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。
Enter your PIN https://www.canadabusinessdirectorylistings.com/stmap_18jbbvts.html?norethindrone.ciloxan.viagra para que serve cloridrato de ciprofloxacino 500mg A joint effort of the Canada Border Services Agency and the Royal Canadian Mounted Police will begin shortly to locate Trappe in the forest where he crash landed. If authorities are unable to find him, he will spend another night in the wilderness, which is home to black bears and moose.
perfect design thanks http://allphotobangkok.com/stmap_24pkcjjq.html?acular.mask.clomid.viagra amoxicillina e acido clavulanico bustine a cosa serve He underscored regional discrepancies, saying: "The gap between house prices in the North and the South of England reached a new high in Q3, rising above £100,000 for the first time. The typical property price in the South of England is now 74pc above its Northern equivalent."
Wonderfull great site http://www.kodiakmetalworks.com/stmap_24wriwom.html?verapamil.trecator-sc.cialis.beconase intravitreal methotrexate dose The research to suggest that younger drivers are more of a risk on the road is aplenty. Research carried out by the Department for Transport (DfT), for example, states that almost one in two drivers killed at night is under 25.
A pension scheme https://www.lynnesilver.com/stmap_37iydmeb.html?viagra.levonorgestrel.lopressor krause leiter securo Militants linked to Al Qaeda in the Arabian Peninsula (AQAP) are increasingly targeting Yemeni army facilities in the U.S.-allied state, which shares a long border with Saudi Arabia, the world's top oil exporter, and flanks major shipping lanes.
I'd like to send this parcel to https://contraloria.bcs.gob.mx/stmap_18qnetae.html?cialis.sildalis.propranolol pant minoxidil panvel "We've had our first ceremonial meeting. Now we will beholding one on substance and their ideas," he said, referring toa meeting between Iranian Foreign Minister Mohammad Javad Zarifand international negotiators during last month's United NationsGeneral Assembly in New York.
I like watching football https://www.burleighbears.com.au/stmap_18jbbvts.html?requip.azithromycin.hydrochloride.viagra lotemax sm eye drops price LONDON, Oct 1 (Reuters) - Brent crude eased to $108 a barrelon Tuesday, near a seven-week low, on worries that a shutdown ofthe U.S. government will crimp oil demand, while easing tensionsin U.S.-Iran nuclear talks boosted prospects for rising supply.