add-subtitles-burnedlisted

# Add Burned Subtitles / 烧入字幕 ## When to use / 何时使用 TikTok, Bilibili shorts, in-feed video where closed captions can't be assumed. TikTok、Bilibili 短视频等无法依赖 CC 的平台。 ## Inputs / 输入 - Video file. - `workspace/subtitles/master.srt` (or `.ass`). - `templates/subs/brand.ass` style. ## Output / 输出 - `<basename>.subbed.mp4`. ## Steps / 步骤 1. Convert SRT → ASS if needed, applying brand style. 2. Run `ffmpeg -vf "ass=subs.ass" -c:v libx264 -crf 18 -c:a copy`. 3. Verify subtitle alignment by spot-checking timestamps. ## Examples / 示例 ``` ffmpeg -i in.mp4 -vf "ass=brand.ass" -c:v libx264 -crf 18 -c:a copy out.mp4 ``` ## Failure recovery / 失败回退 - If ASS conversion fails, fall back to plain SRT burn via `subtitles=` filter. - If CJK font missing, install Noto Sans CJK and retry.