Move ffmpeg validation to main

cmd/main.go

@@ -4,6 +4,7 @@ import (
 	"flag"
 	"fmt"
 	"os"
+	"os/exec"
 	"os/signal"
 	"regexp"
 	"strings"
@@ -78,6 +79,12 @@ func main() {
 
 	log.Infof("starting proxytv with config file: %s", *configPath)
 
+	if config.UseFFMPEG {
+		if _, err := exec.LookPath("ffmpeg"); err != nil {
+			log.Fatalf("ffmpeg is enabled but not found in PATH: %v", err)
+		}
+	}
+
 	provider, err := proxytv.NewProvider(config)
 	if err != nil {
 		log.Fatalf("failed to create provider: %v", err)

config.go

@@ -3,7 +3,6 @@ package proxytv
 import (
 	"fmt"
 	"os"
-	"os/exec"
 	"regexp"
 	"time"
 
@@ -30,8 +29,9 @@ type Config struct {
 	ListenAddress string `yaml:"listenAddress,omitempty" default:":6078"`
 	ServerAddress string `yaml:"serverAddress"`
 
-	UseFFMPEG  bool `yaml:"ffmpeg,omitempty" default:"true"`
-	MaxStreams int  `yaml:"maxStreams,omitempty" default:"1"`
+	UseFFMPEG    bool
+	UseFFMPEGPtr *bool `yaml:"ffmpeg,omitempty" default:"true"`
+	MaxStreams   int   `yaml:"maxStreams,omitempty" default:"1"`
 
 	RefreshInterval    time.Duration
 	RefreshIntervalStr string `yaml:"refreshInterval,omitempty" default:"12h"`
@@ -57,6 +57,8 @@ func LoadConfig(path string) (*Config, error) {
 		return nil, err
 	}
 
+	config.UseFFMPEG = *config.UseFFMPEGPtr
+
 	config.RefreshInterval, err = time.ParseDuration(config.RefreshIntervalStr)
 	if err != nil {
 		return nil, fmt.Errorf("invalid refreshInterval: %w", err)
@@ -82,12 +84,6 @@ func LoadConfig(path string) (*Config, error) {
 		return nil, fmt.Errorf("invalid epgUrl: %w", err)
 	}
 
-	if config.UseFFMPEG {
-		if _, err := exec.LookPath("ffmpeg"); err != nil {
-			return nil, fmt.Errorf("ffmpeg is enabled but not found in PATH: %w", err)
-		}
-	}
-
 	if err := config.compileFilterRegexps(); err != nil {
 		return nil, err
 	}

config_test.go

@@ -19,7 +19,7 @@ epgUrl: http://example.com/epg
 listenAddress: localhost:8080
 serverAddress: iptvserver:8080
 refreshInterval: '2h'
-ffmpeg: false
+ffmpeg: true
 maxStreams: 10
 filters:
   - filter: sports.*