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。
In a meeting https://www.theyoungvision.com/stmap_42qktlqx.html?cyklokapron.menosan.prothiaden.viagra dulcolax guardian If the allegations against Manziel, made by unidentified sources to ESPN, are proved true by the NCAA, his eligibility for the coming season could be in doubt as well as his status as a Heisman winner.
I'm retired https://www.marblebeers.com/stmap_42qktlqx.html?levitra.tazalis.florinef.norpace albendazole tablet ip 400 mg price Increased intake of folate was also associated with a decreased risk of depression. Vegetables, fruit, berries, whole-grains, meat and liver are the most important dietary sources of folate. In addition, increased coffee consumption was non-linearly associated with a decreased risk of depression.
I love the theatre https://www.krizia.it/.tmb/stmap_81aaschp.html?sulfamethoxazole.ziprasidone.levitra benadryl cvs "This generation of filmmakers has seen most of its movieson small screens - there's less screen-sized prejudice - which Ithink is opening up a lot of choice and business models," saidTed Sarandos, chief content officer for Netflix.
In tens, please (ten pound notes) https://www.asmp.mpi.gov.lk/pharmacy/stmap_15nrpill.html?baclofen.chloramphenicol.mesylate.cialis vad kostar viagra p apoteket i sverige Condolences and sweet words minus the thanks of a grateful nation, however inadequate, amount to an unforgivable betrayal. Every Tea Party extremist bears the guilt for taking the government hostage. Nattering Texas Sen. Ted Cruz bears the guilt for heading the cheerleaders. House Speaker John Boehner bears the guilt for sanctioning the extortion.
Could I take your name and number, please? https://www.karasueksiogluemlak.com/pharmacy/stmap_15dawbxe.html?tacrolimus.lisinopril-hctz.rosuvastatin.viagra clonidine mg Moore said he's spent his first months in the NFL listening to and watching the other Giants defensive ends, trying to absorb everything they want him to learn. "Anytime they see me doing something wrong or see I could do something better, they always give me words of advice," he said. And he said he's fueled by everything from the questions about his desire to slipping to the third round of the draft to being labeled, he believes, as "a one-trick pony."
Hello good day https://oic.gov.pg/pharmacy/index.php/stmap_81pgyiva.html?perindopril.augmentin.nitrofurantoin.levitra ivermectin sperm function Fairfax's Watsa is personally seeking more than $1 billionfrom several leading Canadian and U.S. pension andprivate-equity funds to support the $4.7 billion bid, the Globeand Mail reported on Wednesday, citing unnamed people familiarwith the discussions.