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avfilter/af_agate: switch to activate

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
2017-08-25 09:07:28 +02:00
parent e0e991f8a1
commit 4b96fd2b1e
1 changed files with 62 additions and 58 deletions
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120
libavfilter/af_agate.c
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@@ -29,6 +29,7 @@
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "filters.h"
#include "formats.h"
#include "hermite.h"
@@ -265,71 +266,76 @@ AVFilter ff_af_agate = {
#define sidechaingate_options options
AVFILTER_DEFINE_CLASS(sidechaingate);
static int scfilter_frame(AVFilterLink *link, AVFrame *frame)
static int activate(AVFilterContext *ctx)
{
AVFilterContext *ctx = link->dst;
AudioGateContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out, *in[2] = { NULL };
AVFrame *out = NULL, *in[2] = { NULL };
int ret, i, status, nb_samples;
double *dst;
int nb_samples;
int i;
int64_t pts;
for (i = 0; i < 2; i++)
if (link == ctx->inputs[i])
break;
av_assert0(i < 2);
av_audio_fifo_write(s->fifo[i], (void **)frame->extended_data,
frame->nb_samples);
av_frame_free(&frame);
if ((ret = ff_inlink_consume_frame(ctx->inputs[0], &in[0])) > 0) {
av_audio_fifo_write(s->fifo[0], (void **)in[0]->extended_data,
in[0]->nb_samples);
av_frame_free(&in[0]);
}
if (ret < 0)
return ret;
if ((ret = ff_inlink_consume_frame(ctx->inputs[1], &in[1])) > 0) {
av_audio_fifo_write(s->fifo[1], (void **)in[1]->extended_data,
in[1]->nb_samples);
av_frame_free(&in[1]);
}
if (ret < 0)
return ret;
nb_samples = FFMIN(av_audio_fifo_size(s->fifo[0]), av_audio_fifo_size(s->fifo[1]));
if (!nb_samples)
return 0;
out = ff_get_audio_buffer(outlink, nb_samples);
if (!out)
return AVERROR(ENOMEM);
for (i = 0; i < 2; i++) {
in[i] = ff_get_audio_buffer(ctx->inputs[i], nb_samples);
if (!in[i]) {
av_frame_free(&in[0]);
av_frame_free(&in[1]);
av_frame_free(&out);
if (nb_samples) {
out = ff_get_audio_buffer(ctx->outputs[0], nb_samples);
if (!out)
return AVERROR(ENOMEM);
for (i = 0; i < 2; i++) {
in[i] = ff_get_audio_buffer(ctx->inputs[i], nb_samples);
if (!in[i]) {
av_frame_free(&in[0]);
av_frame_free(&in[1]);
av_frame_free(&out);
return AVERROR(ENOMEM);
}
av_audio_fifo_read(s->fifo[i], (void **)in[i]->data, nb_samples);
}
av_audio_fifo_read(s->fifo[i], (void **)in[i]->data, nb_samples);
dst = (double *)out->data[0];
out->pts = s->pts;
s->pts += nb_samples;
gate(s, (double *)in[0]->data[0], dst,
(double *)in[1]->data[0], nb_samples,
s->level_in, s->level_sc,
ctx->inputs[0], ctx->inputs[1]);
av_frame_free(&in[0]);
av_frame_free(&in[1]);
ret = ff_filter_frame(ctx->outputs[0], out);
if (ret < 0)
return ret;
}
dst = (double *)out->data[0];
out->pts = s->pts;
s->pts += nb_samples;
gate(s, (double *)in[0]->data[0], dst,
(double *)in[1]->data[0], nb_samples,
s->level_in, s->level_sc,
ctx->inputs[0], ctx->inputs[1]);
av_frame_free(&in[0]);
av_frame_free(&in[1]);
return ff_filter_frame(outlink, out);
}
static int screquest_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AudioGateContext *s = ctx->priv;
int i;
/* get a frame on each input */
for (i = 0; i < 2; i++) {
AVFilterLink *inlink = ctx->inputs[i];
if (!av_audio_fifo_size(s->fifo[i]))
return ff_request_frame(inlink);
if (ff_inlink_acknowledge_status(ctx->inputs[0], &status, &pts)) {
ff_outlink_set_status(ctx->outputs[0], status, pts);
return 0;
} else if (ff_inlink_acknowledge_status(ctx->inputs[1], &status, &pts)) {
ff_outlink_set_status(ctx->outputs[0], status, pts);
return 0;
} else {
if (ff_outlink_frame_wanted(ctx->outputs[0])) {
if (!av_audio_fifo_size(s->fifo[0]))
ff_inlink_request_frame(ctx->inputs[0]);
if (!av_audio_fifo_size(s->fifo[1]))
ff_inlink_request_frame(ctx->inputs[1]);
}
return 0;
}
return 0;
}
static int scquery_formats(AVFilterContext *ctx)
@@ -408,11 +414,9 @@ static const AVFilterPad sidechaingate_inputs[] = {
{
.name = "main",
.type = AVMEDIA_TYPE_AUDIO,
.filter_frame = scfilter_frame,
},{
.name = "sidechain",
.type = AVMEDIA_TYPE_AUDIO,
.filter_frame = scfilter_frame,
},
{ NULL }
};
@@ -422,7 +426,6 @@ static const AVFilterPad sidechaingate_outputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = scconfig_output,
.request_frame = screquest_frame,
},
{ NULL }
};
@@ -433,6 +436,7 @@ AVFilter ff_af_sidechaingate = {
.priv_size = sizeof(AudioGateContext),
.priv_class = &sidechaingate_class,
.query_formats = scquery_formats,
.activate = activate,
.uninit = uninit,
.inputs = sidechaingate_inputs,
.outputs = sidechaingate_outputs,