[FFmpeg-cvslog] ws_snd: make sure number of channels is 1

[Justin Ruggles]

ffmpeg | branch: release/0.8 | Justin Ruggles <justin.ruggles at gmail.com> | Mon Sep 12 09:44:21 2011 -0400| [857c7e122b102da5c635852a32ba067157575311] | committer: Michael Niedermayer

ws_snd: make sure number of channels is 1
(cherry picked from commit 6a818cb3ff2056d43361e5fd09e318cd2ca2a7b4)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=857c7e122b102da5c635852a32ba067157575311
---

 libavcodec/ws-snd1.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/libavcodec/ws-snd1.c b/libavcodec/ws-snd1.c
index 48414c7..f92c353 100644
--- a/libavcodec/ws-snd1.c
+++ b/libavcodec/ws-snd1.c
@@ -41,6 +41,11 @@ static av_cold int ws_snd_decode_init(AVCodecContext * avctx)
 {
 //    WSSNDContext *c = avctx->priv_data;
 
+    if (avctx->channels != 1) {
+        av_log_ask_for_sample(avctx, "unsupported number of channels\n");
+        return AVERROR(EINVAL);
+    }
+
     avctx->sample_fmt = AV_SAMPLE_FMT_U8;
     return 0;
 }