[FFmpeg-devel] [PATCH] avcodec/libx265: Fix integer overflow in computation of max and avg bitrate

[lance.lmwang at gmail.com]

On Mon, Jun 08, 2020 at 11:02:38PM +0800, lance.lmwang at gmail.com wrote:
> From: Limin Wang <lance.lmwang at gmail.com>
> 
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavcodec/libx265.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c
> index f560d7f62f..686c205b6b 100644
> --- a/libavcodec/libx265.c
> +++ b/libavcodec/libx265.c
> @@ -310,8 +310,8 @@ static av_cold int libx265_encode_init(AVCodecContext *avctx)
>      if (!cpb_props)
>          return AVERROR(ENOMEM);
>      cpb_props->buffer_size = ctx->params->rc.vbvBufferSize * 1000;
> -    cpb_props->max_bitrate = ctx->params->rc.vbvMaxBitrate * 1000;
> -    cpb_props->avg_bitrate = ctx->params->rc.bitrate       * 1000;
> +    cpb_props->max_bitrate = ctx->params->rc.vbvMaxBitrate * 1000LL;
> +    cpb_props->avg_bitrate = ctx->params->rc.bitrate       * 1000LL;
>  
>      if (!(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER))
>          ctx->params->bRepeatHeaders = 1;
> -- 
> 2.21.0
> 

ping for review.


-- 
Thanks,
Limin Wang