On Thu, Sep 3, 2015 at 5:52 AM, Michael Niedermayer <michae...@gmx.at> wrote:
> From: Michael Niedermayer <mich...@niedermayer.cc>
>
> Fixes potential division by zero
> Fixes: CID1292295
>
> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> ---
> libavfilter/avf_showwaves.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/libavfilter/avf_showwaves.c b/libavfilter/avf_showwaves.c
> index 57a6b2e..a19acf5 100644
> --- a/libavfilter/avf_showwaves.c
> +++ b/libavfilter/avf_showwaves.c
> @@ -203,6 +203,11 @@ static int push_single_pic(AVFilterLink *outlink)
> int col = 0;
> int64_t *sum = showwaves->sum;
>
> + if (max_samples == 0) {
> + av_log(ctx, AV_LOG_ERROR, "Too few samples\n");
> + return AVERROR(EINVAL);
> + }
> +
> av_log(ctx, AV_LOG_DEBUG, "Create frame averaging %"PRId64" samples per
> column\n", max_samples);
>
> memset(sum, 0, nb_channels);
> --
> 1.7.9.5
LGTM
>
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