jpzhu

http://blog.csdn.net/zirconsdu/article/details/8170078
http://eli.thegreenplace.net/2011/11/03/position-independent-code-pic-in-shared-libraries/
http://eli.thegreenplace.net/2011/08/25/load-time-relocation-of-shared-libraries/

jpzhu

sudo apt-get install git-core vim aptitude ssh
sudo apt-get install g++ gcc automake build-essential
sudo apt-get install g++-multilib gcc-multilib 
sudo apt-get install git-core exuberant-ctags  minicom
sudo apt-get install curl tree tofrodos bison flex rpm2cpio

#Document:Help
sudo apt-get install make-doc bash-doc gcc-doc devhelp
sudo apt-get install doxygen graphviz freemind
sudo apt-get install gperf curl xsltproc libxml2-utils

jpzhu

#include <linux/videodev2.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>

int main(int argc, char **argv)
{
    int i, ctrl, fd = open(argc > 1 ? argv[1] : "/dev/video0", O_RDWR);
    if(fd < 0) {
        perror("open failed");

jpzhu

从一个视频流中截取中间一段。
ffmpeg -ss 00:30:00 -t 00:00:05 -i orginalfile -vcodec copy -acodec copy newfile

jpzhu

http://blog.csdn.net/wbd880419/article/details/6794592
http://blog.csdn.net/zirconsdu/article/details/8170078

主题: 动态库的文章
http://eli.thegreenplace.net/2011/11/03/position-independent-code-pic-in-shared-libraries/
http://eli.thegreenplace.net/2011/08/25/load-time-relocation-of-shared-libraries/

jpzhu

• 25 Free Computer Science Ebooks
• Book Training - On Video
• Cheat Sheets (Free)
• CodePlex List of Free E-Books
• Free Tech Books
• Galileo Computing (German)
• How to Design Programs: An Introduction to Computing and Programming
• Microsoft Press: Free E-Books
MindView Inc

jpzhu

Andoird 中使用了一种不同传统Java JNI的方式来定义其native的函数。
其中很重要的区别是Andorid使用了一种Java 和 C 函数的映射表数组，并在其中描述了函数的参数和返回值。这个数组的类型是JNINativeMethod，定义如下：

typedef struct {
    const char* name;
    const char* signature;
    void* fnPtr;
} JNINativeMethod;

第一个变量name是Java中函数的名字。

jpzhu

        JSONArray response_out = null;
        static JSONObject jObj = null;

        private static final String API_REQUEST_CODE = "r";
        private static final String API_SERVICE_CODE = "s";
        private static final String API_RESPONSE_OUT = "o";
        private static final String TAG_ID = "id";
        private static final String TAG_CATEGORY = "category";
        private static final String TAG_NAME = "name";
        private static final String TAG_STREAM = "stream";

jpzhu

import android.media.MediaPlayer;


//Create a MediaPlayer Object 
MediaPlayer mMediaPlayer = new MediaPlayer();


//Prepare the data for player
//This take some time, maybe used in an asynctask()
// streami type could be "Uri" or "String" 

jpzhu

package com.windriver.ps.test;

class example{
    private int num;
    void setNum(int n){ num = n;}
    private int getNum(){ return num;}

    public static void main(String args[]){
        example ex = new example();
        ex.num = 6;