1 files changed, 4 insertions, 0 deletions
diff --git a/encoder.h b/encoder.h
index 52c50ab..f68d51c 100644
--- a/encoder.h
+++ b/encoder.h
@@ -11,6 +11,8 @@
 class EncoderBase {
 	public:
 		typedef boost::shared_ptr<EncoderBase> p;
+		virtual ~EncoderBase() {}
+		
 		virtual size_t encode(const uint8_t *input, size_t input_size, uint8_t *output, size_t output_size) = 0;
 		virtual size_t flush(uint8_t *output, size_t output_size) = 0;
 };
@@ -19,9 +21,11 @@ class EncoderBase {
 class EncoderFilter : public boost::iostreams::multichar_input_filter {
 	private:
 		EncoderBase::p encoder;
+	
 	public:
 		typedef boost::shared_ptr<EncoderFilter> p;
 		EncoderFilter(EncoderBase::p encoder_);
+		
 		template<typename Source>
 		std::streamsize read(Source& src, char *s, std::streamsize n) {
 			char src_data[0x2000];