Merge commit 'd07aa3f0'

* commit 'd07aa3f0':
  riffdec: Add sanity checks for the sample rate
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/riffdec.c

@@ -130,6 +130,11 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
         if (size > 0)
             avio_skip(pb, size);
     }
+    if (codec->sample_rate <= 0) {
+        av_log(NULL, AV_LOG_ERROR,
+               "Invalid sample rate: %d\n", codec->sample_rate);
+        return AVERROR_INVALIDDATA;
+    }
     if (codec->codec_id == AV_CODEC_ID_AAC_LATM) {
         /* Channels and sample_rate values are those prior to applying SBR
          * and/or PS. */