fix(render): 修复生成视频时长短于模板要求时长 #1614
Merged
xiaoxia
merged 2 commits from 2026-09-01 20:00:12 +08:00
fix/video-duration-mismatch into develop
2 Commits
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c49fad83fd |
style: auto-format with black + isort + prettier [skip ci-format-check]
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saas-backend-agent
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4266c6f9b0 |
fix(render): 修复生成视频时长短于模板要求时长
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根因分析： 1. 素材实际时长 < 配置时长时，min(duration, actual) 截短 clip 2. xfade offset 计算错误，未考虑前序转场的累积时长缩减 修复： - _resolve_clips: 素材不足时自动降低 playback_speed 补偿 (如配置4s但素材仅3s → speed=0.75x，用满3s素材达到4s输出) - _clip_effective_duration: 减速场景返回配置的 duration - xfade_builder: offset = first_input_dur - td（正确公式） 修复后 4 clips × 4s + 3 × 0.5s xfade = 14.5s（正确） 修复前 = 14.5s 但 offset 分布不均，导致内容错位 - from-assets: 分配时加转场补偿 (n-1)*td/n 确保最终输出 = 模板设定总时长 新增 debug 日志： - 每个 clip 的 duration/actual_duration/effective_duration/speed - 各图层时长明细和 estimated video_duration - xfade 链的 durations 和 estimated_dur 同步修复 PR #1611 遗留的测试（SEGMENT_EDGE_GAP=1.5 适配） |