#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
+#include "filters.h"
#include "formats.h"
#include "audio.h"
#include "video.h"
int mirror;
unsigned prev_x, prev_y;
AVRational frame_rate;
+ int nb_samples;
} AudioVectorScopeContext;
#define OFFSET(x) offsetof(AudioVectorScopeContext, x)
{
AVFilterContext *ctx = inlink->dst;
AudioVectorScopeContext *s = ctx->priv;
- int nb_samples;
- 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, av_rescale(inlink->sample_rate, s->frame_rate.den, s->frame_rate.num));
return 0;
}
return ff_filter_frame(outlink, av_frame_clone(s->outpicref));
}
+static int activate(AVFilterContext *ctx)
+{
+ AVFilterLink *inlink = ctx->inputs[0];
+ AVFilterLink *outlink = ctx->outputs[0];
+ AudioVectorScopeContext *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 av_cold void uninit(AVFilterContext *ctx)
{
AudioVectorScopeContext *s = ctx->priv;
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_input,
- .filter_frame = filter_frame,
},
{ NULL }
};
.uninit = uninit,
.query_formats = query_formats,
.priv_size = sizeof(AudioVectorScopeContext),
+ .activate = activate,
.inputs = audiovectorscope_inputs,
.outputs = audiovectorscope_outputs,
.priv_class = &avectorscope_class,