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Torch Object Storage

Data processing

Template management

Template management allows you to create and manage task templates, such as those for audio and video transcoding. A template defines parameters such as container and codec formats, resolution, and bitrate. When creating a transcoding task, you can select a template to automatically configure the task.

Template type

Type	Description
Audio transcoding	Templates that define the following audio output parameters: output format, sample format, sample rate, number of channels, and segment start time and duration. For more information about system default templates, see Audio transcoding operator.
Video transcoding	Templates that define the following video and audio output parameters: output format, video codec format, bitrate control policy, resolution, frame rate, audio encoding format, sample rate, and number of audio channels. For more information about system default templates, see Video transcoding operator.
System default template	Default templates provided by the system. You can select them directly when you create a transcoding task.
Custom template	Templates that you create based on your needs. These templates are ideal for scenarios requiring customized output formats, clarity, bitrate, and audio parameters.

Creating a custom template

In the left navigation pane, click Buckets.

In the top menu bar, select the project of the bucket you want to manage.

On the Buckets page, click the name of the bucket.

In the left navigation pane, select Data processing > Template management.

On the Template management page, select the desired tab and create a template.

Audio transcoding

Video transcoding

Click Create audio transcoding template, and configure the following parameters.

Parameter	Required	Description
Template name	Yes	Enter a name for the audio transcoding template. This name will be used to identify the template in the template list and when you create tasks. The following constraints apply: Only uppercase and lowercase letters (A–Z, a–z), numbers (0–9), underscore (_), hyphen (-), and period (.) are allowed. Length must not exceed 64 characters.
Start time	No	Specify where in the source audio transcoding should begin. If this is not specified, transcoding will start from the beginning of the audio.
Duration	No	Specify how much of the source audio should be transcoded. If this is not specified, the entire audio will be processed.
Output format	Yes	Select an output format for the output audio. Options: WAV, MP3, AAC, FLAC, OGA, AC3, and OPUS.
Sampling format	No	Select a storage format for the audio sample data. Currently, only s16 is available.
Sampling rate	Yes	Select a sample rate for the output audio. The sample rate determines how many samples are captured per second. A higher value yields better quality. Options: 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 88200, and 96000 Hz.
Channel number	No	Specify the number of output audio channels. If this is not specified, the number of channels will be the same as the source audio. Options: 1 (Mono) or 2 (Stereo).

Click Create video transcoding template and configure the parameters in the order displayed in the wizard.

Basic information

Parameter	Description
Template name	Enter a name for the video transcoding template. This name will be used to identify the template in the template list and when you create tasks. The following constraints apply: Only uppercase and lowercase letters (A–Z, a–z), numbers (0–9), underscore (_), hyphen (-), and period (.) are allowed. Length must not exceed 64 characters.
Transcoding type	Select the transcoding task type. Options: Video transcoding and Audio transcoding.
Output format	Select a container format for the output file. Options: MP4, TS, and HLS.
Start time	Specify where in the source video transcoding should begin. If this is not specified, transcoding will start from the beginning of the video.
Duration	Specify how much of the source video should be transcoded. If this is not specified, the entire video will be processed.

Video parameters

Parameter	Description
Delete video stream	On: The output file retains only the audio content and not the video stream. Off: You can continue to configure video parameters.
Video coding format	Select a codec for the output video. Options: H.264 and H.265.
Bitrate control policy	Select a method for managing the video bitrate: No settings, Bitrate control factor, or Custom bitrate. Bitrate control factor: Enter an integer between 1 and 51. 0 means not set. A lower value yields better quality and a larger file size, and vice versa. Custom bitrate: Enter an integer between 10 and 50,000 Kbps. A higher value yields better quality and a larger file size.
Image resolution	Select a resolution mode for the output video. Options: Retain source video image resolution: The output video will have the same resolution as the source video. By width settings image resolution: Specify a custom width and height for the output video. Please note that: Both the width and height must be even numbers between 128 and 4096. If you specify only one dimension, the other is automatically scaled proportionally to avoid distortion.
Video color format	Select a color format for the output video to determine how pixel data is represented. Currently, only yuv420p is available.
Video frame rate	Specify the number of frames per second (FPS) for the output video.

Audio parameters

Parameter	Description
Delete audio stream	On: The output file does not retain the audio stream. Off: You can continue to configure audio parameters.
Audio coding format	Select an encoding format for the output audio. Options: MP3 and AAC.
Audio bitrate	An audio bitrate is only required after an audio codec has been selected Enter an integer between 8 and 1000 Kbps. A higher value yields better quality and a larger file size.
Sampling format	Select a storage format for the audio sample data. Options: fltp, s16p, and s32p.
Sampling rate	Select a sample rate for the output audio. The sample rate determines how many samples are captured per second. A higher value yields better quality. Options: 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, and 48000 Hz.
Channel number	Specify the number of output audio channels. Options: 1 (Mono) or 2 (Stereo).

Once you have finished configuring, click OK.

Other operations

The Template management page shows you the list of created templates and lets you perform operations on them.

Operation	Steps
Viewing template details	On the audio transcoding or video transcoding tab, click a template to view its details, including Basic information, Video parameters, and Audio parameters.
Filter templates	At the top of the list, select either System default template or Custom template to filter templates by type, or search for a template using its ID.
Delete a template	Click Delete in the Actions column of the template you want to remove. Then, follow the instructions on the page to finish deleting it.

Last updated: 2026.09.04 10:43:02