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http://blog.csdn.net/jiangwei0910410003/article/details/52057543First, prefaceIn the video broadcast is generally two video data sources, one is the camera data, one is recorded desktop data, and generally beautiful girls live is from the camera data, game Live is recorded desktop data, then today to see the first Data source analysis, There are many scenes of using the
Android Camera Real-Time Filter (8)1. What can Android Camera do?1. Function photo recording and video recorder (scanning applications, such as face recognition, business card recognition, and bar code recognition) 2. Implement your own Camera program based on the
In many cases, the android camera module not only previews, but also takes photos easily. Instead, it needs to be able to detect videos, such as the most common face detection. Before you press the photo button, you can detect the face, mark it in a rectangle, and then press the photo button. So how to get a preview frame video?
You only need to inherit the previewcallback interface in the activity. Example
The calling process of camera in android can be divided into the following layers:Package-> framework-> JNI-> camera (CPP) -- (binder) --> cameraservice-> camera Hal-> camera driver
Take the photo taking process as an example:1. After each parameter is set, after focusing is
1. Start camera1. An activity starts the call process:Oncreate () --> onstart () --> onresume ()Oncreate ():1. You can add the layout file and draw the interface.2. Enable the thread, start the hardware camera, and call cameraholder. instance (). open () to get an android. hardwarecamera instance mcameradeviceEnsurecameradevice () --> cameraholder. instance (). open () --> mcameradevice. getparameters (); E
Article Source: http://blog.csdn.net/dany1202/archive/2011/01/26/6164450.aspx
1. Start camera1. An activity starts the call process:Oncreate () --> onstart () --> onresume ()Oncreate ():1. You can add the layout file and draw the interface.2. Enable the thread, start the hardware camera, and call cameraholder. instance (). open () to get an android. hardwarecamera instance mcameradeviceEnsurecameradevice (
This article is mainly about: using the camera API to capture video data and save to a file, using Surfaceview, Textureview to preview the Camera data, take the NV21 data callback.Note: Requires permission:First, preview the Camera dataPeople who have done Android development generally know that there are two ways to d
This article translated from: http://developer.android.com/training/camera/videobasics.html
This article describes how to use the existing Camera application to take videos.
If your application only needs to integrate a small part of the video function, you can use the camera application provided on most Android device
one, what can Android camera do? 1. function
Take photos
Video recording
Viewfinder (scanning applications such as face recognition, business card recognition, barcode recognition)
2, according to the camera API to achieve their own photo program, a total of 7 steps
Created with Rapha?l 2.1.2
In the previous chapter, we completed the configuration of the Android Platform development environment, and also found a way to remove the OpenCV Manager API, then we start from scratch, the completion of a personal program, the implementation of the following functions:1. Identify the specified picture and draw the edge of the picture with a colored box2. Display a 3D model on the identified imageIt is not difficult to see that this is actually the
. DIRECTORY_PICTURES), "MyCameraApp ");
// This location works best if you want the created images to be shared
// Between applications and persist after your app has been uninstalled.
// Create the storage directory if it does not exist
If (! MediaStorageDir. exists ()){
If (! MediaStorageDir. mkdirs ()){
Log. d ("MyCameraApp", "failed to create directory ");
Return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat ("yyyyMMdd_HHmmss"). format (new Date ());
File me
To the small ant camera Android software users to detailed analysis to share the problem can not connect the solution.
Tutorial Sharing:
First make sure that the small ant camera is connected to the router, the blue status light is always bright.
Two. Open the router configuration interface, find the QoS feature settings, and turn on the QoS status.
Camera provides a method called Setparameters to help developers set the parameters of the camera.The camera's GetParameters method allows you to get the relevant parameters that are currently set for your cameras.Below is a brief introduction to the usage of several parameters used in video recording.First, set the Previewsize, that is, the video preview size, that is, the output to Surfaceview video image resolution size.It should be noted that prev
These days I took part in a company-run programming marathon, and I intend to use the Android camera to do it. I've always thought that the Android API was bad, but it didn't say exactly what was bad or how it would be better to improve. Take this opportunity and I'll explain it now. I think Android's API for webcam is awful, if you haven't used it, take a moment
Android Camera Samsung BUG:The recent use of the camera feature in Android projects, other models of mobile phones have been successful, but only in Samsung's camera encountered a bug.The bug is reflected as follows:(1) Image data may not be returned after the
Flash ANE camera for android, aneandroid
Android native camera ANE packaged with opencv2.4.9 ndk
Not very useful now
Run in Nexus7-I (4.4.4)
But it is not available on Sony LT18i.
Private function openCam (): void {If (! Camera. isSupported)Return;Var cameraNam: Array =
One in Android, the ACTION that corresponds to the photo is Android.provider.MediaStore.ACTION_IMAGE_CAPTURE. The activity used for taking pictures needs to return the photo image data,The ACTION that corresponds to the camera is Android.provider.MediaStore.ACTION_VIDEO_CAPTURETherefore, you need to use Startactivityforresult () to start the Activity. The code is as follows:Intent Intent = new Intent (media
Android calls camera error setParameters failed deep Parsing1. Camera
Camera is supported in the Android framework and allows you to take photos and videos. Therefore, you will always encounter some problems when using camera deve
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