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Code Issues Releases Activity

avfilter/af_asdr: use single structure for sums

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This commit is contained in:
Paul B Mahol 2023-08-13 05:03:00 +02:00
parent e41d52216c
commit 10110a30b5
1 changed files with 24 additions and 20 deletions
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44
libavfilter/af_asdr.c
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@ -27,13 +27,18 @@
#include "filters.h"
#include "internal.h"
typedef struct ChanStats {
double u;
double v;
double uv;
} ChanStats;
typedef struct AudioSDRContext {
int channels;
uint64_t nb_samples;
double max;
double *sum_u;
double *sum_v;
double *sum_uv;
ChanStats *chs;
AVFrame *cache[2];
@ -52,6 +57,7 @@ static int sdr_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)\
const int nb_samples = u->nb_samples; \
\
for (int ch = start; ch < end; ch++) { \
ChanStats *chs = &s->chs[ch]; \
const type *const us = (type *)u->extended_data[ch]; \
const type *const vs = (type *)v->extended_data[ch]; \
double sum_uv = 0.; \
@ -62,8 +68,8 @@ static int sdr_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)\
sum_uv += (us[n] - vs[n]) * (us[n] - vs[n]); \
} \
\
s->sum_uv[ch] += sum_uv; \
s->sum_u[ch] += sum_u; \
chs->uv += sum_uv; \
chs->u += sum_u; \
} \
\
return 0; \
@ -84,6 +90,7 @@ static int sisdr_##name(AVFilterContext *ctx, void *arg,int jobnr,int nb_jobs)\
const int nb_samples = u->nb_samples; \
\
for (int ch = start; ch < end; ch++) { \
ChanStats *chs = &s->chs[ch]; \
const type *const us = (type *)u->extended_data[ch]; \
const type *const vs = (type *)v->extended_data[ch]; \
double sum_uv = 0.; \
@ -96,9 +103,9 @@ static int sisdr_##name(AVFilterContext *ctx, void *arg,int jobnr,int nb_jobs)\
sum_uv += us[n] * vs[n]; \
} \
\
s->sum_uv[ch] += sum_uv; \
s->sum_u[ch] += sum_u; \
s->sum_v[ch] += sum_v; \
chs->uv += sum_uv; \
chs->u += sum_u; \
chs->v += sum_v; \
} \
\
return 0; \
@ -119,6 +126,7 @@ static int psnr_##name(AVFilterContext *ctx, void *arg, int jobnr,int nb_jobs)\
const int nb_samples = u->nb_samples; \
\
for (int ch = start; ch < end; ch++) { \
ChanStats *chs = &s->chs[ch]; \
const type *const us = (type *)u->extended_data[ch]; \
const type *const vs = (type *)v->extended_data[ch]; \
double sum_uv = 0.; \
@ -126,7 +134,7 @@ static int psnr_##name(AVFilterContext *ctx, void *arg, int jobnr,int nb_jobs)\
for (int n = 0; n < nb_samples; n++) \
sum_uv += (us[n] - vs[n]) * (us[n] - vs[n]); \
\
s->sum_uv[ch] += sum_uv; \
chs->uv += sum_uv; \
} \
\
return 0; \
@ -204,10 +212,8 @@ static int config_output(AVFilterLink *outlink)
s->filter = inlink->format == AV_SAMPLE_FMT_FLTP ? psnr_fltp : psnr_dblp;
s->max = inlink->format == AV_SAMPLE_FMT_FLTP ? FLT_MAX : DBL_MAX;
s->sum_u = av_calloc(outlink->ch_layout.nb_channels, sizeof(*s->sum_u));
s->sum_v = av_calloc(outlink->ch_layout.nb_channels, sizeof(*s->sum_v));
s->sum_uv = av_calloc(outlink->ch_layout.nb_channels, sizeof(*s->sum_uv));
if (!s->sum_u || !s->sum_uv || !s->sum_v)
s->chs = av_calloc(outlink->ch_layout.nb_channels, sizeof(*s->chs));
if (!s->chs)
return AVERROR(ENOMEM);
return 0;
@ -219,17 +225,17 @@ static av_cold void uninit(AVFilterContext *ctx)
if (!strcmp(ctx->filter->name, "asdr")) {
for (int ch = 0; ch < s->channels; ch++)
av_log(ctx, AV_LOG_INFO, "SDR ch%d: %g dB\n", ch, 20. * log10(s->sum_u[ch] / s->sum_uv[ch]));
av_log(ctx, AV_LOG_INFO, "SDR ch%d: %g dB\n", ch, 20. * log10(s->chs[ch].u / s->chs[ch].uv));
} else if (!strcmp(ctx->filter->name, "asisdr")) {
for (int ch = 0; ch < s->channels; ch++) {
double scale = s->sum_uv[ch] / s->sum_v[ch];
double sisdr = s->sum_u[ch] / (s->sum_u[ch] + scale*scale*s->sum_v[ch] - 2.0*scale*s->sum_uv[ch]);
double scale = s->chs[ch].uv / s->chs[ch].v;
double sisdr = s->chs[ch].u / fmax(0., s->chs[ch].u + scale*scale*s->chs[ch].v - 2.0*scale*s->chs[ch].uv);
av_log(ctx, AV_LOG_INFO, "SI-SDR ch%d: %g dB\n", ch, 10. * log10(sisdr));
}
} else {
for (int ch = 0; ch < s->channels; ch++) {
double psnr = s->sum_uv[ch] > 0.0 ? 2.0 * log(s->max) - log(s->nb_samples / s->sum_uv[ch]) : INFINITY;
double psnr = s->chs[ch].uv > 0.0 ? 2.0 * log(s->max) - log(s->nb_samples / s->chs[ch].uv) : INFINITY;
av_log(ctx, AV_LOG_INFO, "PSNR ch%d: %g dB\n", ch, psnr);
}
@ -238,9 +244,7 @@ static av_cold void uninit(AVFilterContext *ctx)
av_frame_free(&s->cache[0]);
av_frame_free(&s->cache[1]);
av_freep(&s->sum_u);
av_freep(&s->sum_v);
av_freep(&s->sum_uv);
av_freep(&s->chs);
}
static const AVFilterPad inputs[] = {