vidforward: use consistent revid construction function

cmd/vidforward/main.go

@@ -39,10 +39,8 @@ import (
 	"time"
 
 	"bitbucket.org/ausocean/av/cmd/vidforward/global"
-	"bitbucket.org/ausocean/av/codec/codecutil"
 	"bitbucket.org/ausocean/av/container/mts"
 	"bitbucket.org/ausocean/av/revid"
-	"bitbucket.org/ausocean/av/revid/config"
 	"bitbucket.org/ausocean/utils/logging"
 	"gopkg.in/natefinch/lumberjack.v2"
 )
@@ -281,22 +279,8 @@ func (m *broadcastManager) createOrUpdate(broadcast Broadcast) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 
-	var outputs []uint8
-	for _ = range broadcast.urls {
-		outputs = append(outputs, config.OutputRTMP)
-	}
-
-	cfg := config.Config{
-		Logger:     m.log,
-		Input:      config.InputManual,
-		InputCodec: codecutil.H264_AU,
-		Outputs:    outputs,
-		RTMPURL:    broadcast.urls,
-		LogLevel:   logging.Debug,
-	}
-
 	var err error
-	broadcast.rv, err = revid.New(cfg, nil)
+	broadcast.rv, err = newRevid(m.log, broadcast.urls)
 	if err != nil {
 		return fmt.Errorf("could not initialise revid: %w", err)
 	}

cmd/vidforward/utils.go

@@ -38,15 +38,20 @@ import (
 var loggingLevel = logging.Info
 
 func newRevid(log logging.Logger, urls []string) (*revid.Revid, error) {
+	var outputs []uint8
+	for _ = range urls {
+		outputs = append(outputs, config.OutputRTMP)
+	}
+	cfg := config.Config{
+		Logger:     log,
+		Input:      config.InputManual,
+		InputCodec: codecutil.H264_AU,
+		Outputs:    outputs,
+		RTMPURL:    urls,
+		LogLevel:   logging.Debug,
+	}
 	return revid.New(
-		config.Config{
+		cfg, nil)
-			Logger:     log,
-			Input:      config.InputManual,
-			InputCodec: codecutil.H264_AU,
-			Outputs:    []uint8{config.OutputRTMP},
-			RTMPURL:    urls,
-			LogLevel:   loggingLevel,
-		}, nil)
 }
 
 // writeError logs an error and writes to w in JSON format.