logi vs logitech

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ffmpeg--h264--encoding && decoding C implementation and related principles in Linux

FFmpeg is a very powerful set of video audio processing libraries, however, the powerful features are generally unavoidable complex implementations, or more realistically, the "trouble" of the deployment and use of the processAbout "ffmpeg How to deploy" this is put in another article, the following into the topic:Both the Encoding encoder module and the decoding decoder module have init initialization method and resource free methodThe Init initialization method is mainly for the initialization

Use Android NDK to compile the OpenCV Application

. opencv/bin $ Javah study. opencv. FaceRec A study_opencv_FaceRec.h file is generated in the bin directory. Copy the file to the./jni directory. Note: If the API changes, manually delete the generated. h file. To prevent unexpected errors. Image Face Detection on layer c Use the text editor to create a facedetect. cpp in the jni directory to implement image face detection. Cpp Code # Include "cv. h" # Include "highgui. h" # Include # Include # Include # Include # Include # Include # Incl

Android (Java): JNI Source code

("Filejni");}public static native string Videocrypt (byte[] content, string dest_file);public static native byte[] Videoderypt (String dest_file);public static native String Videoderypt (string dest_file, Bytearrayoutputstream outputstream);}/* Don't EDIT this file-it are machine generated */#include #include #include #include Main header files for #include #include #define LOG_TAG "JNI"#define Logi (...) __android_log_print (Android_log_info, Log_ta

C Call Java method in JNI

Background requirementsWe need to call Java code in the JNI C code. Implementation principle: Use the reflective pretext provided by JNI to reflect the Java method and make the call.The key methods of JNI are explained.1. In the same class, call other methodsJniexportvoidjnicall java_cn_itcast_ndkcallback_dataprovider_callmethod1 (jnienv*env, Jobject obj) { //in the C code, call the Java code inside the method//Java Reflection//1. Find the Java code class file//Jclass (*findclass) (jnienv*, c

How to configure devices in Linux (I)

keyboard ing. For example, /Usr/X11R6/bin/xmodmap/usr/share/xmodmap. fr Set the keyboard in your X system to a French keyboard.    After the/etc/sysconfig/keyboard file is correctly configured, the configuration program of X system configures the section on keyboard configuration in X according to the information in this file. If the content of this file is incorrect or the file does not exist, X system cannot be started and configured.       2. Configure the mouse    2.1 Basic mouse informatio

Android NDK Development (iii)--Common error Brocade collection log using "Go"

name above[CPP]View PlainCopyprint? #include #include #include "Com_example_ndk_mainactivity.h" #include #define LOG_TAG "System.out.c" #define LOGD (...) __android_log_print (Android_log_debug, Log_tag, __va_args__) #define Logi (...) __android_log_print (Android_log_info, Log_tag, __va_args__) Jniexport jstring Jnicall Java_com_example_ndk_mainactivity_javafromjni ( jnienv* env, Jobject obj) { return (*env)->newstringut

Cqlctpl PHP template to start providing, best use, most powerful template

Template This is a more useful template, than smarty,fasttemplate and phplib template are easy to use Chinese Text Archive Http://www.cqlc.net/cn_cqlctpl.txt Here is the demo address: http://www.cqlc.net/web/tml.php Please respect the author's labor results, the following 3 file download address: Http://www.cqlc.net/cqlctpl.zip My homepage is: http://www.cqlc.net 1 Tags: (1), variable: {$key} can be general variables, arrays and members of classes, but characters cannot be used ", only sin

Linux Device Configuration-mouse Configuration

LinuxThe configuration process of a device is to use this information to configure the driver and working method of the device after detecting the device type and current working parameters of the device, for device detection process, see how to implement automatic hardware detection in Linux). To complete such a task, you need to do the following: First, a detailed device information file is required, which describes the device ID, the device driver corresponding to the device ID, and the devic

FFmpeg transcoding (AVI to MP4)

It's hard. After one months of ... Purpose: From an AVI transcoding to Mp4,avi (Video encoder: MPEG4, audio codec: MPEG2 audio,), MP4 (Video encoder: H264/AVC, Audio encoder: MPEG2 audio) As a result, the basic can be, the video has a little problem, audio can be. Here first put the code here, then slowly improve it, the audio must be resampled, the video is to be re-scaled ... There are also audio and video synchronization also wood has done, and so have done to add comments ... int Mp4tomp4 (

Android Development Practice: JNI Layer Thread callback Java function example

a callback function (Onnativecallback) that is called by the JNI layer and prints the value of count in the callback function.Looking at how the JNI layer opens threads and calls back to the Java layer (NATIVE.C), the key points are commented in the code:Native C implementation:1. header file inclusion and definition of global variables2. Implementation of the initialization function3. Turn on the shutdown thread implementation4. Threading implementation (key)Native C + + implementation#include

Mechanical keyboard What brand is good

What makes good: Germany as a large machinery manufacturing country, its mechanical keyboard is more well-known, especially a lot of friends familiar with the Cherry, is a 1953 since the establishment of the old brand, which in the mechanical keyboard manufacturing technology far more than other brands. The following is to introduce the most popular mechanical keyboard, the best sales of the top ten brands. 1, Thunder Snake Mechanical Keyboard 2, Cherry Mechanical keyboard 3.

PHP multiple button return values-php Tutorial

The problem of returning values of multiple buttons in PHP reads the name in the txt text cyclically, and adds a button after each name. The trouble is how to set the return value of the button and how to match the name with the button one by one. It doesn't matter if the value is set to the same, but it doesn't seem to work if you use the previous variable to assign values to the returned value name. Reply to discussion (solution) Add the previous name and paste your code. Add the pr

IE11 for Windows 7 Enterprise with SP1 failure

: Qqdownload IE left HelperPublished by: Tencent Technology (Shenzhen) company LimitedType: Browser Helper ObjectArchitecture: 32-bitVersion: 4.2.745.401File Date: 2013? Year 3? 28??? 15:37Last access date: 2014? 6 months? 9??? 16:00Class ID: {00000000-12C9-4305-82F9-43058F20E8D2}Usage Count: 538Block Count: 13Files: QQIEHelper01.dllFolder: C:\Program Files\xuanfengName: Send to OneNote (N)Published by: Not availableType: Browser extensionArchitecture: 32-bit and 64-bitVersion: Not availableFile

The de-weight of the Python list

author's ideas to solve the following problems.#需求: Counts the number of occurrences of an element for lis = [2,3,5,3,2,4,8,5,6,7,5].Lis = [2,3,5,3,2,4,8,5,6,7,5]# de -lis1 == {} for in Lis1: # count print(DIC)#需求如下: Give a list of shopping carts and count the results of the list output"""Goods = [{"Name": "Computer", "Price": 1999}, {"Name": "Logitech Mouse", "Price": 10}, {"Name": "Yacht", "Price": 20}, {"Name": "Beauty",

Android Operation Serial Port (Android serial Port API)

+", Parity: " + parity), if (isrunning) {log.i (TAG, "openserialport,the serial port is running"); return false;} MFd = Studiojni.serialportopen (path, baudrate,databits,stopbits,parity); if (mfd! = null) {isrunning = True;mfileinputstream = new FileInputStream (MFD); Mfileoutputstream = new FileOutputStream (mFd); }ELSE{LOG.I (TAG, "openserialport," + "The Deivce is null");} return isrunning;} public void Closeserialport () {log.i (TAG, "Closeserialport"); Studiojni.serialportclose (); isrunni

Android serial port (android serial port api) and androidserial

,jint stopbits,jchar parity){ LOGI(CAMERA_TAG,"serial_port_open"); int fd; speed_t speed; jobject mFileDescriptor; /* Check arguments */ { speed = getBaudrate(baudrate); if (speed == -1) { /* TODO: throw an exception */ LOGI(CAMERA_TAG,"serial_port_open,Invalid baudrate"); LOGE(CAMERA_TAG,"serial_port_open,Invalid baudrate"); return

Binder C + + class

, char** argv) { LOGI("binderclient"); printf("binderclient --\n"); int sum = 0; sp mTestBinserService;

Basic introduction to "Android Advanced" NDK/JNI programming technology

-build" to generate a dynamic library (you can also generate a dynamic library using run in Eclipse)(6) Java code "load" Dynamic library, invoke dynamic library1. Java calls CJava calls native method (Class param)The parameters in the method that are called in C (Jnienv*,jobject,jint ... )2. C calls JavaCall C,c first with Java and then callbackjniexport void Jnicall java_com_ndk2_test_providebean_callhi (jnienv *env,jobject obj) { Char*classname = "Com/ndk2/test/providebean"; Jclass Clazz;clazz

Java Access Hardware Service interface is provided in Ubuntu authoring Jni method for Android hardware abstraction Layer (HAL) module

provides Java interfaces.The first is to include the corresponding header file:[CPP]View Plaincopy #define LOG_TAG "HelloService" #include "jni.h" #include "JNIHelp.h" #include "android_runtime/androidruntime.h" #include #include #include #include #include then define the three JNI methods of Hello_init, Hello_getval, and Hello_setval:[CPP]View Plaincopy Namespace Android { / * Hardware access structure defined in the hardware abstract

Deep dive-Android system migration and platform development-sensor Hal Framework Analysis

also has a local method ing relationship. jniregisternativemethods is the Helper Method for registering a local method. Systemserver. after Java loads the libandroid_servers.so library, it calls init1 (). The ing relationship in the code above shows that it calls the local android_server_systemserver_init1 method, which calls system_init () directly (), in fact, it is implemented in frameworks/base/cmds/system_server/library/system_init.cpp: [CPP] View plaincopyprint? Extern "C" status_t sys

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