Skills

alibabacloud-video-translation

Installation
SKILL.md

Video Translation Skill

One-click video translation powered by Alibaba Cloud IMS, supporting subtitle-level and speech-level translation.

Input Format Requirements

IMPORTANT: Different APIs use different address formats!

API Address Format Reference

API Address Format Example
SubmitIProductionJob (subtitle extraction) oss:// format oss://my-bucket/videos/test.mp4
SubmitVideoTranslationJob (video translation) HTTP URL format https://my-bucket.oss-cn-shanghai.aliyuncs.com/videos/test.mp4

Key: Subtitle extraction uses oss://, video translation uses HTTP URL!

User Input Handling

User Input Type Processing Method
HTTP URL format Use directly for video translation; convert to oss:// if subtitle extraction needed
oss:// format Use directly for subtitle extraction; convert to HTTP URL for video translation
Local video MUST ask for OSS upload path, save both formats after upload

Format Conversion Rules

oss:// format ⇄ HTTP URL format

oss://my-bucket/videos/test.mp4
    ⇄
https://my-bucket.oss-cn-shanghai.aliyuncs.com/videos/test.mp4

Conversion Formula:

  • oss://<bucket>/<path> → https://<bucket>.oss-<region>.aliyuncs.com/<path>
  • HTTP URL does not require signing, use Bucket domain format directly

Local Video Processing Flow

User provides local video path
    │
    ├─ AskUserQuestion: "Please provide OSS upload path (format: oss://<bucket>/<path>/<filename>.mp4)"
    │
    ├─ User specifies upload path
    │   ├─ Check if Bucket exists
    │   ├─ Upload file: aliyun oss cp <local_path> <oss_path>
    │   ├─ Save oss:// format → for subtitle extraction
    │   └─ Save HTTP URL format → for video translation
    │
    └─ User does not specify path → STOP, user MUST provide upload path

Upload Command:

aliyun oss cp <local_path> oss://<bucket>/<path>/<filename>.mp4

Save both formats after upload:

Local: /Users/demo/videos/test.mp4
Uploaded to: oss://my-bucket/videos/test.mp4
    ├─ oss:// format: oss://my-bucket/videos/test.mp4 (for subtitle extraction)
    └─ HTTP URL: https://my-bucket.oss-cn-shanghai.aliyuncs.com/videos/test.mp4 (for video translation)

Execution Gate Checklist

Strict Requirement: Agent MUST execute in phase order, cannot proceed without passing current phase!

Phase 0: Environment and Credential Check (HARD-GATE)

Check Item Command Pass Condition Failure Handling
CLI version aliyun version >= 3.3.1 STOP, see cli-installation-guide.md
Credential status aliyun configure list Valid status STOP, guide configuration
Plugin installation aliyun configure set --auto-plugin-install true Set Auto-set

HARD-GATE: Cannot proceed with any subsequent operations without passing!

Phase 1: Translation Mode Confirmation (BLOCKING)

AskUserQuestion: "Do you need subtitle translation (translate subtitles only) or speech translation (translate subtitles + replace voiceover)?"

┌─ Subtitle translation → NeedSpeechTranslate: false
└─ Speech translation → NeedSpeechTranslate: true

⚠️ No reply received → STOP, cannot proceed!

DO NOT infer translation mode from input type!

Phase 2: Subtitle Processing Confirmation (BLOCKING)

AskUserQuestion: "Do you need to erase original subtitles from the video? Do you need to burn-in translated subtitles?"

⚠️ No reply received → STOP, cannot proceed!

Parameter Mapping:

Feature Parameter Value
Erase original subtitles DetextArea "Auto" / coordinates / not set (no erasure)
Burn-in new subtitles SubtitleConfig config object / not set (no burn-in)

Phase 3: Output Path Confirmation (Non-blocking)

Condition Processing Method
User explicitly specifies Use user's path
User does not specify Use default path and inform user

Default Output Rules:

  • Bucket: Same bucket as input video
  • Directory: Same directory as input video
  • Filename: {source}_translated_{random8}.mp4
  • Example: oss://bucket/videos/demo.mp4 → oss://bucket/videos/demo_translated_a1b2c3d4.mp4

DO NOT use shell variables, use Python: python3 -c "import random; print(''.join(random.choices('abcdefghijkmnpqrstuvwxyz23456789', k=8)))"

Phase 4: Subtitle Review Confirmation (Conditional Blocking)

Trigger Condition Processing Method
User chooses to review subtitles BLOCKING, MUST wait for user confirmation of review result
User does not need review Non-blocking, proceed

CRITICAL: After subtitle extraction, MUST output content as-is for user review, DO NOT change format!

Scenario Entry Selector

Key Points:

  1. When user inputs local video, MUST first upload to OSS and get HTTP URL
  2. When user does not provide subtitle, MUST ask if subtitle extraction and review is needed
User inputs video
    │
    ├─ Local video?
    │   └─ Yes → AskUserQuestion: "Please provide OSS upload path"
    │       ├─ User provides path → Upload to OSS → Convert to HTTP URL → Continue
    │       └─ User does not provide → STOP
    │
    ├─ oss:// format?
    │   └─ Yes → Inform user to convert to HTTP URL format
    │
    └─ HTTP URL format? → Continue
        │
        ├─ User provides SRT file?
        │   ├─ Yes → Input type = with_subtitle
        │   │   ├─ Translation mode = speech → 【Scenario 4】 ⚠️ MUST ask CustomSrtType
        │   │   └─ Translation mode = subtitle → 【Scenario 3】
        │   │
        │   └─ No → Input type = only_video ⚠️ MUST ask if review needed
        │       │
        │       ├─ AskUserQuestion: "Do you need to extract subtitles for review first, or translate directly?"
        │       │
        │       ├─ Need review → 【Scenario 2】 ⚠️ Phase 4 blocking
        │       │
        │       └─ Direct translation → 【Scenario 1】 (TextSource=OCR_ASR)
Scenario Name Blocking Point TextSource Flow
0 Local video upload OSS upload path inquiry - Upload→HTTP URL→Subsequent scenario
1 Direct translation Phase 1, 2 OCR_ASR Submit translation directly
2 Subtitle review Phase 1, 2, Subtitle review inquiry, Phase 4 SubtitleFile Extract subtitle→Review→Translate
3 Subtitle translation + user subtitle Phase 1, 2 SubtitleFile Use user SRT to translate directly
4 Speech translation + user subtitle Phase 1, 2 + CustomSrtType confirmation SubtitleFile Confirm subtitle language then translate

Scenario 0 (Local video) detailed flow:

  1. AskUserQuestion: "Please provide OSS upload path (format: oss:////.mp4)"
  2. After user specifies path, execute aliyun oss cp <local_path> <oss_path>
  3. Convert to HTTP URL: https://<bucket>.oss-<region>.aliyuncs.com/<path>/<filename>.mp4
  4. Continue with subsequent scenario flow

Scenario 2 detailed flow:

  1. Ask for subtitle detection region (roi parameter)
  2. Call CaptionExtraction to extract subtitles, input and output use oss:// format
  3. Output subtitle content as-is for user review
  4. After user confirmation, use reviewed SRT to submit translation

Parameter Decision Table

Decision Rules: Clearly define handling for each parameter, DO NOT assume arbitrarily!

Parameter Trigger Condition Handling Method Default Value Prohibited Behavior
NeedSpeechTranslate Always MUST ask None DO NOT infer from input
NeedFaceTranslate Always Fixed value false DO NOT set to true
DetextArea User chooses erasure MUST ask None DO NOT set to Auto arbitrarily
SubtitleConfig User chooses burn-in Can use default Standard style DO NOT skip confirmation
TextSource Scenario decides Scenario rules See scenario mapping DO NOT choose arbitrarily
CustomSrtType Scenario 4 MUST ask None DO NOT infer arbitrarily
OutputConfig.MediaURL Output path Can use default Default rules DO NOT use shell variables
JobParams.roi Subtitle extraction MUST ask [[0.5,1],[0,1]] DO NOT set default arbitrarily
SourceLanguage User specifies or inferable Can use default Auto detect Use zh for Chinese only
TargetLanguage User specifies Can use default en Ask for other languages

TextSource Scenario Mapping:

Scenario Value Description
1 OCR_ASR Auto-detect subtitles
2 SubtitleFile Reviewed SRT
3, 4 SubtitleFile User-provided SRT

CustomSrtType Trigger Rules:

Condition Value
CaptionExtraction extracted SourceSrt
User provides subtitle (Scenario 4) MUST ask: SourceSrt / TargetSrt

Failure Protection Mechanism

HARD-GATE: After speech translation fails, DO NOT auto-switch to subtitle translation!

API Error Handling

ErrorCode Handling Action
Forbidden.SubscriptionRequired See ram-policies.md
InvalidParameter See api-parameters.md
InputConfig.Subtitle is invalid See troubleshooting.md
JobFailed Record JobId, ask user if retry needed

SRT Format Repair Flow

Detect empty subtitle entries → Delete empty entries → Renumber → Upload repaired file → Inform user

See troubleshooting.md for details.

CLI Command Templates

IMPORTANT: Before submitting API, MUST reference api-parameters.md to confirm parameter format!

See cli-commands.md for details.

Core Commands:

# Register media asset
aliyun ice register-media-info --input-url "oss://<bucket>/<object>" --media-type video --user-agent AlibabaCloud-Agent-Skills

# Submit subtitle extraction (use OSS path)
aliyun ice submit-iproduction-job \
  --function-name CaptionExtraction \
  --input "Media=oss://<bucket>/<object> Type=OSS" \
  --biz-output "Media=oss://<bucket>/<output>.srt Type=OSS" \
  --job-params '{"lang":"ch","roi":[[0.5,1],[0,1]]}' \
  --force \
  --user-agent AlibabaCloud-Agent-Skills

# Submit video translation
aliyun ice submit-video-translation-job \
  --user-agent AlibabaCloud-Agent-Skills

CLI Format Key Points:

  • Subtitle extraction uses command name submit-iproduction-job (lowercase, - separator)
  • --input and --biz-output format: space-separated string "Media=... Type=OSS", NOT JSON
  • --job-params format: JSON string
  • MUST add --force to skip plugin parameter validation
  • All ICE commands MUST add --user-agent AlibabaCloud-Agent-Skills

Documentation Reference

Document Content
workflow-details.md Detailed execution flow for 4 scenarios
cli-commands.md CLI command template library
troubleshooting.md Error handling details
api-parameters.md Complete API parameter documentation
ram-policies.md RAM permission requirements
cli-installation-guide.md CLI installation guide

Key Constraints

  • Before submitting API, MUST reference api-parameters.md to confirm parameter format
  • All ICE CLI commands MUST add --user-agent AlibabaCloud-Agent-Skills
  • Subtitle extraction (SubmitIProductionJob) uses oss:// format
  • Video translation (SubmitVideoTranslationJob) uses HTTP URL format, no signing needed
  • Local videos MUST first be uploaded to OSS, user MUST provide upload path
  • NeedFaceTranslate MUST be false
  • SpeechTranslate and SubtitleTranslate are mutually exclusive
  • InputConfig.Subtitle MUST use HTTPS format, DO NOT use oss://
  • Speech translation + SRT input requires SpeechTranslate.CustomSrtType
  • DO NOT infer translation mode from input type

Task Polling

Mandatory: MUST continuously poll task status until completion (State=Finished) or failure (State=Failed), DO NOT exit early!

Task Type Query Command Interval Timeout
Subtitle extraction QueryIProductionJob 30 seconds 5 minutes
Video translation get-smart-handle-job 30 seconds 30 minutes

Polling Logic:

Loop polling until:
  - State == "Finished" → Return result
  - State == "Failed" → Report error
  - Exceeds 30 minutes → Report TimeoutError

Prohibited: Return after single query / Skip polling and return JobId directly

Time Reference (3-minute video):

  • Subtitle-level translation: 3-5 minutes
  • Speech-level translation: 10-20 minutes

Result Retrieval

# Get media asset info
aliyun ice get-media-info --media-id "<MediaId>"

# Generate signed URL (for private Bucket)
aliyun oss sign oss://<bucket>/<object> --timeout 3600

End of Document

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