Files
video-subtitle-remover/backend/tools
flavioy 6c61ddc6b0 性能优化:帧采样、FFmpeg编码、帧预读取、消除冗余拷贝
- 字幕检测:每3帧采样一次OCR,中间帧插值填充,检测速度提升约3倍
- 视频编码:cv2.VideoWriter(mp4v) 替换为 FFmpeg libx264 管道编码,画质更好、体积更小
- 帧预读取:后台线程预解码视频帧,I/O 与模型推理重叠
- 消除 deepcopy:numpy 数组改用 .copy() 替代 copy.deepcopy,降低内存开销
- 清理冗余颜色空间转换中的 np.array() 包装

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-07 22:58:52 +08:00
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