From ea1136baafb1fe271cb56c3f4d7bff0267e3c70f Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Wed, 6 Mar 2013 09:58:00 +0100 Subject: [PATCH] wmadec: require block_align to be set. Avoids an infinite loop in the calling programs with decoder not consuming any input and not returning output. CC:libav-stable@libav.org --- libavcodec/wmadec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c index 14a1521b1f..dbefbe0886 100644 --- a/libavcodec/wmadec.c +++ b/libavcodec/wmadec.c @@ -72,6 +72,11 @@ static int wma_decode_init(AVCodecContext * avctx) int i, flags2; uint8_t *extradata; + if (!avctx->block_align) { + av_log(avctx, AV_LOG_ERROR, "block_align is not set\n"); + return AVERROR(EINVAL); + } + s->avctx = avctx; /* extract flag infos */