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
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。
International directory enquiries https://www.singingriverretirement.com/stmap_64kncqzz.html?cialis.zovirax.sinemet.vasotec pastillas anticonceptivas yasmin efectos Going back to iPhone OS 2.0, Apple released at least five beta versions. The last time a sixth beta was needed was in 2011 with iOS 5. That update ultimately required seven betas before Apple released a final version to the public.
Could I borrow your phone, please? http://www.blackmanband.com/stmap_21wizxfu.html?thorazine.viagra.levonorgestrel.cyclosporine clomid and menopause The government wants to cut state spending by 60 billion euros over its five-year term to meet deficit targets but steered clear of drastic cuts to military spending after armed forces officials and lawmakers said that would hamper France's ability to react to global security threats.
Very interesting tale http://www.capitalcomre.com/stmap_64mvltdi.html?cialis.ofloxacin.nymphomax.feldene spiriva respimat classification T3âs editor-in-chief Kieran Alger described the yearâs awards as âthe hardest fought yetâ, with other multiple winners including Apple (the Mac Book Air took Computer of the Year and the iPad Mini got Tablet of the Year) and Sony (they got the Digital Camera prize for the Nex-6 and TV of the Year for the Bravia KD-65X9005A).
I'd like a phonecard, please https://www.voyages-gallia.fr/stmap_39dykkca.html?flurbiprofen.cialis.erectalis bupropion 300 cena "I would encourage other third level colleges to follow their lead. By working together we can achieve our aim of being tobacco free by 2025," he added.Develop and introduce legislation to prohibit smoking within the campuses of primary schools, secondary schools and child care facilities.
Where did you go to university? http://chassell.net/stmap_39bocxge.html?precose.cialis.purim.cellcept methotrexate sodium injection j code Moffett Research analyst Craig Moffett said Minson'scomments means that Time Warner Cable may not want to borrowmore cash to buy back shares. The possibility that TWC might doso has been widely discussed as a possible defensive strategy tofend off a merger.
I work for a publishers https://helitecstructural.com.au/stmap_21wizxfu.html?suprax.viagra.chlorzoxazone.grifulvin-v zovirax duo dm If there's a BART strike, transit agencies are planning to add bus and ferry service, keep carpool lanes open all day and even give away coffee gift cards to encourage drivers to pick up riders. They're also encouraging workers to avoid peak traffic hours or telecommute if possible.