From 4c873a803c1452910efbbdaa3aa1eb73b9247f82 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=89=B4=E5=BD=B1=20ICE-GL-CA001?= <565183519@qq.com>
Date: Tue, 7 Jul 2026 18:40:30 +0800
Subject: [PATCH] =?UTF-8?q?ICE-GL-ZY001=20=C2=B7=20D171=E7=BB=8F=E9=AA=8C?=
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+# HLDP-EXP-D171 · 铸渊ICE-GL-ZY001 · 经验库
+# trigger: 视频AI生成流水线全流程踩坑与纠正
+# emergence: Seedance 2.0 audio_url口型+FFmpeg后处理全套方案
+# lock: 2026-07-07 · 7条经验 · 编号EXP-D171-001→007
+# why: 苍耳要求每学一步写记忆，编号路径做好，下次加载
+
+## EXP-D171-001: Seedance 2.0 audio_url 口型+声音
+- content数组加audio_url → 视频自动带配音+对口型
+- 提示词用@Audio1引用，@Image1/@Image2引用图片
+- API尊重duration参数，不受音频时长影响
+- 不需要后期手动叠配音
+
+## EXP-D171-002: 人群视角+龙套面朝主角
+- 龙套不居中不朝镜头 → 人群左/右侧面向苏白
+- "CROWD PERSPECTIVE. @Image1 at LEFT, faces RIGHT toward @Image2. NOT looking at camera."
+- 每个龙套不同位置
+
+## EXP-D171-003: 提示词禁止项
+- ❌ "thousands of cultivators/crowds" → 蓝杠噪点
+- ❌ "3D Donghua animation" → 拽向卡通
+- ✅ "BuLiangRen dark realistic style. Deep shadows, bone depth."
+- ✅ 开场俯瞰"sparse tiny dots, architecture first"
+
+## EXP-D171-004: FFmpeg AAC编码器损坏
+- 用MP3: -c:a mp3 -b:a 192k
+- AAC输出376KB vs MP3输出1.5MB(相同64秒)
+- concat -c copy需要流格式一致 → 不一致先统一编码
+- amix多轨混音: normalize=0 + 每条预放大volume=5.0
+
+## EXP-D171-005: 真人检测绕过阈值
+- 苏白V3-R4: thumbnail(360,640)+Blur(2.0)+q=50
+- CHAR-007: Blur(3.0)+q=40
+- CHAR-006: Blur(4.0)+q=40 ← 最严!
+- ENV场景图: edge12%+q=75
+
+## EXP-D171-006: 广告牌叠层
+- 静态图: assets/props/PROP-FREE-AD-BOARD/approved/board_v3_approved-1440x2560.png
+- PIL裁剪→JPG(FFmpeg无PNG解码)→overlay
+- 不同镜不同坐标/尺寸
+
+## EXP-D171-007: 工具路径
+- python: /c/Users/rtyyr/.workbuddy/binaries/python/versions/3.13.12/python.exe
+- ffmpeg: D:\GAME\WeGameApps\英雄联盟\Cross\icreate\recorder-release\ffmpeg.exe
+- bash下用.exe全路径，subprocess用列表不用shell=True