java - Android:在 HTC One X 上使用 Camera.Parameters.SCENE_MODE_HDR 时出现错误

Question

我必须在我的应用程序中使用场景 HDR。此选项自 Android 版本 4.2 起可用，因此应该在 HTC One X 上可用。但是，我的应用程序在启动时崩溃了。我尝试了这段代码，它可以在 Android 4.2.1 的 acer 上运行。我使用 SurfaceView 来显示预览。这是我使用的代码:

private void setParameters(){

    Camera.Parameters params = camera.getParameters();
    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1)
        params.setSceneMode(Camera.Parameters.SCENE_MODE_HDR );
    camera.setParameters(params);
}
@Override
public void surfaceCreated(SurfaceHolder arg0) {

    camera = Camera.open();  
    try {  
        camera.setPreviewDisplay(holder); 
        setParameters();

    } catch (IOException exception) {  
        camera.release();  
        camera = null;  
    }  
}

这是日志:

10-18 16:11:13.486: E/(24770): file /data/data/com.nvidia.NvCPLSvc/files/driverlist.txt: not found!
10-18 16:11:13.486: I/(24770): Attempting to load EGL implementation /system/lib//egl/libEGL_tegra_impl
10-18 16:11:13.491: I/(24770): Loaded EGL implementation /system/lib//egl/libEGL_tegra_impl
10-18 16:11:13.516: I/(24770): Loading GLESv2 implementation /system/lib//egl/libGLESv2_tegra_impl
10-18 16:11:13.801: W/dalvikvm(24770): threadid=1: thread exiting with uncaught exception (group=0x41f7aa08)
10-18 16:11:13.806: E/AndroidRuntime(24770): FATAL EXCEPTION: main
10-18 16:11:13.806: E/AndroidRuntime(24770): java.lang.RuntimeException: setParameters failed
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.hardware.Camera.native_setParameters(Native Method)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.hardware.Camera.setParameters(Camera.java:1588)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at com.hologram.camerarv.CamerarvSurfaceView.setParameters(CamerarvSurfaceView.java:98)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at com.hologram.camerarv.CamerarvSurfaceView.surfaceCreated(CamerarvSurfaceView.java:183)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.SurfaceView.updateWindow(SurfaceView.java:569)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.SurfaceView.access$000(SurfaceView.java:86)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:174)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:680)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2156)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1190)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4860)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:766)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.Choreographer.doCallbacks(Choreographer.java:575)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.Choreographer.doFrame(Choreographer.java:542)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:751)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.os.Handler.handleCallback(Handler.java:725)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.os.Handler.dispatchMessage(Handler.java:92)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at android.app.ActivityThread.main(ActivityThread.java:5751)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at java.lang.reflect.Method.invokeNative(Native Method)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at java.lang.reflect.Method.invoke(Method.java:511)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1083)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850)
10-18 16:11:13.806: E/AndroidRuntime(24770):    at dalvik.system.NativeStart.main(Native Method)

感谢您的帮助。

Answer 1

来自官方文档:

Different devices may have different camera capabilities, such as picture size or flash modes. The application should query the camera capabilities before setting parameters. For example, the application should call getSupportedColorEffects() before calling setColorEffect(String). If the camera does not support color effects, getSupportedColorEffects() will return null.

首先尝试检查该设备是否支持 HDR 模式。