[FFmpeg-cvslog] atrac1: validate number of channels

[Justin Ruggles]

ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Fri Oct 14 00:24:50 2011 -0400| [bff5b2c1ca1290ea30587ff2f76171f9e3854872] | committer: Justin Ruggles

atrac1: validate number of channels

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bff5b2c1ca1290ea30587ff2f76171f9e3854872
---

 libavcodec/atrac1.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/libavcodec/atrac1.c b/libavcodec/atrac1.c
index 4647e0c..1ba580c 100644
--- a/libavcodec/atrac1.c
+++ b/libavcodec/atrac1.c
@@ -332,6 +332,11 @@ static av_cold int atrac1_decode_init(AVCodecContext *avctx)
 
     avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
 
+    if (avctx->channels < 1 || avctx->channels > AT1_MAX_CHANNELS) {
+        av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %d\n",
+               avctx->channels);
+        return AVERROR(EINVAL);
+    }
     q->channels = avctx->channels;
 
     /* Init the mdct transforms */