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Last Updated: May 17, 2021

A large amount of media assets are generated after media upload and media processing are complete. ApsaraVideo VOD provides a unified and powerful media asset management service and allows you to manage media assets in the console or by calling operations. This topic describes the information, type, media asset management feature, methods to manage media assets, and scenarios of ApsaraVideo VOD.

What is media asset information?

During content production, a large amount of business data is generated, including audios, videos, images, and texts. Related data including the business data and metadata that describes the business data are called media asset information.

Media asset type

Information type



Basic information

  • Video information: includes the video ID, title, description, duration, thumbnail URL, status, creation time, file size, snapshot, category, tag, and storage region.

  • Image information: includes the image ID, title, URL, status, description, file size, category, width, height, creation time, tag, and storage region.

  • Information about attached media assets such as watermarks and subtitles: includes the title, URL, description, file size, business type, category, creation time, tag, and storage region.


Categories are globally configured and apply to all media asset types. A maximum of three category levels are supported. To configure categories, go to the Categories page in the ApsaraVideo VOD console or call the AddCategory operation.

Mezzanine file information

Includes the file name, duration, size, status, width, height, frame rate, URL, bitrate, output file type, and creation time.


Playback information

Includes the video stream bitrate, definition, duration, encryption status, playback URL, format, frame rate, width, height, stream type, transcoding job ID, watermark ID, stream status, creation time, and modification time.


For more information, see Audio and video playback.

Media asset management features

Unified and powerful media asset management services can reduce the cost to maintain a large amount of content.

ApsaraVideo VOD allows you to obtain media asset information, update media asset information, search for media asset information, download media files, and delete media files.




Obtain media asset information

Obtains the basic information about a media asset based on the media asset ID. You must call operations based on the media asset type.

Obtain media asset information

Update media asset information

Modifies media asset information such as the title, description, category, and tag. Parameters such as the size, status, and storage region cannot be modified.

Update media asset information

Search for media asset information

Searches for basic information about media assets. The title and description parameters use a tokenizer to support fuzzy search. The SearchMedia operation and the media asset search protocol apply to all media asset types.

Search for media asset information

Download media files

  • Audio and video download: You can call the GetMezzanineInfo operation to obtain the URLs of audio and video mezzanine files and then download mezzanine files.

  • Image download: You can obtain the URLs of image files and then download mezzanine files. For more information, see Obtain media asset information and Search for media assets.

  • Video caching: You can cache videos for offline playback on mobile devices. To use this feature, ensure that your player integrate ApsaraVideo Player SDKs.

Download media files

Delete media files

ApsaraVideo VOD can generate multiple types of media files, which include mezzanine files, transcoded stream files, video snapshot files, and uploaded image files. ApsaraVideo VOD allows you to delete media files at granularity level.

Delete media files

Media asset management methods

You can manage media assets in the ApsaraVideo VOD console or by calling the API operations.

  • Console management

    After ApsaraVideo VOD is activated, log on to the console and go to the Media Files page to manage media assets. You can upload, delete, update, view, and search for audio, video, and image files. When you delete media asset information, mezzanine files are permanently deleted and cannot be recovered. For more information, see Media asset management.

  • Call the API operations

    You can call the API operations provided by ApsaraVideoVOD to search for audio, video, and image files, view media file details, update multiple media files at a time, and delete API operations. For more information, see API references of media asset management.


  • You can manage the complete metadata of multiple types of media assets such as videos and images. This reduces the cost to maintain a large amount of content.

  • You can obtain media asset information in multiple ways. The title and description parameters use a tokenizer to improve the search performance so that you can quickly find the required information. This facilitates long-term and frequent use of media content.

  • Media assets are associated with each other such as audios, videos, images, texts, stream information, and AI data information are associated. For one media asset, you can conveniently find associated media assets. For example, you can conveniently find the snapshots, thumbnail, playback information, and AI data associated with a video.

  • Materials are provided for subsequent content production. You can use existing materials in multiple content production stages such as editing and transcoding.

  • URLs are generated for all files involved in media asset management. This allows you to conveniently share and distribute these files.