[FFmpeg-cvslog] adxdec: validate sample_rate

[Andreas Cadhalpun]

ffmpeg | branch: master | Andreas Cadhalpun <Andreas.Cadhalpun at googlemail.com> | Sun Oct 23 15:47:40 2016 +0200| [2eb05eaa682ec49eade91e358ace4e1415695686] | committer: Andreas Cadhalpun

adxdec: validate sample_rate

A negative sample rate doesn't make sense and triggers assertions in
av_rescale_rnd.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun at googlemail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2eb05eaa682ec49eade91e358ace4e1415695686
---

 libavformat/adxdec.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/adxdec.c b/libavformat/adxdec.c
index cf44531..0315ecb 100644
--- a/libavformat/adxdec.c
+++ b/libavformat/adxdec.c
@@ -109,6 +109,11 @@ static int adx_read_header(AVFormatContext *s)
         return AVERROR_INVALIDDATA;
     }
 
+    if (par->sample_rate <= 0) {
+        av_log(s, AV_LOG_ERROR, "Invalid sample rate %d\n", par->sample_rate);
+        return AVERROR_INVALIDDATA;
+    }
+
     par->codec_type  = AVMEDIA_TYPE_AUDIO;
     par->codec_id    = s->iformat->raw_codec_id;
     par->bit_rate    = par->sample_rate * par->channels * BLOCK_SIZE * 8LL / BLOCK_SAMPLES;