@@ -180,10 +180,7 @@ static int request_frame(AVFilterLink *outlink)

     /* flush the lavr delay buffer */

     if (ret == AVERROR_EOF && s->avr) {

         AVFrame *frame;

-        int nb_samples = av_rescale_rnd(avresample_get_delay(s->avr),

-                                        outlink->sample_rate,

-                                        ctx->inputs[0]->sample_rate,

-                                        AV_ROUND_UP);

+        int nb_samples = avresample_get_out_samples(s->avr, 0);

         if (!nb_samples)

             return ret;

@@ -219,9 +216,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)

         /* maximum possible samples lavr can output */

         delay      = avresample_get_delay(s->avr);

-        nb_samples = av_rescale_rnd(in->nb_samples + delay,

-                                    outlink->sample_rate, inlink->sample_rate,

-                                    AV_ROUND_UP);

+        nb_samples = avresample_get_out_samples(s->avr, in->nb_samples);

         out = ff_get_audio_buffer(outlink, nb_samples);

         if (!out) {