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
. 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
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
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
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
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1 Tags:
(1), variable: {$key} can be general variables, arrays and members of classes, but characters cannot be used ", only sin
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
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 (
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
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.
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
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",
-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
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
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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