实时音视频启动转推任务-服务端 API -文档中心-腾讯云

1. 接口描述

接口请求域名： trtc.tencentcloudapi.com 。

接口说明：
启动一个混流转推任务，将 TRTC 房间的多路音视频流混成一路音视频流，编码后推到直播 CDN 或者回推到 TRTC 房间。也支持不转码直接转推 TRTC 房间的单路流。启动成功后，会返回一个 SdkAppid 维度唯一的任务 Id（TaskId）。您需要保存该 TaskId，后续需要依赖此 TaskId 更新和结束任务。可以参考文档：功能说明和常见问题

注意：
您可以在控制台开通旁路转推回调功能，对转推 CDN 状态的事件进行监控，回调请参考文档：旁路转推回调说明
您发起混流转推任务时，可能会产生如下费用：
MCU 混流转码费用，请参考文档：云端混流转码计费说明
转推非腾讯云 CDN 费用，请参考文档：云端转推计费说明

默认接口请求频率限制：20次/秒。

推荐使用 API Explorer

点击调试

API Explorer 提供了在线调用、签名验证、SDK 代码生成和快速检索接口等能力。您可查看每次调用的请求内容和返回结果以及自动生成 SDK 调用示例。

2. 输入参数

以下请求参数列表仅列出了接口请求参数和部分公共参数，完整公共参数列表见公共请求参数。

参数名称	必选	类型	描述
Action	是	String	公共参数，本接口取值：StartPublishCdnStream。
Version	是	String	公共参数，本接口取值：2019-07-22。
Region	是	String	公共参数，详见产品支持的地域列表，本接口仅支持其中的: ap-beijing, ap-guangzhou, ap-hongkong, ap-shanghai 。
SdkAppId	是	Integer	TRTC的SdkAppId，和转推的房间所对应的SdkAppId相同。示例值：1400188366
RoomId	是	String	主房间信息RoomId，转推的TRTC房间所对应的RoomId。示例值：room_1234
RoomIdType	是	Integer	主房间信息RoomType，必须和转推的房间所对应的RoomId类型相同，0为整型房间号，1为字符串房间号。示例值：1
AgentParams	是	AgentParams	转推服务加入TRTC房间的机器人参数。示例值：AgentParams
WithTranscoding	是	Integer	是否转码，0表示无需转码，1表示需要转码。是否收取转码费是由WithTranscoding参数决定的，WithTranscoding为0，表示旁路转推，不会收取转码费用，WithTranscoding为1，表示混流转推，会收取转码费用。示例值：1
AudioParams	否	McuAudioParams	转推流的音频编码参数。由于音频是必转码的（不会收取转码费用），所以启动任务的时候，必须填写。示例值：AudioParams
VideoParams	否	McuVideoParams	转推流的视频编码参数，不填表示纯音频转推。示例值：VideoParams
SingleSubscribeParams	否	SingleSubscribeParams	需要单流旁路转推的用户上行参数，单流旁路转推时，WithTranscoding需要设置为0。示例值：SingleSubscribeParams
PublishCdnParams.N	否	Array of McuPublishCdnParam	转推的CDN参数。和回推房间参数必须要有一个。示例值：PublishCdnParams
SeiParams	否	McuSeiParams	混流SEI参数示例值：SeiParams
FeedBackRoomParams.N	否	Array of McuFeedBackRoomParams	回推房间信息，和转推CDN参数必须要有一个。注：回推房间需使用10.4及以上SDK版本，如您有需求，请联系腾讯云技术支持。示例值：FeedBackRoomParams

3. 输出参数

参数名称	类型	描述
TaskId	String	用于唯一标识转推任务，由腾讯云服务端生成，后续更新和停止请求都需要携带TaskiD参数。示例值：5df46eb2-8e4b-490e-9c3c-dbd3b84faefc
RequestId	String	唯一请求 ID，由服务端生成，每次请求都会返回（若请求因其他原因未能抵达服务端，则该次请求不会获得 RequestId）。定位问题时需要提供该次请求的 RequestId。

4. 示例

示例1 发起音视频混流转推 CDN

无

输入示例

POST / HTTP/1.1
Host: trtc.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartPublishCdnStream
<公共请求参数>

{
    "AgentParams": {
        "MaxIdleTime": 30,
        "UserSig": "eJw1zV8LgjAUBfCvInsO2dStGfQSQUb2pFJvsnLJJZW1LekPffdc6X08v8O5b5Snmd9LjRYeCnyMZt4vgUp2Fi7wB6vtuVRC207q0kpjSzIVTXUVSkE11EiEMeE8ZGw0*VCg5SCcDeRuBAutiwkLeRRwOo*nMajduy5O*gIaus9qel9vX*lJbHJmyDMxuKFFI27tsT*I1S6pl*jzBb*IOTE_",
        "UserId": "trtc_partner_test_1"
    },
    "AudioParams": {
        "AudioEncode": {
            "SampleRate": 48000,
            "Codec": 0,
            "BitRate": 64,
            "Channel": 2
        }
    },
    "VideoParams": {
        "VideoEncode": {
            "Height": 720,
            "Width": 1280,
            "Fps": 15,
            "BitRate": 1536,
            "Gop": 2
        },
        "LayoutParams": {
            "PureAudioHoldPlaceMode": 0,
            "MixLayoutMode": 4,
            "MixLayoutList": [
                {
                    "LocationX": 0,
                    "LocationY": 0,
                    "UserMediaStream": {
                        "StreamType": 0,
                        "UserInfo": {
                            "RoomIdType": 0,
                            "RoomId": "295066",
                            "UserId": "Trtc_User_0"
                        }
                    },
                    "ZOrder": 0,
                    "ImageHeight": 720,
                    "ImageWidth": 640,
                    "RenderMode": 0
                },
                {
                    "LocationX": 640,
                    "LocationY": 0,
                    "UserMediaStream": {
                        "StreamType": 0,
                        "UserInfo": {
                            "RoomIdType": 0,
                            "RoomId": "295066",
                            "UserId": "Trtc_User_1"
                        }
                    },
                    "ZOrder": 0,
                    "ImageHeight": 720,
                    "ImageWidth": 640,
                    "RenderMode": 0
                }
            ]
        },
        "BackGroundColor": "0xFF0000",
        "WaterMarkList": [
            {
                "WaterMarkType": 0,
                "WaterMarkImage": {
                    "LocationX": 64,
                    "LocationY": 64,
                    "WaterMarkHeight": 64,
                    "WaterMarkWidth": 64,
                    "WaterMarkUrl": "https://xkt-course-1304449343.cos.ap-beijing.myqcloud.com/test/mark/37f9eb62-ca72-430e-bfca-e700b59b20e0.png",
                    "ZOrder": 3
                }
            }
        ]
    },
    "PublishCdnParams": [
        {
            "PublishCdnUrl": "rtmp://3891.livepush.myqcloud.com/live/trtc_publishcdn_test1",
            "IsTencentCdn": 1
        }
    ],
    "RoomIdType": 0,
    "SdkAppId": 1400188366,
    "WithTranscoding": 1,
    "RoomId": "295066"
}

输出示例

{
    "Response": {
        "TaskId": "-m97l2ZU7vxyBSmXYsRx1Xy9Kf4bVVfbbhSKC4K-4pycoZWKv542xbi139uTvGt1zAHoAQ..",
        "RequestId": "b934c535-8d82-4f52-bd52-a1cbb043c4be"
    }
}

示例2 发起纯音频混流转推 CDN

无

输入示例

POST / HTTP/1.1
Host: trtc.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartPublishCdnStream
<公共请求参数>

{
    "AgentParams": {
        "MaxIdleTime": 30,
        "UserSig": "eJw1zV8LgjAUBfCvInsO2dStGfQSQUb2pFJvsnLJJZW1LekPffdc6X08v8O5b5Snmd9LjRYeCnyMZt4vgUp2Fi7wB6vtuVRC207q0kpjSzIVTXUVSkE11EiEMeE8ZGw0*VCg5SCcDeRuBAutiwkLeRRwOo*nMajduy5O*gIaus9qel9vX*lJbHJmyDMxuKFFI27tsT*I1S6pl*jzBb*IOTE_",
        "UserId": "trtc_partner_test_1"
    },
    "AudioParams": {
        "AudioEncode": {
            "SampleRate": 48000,
            "Codec": 0,
            "BitRate": 64,
            "Channel": 2
        },
        "SubscribeAudioList": [
            {
                "UserInfo": {
                    "RoomIdType": 0,
                    "RoomId": "295066",
                    "UserId": "Trtc_User_0"
                }
            },
            {
                "UserInfo": {
                    "RoomIdType": 0,
                    "RoomId": "295066",
                    "UserId": "Trtc_User_1"
                }
            }
        ]
    },
    "PublishCdnParams": [
        {
            "PublishCdnUrl": "rtmp://3891.livepush.myqcloud.com/live/trtc_publishcdn_test1",
            "IsTencentCdn": 1
        }
    ],
    "RoomIdType": 0,
    "SdkAppId": 1400188366,
    "WithTranscoding": 1,
    "RoomId": "295066"
}

输出示例

{
    "Response": {
        "RequestId": "388014ec-a0b8-4b8f-86bc-1f467448f5f0",
        "TaskId": "-m9lnV5U7nj4rkLBWMXF9n8-EohONCXbalWuLYK-4pycoZWQndibcqSVnrlqKF5om7EIDVk4awE."
    }
}

示例3 发起单流音视频旁路转推 CDN

无

输入示例

POST / HTTP/1.1
Host: trtc.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartPublishCdnStream
<公共请求参数>

{
    "AgentParams": {
        "MaxIdleTime": 30,
        "UserSig": "eJw1zV8LgjAUBfCvInsO2dStGfQSQUb2pFJvsnLJJZW1LekPffdc6X08v8O5b5Snmd9LjRYeCnyMZt4vgUp2Fi7wB6vtuVRC207q0kpjSzIVTXUVSkE11EiEMeE8ZGw0*VCg5SCcDeRuBAutiwkLeRRwOo*nMajduy5O*gIaus9qel9vX*lJbHJmyDMxuKFFI27tsT*I1S6pl*jzBb*IOTE_",
        "UserId": "trtc_partner_test_1"
    },
    "AudioParams": {
        "AudioEncode": {
            "SampleRate": 48000,
            "Codec": 0,
            "BitRate": 64,
            "Channel": 2
        }
    },
    "VideoParams": {
        "VideoEncode": {
            "Height": 720,
            "Width": 1280,
            "Fps": 15,
            "BitRate": 1536,
            "Gop": 2
        }
    },
    "SingleSubscribeParams": {
        "UserMediaStream": {
            "StreamType": 0,
            "UserInfo": {
                "RoomIdType": 0,
                "RoomId": "295066",
                "UserId": "Trtc_User_0"
            }
        }
    },
    "PublishCdnParams": [
        {
            "PublishCdnUrl": "rtmp://3891.livepush.myqcloud.com/live/trtc_publishcdn_test1",
            "IsTencentCdn": 1
        }
    ],
    "RoomIdType": 0,
    "SdkAppId": 1400188366,
    "WithTranscoding": 0,
    "RoomId": "295066"
}

输出示例

{
    "Response": {
        "TaskId": "-m97l2ZU7tq6nEsHR89259B8aCDblqnbGhWKC4K-4pycoZWpyHnld1jC9aCD+EU7V8WRAQ..",
        "RequestId": "f23d95bf-ddaf-4d0c-86c0-6bf50c74c0a0"
    }
}

示例4 发起单流纯音频旁路转推 CDN

无

输入示例

POST / HTTP/1.1
Host: trtc.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartPublishCdnStream
<公共请求参数>

{
    "AgentParams": {
        "MaxIdleTime": 30,
        "UserSig": "eJw1zV8LgjAUBfCvInsO2dStGfQSQUb2pFJvsnLJJZW1LekPffdc6X08v8O5b5Snmd9LjRYeCnyMZt4vgUp2Fi7wB6vtuVRC207q0kpjSzIVTXUVSkE11EiEMeE8ZGw0*VCg5SCcDeRuBAutiwkLeRRwOo*nMajduy5O*gIaus9qel9vX*lJbHJmyDMxuKFFI27tsT*I1S6pl*jzBb*IOTE_",
        "UserId": "trtc_partner_test_1"
    },
    "AudioParams": {
        "AudioEncode": {
            "SampleRate": 48000,
            "Codec": 0,
            "BitRate": 64,
            "Channel": 2
        }
    },
    "SingleSubscribeParams": {
        "UserMediaStream": {
            "StreamType": 0,
            "UserInfo": {
                "RoomIdType": 0,
                "RoomId": "295066",
                "UserId": "Trtc_User_0"
            }
        }
    },
    "PublishCdnParams": [
        {
            "PublishCdnUrl": "rtmp://3891.livepush.myqcloud.com/live/trtc_publishcdn_test1",
            "IsTencentCdn": 1
        }
    ],
    "RoomIdType": 0,
    "SdkAppId": 1400188366,
    "WithTranscoding": 0,
    "RoomId": "295066"
}

输出示例

{
    "Response": {
        "TaskId": "-m97l2ZU7r57nZBesMa84KgzxhH0OBbbCRaKC4K-4pycoZW7yFPtusNuZOen1Ca0qtQQAQ..",
        "RequestId": "ef089f8b-d0d1-4131-894d-4edd68d61605"
    }
}

示例5 发起音视频混流回推 TRTC 房间

输入示例

POST / HTTP/1.1
Host: trtc.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartPublishCdnStream
<公共请求参数>

{
    "AgentParams": {
        "MaxIdleTime": 30,
        "UserSig": "eJw1zV8LgjAUBfCvInsO2dStGfQSQUb2pFJvsnLJJZW1LekPffdc6X08v8O5b5Snmd9LjRYeCnyMZt4vgUp2Fi7wB6vtuVRC207q0kpjSzIVTXUVSkE11EiEMeE8ZGw0*VCg5SCcDeRuBAutiwkLeRRwOo*nMajduy5O*gIaus9qel9vX*lJbHJmyDMxuKFFI27tsT*I1S6pl*jzBb*IOTE_",
        "UserId": "trtc_partner_test_1"
    },
    "AudioParams": {
        "AudioEncode": {
            "SampleRate": 48000,
            "Codec": 0,
            "BitRate": 64,
            "Channel": 2
        }
    },
    "VideoParams": {
        "VideoEncode": {
            "Height": 720,
            "Width": 1280,
            "Fps": 15,
            "BitRate": 1536,
            "Gop": 2
        },
        "LayoutParams": {
            "PureAudioHoldPlaceMode": 0,
            "MixLayoutMode": 4,
            "MixLayoutList": [
                {
                    "LocationX": 0,
                    "LocationY": 0,
                    "UserMediaStream": {
                        "StreamType": 0,
                        "UserInfo": {
                            "RoomIdType": 0,
                            "RoomId": "295066",
                            "UserId": "Trtc_User_0"
                        }
                    },
                    "ZOrder": 0,
                    "ImageHeight": 720,
                    "ImageWidth": 640,
                    "RenderMode": 0
                },
                {
                    "LocationX": 640,
                    "LocationY": 0,
                    "UserMediaStream": {
                        "StreamType": 0,
                        "UserInfo": {
                            "RoomIdType": 0,
                            "RoomId": "295066",
                            "UserId": "Trtc_User_1"
                        }
                    },
                    "ZOrder": 0,
                    "ImageHeight": 720,
                    "ImageWidth": 640,
                    "RenderMode": 0
                }
            ]
        },
        "BackGroundColor": "0xFF0000",
        "WaterMarkList": [
            {
                "WaterMarkType": 0,
                "WaterMarkImage": {
                    "LocationX": 64,
                    "LocationY": 64,
                    "WaterMarkHeight": 64,
                    "WaterMarkWidth": 64,
                    "WaterMarkUrl": "https://xkt-course-1304449343.cos.ap-beijing.myqcloud.com/test/mark/37f9eb62-ca72-430e-bfca-e700b59b20e0.png",
                    "ZOrder": 3
                }
            }
        ]
    },
    "FeedBackRoomParams": [
        {
            "RoomId": "630777",
            "RoomIdType": 0,
            "UserId": "trtc_partner_test_2",
            "UserSig": "eJwtjEELgjAYhv-Ldy10m7mtQYcQOtklU6mLSFs1LVnzq4Tovwfa8Xmel-cD*zQLXsaDAhYQmI9stenQnu2o0eOpcrXHzvgKTY8V*8963dbOWQ2KLgihUkacTwXt3YCigpIlo0KyyZrBWW9ARZyQ-4O9gIJrYfK365M85PEw02HZPneNaJJbg4-1Nj6KQqZZacVhI1fw-QEkCzYe"
        }
    ],
    "RoomIdType": 0,
    "SdkAppId": 1400188366,
    "WithTranscoding": 1,
    "RoomId": "295066"
}

输出示例

{
    "Response": {
        "RequestId": "921e9cf6-b77c-4a7a-ab0e-c66a3e66fc59",
        "TaskId": "-m9lnV5U7n7TwoLKSsii1JivUn7DLDDbP16uLYK-4pycoZWQndib8GQJZEMMXFyOHe9Ds6WfxAE."
    }
}

示例6 发起音视频混流转推 CDN ，输出数据带布局 SEI

无

输入示例

POST / HTTP/1.1
Host: trtc.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartPublishCdnStream
<公共请求参数>

{
    "AgentParams": {
        "MaxIdleTime": 30,
        "UserSig": "eJw1zV8LgjAUBfCvInsO2dStGfQSQUb2pFJvsnLJJZW1LekPffdc6X08v8O5b5Snmd9LjRYeCnyMZt4vgUp2Fi7wB6vtuVRC207q0kpjSzIVTXUVSkE11EiEMeE8ZGw0*VCg5SCcDeRuBAutiwkLeRRwOo*nMajduy5O*gIaus9qel9vX*lJbHJmyDMxuKFFI27tsT*I1S6pl*jzBb*IOTE_",
        "UserId": "trtc_partner_test_1"
    },
    "AudioParams": {
        "AudioEncode": {
            "SampleRate": 48000,
            "Codec": 0,
            "BitRate": 64,
            "Channel": 2
        }
    },
    "VideoParams": {
        "VideoEncode": {
            "Height": 720,
            "Width": 1280,
            "Fps": 15,
            "BitRate": 1536,
            "Gop": 2
        },
        "LayoutParams": {
            "PureAudioHoldPlaceMode": 0,
            "MixLayoutMode": 4,
            "MixLayoutList": [
                {
                    "LocationX": 0,
                    "LocationY": 0,
                    "UserMediaStream": {
                        "StreamType": 0,
                        "UserInfo": {
                            "RoomIdType": 0,
                            "RoomId": "295066",
                            "UserId": "Trtc_User_0"
                        }
                    },
                    "ZOrder": 0,
                    "ImageHeight": 720,
                    "ImageWidth": 640,
                    "RenderMode": 0
                },
                {
                    "LocationX": 640,
                    "LocationY": 0,
                    "UserMediaStream": {
                        "StreamType": 0,
                        "UserInfo": {
                            "RoomIdType": 0,
                            "RoomId": "295066",
                            "UserId": "Trtc_User_1"
                        }
                    },
                    "ZOrder": 0,
                    "ImageHeight": 720,
                    "ImageWidth": 640,
                    "RenderMode": 0
                }
            ]
        },
        "BackGroundColor": "0xFF0000",
        "WaterMarkList": [
            {
                "WaterMarkType": 0,
                "WaterMarkImage": {
                    "LocationX": 64,
                    "LocationY": 64,
                    "WaterMarkHeight": 64,
                    "WaterMarkWidth": 64,
                    "WaterMarkUrl": "https://xkt-course-1304449343.cos.ap-beijing.myqcloud.com/test/mark/37f9eb62-ca72-430e-bfca-e700b59b20e0.png",
                    "ZOrder": 3
                }
            }
        ]
    },
    "SeiParams": {
        "LayoutVolume": {
            "AppData": "layout_sei_test",
            "PayloadType": 100,
            "Interval": 1000,
            "FollowIdr": 1
        }
    },
    "PublishCdnParams": [
        {
            "PublishCdnUrl": "rtmp://3891.livepush.myqcloud.com/live/trtc_publishcdn_test1",
            "IsTencentCdn": 1
        }
    ],
    "RoomIdType": 0,
    "SdkAppId": 1400188366,
    "WithTranscoding": 1,
    "RoomId": "295066"
}

输出示例

{
    "Response": {
        "RequestId": "6dfc18cc-2123-4a11-9591-f1e873fbbd65",
        "TaskId": "-m9lnV5U7nzo2Xwh48Dc-YCDrR5Bk8DbJ1WrLYK-4pycoZWQndibrNig9cq-7ljX4SenbKWlZAE."
    }
}

5. 开发者资源

腾讯云 API 平台

腾讯云 API 平台是综合 API 文档、错误码、API Explorer 及 SDK 等资源的统一查询平台，方便您从同一入口查询及使用腾讯云提供的所有 API 服务。

API Inspector

用户可通过 API Inspector 查看控制台每一步操作关联的 API 调用情况，并自动生成各语言版本的 API 代码，也可前往 API Explorer 进行在线调试。

SDK

云 API 3.0 提供了配套的开发工具集（SDK），支持多种编程语言，能更方便的调用 API。

Tencent Cloud SDK 3.0 for Python: GitHub Gitee
Tencent Cloud SDK 3.0 for Java: GitHub Gitee
Tencent Cloud SDK 3.0 for PHP: GitHub Gitee
Tencent Cloud SDK 3.0 for Go: GitHub Gitee
Tencent Cloud SDK 3.0 for Node.js: GitHub Gitee
Tencent Cloud SDK 3.0 for .NET: GitHub Gitee
Tencent Cloud SDK 3.0 for C++: GitHub Gitee
Tencent Cloud SDK 3.0 for Ruby: GitHub Gitee

命令行工具

Tencent Cloud CLI 3.0

6. 错误码

以下仅列出了接口业务逻辑相关的错误码，其他错误码详见公共错误码。

错误码	描述
AuthFailure	CAM签名/鉴权错误。
AuthFailure.UnRealNameAuthenticated	未完成实名认证，不允许此操作。
AuthFailure.UnauthorizedOperation	CAM鉴权失败。
AuthFailure.UnsupportedOperation	不支持该操作。
FailedOperation	操作失败。
FailedOperation.RestrictedConcurrency	单用户并发过载，请联系我们增大并发路数到合理值。
InternalError	内部错误。
InvalidParameter	参数错误。
InvalidParameter.SdkAppId	SdkAppId参数错误。
MissingParameter	缺少参数错误。
ResourceNotFound	资源不存在。
UnsupportedOperation	操作不支持。

启动转推任务

本页目录：

1. 接口描述

2. 输入参数

3. 输出参数

4. 示例

示例1 发起音视频混流转推 CDN

输入示例

输出示例

示例2 发起纯音频混流转推 CDN

输入示例

输出示例

示例3 发起单流音视频旁路转推 CDN

输入示例

输出示例

示例4 发起单流纯音频旁路转推 CDN

输入示例

输出示例

示例5 发起音视频混流回推 TRTC 房间

输入示例

输出示例

示例6 发起音视频混流转推 CDN ，输出数据带布局 SEI

输入示例

输出示例

5. 开发者资源

腾讯云 API 平台

API Inspector

SDK

命令行工具

6. 错误码