fix(windows): don't open terminal windows when runnings commands

src/ffmpeg.rs

@@ -14,6 +14,40 @@ use tokio::{
 
 use crate::ProgressMessage;
 
+trait CommandExt {
+    fn create_no_window(&mut self) -> &mut Self;
+}
+
+impl CommandExt for Command {
+    #[cfg(windows)]
+    fn create_no_window(&mut self) -> &mut Self {
+        use std::os::windows::process::CommandExt as _;
+
+        // https://learn.microsoft.com/en-us/windows/win32/procthread/process-creation-flags#flags
+        self.creation_flags(0x0800_0000)
+    }
+
+    #[cfg(not(windows))]
+    fn create_no_window(&mut self) -> &mut Self {
+        self
+    }
+}
+
+impl CommandExt for std::process::Command {
+    #[cfg(windows)]
+    fn create_no_window(&mut self) -> &mut Self {
+        use std::os::windows::process::CommandExt as _;
+
+        // https://learn.microsoft.com/en-us/windows/win32/procthread/process-creation-flags#flags
+        self.creation_flags(0x0800_0000)
+    }
+
+    #[cfg(not(windows))]
+    fn create_no_window(&mut self) -> &mut Self {
+        self
+    }
+}
+
 #[derive(serde::Deserialize)]
 struct FfprobeOut {
     streams: Vec<StreamInfo>,
@@ -59,10 +93,12 @@ impl From<String> for Codec {
 
 pub fn check() -> Result<()> {
     std::process::Command::new("ffmpeg")
+        .create_no_window()
         .output()
         .context("could not find ffmpeg")?;
 
     std::process::Command::new("ffprobe")
+        .create_no_window()
         .output()
         .context("could not find ffprobe")?;
 
@@ -81,6 +117,7 @@ pub async fn get_video_meta(path: &Path) -> Result<VideoMeta> {
         ])
         .arg(path)
         .stdout(Stdio::piped())
+        .create_no_window()
         .output()
         .await?;
 
@@ -151,6 +188,7 @@ pub async fn convert_video(
         .args(["-y", "-loglevel", "error", "-progress", "-", "-nostats"])
         .arg(&out_path)
         .stdout(Stdio::piped())
+        .create_no_window()
         .spawn()?;
 
     let stdout = child.stdout.take().unwrap();