Live recording feature records live stream images in real time according to the recording template bound to the push domain name, and then stores the recording files in VOD. The recording callback is used to push the information of recording files, including the start time and end time of recording, as well as recording file ID, size and download URL. You need to configure the server address for receiving recording callback messages in the callback template, and bind the template to the push domain name. When a recording event is triggered by a live stream, the Tencent Cloud CSS backend will call back the recording file information to the configured receiving server.

This document describes the fields in callback message notifications sent by Tencent Cloud CSS after a recording callback event is triggered.

Notes

• You need to understand how to configure callbacks and how you will receive messages via Tencent Cloud CSS before reading this document. For more information, see How to Receive Event Notification.
• The recording video files are stored in the VOD console by default. You need to activate the VOD service first and ensure the VOD service has no overdue payments.
• When you call the CreateRecordTask API, stream_param parameters carried in the user push URL will not be returned in the recording callback. Yet if you use other recording methods, such parameters will be returned in the recording callback.
• After HLS recording resumption is enabled, no callback will be returned for push interruptions, and only callbacks for the final generated file will be returned.

Recording Event Parameters

Event type parameters

Common callback parameters

Note：

key is the callback key in Event Center > Live Stream Callback, which is mainly used for authentication. We recommend filling in this field to ensure data security.

Callback message parameters

Sample callback message

{
"event_type":100,
"appid":12345678,
"app":yourapp,
"appname":yourappname,
"stream_id":"stream_test",
"channel_id":"stream_test",
"file_id":"1234567890",
"file_format":"hls",
"task_id":"UpTbk5RSVhRQ********************0xTSlNTQltlRVRLU1JAWW9EUb",
"start_time":1545047010,
"end_time":1545049971,
"duration":2962,
"file_size":277941079,
"stream_param":"stream_param=test",
"video_url":"http://12345678.vod2.myqcloud.com/xxxx/yyyy/zzzz.m3u8",
"sign":"ca3e25e**********09a9ae7281e300d",
"t":1545030873
}