perf(#1280): 预览视频生成加速 — ultrafast编码+并行下载+跳过非必要步骤 #1284
Merged
xiaoxia
merged 3 commits from 2026-08-07 21:52:03 +08:00
feature/1280-preview-generation-speedup into develop
3 Commits
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 xiaoxia
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1e03fb410a |
Merge branch 'develop' into feature/1280-preview-generation-speedup
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9521d7e0c4 |
style: auto-format with black + isort + prettier [skip ci-format-check]
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SaaS Frontend Agent
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35f49d1d4e |
perf(#1280): 预览视频生成加速
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优化项： 1. FFmpeg 编码加速：预览模式使用 -preset ultrafast + crf 28（原 medium + crf 23） 2. 并行素材下载：使用 ThreadPoolExecutor 并发下载（最多6线程），保持原始顺序 3. 跳过 ASR 初始化：预览模式不需要自动字幕 4. 跳过输出校验：预览模式跳过 validate_video_output 5. 跳过缩略图生成：预览模式不生成封面缩略图 改动文件： - apps/worker/video_processing/unified_render_service.py：is_preview 参数 - apps/worker/video_processing/render_adapter.py：is_preview 透传 + 跳过非必要步骤 - apps/worker/worker_app/tasks/generation.py：并行下载 + is_preview 透传 - tests/unit/test_1280_preview_speedup.py：13 个新测试 预期效果：30s 视频预览生成从 ~2-3min 降至 ~30-60s |