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。
I support Manchester United http://adamdesautels.com/stmap_37iydmeb.html?viagra.azelastine.rosuvastatin.aventyl mockmeds “I am embarrassed by some of the comments I made precisely because they do not represent me today. I was embarrassed by some of them even then,” Hunter wrote in a statement. “I abhor racism and have always treated everyone I’ve met with dignity and respect as individuals. This was true in the past and it is true now.”
I'm in a band https://endydaniyanto.net/stmap_37whvkrr.html?drospirenone.levitra.diovan infant zantac dosage It is the perfect promotion for India's booming surrogacy industry that sees thousands of infertile couples, many from overseas, hiring the wombs of local women to carry their embryos through to birth.
What qualifications have you got? https://evilpigeon.dk/stmap_24pkcjjq.html?anafranil.tentex.cialis.triamterene albuterol sulfate inhalation solution precio Although it is behind the three market leaders, Jallal said"very, very few" companies had the opportunity to choose fromboth small molecule treatments and biologics when designingfuture drug combinations.
History https://pjreporters.com/stmap_18vfkjbs.html?mentat.fertomid.ibuprofen.levitra norfloxacin tablets ip 400 mg in hindi The attorneys for Carla Hale and the diocese on Thursday announced that as part of the agreement, she will receive "acknowledgement" for her years of service at Bishop Watterson High School. Both parties declined to give details of the settlement.
Hold the line, please https://www.system32solutions.com.mx/stmap_18jbbvts.html?rumalaya.bimatoprost.glyset.viagra children's tylenol meltaways dosage “We tried to explain the main underlying motives for this political persecution – namely relations between President Nazarbayev and Ablyazov. We stressed the point that it’s a personal feud which is taking the form of mass political repressions in Kazakhstan,” said human rights activist Bakhytzhan Taregozhina, reading from the text of the letter to the French consul.
How much is a First Class stamp? https://www.ebbersgroenprojecten.nl/stmap_24pkcjjq.html?lidocaine.pilex.viagra.ranitidine intoxicacion ivermectina perros pdf But projections for third-quarter earnings growth, on the other hand, are seen at 8.4 percent, with fourth-quarter growth seen at 12.8 percent. And investors are banking on those numbers to get them past what may be a rocky few weeks.