月份：2015年3月

centos yum 安装 ffmpeg2

文章来源：
http://www.vr4servers.com/ffmpeg2/

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You have to add the repository
rpm -Uvh http://dl.atrpms.net/el6-x86_64/atrpms/stable/atrpms-repo-6-7.el6.x86_64.rpm

yum install -y ffmpeg ffmpeg-devel

不用自己编译了

更简单的办法是下载编译好的
http://johnvansickle.com/ffmpeg/
centos试验可以用，更靠谱，yum版本的没法打字幕，没libass

字体参考
https://gist.github.com/sxyx2008/9d5572a25063790db5fb
添加字幕

有的时候你需要给视频加一个字幕(subtitle)，使用ffmpeg也可以做。一般我们见到的字幕以srt字幕为主，在ffmpeg里需要首先将srt字幕转化为ass字幕，然后就可以集成到视频中了(不是单独的字幕流，而是直接改写视频流)。

ffmpeg -i my_subtitle.srt my_subtitle.ass
ffmpeg -i inputfile.mp4 -vf ass=my_subtitle.ass outputfile.mp4

但是值得注意的是：

my_subtitle.srt需要使用UTF8编码，老外不会注意到这一点，但是中文这是必须要考虑的；

将字幕直接写入视频流需要将每个字符渲染到画面上，因此有一个字体的问题，在ass文件中会指定一个缺省字体，例如Arial，但是我们首先需要让ffmpeg能找到字体文件，不然文字的渲染就无从谈起了。ffmpeg使用了fontconfig来设置字体配置。你需要首先设置一下FONTCONFIG_PATH或者FONTCONFIG_FILE环境变量，不然fontconfig是无法找到配置文件的，这一点请参看这篇文章，如果你设置的是FONTCONFIG_PATH，那把配置文件保存为%FONTCONFIG_PATH%/font.conf即可，然后你可以在font.conf文件中配置字体文件的路径之类的。

Windows下为fontconfig设置如下的环境变量

FC_CONFIG_DIR=C:\ffmpeg
FONTCONFIG_FILE=font.conf
FONTCONFIG_PATH=C:\ffmpeg
PATH=C:\ffmpeg\bin;%PATH%

下面是一个简单的Windows版font.conf文件。

<?xml version="1.0"?>
<fontconfig>

<dir>C:\Windows\Fonts</dir>
<cache>C:\WINDOWS\Cache\Fontcache</cache>
<cachedir>C:\WINDOWS\Cache\Fontcache</cachedir>
<match target="pattern">
<test qual="any" name="family"><string>mono</string></test>
<edit name="family" mode="assign"><string>monospace</string></edit>
</match>

<match target="pattern">
<test qual="all" name="family" compare="not_eq"><string>sans-serif</string></test>
<test qual="all" name="family" compare="not_eq"><string>serif</string></test>
<test qual="all" name="family" compare="not_eq"><string>monospace</string></test>
<edit name="family" mode="append_last"><string>sans-serif</string></edit>
</match>

<alias>
<family>Times</family>
<prefer><family>Times New Roman</family></prefer>
<default><family>serif</family></default>
</alias>
<alias>
<family>Helvetica</family>
<prefer><family>Arial</family></prefer>
<default><family>sans</family></default>
</alias>
<alias>
<family>Courier</family>
<prefer><family>Courier New</family></prefer>
<default><family>monospace</family></default>
</alias>
<alias>
<family>serif</family>
<prefer><family>Times New Roman</family></prefer>
</alias>
<alias>
<family>sans</family>
<prefer><family>Arial</family></prefer>
</alias>
<alias>
<family>monospace</family>
<prefer><family>Andale Mono</family></prefer>
</alias>
<match target="pattern">
<test name="family" compare="eq">
<string>Courier New</string>
</test>
<edit name="family" mode="prepend">
<string>monospace</string>
</edit>
</match>
<match target="pattern">
<test name="family" compare="eq">
<string>Courier</string>
</test>
<edit name="family" mode="prepend">
<string>monospace</string>
</edit>
</match>

</fontconfig>

Entity Bean 需要实现 Serializable 否则 。。

服务端异常
23:53:29,131 ERROR [org.jboss.as.ejb3] (Remoting “wslhkpc” task-7) JBAS014248: 消息 Channel ID 3367520a (inbound) of Remoting connection 34916e44 to /127.0.0.1:62015 里的频道 org.jboss.remoting3.remote.InboundMessage$3@345c347c 上的异常: java.io.IOException: Stream is closed
at org.xnio.streams.BufferPipeOutputStream.closed(BufferPipeOutputStream.java:62) [xnio-api-3.0.10.GA-redhat-1.jar:3.0.10.GA-redhat-1]
at org.xnio.streams.BufferPipeOutputStream.checkClosed(BufferPipeOutputStream.java:68) [xnio-api-3.0.10.GA-redhat-1.jar:3.0.10.GA-redhat-1]
at org.xnio.streams.BufferPipeOutputStream.write(BufferPipeOutputStream.java:94) [xnio-api-3.0.10.GA-redhat-1.jar:3.0.10.GA-redhat-1]
at org.jboss.remoting3.remote.OutboundMessage.write(OutboundMessage.java:270) [jboss-remoting-3.3.1.Final-redhat-1.jar:3.3.1.Final-redhat-1]
at java.io.DataOutputStream.write(DataOutputStream.java:107) [rt.jar:1.8.0_11]
at org.jboss.as.ejb3.remote.protocol.AbstractMessageHandler$1.write(AbstractMessageHandler.java:217)
at org.jboss.marshalling.OutputStreamByteOutput.write(OutputStreamByteOutput.java:52) [jboss-marshalling-1.4.6.Final-redhat-1.jar:1.4.6.Final-redhat-1]
at org.jboss.marshalling.SimpleDataOutput.shallowFlush(SimpleDataOutput.java:353) [jboss-marshalling-1.4.6.Final-redhat-1.jar:1.4.6.Final-redhat-1]
at org.jboss.marshalling.river.RiverMarshaller.writeString(RiverMarshaller.java:1509)
at org.jboss.marshalling.river.RiverMarshaller.writeNewSerializableClass(RiverMarshaller.java:1415)
at org.jboss.marshalling.river.RiverMarshaller.writeNewClass(RiverMarshaller.java:1345)
at org.jboss.marshalling.river.RiverMarshaller.writeClass(RiverMarshaller.java:1199)
at org.jboss.marshalling.river.RiverMarshaller.writeNewSerializableClass(RiverMarshaller.java:1438)
at org.jboss.marshalling.river.RiverMarshaller.writeSerializableClass(RiverMarshaller.java:1398)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:884)
at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:58) [jboss-marshalling-1.4.6.Final-redhat-1.jar:1.4.6.Final-redhat-1]
at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:111) [jboss-marshalling-1.4.6.Final-redhat-1.jar:1.4.6.Final-redhat-1]
at org.jboss.as.ejb3.remote.protocol.AbstractMessageHandler.writeException(AbstractMessageHandler.java:112)
at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.processMessage(MethodInvocationMessageHandler.java:166)
at org.jboss.as.ejb3.remote.protocol.versionone.VersionOneProtocolChannelReceiver.handleMessage(VersionOneProtocolChannelReceiver.java:160)
at org.jboss.remoting3.remote.RemoteConnectionChannel$5.run(RemoteConnectionChannel.java:452) [jboss-remoting-3.3.1.Final-redhat-1.jar:3.3.1.Final-redhat-1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_11]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_11]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_11]
Caused by: an exception which occurred:
in object java.io.EOFException@5a234c92

客户端异常
Exception in thread “main” java.lang.IllegalStateException: EJBCLIENT000025: No EJB receiver available for handling [appName:, moduleName:TestEJB, distinctName:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@69a3d1d
at org.jboss.ejb.client.EJBClientContext.requireEJBReceiver(EJBClientContext.java:735)
at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:116)
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:183)
at org.jboss.ejb.client.EJBClientInvocationContext.retryRequest(EJBClientInvocationContext.java:208)
at org.jboss.ejb.client.EJBInvocationHandler.sendRequestWithPossibleRetries(EJBInvocationHandler.java:256)
at org.jboss.ejb.client.EJBInvocationHandler.sendRequestWithPossibleRetries(EJBInvocationHandler.java:265)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:198)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:181)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:144)
at com.sun.proxy.$Proxy3.createCabin(Unknown Source)
at client.ClientTest.date(ClientTest.java:155)
at client.ClientTest.main(ClientTest.java:28)

————-
出现原因：Entity Bean 必须实现 Serializable

jboss eap 6.3 mysql数据源错误提示 JBAS010441

配置mysql数据源出现错误提示：
failure description: “JBAS010441: Failed to load module for driver
中文日志是无法加载模块

环境是jboss eap 6.3

网上找了n种答案，虽然不是我的问题，还是列举一下
答案1，说是版本问题，要mysql-5.1.30一下的
答案2，配置问题 eap的配置跟老版本的不太一样，得用modules
反正大家配置都差不多怎么都出不来，

我这里最后是因为这个：

看jboss自带的module.xml木有这行，去掉就好使了！！

ejb3 javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter,

ejb里面报异常 javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter,

其实就是个很简单的错误，需要引用jboss-client.jar 重点是合适的版本！
网上随便下了个jboss-client4.jar的包，一直报这个异常，其实就是缺少类

从jboss里复制一个新版本出来就好用了

mq5.9 运行异常

运行直接异常

java.lang.IllegalStateException: LifecycleProcessor not initialized – call ‘refresh’ before invoking lifecycle methods via the context:

百思不得其解，直到看到这篇
http://zhidao.baidu.com/question/367406581580356204.html

说是计算机名不不能有-和下划线_，发现这台电脑确实有下划线，觉得不会这么邪门吧。
改后重启，好了。。。。。给跪了