feat: 录制完成后弹出保存对话框，支持用户改名
- 添加 showSaveDialog 方法，使用 NSSavePanel - 默认文件名为 Recording_时间戳.mp4 - 用户可修改文件名或选择保存位置 - 点击取消（X）时删除临时文件 - 保存成功后调用 onRecordingSaved 回调
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@ -305,16 +305,8 @@ final class PlayerRecorder: NSObject {
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vFrames, totalAudioFrames)
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if w.status == .completed, let tempURL = self.tempURL {
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// 边录边写完成，仅做改名
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let finalFilename = self.generateFinalFilename()
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let finalURL = self.saveDirectory.appendingPathComponent(finalFilename)
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do {
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try FileManager.default.moveItem(at: tempURL, to: finalURL)
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NSLog("[Recorder] ✓ Saved: %@", finalURL.path)
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self.onRecordingSaved?(finalURL)
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} catch {
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self.onError?("Save failed: \(error.localizedDescription)")
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}
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// 弹出保存对话框，用户可改名
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self.showSaveDialog(tempURL: tempURL)
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} else {
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self.onError?("Recording failed: \(w.error?.localizedDescription ?? "unknown (status=\(w.status.rawValue))")")
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if let url = self.tempURL {
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@ -330,69 +322,71 @@ final class PlayerRecorder: NSObject {
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// MARK: - 音频 Tap 设置
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private func setupAudioTap(playerItem: AVPlayerItem, audioWriterInput: AVAssetWriterInput) {
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let asset = playerItem.asset
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// 使用 playerItem.tracks（动态加载）而不是 asset.loadTracks
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// HLS 流的 tracks 需要等待加载完成后才可用
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Task {
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do {
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let audioTracks = try await asset.loadTracks(withMediaType: .audio)
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guard let audioTrack = audioTracks.first else {
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NSLog("[Recorder] ❌ No audio track for tap")
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return
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}
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guard self.isRunning else {
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NSLog("[Recorder] ❌ isRunning=false, aborting audio tap setup")
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// 等待 tracks 加载
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var attempts = 0
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while attempts < 50 { // 最多等待 5 秒
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guard self.isRunning else { return }
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let tracks = try await playerItem.asset.loadTracks(withMediaType: .audio)
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if let audioTrack = tracks.first {
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NSLog("[Recorder] ✓ Audio track found: %d, setting up tap...", audioTrack.trackID)
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// 创建音频捕获上下文
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let context = AudioCaptureContext()
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context.writerInput = audioWriterInput
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context.isRunning = true
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self.audioContext = context
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// 全局引用，供 C 回调访问
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gAudioContext = context
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// 创建 MTAudioProcessingTap 回调结构体
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var callbacks = MTAudioProcessingTapCallbacks(
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version: kMTAudioProcessingTapCallbacksVersion_0,
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clientInfo: nil,
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init: tapInitCallback,
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finalize: tapFinalizeCallback,
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prepare: tapPrepareCallback,
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unprepare: tapUnprepareCallback,
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process: tapProcessCallback
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)
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var tap: MTAudioProcessingTap?
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let status = MTAudioProcessingTapCreate(
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kCFAllocatorDefault,
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&callbacks,
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kMTAudioProcessingTapCreationFlag_PostEffects,
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&tap
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)
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guard status == noErr, let audioTap = tap else {
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NSLog("[Recorder] ❌ MTAudioProcessingTapCreate failed: %d", status)
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gAudioContext = nil
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return
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}
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self.audioTap = audioTap
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// 创建 audioMix 并挂上 tap
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let params = AVMutableAudioMixInputParameters(track: audioTrack)
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params.audioTapProcessor = audioTap
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let audioMix = AVMutableAudioMix()
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audioMix.inputParameters = [params]
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playerItem.audioMix = audioMix
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NSLog("[Recorder] ✓ Audio tap installed on playerItem")
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return
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}
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NSLog("[Recorder] Audio track found: %d, setting up tap...", audioTrack.trackID)
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// 创建音频捕获上下文
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let context = AudioCaptureContext()
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context.writerInput = audioWriterInput
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context.isRunning = true
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self.audioContext = context
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// 全局引用，供 C 回调访问
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gAudioContext = context
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// 创建 MTAudioProcessingTap 回调结构体
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var callbacks = MTAudioProcessingTapCallbacks(
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version: kMTAudioProcessingTapCallbacksVersion_0,
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clientInfo: nil,
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init: tapInitCallback,
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finalize: tapFinalizeCallback,
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prepare: tapPrepareCallback,
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unprepare: tapUnprepareCallback,
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process: tapProcessCallback
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)
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var tap: MTAudioProcessingTap?
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let status = MTAudioProcessingTapCreate(
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kCFAllocatorDefault,
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&callbacks,
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kMTAudioProcessingTapCreationFlag_PostEffects,
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&tap
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)
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guard status == noErr, let audioTap = tap else {
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NSLog("[Recorder] ❌ MTAudioProcessingTapCreate failed: %d", status)
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gAudioContext = nil
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return
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}
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self.audioTap = audioTap
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// 创建 audioMix 并挂上 tap
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let params = AVMutableAudioMixInputParameters(track: audioTrack)
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params.audioTapProcessor = audioTap
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let audioMix = AVMutableAudioMix()
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audioMix.inputParameters = [params]
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playerItem.audioMix = audioMix
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NSLog("[Recorder] ✓ Audio tap installed on playerItem")
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} catch {
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NSLog("[Recorder] Audio tap setup error: %@", error.localizedDescription)
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attempts += 1
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try await Task.sleep(nanoseconds: 100_000_000) // 0.1秒
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}
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NSLog("[Recorder] ❌ Timeout waiting for audio track")
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}
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}
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@ -494,6 +488,43 @@ final class PlayerRecorder: NSObject {
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formatter.dateFormat = "yyyy-MM-dd_HH-mm-ss"
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return "Recording_\(formatter.string(from: Date())).mp4"
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}
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// MARK: - 保存对话框
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private func showSaveDialog(tempURL: URL) {
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let panel = NSSavePanel()
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panel.nameFieldStringValue = generateFinalFilename()
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panel.allowedContentTypes = [.mpeg4Movie]
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panel.directoryURL = saveDirectory
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panel.title = "保存录制文件"
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panel.prompt = "保存"
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panel.begin { [weak self] response in
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Task { @MainActor in
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guard let self = self else { return }
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if response == .OK, let finalURL = panel.url {
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do {
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// 如果目标文件已存在，先删除
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if FileManager.default.fileExists(atPath: finalURL.path) {
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try FileManager.default.removeItem(at: finalURL)
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}
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// 移动临时文件到最终位置
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try FileManager.default.moveItem(at: tempURL, to: finalURL)
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NSLog("[Recorder] ✓ Saved: %@", finalURL.path)
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self.onRecordingSaved?(finalURL)
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} catch {
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self.onError?("Save failed: \(error.localizedDescription)")
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try? FileManager.default.removeItem(at: tempURL)
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}
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} else {
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// 用户取消，删除临时文件
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NSLog("[Recorder] User cancelled save, deleting temp file")
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try? FileManager.default.removeItem(at: tempURL)
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}
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}
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}
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}
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}
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#endif
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