ZIm/crates/live_kit/LiveKitBridge/Sources/LiveKitBridge/LiveKitBridge.swift
2022-09-16 11:03:15 +02:00

105 lines
4.5 KiB
Swift

import Foundation
import LiveKit
import WebRTC
class LKRoomDelegate: RoomDelegate {
var data: UnsafeRawPointer
var onDidSubscribeToRemoteVideoTrack: @convention(c) (UnsafeRawPointer, UnsafeRawPointer) -> Void
init(data: UnsafeRawPointer, onDidSubscribeToRemoteVideoTrack: @escaping @convention(c) (UnsafeRawPointer, UnsafeRawPointer) -> Void) {
self.data = data
self.onDidSubscribeToRemoteVideoTrack = onDidSubscribeToRemoteVideoTrack
}
func room(_ room: Room, participant: RemoteParticipant, didSubscribe publication: RemoteTrackPublication, track: Track) {
if track.kind == .video {
self.onDidSubscribeToRemoteVideoTrack(self.data, Unmanaged.passRetained(track).toOpaque())
}
}
}
class LKVideoRenderer: NSObject, VideoRenderer {
var data: UnsafeRawPointer
var onFrame: @convention(c) (UnsafeRawPointer, CVPixelBuffer) -> Void
var onDrop: @convention(c) (UnsafeRawPointer) -> Void
var adaptiveStreamIsEnabled: Bool = false
var adaptiveStreamSize: CGSize = .zero
init(data: UnsafeRawPointer, onFrame: @escaping @convention(c) (UnsafeRawPointer, CVPixelBuffer) -> Void, onDrop: @escaping @convention(c) (UnsafeRawPointer) -> Void) {
self.data = data
self.onFrame = onFrame
self.onDrop = onDrop
}
deinit {
self.onDrop(self.data)
}
func setSize(_ size: CGSize) {
print("Called setSize", size);
}
func renderFrame(_ frame: RTCVideoFrame?) {
let buffer = frame?.buffer as? RTCCVPixelBuffer
if let pixelBuffer = buffer?.pixelBuffer {
self.onFrame(self.data, pixelBuffer)
}
}
}
@_cdecl("LKRelease")
public func LKRelease(ptr: UnsafeRawPointer) {
let _ = Unmanaged<AnyObject>.fromOpaque(ptr).takeRetainedValue()
}
@_cdecl("LKRoomDelegateCreate")
public func LKRoomDelegateCreate(data: UnsafeRawPointer, onDidSubscribeToRemoteVideoTrack: @escaping @convention(c) (UnsafeRawPointer, UnsafeRawPointer) -> Void) -> UnsafeMutableRawPointer {
let delegate = LKRoomDelegate(data: data, onDidSubscribeToRemoteVideoTrack: onDidSubscribeToRemoteVideoTrack)
return Unmanaged.passRetained(delegate).toOpaque()
}
@_cdecl("LKRoomCreate")
public func LKRoomCreate(delegate: UnsafeRawPointer) -> UnsafeMutableRawPointer {
let delegate = Unmanaged<LKRoomDelegate>.fromOpaque(delegate).takeUnretainedValue()
return Unmanaged.passRetained(Room(delegate: delegate)).toOpaque()
}
@_cdecl("LKRoomConnect")
public func LKRoomConnect(room: UnsafeRawPointer, url: CFString, token: CFString, callback: @escaping @convention(c) (UnsafeRawPointer, CFString?) -> Void, callback_data: UnsafeRawPointer) {
let room = Unmanaged<Room>.fromOpaque(room).takeUnretainedValue()
room.connect(url as String, token as String).then { _ in
callback(callback_data, UnsafeRawPointer(nil) as! CFString?)
}.catch { error in
callback(callback_data, error.localizedDescription as CFString)
}
}
@_cdecl("LKRoomPublishVideoTrack")
public func LKRoomPublishVideoTrack(room: UnsafeRawPointer, track: UnsafeRawPointer, callback: @escaping @convention(c) (UnsafeRawPointer, CFString?) -> Void, callback_data: UnsafeRawPointer) {
let room = Unmanaged<Room>.fromOpaque(room).takeUnretainedValue()
let track = Unmanaged<LocalVideoTrack>.fromOpaque(track).takeUnretainedValue()
room.localParticipant?.publishVideoTrack(track: track).then { _ in
callback(callback_data, UnsafeRawPointer(nil) as! CFString?)
}.catch { error in
callback(callback_data, error.localizedDescription as CFString)
}
}
@_cdecl("LKCreateScreenShareTrackForWindow")
public func LKCreateScreenShareTrackForWindow(windowId: uint32) -> UnsafeMutableRawPointer {
let track = LocalVideoTrack.createMacOSScreenShareTrack(source: .window(id: windowId))
return Unmanaged.passRetained(track).toOpaque()
}
@_cdecl("LKVideoRendererCreate")
public func LKVideoRendererCreate(data: UnsafeRawPointer, onFrame: @escaping @convention(c) (UnsafeRawPointer, CVPixelBuffer) -> Void, onDrop: @escaping @convention(c) (UnsafeRawPointer) -> Void) -> UnsafeMutableRawPointer {
Unmanaged.passRetained(LKVideoRenderer(data: data, onFrame: onFrame, onDrop: onDrop)).toOpaque()
}
@_cdecl("LKVideoTrackAddRenderer")
public func LKVideoTrackAddRenderer(track: UnsafeRawPointer, renderer: UnsafeRawPointer) {
let track = Unmanaged<Track>.fromOpaque(track).takeUnretainedValue() as! VideoTrack
let renderer = Unmanaged<LKVideoRenderer>.fromOpaque(renderer).takeRetainedValue()
track.add(videoRenderer: renderer)
}