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avfilter/avf_abitscope: switch to activate

This commit is contained in:
Paul B Mahol 2019-05-01 21:17:55 +02:00
parent 255feeccc5
commit a7fa89fa0b
1 changed files with 27 additions and 6 deletions
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33
libavfilter/avf_abitscope.c
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@ -24,6 +24,7 @@
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "audio.h"
#include "video.h"
@ -36,6 +37,7 @@ typedef struct AudioBitScopeContext {
char *colors;
int nb_channels;
int nb_samples;
int depth;
uint8_t *fg;
@ -91,13 +93,10 @@ static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
AudioBitScopeContext *s = ctx->priv;
int ch, nb_samples;
int ch;
char *colors, *saveptr = NULL;
nb_samples = FFMAX(1024, ((double)inlink->sample_rate / av_q2d(s->frame_rate)) + 0.5);
inlink->partial_buf_size =
inlink->min_samples =
inlink->max_samples = nb_samples;
s->nb_samples = FFMAX(1, ((double)inlink->sample_rate / av_q2d(s->frame_rate)) + 0.5);
s->nb_channels = inlink->channels;
s->depth = inlink->format == AV_SAMPLE_FMT_S16P ? 16 : 32;
@ -222,12 +221,33 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
return ff_filter_frame(outlink, outpicref);
}
static int activate(AVFilterContext *ctx)
{
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AudioBitScopeContext *s = ctx->priv;
AVFrame *in;
int ret;
FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
ret = ff_inlink_consume_samples(inlink, s->nb_samples, s->nb_samples, &in);
if (ret < 0)
return ret;
if (ret > 0)
return filter_frame(inlink, in);
FF_FILTER_FORWARD_STATUS(inlink, outlink);
FF_FILTER_FORWARD_WANTED(outlink, inlink);
return FFERROR_NOT_READY;
}
static const AVFilterPad inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
};
@ -248,5 +268,6 @@ AVFilter ff_avf_abitscope = {
.priv_size = sizeof(AudioBitScopeContext),
.inputs = inputs,
.outputs = outputs,
.activate = activate,
.priv_class = &abitscope_class,
};