diff --git a/revid/config/variables.go b/revid/config/variables.go
index 726faf16..b66ffc26 100644
--- a/revid/config/variables.go
+++ b/revid/config/variables.go
@@ -297,7 +297,7 @@ var Variables = []struct {
 	},
 	{
 		Name:  KeyInputCodec,
-		Type_: "enum:H264,H265,MJPEG,JPEG,PCM,ADPCM",
+		Type_: "enum:h264,h265,mjpeg,jpeg,pcm,adpcm",
 		Update: func(c *Config, v string) {
 			c.InputCodec = v
 		},
diff --git a/revid/pipeline.go b/revid/pipeline.go
index 097978e4..575516c5 100644
--- a/revid/pipeline.go
+++ b/revid/pipeline.go
@@ -227,7 +227,10 @@ func (r *Revid) setupPipeline(mtsEnc func(dst io.WriteCloser, rate float64) (io.
 	// as a destination.
 	if len(mtsSenders) != 0 {
 		mw := multiWriter(mtsSenders...)
-		e, _ := mtsEnc(mw, float64(r.cfg.FrameRate))
+		e, err := mtsEnc(mw, float64(r.cfg.FrameRate))
+		if err != nil {
+			return fmt.Errorf("error from setting up MTS encoder: %w", err)
+		}
 		encoders = append(encoders, e)
 	}
 
@@ -238,7 +241,7 @@ func (r *Revid) setupPipeline(mtsEnc func(dst io.WriteCloser, rate float64) (io.
 		mw := multiWriter(flvSenders...)
 		e, err := flvEnc(mw, int(r.cfg.FrameRate))
 		if err != nil {
-			return err
+			return fmt.Errorf("error from setting up FLV encoder: %w", err)
 		}
 		encoders = append(encoders, e)
 	}