Identificar participantes de exibição de galeria grande em uma lista
A API de comunicações de nuvem no Microsoft Graph fornece um ponto de extremidade para adicionar a exibição de galeria grande a uma chamada. Depois que a exibição de galeria grande for adicionada com êxito a uma chamada, você poderá assinar o feed de vídeo de um participante.
Este artigo descreve como identificar um grande participante de exibição de galeria em uma lista para que você possa recuperar os dados relevantes para assinar o feed de vídeo.
Exemplo de lista com participante de exibição de galeria grande
O exemplo a seguir mostra uma lista que o aplicativo recebe após a grande exibição da galeria ser adicionada com êxito a uma chamada.
{
"@odata.type": "#microsoft.graph.commsNotifications",
"value": [
{
"@odata.type": "#microsoft.graph.commsNotification",
"changeType": "updated",
"resource": "/app/calls/5f201300-df95-4800-bd3a-75b0af63dd2b/participants",
"resourceUrl": "/communications/calls/5f201300-df95-4800-bd3a-75b0af63dd2b/participants",
"resourceData": [
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"application": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"displayName": "(redacted)",
"identityProvider": "AAD",
}
},
"endpointType": "default",
"endpointId": "40213cfb-0934-4dce-9b3a-57c09adf6967",
"participantId": "23aeb644-6227-4f4a-b5c9-4d61c1f196d3",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "2472",
"direction": "sendReceive",
"serverMuted": false
}
],
"isMuted": false,
"isInLobby": false,
"meetingRole": "presenter",
"id": "23aeb644-6227-4f4a-b5c9-4d61c1f196d3"
},
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"user": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"displayName": "(redacted)",
"identityProvider": "AAD"
}
},
"endpointType": "default",
"endpointId": "4a767d9b-dca5-4176-8f1b-2a0f98923569",
"participantId": "63ce9188-e754-4733-9e71-ccc829499a63",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "1652",
"direction": "sendReceive",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "video",
"label": "main-video",
"sourceId": "1653",
"direction": "sendReceive",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "videoBasedScreenSharing",
"label": "applicationsharing-video",
"sourceId": "1655",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "data",
"label": "data",
"sourceId": "1656",
"direction": "sendReceive",
"serverMuted": false
}
],
"isMuted": false,
"isInLobby": false,
"meetingRole": "presenter",
"id": "63ce9188-e754-4733-9e71-ccc829499a63"
},
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"application": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"identityProvider": "AAD",
"ApplicationType": "LargeGallery-V2"
}
},
"endpointType": "default",
"endpointId": "ccf24195-bd6d-4cbe-bc46-180a7fd3e9ba",
"participantId": "a34eae65-7aca-43ab-8332-80ab28629a54",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "2886",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "video",
"label": "main-video",
"sourceId": "2887",
"direction": "sendReceive",
"serverMuted": false
}
],
"metadata": "{\"__platform\":{\"ui\":{\"hidden\":true}},\"audienceView\":{\"id\":\"3c28fd97-6d51-4f2f-8bba-82dcbf408ff6/1\",\"page\":1,\"status\":\"active\",\"type\":\"lg\",\"aspectRatio\":\"widescreen\"}}",
"isMuted": false,
"isInLobby": false,
"meetingRole": "presenter",
"id": "a34eae65-7aca-43ab-8332-80ab28629a54"
},
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"application": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"identityProvider": "AAD",
"ApplicationType": "LargeGallery-V2"
}
},
"endpointType": "default",
"endpointId": "22726e72-fbf4-46c7-a5d7-36c682c3ba86",
"participantId": "8c4ca6bc-33e1-4da5-b6d6-a2fe61af605d",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "2673",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "video",
"label": "main-video",
"sourceId": "2674",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "data",
"label": "data",
"sourceId": "2685",
"direction": "sendReceive",
"serverMuted": false
}
],
"metadata": "{\"__platform\":{\"ui\":{\"hidden\":true}}}",
"isMuted": false,
"isInLobby": false,
"meetingRole": "presenter",
"id": "8c4ca6bc-33e1-4da5-b6d6-a2fe61af605d"
},
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"user": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"displayName": "(redacted)",
"identityProvider": "AAD"
}
},
"endpointType": "default",
"endpointId": "c2bba3c4-ffff-ffff-eca6-782d381190f4",
"participantId": "3855ce6a-064e-402c-a1cf-2d78b4e1efbb",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "201",
"direction": "sendReceive",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "video",
"label": "main-video",
"sourceId": "202",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "videoBasedScreenSharing",
"label": "applicationsharing-video",
"sourceId": "212",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "data",
"label": "data",
"sourceId": "213",
"direction": "sendReceive",
"serverMuted": false
}
],
"metadata": "{\"holographicCapabilities\":3}",
"isMuted": true,
"isInLobby": false,
"meetingRole": "organizer",
"id": "3855ce6a-064e-402c-a1cf-2d78b4e1efbb"
},
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"user": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"displayName": "(redacted)",
"identityProvider": "AAD"
}
},
"endpointType": "default",
"endpointId": "b8e00934-5ae7-4e8b-9933-1ed41d70e8c0",
"participantId": "f65b97d2-efda-471e-a2c5-bfe40146b11f",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "2267",
"direction": "sendReceive",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "video",
"label": "main-video",
"sourceId": "2268",
"direction": "sendReceive",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "videoBasedScreenSharing",
"label": "applicationsharing-video",
"sourceId": "2270",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "data",
"label": "data",
"sourceId": "2271",
"direction": "sendReceive",
"serverMuted": false
}
],
"isMuted": false,
"isInLobby": false,
"publishedStates": [],
"meetingRole": "presenter",
"id": "f65b97d2-efda-471e-a2c5-bfe40146b11f"
}
]
}
]
}
Identificar participantes do modo de exibição de galeria grande
Use os seguintes dados do exemplo de lista para identificar um grande participante da exibição da galeria:
- O ApplicationType do participante será definido como
LargeGallery-V2. - A direção do fluxo de mídia de vídeo será definida como
sendReceive. - Os metadados serão incluídos que conterão mais detalhes, como paginação.
Exemplo de dados do participante
O exemplo a seguir mostra os dados de um grande participante da exibição de galeria na lista.
{
"@odata.type": "#microsoft.graph.participant",
"info": {
"@odata.type": "#microsoft.graph.participantInfo",
"identity": {
"@odata.type": "#microsoft.graph.identitySet",
"application": {
"@odata.type": "#microsoft.graph.identity",
"id": "(redacted)",
"identityProvider": "AAD",
"ApplicationType": "LargeGallery-V2"
}
},
"endpointType": "default",
"endpointId": "ccf24195-bd6d-4cbe-bc46-180a7fd3e9ba",
"participantId": "a34eae65-7aca-43ab-8332-80ab28629a54",
},
"mediaStreams": [
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "audio",
"label": "main-audio",
"sourceId": "2886",
"direction": "receiveOnly",
"serverMuted": false
},
{
"@odata.type": "#microsoft.graph.mediaStream",
"mediaType": "video",
"label": "main-video",
"sourceId": "2887",
"direction": "sendReceive",
"serverMuted": false
}
],
"metadata": "{\"__platform\":{\"ui\":{\"hidden\":true}},\"audienceView\":{\"id\":\"3c28fd97-6d51-4f2f-8bba-82dcbf408ff6/1\",\"page\":1,\"status\":\"active\",\"type\":\"lg\",\"aspectRatio\":\"widescreen\"}}",
"isMuted": false,
"isInLobby": false,
"meetingRole": "presenter",
"id": "a34eae65-7aca-43ab-8332-80ab28629a54"
}
Definição para desserializar metadados
Use a definição a seguir para desserializar a propriedade de metadados e extrair as informações relevantes.
/// <summary>
/// Metadata for large gallery view
/// </summary>
[DataContract]
public class AudienceView
{
/// <summary>
/// Unique view id
/// </summary>
[DataMember(Name = "id")]
public string Id { get; set; }
/// <summary>
/// Page Number
/// </summary>
[DataMember(Name = "page")]
public int Page { get; set; }
/// <summary>
/// Signal that page is Active/Inactive
/// </summary>
[DataMember(Name = "status")]
public string Status { get; set; }
}