diff --git a/revid/mtsSender_test.go b/revid/mtsSender_test.go
index c96613cb..c4a4f1ab 100644
--- a/revid/mtsSender_test.go
+++ b/revid/mtsSender_test.go
@@ -51,14 +51,14 @@ const (
 	rTimeout      = 10 * time.Millisecond
 )
 
-type testSender struct {
+type sender struct {
 	Buf       [][]byte
 	tstDiscon bool
 	disconAt  int
 	curPktNo  int
 }
 
-func (ts *testSender) send(d []byte) error {
+func (ts *sender) send(d []byte) error {
 	if ts.tstDiscon && ts.curPktNo == ts.disconAt {
 		ts.curPktNo++
 		return errors.New("could not send")
@@ -105,7 +105,7 @@ func TestSegment(t *testing.T) {
 	mts.Meta = meta.New()
 	// Create ringbuffer tst sender, loadsender and the mpegts encoder
 	rb := ring.NewBuffer(rbSize, rbElementSize, wTimeout)
-	tstSender := &testSender{}
+	tstSender := &sender{}
 	loadSender := newMtsSender(tstSender, log)
 	packer := &tstPacker{rb: rb}
 	encoder := mts.NewEncoder(packer, 25)
@@ -195,7 +195,7 @@ func TestSendFailDiscontinuity(t *testing.T) {
 	// Create ringbuffer tst sender, loadsender and the mpegts encoder
 	rb := ring.NewBuffer(rbSize, rbElementSize, wTimeout)
 	const disconClipNo = 3
-	tstSender := &testSender{tstDiscon: true, disconAt: disconClipNo}
+	tstSender := &sender{tstDiscon: true, disconAt: disconClipNo}
 	loadSender := newMtsSender(tstSender, log)
 	packer := tstPacker{rb: rb}
 	encoder := mts.NewEncoder(&packer, 25)
diff --git a/revid/senders.go b/revid/senders.go
index 03b4afc6..9c8619b3 100644
--- a/revid/senders.go
+++ b/revid/senders.go
@@ -45,7 +45,7 @@ import (
 	"github.com/Comcast/gots/packet"
 )
 
-type sender interface {
+type Sender interface {
 	send(d []byte) error
 }
 
@@ -132,7 +132,7 @@ func (s *fileSender) close() error {
 // clips based on PSI. It also fixes accounts for discontinuities by setting
 // the discontinuity indicator for the first packet of a clip.
 type mtsSender struct {
-	sender    sender
+	sender    Sender
 	buf       []byte
 	next      []byte
 	pkt       [mts.PacketSize]byte
@@ -144,7 +144,7 @@ type mtsSender struct {
 }
 
 // newmtsSender returns a new mtsSender.
-func newMtsSender(s sender, log func(lvl int8, msg string, args ...interface{})) *mtsSender {
+func newMtsSender(s Sender, log func(lvl int8, msg string, args ...interface{})) *mtsSender {
 	return &mtsSender{
 		sender:   s,
 		repairer: mts.NewDiscontinuityRepairer(),