15976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org/* 25976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * libjingle 35976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * Copyright 2011 Google Inc. 45976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 55976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * Redistribution and use in source and binary forms, with or without 65976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * modification, are permitted provided that the following conditions are met: 75976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 85976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 1. Redistributions of source code must retain the above copyright notice, 95976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * this list of conditions and the following disclaimer. 105976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 2. Redistributions in binary form must reproduce the above copyright notice, 115976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * this list of conditions and the following disclaimer in the documentation 125976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * and/or other materials provided with the distribution. 135976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 3. The name of the author may not be used to endorse or promote products 145976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * derived from this software without specific prior written permission. 155976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 165976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 175976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 185976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 195976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 205976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 215976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 225976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 235976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 245976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 255976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 265976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org */ 275976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 285976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#ifndef TALK_MEDIA_BASE_RTPUTILS_H_ 295976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#define TALK_MEDIA_BASE_RTPUTILS_H_ 305976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 315976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#include "talk/base/byteorder.h" 325976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 335976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgnamespace cricket { 345976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 355976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgconst size_t kMinRtpPacketLen = 12; 365976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgconst size_t kMaxRtpPacketLen = 2048; 375976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgconst size_t kMinRtcpPacketLen = 4; 385976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 395976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgstruct RtpHeader { 405976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org int payload_type; 415976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org int seq_num; 425976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org uint32 timestamp; 435976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org uint32 ssrc; 445976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org}; 455976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 465976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgenum RtcpTypes { 475976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypeSR = 200, // Sender report payload type. 485976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypeRR = 201, // Receiver report payload type. 495976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypeSDES = 202, // SDES payload type. 505976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypeBye = 203, // BYE payload type. 515976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypeApp = 204, // APP payload type. 525976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypeRTPFB = 205, // Transport layer Feedback message payload type. 535976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org kRtcpTypePSFB = 206, // Payload-specific Feedback message payload type. 545976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org}; 555976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 565976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpVersion(const void* data, size_t len, int* version); 575976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpPayloadType(const void* data, size_t len, int* value); 585976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpSeqNum(const void* data, size_t len, int* value); 595976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpTimestamp(const void* data, size_t len, uint32* value); 605976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpSsrc(const void* data, size_t len, uint32* value); 615976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpHeaderLen(const void* data, size_t len, size_t* value); 625976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtcpType(const void* data, size_t len, int* value); 635976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtcpSsrc(const void* data, size_t len, uint32* value); 645976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool GetRtpHeader(const void* data, size_t len, RtpHeader* header); 655976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 665976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org// Assumes marker bit is 0. 675976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool SetRtpHeaderFlags( 685976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org void* data, size_t len, 695976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org bool padding, bool extension, int csrc_count); 705976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool SetRtpPayloadType(void* data, size_t len, int value); 715976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool SetRtpSeqNum(void* data, size_t len, int value); 725976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool SetRtpTimestamp(void* data, size_t len, uint32 value); 735976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool SetRtpSsrc(void* data, size_t len, uint32 value); 745976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org// Assumes version 2, no padding, no extensions, no csrcs. 755976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgbool SetRtpHeader(void* data, size_t len, const RtpHeader& header); 765976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 775976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org} // namespace cricket 785976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 795976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#endif // TALK_MEDIA_BASE_RTPUTILS_H_ 80