NVENC support

Overlord-Client/cmd/agent/capture/h264_direct_windows.go

@@ -0,0 +1,28 @@
+//go:build windows
+
+package capture
+
+import (
+	"time"
+
+	"overlord-client/cmd/agent/webrtcpub"
+	"overlord-client/cmd/agent/wire"
+)
+
+func tryBuildDirectH264Frame(display int) (wire.Frame, time.Duration, time.Duration, bool, error) {
+	if blockCodec() != "h264" || !useDesktopDuplication() {
+		return wire.Frame{}, 0, 0, false, nil
+	}
+	forceKeyframe := webrtcpub.ConsumeKeyframeRequest()
+	data, _, _, captureDur, encodeDur, used, err := captureDisplayDXGIH264(display, forceKeyframe)
+	if !used || err != nil {
+		return wire.Frame{}, captureDur, encodeDur, used, err
+	}
+	if len(data) == 0 {
+		return wire.Frame{}, captureDur, encodeDur, true, nil
+	}
+	now := time.Now()
+	lastKeyframe.Store(now.UnixNano())
+	statFullFrames.Add(1)
+	return wire.Frame{Type: "frame", Header: wire.FrameHeader{Monitor: display, FPS: 0, Format: "h264"}, Data: data}, captureDur, encodeDur, true, nil
+}