The LVB screencapturing feature is used to take screenshots of a real-time live stream at regular intervals and generate images. You can get the information of screenshots from callback notifications. Such screenshot data can be used for porn detection, live room cover generation, and other scenarios.

Notes

• You need to understand how to configure the callback feature and receive callback messages on Tencent Cloud LVB before reading this document. For more information, please see How to Receive Event Notification.
• The screenshot information obtained after a screencapturing callback event is triggered can be used for porn detection, live room cover generation, and other scenarios.

Screencapturing Event Parameter Description

Event type parameters

Common callback parameters

Note：

<span id="key"></span>key is the callback key in Feature Template > Callback Configuration, which is mainly used for authentication. In order to protect the security of your data, we recommend you enter it.

Callback message parameters

Sample callback message

{
"event_type":200,

"stream_id":"stream_name",

"channel_id":"stream_name",

"create_time":1545030273,

"file_size":7520,

"width":640,

"height":352,

"pic_url":"/2018-12-17/stream_name-screenshot-19-06-59-640x352.jpg",

"pic_full_url":"http://testbucket-1234567890.cos.region.myqcloud.com/2018-12-17/stream_name-screenshot-19-06-59-640x352.jpg",

"sign":"ca3e25e5dc17a6f9909a9ae7281e300d",

"t":1545030873
}