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。
Hold the line, please https://contraloria.bcs.gob.mx/stmap_37lbquli.html?diclofenac.levitra.olmesartan.female-rx-oil coupon para azelex He was born in Quincy, Illinois, the son of soybean farmers. He made his fortune trading soybeans and other commodities. One of his innovations was developing an automated way for managing a futures trading account in the late 1970s.
I've come to collect a parcel http://photosintesi.com/stmap_24ssxciv.html?viramune.levitra.urispas ashwagandha benefits in telugu Education minister Elizabeth Truss said: "Today's figures show the majority of children are performing well and they, along with their parents and teachers, should be congratulated for their achievements.
Could I ask who's calling? https://www.system32solutions.com.mx/stmap_24pkcjjq.html?terbinafine.cyklokapron.minoxidil.levitra minoxidil 2 mk precio "Even if you weren't a part of that team, it's definitely motivation to see how they battled back from that and won the Super Bowl," he said. "We definitely use that as motivation, but we have to write our own story and understand how we want this season to go for ourselves. So we're taking it one game at a time, but '07 will definitely be motivation for the rest of this season moving forward."
Not in at the moment http://adamdesautels.com/stmap_24pkcjjq.html?oxytrol.levitra.blopress.ketotifen ditropan tablete iskustva Dongiovanni said Doctors Without Borders is expecting an influx of Murle patients in coming days. More than 120,000 people have fled their homes because of the violence, many of them Murle women and children. They also have not yet emerged.
I can't get a dialling tone https://endydaniyanto.net/stmap_37whvkrr.html?calcitriol.ginseng.ovral.cialis was ist der unterschied zwischen voltaren und diclofenac? The deals announced on Thursday come a few months afterCrestwood, Inergy LP and Inergy Midstream LP merged to form a $7billion entity to cater to a spurt in Bakken shale production,which has made North Dakota the most prolific oil-producingstate after Texas.
Did you go to university? http://photosintesi.com/stmap_37lbquli.html?viagra.sulfamethoxazole.pfiagara.unisom mrsa septra England also have two umpiring reviews left, Australia none, and that in itself is a major advantage in a low-scoring match. Accidents happen in the heat – although both on-field umpires are from hot countries – and England can rectify them this morning, as Alastair Cook has used his reviews as judiciously as his predecessor Andrew Strauss did, whereas Australia have used up their two.