sdp相关的代码移动到主目录

src/Extension/AAC.cpp

@@ -205,7 +205,7 @@ public:
         if (bitrate) {
             _printer << "b=AS:" << bitrate << "\r\n";
         }
-        _printer << "a=rtpmap:" << payload_type << " MPEG4-GENERIC/" << sample_rate << "/" << channels << "\r\n";
+        _printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << sample_rate << "/" << channels << "\r\n";
 
         string configStr;
         char buf[4] = {0};

src/Extension/Frame.cpp

@@ -11,7 +11,7 @@
 #include "Frame.h"
 #include "H264.h"
 #include "H265.h"
-
+#include "Common/Parser.h"
 using namespace std;
 using namespace toolkit;
 
@@ -106,22 +106,10 @@ Frame::Ptr Frame::getCacheAbleFrame(const Frame::Ptr &frame){
     return std::make_shared<FrameCacheAble>(frame);
 }
 
-#define SWITCH_CASE(codec_id) case codec_id : return #codec_id
-const char *getCodecName(CodecId codecId) {
-    switch (codecId) {
-        SWITCH_CASE(CodecH264);
-        SWITCH_CASE(CodecH265);
-        SWITCH_CASE(CodecAAC);
-        SWITCH_CASE(CodecG711A);
-        SWITCH_CASE(CodecG711U);
-        SWITCH_CASE(CodecOpus);
-        SWITCH_CASE(CodecL16);
-        default : return "unknown codec";
-    }
-}
-
 TrackType getTrackType(CodecId codecId){
     switch (codecId){
+        case CodecVP8:
+        case CodecVP9:
         case CodecH264:
         case CodecH265: return TrackVideo;
         case CodecAAC:
@@ -133,6 +121,58 @@ TrackType getTrackType(CodecId codecId){
     }
 }
 
+const char* getCodecName(CodecId codec){
+    switch (codec) {
+        case CodecH264 : return "H264";
+        case CodecH265 : return "H265";
+        case CodecAAC : return "mpeg4-generic";
+        case CodecG711A : return "PCMA";
+        case CodecG711U : return "PCMU";
+        case CodecOpus : return "opus";
+        case CodecVP8 : return "VP8";
+        case CodecVP9 : return "VP9";
+        case CodecL16 : return "L16";
+        default: return "invalid";
+    }
+}
+
+static map<string, CodecId, StrCaseCompare> codec_map = {
+        {"H264",          CodecH264},
+        {"H265",          CodecH265},
+        {"mpeg4-generic", CodecAAC},
+        {"PCMA",          CodecG711A},
+        {"PCMU",          CodecG711U},
+        {"opus",          CodecOpus},
+        {"VP8",           CodecVP8},
+        {"VP9",           CodecVP9},
+        {"L16",           CodecL16}
+};
+
+CodecId getCodecId(const string &str){
+    auto it = codec_map.find(str);
+    return it == codec_map.end() ? CodecInvalid : it->second;
+}
+
+static map<string, TrackType, StrCaseCompare> track_str_map = {
+        {"video",       TrackVideo},
+        {"audio",       TrackAudio},
+        {"application", TrackApplication}
+};
+
+TrackType getTrackType(const string &str) {
+    auto it = track_str_map.find(str);
+    return it == track_str_map.end() ? TrackInvalid : it->second;
+}
+
+const char* getTrackString(TrackType type){
+    switch (type) {
+        case TrackVideo : return "video";
+        case TrackAudio : return "audio";
+        case TrackApplication : return "application";
+        default: return "invalid";
+    }
+}
+
 const char *CodecInfo::getCodecName() {
     return mediakit::getCodecName(getCodecId());
 }

src/Extension/Frame.h

@@ -30,6 +30,8 @@ typedef enum {
     CodecG711U,
     CodecOpus,
     CodecL16,
+    CodecVP8,
+    CodecVP9,
     CodecMax = 0x7FFF
 } CodecId;
 
@@ -43,6 +45,23 @@ typedef enum {
 } TrackType;
 
 /**
+ * 字符串转媒体类型转
+ */
+TrackType getTrackType(const string &str);
+
+/**
+ * 媒体类型转字符串
+ */
+const char* getTrackString(TrackType type);
+
+/**
+ * 根据SDP中描述获取codec_id
+ * @param str
+ * @return
+ */
+CodecId getCodecId(const string &str);
+
+/**
  * 获取编码器名称
  */
 const char *getCodecName(CodecId codecId);

src/Extension/G711.cpp

@@ -33,7 +33,7 @@ public:
         if (bitrate) {
             _printer << "b=AS:" << bitrate << "\r\n";
         }
-        _printer << "a=rtpmap:" << payload_type << (codecId == CodecG711A ? " PCMA/" : " PCMU/") << sample_rate  << "/" << channels << "\r\n";
+        _printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << sample_rate  << "/" << channels << "\r\n";
         _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
     }
 

src/Extension/H264.cpp

@@ -235,7 +235,7 @@ public:
         if (bitrate) {
             _printer << "b=AS:" << bitrate << "\r\n";
         }
-        _printer << "a=rtpmap:" << payload_type << " H264/" << 90000 << "\r\n";
+        _printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << 90000 << "\r\n";
         _printer << "a=fmtp:" << payload_type << " packetization-mode=1; profile-level-id=";
 
         char strTemp[1024];

src/Extension/H265.cpp

@@ -252,7 +252,7 @@ public:
         if (bitrate) {
             _printer << "b=AS:" << bitrate << "\r\n";
         }
-        _printer << "a=rtpmap:" << payload_type << " H265/" << 90000 << "\r\n";
+        _printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << 90000 << "\r\n";
         _printer << "a=fmtp:" << payload_type << " ";
         _printer << "sprop-vps=";
         _printer << encodeBase64(strVPS) << "; ";

src/Extension/L16.cpp

@@ -33,7 +33,7 @@ public:
         if (bitrate) {
             _printer << "b=AS:" << bitrate << "\r\n";
         }
-        _printer << "a=rtpmap:" << payload_type << " L16/" << sample_rate  << "/" << channels << "\r\n";
+        _printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << sample_rate  << "/" << channels << "\r\n";
         _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
     }
 

src/Extension/Opus.cpp

@@ -31,7 +31,7 @@ public:
         if (bitrate) {
             _printer << "b=AS:" << bitrate << "\r\n";
         }
-        _printer << "a=rtpmap:" << payload_type << " opus/" << sample_rate  << "/" << channels << "\r\n";
+        _printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << sample_rate  << "/" << channels << "\r\n";
         _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
     }
 

webrtc/Sdp.cpp

@@ -93,26 +93,6 @@ static bool registerAllItem(){
     return true;
 }
 
-static map<string, TrackType, StrCaseCompare> track_str_map = {
-        {"video",       TrackVideo},
-        {"audio",       TrackAudio},
-        {"application", TrackApplication}
-};
-
-TrackType getTrackType(const string &str) {
-    auto it = track_str_map.find(str);
-    return it == track_str_map.end() ? TrackInvalid : it->second;
-}
-
-const char* getTrackString(TrackType type){
-    switch (type) {
-        case TrackVideo : return "video";
-        case TrackAudio : return "audio";
-        case TrackApplication : return "application";
-        default: return "invalid";
-    }
-}
-
 static map<string, DtlsRole, StrCaseCompare> dtls_role_map = {
         {"active",  DtlsRole::active},
         {"passive", DtlsRole::passive},
@@ -1059,6 +1039,18 @@ const RtcCodecPlan *RtcMedia::getPlan(const char *codec) const{
     return nullptr;
 }
 
+const RtcCodecPlan *RtcMedia::getRelatedRtxPlan(uint8_t pt) const{
+    for (auto &item : plan) {
+        if (strcasecmp(item.codec.data(), "rtx") == 0) {
+            auto apt = atoi(item.getFmtp("apt").data());
+            if (pt == apt) {
+                return &item;
+            }
+        }
+    }
+    return nullptr;
+}
+
 void RtcMedia::checkValid() const{
     CHECK(type != TrackInvalid);
     CHECK(!mid.empty());
@@ -1071,9 +1063,6 @@ void RtcMedia::checkValid() const{
     if (rtx_plan) {
         //开启rtx后必须指定rtx_ssrc
         CHECK(!rtx_ssrc.empty() || !send_rtp);
-        auto apt = atoi(rtx_plan->getFmtp("apt").data());
-        //开启rtx后必须指定其关联的其他的plan
-        CHECK(getPlan(apt));
     }
 }
 

webrtc/Sdp.h

@@ -72,8 +72,6 @@ enum class SdpType {
     answer
 };
 
-TrackType getTrackType(const string &str);
-const char* getTrackString(TrackType type);
 DtlsRole getDtlsRole(const string &str);
 const char* getDtlsRoleString(DtlsRole role);
 RtpDirection getRtpDirection(const string &str);
@@ -591,6 +589,7 @@ public:
     void checkValid() const;
     const RtcCodecPlan *getPlan(uint8_t pt) const;
     const RtcCodecPlan *getPlan(const char *codec) const;
+    const RtcCodecPlan *getRelatedRtxPlan(uint8_t pt) const;
 };
 
 class RtcSession{