All of the main options are working, now to handle in/output directories and such.

config/settings.go

@@ -29,7 +29,7 @@ type config struct {
 var Settings config
 
 func parseFlags(c *config) {
-  flag.IntVar(&c.Test, "test", 10,  "Make a test video <int> seconds long.")
+  flag.IntVar(&c.Test, "test", 0,  "Make a test video <int> seconds long.")
   flag.IntVar(&c.TestStart, "test-start", 60,  "When to start the test clip.")
   flag.BoolVar(&c.InitOutdir, "init-outdir", false,  "if outdir doesn't exist create it")
   flag.IntVar(&c.Debug, "debug", 0, "1=print the ffmpeg command, 2=and its stderr output")

main.go

@@ -2,12 +2,16 @@ package main
 
 import (
   "fmt"
+  "log"
   "lcthw.dev/vidcrunch/config"
   "github.com/modfy/fluent-ffmpeg"
 )
 
-func Run(pass string) {
+const DevNull = "NUL"
+
+func Run(pass int, output string) {
   pid := 1
+
   encode := fluentffmpeg.NewCommand("")
 
   mp4_opts := []string{
@@ -16,29 +20,48 @@ func Run(pass string) {
     "-pix_fmt", "yuv420p",
     "-tune", config.Settings.Tune,
     "-movflags", "faststart",
-    "-pass", pass,
+    "-pass", fmt.Sprint(pass),
     "-passlogfile", fmt.Sprintf("ffmpeg2pass-%d.log", pid),
     "-preset", config.Settings.Speed,
-    "-filter:v", fmt.Sprintf("fps=%d", config.Settings.FPS),
-    "-crf", fmt.Sprint(config.Settings.CRF),
   }
 
-  encode.Options(mp4_opts...)
+  if pass != 3 {
+    mp4_opts = append(mp4_opts, "-an")
+  } else {
+    encode.AudioCodec("aac")
+    mp4_opts = append(mp4_opts,
+      "-b:a", fmt.Sprint(config.Settings.AudioBitrate * 1024))
+  }
+
+  if config.Settings.Test > 0 {
+    encode.InputOptions(
+      "-ss", fmt.Sprintf("00:%d", config.Settings.TestStart))
+    mp4_opts = append(mp4_opts, "-t", fmt.Sprint(config.Settings.Test))
+  }
+
+  encode.VideoCodec("libx264").
+    VideoBitRate(config.Settings.VideoBitrate * 1024).
+    FrameRate(config.Settings.FPS).
+    ConstantRateFactor(config.Settings.CRF)
+
+  encode.OutputOptions(mp4_opts...)
 
   cmd := encode.InputPath(config.Settings.Input).
     OutputFormat("mp4").
-    OutputPath(config.Settings.Output).
+    OutputPath(output).
     Build()
 
   fmt.Println("COMMAND", cmd.String())
 
   err := cmd.Run()
-  if err != nil { panic("fail") }
+  if err != nil { log.Fatalf("%v", err) }
 }
 
 func main() {
   config.Load()
   fmt.Println(config.Settings)
 
-  Run("1")
+  Run(1, DevNull)
+  Run(2, DevNull)
+  Run(3, config.Settings.Output)
 }