在mt6261上实现二维码展示和扫码

小李的飞刀

李杰的个人网站,手机游戏,手机页游

在mt6261上实现二维码展示和扫码

最近做了一个外包项目,在mt6261上实现二维码的展示和扫码功能……


最近做了一个外包项目,在mt6261上实现二维码的展示和扫码功能。

拒绝造轮子,所以当然要选择开源库。

由于是mtk功能机平台,只支持c,所以c++和java什么的就不考虑了。

二维码的编码,选择了qrencode,这个移植比较简单,不多说。

二维码的扫描算法,走了一些弯路。一开始根据网上的扫描算法速度对比,选择了quirc。但是移植好了实际上机测试,完全不是那回事,速度慢的要死,十几秒没反应,机器直接重启了。查了下原因,才发现,原来它使用了浮点算法,而mt6261根本就不支持硬件浮点计算,是用的软浮点,怪不得这么慢!

最后选择了zbar,并进行了裁剪和优化,运行效果良好,不到0.5秒就能完成从扫描到识别出二维码的操作。

源码就不贴出来了,外包项目,代码还是要适当保密。

 

博文最后更新时间:


评论

  • johnanz

    https://xnxxx.web.fc2.com/ xnxx

  • Stephen

    Yes, I play the guitar http://tubearchive.online/ixxx.html xtube Overall, Cisco earned $2.8 billion on sales of $12.4 billion for its fiscal fourth quarter -- and each figure was just a hair above Wall Street expectations. In-line results weren't quite enough to please investors who have become accustomed to Cisco trouncing analysts' forecasts.

  • Errol

    A company car http://xnxxrating.online/youporn.html cam4 The authors of the study, published in journal JAMA Ophthalmology, concluded: “The risk for cataract is increased among statin users as compared with non-users. The risk-benefit ratio of statin use, specifically for primary prevention, should be carefully weighed, and further studies are warranted.”

  • Chong

    Where do you live? http://porntuberating.online/nudevista.html efukt Rouhani, who took office in August, reiterated that stance when asked about recent comments by Israeli Prime Minister Benjamin Netanyahu questioning his motives. Israel, thought to be the only nuclear-armed power in the Middle East, is pushing to halt Iran's nuclear advance, and Netanyahu has called Rouhani a "wolf in sheep's clothing."

  • Antony

    We went to university together http://tubearchive.online/sextube.html beeg Miley Cyrus does deserve some credit for making this year's VMAs a success on social media. According to Twitter, the East Coast telecast of her performance stirred a record 306,100 tweets per minute, beating the previous tweet-per-minute record during Beyonce's Super Bowl performance earlier this year.

  • Everett

    I've got a part-time job http://tubereviews.online/xvideos.html cliphunter Many top employers are prepared to consider 2:2 applicants if they also have a Masters. This is an option to consider, but be sure to weigh up course costs and funding against the employment benefits.

发表评论

个人资料

姓名:李杰。
爱好:编程,慢跑。
2001年来北京发展,从事软件开发17年。
文曲星Lava语言的创造者。
Iava&LavaX跨平台语言的发明者。
Mirage引擎之父。
手机拳皇97高清版主程序。

联系我

我以前的博客

Email: 39065627@qq.com

博客统计

访问量:15203832

博文总数:14 评论总数:520154

原创14 转载0 翻译0