On Fri, 27 Jan 2017 15:09:28 +0300
Александр Слободенюк <alexander.sloboden...@bramtech.ru> wrote:
> From 8d4c7c25674f1967d9ffab69b7ef15381df42ca8 Mon Sep 17 00:00:00 2001
> From: Aleksandr Slobodeniuk <alen...@yandex.ru>
> Date: Fri, 27 Jan 2017 14:57:30 +0300
> Subject: [PATCH] avfilter/showwavespic : case of empty audio stream, fixes
> ticket 6107
>
> ---
> libavfilter/avf_showspectrum.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/libavfilter/avf_showspectrum.c b/libavfilter/avf_showspectrum.c
> index 8776668..b422216 100644
> --- a/libavfilter/avf_showspectrum.c
> +++ b/libavfilter/avf_showspectrum.c
> @@ -1032,6 +1032,11 @@ static int showspectrumpic_request_frame(AVFilterLink
> *outlink)
> int ch, spf, spb;
> AVFrame *fin;
>
> + if (samples == 0) {
> + av_log(ctx, AV_LOG_ERROR, "Too few samples\n");
> + return AVERROR(EINVAL);
> + }
> +
> spf = s->win_size * (samples / ((s->win_size * sz) * ceil(samples /
> (float)(s->win_size * sz))));
> spb = (samples / (spf * sz)) * spf;
>
Any reason why it should error, instead of returning nothing?
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