Alibabacloud Video Translation

Alibaba Cloud IMS (Intelligent Media Services) based video translation Skill. Supports subtitle extraction (ASR/OCR), translation, and speech synthesis translation modes. Trigger words: "视频翻译", "translate video", "翻译视频", "字幕翻译", "video translation"

Video Translation Skill

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

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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

text

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

text

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:

bash

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

Save both formats after upload:

text

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)

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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!

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Phase 1: Translation Mode Confirmation (BLOCKING)

text

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!

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Phase 2: Subtitle Processing Confirmation (BLOCKING)

text

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)

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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)))"

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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!

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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

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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

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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

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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

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

See troubleshooting.md for details.

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CLI Command Templates

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

See cli-commands.md for details.

Core Commands:

bash

# 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

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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

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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

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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:

text

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

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Result Retrieval

bash

# 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

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End of Document