mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
332 lines
11 KiB
332 lines
11 KiB
/* |
|
* Copyright (c) 2023 Paul B Mahol |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#include "libavutil/channel_layout.h" |
|
#include "libavutil/common.h" |
|
#include "libavutil/float_dsp.h" |
|
#include "libavutil/mem.h" |
|
#include "libavutil/opt.h" |
|
|
|
#include "audio.h" |
|
#include "avfilter.h" |
|
#include "formats.h" |
|
#include "filters.h" |
|
|
|
enum OutModes { |
|
IN_MODE, |
|
DESIRED_MODE, |
|
OUT_MODE, |
|
NOISE_MODE, |
|
ERROR_MODE, |
|
NB_OMODES |
|
}; |
|
|
|
typedef struct AudioAPContext { |
|
const AVClass *class; |
|
|
|
int order; |
|
int projection; |
|
float mu; |
|
float delta; |
|
int output_mode; |
|
int precision; |
|
|
|
int kernel_size; |
|
AVFrame *offset; |
|
AVFrame *delay; |
|
AVFrame *coeffs; |
|
AVFrame *e; |
|
AVFrame *p; |
|
AVFrame *x; |
|
AVFrame *w; |
|
AVFrame *dcoeffs; |
|
AVFrame *tmp; |
|
AVFrame *tmpm; |
|
AVFrame *itmpm; |
|
|
|
void **tmpmp; |
|
void **itmpmp; |
|
|
|
AVFrame *frame[2]; |
|
|
|
int (*filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
|
|
|
AVFloatDSPContext *fdsp; |
|
} AudioAPContext; |
|
|
|
#define OFFSET(x) offsetof(AudioAPContext, x) |
|
#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
|
#define AT AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
|
|
|
static const AVOption aap_options[] = { |
|
{ "order", "set the filter order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=16}, 1, INT16_MAX, A }, |
|
{ "projection", "set the filter projection", OFFSET(projection), AV_OPT_TYPE_INT, {.i64=2}, 1, 256, A }, |
|
{ "mu", "set the filter mu", OFFSET(mu), AV_OPT_TYPE_FLOAT, {.dbl=0.0001},0,1, AT }, |
|
{ "delta", "set the filter delta", OFFSET(delta), AV_OPT_TYPE_FLOAT, {.dbl=0.001},0, 1, AT }, |
|
{ "out_mode", "set output mode", OFFSET(output_mode), AV_OPT_TYPE_INT, {.i64=OUT_MODE}, 0, NB_OMODES-1, AT, .unit = "mode" }, |
|
{ "i", "input", 0, AV_OPT_TYPE_CONST, {.i64=IN_MODE}, 0, 0, AT, .unit = "mode" }, |
|
{ "d", "desired", 0, AV_OPT_TYPE_CONST, {.i64=DESIRED_MODE}, 0, 0, AT, .unit = "mode" }, |
|
{ "o", "output", 0, AV_OPT_TYPE_CONST, {.i64=OUT_MODE}, 0, 0, AT, .unit = "mode" }, |
|
{ "n", "noise", 0, AV_OPT_TYPE_CONST, {.i64=NOISE_MODE}, 0, 0, AT, .unit = "mode" }, |
|
{ "e", "error", 0, AV_OPT_TYPE_CONST, {.i64=ERROR_MODE}, 0, 0, AT, .unit = "mode" }, |
|
{ "precision", "set processing precision", OFFSET(precision), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, A, .unit = "precision" }, |
|
{ "auto", "set auto processing precision", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, A, .unit = "precision" }, |
|
{ "float", "set single-floating point processing precision", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, A, .unit = "precision" }, |
|
{ "double","set double-floating point processing precision", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, A, .unit = "precision" }, |
|
{ NULL } |
|
}; |
|
|
|
AVFILTER_DEFINE_CLASS(aap); |
|
|
|
static int query_formats(const AVFilterContext *ctx, |
|
AVFilterFormatsConfig **cfg_in, |
|
AVFilterFormatsConfig **cfg_out) |
|
{ |
|
const AudioAPContext *s = ctx->priv; |
|
static const enum AVSampleFormat sample_fmts[3][3] = { |
|
{ AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP, AV_SAMPLE_FMT_NONE }, |
|
{ AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE }, |
|
{ AV_SAMPLE_FMT_DBLP, AV_SAMPLE_FMT_NONE }, |
|
}; |
|
int ret; |
|
|
|
if ((ret = ff_set_common_formats_from_list2(ctx, cfg_in, cfg_out, |
|
sample_fmts[s->precision])) < 0) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
static int activate(AVFilterContext *ctx) |
|
{ |
|
AudioAPContext *s = ctx->priv; |
|
int i, ret, status; |
|
int nb_samples; |
|
int64_t pts; |
|
|
|
FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx); |
|
|
|
nb_samples = FFMIN(ff_inlink_queued_samples(ctx->inputs[0]), |
|
ff_inlink_queued_samples(ctx->inputs[1])); |
|
for (i = 0; i < ctx->nb_inputs && nb_samples > 0; i++) { |
|
if (s->frame[i]) |
|
continue; |
|
|
|
if (ff_inlink_check_available_samples(ctx->inputs[i], nb_samples) > 0) { |
|
ret = ff_inlink_consume_samples(ctx->inputs[i], nb_samples, nb_samples, &s->frame[i]); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
} |
|
|
|
if (s->frame[0] && s->frame[1]) { |
|
AVFrame *out; |
|
|
|
out = ff_get_audio_buffer(ctx->outputs[0], s->frame[0]->nb_samples); |
|
if (!out) { |
|
av_frame_free(&s->frame[0]); |
|
av_frame_free(&s->frame[1]); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
ff_filter_execute(ctx, s->filter_channels, out, NULL, |
|
FFMIN(ctx->outputs[0]->ch_layout.nb_channels, ff_filter_get_nb_threads(ctx))); |
|
|
|
out->pts = s->frame[0]->pts; |
|
out->duration = s->frame[0]->duration; |
|
|
|
av_frame_free(&s->frame[0]); |
|
av_frame_free(&s->frame[1]); |
|
|
|
ret = ff_filter_frame(ctx->outputs[0], out); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (!nb_samples) { |
|
for (i = 0; i < 2; i++) { |
|
if (ff_inlink_acknowledge_status(ctx->inputs[i], &status, &pts)) { |
|
ff_outlink_set_status(ctx->outputs[0], status, pts); |
|
return 0; |
|
} |
|
} |
|
} |
|
|
|
if (ff_outlink_frame_wanted(ctx->outputs[0])) { |
|
for (i = 0; i < 2; i++) { |
|
if (s->frame[i] || ff_inlink_queued_samples(ctx->inputs[i]) > 0) |
|
continue; |
|
ff_inlink_request_frame(ctx->inputs[i]); |
|
return 0; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
#define DEPTH 32 |
|
#include "aap_template.c" |
|
|
|
#undef DEPTH |
|
#define DEPTH 64 |
|
#include "aap_template.c" |
|
|
|
static int config_output(AVFilterLink *outlink) |
|
{ |
|
const int channels = outlink->ch_layout.nb_channels; |
|
AVFilterContext *ctx = outlink->src; |
|
AudioAPContext *s = ctx->priv; |
|
|
|
s->kernel_size = FFALIGN(s->order, 16); |
|
|
|
if (!s->offset) |
|
s->offset = ff_get_audio_buffer(outlink, 3); |
|
if (!s->delay) |
|
s->delay = ff_get_audio_buffer(outlink, 2 * s->kernel_size); |
|
if (!s->dcoeffs) |
|
s->dcoeffs = ff_get_audio_buffer(outlink, s->kernel_size); |
|
if (!s->coeffs) |
|
s->coeffs = ff_get_audio_buffer(outlink, 2 * s->kernel_size); |
|
if (!s->e) |
|
s->e = ff_get_audio_buffer(outlink, 2 * s->projection); |
|
if (!s->p) |
|
s->p = ff_get_audio_buffer(outlink, s->projection + 1); |
|
if (!s->x) |
|
s->x = ff_get_audio_buffer(outlink, 2 * (s->projection + s->order)); |
|
if (!s->w) |
|
s->w = ff_get_audio_buffer(outlink, s->projection); |
|
if (!s->tmp) |
|
s->tmp = ff_get_audio_buffer(outlink, s->kernel_size); |
|
if (!s->tmpm) |
|
s->tmpm = ff_get_audio_buffer(outlink, s->projection * s->projection); |
|
if (!s->itmpm) |
|
s->itmpm = ff_get_audio_buffer(outlink, s->projection * s->projection); |
|
|
|
if (!s->tmpmp) |
|
s->tmpmp = av_calloc(s->projection * channels, sizeof(*s->tmpmp)); |
|
if (!s->itmpmp) |
|
s->itmpmp = av_calloc(s->projection * channels, sizeof(*s->itmpmp)); |
|
|
|
if (!s->offset || !s->delay || !s->dcoeffs || !s->coeffs || !s->tmpmp || !s->itmpmp || |
|
!s->e || !s->p || !s->x || !s->w || !s->tmp || !s->tmpm || !s->itmpm) |
|
return AVERROR(ENOMEM); |
|
|
|
switch (outlink->format) { |
|
case AV_SAMPLE_FMT_DBLP: |
|
for (int ch = 0; ch < channels; ch++) { |
|
double *itmpm = (double *)s->itmpm->extended_data[ch]; |
|
double *tmpm = (double *)s->tmpm->extended_data[ch]; |
|
double **itmpmp = (double **)&s->itmpmp[s->projection * ch]; |
|
double **tmpmp = (double **)&s->tmpmp[s->projection * ch]; |
|
|
|
for (int i = 0; i < s->projection; i++) { |
|
itmpmp[i] = &itmpm[i * s->projection]; |
|
tmpmp[i] = &tmpm[i * s->projection]; |
|
} |
|
} |
|
|
|
s->filter_channels = filter_channels_double; |
|
break; |
|
case AV_SAMPLE_FMT_FLTP: |
|
for (int ch = 0; ch < channels; ch++) { |
|
float *itmpm = (float *)s->itmpm->extended_data[ch]; |
|
float *tmpm = (float *)s->tmpm->extended_data[ch]; |
|
float **itmpmp = (float **)&s->itmpmp[s->projection * ch]; |
|
float **tmpmp = (float **)&s->tmpmp[s->projection * ch]; |
|
|
|
for (int i = 0; i < s->projection; i++) { |
|
itmpmp[i] = &itmpm[i * s->projection]; |
|
tmpmp[i] = &tmpm[i * s->projection]; |
|
} |
|
} |
|
|
|
s->filter_channels = filter_channels_float; |
|
break; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static av_cold int init(AVFilterContext *ctx) |
|
{ |
|
AudioAPContext *s = ctx->priv; |
|
|
|
s->fdsp = avpriv_float_dsp_alloc(0); |
|
if (!s->fdsp) |
|
return AVERROR(ENOMEM); |
|
|
|
return 0; |
|
} |
|
|
|
static av_cold void uninit(AVFilterContext *ctx) |
|
{ |
|
AudioAPContext *s = ctx->priv; |
|
|
|
av_freep(&s->fdsp); |
|
|
|
av_frame_free(&s->offset); |
|
av_frame_free(&s->delay); |
|
av_frame_free(&s->dcoeffs); |
|
av_frame_free(&s->coeffs); |
|
av_frame_free(&s->e); |
|
av_frame_free(&s->p); |
|
av_frame_free(&s->w); |
|
av_frame_free(&s->x); |
|
av_frame_free(&s->tmp); |
|
av_frame_free(&s->tmpm); |
|
av_frame_free(&s->itmpm); |
|
|
|
av_freep(&s->tmpmp); |
|
av_freep(&s->itmpmp); |
|
} |
|
|
|
static const AVFilterPad inputs[] = { |
|
{ |
|
.name = "input", |
|
.type = AVMEDIA_TYPE_AUDIO, |
|
}, |
|
{ |
|
.name = "desired", |
|
.type = AVMEDIA_TYPE_AUDIO, |
|
}, |
|
}; |
|
|
|
static const AVFilterPad outputs[] = { |
|
{ |
|
.name = "default", |
|
.type = AVMEDIA_TYPE_AUDIO, |
|
.config_props = config_output, |
|
}, |
|
}; |
|
|
|
const AVFilter ff_af_aap = { |
|
.name = "aap", |
|
.description = NULL_IF_CONFIG_SMALL("Apply Affine Projection algorithm to first audio stream."), |
|
.priv_size = sizeof(AudioAPContext), |
|
.priv_class = &aap_class, |
|
.init = init, |
|
.uninit = uninit, |
|
.activate = activate, |
|
FILTER_INPUTS(inputs), |
|
FILTER_OUTPUTS(outputs), |
|
FILTER_QUERY_FUNC2(query_formats), |
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | |
|
AVFILTER_FLAG_SLICE_THREADS, |
|
.process_command = ff_filter_process_command, |
|
};
|
|
|