generator,parser: remove Get prefix from read accessors

Also make user-facing chan exposure a little safer.

generator/flv_generator.go

@@ -62,15 +62,15 @@ type flvGenerator struct {
 	isGenerating bool
 }
 
-// GetInputChan returns the input channel to the generator. This is where the
+// InputChan returns the input channel to the generator. This is where the
 // raw data frames are entered into the generator
-func (g *flvGenerator) GetInputChan() chan []byte {
+func (g *flvGenerator) InputChan() chan []byte {
 	return g.inputChan
 }
 
-// GetOutputChan retuns the output chan of the generator - this is where the
+// OutputChan retuns the output chan of the generator - this is where the
 // flv packets (more specifically tags) are outputted.
-func (g *flvGenerator) GetOutputChan() chan []byte {
+func (g *flvGenerator) OutputChan() <-chan []byte {
 	return g.outputChan
 }
 

generator/generator.go

@@ -28,8 +28,8 @@ LICENSE
 package generator
 
 type Generator interface {
-	GetInputChan() chan []byte
-	GetOutputChan() chan []byte
+	InputChan() chan []byte
+	OutputChan() <-chan []byte
 	Start()
 	Stop()
 }

generator/mpegts_generator.go

@@ -86,15 +86,15 @@ type tsGenerator struct {
 	isGenerating    bool
 }
 
-// getInputChan returns a handle to the nalInputChan (inputChan) so that nal units
+// InputChan returns a handle to the nalInputChan (inputChan) so that nal units
 // can be passed to the generator and processed
-func (g *tsGenerator) GetInputChan() chan []byte {
+func (g *tsGenerator) InputChan() chan []byte {
 	return g.nalInputChan
 }
 
-// GetOutputChan returns a handle to the generator output chan where the mpegts
+// OutputChan returns a handle to the generator output chan where the mpegts
 // packets will show up once ready to go
-func (g *tsGenerator) GetOutputChan() chan []byte {
+func (g *tsGenerator) OutputChan() <-chan []byte {
 	return g.outputChan
 }
 

parser/h264.go

@@ -77,22 +77,22 @@ func (p *h264Parser) SetDelay(delay uint) {
 	p.delay = delay
 }
 
-// GetInputChan returns a handle to the input channel of the parser
-func (p *h264Parser) GetInputChan() chan byte {
+// InputChan returns a handle to the input channel of the parser
+func (p *h264Parser) InputChan() chan byte {
 	return p.inputChan
 }
 
-// GetOutputChan returns a handle to the output chan of the parser
-func (p *h264Parser) GetOutputChan() chan []byte {
+// OutputChan returns a handle to the output chan of the parser
+func (p *h264Parser) OutputChan() <-chan []byte {
 	return p.userOutputChanRef
 }
 
 // SetOutputChan sets the parser output chan to the passed output chan. This is
 // useful if we want the parser output to go directly to a generator of some sort
 // for packetization.
-func (p *h264Parser) SetOutputChan(aChan chan []byte) {
-	p.parserOutputChanRef = aChan
-	p.userOutputChanRef = aChan
+func (p *h264Parser) SetOutputChan(o chan []byte) {
+	p.parserOutputChanRef = o
+	p.userOutputChanRef = o
 }
 
 // parse interprets an incoming h264 stream and extracts individual frames

parser/mjpeg.go

@@ -57,17 +57,17 @@ func (p *mjpegParser) SetDelay(delay uint) {
 	p.delay = delay
 }
 
-func (p *mjpegParser) GetInputChan() chan byte {
+func (p *mjpegParser) InputChan() chan byte {
 	return p.inputChan
 }
 
-func (p *mjpegParser) GetOutputChan() chan []byte {
+func (p *mjpegParser) OutputChan() <-chan []byte {
 	return p.userOutputChanRef
 }
 
-func (p *mjpegParser) SetOutputChan(aChan chan []byte) {
-	p.parserOutputChanRef = aChan
-	p.userOutputChanRef = aChan
+func (p *mjpegParser) SetOutputChan(o chan []byte) {
+	p.parserOutputChanRef = o
+	p.userOutputChanRef = o
 }
 
 func (p *mjpegParser) parse() {

parser/parser.go

@@ -43,8 +43,8 @@ var (
 type Parser interface {
 	Stop()
 	Start()
-	GetInputChan() chan byte
-	GetOutputChan() chan []byte
+	InputChan() chan byte
+	OutputChan() <-chan []byte
 	SetOutputChan(achan chan []byte)
 	SetDelay(delay uint)
 }

revid/revid.go

@@ -203,7 +203,7 @@ func (r *Revid) reset(config Config) error {
 	// We have packetization of some sort, so we want to send data to Generator
 	// to perform packetization
 	r.getFrame = r.getFramePacketization
-	r.parser.SetOutputChan(r.generator.GetInputChan())
+	r.parser.SetOutputChan(r.generator.InputChan())
 
 	return nil
 }
@@ -300,7 +300,7 @@ func (r *Revid) getFrameNoPacketization() []byte {
 // getFramePacketization gets a frame from the generators output chan - the
 // the generator being an mpegts or flv generator depending on the config
 func (r *Revid) getFramePacketization() []byte {
-	return <-r.generator.GetOutputChan()
+	return <-r.generator.OutputChan()
 }
 
 // packClips takes data segments; whether that be tsPackets or mjpeg frames and
@@ -312,7 +312,7 @@ func (r *Revid) packClips() {
 		select {
 		// TODO: This is temporary, need to work out how to make this work
 		// for cases when there is not packetisation.
-		case frame := <-r.generator.GetOutputChan():
+		case frame := <-r.generator.OutputChan():
 			lenOfFrame := len(frame)
 			if lenOfFrame > ringBufferElementSize {
 				r.Log(Warning, fmt.Sprintf("Frame was too big: %v bytes, getting another one!", lenOfFrame))
@@ -518,7 +518,7 @@ func (r *Revid) readCamera() {
 			r.Log(Error, "No data from camera!")
 			time.Sleep(cameraRetryPeriod)
 		default:
-			r.parser.GetInputChan() <- data[0]
+			r.parser.InputChan() <- data[0]
 		}
 	}
 	r.Log(Info, "Not trying to read from camera anymore!")
@@ -547,7 +547,7 @@ func (r *Revid) readFile() error {
 		return err
 	}
 	for i := range data {
-		r.parser.GetInputChan() <- data[i]
+		r.parser.InputChan() <- data[i]
 	}
 	r.inputFile.Close()
 	return nil