gramps
e1006a04ab
MainViewModel.Streaming.cs (787 lines) takes the full go-live/record flow (StartSession/BeginRecordOnly/BeginGoLive/PrepareAndStartLiveAsync/StopStream, record-file naming + rename-on-stop), health pipeline (FramePump.Handle + poll, report-by-exception banner), session timer, REC/ON-AIR start/end UI, the resolution quality dropdown over the 1920x1080 master, live window visual tokens (UpdateLiveVisuals), record-folder commands, broadcast pull-out (CurrentBroadcastId/BroadcastForm) and the stream-state setters (StreamStatus/StreamVisibility) + their fields. Core drops 1890 -> 1119 lines. Cross-partial references (IsConnected, IsEditMode, BrandFlash*, _audioMixer, ctor wiring) are safe on one partial class. Zero behavior change; build 0 warnings; 246 pass, only the 2 known pre-existing failures (audio-mix gain + round-clip grab). Docs: index.md Streaming row added + core row trimmed in the same commit.
790 lines
30 KiB
C#
790 lines
30 KiB
C#
using System.Collections.ObjectModel;
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using System.IO;
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using System.Windows;
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using System.Windows.Input;
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using System.Windows.Threading;
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using Microsoft.Win32;
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using ytLive.Helpers;
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using ytLive.Models;
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using ytLive.Services;
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using ytLive.Services.Encoder;
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namespace ytLive.ViewModels;
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public partial class MainViewModel : ViewModelBase
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{
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private readonly DispatcherTimer _liveTimer;
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private readonly DispatcherTimer _healthPollTimer;
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private StreamStatus _streamStatus = StreamStatus.Offline;
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private StreamHealth _currentHealth = new();
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private string _streamTitle = string.Empty;
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private string _streamDescription = string.Empty;
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private string _streamVisibility = "Private";
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private string? _currentBroadcastId;
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private string? _reusableStreamUrl;
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private ReusableStream? _reusableStream;
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private string? _healthIssueBanner;
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private string _healthIssueBackground = "Transparent";
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private string _windowTitle = "LlamaCasty";
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private string _topBarBackground = "#16213e";
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private string _previewGlowBrush = "Transparent";
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private Thickness _previewGlowThickness = new(0);
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private string _liveElapsedText = "00:00:00";
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private double _recDotPulse = 1.0;
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private TimeSpan _liveElapsed;
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// ─── Recording (TASK 18): independent REC / ON-AIR pills. The pills are
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// ─── intent; IsRecording / IsLive are reality. ON-AIR needs a sign-in.
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private bool _recordPillOn;
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private bool _onAirPillOn;
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private bool _isRecording;
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private string? _recordFolder;
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/// <summary>Resolved record folder — the configured choice, or Downloads (0th case).</summary>
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public string RecordFolderDisplay => _recordFolder ?? DefaultRecordFolder();
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private string? _activeRecordPath;
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private DateTime _recordStartTime;
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private TimeSpan _recordLength;
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private readonly FramePump _framePump;
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public StreamStatus StreamStatus
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{
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get => _streamStatus;
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set
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{
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if (SetProperty(ref _streamStatus, value))
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{
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OnPropertyChanged(nameof(IsOffline));
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OnPropertyChanged(nameof(IsLive));
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OnPropertyChanged(nameof(IsEditMode));
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OnPropertyChanged(nameof(RecDotBrush));
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OnPropertyChanged(nameof(RecTextBrush));
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OnPropertyChanged(nameof(RecDotOpacity));
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OnPropertyChanged(nameof(OnAirBrush));
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OnPropertyChanged(nameof(IsLivePrivate));
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OnPropertyChanged(nameof(ShowPrimaryStartButton));
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OnPropertyChanged(nameof(ShowLogInButton));
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OnPropertyChanged(nameof(ShowEndStreamButton));
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OnPropertyChanged(nameof(EndButtonText));
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OnPropertyChanged(nameof(AccountStatusLightToolTip));
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OnPropertyChanged(nameof(ShowChatInactiveMessage));
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OnPropertyChanged(nameof(ShowPreviewPlaceholder));
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UpdateLiveVisuals();
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}
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}
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}
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public bool IsOffline => StreamStatus == StreamStatus.Offline;
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public bool IsLive => StreamStatus == StreamStatus.Streaming;
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public bool IsLivePrivate => IsLive && string.Equals(StreamVisibility, "Private", StringComparison.OrdinalIgnoreCase);
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public string RecDotBrush => !IsRecording ? "#555555" : "#e94560";
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public string RecTextBrush => (IsLive || IsRecording) ? "#ffffff" : "#888888";
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public double RecDotOpacity => IsRecording ? _recDotPulse : 0.55;
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public string OnAirBrush => !IsLive ? "#555555" : IsLivePrivate ? "#22c55e" : "#e94560";
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// ─── REC / ON-AIR pills (TASK 18) ───
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public bool RecordPillOn
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{
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get => _recordPillOn;
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set
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{
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if (!SetProperty(ref _recordPillOn, value)) return;
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OnPropertyChanged(nameof(ShowPrimaryStartButton));
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OnPropertyChanged(nameof(CanStartSession));
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}
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}
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public bool OnAirPillOn
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{
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get => _onAirPillOn;
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set
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{
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if (value && !CanToggleOnAir) return; // needs a sign-in
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if (!SetProperty(ref _onAirPillOn, value)) return;
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OnPropertyChanged(nameof(ShowPrimaryStartButton));
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OnPropertyChanged(nameof(CanStartSession));
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}
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}
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/// <summary>The ON-AIR pill (and thus live streaming) needs a YouTube sign-in.</summary>
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public bool CanToggleOnAir => IsConnected;
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/// <summary>Whether the session is actively recording — the REC status light
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/// turns green only when this is true (the pill is intent, this is reality).</summary>
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public bool IsRecording
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{
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get => _isRecording;
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private set
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{
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if (!SetProperty(ref _isRecording, value)) return;
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OnPropertyChanged(nameof(RecDotBrush));
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OnPropertyChanged(nameof(RecTextBrush));
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OnPropertyChanged(nameof(RecDotOpacity));
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OnPropertyChanged(nameof(IsEditMode));
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OnPropertyChanged(nameof(ShowEndStreamButton));
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OnPropertyChanged(nameof(ShowPrimaryStartButton));
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OnPropertyChanged(nameof(EndButtonText));
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UpdateSessionTimer();
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}
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}
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/// <summary>The primary button shows when there's something to start, but never
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/// while a session is running — once recording/live the ONLY control is the End
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/// button.</summary>
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public bool ShowPrimaryStartButton =>
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IsOffline && !IsRecording && !IsLive
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&& (IsConnected || (RecordPillOn && !OnAirPillOn));
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/// <summary>Either output selected makes the button actionable.</summary>
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public bool CanStartSession => RecordPillOn || OnAirPillOn;
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/// <summary>The End button shows while recording OR live.</summary>
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public bool ShowEndStreamButton => IsLive || IsRecording;
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/// <summary>The one button whose label changes: while recording it reads
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/// "Stop Recording", while live "End Stream".</summary>
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public string EndButtonText => IsRecording && !IsLive ? "Stop Recording" : "End Stream";
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public bool ShowLogInButton => !IsConnected && IsOffline && !IsRecording;
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public StreamHealth CurrentHealth
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{
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get => _currentHealth;
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set => SetProperty(ref _currentHealth, value);
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}
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/// <summary>Report-by-exception YouTube health (TASK 5 item 3): non-null only
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/// while a warning/error configuration issue exists — the banner's text.
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/// good/ok/noData keep it null so nothing renders.</summary>
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public string? HealthIssueBanner
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{
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get => _healthIssueBanner;
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private set => SetProperty(ref _healthIssueBanner, value);
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}
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/// <summary>Banner background: app red (#8f1f1f) for an error issue, amber
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/// (#b8860b) for a warning. Transparent when no banner is shown.</summary>
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public string HealthIssueBackground
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{
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get => _healthIssueBackground;
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private set => SetProperty(ref _healthIssueBackground, value);
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}
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public string StreamTitle
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{
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get => _streamTitle;
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set => SetProperty(ref _streamTitle, value);
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}
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public string StreamDescription
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{
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get => _streamDescription;
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set => SetProperty(ref _streamDescription, value);
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}
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public string StreamVisibility
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{
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get => _streamVisibility;
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set
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{
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if (SetProperty(ref _streamVisibility, value))
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{
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OnPropertyChanged(nameof(RecDotBrush));
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OnPropertyChanged(nameof(RecTextBrush));
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OnPropertyChanged(nameof(OnAirBrush));
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OnPropertyChanged(nameof(IsLivePrivate));
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}
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}
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}
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public string WindowTitle
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{
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get => _windowTitle;
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set => SetProperty(ref _windowTitle, value);
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}
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public string TopBarBackground
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{
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get => _topBarBackground;
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set => SetProperty(ref _topBarBackground, value);
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}
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public string PreviewGlowBrush
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{
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get => _previewGlowBrush;
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set => SetProperty(ref _previewGlowBrush, value);
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}
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public Thickness PreviewGlowThickness
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{
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get => _previewGlowThickness;
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set => SetProperty(ref _previewGlowThickness, value);
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}
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public string LiveElapsedText
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{
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get => _liveElapsedText;
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set => SetProperty(ref _liveElapsedText, value);
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}
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// ─── Broadcast metadata pull-out (the "Text" tab on the Live screen) ───
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/// <summary>The broadcast id of the current/last session; null until Go Live
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/// succeeds. Gates the pull-out's Update button (nothing remote to patch).</summary>
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public string? CurrentBroadcastId => _currentBroadcastId;
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public Services.LiveBroadcastFormViewModel BroadcastForm { get; }
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// ─── Resolution quality dropdown (bottom bar) ───
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// Tiers offered to the creator before going live. First = default. The
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// dropdown is disabled while live because YouTube stream resolution is
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// immutable after stream creation (see TASKS.md compliance notes).
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// The composition master frame. Every tier is an output rect + target
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// resolution over this frame (see ai.md "Resolution tiers"): 16:9 tiers
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// use the full frame; the vertical tier uses a centered 9:16 window and
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// the preview dims the cropped strips (semi-crop).
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private const double MasterFrameWidth = 1920;
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private const double MasterFrameHeight = 1080;
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public QualityOption[] QualityOptions { get; } =
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{
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new("1080p60", 60, 8.0, 1920, 1080),
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new("1080p30", 30, 8.0, 1920, 1080),
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new("720p60", 60, 6.0, 1280, 720),
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new("720p30", 30, 6.0, 1280, 720),
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new("Vertical 1080p60", 60, 8.0, 1080, 1920),
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};
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public string ResolutionHelp { get; } =
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"Pick the highest resolution your upload bandwidth can comfortably sustain. " +
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"Find your upload speed on your ISP plan or with a speed test (e.g. fast.com), " +
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"then choose a tier your upload comfortably exceeds. 1080p60 is the default.";
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private QualityOption _selectedQuality;
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public QualityOption SelectedQuality
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{
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get => _selectedQuality;
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set
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{
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if (SetProperty(ref _selectedQuality, value))
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ApplyStreamQuality(value);
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}
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}
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// Output frame of the selected tier over the 1920x1080 master. The strips
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// outside it are dimmed in the preview so the cropped area stays visible.
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public double OutputRectX { get; private set; }
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public double OutputRectY { get; private set; }
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public double OutputRectWidth { get; private set; }
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public double OutputRectHeight { get; private set; }
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public bool IsOutputCropped { get; private set; }
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public string ResolutionBadgeText { get; private set; } = string.Empty;
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public ObservableCollection<Rect> DimRects { get; } = new();
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private void ApplyStreamQuality(QualityOption quality)
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{
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var health = CurrentHealth;
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health.CurrentBitrate = quality.Bitrate;
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health.FPS = quality.Fps;
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OnPropertyChanged(nameof(CurrentHealth));
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var scale = Math.Min(MasterFrameWidth / quality.Width, MasterFrameHeight / quality.Height);
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var rectW = quality.Width * scale;
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var rectH = quality.Height * scale;
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var rectX = (MasterFrameWidth - rectW) / 2;
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var rectY = (MasterFrameHeight - rectH) / 2;
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OutputRectX = rectX;
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OutputRectY = rectY;
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OutputRectWidth = rectW;
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OutputRectHeight = rectH;
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DimRects.Clear();
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if (rectX > 0) DimRects.Add(new Rect(0, 0, rectX, MasterFrameHeight));
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if (rectX + rectW < MasterFrameWidth)
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DimRects.Add(new Rect(rectX + rectW, 0, MasterFrameWidth - rectX - rectW, MasterFrameHeight));
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if (rectY > 0) DimRects.Add(new Rect(0, 0, MasterFrameWidth, rectY));
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if (rectY + rectH < MasterFrameHeight)
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DimRects.Add(new Rect(0, rectY + rectH, MasterFrameWidth, MasterFrameHeight - rectY - rectH));
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IsOutputCropped = DimRects.Count > 0;
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ResolutionBadgeText = $"{quality.Label} · {quality.Width}×{quality.Height}";
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OnPropertyChanged(nameof(OutputRectX));
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OnPropertyChanged(nameof(OutputRectY));
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OnPropertyChanged(nameof(OutputRectWidth));
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OnPropertyChanged(nameof(OutputRectHeight));
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OnPropertyChanged(nameof(IsOutputCropped));
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OnPropertyChanged(nameof(ResolutionBadgeText));
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}
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public ICommand StartStreamCommand { get; }
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public ICommand EndStreamCommand { get; }
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public ICommand ChooseRecordFolderCommand { get; }
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public ICommand ResetRecordFolderCommand { get; }
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/// <summary>Entry point for the primary Start button (and the start/stop hotkey):
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/// routes to a record session or the YouTube go-live dialog by the pill state.</summary>
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private void StartSession()
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{
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if (IsLive || IsRecording) return;
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var streaming = OnAirPillOn;
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var recording = RecordPillOn;
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if (!streaming && !recording) return;
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if (!streaming)
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{
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BeginRecordOnly();
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return;
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}
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BeginGoLive(recording);
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}
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/// <summary>Record-only (REC pill on, ON-AIR off): no YouTube dialog — recording
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/// is local and works signed-out. Generates the auto-named file and starts the
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/// pipeline immediately.</summary>
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private async void BeginRecordOnly()
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{
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var path = StartRecordFile();
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if (path == null)
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{
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_notifications.Error("Couldn't record", "No record output path could be created.");
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return;
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}
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_recordStartTime = DateTime.Now;
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_liveElapsed = TimeSpan.Zero;
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_recordLength = TimeSpan.Zero;
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ResetHealth(StreamStatus.Offline);
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_audioMixer.StartLive(EncoderOptions.DefaultAudioPipeName);
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IsRecording = true;
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await _framePump.StartAsync();
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}
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private void BeginGoLive(bool alsoRecord)
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{
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var dialog = new GoLiveViewModel(() => SignInAsync(), _youtubeAuth.CurrentChannel)
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{
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StreamTitle = BroadcastForm.Title,
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StreamDescription = BroadcastForm.Description,
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};
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var window = new ytLive.GoLiveWindow(dialog) { Owner = System.Windows.Application.Current.MainWindow };
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if (window.ShowDialog() == true)
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{
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StreamTitle = dialog.StreamTitle;
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StreamDescription = dialog.StreamDescription;
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StreamVisibility = dialog.Visibility; // always "Private" (ship step 7)
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BroadcastForm.CaptureGoLive(dialog.StreamTitle, dialog.StreamDescription, DateTime.UtcNow);
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WindowTitle = string.IsNullOrWhiteSpace(dialog.StreamTitle)
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? "LlamaCasty"
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: $"{dialog.StreamTitle} — LlamaCasty";
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StreamStatus = StreamStatus.Streaming;
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ResetHealth(StreamStatus.Streaming);
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_audioMixer.StartLive(EncoderOptions.DefaultAudioPipeName);
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_liveElapsed = TimeSpan.Zero;
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_recordLength = TimeSpan.Zero;
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var recordStarted = false;
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if (alsoRecord)
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{
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if (StartRecordFile() == null)
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{
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_notifications.Error("Couldn't record",
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"No record output path could be created — streaming continues without recording.");
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}
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else
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{
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_recordStartTime = DateTime.Now;
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recordStarted = true;
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}
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}
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IsRecording = recordStarted;
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_ = PrepareAndStartLiveAsync();
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}
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}
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/// <summary>Creates the record file (auto-named <c>ty-…-0000.mp4</c> in the record
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/// folder) and returns its path, or null when the folder can't be prepared.</summary>
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private string? StartRecordFile()
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{
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try
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{
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var folder = _recordFolder ?? DefaultRecordFolder();
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Directory.CreateDirectory(folder);
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var name = RecordingFile.BuildStartName(DateTime.Now) + ".mp4";
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var path = Path.Combine(folder, name);
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_activeRecordPath = path;
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return path;
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}
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catch (Exception ex)
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{
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AppLog.Write(ex, "Recording: failed to prepare output path");
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return null;
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}
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}
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/// <summary>One-click go-live (TASK 5): ensure the reusable stream, create a
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/// broadcast bound to it, then start the frame pump. The pump reads the RTMP
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/// URL once at startup (FramePump.StartAsync), so the stream URL must be set
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/// before the pump starts — hence the ordering here. Failures surface as an
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/// error health state, never a crash.</summary>
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private async Task PrepareAndStartLiveAsync()
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{
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try
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{
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var stream = await _youtubeStream.GetOrCreateReusableStreamAsync();
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if (stream == null)
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{
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AppLog.Write("Reusable stream unavailable; check the OAuth session");
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_notifications.Error("Couldn't go live",
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"The reusable stream is unavailable — check the YouTube sign-in and try again.");
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StreamStatus = StreamStatus.Error;
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return;
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}
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_reusableStream = stream;
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_reusableStreamUrl = stream.RtmpUrl;
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_layoutStore.SaveReusableStream(stream);
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_currentBroadcastId = await _youtubeStream.CreateBroadcast(
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StreamTitle, StreamDescription, DateTime.UtcNow, stream.Id);
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if (_currentBroadcastId == null)
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{
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AppLog.Write("Broadcast creation failed; check the OAuth session");
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_notifications.Error("Couldn't go live", "YouTube rejected the broadcast — check the sign-in and try again.");
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StreamStatus = StreamStatus.Error;
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return;
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}
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AppLog.Write($"Broadcast created: {_currentBroadcastId}");
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OnPropertyChanged(nameof(CurrentBroadcastId));
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if (string.IsNullOrWhiteSpace(StreamTitle) && string.IsNullOrWhiteSpace(StreamDescription))
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{
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BroadcastForm.IsDrawerOpen = true;
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_notifications.Warning("Complete your broadcast details",
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"Your title and description are empty — fill them in from the Text panel on the right.");
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}
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// Start chat polling (TASK 9.4): fetch the liveChatId from the broadcast's
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// contentDetails, then start the poll loop. Chat is non-fatal — if it fails,
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// the stream continues without on-panel chat.
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try
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{
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var liveChatId = await _youtubeStream.GetBroadcastLiveChatIdAsync(_currentBroadcastId);
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if (liveChatId != null)
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{
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_youtubeChat.Start(liveChatId);
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AppLog.Write($"Chat polling started: {liveChatId}");
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}
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else
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{
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AppLog.Write("Could not retrieve liveChatId; chat polling disabled");
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}
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}
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catch (Exception chatEx)
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{
|
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AppLog.Write($"Chat start failed (non-fatal): {chatEx.Message}");
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
AppLog.Write($"Go-live preparation failed: {ex.Message}");
|
||
_notifications.Error("Couldn't go live", ex.Message);
|
||
StreamStatus = StreamStatus.Error;
|
||
return;
|
||
}
|
||
|
||
await _framePump.StartAsync(); // never throws; failures log + surface via Failed
|
||
|
||
// Health polling (TASK 5 item 3): poll immediately, then every 30s while
|
||
// live. Report-by-exception — a banner appears only on warning/error.
|
||
_healthPollTimer.Start();
|
||
_ = PollHealthAsync();
|
||
}
|
||
|
||
private void OnHealthPollTick(object? sender, EventArgs e) => _ = PollHealthAsync();
|
||
|
||
/// <summary>One liveStreams.list poll (TASK 5 item 3): updates the YouTube
|
||
/// health state + the report-by-exception banner. Never throws — a poll
|
||
/// failure logs and leaves the last state untouched.</summary>
|
||
private async Task PollHealthAsync()
|
||
{
|
||
if (_reusableStream == null || !IsLive) return;
|
||
try
|
||
{
|
||
var health = await _youtubeStream.GetStreamHealthAsync(_reusableStream.Id);
|
||
if (health == null)
|
||
{
|
||
AppLog.Write("Stream health poll failed; check the OAuth session");
|
||
return;
|
||
}
|
||
CurrentHealth.HealthStatus = health.HealthStatus;
|
||
CurrentHealth.HealthMessage = health.HealthStatus;
|
||
CurrentHealth.ConfigurationIssues.Clear();
|
||
CurrentHealth.ConfigurationIssues.AddRange(health.ConfigurationIssues);
|
||
OnPropertyChanged(nameof(CurrentHealth));
|
||
ApplyHealthIssue(health.ConfigurationIssues);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
AppLog.Write($"Stream health poll failed: {ex.Message}");
|
||
}
|
||
}
|
||
|
||
// Report-by-exception: good/ok/noData (or info-only issues) clear the banner;
|
||
// the first warning/error issue raises it, colored by the worst severity.
|
||
private void ApplyHealthIssue(List<StreamConfigurationIssue> issues)
|
||
{
|
||
var report = StreamHealthReporter.BannerFor(issues);
|
||
if (report.Text == null)
|
||
{
|
||
HealthIssueBanner = null;
|
||
HealthIssueBackground = "Transparent";
|
||
return;
|
||
}
|
||
|
||
HealthIssueBackground = report.IsError ? "#8f1f1f" : "#b8860b";
|
||
HealthIssueBanner = report.Text;
|
||
}
|
||
|
||
private async void StopStream()
|
||
{
|
||
var wasLive = IsLive;
|
||
var wasRecording = IsRecording;
|
||
|
||
StreamStatus = StreamStatus.Offline;
|
||
IsRecording = false;
|
||
WindowTitle = "LlamaCasty";
|
||
ResetHealth(StreamStatus.Offline);
|
||
// Stop chat polling first (TASK 9.4) — no more messages arriving while
|
||
// we're tearing down the stream.
|
||
_youtubeChat.Stop();
|
||
// Close the audio pipe FIRST so ffmpeg sees EOF on the audio input,
|
||
// then stop the pump (stdin EOF) — both inputs end and the encoder
|
||
// finalizes the output. Audio capture itself is always-on (preview
|
||
// monitoring); only the live/report pipe, the pump, and the session stop here.
|
||
_audioMixer.StopLive();
|
||
await _framePump.StopAsync();
|
||
_currentBroadcastId = null;
|
||
OnPropertyChanged(nameof(CurrentBroadcastId));
|
||
|
||
if (wasRecording) await FinalizeRecordingAsync();
|
||
|
||
// Explicit sign-out only (TASK 18): stopping the stream does NOT clear
|
||
// the session/token — the creator signs out deliberately via the
|
||
// Logout / Change Account commands.
|
||
AppLog.Write(wasLive ? "Stream ended" : "Recording ended");
|
||
}
|
||
|
||
/// <summary>On stop the auto-named <c>ty-…-0000.mp4</c> file is renamed to carry
|
||
/// the real recording length (<c>ty-…-hh2mm2.mp4</c>), with a numeric suffix on
|
||
/// name collisions. Runs only after the pump has fully closed the file.</summary>
|
||
private async Task FinalizeRecordingAsync()
|
||
{
|
||
var startPath = _activeRecordPath;
|
||
_activeRecordPath = null;
|
||
if (string.IsNullOrEmpty(startPath)) return;
|
||
try
|
||
{
|
||
while (_framePump.IsRunning) await Task.Delay(50);
|
||
|
||
if (!File.Exists(startPath))
|
||
{
|
||
AppLog.Write($"Recording: output not found for rename: {startPath}");
|
||
return;
|
||
}
|
||
_recordLength = _liveElapsed;
|
||
var autoStem = RecordingFile.BuildFinalName(_recordStartTime, _recordLength);
|
||
var dir = Path.GetDirectoryName(startPath)!;
|
||
|
||
// Manual rename modal: give the creator a chance to name the recording;
|
||
// null = keep the auto name (or the default recorded above).
|
||
string stem = autoStem;
|
||
var dialog = new RenameRecordingDialog(autoStem);
|
||
if (dialog.ShowDialog() == true && !string.IsNullOrEmpty(dialog.ResultFileName))
|
||
stem = dialog.ResultFileName;
|
||
|
||
var finalPath = UniquePath(Path.Combine(dir, stem + ".mp4"));
|
||
File.Move(startPath, finalPath);
|
||
AppLog.Write($"Recording saved: {finalPath}");
|
||
_notifications.Info("Recording saved",
|
||
Path.GetFileName(finalPath) + " — you can rename it in your videos folder at any time.");
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
AppLog.Write(ex, "Recording: rename-on-stop failed");
|
||
_notifications.Error("Recording saved",
|
||
$"The recording was written but couldn't be renamed: {Path.GetFileName(startPath)}");
|
||
}
|
||
}
|
||
|
||
private static string UniquePath(string path)
|
||
{
|
||
if (!File.Exists(path)) return path;
|
||
var dir = Path.GetDirectoryName(path)!;
|
||
var name = Path.GetFileNameWithoutExtension(path);
|
||
var ext = Path.GetExtension(path);
|
||
for (var i = 2; ; i++)
|
||
{
|
||
var candidate = Path.Combine(dir, $"{name}-{i}{ext}");
|
||
if (!File.Exists(candidate)) return candidate;
|
||
}
|
||
}
|
||
|
||
private void ChooseRecordFolder()
|
||
{
|
||
var dialog = new Microsoft.Win32.OpenFolderDialog
|
||
{
|
||
Title = "Choose a folder for local recordings",
|
||
InitialDirectory = _recordFolder ?? DefaultRecordFolder(),
|
||
};
|
||
if (dialog.ShowDialog() == true)
|
||
{
|
||
_recordFolder = dialog.FolderName;
|
||
_layoutStore.SaveRecordFolder(_recordFolder);
|
||
OnPropertyChanged(nameof(RecordFolderDisplay));
|
||
_notifications.Info("Record folder set", _recordFolder);
|
||
}
|
||
}
|
||
|
||
private void ResetRecordFolder()
|
||
{
|
||
_recordFolder = null;
|
||
_layoutStore.SaveRecordFolder(null);
|
||
OnPropertyChanged(nameof(RecordFolderDisplay));
|
||
_notifications.Info("Record folder reset", RecordFolderDisplay);
|
||
}
|
||
|
||
/// <summary>Falls back to the user's Downloads folder when no preference is set;
|
||
/// returns MyVideos if Downloads doesn't exist.</summary>
|
||
internal static string DefaultRecordFolder()
|
||
{
|
||
var downloads = Path.Combine(
|
||
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads");
|
||
return Directory.Exists(downloads)
|
||
? downloads
|
||
: Environment.GetFolderPath(Environment.SpecialFolder.MyVideos);
|
||
}
|
||
|
||
// Full encoder options for the current tier, or null when no RTMP URL is
|
||
// available — the pump then skips the encoder entirely (TASK 5 fills the seam).
|
||
private EncoderOptions? BuildEncoderOptions()
|
||
{
|
||
var url = _rtmpUrlProvider();
|
||
var quality = SelectedQuality;
|
||
return new EncoderOptions
|
||
{
|
||
RtmpUrl = url ?? string.Empty,
|
||
StreamEnabled = OnAirPillOn,
|
||
RecordEnabled = RecordPillOn,
|
||
RecordPath = _activeRecordPath,
|
||
Width = quality.Width,
|
||
Height = quality.Height,
|
||
Fps = quality.Fps,
|
||
BitrateKbps = (int)Math.Round(quality.Bitrate * 1000),
|
||
};
|
||
}
|
||
|
||
private void OnFramePumpFailed(object? sender, string message)
|
||
{
|
||
AppLog.Write($"Frame pump failed: {message}");
|
||
_notifications.Error("The stream pipeline stopped", message);
|
||
if (IsLive) StreamStatus = StreamStatus.Error;
|
||
}
|
||
|
||
// TASK 4 ship step 6: the encoder's parsed health (bitrate/FPS/dropped/
|
||
// duration) lands in the bottom bar. The stderr loop raises on a background
|
||
// thread — marshal to the UI thread like the audio level handlers.
|
||
private void OnFramePumpHealthUpdated(object? sender, StreamHealth health)
|
||
{
|
||
var dispatcher = System.Windows.Application.Current?.Dispatcher;
|
||
if (dispatcher != null && !dispatcher.CheckAccess())
|
||
dispatcher.BeginInvoke(() => ApplyHealth(health));
|
||
else
|
||
ApplyHealth(health);
|
||
}
|
||
|
||
private void ApplyHealth(StreamHealth health)
|
||
{
|
||
CurrentHealth.Status = health.Status;
|
||
CurrentHealth.CurrentBitrate = health.CurrentBitrate;
|
||
CurrentHealth.FPS = health.FPS;
|
||
CurrentHealth.DroppedFrames = health.DroppedFrames;
|
||
CurrentHealth.StreamDuration = health.StreamDuration;
|
||
CurrentHealth.LastError = health.LastError;
|
||
CurrentHealth.HealthMessage = health.HealthMessage;
|
||
OnPropertyChanged(nameof(CurrentHealth));
|
||
}
|
||
|
||
// Keeps the bottom-bar stats honest across sessions: dropped frames and the
|
||
// elapsed duration must not linger from a previous go-live (bitrate/FPS stay
|
||
// on the tier's targets — ApplyStreamQuality sets them on pick).
|
||
private void ResetHealth(StreamStatus status)
|
||
{
|
||
CurrentHealth.Status = status;
|
||
CurrentHealth.DroppedFrames = 0;
|
||
CurrentHealth.StreamDuration = TimeSpan.Zero;
|
||
CurrentHealth.LastError = null;
|
||
CurrentHealth.HealthStatus = null;
|
||
CurrentHealth.HealthMessage = null;
|
||
CurrentHealth.ConfigurationIssues.Clear();
|
||
HealthIssueBanner = null;
|
||
HealthIssueBackground = "Transparent";
|
||
OnPropertyChanged(nameof(CurrentHealth));
|
||
}
|
||
|
||
private void UpdateLiveVisuals()
|
||
{
|
||
var live = IsLive;
|
||
TopBarBackground = live ? "#e94560" : "#16213e";
|
||
PreviewGlowBrush = live ? "#e94560" : "Transparent";
|
||
PreviewGlowThickness = live ? new Thickness(3) : new Thickness(0);
|
||
|
||
if (live)
|
||
{
|
||
if (BrandFlashEnabled) StartBrandFlashTimer();
|
||
}
|
||
else
|
||
{
|
||
_healthPollTimer.Stop();
|
||
_brandFlashTimer.Stop();
|
||
_brandFlashOffTimer.Stop();
|
||
BrandFlashActive = false;
|
||
}
|
||
UpdateSessionTimer();
|
||
}
|
||
|
||
/// <summary>Runs the elapsed/rec-dot-pulse timer while a session is active —
|
||
/// live (Streaming) OR recording. Reset the elapsed when a new session starts.</summary>
|
||
private void UpdateSessionTimer()
|
||
{
|
||
var active = IsLive || IsRecording;
|
||
if (active)
|
||
{
|
||
_recDotPulse = 1.0;
|
||
_liveTimer.Start();
|
||
}
|
||
else
|
||
{
|
||
_liveTimer.Stop();
|
||
LiveElapsedText = "00:00:00";
|
||
_recDotPulse = 1.0;
|
||
}
|
||
OnPropertyChanged(nameof(RecDotOpacity));
|
||
OnPropertyChanged(nameof(LiveElapsedText));
|
||
}
|
||
|
||
private void OnLiveTimerTick(object? sender, EventArgs e)
|
||
{
|
||
_liveElapsed = _liveElapsed.Add(TimeSpan.FromSeconds(1));
|
||
LiveElapsedText = _liveElapsed.ToString(@"hh\:mm\:ss");
|
||
_recordLength = _liveElapsed;
|
||
_recDotPulse = _recDotPulse > 0.5 ? 0.35 : 1.0;
|
||
OnPropertyChanged(nameof(RecDotOpacity));
|
||
}
|
||
}
|