From 534dbd394935e8b571102fe080c6a45fcea98197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B0=8F=E9=B1=BC=E5=BC=80=E5=8F=91?= <git@xiaoyu.com>
Date: Thu, 4 Jun 2026 17:38:54 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E7=BB=9F=E4=B8=80=E5=89=8D=E5=90=8E?=
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Rust 层 video_compose.rs 和 lib.rs 中的校验使用绝对误差 0.01
（约 1.78% 相对误差），比前端 videoValidation.ts 的 3% 更严格，
导致部分前端通过的视频在 Rust 层被拦截。

统一改为 ，
与前端的相对误差算法保持一致。
---
 tauri-app/src-tauri/src/commands/video_compose.rs | 4 ++--
 tauri-app/src-tauri/src/lib.rs                    | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tauri-app/src-tauri/src/commands/video_compose.rs b/tauri-app/src-tauri/src/commands/video_compose.rs
index 415530b..14f245b 100644
--- a/tauri-app/src-tauri/src/commands/video_compose.rs
+++ b/tauri-app/src-tauri/src/commands/video_compose.rs
@@ -39,14 +39,14 @@ fn get_project_video_dir(app: &AppHandle, project_id: &str) -> Result<std::path:
         .map_err(|e| format!("获取项目视频目录失败: {}", e))
 }
 
-/// 校验视频比例是否为 9:16（允许 1% 误差）
+/// 校验视频比例是否为 9:16（允许 ±3% 容差）
 fn validate_nine_sixteen_aspect(width: u32, height: u32) -> Result<(), String> {
     if width == 0 || height == 0 {
         return Err("无法读取视频分辨率".to_string());
     }
     let ratio = width as f64 / height as f64;
     let expected = 9.0 / 16.0;
-    if (ratio - expected).abs() > 0.01 {
+    if (ratio - expected).abs() / expected > 0.03 {
         return Err(format!(
             "视频比例必须是 9:16，当前为 {}×{}（比例 {:.3}）",
             width, height, ratio
diff --git a/tauri-app/src-tauri/src/lib.rs b/tauri-app/src-tauri/src/lib.rs
index 5acc380..2f5e6bd 100644
--- a/tauri-app/src-tauri/src/lib.rs
+++ b/tauri-app/src-tauri/src/lib.rs
@@ -688,7 +688,7 @@ async fn video_composite_synthesis(
                 }
                 let ratio = meta.width as f64 / meta.height as f64;
                 let expected = 9.0 / 16.0;
-                if (ratio - expected).abs() > 0.01 {
+                if (ratio - expected).abs() / expected > 0.03 {
                     return ApiResponse {
                         code: 400,
                         message: format!(