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