Merged in improve-defaulting (pull request #153)

Improve defaulting

Approved-by: Alan Noble <anoble@gmail.com>

revid/config.go

@@ -186,15 +186,18 @@ func (c *Config) Validate(r *Revid) error {
 			c.Logger.Log(logger.Info, pkg+"defaulting frames per clip for rtmp out",
 				"framesPerClip", defaultFramesPerClip)
 			c.FramesPerClip = defaultFramesPerClip
+			c.Packetization = Flv
 		case NothingDefined:
 			c.Logger.Log(logger.Warning, pkg+"no output defined, defaulting", "output",
 				defaultOutput)
 			c.Outputs[i] = defaultOutput
+			c.Packetization = defaultPacketization
 			fallthrough
 		case Http, Rtp:
 			c.Logger.Log(logger.Info, pkg+"defaulting frames per clip for http out",
 				"framesPerClip", httpFramesPerClip)
 			c.FramesPerClip = httpFramesPerClip
+			c.Packetization = Mpegts
 		default:
 			return errors.New("bad output type defined in config")
 		}

revid/revid.go

@@ -51,8 +51,10 @@ import (
 
 // Ring buffer sizes and read/write timeouts.
 const (
-	ringBufferSize        = 1000
+	mtsRbSize        = 100
-	ringBufferElementSize = 150000
+	mtsRbElementSize = 150000
+	flvRbSize        = 1000
+	flvRbElementSize = 10000
 	writeTimeout     = 10 * time.Millisecond
 	readTimeout      = 10 * time.Millisecond
 )
@@ -141,11 +143,6 @@ type packer struct {
 // are deemed to be successful, although a successful
 // write may include a dropped frame.
 func (p *packer) Write(frame []byte) (int, error) {
-	if len(frame) > ringBufferElementSize {
-		p.owner.config.Logger.Log(logger.Warning, pkg+"frame was too big", "frame size", len(frame))
-		return len(frame), nil
-	}
-
 	if len(p.owner.destination) != 0 {
 		n, err := p.owner.buffer.Write(frame)
 		if err != nil {
@@ -226,7 +223,14 @@ func (r *Revid) reset(config Config) error {
 	}
 	r.config = config
 
-	r.buffer = ring.NewBuffer(ringBufferSize, ringBufferElementSize, writeTimeout)
+	// NB: currently we use two outputs that require the same packetization method
+	// so we only need to check first output, but this may change later.
+	switch r.config.Outputs[0] {
+	case Rtmp, FfmpegRtmp:
+		r.buffer = ring.NewBuffer(flvRbSize, flvRbElementSize, writeTimeout)
+	case Http, Rtp:
+		r.buffer = ring.NewBuffer(mtsRbSize, mtsRbElementSize, writeTimeout)
+	}
 
 	r.destination = r.destination[:0]
 	for _, typ := range r.config.Outputs {