feat(audio): per-stream mix controls in Windows client + vc_get_remote_stream getter

PerUserTuningDialog previously broadcast one gain/mute/NR set to *all* of a
user's streams, even though the core mixer (AudioEngine::RemoteStream) and
the C ABI (vc_set_remote_stream) were already per-stream. The UI had no
per-mix controls anywhere.

Reworks the dialog to enumerate ListUserStreams on open and render one row
per stream (kind + label + Gain + Mute + NR), each wiring only to its own
stream_id. Adds a read-back ABI counterpart, vc_get_remote_stream, so the
dialog opens at the listener's actual current per-stream settings (defaults
1.0/unmuted/NR-off) rather than always 100%. Additive ABI change only; no
existing symbols touched.

Tests: test_m3_multistream extended with getter round-trip assertions; new
C# smoke test exercises the full P/Invoke marshaling path with two clients.
Docs: voice.md §10 notes the getter. NR checkbox keeps its honest
'passthrough' label (NS DSP still unbuilt per §8).
This commit is contained in:
2026-06-18 02:06:44 +02:00
parent 1dfe3c95ed
commit d397731db9
15 changed files with 402 additions and 82 deletions

View File

@@ -3,27 +3,41 @@ using VoiceCat.Interop;
namespace VoiceCat.App.Forms;
/// <summary>
/// Per-remote-user gain, mute, and noise reduction settings.
/// Changes are applied in real-time as the user adjusts controls — no OK/Cancel round-trip
/// for gain and mute (the close button just dismisses). The settings live in the core and
/// are not persisted across sessions.
/// Per-remote-user, per-stream gain/mute/noise-reduction settings (docs/voice.md §1, §10).
/// One row is rendered for each stream the remote user is currently publishing. Each row
/// controls only that stream — so a listener can turn down one user's desktop audio while
/// keeping their mic, and independently noise-reduce a third user. All of these are
/// listener-local: no protocol traffic, no effect on other listeners.
///
/// Changes apply in real time as the user adjusts controls (no OK/Cancel round-trip); the
/// Close button just dismisses. State lives in the core and is not persisted across sessions.
/// The dialog is a modal snapshot of the streams active when it was opened — close and
/// reopen to see streams started/stopped in the meantime.
/// </summary>
public sealed class PerUserTuningDialog : Form
{
private readonly VoiceCatClient _client;
private readonly uint _userId;
private readonly TrackBar _trkGain;
private readonly Label _lblGainValue;
private readonly CheckBox _chkMute;
private readonly CheckBox _chkNr;
private readonly List<StreamRow> _rows = new();
public PerUserTuningDialog(VoiceCatClient client, uint userId, string nickname)
{
_client = client;
_userId = userId;
// ── Controls ──────────────────────────────────────────────────────────
AutoScaleMode = AutoScaleMode.Font;
FormBorderStyle = FormBorderStyle.FixedDialog;
MaximizeBox = false;
MinimizeBox = false;
StartPosition = FormStartPosition.CenterParent;
Text = $"User settings — {nickname}";
BuildControls(nickname);
}
private void BuildControls(string nickname)
{
var lblTitle = new Label
{
Text = $"Settings for {nickname}",
@@ -33,93 +47,169 @@ public sealed class PerUserTuningDialog : Form
TabIndex = 0,
};
var lblGainLabel = new Label
{
Text = "&Gain:",
AutoSize = true,
Location = new Point(12, 46),
TabIndex = 1,
};
var streams = _client.ListUserStreams(_userId);
_trkGain = new TrackBar
{
AccessibleName = "Gain",
AccessibleDescription = "Volume level for this user. 100 is normal (1.0×), 200 is double.",
Location = new Point(55, 38),
Size = new Size(220, 45),
Minimum = 0,
Maximum = 200,
Value = 100,
TickFrequency = 25,
SmallChange = 5,
LargeChange = 25,
TabIndex = 2,
};
const int rowH = 70; // label + trackbar + mute/nr
const int rowGap = 8;
int y = 44;
_lblGainValue = new Label
if (streams.Count == 0)
{
Text = "100% (1.0×)",
AutoSize = true,
Location = new Point(280, 46),
TabIndex = 3,
};
var lblEmpty = new Label
{
Text = "No active streams.",
AutoSize = true,
Location = new Point(12, y),
};
Controls.Add(lblTitle);
Controls.Add(lblEmpty);
ClientSize = new Size(420, 44 + lblEmpty.PreferredHeight + 16);
return;
}
_chkMute = new CheckBox
{
Text = "&Mute this user",
AutoSize = true,
Location = new Point(12, 92),
TabIndex = 4,
};
Controls.Add(lblTitle);
_chkNr = new CheckBox
int tabIndex = 1;
foreach (var s in streams)
{
Text = "&Noise reduction (planned — currently passthrough)",
AutoSize = true,
Location = new Point(12, 118),
TabIndex = 5,
};
var row = CreateRow(s, y, ref tabIndex);
_rows.Add(row);
Controls.AddRange(row.Controls);
y += rowH + rowGap;
}
var btnClose = new Button
{
Text = "&Close",
DialogResult = DialogResult.OK,
Location = new Point(296, 152),
Location = new Point(336, y + 4),
Size = new Size(75, 27),
TabIndex = 6,
TabIndex = tabIndex,
};
AcceptButton = btnClose;
Controls.Add(btnClose);
ClientSize = new Size(420, y + 40);
}
private StreamRow CreateRow(StreamSummary s, int y, ref int tabIndex)
{
// Read back the listener's current state for this stream (defaults if never set).
float gain0 = 1.0f; bool mute0 = false; bool nr0 = false;
var (r, state) = _client.GetRemoteStream(_userId, s.StreamId);
if (r == VcResult.Ok && state is not null)
{
gain0 = state.Gain;
mute0 = state.Muted;
nr0 = state.NoiseReduction;
}
var lblName = new Label
{
Text = StreamLabel(s),
AutoSize = true,
Font = new Font(Font, FontStyle.Bold),
Location = new Point(12, y),
TabIndex = tabIndex++,
};
// ── Wire events ───────────────────────────────────────────────────────
_trkGain.Scroll += (_, _) =>
var trkGain = new TrackBar
{
AccessibleName = $"Gain for {s.Label}",
AccessibleDescription = "Volume level for this stream. 100 is normal (1.0×), 200 is double.",
Location = new Point(12, y + 20),
Size = new Size(260, 45),
Minimum = 0,
Maximum = 200,
Value = ClampToTrack(gain0),
TickFrequency = 25,
SmallChange = 5,
LargeChange = 25,
TabIndex = tabIndex++,
};
var lblGainValue = new Label
{
AutoSize = true,
Location = new Point(280, y + 28),
TabIndex = tabIndex++,
};
void UpdateGainLabel() =>
lblGainValue.Text = $"{trkGain.Value}% ({trkGain.Value / 100f:F1}×)";
UpdateGainLabel();
var chkMute = new CheckBox
{
Text = "&Mute",
AutoSize = true,
Location = new Point(12, y + 48),
Checked = mute0,
TabIndex = tabIndex++,
};
var chkNr = new CheckBox
{
Text = "&Noise reduction (planned — currently passthrough)",
AutoSize = true,
Location = new Point(96, y + 48),
Checked = nr0,
TabIndex = tabIndex++,
};
var row = new StreamRow(s.StreamId, trkGain, chkMute, chkNr,
new Control[] { lblName, trkGain, lblGainValue, chkMute, chkNr });
trkGain.Scroll += (_, _) =>
{
UpdateGainLabel();
row.Apply(_client, _userId);
};
chkMute.CheckedChanged += (_, _) => row.Apply(_client, _userId);
chkNr.CheckedChanged += (_, _) => row.Apply(_client, _userId);
return row;
}
private static string StreamLabel(StreamSummary s)
{
var kind = s.Kind switch
{
VcStreamKind.Mic => "Mic",
VcStreamKind.ScreenAudio => "Screen audio",
VcStreamKind.AuxDevice => "Aux device",
_ => "Stream",
};
return string.IsNullOrWhiteSpace(s.Label) ? kind : $"{kind} — {s.Label}";
}
private static int ClampToTrack(float gain)
{
int v = (int)Math.Round(gain * 100f);
return Math.Max(0, Math.Min(200, v));
}
private sealed class StreamRow
{
private readonly uint _streamId;
private readonly TrackBar _trkGain;
private readonly CheckBox _chkMute;
private readonly CheckBox _chkNr;
public Control[] Controls { get; }
public StreamRow(uint streamId, TrackBar trkGain, CheckBox chkMute, CheckBox chkNr, Control[] controls)
{
_streamId = streamId;
_trkGain = trkGain;
_chkMute = chkMute;
_chkNr = chkNr;
Controls = controls;
}
public void Apply(VoiceCatClient client, uint userId)
{
float gain = _trkGain.Value / 100f;
_lblGainValue.Text = $"{_trkGain.Value}% ({gain:F1}×)";
ApplySettings();
};
_chkMute.CheckedChanged += (_, _) => ApplySettings();
_chkNr.CheckedChanged += (_, _) => ApplySettings();
// ── Form ──────────────────────────────────────────────────────────────
AcceptButton = btnClose;
AutoScaleMode = AutoScaleMode.Font;
ClientSize = new Size(384, 192);
Controls.AddRange([lblTitle, lblGainLabel, _trkGain, _lblGainValue,
_chkMute, _chkNr, btnClose]);
FormBorderStyle = FormBorderStyle.FixedDialog;
MaximizeBox = false;
MinimizeBox = false;
StartPosition = FormStartPosition.CenterParent;
Text = $"User settings — {nickname}";
}
private void ApplySettings()
{
float gain = _trkGain.Value / 100f;
bool muted = _chkMute.Checked;
bool nr = _chkNr.Checked;
// Apply to all of this user's streams
var streams = _client.ListUserStreams(_userId);
foreach (var s in streams)
_client.SetRemoteStream(_userId, s.StreamId, gain, muted, nr);
client.SetRemoteStream(userId, _streamId, gain, _chkMute.Checked, _chkNr.Checked);
}
}
}