feat: support changing file name

src/ffmpeg.rs

@@ -98,7 +98,16 @@ pub async fn convert_video(
     merge_tracks: bool,
     sender: Sender<ProgressMessage>,
 ) -> Result<PathBuf> {
-    let out_path = PathBuf::from("/tmp/out.webm");
+    let out_filename = out_filename
+        .or_else(|| {
+            path.file_name()
+                .and_then(|s| s.to_str())
+                .map(|s| s.to_owned())
+        })
+        .unwrap_or("out.webm".into());
+
+    let mut out_path = std::env::temp_dir().join(out_filename);
+    out_path.set_extension("webm");
 
     let codec_args: &[&str] = match out_codec {
         Codec::AV1 => &["-c:v", "libsvtav1"],
@@ -118,7 +127,7 @@ pub async fn convert_video(
         .args(["-c:a", "libopus", "-b:a", "96k"])
         .args(codec_args)
         .args(merge_args)
-        .args(["-loglevel", "error", "-progress", "-", "-nostats"])
+        .args(["-y", "-loglevel", "error", "-progress", "-", "-nostats"])
         .arg(&out_path)
         .stdout(Stdio::piped())
         .spawn()?;

src/main.rs

@@ -459,7 +459,6 @@ async fn the_process(app: UploadInfo, sender: &Sender<ProgressMessage>) -> Resul
         .thumbnail_url(&app.config)
         .ok_or_eyre("could not get thumbnail url")?;
 
-    // TODO get w&h from video
     Ok(format!(
         "https://autocompressor.net/av1?v={}&i={}&w={}&h={}",
         Encoded(&zp_file.url),