FLV |RtmpSampleAccess # , onStatus code NetStream.Data.Start 7 onMetaData trackinfo timescale @> length @ language eng sampledescription sampletype avc1 timescale @Ո length A>X language eng sampledescription sampletype mp4a timescale @ length A^ language eng sampledescription sampletype rtp timescale @Ո length A= language eng sampledescription sampletype rtp audiochannels @ audiosamplerate @Ո videoframerate @> aacaot @ avclevel @* avcprofile @P audiocodecid mp4a videocodecid avc1 width @ height @v frameWidth @ frameHeight @v displayWidth @ displayHeight @v moovposition @D duration @Vg # , B gB