New API/tgcalls with two outgoing videos.

Telegram/SourceFiles/calls/group/calls_group_call.h

@@ -75,18 +75,33 @@ struct LevelUpdate {
 };
 
 struct StreamsVideoUpdate {
-	uint32 ssrc = 0;
+	std::string endpoint;
 	bool streams = false;
 };
 
-struct VideoParams;
+struct VideoParams {
+	base::flat_set<uint32> ssrcs;
+	std::string endpoint;
+	QByteArray json;
+	uint32 hash = 0;
 
-[[nodiscard]] std::shared_ptr<VideoParams> ParseVideoParams(
-	const QByteArray &video,
-	const QByteArray &screencast,
-	const std::shared_ptr<VideoParams> &existing);
-[[nodiscard]] const base::flat_set<uint32> &VideoSourcesFromParams(
-	const std::shared_ptr<VideoParams> &params);
+	[[nodiscard]] bool empty() const {
+		return endpoint.empty() || ssrcs.empty() || json.isEmpty();
+	}
+	[[nodiscard]] explicit operator bool() const {
+		return !empty();
+	}
+};
+
+struct ParticipantVideoParams {
+	VideoParams camera;
+	VideoParams screen;
+};
+
+[[nodiscard]] std::shared_ptr<ParticipantVideoParams> ParseVideoParams(
+	const QByteArray &camera,
+	const QByteArray &screen,
+	const std::shared_ptr<ParticipantVideoParams> &existing);
 
 class GroupCall final : public base::has_weak_ptr {
 public:
@@ -154,8 +169,11 @@ public:
 	void startScheduledNow();
 	void toggleScheduleStartSubscribed(bool subscribed);
 
-	void addVideoOutput(uint32 ssrc, not_null<Webrtc::VideoTrack*> track);
-	[[nodiscard]] not_null<Webrtc::VideoTrack*> outgoingVideoTrack() const;
+	void addVideoOutput(
+		const std::string &endpoint,
+		not_null<Webrtc::VideoTrack*> track);
+	[[nodiscard]] not_null<Webrtc::VideoTrack*> outgoingCameraTrack() const;
+	[[nodiscard]] not_null<Webrtc::VideoTrack*> outgoingScreenTrack() const;
 
 	void setMuted(MuteState mute);
 	void setMutedAndUpdate(MuteState mute);
@@ -213,20 +231,21 @@ public:
 	-> rpl::producer<StreamsVideoUpdate> {
 		return _streamsVideoUpdated.events();
 	}
-	[[nodiscard]] bool streamsVideo(uint32 ssrc) const {
-		return ssrc
-			&& _videoStreamSsrcs.contains(ssrc)
-			&& !_videoMuted.contains(ssrc);
+	[[nodiscard]] bool streamsVideo(const std::string &endpoint) const {
+		return !endpoint.empty()
+			&& _incomingVideoEndpoints.contains(endpoint)
+			&& _activeVideoEndpoints.contains(endpoint);
 	}
-	[[nodiscard]] uint32 videoStreamPinned() const {
-		return _videoStreamPinned;
+	[[nodiscard]] const std::string &videoEndpointPinned() const {
+		return _videoEndpointPinned;
 	}
-	void pinVideoStream(uint32 ssrc);
-	[[nodiscard]] uint32 videoStreamLarge() const {
-		return _videoStreamLarge.current();
+	void pinVideoEndpoint(const std::string &endpoint);
+	[[nodiscard]] std::string videoEndpointLarge() const {
+		return _videoEndpointLarge.current();
 	}
-	[[nodiscard]] rpl::producer<uint32> videoStreamLargeValue() const {
-		return _videoStreamLarge.value();
+	[[nodiscard]] auto videoEndpointLargeValue() const
+	-> rpl::producer<std::string> {
+		return _videoEndpointLarge.value();
 	}
 	[[nodiscard]] Webrtc::VideoTrack *videoLargeTrack() const {
 		return _videoLargeTrack.current();
@@ -251,7 +270,7 @@ public:
 	[[nodiscard]] bool isScreenSharing() const;
 	[[nodiscard]] QString screenSharingDeviceId() const;
 	void toggleVideo(bool active);
-	void switchToScreenSharing(const QString &uniqueId);
+	void toggleScreenSharing(std::optional<QString> uniqueId);
 
 	void toggleMute(const Group::MuteRequest &data);
 	void changeVolume(const Group::VolumeRequest &data);
@@ -269,10 +288,15 @@ public:
 
 private:
 	class LoadPartTask;
+	class MediaChannelDescriptionsTask;
 
 public:
 	void broadcastPartStart(std::shared_ptr<LoadPartTask> task);
 	void broadcastPartCancel(not_null<LoadPartTask*> task);
+	void mediaChannelDescriptionsStart(
+		std::shared_ptr<MediaChannelDescriptionsTask> task);
+	void mediaChannelDescriptionsCancel(
+		not_null<MediaChannelDescriptionsTask*> task);
 
 private:
 	using GlobalShortcutValue = base::GlobalShortcutValue;
@@ -299,12 +323,19 @@ private:
 		VideoMuted,
 	};
 
+	[[nodiscard]] bool mediaChannelDescriptionsFill(
+		not_null<MediaChannelDescriptionsTask*> task,
+		Fn<bool(uint32)> resolved = nullptr);
+	void checkMediaChannelDescriptions(Fn<bool(uint32)> resolved = nullptr);
+
 	void handlePossibleCreateOrJoinResponse(const MTPDgroupCall &data);
 	void handlePossibleDiscarded(const MTPDgroupCallDiscarded &data);
 	void handleUpdate(const MTPDupdateGroupCall &data);
 	void handleUpdate(const MTPDupdateGroupCallParticipants &data);
 	void ensureControllerCreated();
 	void destroyController();
+	void ensureScreencastCreated();
+	void destroyScreencast();
 
 	void setState(State state);
 	void finish(FinishType type);
@@ -319,10 +350,15 @@ private:
 	void saveDefaultJoinAs(not_null<PeerData*> as);
 	void subscribeToReal(not_null<Data::GroupCall*> real);
 	void setScheduledDate(TimeId date);
+	void joinLeavePresentation();
+	void rejoinPresentation();
+	void leavePresentation();
 
 	void audioLevelsUpdated(const tgcalls::GroupLevelsUpdate &data);
 	void setInstanceConnected(tgcalls::GroupNetworkState networkState);
 	void setInstanceMode(InstanceMode mode);
+	void setScreenInstanceConnected(tgcalls::GroupNetworkState networkState);
+	void setScreenInstanceMode(InstanceMode mode);
 	void checkLastSpoke();
 	void pushToTalkCancel();
 
@@ -335,14 +371,8 @@ private:
 	void stopConnectingSound();
 	void playConnectingSoundOnce();
 
-	void requestParticipantsInformation(const std::vector<uint32_t> &ssrcs);
-	void addParticipantsToInstance();
-	void prepareParticipantForAdding(
-		const Data::GroupCallParticipant &participant);
-	void addPreparedParticipants();
-	void addPreparedParticipantsDelayed();
-	void setVideoStreams(const std::vector<std::uint32_t> &ssrcs);
-	[[nodiscard]] uint32 chooseLargeVideoSsrc() const;
+	void setIncomingVideoStreams(const std::vector<std::string> &endpoints);
+	[[nodiscard]] std::string chooseLargeVideoEndpoint() const;
 
 	void editParticipant(
 		not_null<PeerData*> participantPeer,
@@ -368,17 +398,15 @@ private:
 	MTP::Sender _api;
 	rpl::event_stream<not_null<Data::GroupCall*>> _realChanges;
 	rpl::variable<State> _state = State::Creating;
-	rpl::variable<InstanceState> _instanceState
-		= InstanceState::Disconnected;
-	bool _instanceTransitioning = false;
-	InstanceMode _instanceMode = InstanceMode::None;
 	base::flat_set<uint32> _unresolvedSsrcs;
-	std::vector<tgcalls::GroupParticipantDescription> _preparedParticipants;
-	bool _addPreparedParticipantsScheduled = false;
 	bool _recordingStoppedByMe = false;
 
 	MTP::DcId _broadcastDcId = 0;
 	base::flat_map<not_null<LoadPartTask*>, LoadingPart> _broadcastParts;
+	base::flat_set<
+		std::shared_ptr<
+			MediaChannelDescriptionsTask>,
+		base::pointer_comparator<MediaChannelDescriptionsTask>> _mediaChannelDescriptionses;
 
 	not_null<PeerData*> _joinAs;
 	std::vector<not_null<PeerData*>> _possibleJoinAs;
@@ -395,21 +423,35 @@ private:
 	uint64 _id = 0;
 	uint64 _accessHash = 0;
 	uint32 _mySsrc = 0;
-	uint32 _screencastSsrc = 0;
+	uint32 _screenSsrc = 0;
 	TimeId _scheduleDate = 0;
 	base::flat_set<uint32> _mySsrcs;
 	mtpRequestId _createRequestId = 0;
 	mtpRequestId _updateMuteRequestId = 0;
 
+	rpl::variable<InstanceState> _instanceState
+		= InstanceState::Disconnected;
+	bool _instanceTransitioning = false;
+	InstanceMode _instanceMode = InstanceMode::None;
 	std::unique_ptr<tgcalls::GroupInstanceCustomImpl> _instance;
-	std::shared_ptr<tgcalls::VideoCaptureInterface> _videoCapture;
-	const std::unique_ptr<Webrtc::VideoTrack> _videoOutgoing;
+	std::shared_ptr<tgcalls::VideoCaptureInterface> _cameraCapture;
+	const std::unique_ptr<Webrtc::VideoTrack> _cameraOutgoing;
+
+	rpl::variable<InstanceState> _screenInstanceState
+		= InstanceState::Disconnected;
+	InstanceMode _screenInstanceMode = InstanceMode::None;
+	std::unique_ptr<tgcalls::GroupInstanceCustomImpl> _screenInstance;
+	std::shared_ptr<tgcalls::VideoCaptureInterface> _screenCapture;
+	const std::unique_ptr<Webrtc::VideoTrack> _screenOutgoing;
+	QString _screenDeviceId;
+	std::string _screenEndpoint;
+
 	rpl::event_stream<LevelUpdate> _levelUpdates;
 	rpl::event_stream<StreamsVideoUpdate> _streamsVideoUpdated;
-	base::flat_set<uint32> _videoStreamSsrcs;
-	base::flat_set<uint32> _videoMuted;
-	rpl::variable<uint32> _videoStreamLarge = 0;
-	uint32 _videoStreamPinned = 0;
+	base::flat_set<std::string> _incomingVideoEndpoints;
+	base::flat_set<std::string> _activeVideoEndpoints;
+	rpl::variable<std::string> _videoEndpointLarge;
+	std::string _videoEndpointPinned;
 	std::unique_ptr<LargeTrack> _videoLargeTrackWrap;
 	rpl::variable<Webrtc::VideoTrack*> _videoLargeTrack;
 	base::flat_map<uint32, Data::LastSpokeTimes> _lastSpoke;
@@ -430,8 +472,7 @@ private:
 	std::unique_ptr<Webrtc::MediaDevices> _mediaDevices;
 	QString _audioInputId;
 	QString _audioOutputId;
-	QString _videoInputId;
-	QString _videoDeviceId;
+	QString _cameraInputId;
 
 	rpl::lifetime _lifetime;
 

Telegram/SourceFiles/calls/group/calls_group_members.cpp

@@ -145,8 +145,10 @@ public:
 		return _raisedHandRating;
 	}
 
-	[[nodiscard]] not_null<Webrtc::VideoTrack*> createVideoTrack();
+	[[nodiscard]] not_null<Webrtc::VideoTrack*> createVideoTrack(
+		const std::string &endpoint);
 	void clearVideoTrack();
+	[[nodiscard]] const std::string &videoTrackEndpoint() const;
 	void setVideoTrack(not_null<Webrtc::VideoTrack*> track);
 
 	void addActionRipple(QPoint point, Fn<void()> updateCallback) override;
@@ -276,6 +278,7 @@ private:
 	std::unique_ptr<StatusIcon> _statusIcon;
 	std::unique_ptr<Webrtc::VideoTrack> _videoTrack;
 	Webrtc::VideoTrack *_videoTrackShown = nullptr;
+	std::string _videoTrackEndpoint;
 	rpl::lifetime _videoTrackLifetime; // #TODO calls move to unique_ptr.
 	Ui::Animations::Simple _speakingAnimation; // For gray-red/green icon.
 	Ui::Animations::Simple _mutedAnimation; // For gray/red icon.
@@ -380,14 +383,16 @@ private:
 		not_null<Row*> row,
 		uint64 raiseHandRating) const;
 	Row *findRow(not_null<PeerData*> participantPeer) const;
-	Row *findRow(uint32 audioSsrc) const;
+	const Data::GroupCallParticipant *findParticipant(
+		const std::string &endpoint) const;
+	Row *findRow(const std::string &endpoint) const;
 
 	void appendInvitedUsers();
 	void scheduleRaisedHandStatusRemove();
 
 	const not_null<GroupCall*> _call;
 	not_null<PeerData*> _peer;
-	uint32 _largeSsrc = 0;
+	std::string _largeEndpoint;
 	bool _prepared = false;
 
 	rpl::event_stream<MuteRequest> _toggleMuteRequests;
@@ -1015,14 +1020,20 @@ void Row::refreshStatus() {
 		_speaking);
 }
 
-not_null<Webrtc::VideoTrack*> Row::createVideoTrack() {
+not_null<Webrtc::VideoTrack*> Row::createVideoTrack(
+		const std::string &endpoint) {
 	_videoTrackShown = nullptr;
+	_videoTrackEndpoint = endpoint;
 	_videoTrack = std::make_unique<Webrtc::VideoTrack>(
 		Webrtc::VideoState::Active);
 	setVideoTrack(_videoTrack.get());
 	return _videoTrack.get();
 }
 
+const std::string &Row::videoTrackEndpoint() const {
+	return _videoTrackEndpoint;
+}
+
 void Row::clearVideoTrack() {
 	_videoTrackLifetime.destroy();
 	_videoTrackShown = nullptr;
@@ -1149,27 +1160,48 @@ void MembersController::setupListChangeViewers() {
 		}
 	}, _lifetime);
 
-	_call->videoStreamLargeValue(
-	) | rpl::filter([=](uint32 largeSsrc) {
-		return (_largeSsrc != largeSsrc);
-	}) | rpl::start_with_next([=](uint32 largeSsrc) {
-		if (const auto row = findRow(_largeSsrc)) {
-			_call->addVideoOutput(_largeSsrc, row->createVideoTrack());
+	_call->videoEndpointLargeValue(
+	) | rpl::filter([=](const std::string &largeEndpoint) {
+		return (_largeEndpoint != largeEndpoint);
+	}) | rpl::start_with_next([=](const std::string &largeEndpoint) {
+		if (const auto participant = findParticipant(_largeEndpoint)) {
+			if (participant->cameraEndpoint() == _largeEndpoint) {
+				if (const auto row = findRow(participant->peer)) {
+					_call->addVideoOutput(
+						_largeEndpoint,
+						row->createVideoTrack(_largeEndpoint));
+				}
+			}
 		}
-		_largeSsrc = largeSsrc;
-		if (const auto row = findRow(_largeSsrc)) {
-			row->clearVideoTrack();
+		_largeEndpoint = largeEndpoint;
+		if (const auto participant = findParticipant(_largeEndpoint)) {
+			if (participant->cameraEndpoint() == _largeEndpoint) {
+				if (const auto row = findRow(participant->peer)) {
+					row->clearVideoTrack();
+				}
+			}
 		}
 	}, _lifetime);
 
 	_call->streamsVideoUpdates(
 	) | rpl::start_with_next([=](StreamsVideoUpdate update) {
-		Assert(update.ssrc != _largeSsrc);
-		if (const auto row = findRow(update.ssrc)) {
+		Assert(update.endpoint != _largeEndpoint);
+		if (const auto participant = findParticipant(update.endpoint)) {
 			if (update.streams) {
-				_call->addVideoOutput(update.ssrc, row->createVideoTrack());
+				if (participant->cameraEndpoint() == update.endpoint
+					|| !_call->streamsVideo(participant->cameraEndpoint())) {
+					if (const auto row = findRow(participant->peer)) {
+						_call->addVideoOutput(
+							update.endpoint,
+							row->createVideoTrack(update.endpoint));
+					}
+				}
 			} else {
-				row->clearVideoTrack();
+				if (const auto row = findRow(participant->peer)) {
+					if (row->videoTrackEndpoint() == update.endpoint) {
+						row->clearVideoTrack();
+					}
+				}
 			}
 		}
 	}, _lifetime);
@@ -1493,15 +1525,18 @@ Row *MembersController::findRow(not_null<PeerData*> participantPeer) const {
 		delegate()->peerListFindRow(participantPeer->id.value));
 }
 
-Row *MembersController::findRow(uint32 audioSsrc) const {
-	if (!audioSsrc) {
+const Data::GroupCallParticipant *MembersController::findParticipant(
+		const std::string &endpoint) const {
+	if (endpoint.empty()) {
 		return nullptr;
 	}
 	const auto real = _call->lookupReal();
-	const auto participantPeer = real
-		? real->participantPeerByAudioSsrc(audioSsrc)
-		: nullptr;
-	return participantPeer ? findRow(participantPeer) : nullptr;
+	return real ? real->participantByEndpoint(endpoint) : nullptr;
+}
+
+Row *MembersController::findRow(const std::string &endpoint) const {
+	const auto participant = findParticipant(endpoint);
+	return participant ? findRow(participant->peer) : nullptr;
 }
 
 Main::Session &MembersController::session() const {
@@ -1845,15 +1880,35 @@ base::unique_qptr<Ui::PopupMenu> MembersController::createRowContextMenu(
 		_kickParticipantRequests.fire_copy(participantPeer);
 	});
 
-	const auto ssrc = real->ssrc();
-	if (ssrc != 0 && _call->streamsVideo(ssrc)) {
-		const auto pinned = (_call->videoStreamPinned() == ssrc);
-		const auto phrase = pinned
-			? tr::lng_group_call_context_unpin_video(tr::now)
-			: tr::lng_group_call_context_pin_video(tr::now);
-		result->addAction(phrase, [=] {
-			_call->pinVideoStream(pinned ? 0 : ssrc);
-		});
+	if (const auto real = _call->lookupReal()) {
+		const auto pinnedEndpoint = _call->videoEndpointPinned();
+		const auto participant = real->participantByEndpoint(pinnedEndpoint);
+		if (participant && participant->peer == participantPeer) {
+			result->addAction(
+				tr::lng_group_call_context_unpin_video(tr::now),
+				[=] { _call->pinVideoEndpoint(std::string()); });
+		} else {
+			const auto &participants = real->participants();
+			const auto i = ranges::find(
+				participants,
+				participantPeer,
+				&Data::GroupCallParticipant::peer);
+			if (i != end(participants)) {
+				const auto camera = i->cameraEndpoint();
+				const auto screen = i->screenEndpoint();
+				const auto streamsScreen = _call->streamsVideo(screen);
+				if (streamsScreen || _call->streamsVideo(camera)) {
+					const auto callback = [=] {
+						_call->pinVideoEndpoint(streamsScreen
+							? screen
+							: camera);
+					};
+					result->addAction(
+						tr::lng_group_call_context_pin_video(tr::now),
+						callback);
+				}
+			}
+		}
 	}
 
 	if (real->ssrc() != 0
@@ -2217,8 +2272,9 @@ void Members::setupPinnedVideo() {
 		_mode.changes() | rpl::filter(
 			_1 == PanelMode::Default
 		) | rpl::to_empty,
-		_call->videoStreamLargeValue() | rpl::filter([=](uint32 ssrc) {
-			return ssrc == _call->videoStreamPinned();
+		_call->videoEndpointLargeValue(
+		) | rpl::filter([=](const std::string &endpoint) {
+			return endpoint == _call->videoEndpointPinned();
 		}) | rpl::to_empty
 	) | rpl::start_with_next([=] {
 		_scroll->scrollToY(0);

Telegram/SourceFiles/calls/group/calls_group_panel.cpp

@@ -493,11 +493,11 @@ rpl::lifetime &Panel::chooseSourceInstanceLifetime() {
 }
 
 void Panel::chooseSourceAccepted(const QString &deviceId) {
-	_call->switchToScreenSharing(deviceId);
+	_call->toggleScreenSharing(deviceId);
 }
 
 void Panel::chooseSourceStop() {
-	_call->toggleVideo(false);
+	_call->toggleScreenSharing(std::nullopt);
 }
 
 void Panel::initWindow() {
@@ -722,10 +722,8 @@ void Panel::refreshLeftButton() {
 			&st::groupCallVideoActiveSmall);
 		_video->show();
 		_video->setClickedCallback([=] {
-			const auto sharing = _call->isScreenSharing();
-			const auto active = (_call->outgoingVideoTrack()->state()
-				== Webrtc::VideoState::Active);
-			_call->toggleVideo(sharing || !active);
+			_call->toggleVideo(_call->outgoingCameraTrack()->state()
+				!= Webrtc::VideoState::Active);
 		});
 		_video->setText(tr::lng_group_call_video());
 		_video->setColorOverrides(_mute->colorOverrides());

Telegram/SourceFiles/data/data_group_call.cpp

@@ -33,8 +33,22 @@ constexpr auto kWaitForUpdatesTimeout = 3 * crl::time(1000);
 	});
 }
 
+[[nodiscard]] const std::string &EmptyEndpoint() {
+	static const auto result = std::string();
+	return result;
+}
+
 } // namespace
 
+
+const std::string &GroupCallParticipant::cameraEndpoint() const {
+	return videoParams ? videoParams->camera.endpoint : EmptyEndpoint();
+}
+
+const std::string &GroupCallParticipant::screenEndpoint() const {
+	return videoParams ? videoParams->screen.endpoint : EmptyEndpoint();
+}
+
 GroupCall::GroupCall(
 	not_null<PeerData*> peer,
 	uint64 id,
@@ -193,13 +207,36 @@ PeerData *GroupCall::participantPeerByAudioSsrc(uint32 ssrc) const {
 		: nullptr;
 }
 
-PeerData *GroupCall::participantPeerByVideoSsrc(uint32 ssrc) const {
-	const auto i = _participantPeerByVideoSsrc.find(ssrc);
-	return (i != end(_participantPeerByVideoSsrc))
+PeerData *GroupCall::participantPeerByCameraSsrc(uint32 ssrc) const {
+	const auto i = _participantPeerByCameraSsrc.find(ssrc);
+	return (i != end(_participantPeerByCameraSsrc))
 		? i->second.get()
 		: nullptr;
 }
 
+PeerData *GroupCall::participantPeerByScreenSsrc(uint32 ssrc) const {
+	const auto i = _participantPeerByScreenSsrc.find(ssrc);
+	return (i != end(_participantPeerByScreenSsrc))
+		? i->second.get()
+		: nullptr;
+}
+
+const GroupCallParticipant *GroupCall::participantByEndpoint(
+		const std::string &endpoint) const {
+	if (endpoint.empty()) {
+		return nullptr;
+	}
+	for (const auto &participant : _participants) {
+		if (const auto params = participant.videoParams.get()) {
+			if (params->camera.endpoint == endpoint
+				|| params->screen.endpoint == endpoint) {
+				return &participant;
+			}
+		}
+	}
+	return nullptr;
+}
+
 rpl::producer<> GroupCall::participantsSliceAdded() {
 	return _participantsSliceAdded.events();
 }
@@ -305,7 +342,8 @@ void GroupCall::processFullCallFields(const MTPphone_GroupCall &call) {
 			_participants.clear();
 			_speakingByActiveFinishes.clear();
 			_participantPeerByAudioSsrc.clear();
-			_participantPeerByVideoSsrc.clear();
+			_participantPeerByCameraSsrc.clear();
+			_participantPeerByScreenSsrc.clear();
 			_allParticipantsLoaded = false;
 
 			applyParticipantsSlice(
@@ -499,10 +537,7 @@ void GroupCall::applyParticipantsSlice(
 						.was = *i,
 					};
 					_participantPeerByAudioSsrc.erase(i->ssrc);
-					const auto &all = VideoSourcesFromParams(i->videoParams);
-					for (const auto ssrc : all) {
-						_participantPeerByVideoSsrc.erase(ssrc);
-					}
+					eraseVideoSsrcs(*i);
 					_speakingByActiveFinishes.remove(participantPeer);
 					_participants.erase(i);
 					if (sliceSource != ApplySliceSource::SliceLoaded) {
@@ -543,8 +578,8 @@ void GroupCall::applyParticipantsSlice(
 				&& (!was || was->onlyMinLoaded);
 			const auto raisedHandRating
 				= data.vraise_hand_rating().value_or_empty();
-			const auto hasVideoParamsInformation = (sliceSource
-				!= ApplySliceSource::UpdateConstructed);
+			const auto hasVideoParamsInformation = true/*(sliceSource
+				!= ApplySliceSource::UpdateConstructed)*/;
 			const auto value = Participant{
 				.peer = participantPeer,
 				.videoParams = (hasVideoParamsInformation
@@ -571,19 +606,13 @@ void GroupCall::applyParticipantsSlice(
 				.muted = data.is_muted(),
 				.mutedByMe = mutedByMe,
 				.canSelfUnmute = canSelfUnmute,
-				.videoMuted = (data.vvideo() == nullptr),
 				.onlyMinLoaded = onlyMinLoaded,
 			};
 			if (i == end(_participants)) {
 				_participantPeerByAudioSsrc.emplace(
 					value.ssrc,
 					participantPeer);
-				const auto &all = VideoSourcesFromParams(value.videoParams);
-				for (const auto ssrc : all) {
-					_participantPeerByVideoSsrc.emplace(
-						ssrc,
-						participantPeer);
-				}
+				emplaceVideoSsrcs(value);
 				_participants.push_back(value);
 				if (const auto user = participantPeer->asUser()) {
 					_peer->owner().unregisterInvitedToCallUser(_id, user);
@@ -596,17 +625,8 @@ void GroupCall::applyParticipantsSlice(
 						participantPeer);
 				}
 				if (i->videoParams != value.videoParams) {
-					const auto &old = VideoSourcesFromParams(i->videoParams);
-					for (const auto ssrc : old) {
-						_participantPeerByVideoSsrc.erase(ssrc);
-					}
-					const auto &now = VideoSourcesFromParams(
-						value.videoParams);
-					for (const auto ssrc : now) {
-						_participantPeerByVideoSsrc.emplace(
-							ssrc,
-							participantPeer);
-					}
+					eraseVideoSsrcs(*i);
+					emplaceVideoSsrcs(value);
 				}
 				*i = value;
 			}
@@ -627,6 +647,29 @@ void GroupCall::applyParticipantsSlice(
 	}
 }
 
+void GroupCall::emplaceVideoSsrcs(const Participant &participant) {
+	if (const auto params = participant.videoParams.get()) {
+		const auto participantPeer = participant.peer;
+		for (const auto ssrc : params->camera.ssrcs) {
+			_participantPeerByCameraSsrc.emplace(ssrc, participantPeer);
+		}
+		for (const auto ssrc : params->screen.ssrcs) {
+			_participantPeerByScreenSsrc.emplace(ssrc, participantPeer);
+		}
+	}
+}
+
+void GroupCall::eraseVideoSsrcs(const Participant &participant) {
+	if (const auto params = participant.videoParams.get()) {
+		for (const auto ssrc : params->camera.ssrcs) {
+			_participantPeerByCameraSsrc.erase(ssrc);
+		}
+		for (const auto ssrc : params->screen.ssrcs) {
+			_participantPeerByScreenSsrc.erase(ssrc);
+		}
+	}
+}
+
 void GroupCall::applyLastSpoke(
 		uint32 ssrc,
 		LastSpokeTimes when,
@@ -840,6 +883,9 @@ void GroupCall::requestUnknownParticipants() {
 			}
 			_unknownSpokenPeerIds.remove(id);
 		}
+		if (!ssrcs.empty()) {
+			_participantsResolved.fire(&ssrcs);
+		}
 		requestUnknownParticipants();
 	}).fail([=](const MTP::Error &error) {
 		_unknownParticipantPeersRequestId = 0;

Telegram/SourceFiles/data/data_group_call.h

@@ -14,7 +14,7 @@ class PeerData;
 class ApiWrap;
 
 namespace Calls {
-struct VideoParams;
+struct ParticipantVideoParams;
 } // namespace Calls
 
 namespace Data {
@@ -26,7 +26,7 @@ struct LastSpokeTimes {
 
 struct GroupCallParticipant {
 	not_null<PeerData*> peer;
-	std::shared_ptr<Calls::VideoParams> videoParams;
+	std::shared_ptr<Calls::ParticipantVideoParams> videoParams;
 	TimeId date = 0;
 	TimeId lastActive = 0;
 	uint64 raisedHandRating = 0;
@@ -38,8 +38,10 @@ struct GroupCallParticipant {
 	bool muted = false;
 	bool mutedByMe = false;
 	bool canSelfUnmute = false;
-	bool videoMuted = true;
 	bool onlyMinLoaded = false;
+
+	[[nodiscard]] const std::string &cameraEndpoint() const;
+	[[nodiscard]] const std::string &screenEndpoint() const;
 };
 
 class GroupCall final {
@@ -104,7 +106,10 @@ public:
 	void requestParticipants();
 	[[nodiscard]] bool participantsLoaded() const;
 	[[nodiscard]] PeerData *participantPeerByAudioSsrc(uint32 ssrc) const;
-	[[nodiscard]] PeerData *participantPeerByVideoSsrc(uint32 ssrc) const;
+	[[nodiscard]] PeerData *participantPeerByCameraSsrc(uint32 ssrc) const;
+	[[nodiscard]] PeerData *participantPeerByScreenSsrc(uint32 ssrc) const;
+	[[nodiscard]] const Participant *participantByEndpoint(
+		const std::string &endpoint) const;
 
 	[[nodiscard]] rpl::producer<> participantsSliceAdded();
 	[[nodiscard]] rpl::producer<ParticipantUpdate> participantUpdated() const;
@@ -120,6 +125,12 @@ public:
 		PeerData *participantPeerLoaded);
 
 	void resolveParticipants(const base::flat_set<uint32> &ssrcs);
+	[[nodiscard]] rpl::producer<
+		not_null<const base::flat_map<
+			uint32,
+			LastSpokeTimes>*>> participantsResolved() const {
+		return _participantsResolved.events();
+	}
 
 	[[nodiscard]] int fullCount() const;
 	[[nodiscard]] rpl::producer<int> fullCountValue() const;
@@ -167,6 +178,9 @@ private:
 	void processSavedFullCall();
 	void finishParticipantsSliceRequest();
 
+	void emplaceVideoSsrcs(const Participant &participant);
+	void eraseVideoSsrcs(const Participant &participant);
+
 	const uint64 _id = 0;
 	const uint64 _accessHash = 0;
 
@@ -184,7 +198,8 @@ private:
 
 	std::vector<Participant> _participants;
 	base::flat_map<uint32, not_null<PeerData*>> _participantPeerByAudioSsrc;
-	base::flat_map<uint32, not_null<PeerData*>> _participantPeerByVideoSsrc;
+	base::flat_map<uint32, not_null<PeerData*>> _participantPeerByCameraSsrc;
+	base::flat_map<uint32, not_null<PeerData*>> _participantPeerByScreenSsrc;
 	base::flat_map<not_null<PeerData*>, crl::time> _speakingByActiveFinishes;
 	base::Timer _speakingByActiveFinishTimer;
 	QString _nextOffset;
@@ -196,6 +211,10 @@ private:
 
 	base::flat_map<uint32, LastSpokeTimes> _unknownSpokenSsrcs;
 	base::flat_map<PeerId, LastSpokeTimes> _unknownSpokenPeerIds;
+	rpl::event_stream<
+		not_null<const base::flat_map<
+			uint32,
+			LastSpokeTimes>*>> _participantsResolved;
 	mtpRequestId _unknownParticipantPeersRequestId = 0;
 
 	rpl::event_stream<ParticipantUpdate> _participantUpdates;

Telegram/ThirdParty/tgcalls

@@ -1 +1 @@
-Subproject commit 9928c00d231c1194896d582a71e3bb6d70ee2765
+Subproject commit 697ef2ed67cfcad81b0e61caf0945a057a847327