嵌入式Linux下LCD应用编程: 读取摄像头画面完成本地视频监控画面显示

DS小龙哥发布时间：2020-09-19 09:56:29 ，浏览量：3

一、开发环境介绍

开发板：友善之臂Tiny4412

LCD型号: S702 、分辨率: 800*480

Linux内核版本: Linux 3.5

摄像头: USB免驱摄像头

文本显示采用矢量字库, FreeType引擎。

完整项目代码下载地址(包含矢量字库源码和编译安装方法): https://download.csdn.net/download/xiaolong1126626497/16680219

二、核心代码

注意:　文本编码必须是UTF-8编码．

#include 
#include 
#include


    
        
        
        
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	    基本
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	请求信息 : 2025-06-18 02:52:46 HTTP/2.0 GET : /home/article/detail/id/363624.html
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吞吐率 : 7.26req/s
内存开销 : 1,925.34 kb
查询信息 : 18 queries 0 writes 
文件加载 : 36
缓存信息 : 5 gets 0 writes 
配置加载 : 132
会话信息 : SESSION_ID=56245bnpnq12gts0ff60r025cn
    
    
        
    
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Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000695s ]
[ app_begin ] --END-- [ RunTime:0.000792s ]
[ view_parse ] --START--
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Run Behavior\ContentReplaceBehavior [ RunTime:0.000122s ]
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Run Behavior\ParseTemplateBehavior [ RunTime:0.020214s ]
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Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000337s ]
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	[2] session_save_path(): open_basedir restriction in effect. File(/var/lib/php/session) is not within the allowed path(s): (/www/wwwroot/www.chaojiit.com/:/tmp/) /www/wwwroot/www.chaojiit.com/ThinkPHP/Common/functions.php 第 1239 行.
[8192] Array and string offset access syntax with curly braces is deprecated /www/wwwroot/www.chaojiit.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 59 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 35 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 140 行.
[8] Trying to access array offset on value of type null /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 140 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 141 行.
[8] Trying to access array offset on value of type null /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 141 行.
[8] Undefined variable: pinglun_list /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 150 行.
[8] Undefined variable: top_list /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 185 行.
    
    
        
    
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