RTP AAC Stream problem

[Jefferson]

I got a RTP stream, its format is AAC.

Bitstream content list below:
000000ceh: 80 E1 C9 91 70 54 35 2F CF 5D DD 17 00 10 05 D8 ;
000000deh: 21 17 C9 04 20 01 49 D6 42 12 45 A1 60 AA 0C 82 ;
000000eeh: 1D 13 DB 59 E3 4C F8 E6 6A B1 E3 DB 9F 3D F9 DE;
000000feh:  B5 59 0B D0 B0 42 13 2A C5 29 DF EF 43 44 C7 F2 ;?
0000010eh: BC 8E 4C A9 CF 27 FF 07 E2 67 39 75 91 1D 81 CC ;?
0000011eh: 56 4B BE B8 04 45 C0 58 9F 77 C5 2D 42 91 AC 8A ;
0000012eh: 36 B1 E9 29 86 58 FA 9F DD C5 BD E6 D0 06 48 27 ;
0000013eh: E8 A1 4A 84 B2 30 AC 3A 17 0E 85 C4 68 51 78 74 ;
0000014eh: 8F DF AC E1 F3 2D 1D 51 BA E3 7A E7 CE F9 E3 6E ;
0000015eh: 2A EF 80 A2 24 84 A8 A6 FA 9F A1 9D 44 29 8A B1 ; ?
0000016eh: B2 57 1D 5A 69 88 FC 8F 66 67 9F C3 F4 14 E7 BA ; 0000017eh: 27 D8 7B 96 D2 79 EF 77 19 F4 94 B3 68 E6 A1 9D ;
0000018eh: AC A0 AE 79 C5 14 DE 74 5C 99 E0                ;

I know first 12bytes is RTP Header.
But what kind of the last content should I send to AAC Decoder.

Thanks for any reply.

[IvanR]

It is described in RFC 3640.  Please read it, there is description of RTP Payload Format for Transport of MPEG-4 Elementary Streams. Reading it you understand what part of data you should extract.