fix: centralize screen share pipeline to fix 270p resolution ramp-up failure
Screen sharing was publishing at h360 (640x360) and never ramping to target resolution due to stale closure in setTimeout, wrong initial quality anchor, and 5 competing code paths with inconsistent bitrates. - Create utils/screenShare.ts as single source of truth for all screen share ops - Publish at target resolution from the start (not h360 → ramp) - Read store at call time in timers (eliminates stale closure bug) - Use maintain-resolution for screen content, maintain-framerate for camera - Fix OS-level "Stop sharing" not resetting store or restoring AEC - Enable dynacast for SFU quality signaling - Reconcile QUALITY_MAP to canonical bitrates across all 7 files
This commit is contained in:
Jannis Braun
@@ -4,17 +4,7 @@ import { useServerStore } from '../../stores/serverStore';
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import { useAuthStore } from '../../stores/authStore';
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import { getActiveRoom } from '../../hooks/useLiveKit';
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import { wsSend } from '../../hooks/useWebSocket';
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import { AudioManager } from '../../audio/AudioManager';
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import { VideoPresets, VideoPreset } from 'livekit-client';
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const QUALITY_MAP: Record<string, any> = {
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'1080p60': new VideoPreset(1920, 1080, 15_000_000, 60),
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'1080p': new VideoPreset(1920, 1080, 8_000_000, 30),
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'720p60': new VideoPreset(1280, 720, 8_000_000, 60),
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'720p': new VideoPreset(1280, 720, 5_000_000, 30),
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'540p': new VideoPreset(960, 540, 2_000_000, 30),
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'360p': new VideoPreset(640, 360, 1_000_000, 30),
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};
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import { SCREEN_QUALITY_MAP, startScreenShare, stopScreenShare } from '../../utils/screenShare';
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export function DmCallView() {
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const activeDmCall = useVoiceStore((s) => s.activeDmCall);
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@@ -26,7 +16,6 @@ export function DmCallView() {
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const toggleMic = useVoiceStore((s) => s.toggleMic);
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const toggleDeafen = useVoiceStore((s) => s.toggleDeafen);
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const toggleCamera = useVoiceStore((s) => s.toggleCamera);
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const toggleScreenShare = useVoiceStore((s) => s.toggleScreenShare);
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const setActiveDmCall = useVoiceStore((s) => s.setActiveDmCall);
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const leaveVoice = useVoiceStore((s) => s.leaveVoice);
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const speakingParticipantIds = useVoiceStore((s) => s.speakingParticipantIds);
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@@ -69,11 +58,11 @@ export function DmCallView() {
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const willEnable = !isCameraOn;
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if (willEnable) {
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const videoQuality = useVoiceStore.getState().videoQuality;
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const preset = QUALITY_MAP[videoQuality];
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const preset = SCREEN_QUALITY_MAP[videoQuality];
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if (preset) {
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await room.localParticipant.setCameraEnabled(true,
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await room.localParticipant.setCameraEnabled(true,
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{ resolution: preset.resolution },
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{
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{
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videoEncoding: preset.encoding,
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simulcast: videoQuality === '1080p' || videoQuality === '720p'
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}
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@@ -93,13 +82,10 @@ export function DmCallView() {
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if (!room) return;
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try {
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if (!isScreenSharing) {
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AudioManager.getInstance().setScreenShareActive(true);
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await room.localParticipant.setScreenShareEnabled(true, { audio: true });
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await startScreenShare(room);
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} else {
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await room.localParticipant.setScreenShareEnabled(false);
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AudioManager.getInstance().setScreenShareActive(false);
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await stopScreenShare(room);
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}
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toggleScreenShare();
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} catch (err) {
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console.error('[DmCallView] Failed to toggle screen share:', err);
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}
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@@ -2,8 +2,8 @@ import React, { useRef, useEffect, useState, useCallback } from 'react';
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import { Avatar } from '../ui/Avatar';
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import { useVoiceStore } from '../../stores/voiceStore';
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import { getActiveRoom, setStreamSubscription } from '../../hooks/useLiveKit';
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import { AudioManager } from '../../audio/AudioManager';
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import { VideoQualityPopover } from './VideoQualityPopover';
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import { stopScreenShare, changeScreenShare } from '../../utils/screenShare';
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import type { StreamTile as StreamTileType } from '../../hooks/useLiveKit';
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interface StreamTileProps {
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@@ -107,22 +107,14 @@ export function StreamTile({ tile, large }: StreamTileProps) {
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const handleStopStreaming = useCallback(async () => {
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const room = getActiveRoom();
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if (room) {
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await room.localParticipant.setScreenShareEnabled(false);
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AudioManager.getInstance().setScreenShareActive(false);
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useVoiceStore.getState().toggleScreenShare();
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await stopScreenShare(room);
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}
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}, []);
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const handleChangeStream = useCallback(async () => {
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const room = getActiveRoom();
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if (room) {
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await room.localParticipant.setScreenShareEnabled(false);
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// Small delay then re-start to re-trigger the source picker
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setTimeout(async () => {
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await room.localParticipant.setScreenShareEnabled(true, {
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audio: true,
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});
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}, 200);
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await changeScreenShare(room);
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}
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}, []);
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@@ -1,7 +1,5 @@
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import React, { useRef, useEffect } from 'react';
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import { useVoiceStore } from '../../stores/voiceStore';
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import { getActiveRoom } from '../../hooks/useLiveKit';
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import { VideoPresets, VideoPreset } from 'livekit-client';
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interface VideoQualityPopoverProps {
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open: boolean;
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@@ -10,23 +8,14 @@ interface VideoQualityPopoverProps {
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}
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const PRESETS = [
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{ value: '1080p60' as const, label: '1080p 60fps', desc: '1920x1080, 10000 kbps' },
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{ value: '1080p' as const, label: '1080p 30fps', desc: '1920x1080, 5000 kbps' },
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{ value: '720p60' as const, label: '720p 60fps', desc: '1280x720, 5000 kbps' },
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{ value: '720p' as const, label: '720p 30fps', desc: '1280x720, 3000 kbps' },
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{ value: '540p' as const, label: '540p 30fps', desc: '960x540, 1500 kbps' },
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{ value: '360p' as const, label: '360p 30fps', desc: '640x360, 800 kbps' },
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{ value: '1080p60' as const, label: '1080p 60fps', desc: '1920x1080, 12000 kbps' },
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{ value: '1080p' as const, label: '1080p 30fps', desc: '1920x1080, 8000 kbps' },
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{ value: '720p60' as const, label: '720p 60fps', desc: '1280x720, 8000 kbps' },
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{ value: '720p' as const, label: '720p 30fps', desc: '1280x720, 5000 kbps' },
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{ value: '540p' as const, label: '540p 30fps', desc: '960x540, 2000 kbps' },
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{ value: '360p' as const, label: '360p 30fps', desc: '640x360, 1000 kbps' },
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] as const;
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const QUALITY_MAP: Record<string, VideoPreset> = {
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'1080p60': new VideoPreset(1920, 1080, 15_000_000, 60),
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'1080p': new VideoPreset(1920, 1080, 8_000_000, 30),
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'720p60': new VideoPreset(1280, 720, 8_000_000, 60),
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'720p': new VideoPreset(1280, 720, 5_000_000, 30),
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'540p': new VideoPreset(960, 540, 2_000_000, 30),
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'360p': new VideoPreset(640, 360, 1_000_000, 30),
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};
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export function VideoQualityPopover({ open, onClose, anchorRect }: VideoQualityPopoverProps) {
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const popoverRef = useRef<HTMLDivElement>(null);
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const videoQuality = useVoiceStore((s) => s.videoQuality);
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@@ -3,18 +3,8 @@ import { useVoiceStore } from '../../stores/voiceStore';
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import { useUIStore } from '../../stores/uiStore';
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import { getActiveRoom } from '../../hooks/useLiveKit';
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import { wsSend } from '../../hooks/useWebSocket';
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import { AudioManager } from '../../audio/AudioManager';
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import { VideoQualityPopover } from './VideoQualityPopover';
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import { VideoPresets, VideoPreset } from 'livekit-client';
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const QUALITY_MAP: Record<string, any> = {
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'1080p60': new VideoPreset(1920, 1080, 15_000_000, 60),
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'1080p': new VideoPreset(1920, 1080, 8_000_000, 30),
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'720p60': new VideoPreset(1280, 720, 8_000_000, 60),
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'720p': new VideoPreset(1280, 720, 5_000_000, 30),
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'540p': new VideoPreset(960, 540, 2_000_000, 30),
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'360p': new VideoPreset(640, 360, 1_000_000, 30),
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};
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import { SCREEN_QUALITY_MAP, startScreenShare, stopScreenShare } from '../../utils/screenShare';
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const btnBase = 'w-10 h-10 flex items-center justify-center rounded-full transition-colors';
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const btnDefault = `${btnBase} bg-[#1e1f22] text-discord-text-secondary hover:bg-[#2b2d31] hover:text-discord-text-primary`;
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@@ -29,7 +19,6 @@ export function VoiceControlBar() {
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const toggleMic = useVoiceStore((s) => s.toggleMic);
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const toggleDeafen = useVoiceStore((s) => s.toggleDeafen);
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const toggleCamera = useVoiceStore((s) => s.toggleCamera);
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const toggleScreenShare = useVoiceStore((s) => s.toggleScreenShare);
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const voiceChatOpen = useUIStore((s) => s.voiceChatOpen);
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const toggleVoiceChat = useUIStore((s) => s.toggleVoiceChat);
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const voiceFullscreen = useUIStore((s) => s.voiceFullscreen);
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@@ -72,7 +61,7 @@ export function VoiceControlBar() {
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const willEnable = !isCameraOn;
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if (willEnable) {
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const videoQuality = useVoiceStore.getState().videoQuality;
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const preset = QUALITY_MAP[videoQuality];
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const preset = SCREEN_QUALITY_MAP[videoQuality];
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if (preset) {
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await room.localParticipant.setCameraEnabled(true,
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{ resolution: preset.resolution },
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@@ -98,13 +87,10 @@ export function VoiceControlBar() {
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if (!room) return;
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try {
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if (!isScreenSharing) {
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AudioManager.getInstance().setScreenShareActive(true);
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await room.localParticipant.setScreenShareEnabled(true, { audio: true });
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await startScreenShare(room);
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} else {
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await room.localParticipant.setScreenShareEnabled(false);
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AudioManager.getInstance().setScreenShareActive(false);
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await stopScreenShare(room);
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}
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toggleScreenShare();
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} catch (err) {
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console.error('[VoiceControlBar] Failed to toggle screen share:', err);
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}
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@@ -3,9 +3,9 @@ import { useVoiceStore } from '../../stores/voiceStore';
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import { useServerStore } from '../../stores/serverStore';
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import { getActiveRoom } from '../../hooks/useLiveKit';
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import { wsSend } from '../../hooks/useWebSocket';
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import { AudioManager } from '../../audio/AudioManager';
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import { VideoQualityPopover } from './VideoQualityPopover';
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import { ConnectionInfoPopover } from './ConnectionInfoPopover';
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import { startScreenShare, stopScreenShare } from '../../utils/screenShare';
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/**
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* VoiceControls renders the voice status + button rows.
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@@ -16,7 +16,6 @@ export function VoiceControls() {
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const isCameraOn = useVoiceStore((s) => s.isCameraOn);
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const isScreenSharing = useVoiceStore((s) => s.isScreenSharing);
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const toggleCamera = useVoiceStore((s) => s.toggleCamera);
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const toggleScreenShare = useVoiceStore((s) => s.toggleScreenShare);
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const rnnoiseEnabled = useVoiceStore((s) => s.rnnoiseEnabled);
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const setRnnoiseEnabled = useVoiceStore((s) => s.setRnnoiseEnabled);
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const connectionError = useVoiceStore((s) => s.connectionError);
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@@ -47,13 +46,10 @@ export function VoiceControls() {
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if (!room) return;
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try {
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if (!isScreenSharing) {
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AudioManager.getInstance().setScreenShareActive(true);
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await room.localParticipant.setScreenShareEnabled(true, { audio: true });
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await startScreenShare(room);
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} else {
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await room.localParticipant.setScreenShareEnabled(false);
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AudioManager.getInstance().setScreenShareActive(false);
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await stopScreenShare(room);
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}
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toggleScreenShare();
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} catch (err) {
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console.error('[VoiceControls] Failed to toggle screen share:', err);
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}
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@@ -18,21 +18,14 @@ import { api } from '../api/client';
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import { useVoiceStore } from '../stores/voiceStore';
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import { AudioManager } from '../audio/AudioManager';
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import { SpeakingDetector } from '../audio/SpeakingDetector';
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/**
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* OPENCORD NATIVE OVERDRIVE PIPELINE v33
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*/
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const QUALITY_MAP: Record<string, VideoPreset> = {
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'1080p60': new VideoPreset(1920, 1080, 12_000_000, 60),
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'1080p': new VideoPreset(1920, 1080, 8_000_000, 30),
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'720p60': new VideoPreset(1280, 720, 8_000_000, 60),
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'720p': new VideoPreset(1280, 720, 4_000_000, 30),
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'540p': new VideoPreset(960, 540, 2_000_000, 30),
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'360p': new VideoPreset(640, 360, 1_000_000, 30),
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};
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const AUTO_PRESET = QUALITY_MAP['720p60']!;
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import {
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SCREEN_QUALITY_MAP,
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AUTO_PRESET,
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applyOverdrive,
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startScreenShare,
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stopScreenShare,
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handleScreenShareUnpublished,
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} from '../utils/screenShare';
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let _activeRoom: Room | null = null;
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@@ -114,31 +107,6 @@ function parseIdentity(identity: string): { userId: string; username: string } {
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let _connectGeneration = 0;
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async function applyOverdriveHammer(room: Room, source: Track.Source, preset: VideoPreset) {
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try {
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const pub = room.localParticipant.getTrackPublications().find(p => p.source === source);
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if (!pub?.track) return;
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const engine = (room as any).engine;
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const pc = engine?.pcManager?.publisher?.pc || engine?.publisher?.pc || engine?.pc;
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if (pc) {
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const senders = (pc as RTCPeerConnection).getSenders();
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const sender = senders.find(s => s.track?.id === (pub.track as any).mediaStreamTrack?.id);
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if (sender) {
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const params = sender.getParameters();
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if (params.encodings && params.encodings[0]) {
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params.encodings[0].maxBitrate = preset.encoding.maxBitrate;
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(params.encodings[0] as any).minBitrate = 2_000_000;
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params.encodings[0].maxFramerate = preset.encoding.maxFramerate;
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params.encodings[0].networkPriority = 'high';
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// @ts-ignore
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params.degradationPreference = 'maintain-framerate';
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await sender.setParameters(params);
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}
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}
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}
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} catch (err) {}
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}
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export function useLiveKit() {
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const [room, setRoom] = useState<Room | null>(null);
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@@ -357,11 +325,10 @@ export function useLiveKit() {
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try {
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const { token, url } = await api.livekit.token(channelId);
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if (gen !== _connectGeneration) return;
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const newRoom = new Room({ adaptiveStream: false, dynacast: false, publishDefaults: { videoCodec: 'h264', simulcast: false } });
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const newRoom = new Room({ adaptiveStream: false, dynacast: true, publishDefaults: { videoCodec: 'h264', simulcast: false } });
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roomRef.current = newRoom;
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const guardedUpdate = () => { if (roomRef.current === newRoom) updateParticipants(); };
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// ... existing event listeners ...
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newRoom.on(RoomEvent.ParticipantConnected, (participant) => {
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guardedUpdate();
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if (useVoiceStore.getState().isDeafened) {
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@@ -399,6 +366,8 @@ export function useLiveKit() {
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if (publication.source === Track.Source.ScreenShare) {
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const { userId } = parseIdentity(newRoom.localParticipant.identity);
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useVoiceStore.getState().unwatchStream(userId);
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// OS-level "Stop sharing" fires this without going through stopScreenShare
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handleScreenShareUnpublished();
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}
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guardedUpdate();
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});
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@@ -530,7 +499,7 @@ export function useLiveKit() {
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try {
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const { token, url } = await api.livekit.dmToken(dmChannelId);
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if (gen !== _connectGeneration) return;
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const newRoom = new Room({ adaptiveStream: false, dynacast: false, publishDefaults: { videoCodec: 'h264', simulcast: false } });
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const newRoom = new Room({ adaptiveStream: false, dynacast: true, publishDefaults: { videoCodec: 'h264', simulcast: false } });
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roomRef.current = newRoom;
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const guardedUpdate = () => { if (roomRef.current === newRoom) updateParticipants(); };
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newRoom.on(RoomEvent.ParticipantConnected, guardedUpdate);
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@@ -558,6 +527,8 @@ export function useLiveKit() {
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if (publication.source === Track.Source.ScreenShare) {
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const { userId } = parseIdentity(newRoom.localParticipant.identity);
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useVoiceStore.getState().unwatchStream(userId);
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// OS-level "Stop sharing" fires this without going through stopScreenShare
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handleScreenShareUnpublished();
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}
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guardedUpdate();
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});
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@@ -664,55 +635,23 @@ export function useLiveKit() {
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const toggleCamera = useCallback(async () => {
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if (roomRef.current) {
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if (!isCameraOn) {
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const preset = QUALITY_MAP[videoQuality] || VideoPresets.h720;
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const preset = SCREEN_QUALITY_MAP[videoQuality] || VideoPresets.h720;
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await roomRef.current.localParticipant.setCameraEnabled(true, { resolution: preset.resolution, frameRate: preset.encoding.maxFramerate }, { videoCodec: 'h264', videoEncoding: preset.encoding, simulcast: false });
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setTimeout(() => { if (roomRef.current) applyOverdriveHammer(roomRef.current, Track.Source.Camera, preset); }, 2000);
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setTimeout(() => { if (roomRef.current) applyOverdrive(roomRef.current, Track.Source.Camera, preset); }, 2000);
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} else { await roomRef.current.localParticipant.setCameraEnabled(false); }
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updateParticipants();
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}
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}, [isCameraOn, videoQuality, updateParticipants]);
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const toggleScreenShare = useCallback(async () => {
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if (roomRef.current) {
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if (!isScreenSharing) {
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// Notify AudioManager BEFORE enabling screen share so the mic track
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// gets republished with AEC off, preventing Chrome's ducking.
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AudioManager.getInstance().setScreenShareActive(true);
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const preset = QUALITY_MAP[videoQuality] || AUTO_PRESET;
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const track = await roomRef.current.localParticipant.setScreenShareEnabled(true, {
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audio: true,
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resolution: VideoPresets.h360.resolution,
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// @ts-ignore
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||||
frameRate: 30,
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||||
}, {
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||||
videoCodec: 'h264', videoEncoding: VideoPresets.h360.encoding, simulcast: false, priority: 'very-high'
|
||||
} as any);
|
||||
|
||||
if (track) {
|
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setTimeout(async () => {
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if (roomRef.current && isScreenSharing) {
|
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const screenPub = roomRef.current.localParticipant.getTrackPublications().find(p => p.source === Track.Source.ScreenShare);
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if (screenPub?.track?.mediaStreamTrack) {
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await screenPub.track.mediaStreamTrack.applyConstraints({
|
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width: { ideal: preset.resolution.width },
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||||
height: { ideal: preset.resolution.height },
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||||
frameRate: { ideal: preset.encoding.maxFramerate, min: 30 }
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||||
});
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||||
await applyOverdriveHammer(roomRef.current, Track.Source.ScreenShare, preset);
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||||
}
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||||
}
|
||||
}, 2000);
|
||||
setTimeout(() => applyOverdriveHammer(roomRef.current!, Track.Source.ScreenShare, preset), 5000);
|
||||
}
|
||||
} else {
|
||||
await roomRef.current.localParticipant.setScreenShareEnabled(false);
|
||||
// Restore user's AEC preference after screen share ends
|
||||
AudioManager.getInstance().setScreenShareActive(false);
|
||||
}
|
||||
updateParticipants();
|
||||
if (!roomRef.current) return;
|
||||
if (!useVoiceStore.getState().isScreenSharing) {
|
||||
await startScreenShare(roomRef.current);
|
||||
} else {
|
||||
await stopScreenShare(roomRef.current);
|
||||
}
|
||||
}, [isScreenSharing, videoQuality, updateParticipants]);
|
||||
updateParticipants();
|
||||
}, [updateParticipants]);
|
||||
|
||||
useEffect(() => {
|
||||
updateParticipants();
|
||||
@@ -720,7 +659,7 @@ export function useLiveKit() {
|
||||
|
||||
useEffect(() => {
|
||||
if (!room) return;
|
||||
const preset = QUALITY_MAP[videoQuality] || AUTO_PRESET;
|
||||
const preset = SCREEN_QUALITY_MAP[videoQuality] || AUTO_PRESET;
|
||||
const updateActiveTracks = async () => {
|
||||
if (isScreenSharing) {
|
||||
const screenPub = room.localParticipant.getTrackPublications().find(p => p.source === Track.Source.ScreenShare);
|
||||
@@ -729,10 +668,10 @@ export function useLiveKit() {
|
||||
if (mediaTrack) {
|
||||
await mediaTrack.applyConstraints({ width: { ideal: preset.resolution.width }, height: { ideal: preset.resolution.height }, frameRate: { ideal: preset.encoding.maxFramerate } });
|
||||
}
|
||||
await applyOverdriveHammer(room, Track.Source.ScreenShare, preset);
|
||||
await applyOverdrive(room, Track.Source.ScreenShare, preset);
|
||||
}
|
||||
}
|
||||
if (isCameraOn) { await applyOverdriveHammer(room, Track.Source.Camera, preset); }
|
||||
if (isCameraOn) { await applyOverdrive(room, Track.Source.Camera, preset); }
|
||||
};
|
||||
updateActiveTracks().catch(() => {});
|
||||
}, [room, videoQuality, isScreenSharing, isCameraOn]);
|
||||
|
||||
@@ -0,0 +1,162 @@
|
||||
import { Room, Track, VideoPreset } from 'livekit-client';
|
||||
import { useVoiceStore } from '../stores/voiceStore';
|
||||
import { AudioManager } from '../audio/AudioManager';
|
||||
|
||||
/**
|
||||
* Canonical quality presets — single source of truth.
|
||||
* Used by all screen share entry points, camera controls, and VideoQualityPopover.
|
||||
*/
|
||||
export const SCREEN_QUALITY_MAP: Record<string, VideoPreset> = {
|
||||
'1080p60': new VideoPreset(1920, 1080, 12_000_000, 60),
|
||||
'1080p': new VideoPreset(1920, 1080, 8_000_000, 30),
|
||||
'720p60': new VideoPreset(1280, 720, 8_000_000, 60),
|
||||
'720p': new VideoPreset(1280, 720, 5_000_000, 30),
|
||||
'540p': new VideoPreset(960, 540, 2_000_000, 30),
|
||||
'360p': new VideoPreset(640, 360, 1_000_000, 30),
|
||||
};
|
||||
|
||||
export const AUTO_PRESET = SCREEN_QUALITY_MAP['720p60']!;
|
||||
|
||||
/**
|
||||
* Apply overdrive hammer to a published track — forces bitrate/resolution/framerate
|
||||
* directly on the RTCRtpSender, bypassing LiveKit's conservative defaults.
|
||||
*
|
||||
* Screen share: uses 'maintain-resolution' (text/code readability matters more than fps)
|
||||
* Camera: uses 'maintain-framerate' (smooth motion matters more than sharpness)
|
||||
*/
|
||||
export async function applyOverdrive(
|
||||
room: Room,
|
||||
source: Track.Source,
|
||||
preset: VideoPreset,
|
||||
): Promise<void> {
|
||||
try {
|
||||
const pub = room.localParticipant.getTrackPublications().find(p => p.source === source);
|
||||
if (!pub?.track) return;
|
||||
|
||||
const engine = (room as any).engine;
|
||||
const pc = engine?.pcManager?.publisher?.pc || engine?.publisher?.pc || engine?.pc;
|
||||
if (!pc) return;
|
||||
|
||||
const senders = (pc as RTCPeerConnection).getSenders();
|
||||
const sender = senders.find(s => s.track?.id === (pub.track as any).mediaStreamTrack?.id);
|
||||
if (!sender) return;
|
||||
|
||||
const params = sender.getParameters();
|
||||
if (!params.encodings?.[0]) return;
|
||||
|
||||
params.encodings[0].maxBitrate = preset.encoding.maxBitrate;
|
||||
params.encodings[0].maxFramerate = preset.encoding.maxFramerate;
|
||||
params.encodings[0].networkPriority = 'high';
|
||||
|
||||
const isScreenShare = source === Track.Source.ScreenShare;
|
||||
if (isScreenShare) {
|
||||
(params as any).degradationPreference = 'maintain-resolution';
|
||||
(params.encodings[0] as any).minBitrate = 2_000_000;
|
||||
} else {
|
||||
(params as any).degradationPreference = 'maintain-framerate';
|
||||
}
|
||||
|
||||
await sender.setParameters(params);
|
||||
} catch (err) {
|
||||
console.warn('[ScreenShare] Failed to apply overdrive:', err);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Start screen sharing at target quality from the beginning.
|
||||
* Reads videoQuality from store at call time — no stale closures.
|
||||
*/
|
||||
export async function startScreenShare(room: Room): Promise<boolean> {
|
||||
const { videoQuality } = useVoiceStore.getState();
|
||||
const preset = SCREEN_QUALITY_MAP[videoQuality] || AUTO_PRESET;
|
||||
|
||||
// Notify AudioManager BEFORE enabling screen share so the mic track
|
||||
// gets republished with AEC off, preventing Chrome's ducking.
|
||||
AudioManager.getInstance().setScreenShareActive(true);
|
||||
|
||||
try {
|
||||
const track = await room.localParticipant.setScreenShareEnabled(true, {
|
||||
audio: true,
|
||||
resolution: preset.resolution,
|
||||
// @ts-ignore — LiveKit accepts frameRate at capture level
|
||||
frameRate: preset.encoding.maxFramerate,
|
||||
}, {
|
||||
videoCodec: 'h264',
|
||||
videoEncoding: preset.encoding,
|
||||
simulcast: false,
|
||||
} as any);
|
||||
|
||||
if (!track) {
|
||||
// User cancelled the screen picker
|
||||
AudioManager.getInstance().setScreenShareActive(false);
|
||||
return false;
|
||||
}
|
||||
|
||||
// Update store — screen share is now active
|
||||
useVoiceStore.setState({ isScreenSharing: true });
|
||||
|
||||
// Overdrive at 2s — after WebRTC finishes negotiation
|
||||
setTimeout(async () => {
|
||||
// Read state fresh at timer fire — no stale closure
|
||||
if (!useVoiceStore.getState().isScreenSharing) return;
|
||||
const currentPreset = SCREEN_QUALITY_MAP[useVoiceStore.getState().videoQuality] || AUTO_PRESET;
|
||||
|
||||
const screenPub = room.localParticipant.getTrackPublications()
|
||||
.find(p => p.source === Track.Source.ScreenShare);
|
||||
if (screenPub?.track?.mediaStreamTrack) {
|
||||
await screenPub.track.mediaStreamTrack.applyConstraints({
|
||||
width: { ideal: currentPreset.resolution.width },
|
||||
height: { ideal: currentPreset.resolution.height },
|
||||
frameRate: { ideal: currentPreset.encoding.maxFramerate, min: 15 },
|
||||
});
|
||||
}
|
||||
await applyOverdrive(room, Track.Source.ScreenShare, currentPreset);
|
||||
}, 2000);
|
||||
|
||||
// Second overdrive at 5s — safety net for slow BWE convergence
|
||||
setTimeout(async () => {
|
||||
if (!useVoiceStore.getState().isScreenSharing) return;
|
||||
const currentPreset = SCREEN_QUALITY_MAP[useVoiceStore.getState().videoQuality] || AUTO_PRESET;
|
||||
await applyOverdrive(room, Track.Source.ScreenShare, currentPreset);
|
||||
}, 5000);
|
||||
|
||||
return true;
|
||||
} catch (err) {
|
||||
console.error('[ScreenShare] Failed to start screen share:', err);
|
||||
AudioManager.getInstance().setScreenShareActive(false);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Stop screen sharing, restore AEC, reset store.
|
||||
*/
|
||||
export async function stopScreenShare(room: Room): Promise<void> {
|
||||
try {
|
||||
await room.localParticipant.setScreenShareEnabled(false);
|
||||
} catch (err) {
|
||||
console.error('[ScreenShare] Failed to stop screen share:', err);
|
||||
}
|
||||
AudioManager.getInstance().setScreenShareActive(false);
|
||||
useVoiceStore.setState({ isScreenSharing: false });
|
||||
}
|
||||
|
||||
/**
|
||||
* Change the screen share source — stops current stream, re-triggers picker.
|
||||
*/
|
||||
export async function changeScreenShare(room: Room): Promise<void> {
|
||||
await room.localParticipant.setScreenShareEnabled(false);
|
||||
// Small delay then re-start to re-trigger the source picker
|
||||
setTimeout(async () => {
|
||||
await startScreenShare(room);
|
||||
}, 200);
|
||||
}
|
||||
|
||||
/**
|
||||
* Called from LocalTrackUnpublished handler to handle OS-level "Stop sharing".
|
||||
* Resets store state and restores AEC without trying to unpublish (already done).
|
||||
*/
|
||||
export function handleScreenShareUnpublished(): void {
|
||||
AudioManager.getInstance().setScreenShareActive(false);
|
||||
useVoiceStore.setState({ isScreenSharing: false });
|
||||
}
|
||||
Reference in New Issue
Block a user