我已经成功在 CentOS 上安装了 red5 服务器。也就是说，oflaDemo 的演示使用 prometheus.mp4 和 JWplayer 文件运行没有问题。但是当我像这样放置另一个 mp4 文件时：
http://content.bitsontherun.com/videos/nhYDGoyh-kNspJqnJ.mp4
播放器加载非常缓慢，仅显示几秒钟的视频。在 red5 日志文件中，我看到多个警告“编码后响应缓冲区为空”，如下所示。尝试了其他几个mp4文件，结果都一样。对 mp4 文件有特定要求吗？还是我错过了特定的视频解码器？还是red5内部的问题？欢迎任何提示！
2012-11-20 15:49:55,261 [Red5_Scheduler_Worker-2] 信息 o.red5.server.net.rtmp.RTMPHandler - 连接到：[WebScope@6f51b1b7 深度 = 1，路径 = '/default'，名称 = 'oflaDemo '] 2012-11-20 15:49:55,264 [Red5_Scheduler_Worker-2] 信息 org.red5.demos.oflaDemo.Application - W3C x-category:session x-event:connect c-ip:37.251.89.8 c-client-id: 0 2012-11-20 15:49:55,265 [Red5_Scheduler_Worker-2] 信息 org.red5.demos.oflaDemo.Application - oflaDemo appConnect 2012-11-20 15:49:55,360 [http-0.0.0.0-5080-exec-4] 信息 orsnrcodec.RTMPProtocolDecoder - 操作 createStream 2012-11-20 15:49:55,507 [Red5_Scheduler_Worker-4] 信息 o.red5.server.net.rtmp.RTMPHandler - 记住流上的客户端缓冲区：2000 2012-11-20 15:49:55,556 [http-0.0.0.0-5080-exec-2] 信息 orsnrcodec.RTMPProtocolDecoder - 动作播放 2012-11-20 15:49:56,052 [pool-5-thread-1] INFO org.red5.demos.oflaDemo.Application - W3C x-category:stream x-event:play c-ip:37.251.89.8 x-名称：29295add-1dcc-4d74-b5e1-c7cd34c2b5c1 2012-11-20 15:49:56,837 [Red5_Scheduler_Worker-1] 信息 org.red5.io.mp4.MP4Atom - Apple 标志？：appl 2012-11-20 15:49:56,867 [Red5_Scheduler_Worker-1] WARN org.red5.io.mp4.impl.MP4Reader - 跳过无效位置的视频帧 2012-11-20 15:49:57,531 [pool-5-thread-1] INFO org.red5.demos.oflaDemo.Application - W3C x-category:stream x-event:play c-ip:37.251.89.8 x- sname:29295add-1dcc-4d74-b5e1-c7cd34c2b5c1 x-name:mp4: 演示2.mp4 2012-11-20 15:50:34,376 [pool-5-thread-4] WARN orsnet.rtmpt.BaseRTMPTConnection - 编码后响应缓冲区为空 2012-11-20 15:50:34,398 [pool-5-thread-4] WARN orsnet.rtmpt.BaseRTMPTConnection - 编码后响应缓冲区为空 2012-11-20 15:50:34,410 [pool-5-thread-4] WARN orsnet.rtmpt.BaseRTMPTConnection - 编码后响应缓冲区为空 [ETC]