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avfilter/af_loudnorm: switch to activate

This commit is contained in:
Paul B Mahol 2022-02-22 15:07:50 +01:00
parent 36572a0c1d
commit 40d0cb93ab
1 changed files with 48 additions and 14 deletions
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62
libavfilter/af_loudnorm.c
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@ -22,6 +22,7 @@
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"
#include "audio.h"
#include "ebur128.h"
@ -502,9 +503,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
ff_ebur128_add_frames_double(s->r128_out, dst, subframe_length);
s->pts +=
out->nb_samples =
inlink->min_samples =
inlink->max_samples = subframe_length;
out->nb_samples = subframe_length;
s->frame_type = INNER_FRAME;
break;
@ -636,15 +635,14 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
return ff_filter_frame(outlink, out);
}
static int request_frame(AVFilterLink *outlink)
static int flush_frame(AVFilterLink *outlink)
{
int ret;
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = ctx->inputs[0];
LoudNormContext *s = ctx->priv;
int ret = 0;
ret = ff_request_frame(inlink);
if (ret == AVERROR_EOF && s->frame_type == INNER_FRAME) {
if (s->frame_type == INNER_FRAME) {
double *src;
double *buf;
int nb_samples, n, c, offset;
@ -681,6 +679,48 @@ static int request_frame(AVFilterLink *outlink)
return ret;
}
static int activate(AVFilterContext *ctx)
{
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
LoudNormContext *s = ctx->priv;
AVFrame *in = NULL;
int ret = 0, status;
int64_t pts;
FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
if (s->frame_type != LINEAR_MODE) {
int nb_samples;
if (s->frame_type == FIRST_FRAME) {
nb_samples = frame_size(inlink->sample_rate, 3000);
} else {
nb_samples = frame_size(inlink->sample_rate, 100);
}
ret = ff_inlink_consume_samples(inlink, nb_samples, nb_samples, &in);
} else {
ret = ff_inlink_consume_frame(inlink, &in);
}
if (ret < 0)
return ret;
if (ret > 0)
ret = filter_frame(inlink, in);
if (ret < 0)
return ret;
if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
ff_outlink_set_status(outlink, status, pts);
return flush_frame(outlink);
}
FF_FILTER_FORWARD_WANTED(outlink, inlink);
return FFERROR_NOT_READY;
}
static int query_formats(AVFilterContext *ctx)
{
LoudNormContext *s = ctx->priv;
@ -749,11 +789,6 @@ static int config_input(AVFilterLink *inlink)
init_gaussian_filter(s);
if (s->frame_type != LINEAR_MODE) {
inlink->min_samples =
inlink->max_samples = frame_size(inlink->sample_rate, 3000);
}
s->pts = AV_NOPTS_VALUE;
s->buf_index =
s->prev_buf_index =
@ -894,14 +929,12 @@ static const AVFilterPad avfilter_af_loudnorm_inputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_input,
.filter_frame = filter_frame,
},
};
static const AVFilterPad avfilter_af_loudnorm_outputs[] = {
{
.name = "default",
.request_frame = request_frame,
.type = AVMEDIA_TYPE_AUDIO,
},
};
@ -912,6 +945,7 @@ const AVFilter ff_af_loudnorm = {
.priv_size = sizeof(LoudNormContext),
.priv_class = &loudnorm_class,
.init = init,
.activate = activate,
.uninit = uninit,
FILTER_INPUTS(avfilter_af_loudnorm_inputs),
FILTER_OUTPUTS(avfilter_af_loudnorm_outputs),