Media asset search protocol - API Reference| Alibaba Cloud Documentation Center

Description

This topic describes the syntax of the ApsaraVideo for VOD media asset search protocol. The protocol needs to be used together with the SearchMedia operation. This protocol is a real-time search protocol that integrates retrieval, filtering, sorting, and page flip features. It can be used to search for media asset information generated by ApsaraVideo for VOD, including video, audio, and image information.

Syntax

Based on syntax rules defined in the media asset search protocol, media asset fields are classified into Response field, Exact match, Fuzzy match, Multi-value query, Range query, and Sorting field. For more information about all media asset fields supported by ApsaraVideo for VOD and applicable syntax rules, see Media.

Note: When you call an API, you need to perform URL encoding for the query statement and use single-byte punctuation marks, such as the equal sign (=), double quotation marks (" "), single quotation marks (' '), and parentheses ( ). For more information about special characters defined in the media asset search protocol, see Special characters.

The following table lists the syntax defined in the media asset search protocol and examples.

Parameter	Description	Syntax	Example
Response field	Specifies the fields returned in the query results. Only the media ID, creation time, and media type are returned by default.	field1,field2	Response field
Exact match	Searches for media asset information that exactly matches the specified field value.	field = value	Exact match
Fuzzy match	Searches for media asset information that contains the specified characters or string.	field in ('value1','value2') or field = 'value'	Fuzzy match
Multi-value query	Specifies multiple field values to search for media asset information that matches one of the specified field values.	field in ('value1','value2')	Multi-value query
Range query	Specifies an open or closed interval to search for media asset information that matches a field value in the specified range.	field = (value1,value2)	Range query
Sorting field	Specifies the sorting fields used to sort the queried results and the sorting order (Desc or Asc) for each sorting field. Multiple sorting fields are listed from left to right based on their priorities in descending order.	SortBy=field:Desc	Sorting field

Special characters

Parameter	Description	Syntax
and	Connects two filter criteria to search for media asset information that meets both filter criteria.	field1 = 'value' and field2 = 'value '
or	Connects two filter criteria to search for media asset information that meets either filter criterion. In this case, the filter criteria start with the left parenthesis "(" and end with the right parenthesis ")".	(field1 = 'value1' or field2 = 'value2')
( )	The parentheses. They specify a range of field values to be queried in a range query.	field = ('value1','value2')
( )	The parentheses. They specify the OR relationship between multiple filter criteria.	(field1 = 'value1' or field2 = 'value2')
' '	The single quotation marks. They specify a string as the field value to be queried. The specified string starts with a single quotation mark (') and ends with a single quotation mark (').	field = 'value '
,	The comma. This parameter is used for multi-value query. This parameter separates multiple field values to be queried in a multi-value query.	field in ('value1','value2')
( ) []	Specifies an open or closed interval for a range query to indicate whether the endpoints of the interval are included in or excluded from the specified range.	field = ['value1','value2']
in	Specifies multiple field values to be queried in a multi-value query to search for media asset information that matches one of the specified field values.	field in ('value1','value2')

Media

Currently, ApsaraVideo for VOD allows you to search for video, audio, and image information. The following tables list the syntax supported by various media asset fields.

Video

Note: You can specify a maximum of 100 video IDs to be queried in a multi-value query.

Parameter	Type	Description	Response field	Exact match	Fuzzy match	Multi-value query	Range query	Sorting field
VideoId	String	The ID of the video.	✓	✓	✓
AppId	String	The ID of the application.	✓		✓
CateId	Long	The ID of the category.	✓	✓
CateName	String	The name of the category.	✓
StorageLocation	String	The bucket.	✓	✓	✓
Title	String	The title of the video.	✓		✓	✓
Tags	String	The tag of the video.	✓		✓	✓
Description	String	The description of the video.	✓		✓	✓
Status	String	The video status.	✓			✓
MediaSource	String	The video source.	✓			✓
PreprocessStatus	String	The preprocessing status.	✓	✓
Size	Long	The video size.	✓				✓
Duration	Float	The video duration.	✓				✓
CreationTime	String	The time when the video information was created.	✓				✓	✓
ModificationTime	String	The time when the video information was last modified.	✓				✓	✓
CoverURL	String	The URL of the video thumbnail.	✓
Snapshots	String[]	The list of automatic snapshots.	✓
SpriteSnapshots	String[]	The list of sprite snapshots.	✓
DownloadSwitch	String	The download switch.	✓
TranscodeMode	String	The transcoding mode.	✓

Audio

Parameter	Type	Description	Response field	Exact match	Fuzzy match	Multi-value query	Range query	Sorting field
AudioId	String	The ID of the audio.	✓	✓
AppId	String	The ID of the application.	✓		✓
CateId	Long	The ID of the category.	✓	✓
CateName	String	The name of the category.	✓
StorageLocation	String	The bucket.	✓	✓	✓
Title	String	The title of the audio.	✓		✓	✓
Tags	String	The tag of the audio.	✓		✓	✓
Description	String	The description of the audio.	✓		✓	✓
Status	String	The audio status.	✓			✓
MediaSource	String	The audio source.	✓			✓
PreprocessStatus	String	The preprocessing status.	✓	✓
Size	Long	The audio size.	✓				✓
Duration	Float	The audio duration.	✓				✓
CreationTime	String	The time when the audio information was created.	✓				✓	✓
ModificationTime	String	The time when the audio information was last modified.	✓				✓	✓
CoverURL	String	The URL of the audio thumbnail.	✓
Snapshots	String[]	The list of automatic snapshots.	✓
SpriteSnapshots	String[]	The list of sprite snapshots.	✓
DownloadSwitch	String	The download switch.	✓
TranscodeMode	String	The transcoding mode.	✓

Image

Parameter	Type	Description	Response field	Exact match	Fuzzy match	Multi-value query	Range query	Sorting field
ImageId	String	The ID of the image.	✓	✓
AppId	String	The ID of the application.	✓		✓
CateId	Long	The ID of the category.	✓	✓
CateName	String	The name of the category.	✓
StorageLocation	String	The bucket.	✓	✓	✓
FileName	String	The file name of the image.	✓		✓	✓
Title	String	The title of the image.	✓		✓	✓
Tags	String	The tag of the image.	✓		✓	✓
Description	String	The description of the image.	✓		✓	✓
Status	String	The image status.	✓			✓
CreationTime	String	The time when the image information was created.	✓				✓	✓
ModificationTime	String	The time when the image information was last modified.	✓				✓	✓
URL	String	The URL of the image.	✓

AttachedMedia

Parameter	Type	Description	Response field	Exact match	Fuzzy match	Multi-value query	Range query	Sorting field
MediaId	String	The ID of the attached media asset.	✓	✓
AppId	String	The ID of the application.	✓		✓
CateId	Long	The ID of the category.		✓
Categories	Category[]	The category ID list.	✓
StorageLocation	String	The bucket.	✓	✓	✓
FileName	String	The file name of the attached media asset.	✓		✓	✓
Title	String	The title of the attached media asset.	✓		✓	✓
Tags	String	The tags of the attached media asset.	✓		✓	✓
Description	String	The description of the attached media asset.	✓		✓	✓
Status	String	The status of the attached media asset.	✓			✓
CreationTime	String	The time when the attached media asset was created.	✓				✓	✓
ModificationTime	String	The time when the attached media asset was last modified.	✓				✓	✓
URL	String	The URL of the attached media asset.	✓

PreprocessStatus

Specifies the preprocessing status. Only preprocessed videos can be played as live streams in the production studio.

Value	Description	Remarks
UnPreprocess	Indicates that the video has not been processed.	The initial status.
Preprocessing	Indicates that the video is being preprocessed.	-
PreprocessSucceed	Indicates that the video has been preprocessed.	-
PreprocessFailed	Indicates that the video fails to be preprocessed.	-

DownloadSwitch

Specifies the offline download switch. A video or audio can be downloaded in offline mode only when the download switch is turned on.

Value	Description	Remarks
on	Indicates that the switch is turned on.	The initial status, in which the video or audio can be downloaded in offline mode.
off	Indicates that the switch is turned off.	The video or audio cannot be downloaded in offline mode.

MediaSource

Specifies the media source.

Value	Description	Remarks
general	Indicates that the media file is uploaded to ApsaraVideo for VOD in simple upload mode.	-
short_video	Indicates that the media file is uploaded to ApsaraVideo for VOD through a short video SDK.	For more information, see Short video SDK.
editing	Indicates that the media file is uploaded to ApsaraVideo for VOD through a video production task.	For more information, see ProduceEditingProjectVideo.
live	Indicates that the media file is uploaded to ApsaraVideo for VOD through live stream recording.	-

TranscodeMode

Specifies the transcoding mode. After a media file is uploaded to ApsaraVideo for VOD, it can be played depending on the processing logic. The processing method varies in different transcoding modes.

Value	Description	Remarks
FastTranscode	Indicates normal transcoding.	The default mode in which the media file is transcoded immediately after being uploaded and can be played only after transcoding.
NoTranscode	Indicates distribution without transcoding.	The media file is not transcoded after being uploaded and can be immediately played without transcoding.
AsyncTranscode	Indicates distribution with transcoding.	The media file can be played immediately and transcoded asynchronously after being uploaded.