1 I帧,P帧,B帧,IDR帧,NAL单元 I frame:帧内编码帧,又称intra picture,I 帧通常是每个 GOP(MPEG 所使用的一种视频压缩技术)的第一个帧,经过适度地压缩,做为随机访问的参考点,可以当成图象.I帧可以看成是一个图像经过压缩后的产物: P frame: 前向预测编码帧,又称predictive-frame,通过充分将低于图像序列中前面已编码帧的时间冗余信息来压缩传输数据量的编码图像,也叫预测帧: B frame: 双向预测内插编码帧,又称bi-directio…

本文主要说明Setting的实现以及Mail这个功能模块如何使用Setting. 首先区分一下ABP中的Setting和Configuration. Setting一般用于需要通过外部配置文件(或数据库)设置的简单类型数据(一般就是字符串),比如SMTP HOST. Configuration一般只需要通过内部代码完成的配置,一般用于设置复杂类型的数据. 目前Abp在setting 这个功能模块只能从配置文件读取设置,无法从其他source(比如数据库)读取设置.也可以自定义SettingSto…

AuditLog: 继承自Entity<long>的实体类.封装AuditLog的信息. AuditingStore: 实现了IAuditingStore接口,实现了将AuditLog的信息保存到数据库的功能.其通过IRepository<AuditLog, long>实例完成对数据库的操作. BackgroundJobStore :  实现了IBackgroundJobStore接口,通过IRepository<BackgroundJobInfo, long>完成对B…

EBS Profile Setting (Personalization Basics): Personalization Basics For R12 Forms Enable personalizations.  System Administrator > Profile Options and set the following to Yes a. Personalize Self-Service Defn b. FND: Personalization region Link Enab…

This mini-howto describes how to set up KeePass on Centos 6. It requires building mono from source and installing the "portable" version of KeePass. Finally there are a few tweaks that need to be done so that it can execute properly. Building mo…

最近在系统为ubuntu14．04原版中,安装fictx.按照以往的经验应先把ibus卸载干净,否则可能会有冲突.因此惯性思维驱使,先卸载ibus,然后安装fcitx,但是问题出现了,system setting 中很多应用图标消失了.如下图所示: 通过网上查找相关的资料,发现在ubuntu14.04之前的版本中都没有问题,但是到了ubuntu14这个版本,不能再卸载ibus及其相关程序.主要原因在于很多实用程序依赖的一些库在卸载ibus的时候也一并删除了,并且当前版本的ibus和fcitx可以…

异常信息:Unexpected Exception caught setting 'outHeight' on 'class com.srpm.core.project.seismicFortification.action.SeismicFortificationAction: Error setting expression 'outHeight' with value ['isOutHeight', ] 这个异常出现的原因我找了下网上有多个,我知道的有: 1.没有GETTER/SETTER…

安装VS2015,启动以后,Package manager console崩溃,错误信息如下: Windows PowerShell updated your execution policy successfully, but the setting is overridden by a policy defined at a more specific scope. Due to the override, your shell will retain its current effecti…

*** does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. for architecture armv7 未来Watch应用须包含Bitcode,iOS不强制,但Xcode7默认会开启Bitcod…

vimperator confugration files :highlight Hint color:#000;background:rgb(250,230,150);border-radius:4px;width:20px;height:16px;font-size:14px;font-weight:bolder;border:2px solid rgb(250,200,50);box-shadow:2px 2px 5px rgb(80,80,80);text-align:center;:h…

遇到的问题:使用的Appium界面的server进行启动,每次启动时都会安装Appium Setting和Unlock文件. 通过log可以看到安装路径如下:   Appium Setting安装包路径:/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/appium-android-driver/node_modules/io.appium.settings/bin/settings_apk-…

As a non-Java developer, I am quit stuck in Java environment setting because I am not familiar with Java. I write it down as following, I think it is the best way to write it in /etc/profile: export JAVA_HOME=/usr/local/jdk1.8.0_111 export PATH=$JAVA…

1. Python Of course you will need Python. Still Python 2.7 is preferred, however if you would like to create new projects with Python 3, it is also fine to do. Newest Python could be downloaded from https://www.python.org/downloads/ 2. pip It is a ve…

setting.xml配置说明,learn from:http://pengqb.javaeye.com,http://blog.csdn.net/mypop/article/details/6146686 <?xml version="1.0" encoding="UTF-8"?> <settings xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http:…

<?xml version="1.0" encoding="UTF-8"?> <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding…

Error: Error setting TTL index on collection : sessions 一.步骤一: 这个问题一般是直接升级 mongodb和connect-mongo的版本为最新就可以了. (注:记得一定要删除掉node_module再重新安装,因为你在package.json中对引用的模块进行改变版本号,也不会更新的,需要删除掉后再重新下载安装,自己就是在这步坑了~~ - -!) 二.步骤二: 如果上面的步骤无法解决问题,那么就进行该步骤:检查express 配置se…

https://uwsgi.readthedocs.io/en/latest/tutorials/Django_and_nginx.html Setting up Django and your web server with uWSGI and nginx This tutorial is aimed at the Django user who wants to set up a production web server. It takes you through the steps re…

分析setting源代码获取sd卡大小 android系统有一个特点,即开源,我们可以得到任何一个应用的源代码,比如我们不知道这样的android代码怎么写,我们可以打开模拟器里面的设置(setting),里面有一个存储,我们可以下载setting的源代码,通过快捷方式(ctrl+h)一步步查找怎么写代码 1.1步骤: 比如下载android2.3的源代码(注意这里的源代码不是指sources里面的代码,source里面的代码是sdk的全部代码,这里的代码是指全部android的代码,包含sdk…

Mybatis配置报错元素类型为 "configuration" 的内容必须匹配 "(properties?,settings?,typeAliases?,typeHandlers?,objectFa 原因: mybatis-config.xml配置文件配置时,要注意节点顺序 顺序同错误提示信息一致: 元素类型为 "configuration" 的内容必须匹配 "(properties?,settings?,typeAliases?,typeHa…

在eclipse中启动tomcat时出现Setting property 'source' to 'org.eclipse.jst.jee.server:你的站点名'   did not find a matching property错误 解决办法: 1.在server控制台内,在服务器上点右键--属性 2.general选项卡中点switch location 这时,location变为:/servers/tomcat6.0 server at localhost.server 3.在pro…

1. Applications:…

最近每天半夜,服务器都会出现崩掉的现象,pc  app 都不能正常使用 查看错误日志发现问题所在: [Wed Nov 09 08:07:28.651642 2016] [mpm_winnt:error] [pid 4256:tid 2692] AH00326: Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting Starting the Apache2a service…

一.问题: 当git clone项目时报 error setting certificate verify locations: CAfile: E:/git/Git/mingw64/ssl/certs/ca-bundle.crt 错误 二.原因: 我的git的安装在E盘中一个叫GitProject的文件夹下(也就是我的ca_bundle.crt是在:E:/GitProject/Git/mingw64/ssl/certs/ca-bundle.crt目录下),当克隆项目的时候默认找的是git文件夹…

最近把Eclipse的maven插件从m2eclipse更新到m2e后出了一些莫名其妙的的问题.今天又出了一个,就是Eclipse新建的Maven Web project在tomcat里启动后报错,具体报错信息如下: 警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:test1' did not find a ma…

使用的MySQL数据库版本:5.5 插入或更新字段有大数据时(大于1M),会出现如下错误: ### Cause: com.mysql.jdbc.PacketTooBigException: Packet for query is too large (1132484 > 1048576). You can change this value on the server by setting the max_allowed_packet' variable. ; SQL []; Packet fo…

http://www.distilnetworks.com/setup-go-golang-ide-for-mac-os-x/#.V1Byrf50yM8 Programming in Go (Golang) – Setting up a Mac OS X Development Environment Published on February 4, 2015 At Distil, we have recently started to use Go (Golang) to expand the…

from:http://sharepointchick.com/archive/2012/07/29/setting-up-your-app-domain-for-sharepoint-2013.aspx The most important change in SharePoint 2013 for developers is the introduction of SharePoint apps. An app for SharePoint is a small and isolated a…

<settings     cacheModelsEnabled="true"     lazyLoadingEnabled="false"     enhancementEnabled="true"     maxSessions="64"     maxTransactions="8"     maxRequests="128"     useStatementNamespac…

在使用Eclipse 创建第一个 Servlet之后,并且配置好了tomcat,然后Run on server的之后,提示标题所示错误: 警告: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.jee.server:SecondServlet' did not find a matching property.     bing之后,有人提到如下操作方法: http://www.c…

Setting Up a Development Environment 搭建storm开发环境所需步骤: Download a Storm release , unpack it, and put the unpacked bin/ directory on your PATH.(下载storm的release版本, 解压,并且把bin/目录加到环境变量PATH里面去.) To be able to start and stop topologies on a remote cluster,…