视频显示如何缩略图照相机的同样的看法? [英] How display thumbnail of video the same view of camera?
本文介绍了视频显示如何缩略图照相机的同样的看法?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
相机$ C $账套方向:
Code set Orientation of Camera:
public static void setCameraDisplayOrientation(Activity activity,
int cameraId, android.hardware.Camera camera) {
try {
android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
camera.setDisplayOrientation(result);
} catch (Exception e) {
// TODO: handle exception
}
}
code显示结果文件的视频ImageView的:
Code display result file video to imageview:
Bitmap bm = ThumbnailUtils.createVideoThumbnail(dt.FileName,
MediaStore.Images.Thumbnails.MINI_KIND);
img.setScaleType(ImageView.ScaleType.CENTER_CROP);
img.setImageBitmap(bm);
如何视频显示缩略图照相机的同样的看法?
How display thumbnail of video the same view of camera?
推荐答案
使用矩阵:
Bitmap bmp = ThumbnailUtils.createVideoThumbnail(dt.FileName,
MediaStore.Images.Thumbnails.MINI_KIND);
img.setScaleType(ImageView.ScaleType.CENTER_CROP);
Matrix matrix = new Matrix();
matrix.postRotate(90);
bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(),
bmp.getHeight(), matrix, true);
img.setImageBitmap(bmp);
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