一种H.264高清编码器的实现--《电视技术》2009年06期
一种H.264高清编码器的实现
【摘要】：介绍了一种H.264高清编码器的方案,描述了系统实现框图、主要芯片的特性,以及控制选单的主要功能。该产品可广泛应用于数字视频广播和IPTV系统。
【作者单位】：
【关键词】：
【分类号】：TN762【正文快照】：
1引言在同样的图像质量情况下,H.264标准的编码效率比MPEG-2提高了50%,比MPEG-4ASP提高了30%,相应地节约了至少30%～50%的网络带宽。在当今网络带宽越来越宝贵,用户对高清的需求又越来越强烈的情况下,采用H.264标准成为在有限带宽下满足用户需求的鱼和熊掌可兼得的方案[1-2]
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支持CAJ、PDF文件格式，仅支持PDF格式
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at org.apache.cocoon.environment.internal.EnvironmentChanger.endElement(EnvironmentStack.java:147)
at org.ponents.sax.XMLTeePipe.endElement(XMLTeePipe.java:93)
at org.apache.cocoon.xml.AbstractXMLPipe.endElement(AbstractXMLPipe.java:111)
at org.dspace.app.xmlui.wing.AbstractWingTransformer.endElement(AbstractWingTransformer.java:283)
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at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
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at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
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at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
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at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
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at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
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at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
at sun.reflect.GeneratedMethodAccessor398.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
at org.ponents.source.util.SourceUtil.toSAX(SourceUtil.java:111)
at org.ponents.source.util.SourceUtil.parse(SourceUtil.java:294)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
at sun.reflect.GeneratedMethodAccessor397.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy130.generate(Unknown Source)
at org.ponents.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:360)
at org.ponents.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:439)
at sun.reflect.GeneratedMethodAccessor202.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at com.sun.proxy.$Proxy116.process(Unknown Source)
at org.ponents.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
at org.ponents.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at org.ponents.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at org.ponents.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
at org.ponents.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at org.ponents.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
at org.ponents.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
at org.ponents.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
at org.ponents.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at org.ponents.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at org.ponents.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
at org.ponents.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at org.ponents.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
at org.ponents.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
at org.ponents.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at org.ponents.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at org.ponents.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at org.ponents.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
at org.ponents.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at org.ponents.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
at org.ponents.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
at org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351)
at org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169)
at org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468)
at org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443)
at org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy104.service(Unknown Source)
at org.dspace.springmvc.CocoonView.render(CocoonView.java:113)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.dspace.app.xmlui.cocoon.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.dspace.app.xmlui.cocoon.DSpaceCocoonServletFilter.doFilter(DSpaceCocoonServletFilter.java:274)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.dspace.app.xmlui.cocoon.servlet.multipart.DSpaceMultipartFilter.doFilter(DSpaceMultipartFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.dspace.rdf.negotiation.NegotiationFilter.doFilter(NegotiationFilter.java:50)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
copyright&&&&
copyright&&&&