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。
Best Site Good Work http://josefinearenius.se/stmap_72xsvvgd.html?flutamide.viagra.trihexyphenidyl.pilex propranolol 40 mg precio farmacias guadalajara WASHINGTON â A "family glitch" in the 2010 health care law threatens to cost some families thousands of dollars in health insurance costs and leave up to 500,000 children without coverage, insurance and health care analysts say.
Who would I report to? https://mokameleman.com/stmap_15nrpill.html?viagra.apcalis.effexor bula allegra 120 pdf The decision “will give relief to merchants across the country and their customers, putting a stop to unconscionable price gouging that is completely at odds with the law,” the Merchants Payments Coalition, a group of merchants and retailers, said in a statement. Several merchants, including the National Restaurant Association, sued to overturn the rule.
Will I be paid weekly or monthly? https://richards.energy/stmap_72yxfzej.html?snovitra.cialis.acyclovir.ortho voltaren emulgel forte prix "Let's face it, it's beyond mythological to have Supermanand our new Batman facing off, since they are the greatestsuperheroes in the world," said Snyder, who has been confirmedas director of the as-yet unnamed sequel.
What do you like doing in your spare time? https://techflashes.com/stmap_15dawbxe.html?viagra.lioresal.lasix levofloxacin ophthalmic solution usp monograph Health professionals need to counsel heart and stroke patients on how to resume a healthy sex life, said a joint statement in the American Heart Association journal Circulation and the European Heart Journal.
very best job https://www.amecco.org.ar/wp/stmap_38ddgxdq.html?grisactin.diarex.levitra.raloxifene atenolol vs metoprolol on heart rate Prime Minister Viktor Orban's government, seekingre-election next year, has said it wants to ease borrowers'burden, spooking banks and financial markets at a time whenglobal investors are considering a pull out of emerging markets.
I'll text you later https://asianwhiteskin.com/stmap_15nrpill.html?prochlorperazine.tadalista.levitra zyrtec pi Berry, who with her 6-year-old daughter fought her way out from under their accused captor, 52-year-old Ariel Castro, was the first to speak. She appears calm and happy and smiles frequently in the video, which was filmed July 2.