diff --git a/tauri-app/src-tauri/src/ffmpeg_cmd.rs b/tauri-app/src-tauri/src/ffmpeg_cmd.rs
index 0ae287c..47375a1 100644
--- a/tauri-app/src-tauri/src/ffmpeg_cmd.rs
+++ b/tauri-app/src-tauri/src/ffmpeg_cmd.rs
@@ -546,7 +546,7 @@ pub async fn get_video_metadata(app: &AppHandle, input_path: &str) -> Result<Vid
     let args = vec![
         "-v".to_string(), "error".to_string(),
         "-select_streams".to_string(), "v:0".to_string(),
-        "-show_entries".to_string(), "stream=width,height,duration,r_frame_rate".to_string(),
+        "-show_entries".to_string(), "stream=width,height,duration,r_frame_rate:format=duration".to_string(),
         "-of".to_string(), "json".to_string(),
         safe_input,
     ];
@@ -611,10 +611,15 @@ pub async fn get_video_metadata(app: &AppHandle, input_path: &str) -> Result<Vid
         .and_then(|v| v.as_u64())
         .ok_or_else(|| "无法解析视频高度".to_string())? as u32;
 
-    // duration 可能是字符串或数字
-    let duration = stream.get("duration")
-        .and_then(|v| v.as_f64().or_else(|| v.as_str().and_then(|s| s.parse().ok())))
-        .unwrap_or(0.0);
+    // duration 可能是字符串或数字；某些格式（如 MPEG-TS）stream duration 为 N/A，需从 format 回退
+    let stream_duration = stream.get("duration")
+        .and_then(|v| v.as_f64().or_else(|| v.as_str().and_then(|s| s.parse().ok())));
+
+    let format_duration = parsed.get("format")
+        .and_then(|f| f.get("duration"))
+        .and_then(|v| v.as_f64().or_else(|| v.as_str().and_then(|s| s.parse().ok())));
+
+    let duration = stream_duration.or(format_duration).unwrap_or(0.0);
 
     // 帧率格式为 "25/1" 或 "30000/1001"
     let fps = stream.get("r_frame_rate")