ijkplayer 解决rtmp 延迟长的问题，达到秒开的结果

ijkplayer 播放rtmp等 实时性要求很高的 流媒体时候，会出现10S左右的延迟，原因是因为加了缓冲区处理，可以把其缓存设置变小，达到实时的效果。如下代码 

IjkVideoView.java

//YYH delete start //ijkMediaPlayer.setOption(IjkMediaPlayer.OPT_CATEGORY_PLAYER, "framedrop", 48); //YYH delete end ijkMediaPlayer.setOption(IjkMediaPlayer.OPT_CATEGORY_PLAYER, "start-on-prepared", 0); ijkMediaPlayer.setOption(IjkMediaPlayer.OPT_CATEGORY_FORMAT, "http-detect-range-support", 0); // ijkMediaPlayer.setOption(IjkMediaPlayer.OPT_CATEGORY_CODEC, "skip_loop_filter", 48); ijkMediaPlayer.setOption(IjkMediaPlayer.OPT_CATEGORY_CODEC, "skip_loop_filter", 8); Log.i(TAG, "yyh debug .... set ok..."); //YYH add ijkMediaPlayer.setOption(1, "analyzemaxduration", 100L); ijkMediaPlayer.setOption(1, "probesize", 10240L); ijkMediaPlayer.setOption(1, "flush_packets", 1L); ijkMediaPlayer.setOption(4, "packet-buffering", 0L); ijkMediaPlayer.setOption(4, "framedrop", 1L); //YYH end 如添加红色所示部分