On 05.10.2016 21:37, Jon Toohill wrote:
> ---
> libavcodec/libmp3lame.c | 26 +++++++++++++++++++++++++-
> 1 file changed, 25 insertions(+), 1 deletion(-)
>
> diff --git a/libavcodec/libmp3lame.c b/libavcodec/libmp3lame.c
> index 5642264..b3ba0d8 100644
> --- a/libavcodec/libmp3lame.c
> +++ b/libavcodec/libmp3lame.c
[...]
> @@ -269,6 +270,29 @@ static int mp3lame_encode_frame(AVCodecContext *avctx,
> AVPacket *avpkt,
> ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
> &avpkt->duration);
>
> + discard_padding = avctx->frame_size - avpkt->duration;
> + // Check if subtraction resulted in an overflow
> + if ((discard_padding < avctx->frame_size) != (avpkt->duration > 0)) {
> + av_packet_unref(avpkt);
> + av_free(avpkt);
It would be nice to have an av_log here reporting the problem.
Otherwise patch LGTM.
Best regards,
Andreas
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