From b9acf8c86f011b38c1794c66a2844397a7005057 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=81=B5=E5=BA=94?= <lingying@coze.email>
Date: Sun, 13 Sep 2026 23:36:02 +0800
Subject: [PATCH] =?UTF-8?q?fix(worker):=20=E4=BF=AE=E5=A4=8D=E5=83=8F?=
 =?UTF-8?q?=E7=B4=A0=E6=89=B0=E5=8A=A8color=5Fbalance=E6=BB=A4=E9=95=9C?=
 =?UTF-8?q?=E5=90=8D=E9=94=99=E8=AF=AF=E5=AF=BC=E8=87=B4ffmpeg=20exit=3D8?=
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根因：像素扰动功能(bb98620)在ffmpeg滤镜链中使用了color_balance滤镜名，
但ffmpeg的实际滤镜名是colorbalance（无下划线），导致滤镜解析失败，
报错'No such filter: color_balance'，ffmpeg退出码8。

影响：任何启用了像素扰动的变体渲染（默认批量变体会随机启用）都会失败，
表现为进度卡在56%，error_message只显示ffmpeg版本banner。

修复：将ffmpeg滤镜名从color_balance=改为colorbalance=。
内部config key保持color_balance不变（避免兼容问题）。
---
 apps/worker/video_processing/unified_render_service.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/apps/worker/video_processing/unified_render_service.py b/apps/worker/video_processing/unified_render_service.py
index 86ea5027c..f03b3788f 100755
--- a/apps/worker/video_processing/unified_render_service.py
+++ b/apps/worker/video_processing/unified_render_service.py
@@ -2301,13 +2301,13 @@ class UnifiedRenderService:
                     filters.append(f"eq=contrast={contrast:.3f}")
 
             elif filt == "color_balance":
-                # RGB 通道偏移：color_balance=rs=...:gs=...:bs=...
+                # RGB 通道偏移：colorbalance=rs=...:gs=...:bs=...
                 r = pixel_pert.get("color_r", 0)
                 g = pixel_pert.get("color_g", 0)
                 b = pixel_pert.get("color_b", 0)
                 if r != 0 or g != 0 or b != 0:
                     # color_balance 参数范围 -1.0 ~ 1.0，这里用 /100 转换
-                    filters.append(f"color_balance=rs={r/100:.3f}:gs={g/100:.3f}:bs={b/100:.3f}")
+                    filters.append(f"colorbalance=rs={r/100:.3f}:gs={g/100:.3f}:bs={b/100:.3f}")
 
     @staticmethod
     def _clip_volume(clip: ResolvedClip) -> float: