| name | lightflow-video-subtitles |
| description | Export supplied multilingual timeline subtitles to SRT and burn one selected language into video. |
| version | 0.2.0 |
LightFlow Video Subtitles
The package-owned runner.v1 binary is Rust-native and performs no cloud or
local ASR, translation, or language
detection. Supply already-created subtitle tracks explicitly, then select one
language for SRT export and video burn-in.
lfw run lightflow.video_subtitles \
--input source_path='"media/demo.mp4"' \
--input subtitle_tracks='[{"language":"zh-CN","cues":[{"start_ms":0,"end_ms":1500,"text":"你好"}]},{"language":"en","cues":[{"start_ms":0,"end_ms":1500,"text":"Hello"}]}]' \
--input selected_language='"zh-CN"' \
--input font_path='"assets/NotoSansCJK-Regular.ttc"' \
--input output_path='"output/demo-zh.mp4"' \
--input srt_output_path='"output/demo-zh.srt"'
The same workflow is available through the HTTP API:
curl -X POST http://127.0.0.1:8787/workflows/lightflow.video_subtitles/run \
-H 'content-type: application/json' \
-d '{"inputs":{"source_path":"media/demo.mp4","subtitle_tracks":[{"language":"en","cues":[{"start_ms":0,"end_ms":1500,"text":"Hello"}]}],"selected_language":"en","output_path":"output/demo-en.mp4","srt_output_path":"output/demo-en.srt"}}'
Passing transcription_request or translation_request fails clearly because
no provider, dependency, or credential is configured. Use
lightflow.video_work_subtitles for authenticated Video Work API subtitle
extraction, then pass the resulting tracks through subtitle_tracks.
