1 /* 2 * 3 * BlueZ - Bluetooth protocol stack for Linux 4 * 5 * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org> 6 * 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with this library; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 21 * 22 */ 23 24 #if __BYTE_ORDER == __LITTLE_ENDIAN 25 26 struct rtp_header { 27 unsigned cc:4; 28 unsigned x:1; 29 unsigned p:1; 30 unsigned v:2; 31 32 unsigned pt:7; 33 unsigned m:1; 34 35 uint16_t sequence_number; 36 uint32_t timestamp; 37 uint32_t ssrc; 38 uint32_t csrc[0]; 39 } __attribute__ ((packed)); 40 41 struct rtp_payload { 42 unsigned frame_count:4; 43 unsigned rfa0:1; 44 unsigned is_last_fragment:1; 45 unsigned is_first_fragment:1; 46 unsigned is_fragmented:1; 47 } __attribute__ ((packed)); 48 49 #elif __BYTE_ORDER == __BIG_ENDIAN 50 51 struct rtp_header { 52 unsigned v:2; 53 unsigned p:1; 54 unsigned x:1; 55 unsigned cc:4; 56 57 unsigned m:1; 58 unsigned pt:7; 59 60 uint16_t sequence_number; 61 uint32_t timestamp; 62 uint32_t ssrc; 63 uint32_t csrc[0]; 64 } __attribute__ ((packed)); 65 66 struct rtp_payload { 67 unsigned is_fragmented:1; 68 unsigned is_first_fragment:1; 69 unsigned is_last_fragment:1; 70 unsigned rfa0:1; 71 unsigned frame_count:4; 72 } __attribute__ ((packed)); 73 74 #else 75 #error "Unknown byte order" 76 #endif 77