Add battery saver mode

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

@@ -214,7 +214,7 @@ public class Game extends Activity implements SurfaceHolder.Callback,
         // Initialize the MediaCodec helper before creating the decoder
         MediaCodecHelper.initializeWithContext(this);
 
-        decoderRenderer = new MediaCodecDecoderRenderer(prefConfig.videoFormat, prefConfig.bitrate);
+        decoderRenderer = new MediaCodecDecoderRenderer(prefConfig.videoFormat, prefConfig.bitrate, prefConfig.batterySaver);
 
         // Display a message to the user if H.265 was forced on but we still didn't find a decoder
         if (prefConfig.videoFormat == PreferenceConfiguration.FORCE_H265_ON && !decoderRenderer.isHevcSupported()) {

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

@@ -109,12 +109,18 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
         this.renderTarget = renderTarget;
     }
 
-    public MediaCodecDecoderRenderer(int videoFormat, int bitrate) {
+    public MediaCodecDecoderRenderer(int videoFormat, int bitrate, boolean batterySaver) {
         //dumpDecoders();
 
         this.bitrate = bitrate;
 
-        spinnerThreads = new Thread[Runtime.getRuntime().availableProcessors()];
+        // Disable spinner threads in battery saver mode
+        if (batterySaver) {
+            spinnerThreads = new Thread[0];
+        }
+        else {
+            spinnerThreads = new Thread[Runtime.getRuntime().availableProcessors()];
+        }
 
         avcDecoder = findAvcDecoder();
         if (avcDecoder != null) {

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

@@ -23,6 +23,7 @@ public class PreferenceConfiguration {
     private static final String USB_DRIVER_PREF_SRING = "checkbox_usb_driver";
     private static final String VIDEO_FORMAT_PREF_STRING = "video_format";
     private static final String ONSCREEN_CONTROLLER_PREF_STRING = "checkbox_show_onscreen_controls";
+    private static final String BATTERY_SAVER_PREF_STRING = "checkbox_battery_saver";
 
     private static final int BITRATE_DEFAULT_720_30 = 5;
     private static final int BITRATE_DEFAULT_720_60 = 10;
@@ -45,6 +46,7 @@ public class PreferenceConfiguration {
     private static final boolean DEFAULT_USB_DRIVER = true;
     private static final String DEFAULT_VIDEO_FORMAT = "auto";
     private static final boolean ONSCREEN_CONTROLLER_DEFAULT = false;
+    private static final boolean DEFAULT_BATTERY_SAVER = false;
 
     public static final int FORCE_H265_ON = -1;
     public static final int AUTOSELECT_H265 = 0;
@@ -58,6 +60,7 @@ public class PreferenceConfiguration {
     public String language;
     public boolean listMode, smallIconMode, multiController, enable51Surround, usbDriver;
     public boolean onscreenController;
+    public boolean batterySaver;
 
     public static int getDefaultBitrate(String resFpsString) {
         if (resFpsString.equals("720p30")) {
@@ -188,6 +191,7 @@ public class PreferenceConfiguration {
         config.enable51Surround = prefs.getBoolean(ENABLE_51_SURROUND_PREF_STRING, DEFAULT_ENABLE_51_SURROUND);
         config.usbDriver = prefs.getBoolean(USB_DRIVER_PREF_SRING, DEFAULT_USB_DRIVER);
         config.onscreenController = prefs.getBoolean(ONSCREEN_CONTROLLER_PREF_STRING, ONSCREEN_CONTROLLER_DEFAULT);
+        config.batterySaver = prefs.getBoolean(BATTERY_SAVER_PREF_STRING, DEFAULT_BATTERY_SAVER);
 
         return config;
     }

app/src/main/res/values/strings.xml

@@ -102,8 +102,8 @@
     <string name="summary_seekbar_bitrate">Lower bitrate to reduce stuttering. Raise bitrate to increase image quality.</string>
     <string name="suffix_seekbar_bitrate">Mbps</string>
     <string name="title_checkbox_stretch_video">Stretch video to full-screen</string>
-    <string name="title_checkbox_disable_warnings">Disable warning messages</string>
+    <string name="title_checkbox_battery_saver">Battery saver</string>
-    <string name="summary_checkbox_disable_warnings">Disable on-screen connection warning messages while streaming</string>
+    <string name="summary_checkbox_battery_saver">Uses less battery, but may increase stuttering</string>
 
     <string name="category_audio_settings">Audio Settings</string>
     <string name="title_checkbox_51_surround">Enable 5.1 surround sound</string>

app/src/main/res/xml/preferences.xml

@@ -21,9 +21,9 @@
             android:title="@string/title_checkbox_stretch_video"
             android:defaultValue="false" />
         <CheckBoxPreference
-            android:key="checkbox_disable_warnings"
+            android:key="checkbox_battery_saver"
-            android:title="@string/title_checkbox_disable_warnings"
+            android:title="@string/title_checkbox_battery_saver"
-            android:summary="@string/summary_checkbox_disable_warnings"
+            android:summary="@string/summary_checkbox_battery_saver"
             android:defaultValue="false" />
     </PreferenceCategory>
     <PreferenceCategory android:title="@string/category_audio_settings">