revid: remove ShowWindows variable

revid/config/config.go

@@ -27,8 +27,6 @@ package config
 
 import (
 	"errors"
-	"fmt"
-	"os/exec"
 	"time"
 
 	"bitbucket.org/ausocean/av/codec/codecutil"
@@ -136,9 +134,6 @@ const (
 	FilterBasic
 )
 
-// OS names
-const raspian = "Raspbian GNU/Linux"
-
 // Config provides parameters relevant to a revid instance. A new config must
 // be passed to the constructor. Default values for these fields are defined
 // as consts above.
@@ -259,10 +254,6 @@ type Config struct {
 	// of the file.
 	Exposure string
 
-	// ShowWindows enables or disables the display of windows used for debugging
-	// motion filters.
-	ShowWindows bool
-
 	// AutoWhiteBalance defines the auto white balance mode used by Raspivid input.
 	// Valid modes are defined in the exported []string AutoWhiteBalanceModes
 	// defined at the start of the file.
@@ -370,7 +361,6 @@ var TypeData = map[string]string{
 	"RTMPURL":           "string",
 	"RTPAddress":        "string",
 	"Saturation":        "int",
-	"ShowWindows":       "bool",
 	"VBRBitrate":        "int",
 	"VBRQuality":        "enum:standard,fair,good,great,excellent",
 	"VerticalFlip":      "bool",
@@ -554,17 +544,6 @@ func (c *Config) Validate() error {
 		c.MotionDownscaling = defaultMotionDownscaling
 	}
 
-	if c.ShowWindows {
-		os, err := osName()
-		if err != nil {
-			return err
-		}
-		if os == raspian {
-			c.Logger.Log(logger.Info, pkg+"ShowWindows disabled on Raspbian GNU/Linux", "ShowWindows", false)
-			c.ShowWindows = false
-		}
-	}
-
 	if c.FileFPS <= 0 || (c.FileFPS > 0 && c.Input != InputFile) {
 		c.logInvalidField("FileFPS", defaultFileFPS)
 		c.FileFPS = defaultFileFPS
@@ -573,15 +552,6 @@ func (c *Config) Validate() error {
 	return nil
 }
 
-func osName() (string, error) {
-	out, err := exec.Command("grep", "^NAME=", "/etc/os-release").Output()
-	if err != nil {
-		return "", fmt.Errorf("could not get OS name: %w", err)
-	}
-
-	return string(out)[6 : len(out)-2], nil
-}
-
 func (c *Config) logInvalidField(name string, def interface{}) {
 	c.Logger.Log(logger.Info, pkg+name+" bad or unset, defaulting", name, def)
 }

revid/revid.go

@@ -804,16 +804,6 @@ func (r *Revid) Update(vars map[string]string) error {
 				break
 			}
 			r.cfg.CameraChan = v
-		case "ShowWindows":
-			switch strings.ToLower(value) {
-			case "true":
-				r.cfg.ShowWindows = true
-			case "false":
-				r.cfg.ShowWindows = false
-			default:
-				r.cfg.Logger.Log(logger.Warning, pkg+"invalid ShowWindows var", "value", value)
-				break
-			}
 		case "MinFPS":
 			v, err := strconv.ParseFloat(value, 64)
 			if err != nil {