revid: created multiSender retry field and setting based on outputs

Added a retry field for the multiSender which will be used to decide whether to retry sending or not. This is being set true if we have a http sender and no other senders.

revid/revid.go

@@ -188,9 +188,11 @@ func (r *Revid) reset(config Config) error {
 	// to mtsSenders if the output requires MPEGTS encoding, or flvSenders if the
 	// output requires FLV encoding.
 	var sender loadSender
+	var retry bool
 	for _, out := range r.config.Outputs {
 		switch out {
 		case Http:
+			retry = true
 			sender = newMtsSender(newMinimalHttpSender(r.ns, r.config.Logger.Log), nil)
 		case Rtp:
 			sender, err = newRtpSender(r.config.RtpAddress, r.config.Logger.Log, r.config.FrameRate)
@@ -214,7 +216,10 @@ func (r *Revid) reset(config Config) error {
 	// encoder to revid's encoder slice, and give this encoder the mtsSenders
 	// as a destination.
 	if len(mtsSenders) != 0 {
-		ms := newMultiSender(r, mtsSenders)
+		if len(mtsSenders) != 1 && len(flvSenders) != 0 {
+			retry = false
+		}
+		ms := newMultiSender(r, mtsSenders, retry)
 		e := mts.NewEncoder(ms, float64(r.config.FrameRate))
 		r.encoder = append(r.encoder, e)
 	}
@@ -223,7 +228,7 @@ func (r *Revid) reset(config Config) error {
 	// encoder to revid's encoder slice, and give this encoder the flvSenders
 	// as a destination.
 	if len(flvSenders) != 0 {
-		ms := newMultiSender(r, flvSenders)
+		ms := newMultiSender(r, flvSenders, false)
 		e, err := flv.NewEncoder(ms, true, true, int(r.config.FrameRate))
 		if err != nil {
 			return err

revid/senders.go

@@ -61,8 +61,8 @@ type multiSender struct {
 }
 
 // newMultiSender returns a pointer to a new multiSender.
-func newMultiSender(owner *Revid, senders []loadSender) *multiSender {
-	return &multiSender{owner: owner, senders: senders}
+func newMultiSender(owner *Revid, senders []loadSender, retry bool) *multiSender {
+	return &multiSender{owner: owner, senders: senders, retry: retry}
 }
 
 // Write implements io.Writer. The written slice will be sent to each loadSender