Don't crash when wav files have a 0 for bit per channel (sampleWidth)

I've seen this in a wav that has an audio format of MP3 (0x55)

diff --git a/taglib/riff/aiff/aiffproperties.cpp b/taglib/riff/aiff/aiffproperties.cpp
index 77c3d2776077044bff8e44c7b858d916330e285a..afb741b77ef664bd98b0658f0228f8d53e53c71b 100644 (file)
--- a/taglib/riff/aiff/aiffproperties.cpp
+++ b/taglib/riff/aiff/aiffproperties.cpp
@@ -149,5 +149,5 @@ void RIFF::AIFF::Properties::read(const ByteVector &data)
   double sampleRate = ConvertFromIeeeExtended(reinterpret_cast<unsigned char *>(data.mid(8, 10).data()));
   d->sampleRate     = sampleRate;
   d->bitrate        = (sampleRate * d->sampleWidth * d->channels) / 1000.0;
-  d->length         = sampleFrames / d->sampleRate;
+  d->length         = d->sampleRate > 0 ? sampleFrames / d->sampleRate : 0;
 }