Camera audo focus feature

Signed-off-by: Leo Ma <begeekmyfriend@gmail.com>

app/src/main/AndroidManifest.xml

@@ -8,6 +8,7 @@
     <uses-permission android:name="android.permission.FLASHLIGHT" />
 
     <uses-feature android:glEsVersion="0x00020000" android:required="true" />
+    <uses-feature android:name="android.hardware.camera.autofocus" android:required="true" />
 
     <application
         android:allowBackup="true"

library/src/main/java/net/ossrs/yasea/SrsCameraView.java

@@ -274,6 +274,9 @@ public class SrsCameraView extends GLSurfaceView implements GLSurfaceView.Render
         if (!supportedFocusModes.isEmpty()) {
             if (supportedFocusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
                 params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
+            } else if (supportedFocusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
+                params.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
+                mCamera.autoFocus(null);
             } else {
                 params.setFocusMode(supportedFocusModes.get(0));
             }