1 files changed, 4 insertions, 0 deletions
diff --git a/decoder.h b/decoder.h
index 25dbe56..9faabc1 100644
--- a/decoder.h
+++ b/decoder.h
@@ -11,15 +11,19 @@ class DecoderBase {
 	public:
 		typedef boost::shared_ptr<DecoderBase> p;
 		virtual size_t decode(const uint8_t *input, size_t input_size, uint8_t *output, size_t output_size) = 0;
+		virtual ~DecoderBase() {}
+		
 };
 
 //! Input filter to hold a decoder in a filter chain.
 class DecoderFilter : public boost::iostreams::multichar_input_filter {
 	private:
 		DecoderBase::p decoder;
+	
 	public:
 		typedef boost::shared_ptr<DecoderFilter> p;
 		DecoderFilter(DecoderBase::p decoder_);
+		
 		template<typename Source>
 		std::streamsize read(Source& src, char *s, std::streamsize n) {
 			char src_data[0x2000];