AVFilterContext *ctx = inlink->dst;
ShowVolumeContext *s = ctx->priv;
- s->nb_samples = FFMAX(1024, ((double)inlink->sample_rate / av_q2d(s->frame_rate)) + 0.5);
+ s->nb_samples = FFMAX(1, av_rescale(inlink->sample_rate, s->frame_rate.den, s->frame_rate.num));
s->values = av_calloc(inlink->channels * VAR_VARS_NB, sizeof(double));
if (!s->values)
return AVERROR(ENOMEM);