36a992b030
-Removed ssrc from tracks. -Updated PeerConnectionMessage parsing and serialization. BUG= TEST= Review URL: http://webrtc-codereview.appspot.com/239020 git-svn-id: http://webrtc.googlecode.com/svn/trunk@856 4adac7df-926f-26a2-2b94-8c16560cd09d
106 lines
4.1 KiB
C++
106 lines
4.1 KiB
C++
/*
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* libjingle
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* Copyright 2011, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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// This file contains structures for describing SSRCs from a media source such
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// as a MediaStreamTrack when it is sent across an RTP session. Multiple media
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// sources may be sent across the same RTP session, each of them will be
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// described by one StreamParams object
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// SsrcGroup is used to describe the relationship between the SSRCs that
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// are used for this media source.
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// E.x: Consider a source that is sent as 3 simulcast streams
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// Let the simulcast elements have SSRC 10, 20, 30.
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// Let each simulcast element use FEC and let the protection packets have
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// SSRC 11,21,31.
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// To describe this 4 SsrcGroups are needed,
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// StreamParams would then contain ssrc = {10,11,20,21,30,31} and
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// ssrc_groups = {{SIM,{10,20,30}, {FEC,{10,11}, {FEC, {20,21}, {FEC {30,31}}}
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// Please see RFC 5576.
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#ifndef TALK_SESSION_PHONE_STREAMPARAMS_H_
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#define TALK_SESSION_PHONE_STREAMPARAMS_H_
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#include <string>
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#include <vector>
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namespace cricket {
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struct SsrcGroup {
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SsrcGroup(const std::string& usage, const std::vector<uint32>& ssrcs)
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: semantics(usage), ssrcs(ssrcs) {
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}
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bool operator==(const SsrcGroup& other) const {
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return (semantics == other.semantics && ssrcs == other.ssrcs);
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}
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bool operator!=(const SsrcGroup &other) const {
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return !(*this == other);
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}
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std::string semantics; // e.g FIX, FEC, SIM.
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std::vector<uint32> ssrcs; // SSRCs of this type.
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};
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struct StreamParams {
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StreamParams(const std::string& name,
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const std::vector<uint32>& ssrcs,
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const std::vector<SsrcGroup>& ssrc_groups,
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const std::string& cname,
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const std::string& sync_label)
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: name(name),
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ssrcs(ssrcs),
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ssrc_groups(ssrc_groups),
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cname(cname),
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sync_label(sync_label) {
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}
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StreamParams(const std::string& name,
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uint32 ssrc,
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const std::string& cname,
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const std::string& sync_label)
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: name(name),
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cname(cname),
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sync_label(sync_label) {
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ssrcs.push_back(ssrc);
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}
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bool operator==(const StreamParams& other) const {
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return (name == other.name && ssrcs == other.ssrcs &&
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ssrc_groups == other.ssrc_groups && cname == other.cname &&
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sync_label == sync_label);
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}
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bool operator!=(const StreamParams &other) const {
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return !(*this == other);
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}
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std::string name; // Unique name of this source.
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std::vector<uint32> ssrcs; // All SSRCs for this source
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std::vector<SsrcGroup> ssrc_groups; // e.g. FID, FEC, SIM
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std::string cname; // RTCP CNAME
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std::string sync_label; // Friendly name of cname.
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};
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} // namespace cricket
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#endif // TALK_SESSION_PHONE_STREAMPARAMS_H_
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