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https://github.com/ZLMediaKit/ZLMediaKit.git
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添加twcc相关api
This commit is contained in:
xia-chu
parent
ac55ae79fb
commit
9396270ce2
110
webrtc/Sdp.cpp
110
webrtc/Sdp.cpp
@ -921,7 +921,7 @@ void RtcSession::loadFrom(const string &str, bool check) {
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}
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for (auto rtpfb_it = rtcpfb_map.find(pt);
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rtpfb_it != rtcpfb_map.end() && rtpfb_it->second.pt == pt; ++rtpfb_it) {
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plan.rtcp_fb.emplace_back(rtpfb_it->second.rtcp_type);
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plan.rtcp_fb.emplace(rtpfb_it->second.rtcp_type);
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}
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}
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}
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@ -1241,6 +1241,20 @@ const RtcMedia *RtcSession::getMedia(TrackType type) const{
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return nullptr;
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}
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static string const kTWCCRtcpFb = "transport-cc";
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static string const kTWCCExtMap = "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01";
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void RtcConfigure::RtcTrackConfigure::enableTWCC(bool enable){
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if (!enable) {
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rtcp_fb.erase(kTWCCRtcpFb);
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extmap.erase(kTWCCExtMap);
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} else {
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rtcp_fb.emplace(kTWCCRtcpFb);
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extmap.emplace(kTWCCExtMap);
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}
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}
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void RtcConfigure::RtcTrackConfigure::setDefaultSetting(TrackType type){
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enable = true;
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rtcp_mux = true;
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@ -1256,30 +1270,34 @@ void RtcConfigure::RtcTrackConfigure::setDefaultSetting(TrackType type){
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case TrackAudio: {
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//此处调整偏好的编码格式优先级
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preferred_codec = {CodecAAC, CodecG711U, CodecG711A, CodecOpus};
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rtcp_fb = {"transport-cc"};
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extmap = {"1 urn:ietf:params:rtp-hdrext:ssrc-audio-level",
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"2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time",
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"3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01",
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"4 urn:ietf:params:rtp-hdrext:sdes:mid",
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"5 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id",
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"6 urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id"};
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rtcp_fb = {kTWCCRtcpFb};
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extmap = {
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kTWCCExtMap,
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"urn:ietf:params:rtp-hdrext:ssrc-audio-level",
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"http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time",
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"urn:ietf:params:rtp-hdrext:sdes:mid",
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"urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id",
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"urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id"
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};
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break;
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}
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case TrackVideo: {
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//此处调整偏好的编码格式优先级
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preferred_codec = {CodecH264, CodecH265};
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rtcp_fb = {"nack", "ccm fir", "nack pli", "goog-remb", "transport-cc"};
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extmap = {"14 urn:ietf:params:rtp-hdrext:toffset",
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"2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time",
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"13 urn:3gpp:video-orientation",
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"3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01",
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"12 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay",
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"11 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type",
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"7 http://www.webrtc.org/experiments/rtp-hdrext/video-timing",
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"8 http://www.webrtc.org/experiments/rtp-hdrext/color-space",
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"4 urn:ietf:params:rtp-hdrext:sdes:mid",
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"5 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id",
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"6 urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id"};
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rtcp_fb = {kTWCCRtcpFb, "nack", "ccm fir", "nack pli", "goog-remb"};
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extmap = {
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kTWCCExtMap,
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"urn:ietf:params:rtp-hdrext:toffset",
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"http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time",
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"urn:3gpp:video-orientation",
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"http://www.webrtc.org/experiments/rtp-hdrext/playout-delay",
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"http://www.webrtc.org/experiments/rtp-hdrext/video-content-type",
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"http://www.webrtc.org/experiments/rtp-hdrext/video-timing",
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"http://www.webrtc.org/experiments/rtp-hdrext/color-space",
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"urn:ietf:params:rtp-hdrext:sdes:mid",
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"urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id",
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"urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id"
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};
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break;
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}
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case TrackApplication: {
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@ -1333,6 +1351,29 @@ void RtcConfigure::addCandidate(const SdpAttrCandidate &candidate, TrackType typ
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}
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}
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void RtcConfigure::enableTWCC(bool enable, TrackType type){
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switch (type) {
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case TrackAudio: {
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audio.enableTWCC(enable);
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break;
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}
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case TrackVideo: {
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video.enableTWCC(enable);
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break;
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}
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case TrackApplication: {
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application.enableTWCC(enable);
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break;
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}
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default: {
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audio.enableTWCC(enable);
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video.enableTWCC(enable);
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application.enableTWCC(enable);
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break;
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}
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}
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}
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shared_ptr<RtcSession> RtcConfigure::createAnswer(const RtcSession &offer){
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shared_ptr<RtcSession> ret = std::make_shared<RtcSession>();
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ret->version = offer.version;
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@ -1479,35 +1520,22 @@ RETRY:
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}
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}
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//这是我们支持的扩展
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unordered_set<string> extmap_set;
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for (auto &ext : configure.extmap) {
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SdpAttrExtmap ext_cfg;
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ext_cfg.parse(ext);
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extmap_set.emplace(ext_cfg.ext);
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}
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//对方和我方都支持的扩展，那么我们都支持
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//对方和我方都支持的扩展，那么我们才支持
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for (auto &ext : offer_media.extmap) {
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if (extmap_set.find(ext.ext) != extmap_set.end()) {
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if (configure.extmap.find(ext.ext) != configure.extmap.end()) {
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answer_media.extmap.emplace_back(ext);
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}
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}
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//我们支持的rtcp类型
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unordered_set<string> rtcp_fb_set;
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for (auto &fp : configure.rtcp_fb) {
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rtcp_fb_set.emplace(fp);
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}
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vector<string> offer_rtcp_fb;
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auto &rtcp_fb_ref = answer_media.plan[0].rtcp_fb;
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rtcp_fb_ref.clear();
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//对方和我方都支持的rtcpfb，那么我们才支持
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for (auto &fp : offer_plan_ptr->rtcp_fb) {
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if (rtcp_fb_set.find(fp) != rtcp_fb_set.end()) {
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if (configure.rtcp_fb.find(fp) != configure.rtcp_fb.end()) {
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//对方该rtcp被我们支持
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offer_rtcp_fb.emplace_back(fp);
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rtcp_fb_ref.emplace(fp);
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}
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}
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//修改为我们支持的rtcp-fb类型
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answer_media.plan[0].rtcp_fb.swap(offer_rtcp_fb);
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ret->media.emplace_back(answer_media);
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return;
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}
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@ -591,7 +591,7 @@ public:
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//音频时有效
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uint32_t channel = 0;
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//rtcp反馈
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vector<string> rtcp_fb;
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set<string> rtcp_fb;
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map<string/*key*/, string/*value*/, StrCaseCompare> fmtp;
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string getFmtp(const char *key) const;
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@ -693,12 +693,13 @@ public:
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RtpDirection direction{RtpDirection::invalid};
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SdpAttrFingerprint fingerprint;
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vector<string> rtcp_fb;
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set<string> rtcp_fb;
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set<string> extmap;
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vector<CodecId> preferred_codec;
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vector<string> extmap;
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vector<SdpAttrCandidate> candidate;
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void setDefaultSetting(TrackType type);
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void enableTWCC(bool enable = true);
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};
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RtcTrackConfigure video;
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@ -715,6 +716,8 @@ public:
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void setPlayRtspInfo(const string &sdp);
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void enableTWCC(bool enable = true, TrackType type = TrackInvalid);
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private:
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void matchMedia(shared_ptr<RtcSession> &ret, TrackType type, const vector<RtcMedia> &medias, const RtcTrackConfigure &configure);
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bool onCheckCodecProfile(const RtcCodecPlan &plan, CodecId codec);
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