[FFmpeg-cvslog] avcodec/gsmdec: reject unsupported msn audio modes

[Piotr Bandurski]

ffmpeg | branch: master | Piotr Bandurski <ami_stuff at o2.pl> | Tue Aug 13 23:09:24 2013 +0200| [1ee1a3d9f4e152b641f05d2be6dbe3f440485cca] | committer: Michael Niedermayer

avcodec/gsmdec: reject unsupported msn audio modes

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1ee1a3d9f4e152b641f05d2be6dbe3f440485cca
---

 libavcodec/gsmdec.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libavcodec/gsmdec.c b/libavcodec/gsmdec.c
index dc64267..5de6da4 100644
--- a/libavcodec/gsmdec.c
+++ b/libavcodec/gsmdec.c
@@ -34,6 +34,14 @@
 
 static av_cold int gsm_init(AVCodecContext *avctx)
 {
+    if (avctx->codec_tag == 0x0032 &&
+        avctx->bit_rate != 13000 &&
+        avctx->bit_rate != 17912 &&
+        avctx->bit_rate != 35824 &&
+        avctx->bit_rate != 71656) {
+        av_log(avctx, AV_LOG_ERROR, "Unsupported audio mode\n");
+        return AVERROR_PATCHWELCOME;
+    }
     avctx->channels       = 1;
     avctx->channel_layout = AV_CH_LAYOUT_MONO;
     if (!avctx->sample_rate)