mirror of
https://github.com/moonlight-stream/moonlight-android.git
synced 2025-07-19 19:13:03 +00:00
328 lines
11 KiB
Java
328 lines
11 KiB
Java
package com.limelight.nvstream;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.util.concurrent.Semaphore;
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import javax.crypto.KeyGenerator;
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import javax.crypto.SecretKey;
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import org.xmlpull.v1.XmlPullParserException;
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import com.limelight.LimeLog;
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import com.limelight.nvstream.av.audio.AudioRenderer;
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import com.limelight.nvstream.av.video.VideoDecoderRenderer;
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import com.limelight.nvstream.http.GfeHttpResponseException;
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import com.limelight.nvstream.http.LimelightCryptoProvider;
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import com.limelight.nvstream.http.NvApp;
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import com.limelight.nvstream.http.NvHTTP;
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import com.limelight.nvstream.http.PairingManager;
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import com.limelight.nvstream.input.MouseButtonPacket;
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import com.limelight.nvstream.jni.MoonBridge;
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public class NvConnection {
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// Context parameters
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private String host;
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private LimelightCryptoProvider cryptoProvider;
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private String uniqueId;
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private ConnectionContext context;
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private static Semaphore connectionAllowed = new Semaphore(1);
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public NvConnection(String host, String uniqueId, StreamConfiguration config, LimelightCryptoProvider cryptoProvider)
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{
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this.host = host;
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this.cryptoProvider = cryptoProvider;
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this.uniqueId = uniqueId;
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this.context = new ConnectionContext();
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this.context.streamConfig = config;
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try {
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// This is unique per connection
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this.context.riKey = generateRiAesKey();
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} catch (NoSuchAlgorithmException e) {
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// Should never happen
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e.printStackTrace();
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}
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this.context.riKeyId = generateRiKeyId();
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}
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private static SecretKey generateRiAesKey() throws NoSuchAlgorithmException {
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KeyGenerator keyGen = KeyGenerator.getInstance("AES");
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// RI keys are 128 bits
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keyGen.init(128);
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return keyGen.generateKey();
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}
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private static int generateRiKeyId() {
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return new SecureRandom().nextInt();
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}
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public void stop() {
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// Interrupt any pending connection. This is thread-safe.
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MoonBridge.interruptConnection();
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// Moonlight-core is not thread-safe with respect to connection start and stop, so
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// we must not invoke that functionality in parallel.
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synchronized (MoonBridge.class) {
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MoonBridge.stopConnection();
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MoonBridge.cleanupBridge();
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}
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// Now a pending connection can be processed
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connectionAllowed.release();
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}
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private boolean startApp() throws XmlPullParserException, IOException
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{
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NvHTTP h = new NvHTTP(context.serverAddress, uniqueId, null, cryptoProvider);
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String serverInfo = h.getServerInfo();
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context.serverAppVersion = h.getServerVersion(serverInfo);
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if (context.serverAppVersion == null) {
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context.connListener.displayMessage("Server version malformed");
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return false;
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}
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context.serverGfeVersion = h.getGfeVersion(serverInfo);
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if (context.serverGfeVersion == null) {
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context.connListener.displayMessage("Server GFE version malformed");
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return false;
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}
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if (h.getPairState(serverInfo) != PairingManager.PairState.PAIRED) {
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context.connListener.displayMessage("Device not paired with computer");
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return false;
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}
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context.negotiatedHdr = context.streamConfig.getEnableHdr();
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if ((h.getServerCodecModeSupport(serverInfo) & 0x200) == 0 && context.negotiatedHdr) {
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context.connListener.displayTransientMessage("Your GPU does not support streaming HDR. The stream will be SDR.");
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context.negotiatedHdr = false;
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}
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//
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// Decide on negotiated stream parameters now
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//
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// Check for a supported stream resolution
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if (context.streamConfig.getHeight() >= 2160 && !h.supports4K(serverInfo)) {
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// Client wants 4K but the server can't do it
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context.connListener.displayTransientMessage("Your PC does not have a supported GPU or GFE version for 4K streaming. The stream will be 1080p.");
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// Lower resolution to 1080p
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context.negotiatedWidth = 1920;
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context.negotiatedHeight = 1080;
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context.negotiatedFps = context.streamConfig.getRefreshRate();
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}
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else if (context.streamConfig.getHeight() >= 2160 && context.streamConfig.getRefreshRate() >= 60 && !h.supports4K60(serverInfo)) {
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// Client wants 4K 60 FPS but the server can't do it
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context.connListener.displayTransientMessage("Your GPU does not support 4K 60 FPS streaming. The stream will be 4K 30 FPS.");
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context.negotiatedWidth = context.streamConfig.getWidth();
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context.negotiatedHeight = context.streamConfig.getHeight();
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context.negotiatedFps = 30;
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}
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else {
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// Take what the client wanted
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context.negotiatedWidth = context.streamConfig.getWidth();
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context.negotiatedHeight = context.streamConfig.getHeight();
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context.negotiatedFps = context.streamConfig.getRefreshRate();
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}
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//
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// Video stream format will be decided during the RTSP handshake
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//
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NvApp app = context.streamConfig.getApp();
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// If the client did not provide an exact app ID, do a lookup with the applist
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if (!context.streamConfig.getApp().isInitialized()) {
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LimeLog.info("Using deprecated app lookup method - Please specify an app ID in your StreamConfiguration instead");
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app = h.getAppByName(context.streamConfig.getApp().getAppName());
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if (app == null) {
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context.connListener.displayMessage("The app " + context.streamConfig.getApp().getAppName() + " is not in GFE app list");
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return false;
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}
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}
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// If there's a game running, resume it
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if (h.getCurrentGame(serverInfo) != 0) {
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try {
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if (h.getCurrentGame(serverInfo) == app.getAppId()) {
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if (!h.resumeApp(context)) {
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context.connListener.displayMessage("Failed to resume existing session");
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return false;
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}
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} else {
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return quitAndLaunch(h, context);
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}
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} catch (GfeHttpResponseException e) {
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if (e.getErrorCode() == 470) {
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// This is the error you get when you try to resume a session that's not yours.
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// Because this is fairly common, we'll display a more detailed message.
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context.connListener.displayMessage("This session wasn't started by this device," +
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" so it cannot be resumed. End streaming on the original " +
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"device or the PC itself and try again. (Error code: "+e.getErrorCode()+")");
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return false;
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}
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else if (e.getErrorCode() == 525) {
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context.connListener.displayMessage("The application is minimized. Resume it on the PC manually or " +
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"quit the session and start streaming again.");
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return false;
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} else {
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throw e;
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}
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}
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LimeLog.info("Resumed existing game session");
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return true;
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}
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else {
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return launchNotRunningApp(h, context);
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}
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}
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protected boolean quitAndLaunch(NvHTTP h, ConnectionContext context) throws IOException,
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XmlPullParserException {
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try {
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if (!h.quitApp()) {
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context.connListener.displayMessage("Failed to quit previous session! You must quit it manually");
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return false;
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}
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} catch (GfeHttpResponseException e) {
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if (e.getErrorCode() == 599) {
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context.connListener.displayMessage("This session wasn't started by this device," +
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" so it cannot be quit. End streaming on the original " +
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"device or the PC itself. (Error code: "+e.getErrorCode()+")");
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return false;
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}
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else {
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throw e;
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}
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}
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return launchNotRunningApp(h, context);
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}
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private boolean launchNotRunningApp(NvHTTP h, ConnectionContext context)
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throws IOException, XmlPullParserException {
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// Launch the app since it's not running
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if (!h.launchApp(context, context.streamConfig.getApp().getAppId(), context.negotiatedHdr)) {
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context.connListener.displayMessage("Failed to launch application");
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return false;
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}
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LimeLog.info("Launched new game session");
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return true;
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}
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public void start(final AudioRenderer audioRenderer, final VideoDecoderRenderer videoDecoderRenderer, final NvConnectionListener connectionListener)
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{
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new Thread(new Runnable() {
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public void run() {
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context.connListener = connectionListener;
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context.videoCapabilities = videoDecoderRenderer.getCapabilities();
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String appName = context.streamConfig.getApp().getAppName();
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context.serverAddress = host;
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context.connListener.stageStarting(appName);
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try {
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startApp();
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context.connListener.stageComplete(appName);
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} catch (Exception e) {
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e.printStackTrace();
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context.connListener.displayMessage(e.getMessage());
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context.connListener.stageFailed(appName, 0);
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return;
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}
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ByteBuffer ib = ByteBuffer.allocate(16);
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ib.putInt(context.riKeyId);
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// Acquire the connection semaphore to ensure we only have one
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// connection going at once.
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try {
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connectionAllowed.acquire();
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} catch (InterruptedException e) {
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context.connListener.displayMessage(e.getMessage());
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context.connListener.stageFailed(appName, 0);
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return;
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}
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// Moonlight-core is not thread-safe with respect to connection start and stop, so
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// we must not invoke that functionality in parallel.
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synchronized (MoonBridge.class) {
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MoonBridge.setupBridge(videoDecoderRenderer, audioRenderer, connectionListener);
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int ret = MoonBridge.startConnection(context.serverAddress,
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context.serverAppVersion, context.serverGfeVersion,
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context.negotiatedWidth, context.negotiatedHeight,
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context.negotiatedFps, context.streamConfig.getBitrate(),
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context.streamConfig.getMaxPacketSize(),
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context.streamConfig.getRemote(), context.streamConfig.getAudioConfiguration(),
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context.streamConfig.getHevcSupported(),
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context.negotiatedHdr,
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context.streamConfig.getHevcBitratePercentageMultiplier(),
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context.streamConfig.getClientRefreshRateX100(),
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context.riKey.getEncoded(), ib.array(),
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context.videoCapabilities);
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if (ret != 0) {
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// LiStartConnection() failed, so the caller is not expected
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// to stop the connection themselves. We need to release their
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// semaphore count for them.
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connectionAllowed.release();
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}
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}
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}
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}).start();
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}
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public void sendMouseMove(final short deltaX, final short deltaY)
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{
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MoonBridge.sendMouseMove(deltaX, deltaY);
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}
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public void sendMouseButtonDown(final byte mouseButton)
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{
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MoonBridge.sendMouseButton(MouseButtonPacket.PRESS_EVENT, mouseButton);
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}
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public void sendMouseButtonUp(final byte mouseButton)
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{
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MoonBridge.sendMouseButton(MouseButtonPacket.RELEASE_EVENT, mouseButton);
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}
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public void sendControllerInput(final short controllerNumber,
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final short activeGamepadMask, final short buttonFlags,
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final byte leftTrigger, final byte rightTrigger,
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final short leftStickX, final short leftStickY,
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final short rightStickX, final short rightStickY)
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{
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MoonBridge.sendMultiControllerInput(controllerNumber, activeGamepadMask, buttonFlags, leftTrigger, rightTrigger, leftStickX, leftStickY, rightStickX, rightStickY);
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}
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public void sendControllerInput(final short buttonFlags,
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final byte leftTrigger, final byte rightTrigger,
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final short leftStickX, final short leftStickY,
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final short rightStickX, final short rightStickY)
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{
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MoonBridge.sendControllerInput(buttonFlags, leftTrigger, rightTrigger, leftStickX, leftStickY, rightStickX, rightStickY);
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}
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public void sendKeyboardInput(final short keyMap, final byte keyDirection, final byte modifier) {
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MoonBridge.sendKeyboardInput(keyMap, keyDirection, modifier);
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}
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public void sendMouseScroll(final byte scrollClicks) {
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MoonBridge.sendMouseScroll(scrollClicks);
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}
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}
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