On 1 April 2017 at 18:18, Michael Niedermayer <mich...@niedermayer.cc>
wrote:
> This avoids an integer overflow
> the solution matches oggparsevorbis.c and 45581ed15d2ad5955e24d809820c16
> 75da68f500
>
> Fixes: 700242
>
> Found-by: Thomas Guilbert <tguilb...@google.com>
> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> ---
> libavformat/oggparsedaala.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavformat/oggparsedaala.c b/libavformat/oggparsedaala.c
> index 89bda58994..ce65b2bd7a 100644
> --- a/libavformat/oggparsedaala.c
> +++ b/libavformat/oggparsedaala.c
> @@ -232,7 +232,7 @@ static int daala_packet(AVFormatContext *s, int idx)
> os->lastpts = os->lastdts = daala_gptopts(s, idx, os->granule,
> NULL) - duration;
> if(s->streams[idx]->start_time == AV_NOPTS_VALUE) {
> s->streams[idx]->start_time = os->lastpts;
> - if (s->streams[idx]->duration)
> + if (s->streams[idx]->duration != AV_NOPTS_VALUE)
> s->streams[idx]->duration -= s->streams[idx]->start_time;
> }
> }
> --
> 2.11.0
>
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>
LGTM, thanks
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