diff --git a/pkg/flexfec/flexfec_encoder.go b/pkg/flexfec/flexfec_encoder.go
index 8c6913ad..0af69141 100644
--- a/pkg/flexfec/flexfec_encoder.go
+++ b/pkg/flexfec/flexfec_encoder.go
@@ -13,10 +13,14 @@ import (
 )
 
 const (
+	// BaseRtpHeaderSize represents the minium RTP packet header size in bytes.
 	BaseRtpHeaderSize = 12
+	// BaseFecHeaderSize represents the minium FEC payload's header size including the
+	// required first mask.
 	BaseFecHeaderSize = 12
 )
 
+// FlexFecEncoder implements the Fec encoding mechanism for the "Flex" variant of FlexFec.
 type FlexFecEncoder struct {
 	baseSN      uint16
 	payloadType uint8
@@ -24,6 +28,7 @@ type FlexFecEncoder struct {
 	coverage    *ProtectionCoverage
 }
 
+// NewFlexFecEncoder returns a new FlexFecEncer.
 func NewFlexFecEncoder(baseSN uint16, payloadType uint8, ssrc uint32) *FlexFecEncoder {
 	return &FlexFecEncoder{
 		baseSN:      baseSN,
@@ -33,8 +38,9 @@ func NewFlexFecEncoder(baseSN uint16, payloadType uint8, ssrc uint32) *FlexFecEn
 	}
 }
 
-// Returns the array of FEC packets protecting mediaPkts specified as parameter.
-// Encoding will be skipped if there are missing Media packets.
+// EncodeFec returns a list of generated RTP packets with FEC payloads that protect the specified mediaPackets.
+// This method does not account for missing RTP packets in the mediaPackets array nor does it account for
+// them being passed out of order.
 func (flex *FlexFecEncoder) EncodeFec(mediaPackets []rtp.Packet, numFecPackets uint32) []rtp.Packet {
 	// Start by defining which FEC packets cover which media packets
 	if flex.coverage == nil {
diff --git a/pkg/flexfec/util/bitarray.go b/pkg/flexfec/util/bitarray.go
index ad1fdcdf..d24efc20 100644
--- a/pkg/flexfec/util/bitarray.go
+++ b/pkg/flexfec/util/bitarray.go
@@ -12,7 +12,7 @@ type BitArray struct {
 // NewBitArray returns a new BitArray. It takes sizeBits as parameter which represents
 // the size of the underlying bitmask.
 func NewBitArray(sizeBits uint32) BitArray {
-	sizeBytes := uint32(0)
+	var sizeBytes uint32
 	if sizeBits%8 == 0 {
 		sizeBytes = sizeBits / 8
 	} else {
diff --git a/pkg/flexfec/util/media_packet_iterator.go b/pkg/flexfec/util/media_packet_iterator.go
index 42a643bf..3099a39f 100644
--- a/pkg/flexfec/util/media_packet_iterator.go
+++ b/pkg/flexfec/util/media_packet_iterator.go
@@ -44,6 +44,7 @@ func (m *MediaPacketIterator) Next() *rtp.Packet {
 	return &packet
 }
 
+// First returns the first media packet to iterate through.
 func (m *MediaPacketIterator) First() *rtp.Packet {
 	return &m.mediaPackets[0]
 }