<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[yonjon的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/yonjon</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; yonjon]]></copyright><item><title><![CDATA[Linux下v4l2采集编程笔记]]></title><link>https://blog.youkuaiyun.com/yonjon/article/details/9950855</link><guid>https://blog.youkuaiyun.com/yonjon/article/details/9950855</guid><author>yonjon</author><pubDate>Tue, 13 Aug 2013 16:50:31 +0800</pubDate><description><![CDATA[Linux下v4l2采集编程笔记
采集图片
1打开视频设备文件
STATUS open_dev()
{
         int fd;
         fd = open("/dev/video0",O_RDWR);
         if(fd
         {
                   perror("open video device faild:");]]></description><category></category></item><item><title><![CDATA[JPEG库安装以及移植步骤]]></title><link>https://blog.youkuaiyun.com/yonjon/article/details/9950807</link><guid>https://blog.youkuaiyun.com/yonjon/article/details/9950807</guid><author>yonjon</author><pubDate>Tue, 13 Aug 2013 16:48:32 +0800</pubDate><description><![CDATA[下载：
 http://www.ijg.org/
=============================================
pc主机安装jpeg库：
 1解压  

 tar zxvf jpegsrc.v9.tar.gz

 2进入jpeg-9：

 cd jpeg-9

 3指定安装目录：

 ./configure --prefix=/opt/jp]]></description><category></category></item><item><title><![CDATA[Madplay移植到mini2440步骤]]></title><link>https://blog.youkuaiyun.com/yonjon/article/details/9950399</link><guid>https://blog.youkuaiyun.com/yonjon/article/details/9950399</guid><author>yonjon</author><pubDate>Tue, 13 Aug 2013 16:30:54 +0800</pubDate><description><![CDATA[移植madplay
1.1 libmad简介
MAD （libmad）是一个开源的高精度 MPEG 音频解码库，支持 MPEG-1（Layer I, Layer II 和 LayerIII（也就是 MP3）。LIBMAD 提供 24-bit 的 PCM 输出，完全是定点计算，非常适合没有浮点支持的平台上使用。使用 libmad 提供的一系列 API，就可以非常简单地实现 MP3 数据解码工作。]]></description><category></category></item><item><title><![CDATA[Qt-4.6.3移植]]></title><link>https://blog.youkuaiyun.com/yonjon/article/details/9950055</link><guid>https://blog.youkuaiyun.com/yonjon/article/details/9950055</guid><author>yonjon</author><pubDate>Tue, 13 Aug 2013 16:18:27 +0800</pubDate><description><![CDATA[1 解压源码包
$ tar 
zxvf  qt-everywhere-opensource-src-4.6.3.tar.gz
$ cd  qt-everywhere-opensource-src-4.6.3/
2 配置Qt
./configure -prefix /usr/local/Trolltech/QtEmbedded-4.6.3-arm -opensource -confirm-]]></description><category></category></item><item><title><![CDATA[Tslib移植]]></title><link>https://blog.youkuaiyun.com/yonjon/article/details/9949709</link><guid>https://blog.youkuaiyun.com/yonjon/article/details/9949709</guid><author>yonjon</author><pubDate>Tue, 13 Aug 2013 16:01:31 +0800</pubDate><description><![CDATA[1.tslib触摸屏的校验程序，因为用触摸屏前，必须先进行触摸屏的校验
tar xvf tslib.tar 
cd tslib
./autogen.sh
./configure空格--prefix=/usr/local/tslib
空格--host=arm-linux空格ac_cv_func_malloc_0_nonnull=yes
make 
sudo make install
]]></description><category></category></item></channel></rss>