• add WaitDelay to ffmpeg command to kill the process if it hangs
• perform hardware codec tests in a separate goroutine so that ffmpeg initialisation can return immediately, hardware encoding will be disabled until the tests are completed
• added warning log if initialisation takes more than 5 seconds

Related: https://discourse.stashapp.cc/t/initial-installation-hangs-on-optimizing-database/4739

I was unable to reproduce the hanging ffmpeg issue, even after installing ffmpeg 8.0.0 from chocolatey, so I created a hanging ffmpeg instance in go:

package main

import (
	"fmt"
	"os"
	"time"
)

func main() {

	if len(os.Args) > 1 && os.Args[1] == "-version" {
		fmt.Println("ffmpeg version 8.0-essentials_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers")
		os.Exit(0)
	}

	if len(os.Args) > 1 && os.Args[1] == "-h" {
		fmt.Println("--enable-libopus --enable-libvpx --enable-libx264 --enable-libx265 --enable-libwebp")
		os.Exit(0)
	}

	time.Sleep(1 * time.Minute)
}