Torch Object Storage
Torch Object Storage
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- Documentation
Torch Object StorageUser GuideData processingMedia processingSnapshot
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Snapshot
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The snapshot feature allows you to capture a single frame from a video at a specific time and resize it to your desired dimensions. This topic introduces the parameters and provides examples of the snapshot feature.
Billing notes
- Using the snapshot feature incurs fees for frame extraction, requests, and data transfer. For billing details, see Data processing, Requests, and Data transfer.
- Data retrieval fees will apply when extracting frames from videos stored in Infrequent Access Storage or Flashback Archive. These fees are calculated based on the size of the video frame. For more information, see Data retrievals.
Notes
- For supported video formats, see the Constraints and limitations section in Overview.
- TOS does not save video frames by default. You can save a frame in one of two ways:
- Manually download the frame and save it locally.
- Add persistence parameters to the processing URL to save the frame to a designated bucket. For more information, see Saving processed results.
Supported parameters
Parameter | Description | Value | Required |
Parameter | Description | Value | Required |
t | Specifies the timestamp at which the frame is extracted from the video. |
| Yes |
w | Specifies the width of the video frame. If it is set to 0, the width is calculated automatically based on the original aspect ratio. |
| No |
h | Specifies the height of the video frame. If it is set to 0, the height is calculated automatically based on the original aspect ratio. tip If both w and h are set to 0, the output retains the original video dimensions. |
| No |
m | Specifies the snapshot mode. |
tip A keyframe is a specific frame in a video or animation that defines an important scene or state. However, due to factors like encoding, processing, or transmission, the exact timing of a keyframe may not always be perfectly precise. | No |
f | Specifies the output format. |
| No |
ar | Specifies whether to automatically rotate the video frame based on video metadata. |
| No |
Examples
- Use the default mode to extract the frame at 26,000 ms. Resize the image to a width of 400 px and a height of 200 px. Set the output format to jpg. Example:
- Processed result:
-
- Use the fast mode to extract the frame at 26,000 ms. Resize the image to a width of 400 px and a height of 200 px. Set the output format to jpg. Example:
- Processed result:
-
Last updated: 2026.02.04 17:11:22
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