Start screen sharing in a non-RTMP video chat/livestream or conference. Presentations are not supported in live stories or RTMP-mode video chats/livestreams, see here » for more info.
updatesTooLong#e317af7e = Updates;
updateShortMessage#313bc7f8 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true id:int user_id:long message:string pts:int pts_count:int date:int fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
updateShortChatMessage#4d6deea5 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true id:int from_id:long chat_id:long message:string pts:int pts_count:int date:int fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
updateShort#78d4dec1 update:Update date:int = Updates;
updatesCombined#725b04c3 updates:Vector<Update> users:Vector<User> chats:Vector<Chat> date:int seq_start:int seq:int = Updates;
updates#74ae4240 updates:Vector<Update> users:Vector<User> chats:Vector<Chat> date:int seq:int = Updates;
updateShortSentMessage#9015e101 flags:# out:flags.1?true id:int pts:int pts_count:int date:int media:flags.9?MessageMedia entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
---functions---
phone.joinGroupCallPresentation#cbea6bc4 call:InputGroupCall params:DataJSON = Updates;| Name | Type | Description |
|---|---|---|
| call | InputGroupCall | Joined non-RTMP video chat/livestream or conference in which to start presenting |
| params | DataJSON | Join payload generated by a separate local call-engine instance for the presentation |
| Code | Type | Description |
|---|---|---|
| 400 | GROUPCALL_INVALID | The specified group call is invalid. |
| 403 | PARTICIPANT_JOIN_MISSING | Trying to enable a presentation, when the user hasn't joined the Video Chat with phone.joinGroupCall. |
How to start, join and manage group calls and video chats.
Join any group call type ». Conference calls additionally require the E2E joining flow ».
The params field must contain a join payload generated by the local tgcalls group-call engine. It contains a random non-zero audio ssrc, ICE ufrag and pwd, DTLS fingerprints, and, when publishing video, ssrc-groups.
For example, a join payload without published video has the following shape:
{
"ssrc": 123456789,
"ufrag": "...",
"pwd": "...",
"fingerprints": [{
"hash": "sha-256",
"fingerprint": "...",
"setup": "passive"
}]
}
When joining an RTMP-mode call, generate the payload without published video source groups.