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。
We'll need to take up references http://www.helloartdept.com/wordpress/stmap_21ojktcc.html?cefadroxil.abacavir.cialis 3v lithium battery Jennings, on the other hand, seems to have hit a snag in his development. Despite playing starter’s minutes (34.6 on average for his four-year career) since being drafted in 2009, Jennings is still taking many of the bad shots that held back his performance in his rookie season. He’s quick enough to get to the basket but doesn’t get there nearly as often as he should. Some of that can be chalked up to a Milwaukee offense that was never quite right — or quite talented enough — under Scott Skiles, but Jennings still should have progressed more as a passer or scorer than he’s demonstrated thus far.
I'd like to open a business account https://toddmillerlaw.com/stmap_64kncqzz.html?crixivan.desogestrel.viagra himalaya neem tablets review quora Oct 10 (Reuters) - A jury in California on Thursday foundToyota Motor Corp not liable in one of the firstwrongful death lawsuits to go to trial in the United States overalleged defects that caused some vehicles to unexpectedlyaccelerate.
How much is a First Class stamp? http://www.capitalcomre.com/stmap_39bocxge.html?levitra.terramycin.seroflo rxgood "Ours is really built around an international or Macau standard, at the very least," a casino executive in the Philippines told Reuters. "We know there is a group of players that like to victimise newly opened casinos."
A First Class stamp http://www.helloartdept.com/wordpress/stmap_39bocxge.html?repaglinide.finpecia.mirapex.levitra atorvastatina tabletas 10 mg The Syrian opposition coalition has not confirmed whether it will attend the Geneva talks, but the largest group within the coalition — the Syrian National Council — declared it would not take part.
perfect design thanks http://qnimate.com/stmap_39dykkca.html?cyclogyl.levitra.oxytetracycline.procardia para que sirve la gabapentina 100 mg A Middlesex County jury also found Tianle Li (tee-ahn-lay lee) guilty Tuesday of hindering her prosecution. Prosecutors say she will be sentenced to 30 years to life in prison when she returns to court Sept. 30.
Directory enquiries https://www.sanhisoc.es/stmap_21ojktcc.html?anafranil.diflucan.viagra buy voveran sr online baikalpharmacy.com A European-led group, also brokered by IndustriALL butseparate from the compensation talks, is working on the sameissue, but retailers signing up to its accord accept a bindingarbitration process on safety issues, enforceable in the courtsof the country where a company is domiciled.