Reduce code duplication

app/build.gradle

@@ -11,8 +11,8 @@ android {
         minSdkVersion 16
         targetSdkVersion 23
 
-        versionName "3.1.10"
-        versionCode = 65
+        versionName "3.1.11"
+        versionCode = 66
     }
 
     productFlavors {

app/src/main/java/com/limelight/PcView.java

@@ -53,7 +53,7 @@ public class PcView extends Activity implements AdapterFragmentCallbacks {
     private RelativeLayout noPcFoundLayout;
     private PcGridAdapter pcGridAdapter;
     private ComputerManagerService.ComputerManagerBinder managerBinder;
-    private boolean freezeUpdates, runningPolling;
+    private boolean freezeUpdates, runningPolling, hasResumed;
     private final ServiceConnection serviceConnection = new ServiceConnection() {
         public void onServiceConnected(ComponentName className, IBinder binder) {
             final ComputerManagerService.ComputerManagerBinder localBinder =
@@ -215,6 +215,7 @@ public class PcView extends Activity implements AdapterFragmentCallbacks {
     protected void onResume() {
         super.onResume();
 
+        hasResumed = true;
         startComputerUpdates();
     }
 
@@ -222,6 +223,7 @@ public class PcView extends Activity implements AdapterFragmentCallbacks {
     protected void onPause() {
         super.onPause();
 
+        hasResumed = false;
         stopComputerUpdates(false);
     }
 
@@ -268,7 +270,11 @@ public class PcView extends Activity implements AdapterFragmentCallbacks {
 
     @Override
     public void onContextMenuClosed(Menu menu) {
-        startComputerUpdates();
+        // For some reason, this gets called again _after_ onPause() is called on this activity.
+        // We don't want to start computer updates again, so we need to keep track of whether we're paused.
+        if (hasResumed) {
+            startComputerUpdates();
+        }
     }
 
     private void doPair(final ComputerDetails computer) {

app/src/main/java/com/limelight/binding/input/TouchContext.java

@@ -3,6 +3,9 @@ package com.limelight.binding.input;
 import com.limelight.nvstream.NvConnection;
 import com.limelight.nvstream.input.MouseButtonPacket;
 
+import java.util.Timer;
+import java.util.TimerTask;
+
 public class TouchContext {
     private int lastTouchX = 0;
     private int lastTouchY = 0;
@@ -10,14 +13,20 @@ public class TouchContext {
     private int originalTouchY = 0;
     private long originalTouchTime = 0;
     private boolean cancelled;
+    private boolean confirmedMove;
+    private boolean confirmedDrag;
+    private Timer dragTimer;
+    private double distanceMoved;
 
     private final NvConnection conn;
     private final int actionIndex;
     private final double xFactor;
     private final double yFactor;
 
-    private static final int TAP_MOVEMENT_THRESHOLD = 10;
+    private static final int TAP_MOVEMENT_THRESHOLD = 20;
+    private static final int TAP_DISTANCE_THRESHOLD = 25;
     private static final int TAP_TIME_THRESHOLD = 250;
+    private static final int DRAG_TIME_THRESHOLD = 650;
 
     public TouchContext(NvConnection conn, int actionIndex, double xFactor, double yFactor)
     {
@@ -32,15 +41,19 @@ public class TouchContext {
         return actionIndex;
     }
 
+    private boolean isWithinTapBounds(int touchX, int touchY)
+    {
+        int xDelta = Math.abs(touchX - originalTouchX);
+        int yDelta = Math.abs(touchY - originalTouchY);
+        return xDelta <= TAP_MOVEMENT_THRESHOLD &&
+                yDelta <= TAP_MOVEMENT_THRESHOLD;
+    }
+
     private boolean isTap()
     {
-        int xDelta = Math.abs(lastTouchX - originalTouchX);
-        int yDelta = Math.abs(lastTouchY - originalTouchY);
         long timeDelta = System.currentTimeMillis() - originalTouchTime;
 
-        return xDelta <= TAP_MOVEMENT_THRESHOLD &&
-                yDelta <= TAP_MOVEMENT_THRESHOLD &&
-                timeDelta <= TAP_TIME_THRESHOLD;
+        return isWithinTapBounds(lastTouchX, lastTouchY) && timeDelta <= TAP_TIME_THRESHOLD;
     }
 
     private byte getMouseButtonIndex()
@@ -58,7 +71,13 @@ public class TouchContext {
         originalTouchX = lastTouchX = eventX;
         originalTouchY = lastTouchY = eventY;
         originalTouchTime = System.currentTimeMillis();
-        cancelled = false;
+        cancelled = confirmedDrag = confirmedMove = false;
+        distanceMoved = 0;
+
+        if (actionIndex == 0) {
+            // Start the timer for engaging a drag
+            startDragTimer();
+        }
 
         return true;
     }
@@ -69,10 +88,17 @@ public class TouchContext {
             return;
         }
 
-        if (isTap())
-        {
-            byte buttonIndex = getMouseButtonIndex();
+        // Cancel the drag timer
+        cancelDragTimer();
 
+        byte buttonIndex = getMouseButtonIndex();
+
+        if (confirmedDrag) {
+            // Raise the button after a drag
+            conn.sendMouseButtonUp(buttonIndex);
+        }
+        else if (isTap())
+        {
             // Lower the mouse button
             conn.sendMouseButtonDown(buttonIndex);
 
@@ -87,24 +113,101 @@ public class TouchContext {
         }
     }
 
+    private synchronized void startDragTimer() {
+        dragTimer = new Timer(true);
+        dragTimer.schedule(new TimerTask() {
+            @Override
+            public void run() {
+                synchronized (TouchContext.this) {
+                    // Check if someone already set move
+                    if (confirmedMove) {
+                        return;
+                    }
+
+                    // Check if someone cancelled us
+                    if (dragTimer == null) {
+                        return;
+                    }
+
+                    // Uncancellable now
+                    dragTimer = null;
+
+                    // We haven't been cancelled before the timer expired so begin dragging
+                    confirmedDrag = true;
+                    conn.sendMouseButtonDown(getMouseButtonIndex());
+                }
+            }
+        }, DRAG_TIME_THRESHOLD);
+    }
+
+    private synchronized void cancelDragTimer() {
+        if (dragTimer != null) {
+            dragTimer.cancel();
+            dragTimer = null;
+        }
+    }
+
+    private synchronized void checkForConfirmedMove(int eventX, int eventY) {
+        // If we've already confirmed something, get out now
+        if (confirmedMove || confirmedDrag) {
+            return;
+        }
+
+        // If it leaves the tap bounds before the drag time expires, it's a move.
+        if (!isWithinTapBounds(eventX, eventY)) {
+            confirmedMove = true;
+            cancelDragTimer();
+            return;
+        }
+
+        // Check if we've exceeded the maximum distance moved
+        distanceMoved += Math.sqrt(Math.pow(eventX - lastTouchX, 2) + Math.pow(eventY - lastTouchY, 2));
+        if (distanceMoved >= TAP_DISTANCE_THRESHOLD) {
+            confirmedMove = true;
+            cancelDragTimer();
+            return;
+        }
+    }
+
     public boolean touchMoveEvent(int eventX, int eventY)
     {
         if (eventX != lastTouchX || eventY != lastTouchY)
         {
-            // We only send moves for the primary touch point
+            // We only send moves and drags for the primary touch point
             if (actionIndex == 0) {
+                checkForConfirmedMove(eventX, eventY);
+
                 int deltaX = eventX - lastTouchX;
                 int deltaY = eventY - lastTouchY;
 
                 // Scale the deltas based on the factors passed to our constructor
-                deltaX = (int)Math.round((double)deltaX * xFactor);
-                deltaY = (int)Math.round((double)deltaY * yFactor);
+                deltaX = (int)Math.round((double)Math.abs(deltaX) * xFactor);
+                deltaY = (int)Math.round((double)Math.abs(deltaY) * yFactor);
+
+                // Fix up the signs
+                if (eventX < lastTouchX) {
+                    deltaX = -deltaX;
+                }
+                if (eventY < lastTouchY) {
+                    deltaY = -deltaY;
+                }
+
+                // If the scaling factor ended up rounding deltas to zero, wait until they are
+                // non-zero to update lastTouch that way devices that report small touch events often
+                // will work correctly
+                if (deltaX != 0) {
+                    lastTouchX = eventX;
+                }
+                if (deltaY != 0) {
+                    lastTouchY = eventY;
+                }
 
                 conn.sendMouseMove((short)deltaX, (short)deltaY);
             }
-
-            lastTouchX = eventX;
-            lastTouchY = eventY;
+            else {
+                lastTouchX = eventX;
+                lastTouchY = eventY;
+            }
         }
 
         return true;
@@ -112,6 +215,14 @@ public class TouchContext {
 
     public void cancelTouch() {
         cancelled = true;
+
+        // Cancel the drag timer
+        cancelDragTimer();
+
+        // If it was a confirmed drag, we'll need to raise the button now
+        if (confirmedDrag) {
+            conn.sendMouseButtonUp(getMouseButtonIndex());
+        }
     }
 
     public boolean isCancelled() {

app/src/main/java/com/limelight/binding/video/MediaCodecDecoderRenderer.java

@@ -31,6 +31,7 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
     private final boolean needsSpsBitstreamFixup, isExynos4;
     private VideoDepacketizer depacketizer;
     private final boolean adaptivePlayback, directSubmit;
+    private final boolean constrainedHighProfile;
     private int initialWidth, initialHeight;
 
     private boolean needsBaselineSpsHack;
@@ -56,7 +57,8 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
         if (decoder == null) {
             // This case is handled later in setup()
             needsSpsBitstreamFixup = isExynos4 =
-            adaptivePlayback = directSubmit = false;
+            adaptivePlayback = directSubmit =
+            constrainedHighProfile = false;
             return;
         }
 
@@ -67,6 +69,7 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
         adaptivePlayback = MediaCodecHelper.decoderSupportsAdaptivePlayback(decoderName, decoder);
         needsSpsBitstreamFixup = MediaCodecHelper.decoderNeedsSpsBitstreamRestrictions(decoderName, decoder);
         needsBaselineSpsHack = MediaCodecHelper.decoderNeedsBaselineSpsHack(decoderName, decoder);
+        constrainedHighProfile = MediaCodecHelper.decoderNeedsConstrainedHighProfile(decoderName, decoder);
         isExynos4 = MediaCodecHelper.isExynos4Device();
         if (needsSpsBitstreamFixup) {
             LimeLog.info("Decoder "+decoderName+" needs SPS bitstream restrictions fixup");
@@ -74,6 +77,9 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
         if (needsBaselineSpsHack) {
             LimeLog.info("Decoder "+decoderName+" needs baseline SPS hack");
         }
+        if (constrainedHighProfile) {
+            LimeLog.info("Decoder "+decoderName+" needs constrained high profile");
+        }
         if (isExynos4) {
             LimeLog.info("Decoder "+decoderName+" is on Exynos 4");
         }
@@ -433,6 +439,23 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
         return buf;
     }
 
+    private void doProfileSpecificSpsPatching(SeqParameterSet sps) {
+        // Some devices benefit from setting constraint flags 4 & 5 to make this Constrained
+        // High Profile which allows the decoder to assume there will be no B-frames and
+        // reduce delay and buffering accordingly. Some devices (Marvell, Exynos 4) don't
+        // like it so we only set them on devices that are confirmed to benefit from it.
+        if (sps.profile_idc == 100 && constrainedHighProfile) {
+            LimeLog.info("Setting constraint set flags for constrained high profile");
+            sps.constraint_set_4_flag = true;
+            sps.constraint_set_5_flag = true;
+        }
+        else {
+            // Force the constraints unset otherwise (some may be set by default)
+            sps.constraint_set_4_flag = false;
+            sps.constraint_set_5_flag = false;
+        }
+    }
+
     @SuppressWarnings("deprecation")
     private void submitDecodeUnit(DecodeUnit decodeUnit, int inputBufferIndex) {
         long timestampUs = System.nanoTime() / 1000;
@@ -535,25 +558,6 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
                     sps.vuiParams.bitstreamRestriction = null;
                 }
 
-                // Set constraint flags 4 & 5 to make this Constrained High Profile
-                // which allows the decoder to assume there will be no B-frames and
-                // reduce delay and buffering accordingly.
-                //
-                // This profile is fairly new (standardized in H264 revision 2012-06) and
-                // it's known that at least some devices don't like these previously unused
-                // constraints being set. To minimize the chance of interfering with old devices,
-                // I'm only setting these on KitKat or higher. It's an arbitrary limitation and could
-                // change if it causes problems.
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-                    sps.constraint_set_4_flag = true;
-                    sps.constraint_set_5_flag = true;
-                }
-                else {
-                    // Force the constraints unset for < 4.4 (some may be set by default)
-                    sps.constraint_set_4_flag = false;
-                    sps.constraint_set_5_flag = false;
-                }
-
                 // If we need to hack this SPS to say we're baseline, do so now
                 if (needsBaselineSpsHack) {
                     LimeLog.info("Hacking SPS to baseline");
@@ -561,6 +565,9 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
                     savedSps = sps;
                 }
 
+                // Patch the SPS constraint flags
+                doProfileSpecificSpsPatching(sps);
+
                 // Write the annex B header
                 buf.put(header.data, header.offset, 5);
 
@@ -613,6 +620,9 @@ public class MediaCodecDecoderRenderer extends EnhancedDecoderRenderer {
         // Switch the H264 profile back to high
         savedSps.profile_idc = 100;
 
+        // Patch the SPS constraint flags
+        doProfileSpecificSpsPatching(savedSps);
+
         // Write the SPS data
         savedSps.write(inputBuffer);
 

app/src/main/java/com/limelight/binding/video/MediaCodecHelper.java

@@ -27,6 +27,7 @@ public class MediaCodecHelper {
 	private static final List<String> whitelistedAdaptiveResolutionPrefixes;
     private static final List<String> baselineProfileHackPrefixes;
     private static final List<String> directSubmitPrefixes;
+	private static final List<String> constrainedHighProfilePrefixes;
 
     static {
         directSubmitPrefixes = new LinkedList<String>();
@@ -68,6 +69,9 @@ public class MediaCodecHelper {
 		whitelistedAdaptiveResolutionPrefixes.add("omx.qcom");
 		whitelistedAdaptiveResolutionPrefixes.add("omx.sec");
 		whitelistedAdaptiveResolutionPrefixes.add("omx.TI");
+
+		constrainedHighProfilePrefixes = new LinkedList<String>();
+		constrainedHighProfilePrefixes.add("omx.intel");
 	}
 
 	private static boolean isDecoderInList(List<String> decoderList, String decoderName) {
@@ -116,6 +120,10 @@ public class MediaCodecHelper {
 		return false;
 	}
 
+	public static boolean decoderNeedsConstrainedHighProfile(String decoderName, MediaCodecInfo decoderInfo) {
+		return isDecoderInList(constrainedHighProfilePrefixes, decoderName);
+	}
+
     public static boolean decoderCanDirectSubmit(String decoderName, MediaCodecInfo decoderInfo) {
         return isDecoderInList(directSubmitPrefixes, decoderName) && !isExynos4Device();
     }

app/src/main/java/com/limelight/preferences/PreferenceConfiguration.java

@@ -90,24 +90,7 @@ public class PreferenceConfiguration {
 
     public static int getDefaultBitrate(Context context) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-
-        String str = prefs.getString(RES_FPS_PREF_STRING, DEFAULT_RES_FPS);
-        if (str.equals("720p30")) {
-            return BITRATE_DEFAULT_720_30;
-        }
-        else if (str.equals("720p60")) {
-            return BITRATE_DEFAULT_720_60;
-        }
-        else if (str.equals("1080p30")) {
-            return BITRATE_DEFAULT_1080_30;
-        }
-        else if (str.equals("1080p60")) {
-            return BITRATE_DEFAULT_1080_60;
-        }
-        else {
-            // Should never get here
-            return DEFAULT_BITRATE;
-        }
+        return getDefaultBitrate(prefs.getString(RES_FPS_PREF_STRING, DEFAULT_RES_FPS));
     }
 
     private static int getDecoderValue(Context context) {