Question

我正在为Camera设置参数，以便为Android应用中的视频录制做好准备。此代码段似乎适用于多个设备，但在 LG G3 上崩溃：

java.lang.RuntimeException: setParameters failed
at android.hardware.Camera.native_setParameters(Native Method)
at android.hardware.Camera.setParameters(Camera.java:1852)

有谁知道其中一个参数是否对该设备有害？

 p = myCamera.getParameters();
        surfaceHolder = mSurfaceView.getHolder();
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        p.setPictureSize(cam_width, cam_height);

        if (myCamera != null) {
            try {
                myCamera.setPreviewDisplay(surfaceHolder);
                List<String> focusModes = p.getSupportedFocusModes();   
                if (focusModes.contains(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))
                    p.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO); 
                p.setPreviewSize(cam_width, cam_height);
                int[] max = VideoQuality.determineMaximumSupportedFramerate(p);
                p.setPreviewFpsRange(max[0], max[1]);
                p.setRecordingHint(true);
                if(myCamera != null)
                myCamera.setParameters(p);

cam_width＆amp; cam_height以这种方式计算：

 camprev = p.getSupportedPreviewSizes();
 int high_width_preview = myCamera.getParameters().getSupportedPreviewSizes().get(0).width;
 int high_height_preview = myCamera.getParameters().getSupportedPreviewSizes().get(0).height;
 for(int i =0; i< myCamera.getParameters().getSupportedPreviewSizes().size(); i++){
     Size sizet = myCamera.getParameters().getSupportedPreviewSizes().get(i);
     Log.d("TAGME_NEXT", "supported preview sizeS: " + sizet.width + " " + sizet.height);
     if(sizet.width > high_width_preview) {
     high_width_preview = sizet.width;
     high_height_preview = sizet.height;
     }
 }

 cam_width = high_width_preview;
 cam_height = high_height_preview;

Answer 1

解决了删除问题：

p.setPictureSize(cam_width, cam_height);

相机setParameters在LG G3上失败了

1 个答案: