
|
|
.type = AVMEDIA_TYPE_AUDIO, |
776 |
|
|
.config_props = config_output, |
777 |
|
|
}, |
778 |
|
|
}; |
779 |
|
|
|
780 |
|
|
const AVFilter ff_af_afir = { |
781 |
|
|
.name = "afir", |
782 |
|
|
.description = NULL_IF_CONFIG_SMALL("Apply Finite Impulse Response filter with supplied coefficients in additional stream(s)."), |
783 |
|
|
.priv_size = sizeof(AudioFIRContext), |
784 |
|
|
.priv_class = &afir_class, |
785 |
|
|
FILTER_QUERY_FUNC2(query_formats), |
786 |
|
|
FILTER_OUTPUTS(outputs), |
787 |
|
|
.init = init, |
788 |
|
|
.activate = activate, |
789 |
|
|
.uninit = uninit, |
790 |
|
|
.process_command = process_command, |
791 |
|
|
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS | |
792 |
|
|
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | |
793 |
|
|
AVFILTER_FLAG_SLICE_THREADS, |
794 |
|
|
}; |
795 |
|
|
|