Identificación de los participantes de una vista de galería grande en una lista
La API de comunicaciones en la nube de Microsoft Graph proporciona un punto de conexión para agregar la vista de galería grande a una llamada. Una vez que la vista de galería grande se agrega correctamente a una llamada, puede suscribirse a la fuente de vídeo de un participante.
En este artículo se describe cómo identificar a un participante de vista de galería grande en una lista para que pueda recuperar los datos pertinentes para suscribirse a la fuente de vídeo.
Ejemplo de lista con un participante de vista de galería grande
En el ejemplo siguiente se muestra una lista que la aplicación recibe después de que la vista de galería grande se haya agregado correctamente a una llamada.
{
"@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"
}
]
}
]
}
Identificación de los participantes de la vista de galería de gran tamaño
Use los siguientes datos del ejemplo de lista para identificar a un participante de vista de galería grande:
-
ApplicationType del participante se establecerá como
LargeGallery-V2. - La dirección del flujo multimedia de vídeo se establecerá en
sendReceive. - Se incluirán los metadatos que contendrán más detalles, como la paginación.
Ejemplo de datos de participantes
En el ejemplo siguiente se muestran los datos de un participante de vista de galería grande en la 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"
}
Definición para deserializar metadatos
Use la siguiente definición para deserializar la propiedad de metadatos y extraer la información pertinente.
/// <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; }
}