Talon
8c90e250f0
Implement system/desktop audio sharing on the Apple clients, feeding the existing SCREEN_AUDIO Opus -> AEAD -> UDP path via vc_stream_feed_pcm. No C++/protocol/codec changes -- the core was already ready (the Windows-only loopback is #ifdef VOICECAT_HAS_LOOPBACK; off Windows the stream just waits for fed PCM). Audio only; video is dropped. macOS (in-process): - ScreenAudioCapture.swift drives an audio-only SCStream (excludesCurrentProcessAudio), converts Float32 -> int16 in the channel's mono/stereo mode, and calls feedPcm. Capture starts on the self .streamStarted event (effective config known then). Wired into MainWindowController.screenAudioClicked(). iOS (forward-to-host, single session): - VoiceCatBroadcast: a ReplayKit Broadcast Upload Extension consumes .audioApp only, resamples to 48kHz int16 stereo (AVAudioConverter), and writes a shared App Group SPSC ring (BroadcastAudioRing.swift). It does not link libvoicecat. - Host BroadcastAudioPump drains the ring (reacting to the extension's Darwin notifications) and feeds the SCREEN_AUDIO stream it owns, downmixing to mono when the channel is mono. Screen audio appears as a second stream of the same user; no credentials persisted. UI is RPSystemBroadcastPicker View in VoiceControlsView. Removes the speculative BroadcastCredentials. Docs: voice.md s9, CLAUDE.md status, PROGRESS.md.
93 lines
3.1 KiB
Swift
93 lines
3.1 KiB
Swift
import Foundation
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import Security
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final class ServerListStore {
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static let shared = ServerListStore()
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private let groupId = "group.cat.voice.VoiceCat"
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private let keychainService = "cat.voice.VoiceCatiOS"
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// MARK: - App Group Container
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var appGroupContainer: URL {
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guard let url = FileManager.default.containerURL(
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forSecurityApplicationGroupIdentifier: groupId)
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else {
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// Fall back to app-only support dir if App Groups are unavailable (e.g. simulator
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// without entitlements). TOFU pins won't be shared with the broadcast extension,
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// but connect + auth still work.
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return FileManager.default.urls(for: .applicationSupportDirectory,
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in: .userDomainMask).first!
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}
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return url
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}
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private var voicecatDir: URL {
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let dir = appGroupContainer.appendingPathComponent("voicecat", isDirectory: true)
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try? FileManager.default.createDirectory(at: dir,
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withIntermediateDirectories: true)
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return dir
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}
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var tofuStorePath: String { voicecatDir.appendingPathComponent("tofu_pins.txt").path }
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private var serversURL: URL { voicecatDir.appendingPathComponent("servers.json") }
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// MARK: - Server list persistence
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func load() -> [SavedServer] {
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guard let data = try? Data(contentsOf: serversURL),
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let list = try? JSONDecoder().decode([SavedServer].self, from: data)
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else { return [] }
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return list
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}
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func save(_ servers: [SavedServer]) {
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guard let data = try? JSONEncoder().encode(servers) else { return }
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try? data.write(to: serversURL, options: .atomic)
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}
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// MARK: - Keychain
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func savePassword(_ password: String, tag: String) {
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let data = Data(password.utf8)
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let query: [CFString: Any] = [
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kSecClass: kSecClassGenericPassword,
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kSecAttrService: keychainService,
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kSecAttrAccount: tag,
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kSecAttrAccessGroup: groupId,
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]
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SecItemDelete(query as CFDictionary)
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var add = query
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add[kSecValueData] = data
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SecItemAdd(add as CFDictionary, nil)
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}
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func loadPassword(tag: String) -> String? {
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let query: [CFString: Any] = [
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kSecClass: kSecClassGenericPassword,
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kSecAttrService: keychainService,
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kSecAttrAccount: tag,
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kSecAttrAccessGroup: groupId,
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kSecReturnData: true,
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kSecMatchLimit: kSecMatchLimitOne,
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]
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var result: AnyObject?
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guard SecItemCopyMatching(query as CFDictionary, &result) == errSecSuccess,
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let data = result as? Data
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else { return nil }
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return String(data: data, encoding: .utf8)
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}
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func deletePassword(tag: String) {
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let query: [CFString: Any] = [
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kSecClass: kSecClassGenericPassword,
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kSecAttrService: keychainService,
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kSecAttrAccount: tag,
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kSecAttrAccessGroup: groupId,
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]
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SecItemDelete(query as CFDictionary)
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}
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}
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