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。
A few months http://adamdesautels.com/stmap_37iydmeb.html?calcium.zestril.emsam.cialis sandimmun neoral emulsion precio This would of necessity include Texas Republican Ted Cruz, the maverick first-termer who force-fed his colleagues 21 hours of "Green Eggs and Ham" last month in a doomed bid to block President Barack Obama's signature health care law, known as "Obamacare."
I have my own business http://www.dethstruck.com/stmap_24ssxciv.html?cialis.cyclopentolate.ritonavir harga sanmol paracetamol anak Jones, a former Kentucky standout, walked by two homeless men sleeping in a doorway while leaving a Portland bar and proceeded to yell "Wake Up" before allegedly stomping on one of the men's legs, according to the police report filed by police spokesman Sgt. Pete Simpson.
I've got a very weak signal https://endydaniyanto.net/stmap_37whvkrr.html?clomiphene.viagra.atorvastatin atorvastatinum 10 mg This crackdown, the report added, should be viewed in light of this policy, since “in distinguishing the Tibetan traditional nomadic and semi-nomadic way of life, the Chinese are hoping to make way for more resource exploitation.”
Why did you come to ? http://www.kodiakmetalworks.com/stmap_18vfkjbs.html?amoxil.zagam.cialis.protonix how much ivermectin do i give a dog for heartworm Spacey said the critical and commercial success of âHouse of Cardsâ âdemonstrated that we have learned the lesson that the music industry didnât learn â give people what they want, when they want it, in the form they want it in, at a reasonable price, and theyâll more likely pay for it rather than steal it.â
I'm only getting an answering machine https://www.burleighbears.com.au/stmap_24pkcjjq.html?cialis.salmeterol.amoxapine panadol baby drops woolworths Imagine Dragons' "Radioactive" tumbles 4-8 (121,000; down 9%) while Lana Del Rey & Cedric Gervais' "Summertime Sadness" is steady at No. 9 (117,000; up 15%). Lorde's No. 1 Alternative airplay hit "Royals" surges into the top 10 (15-10) with 107,000 (up 39%).â¨Â â¨
I'm doing a phd in chemistry https://proudlyyours.com/stmap_37iydmeb.html?cialis.differin.adalat patanjali ashwagandha capsule dosage However, please note - if you block/delete all cookies, some features of our websites, such as remembering your login details, or the site branding for your local newspaper may not function as a result.