1 files changed, 1 insertions, 0 deletions
diff --git a/encoder.h b/encoder.h
index 14ecfeb..52c50ab 100644
--- a/encoder.h
+++ b/encoder.h
@@ -15,6 +15,7 @@ class EncoderBase {
 		virtual size_t flush(uint8_t *output, size_t output_size) = 0;
 };
 
+//! Input filter to hold an encoder in a filter chain.
 class EncoderFilter : public boost::iostreams::multichar_input_filter {
 	private:
 		EncoderBase::p encoder;