android camera grip

In the past two days, after programming the android camera module and setting various parameters, we found that during previewing, the photos were reversed, rather than up or down, but 90 °. My mobile phone is Huawei u9200 and I used android4.0.3. Later I saw fuse (90), and then the preview was normal. However, the photos are still skewed when they are opened on the computer. Tilted 90 °, and then added thi

caveats:1, Textureview is the increase after Android 4.0, the lower version number of this class. Textureview must work in an environment where hardware acceleration is enabled. This is also the setting of the activity in the configuration file: Android:hardwareaccelerated= "True" the default property is True, so no more writing. But if you write false, you can see Onsurfacetextureavailable () This callback will not come in. Textureview don't have su

caveats:1, Textureview is the Android 4.0 after the addition of the lower version of this class. Textureview must work in an environment where hardware acceleration is enabled, in the settings of the activity in the configuration file: Android:hardwareaccelerated= "True" is the default property, so no more writing is required. But if you write false, you can see Onsurfacetextureavailable () This callback will not come in, Textureview no surfacetextur

for the beginning of row y for the Y plane and row c for the U and V planes: yStride = (int) ceil (width/16.0) * 16; uvStride = (int) ceil (yStride/2)/16.0) * 16; ySize = yStride * height; uvSize = uvStride * height/2; yRowIndex = yStride * y; uRowIndex = ySize + uvSize + uvStride * c; vRowIndex = ySize + uvStride * c; size = ySize + uvSize * 2; www. 2ct O.com strongly recommends NV21 and YV21 formats, which are NV21 by default, that is, YUV420SP. Therefore, BitmapFactory resolution cannot be s

1.In the oncreate method: 1.1Call the getpreferredcameraid () method. In this method, the combopreferences object is added, which is used to manageProgramThe configuration file generated in the package name. After obtaining this object, some configurations are initialized. Then read the camera ID mcameraid from the configuration file and call util. the getcamerafacingintentextras (this) method is obtained through "

Camera Control for Android Development Currently, mobile phones generally provide camera functions. Some cameras even support more than 13 million pixels, and some even support independent focus and optical zoom. These functions are available only for slrs, even some mobile phones can be directly advertised to capture stars. It can be said that mobile phones have

Android framework camera review-Relationship between Camera CameraClient ICamera (1)-cl and c-) Where does mCamera go? Status_t Camera: connectLegacy (int cameraId, int halVersion, const String16 clientPackageName, {sp C = new Camera (cameraId); s Int clientUid, sp A

[Video] development secrets of Embedded Linux/Android drivers (3) camera driver development and android driver development Secrets of Embedded Linux/Android driver development (3) camera driver development Topic introduction:This topic provides an in-depth analysis of the

Check the system camera source, find the manifest file viewView Intent filter,action is Android.media.action.IMAGE_CAPTURECategory is Android.intent.category.DEFAULTGet Intent object, come out with newCall the setaction () method of the Intent Object , set the action, parameter:android.media.action.IMAGE_ CAPTURE Call intent setcategory () Call the PutExtra () method of the Intent object , pass the data, parameters:mediastore.extraoutput, value

Almost every app will use the camera function, the following small series to share the content of the cloud Habitat Community Platform for your reference, interested friends to study together! Two ways to start a camera 1. Direct Boot System camera Or specify a name to return the picture Mcurrentphotofile 2. Custom Launch

[Android developer] Section 1 Overview of camera Android's camera includes the viewfinder and photo taking functions. Currently, the camera program of the android release version has simple functions, but its program architecture is divided into two parts: client and server.

()) {Setresultsettingvalue (type,Resultvalue,Overridevalue,true);}if (Mconditionkey.equals (settingconstants.key_picture_ratio)) {//Add the following code listpreferencepref =null; pref =mresultsetting.getlistpreference (); Sharedpreferences.editoreditor =Pref.getsharedpreferences (settingconstants.key_picture_size).edit (); Editor.putstring (settingconstants.Key_picture_size,resultvalue); Editor.apply ();//Add as above code return;}record record = mresultsetting. new Record ( resultvalue,

, data); if (requestcode==10) {Toast.maketext (this, "photo successful", 0). Show (); }if (requestcode==20) {Toast.maketext (this, "camera success", 0). Show (); }} public void video (View v) {Intent Intent = new Intent (); Intent.setaction (mediastore.action_video_capture); Intent.putextra (Mediastore.extra_output, Uri.fromfile (New File (Environment.getexternalstoragedirectory (), " HAHA.3GP "))); Intent.putextra (mediastore.extra_

This article describes the Android program to achieve mobile phone camera method. Share to everyone for your reference, specific as follows: Today I got almost a day of cell phone photos, and later, to think, and now do not know what they know is right, first of all, if the use of this way to take pictures, the program in the simulator, just start will be a problem, do not know what the reason, guess proba

My knowledge of Android camera will be written all over again, gradually perfecting the camera network in the brain. 2 separate processes for 1.Android camera Android Camera is the C/

Code structure for Android camera The camera code for Android is mainly in the following directories: The Java part of the camera packages/apps/camera/. Where Camera.java is the main implementation of the file. This part of the

In Android, user portraits and android user portraits are set by accessing a local album or camera. Currently, almost all apps have the need to set up portraits when users register. There are three scenarios: (1) obtain the image of the local album and crop it as the Avatar. (2) Start the mobile phone camera, take the

Create a preview classTo allow users to effectively obtain images and videos, they must be able to see images in the camera. A camera preview class is a SurfaceView class that can display Real-Time Images in the camera, so users can frame and capture images or videos. The Code in the following example demonstrates how to create a basic

the HAL layer, the HAL layer in the maintenance cache queue, when receiving the inverted take_picture command to obtain a frame cache data, for transcoding, and then take the normal picture of the process of using @link Android.hardware.Camera.PictureCallback notifies the application layer of the data being photographed. Android5.0 implementation for 2 steps and 3 steps are implemented in the application layer, the application layer at the start of the preview to the HAL layer to pass 2 surface

Recently, the customer update system found that the previous project in the call to the camera, Flash returned, very strange, later found that Android 6.0 after the need for program authorization camera permissions, the default will give a hint, let the user authorization, personal feeling this feature is very good, probably as follows: Import