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- What's New
- Function Overview
- Service Overview
- Getting Started
-
User Guide
- Prerequisites
- Functions
- Permissions Management
- Domain Name Management
- Audio/Video Upload
- Media Asset Management
- Video Processing
- Global Settings
- Review Management (in OBT)
- Usage Query
- Data Analysis
- Viewing Monitoring Metrics
- Querying Real-Time Traces
- Appendix
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Application Examples
- Key query
- Watermark template management
- Media Asset Storage Mode Management
- Media file pre-loading
- Media file processing
- Statistical analysis
- Transcoded Output Management
- Media file category
- Media file management
- Transcoding template management
- Uploads media files
- Subtitle management
- Transcoding template set management
- Historical APIs
- Appendix
- Change History
- SDK Reference
-
FAQs
-
Product Consulting
- What Is the Relationship Between VOD and OBS?
- Is VOD Only Available on Huawei Cloud ECSs?
- Do I Need to Buy the CDN Service Before Using VOD?
- What Is CDN Used for?
- Do I Need to Obtain a License Before Running a VOD Business?
- What Is the Host IP Address for?
- Do I Need to Enable OBS Before Using VOD?
- Is There a Bandwidth Limit for Playing Videos Using VOD?
- Does VOD Support Real-Time Monitoring?
-
Billing
- How Long Is the Retention Period for My Resources After My Account Goes Into Arrears?
- Do I Need to Unsubscribe from VOD If I Do Not Use It?
- How Is VOD Traffic Billed?
- How Is a Transcoding Template Group Billed?
- How Is URL Pull Billed?
- How Do I Calculate the VOD CDN Traffic?
- How Is a Workflow Billed?
- Will I Be Billed Again If I Use the Same Device ID to Watch a Video Repeatedly?
- Is Audio and Video Review Charged?
-
Permissions Management
- Why Can't an IAM User View Media Files Uploaded by the Account on the Console?
- How Do I Implement Access Control on Uploaded Media Files?
- What Permissions Do I Need for Uploading Media Files?
- Does VOD Support User Group Permissions?
- Why Can't an IAM User Log In to the VOD Console After Obtaining the VOD FullAccess Permission?
-
Domain Name Management
- Do I Need to Prepare a Domain Name Before Using VOD?
- Can I Use My Own Domain Name?
- Why Can't I Add a Domain Name?
- How Do I Check Whether a Domain Name Has Been Enabled?
- How Many Domain Names Can I Add to One Account?
- How Do I Configure HTTPS Secure Acceleration?
- What Can I Do If the Message "The certificate and domain name do not match." Is Displayed During HTTPS Certificate Configuration?
- How Do I Use Different Domain Names Simultaneously When Multiple Domain Names Are Configured for VOD?
- Why Does the Domain Name Status Remain "Configuring"?
- Notifications
-
Upload
- What Media File Formats Does VOD Support?
- How Are Media Files Uploaded to VOD?
- Can I Upload Compressed Video Files?
- Is There Any Limit on the File Upload Size?
- Is There Any Limit on the Total Size of Videos?
- What Is the Maximum Length of a Video File Name?
- Why Does Video Uploading Take So Long?
- Why Can't the File Length Be Obtained After a Media File Is Uploaded to VOD?
- Does VOD Support Resumable Upload?
- How Do I Avoid Uploading Duplicate Files?
- Why Can't I Find My Video on the Console After a Video Has Been Uploaded?
- Why Am I Logged Out Automatically? Will This Cause Upload Failure?
- When Can I Play an Uploaded Media File?
- How Long Does It Take to Upload a Video File?
- Why Can't I Upload Media Files?
- Why Is the Thumbnail Not Displayed After Being Uploaded on the Console?
- Can I Upload Videos Using WeChat Mini Programs?
- Do I Need to Upload a Thumbnail for an Uploaded Video?
-
Media Processing
- How Do I View Video Details Locally?
- How Do I Add Subtitles to a Video?
- How Do I Export All Media Details from the VOD Console?
- Why Can't I View All Uploaded Video Files on the Snapshots Page?
- Does the Duration on Audio and Video Management Page Refer to the Duration of the Input File or the Transcoded Output?
- Does VOD Have System Presets?
- Which Input Formats Does VOD Transcoding Support?
- Which Output Formats Does VOD Support?
- How Do I Convert a Video to Multiple Outputs in Different Resolutions?
- Can I Use Multiple Transcoding Templates for a Video While Transcoding?
- Will I Be Billed for the Index File Generated After Transcoding to the HLS Format?
- Why Is the Output Resolution Inconsistent with That Configured in the Transcoding Template?
- Why Is Transcoding Sometimes Fast and Sometimes Slow?
- Does the Input Resolution for Video Transcoding Support 8K?
- Does Transcoding Change the Size of Audio and Video Files?
- Why Do I Fail to Delete a Media File?
- Why Only Two Outputs Are Created When Three Outputs Are Set in the Transcoding Template?
- Does VOD Support Transcoding Callbacks?
- Why Is the Video Duration Different from That Displayed in the Player After Video Transcoding or Segmentation?
- Why Does CDN Pre-loading Fail?
- Why Can't I Delete a Watermark Template?
-
Playback
- What Are the Differences Between DASH, HLS, and MP4 Files?
- How Do I Obtain the Streaming URL of a Media File?
- How Do I Play Media Files on a Mobile Device?
- Which Types of Files Can Be Previewed on the VOD Console?
- What If I Failed to Play HLS Videos?
- How Do I Stop HLS Videos from Freezing?
- What If the Uploaded Video File Can't Be Played?
- Can I Create a QR Code for My Video Playback URL?
- Do I Need to Transcode an Uploaded Video Before Playing It?
- Why Does a Video Fail to Be Played Using My Own Domain Name?
- Can I Play a Video If I Don't Buy a Transcoding Package?
- Why Does the Encrypted HLS Video Playback Failed?
- Is There Any Limit on the Number of Online Viewers?
- Why An Error Code 403 Is Returned When I Access the Playback URL?
- Can I Use My Own Player to Play Media Files Uploaded to VOD?
- Can I Replace the Domain Name in the Generated Playback URL with My Own Domain Name?
- How Do I Fix a Blurry Video?
- Why Can't I Obtain the Streaming URL of a Transcoded Video?
- Why Does Frame Freezing Occur During the Playback of a Transcoded Video?
- Why Cannot a Transcoded M3U8 Video Be Played After URL Validation Is Configured?
- Why Can't an Encrypted HLS Video Be Played After Being Transcoded for the Second Time?
-
APIs and SDKs
- How Do I Obtain a Temporary AK/SK Pair and Security Token?
- Why Is the File Duration Returned 0 When I Call the API for Querying Media Details?
- How Do I Fix the Error of "Failed to verify the tenant ID" When I Call a VOD API?
- Why Is"The throttling threshold has been reached" Returned When I Call an API to Delete a Media File?
- Does task_id Returned Mean that My Pre-loading Task Has Been Completed?
- What Should I Do If the Frequency of Calling the Key Query API Exceeds 100 Times per Minute?
- Why Is a Message Displayed Indicating that the Current Media File or Resource Status Does Not Support This Operation During Media File Processing?
- What Are the Programming Languages Supported by the Server SDK?
- Why Are the source_path and output_path Parameters Empty in the Return Result When the API for Querying Details About a Specified Media File Is Called?
- How Do I Delete an Uploaded Multipart Video If the Upload Is Canceled When the API Is Called to Upload a Video?
- Why Can't I Obtain the Thumbnail After Calling the API for Uploading a Video File?
- How Do I Set the Validity Period of the AK/SK and Security Token?
- Why Can't I Preview the Watermark Image on the Console After Calling the API for Image Upload?
-
Security
- How Do I Protect Audio and Video from Piracy?
- How Do I Prevent Secondary Distribution After Audios and Videos Are Downloaded?
- Does HLS Encryption Provide One Key for Each Video? Will the Key Expire?
- How Do I Encrypt Transcoded Videos Using HLS?
- What Is a Key URL? How Do I Obtain It?
- What If the URL Validation Expires?
- Can Audio Files Be Encrypted During HLS Encryption?
- What Are the Differences Between HLS Encryption and Hotlink Protection?
- Can Encrypted Videos Be Played After the URL for Obtaining Keys Is Changed?
- Will a Signed URL Become Invalid During Playback?
- Why Does the Encrypted HLS URL in the Original Streaming URL Remain Unchanged After the Encrypted HLS URL Is Changed?
- Does VOD Support the Function of Only Watching Videos on CloudSite But Not Downloading Them?
- Are Self-Signed HTTPS Certificates Supported?
- Statistics Analysis
-
Product Consulting
- Troubleshooting
- Videos
- General Reference
Copied.
Constraints
Before using VOD, you need to know the following constraints.
Resource Constraints
VOD has constraints on resources such as domain names and watermarks.
|
Item |
Description |
Constraint |
|---|---|---|
|
Region |
New users can use VOD only in CN North-Beijing4, AP-Bangkok, and AP-Singapore. |
- |
|
Domain name |
Maximum number of self-owned domain names that you can add on the VOD console.  NOTE:
The system automatically checks all domain names under your name and deletes domain names that have been idle for a long time. For details, see Configuring Domain Names. |
5 |
|
Pull from URLs |
Maximum number of media files that can be pulled at a time |
|
|
URL pull rate |
Global maximum rate for pulling audio/video files offline to VOD using the URLs of source audio/video files |
1 Gbit/s |
|
Watermarking |
Maximum number of watermarks that can be added to a video file at a time |
2 |
|
Categorization |
Maximum number of subcategories can be added to each category |
128 |
|
Labeling |
Maximum number of labels that you can add to a media file |
16 |
|
Referer validation |
Maximum number of domain names that can be added to a referer blacklist or whitelist |
100 |
|
Media pre-loading |
Maximum number of times that one subscriber can pre-load media files in a day |
1,000 |
Function Constraints
|
Item |
Description |
|---|---|
|
Domain name |
If a domain name has not been used for more than half a year, an error will be reported when you delete the domain name. In this case, submit a service ticket. |
|
Transcoding |
To retain transcoded outputs of different templates, you need to submit a service ticket to apply for this function. |
|
Subtitling |
Currently, only single-subtitle files can be uploaded on the console. To upload a multi-subtitle file, see Subtitle Management. The supported formats of single-subtitle and multi-subtitle files are different. |
API Constraints
VOD sets a limit on the number of API calls to prevent service interruption caused by repeated API calls in a short period of time.
|
Category |
API |
API Calls for a Single Tenant Per Minute |
API Calls for All Tenants Per Minute |
|---|---|---|---|
|
Media upload |
|
1,500 |
12,000 |
|
100 |
1,000 |
|
|
Media processing |
|
100 |
1,000 |
|
Media management |
|
100 |
1,000 |
|
Querying file information |
1,500 |
24,000 |
|
|
1,500 |
12,000 |
|
|
Media pre-loading |
|
100 |
1,000 |
|
Media category |
|
100 |
1,000 |
|
Key query |
Key query |
1,500 |
12,000 |
|
Statistical analysis |
|
100 |
1,000 |
|
Watermark template management |
|
100 |
1,000 |
|
Subtitle management |
Managing subtitles |
100 |
1,000 |
|
Transcoding template management |
|
100 |
1,000 |
|
Transcoding template set management |
|
100 |
1,000 |
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