On Wed, Mar 21, 2012 at 01:34:28PM -0700, Alex Converse wrote:
> This prevents a SIGFPE later on.
> 
> Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
> CC: [email protected]
> ---
>  libavformat/xwma.c |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
> 
> diff --git a/libavformat/xwma.c b/libavformat/xwma.c
> index 2c6ee11..7b34b96 100644
> --- a/libavformat/xwma.c
> +++ b/libavformat/xwma.c
> @@ -115,6 +115,17 @@ static int xwma_read_header(AVFormatContext *s)
>          }
>      }
>  
> +    if (!st->codec->channels) {
> +        av_log(s, AV_LOG_WARNING, "Invalid channel count: %d\n",
> +               st->codec->channels);
> +        return AVERROR_INVALIDDATA;
> +    }
> +    if (!st->codec->bits_per_coded_sample) {
> +        av_log(s, AV_LOG_WARNING, "Invalid bits_per_coded_sample: %d\n",
> +               st->codec->bits_per_coded_sample);
> +        return AVERROR_INVALIDDATA;
> +    }
> +
>      /* set the sample rate */
>      avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
>  
> -- 

OK
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