stream/mts: improved and added commenting

stream/mts/encoder.go

@@ -168,6 +168,10 @@ const (
 	hasPTS = 0x2
 )
 
+// TimeBasedPsi allows for the setting of the PSI writing method, therefore, if
+// PSI is written based on some time duration, or based on a packet count.
+// If b is true, then time based PSI is used, otherwise the PSI is written
+// every sendCount.
 func (e *Encoder) TimeBasedPsi(b bool, sendCount int) {
 	e.timeBasedPsi = b
 	e.psiSendCount = sendCount

stream/mts/mpegts.go

@@ -62,9 +62,9 @@ const (
 	AdaptationFieldsIdx        = AdaptationIdx + 1 // Adaptation field index is the index of the adaptation fields.
 	DefaultAdaptationSize      = 2                 // Default size of the adaptation field.
 	AdaptationControlMask      = 0x30              // Mask for the adaptation field control in octet 3.
-	DefaultAdaptationBodySize  = 1
-	DiscontinuityIndicatorMask = 0x80
-	DiscontinuityIndicatorIdx  = AdaptationIdx + 1
+	DefaultAdaptationBodySize  = 1                 // Default size of the adaptation field body.
+	DiscontinuityIndicatorMask = 0x80              // Mask for the discontinuity indicator at the discontinuity indicator idk.
+	DiscontinuityIndicatorIdx  = AdaptationIdx + 1 // The index at which the discontinuity indicator is found in an MTS packet.
 )
 
 // TODO: make this better - currently doesn't make sense.