Apply volume_by_admin flag in voice chats.

Telegram/SourceFiles/calls/calls_group_call.cpp

@@ -377,10 +377,15 @@ void GroupCall::applySelfInCallLocally() {
 	const auto lastActive = (i != end(participants))
 		? i->lastActive
 		: TimeId(0);
+	const auto volume = (i != end(participants))
+		? i->volume
+		: Group::kDefaultVolume;
 	const auto canSelfUnmute = (muted() != MuteState::ForceMuted);
 	const auto flags = (canSelfUnmute ? Flag::f_can_self_unmute : Flag(0))
 		| (lastActive ? Flag::f_active_date : Flag(0))
 		| (_mySsrc ? Flag(0) : Flag::f_left)
+		| Flag::f_volume // Without flag the volume is reset to 100%.
+		| Flag::f_volume_by_admin // Self volume can only be set by admin.
 		| ((muted() != MuteState::Active) ? Flag::f_muted : Flag(0));
 	call->applyUpdateChecked(
 		MTP_updateGroupCallParticipants(
@@ -393,7 +398,7 @@ void GroupCall::applySelfInCallLocally() {
 					MTP_int(date),
 					MTP_int(lastActive),
 					MTP_int(_mySsrc),
-					MTP_int(Group::kDefaultVolume))), // volume
+					MTP_int(volume))),
 			MTP_int(0)).c_updateGroupCallParticipants());
 }
 
@@ -410,6 +415,9 @@ void GroupCall::applyParticipantLocally(
 	using Flag = MTPDgroupCallParticipant::Flag;
 	const auto flags = (canSelfUnmute ? Flag::f_can_self_unmute : Flag(0))
 		| Flag::f_volume // Without flag the volume is reset to 100%.
+		| ((participant->applyVolumeFromMin && !volume)
+			? Flag::f_volume_by_admin
+			: Flag(0))
 		| (participant->lastActive ? Flag::f_active_date : Flag(0))
 		| (!mute
 			? Flag(0)

Telegram/SourceFiles/calls/calls_group_common.h

@@ -19,6 +19,7 @@ struct MuteRequest {
 	bool mute = false;
 	bool locallyOnly = false;
 };
+
 struct VolumeRequest {
 	not_null<UserData*> user;
 	int volume = kDefaultVolume;

Telegram/SourceFiles/data/data_group_call.cpp

@@ -276,9 +276,14 @@ void GroupCall::applyParticipantsSlice(
 				&& ((was ? was->speaking : false)
 					|| (!amInCall
 						&& (lastActive + speakingAfterActive > now)));
-			const auto volume = (was && data.is_min())
+			const auto volume = (was
+				&& !was->applyVolumeFromMin
+				&& data.is_min())
 				? was->volume
 				: data.vvolume().value_or(Calls::Group::kDefaultVolume);
+			const auto applyVolumeFromMin = (was && data.is_min())
+				? was->applyVolumeFromMin
+				: (data.is_min() || data.is_volume_by_admin());
 			const auto mutedByMe = (was && data.is_min())
 				? was->mutedByMe
 				: data.is_muted_by_you();
@@ -290,6 +295,7 @@ void GroupCall::applyParticipantsSlice(
 				.lastActive = lastActive,
 				.ssrc = uint32(data.vsource().v),
 				.volume = volume,
+				.applyVolumeFromMin = applyVolumeFromMin,
 				.speaking = canSelfUnmute && (was ? was->speaking : false),
 				.muted = data.is_muted(),
 				.mutedByMe = mutedByMe,

Telegram/SourceFiles/data/data_group_call.h

@@ -38,6 +38,7 @@ public:
 		TimeId lastActive = 0;
 		uint32 ssrc = 0;
 		int volume = 0;
+		bool applyVolumeFromMin = true;
 		bool sounding = false;
 		bool speaking = false;
 		bool muted = false;