vlc rtsp请求IPC各种音频时的sdp

AAC sdp: "v=0\r\n o=- 1592493959551674 1592493959551674 IN IP4 192.168.12.179\r\n s=Media Presentation\r\ne=NONE\r\nb=AS:5100\r\nt=0 0\r\n a=control:r