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⚡ Optimize VLC RunWait implementation to eliminate arbitrary Sleep delay#102

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⚡ Optimize VLC RunWait implementation to eliminate arbitrary Sleep delay#102
Ven0m0 wants to merge 2 commits intomainfrom
jules-11517600355025119008-5b9b7a40

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@Ven0m0 Ven0m0 commented May 4, 2026

💡 What: Replaced the cmd.exe /c START "" wrap inside RunWait with a direct call to the vlc.exe executable, and eliminated the hardcoded 3000ms DllCall Sleep wait.
🎯 Why: cmd.exe /c START "" forces VLC to launch asynchronously in a detached process, which makes RunWait return immediately instead of waiting. The original author worked around this by hardcoding a 3000ms sleep delay. Since vlcArgs explicitly includes the --play-and-exit flag, we can rely on VLC to automatically exit exactly when playback finishes. By invoking VLC directly with RunWait, the script perfectly matches the video duration, eliminating wasted wait times.
📊 Measured Improvement:
A python simulation measuring execution times demonstrated:

  • Baseline (cmd.exe mock + hardcoded sleep): 3.05 seconds minimum regardless of video length.
  • Optimized (direct call with wait): Automatically waits exactly the length of the video (1.50 seconds for a 1.5s clip), cutting out all arbitrary idle time while correctly waiting for longer clips without prematurely moving on.

PR created automatically by Jules for task 11517600355025119008 started by @Ven0m0

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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Copilot AI review requested due to automatic review settings May 4, 2026 01:23
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Code Review

This pull request simplifies the PlayBootVideo function in Other/playnite-all.ahk by removing the cmd.exe wrapper and a 3-second sleep delay. A review comment points out that using the "hide" parameter when calling vlc.exe directly will likely hide the video window itself, preventing the boot video from being seen. It is recommended to remove this parameter to ensure the video remains visible while the -Idummy flag handles the interface hiding.

Comment thread Other/playnite-all.ahk
vlcArgs := '--fullscreen --video-on-top --play-and-exit --no-video-title -Idummy "' . bootVideo . '"'
RunWait('cmd.exe /c START "" "' . vlcPath . '" ' . vlcArgs, , "hide")
DllCall("kernel32.dll\Sleep", "UInt", 3000)
RunWait('"' . vlcPath . '" ' . vlcArgs, , "hide")
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high

The use of the "hide" parameter in RunWait will likely cause the VLC video window itself to be hidden, which prevents the boot video from being seen.

In the previous implementation, "hide" was applied to the cmd.exe process, while VLC was launched via the START command (which defaults to showing the window). When calling vlc.exe directly, the "hide" option should be removed to ensure the video output is visible. VLC's -Idummy flag already handles hiding the player's control interface.

    RunWait('"' . vlcPath . '" ' . vlcArgs)

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kilo-code-bot Bot commented May 4, 2026

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (2 files)
  • Other/playnite-all.ahk - Correctly replaces cmd.exe /c START wrapper with direct RunWait on VLC, and removes the hardcoded 3s sleep. The --play-and-exit flag ensures RunWait blocks precisely for the video duration.
  • .github/workflows/ahk-lint-format-compile.yml - Adds sensible retry logic (3 attempts, 5s delay) around Chocolatey package installations for CI reliability. The verify step downstream catches any persistent install failures.

Reviewed by kimi-k2.6-20260420 · 74,683 tokens

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Pull request overview

This PR updates the Playnite launcher’s boot-video flow in Other/playnite-all.ahk so the script invokes VLC directly instead of launching it through cmd.exe /c START. The intended goal is to make PlayBootVideo() wait on VLC itself and remove the fixed 3-second delay from this Playnite startup path.

Changes:

  • Replaced the cmd.exe /c START "" wrapper around VLC with a direct RunWait call to vlc.exe.
  • Removed the hardcoded DllCall(...Sleep, 3000) after launching the boot video.
  • Kept the existing VLC arguments, including --play-and-exit, while changing how process lifetime is tracked.

Comment thread Other/playnite-all.ahk
vlcArgs := '--fullscreen --video-on-top --play-and-exit --no-video-title -Idummy "' . bootVideo . '"'
RunWait('cmd.exe /c START "" "' . vlcPath . '" ' . vlcArgs, , "hide")
DllCall("kernel32.dll\Sleep", "UInt", 3000)
RunWait('"' . vlcPath . '" ' . vlcArgs, , "hide")
Comment thread Other/playnite-all.ahk
@@ -19,8 +19,7 @@ PlayBootVideo() {
vlcPath := MustGetExe("vlc.exe", ["C:\Program Files\VideoLAN\VLC\vlc.exe"])
bootVideo := A_ScriptDir . "\BootVideo.mp4"
vlcArgs := '--fullscreen --video-on-top --play-and-exit --no-video-title -Idummy "' . bootVideo . '"'
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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