What is a TargetURI template - Intelligent Media Management

A TargetURI template dynamically generates a URI by replacing placeholders with actual values during processing. For example: oss://{bucket}/{tags.custom}/{dirname}/{barename}.{autoext}.

Syntax

Similar to the string format() method in Python 3, variables are enclosed in curly braces.
Variables include public variables and operator-specific variables. You can reference these built-in variables directly in the default namespace.
Variables can also be derived from the Tags parameter in a request. These variables are located in the tags namespace.
To output literal curly braces, escape them by doubling them, such as {{ for { and }} for }.

Public variables

Parameter	Description	Example
bucket	The name of the destination bucket.	test-bucket
key	The object key in the bucket. This is equivalent to `{dirname}/{basename}`.	path1/path2/name.png
dirname	The object path, without the filename.	path1/path2
barename	The original filename without the extension.	name
basename	The original filename with the extension.	name.png
ext	The file extension of the uploaded object. The extension is derived from the detected MIME type or the object key.	png
year	The year the object was uploaded, in `yyyy` format.	2022
mon	The month the object was uploaded, in `mm` format.	04
day	The day the object was uploaded, in `dd` format.	22
hour	The hour the object was uploaded, in `HH` format.	14
min	The minute the object was uploaded, in `MM` format.	38
sec	The second the object was uploaded, in `SS` format.	25
t_year	The year the task was created, in `yyyy` format.	2022
t_mon	The month the task was created, in `mm` format.	04
t_day	The day the task was created, in `dd` format.	22
t_hour	The hour the task was created, in `HH` format.	14
t_min	The minute the task was created, in `MM` format.	38
t_sec	The second the task was created, in `SS` format.	25

Operator-specific variables

The following variables are available for an office conversion task.

Parameter	Description	Example
index	The output index, starting from 1. For Word, PDF, and PPT files, this is the page number. For Excel files, the format is `sheetindex_sheetsubindex`. `sheetindex`: The index of the sheet, starting from 1. `sheetsubindex`: The page number within the specified sheet, starting from 1.	1 6_12
sheetname	For Excel files, this is the worksheet name.	sheet1
autoext	The file extension of the output object.	jpg

The following variables are available for a media transcoding task.

Parameter	Description	Example
streamindex	The audio or video stream ID. The IDs for audio and video streams increment separately, starting from 0. This variable applies to multi-output scenarios, such as frame capturing, sprite generation, animated image creation, and audio transcoding.	0
index	The output file index, starting from 1. This variable applies to multi-output scenarios, such as segmented transcoding and frame capturing.	1
resolution	The transcoding resolution, available only for video transcoding.	1920x1080
autoext	The file extension of the output object.	ts