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avfilter/avf_ahistogram: make use of av_rescale

This commit is contained in:
Paul B Mahol 2019-05-28 10:51:57 +02:00
parent d2e76a1f96
commit cd75396897

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@ -120,7 +120,7 @@ static int config_input(AVFilterLink *inlink)
AVFilterContext *ctx = inlink->dst;
AudioHistogramContext *s = ctx->priv;
s->nb_samples = FFMAX(1, ((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->dchannels = s->dmode == SINGLE ? 1 : inlink->channels;
s->shistogram = av_calloc(s->w, s->dchannels * sizeof(*s->shistogram));
if (!s->shistogram)