ai-video-translation（AI 视频翻译）

newtranx CLI (newtranx)

Translate videos and podcasts from the terminal using the newtranx API.

Installation

npx --yes newtranx-ai

Usage Process

1. login

npx newtranx-ai login

Automatically obtain device ID, call the registration login interface to obtain token, and save it to ~/. newtranx/config. json . The token is valid for 15 days.

2. Upload videos

Supports local files and HTTP URLs, only supports mp4 format. If the format is not supported, please use ffmepg to transcode to mp4 file size not exceeding 5GB and duration not exceeding 4 hours. Important: URLs containing ? or & must be quoted to avoid shell glob errors.

npx newtranx-ai upload ./video.mp4

# HTTP URL
npx newtranx-ai upload https://example.com/video.mp4

Restrictions: -Format: mp4 only -Size: not exceeding 5GB

Automatically upload videos in 4MB chunks and display upload progress. After uploading, output the task ID.

3. Submit translation task

npx newtranx-ai  translate --id <taskID> \
  --audio-lang en-US \
  --trans-lang zh-CN \
  --max-speakers 2 \
  --export-subtitle

Parameter description:

• --id (Required): Upload the returned task ID
• --audio-lang(Required): Call the npx newtranx-ai language command in the original language of the video to view
• --trans-lang(Required): Call the npx newtranx-ai language command to view the target translation language
• --max-speakers: Number of speakers
• --export-subtitle: Do you want to merge subtitles into the video
• --re-transwrite: Do you want to rewrite it
• --subtitle-font-size: Subtitle Font Size
• --subtitle-max-chars: Maximum number of characters per subtitle segment
• --subtitle-outline-color: Subtitle outline color
• --subtitle-primary-color: Subtitle main color

4. Regularly query query results

# default output translated video download link
npx newtranx-ai status --id <taskID>

# output original VTT subtitles download link
npx newtranx-cli status --id <taskID> --subtitle

# output translated VTT subtitles download link
npx newtranx-cli status --id <taskID> --targetSubtitle 

# output metadata include speaker information download link
npx newtranx-cli status --id <taskID> --metadata 

When 'iterationStatus==Succeeded', the result contains:

• Translated video download link
• Source language subtitle file link
• Target language subtitle file link
• Metadata file link

5. Query supported languages

npx newtranx-ai language

npx newtranx-ai language --region CN

Return a list of language codes and names that can be used for the audio lang and trans lang parameters of the translate command.

Usage Tips

1. If the token expires, call npx newtranx ai login and then retry.
2. It must be called according to the process.