fixed some warnings

matroska/ebmlelement.cpp

@@ -106,7 +106,7 @@ void EbmlElement::internalParse()
         throw InvalidDataException();
     }
     // read size into buffer
-    *reinterpret_cast<dataSizeType *>(buf) = 0; // reset buffer
+    memset(buf, 0, sizeof(dataSizeType)); // reset buffer
     reader().read(buf + (GenericFileElement<implementationType>::maximumSizeLengthSupported() - m_sizeLength), m_sizeLength);
     *(buf + (GenericFileElement<implementationType>::maximumSizeLengthSupported() - m_sizeLength)) ^= mask; // xor the first byte in buffer which has been read from the file with mask
     m_dataSize = ConversionUtilities::BE::toUInt64(buf);

mediafileinfo.cpp

@@ -133,21 +133,23 @@ void MediaFileInfo::parseContainerFormat()
     m_containerOffset = 0;
     // read signatrue
     char buff[16];
+    const char *const buffEnd = buff + sizeof(buff), *buffOffset;
 startParsingSignature:
     if(size() - m_containerOffset >= 16) {
         stream().seekg(m_containerOffset, ios_base::beg);
         stream().read(buff, sizeof(buff));
         // skip zero bytes/padding
-        if(!(*reinterpret_cast<uint32 *>(buff))) {
+        size_t bytesSkipped = 0;
+        for(buffOffset = buff; buffOffset != buffEnd && !(*buffOffset); ++buffOffset, ++bytesSkipped);
+        if(bytesSkipped >= 4) {
+            m_containerOffset += bytesSkipped;
             // give up after 0x100 bytes
-            if(m_paddingSize >= 0x100u) {
+            if((m_paddingSize += bytesSkipped) >= 0x100u) {
                 m_containerParsed = true;
                 m_containerFormat = ContainerFormat::Unknown;
                 return;
             }
-            m_containerOffset += sizeof(uint32); // set the container offset
-            m_paddingSize += sizeof(uint32);
-            goto startParsingSignature; // read signature again
+            goto startParsingSignature;
         }
         if(m_paddingSize) {
             addNotification(NotificationType::Warning, ConversionUtilities::numberToString(m_paddingSize) + " zero-bytes skipped at the beginning of the file.", context);

mpegaudio/mpegaudioframe.cpp

@@ -19,7 +19,7 @@ const char *mpegChannelModeString(MpegChannelMode channelMode)
     case MpegChannelMode::JointStereo: return "2 channels: joint stereo";
     case MpegChannelMode::DualChannel: return "2 channels: dual channel";
     case MpegChannelMode::SingleChannel: return "1 channel: single channel";
-    case MpegChannelMode::Unspecifed: return nullptr;
+    default: return nullptr;
     }
 }