完善rtcp的定义

37096f8e · xiongziliang · 29c8c9bf · 37096f8e · 37096f8e · 37096f8e
Commit 37096f8e authored Apr 13, 2021 by xiongziliang
--- a/src/Rtcp/Rtcp.cpp
+++ b/src/Rtcp/Rtcp.cpp
@@ -38,7 +38,7 @@ const char *psfbTypeToStr(PSFBType type) {
 #define SWITCH_CASE(key, value) case PSFBType::key :  return #value "(" #key ")";
        PSFB_TYPE_MAP(SWITCH_CASE)
 #undef SWITCH_CASE
-        default: return "unknown payload-specific fb message (rfc4585) type";
+        default: return "unknown payload-specific fb message fmt type";
    }
 }
@@ -385,7 +385,7 @@ string SdesItem::dumpString() const{
    printer << "ssrc:" << ssrc << "\r\n";
    printer << "type:" << sdesTypeToStr((SdesType) type) << "\r\n";
    printer << "length:" << (int) length << "\r\n";
-    printer << "text:" << (length ? string(&text, length) : "") << "\r\n";
+    printer << "text:" << (length ? string(text, length) : "") << "\r\n";
    return std::move(printer);
 }
@@ -403,7 +403,7 @@ std::shared_ptr<RtcpSdes> RtcpSdes::create(const std::initializer_list<string> &
    for (auto &text : item_text) {
        item_ptr->length = (0xFF & text.size());
        //确保赋值\0为RTCP_SDES_END
-        memcpy(&(item_ptr->text), text.data(), item_ptr->length + 1);
+        memcpy(item_ptr->text, text.data(), item_ptr->length + 1);
        item_ptr = (SdesItem *) ((char *) item_ptr + item_ptr->totalBytes());
    }
@@ -555,7 +555,7 @@ void RtcpBye::net2Host(size_t size) {
    }
 }
-#if 0
+#if 1
 #include "Util/onceToken.h"
 static toolkit::onceToken token([](){

--- a/src/Rtcp/Rtcp.h
+++ b/src/Rtcp/Rtcp.h
@@ -25,8 +25,7 @@ namespace mediakit {
 #pragma pack(push, 1)
 #endif // defined(_WIN32)
-//https://datatracker.ietf.org/doc/rfc3550
+//http://www.networksorcery.com/enp/protocol/rtcp.htm
 #define RTCP_PT_MAP(XX) \
        XX(RTCP_FIR, 192) \
        XX(RTCP_NACK, 193) \
@@ -44,6 +43,7 @@ namespace mediakit {
        XX(RTCP_RSI, 209) \
        XX(RTCP_TOKEN, 210)
+//https://tools.ietf.org/html/rfc3550#section-6.5
 #define SDES_TYPE_MAP(XX) \
        XX(RTCP_SDES_END, 0) \
        XX(RTCP_SDES_CNAME, 1) \
@@ -69,19 +69,49 @@ namespace mediakit {
 //      1:     Picture Loss Indication (PLI)
 //      2:     Slice Loss Indication (SLI)
 //      3:     Reference Picture Selection Indication (RPSI)
-//      4-14:  unassigned
+//      4:     FIR https://tools.ietf.org/html/rfc5104#section-4.3.1.1
-//      15:    Application layer FB (AFB) message
+//      5:     TSTR https://tools.ietf.org/html/rfc5104#section-4.3.2.1
+//      6:     TSTN https://tools.ietf.org/html/rfc5104#section-4.3.2.1
+//      7:     VBCM https://tools.ietf.org/html/rfc5104#section-4.3.4.1
+//      8-14:  unassigned
+//      15:    REMB / Application layer FB (AFB) message, https://tools.ietf.org/html/draft-alvestrand-rmcat-remb-03
 //      16-30: unassigned
 //      31:    reserved for future expansion of the sequence number space
 #define PSFB_TYPE_MAP(XX) \
        XX(RTCP_PSFB_PLI, 1) \
        XX(RTCP_PSFB_SLI, 2) \
        XX(RTCP_PSFB_RPSI, 3) \
        XX(RTCP_PSFB_FIR, 4) \
-        XX(RTCP_PSFB_TSTR, 5) \
+        XX(RTCP_PSFB_TSTR, 5)\
+        XX(RTCP_PSFB_TSTN, 6)\
+        XX(RTCP_PSFB_VBCM, 7) \
        XX(RTCP_PSFB_AFB, 15)
+//https://tools.ietf.org/html/rfc4585#section-6.2
+//6.2.   Transport Layer Feedback Messages
+//
+//   Transport layer FB messages are identified by the value RTPFB as RTCP
+//   message type.
+//
+//   A single general purpose transport layer FB message is defined in
+//   this document: Generic NACK.  It is identified by means of the FMT
+//   parameter as follows:
+//
+//   0:     unassigned
+//   1:     Generic NACK
+//   2:     reserved https://tools.ietf.org/html/rfc5104#section-4.2
+//   3:     TMMBR https://tools.ietf.org/html/rfc5104#section-4.2.1.1
+//   4:     TMMBN https://tools.ietf.org/html/rfc5104#section-4.2.2.1
+//   5-14:  unassigned
+//   15     transport-cc https://tools.ietf.org/html/draft-holmer-rmcat-transport-wide-cc-extensions-01
+//   16-30: unassigned
+//   31:    reserved for future expansion of the identifier number space
+#define RTPFB_TYPE_MAP(XX) \
+        XX(RTCP_RTPFB_NACK, 1) \
+        XX(RTCP_RTPFB_TMMBR, 3) \
+        XX(RTCP_RTPFB_TMMBN, 4) \
+        XX(RTCP_RTPFB_TWCC, 15)
 //rtcp类型枚举
 enum class RtcpType : uint8_t {
 #define XX(key, value) key = value,
@@ -436,7 +466,7 @@ public:
    //text长度股，可以为0
    uint8_t length;
    //不定长
-    char text;
+    char text[1];
    //最后以RTCP_SDES_END结尾
    //只字段为占位字段，不代表真实位置
    uint8_t end;
@@ -501,7 +531,8 @@ private:
    void net2Host(size_t size);
 } PACKED;
-//6.1.   Common Packet Format for Feedback Messages
+// https://tools.ietf.org/html/rfc4585#section-6.1
+// 6.1.   Common Packet Format for Feedback Messages
 //
 //   All FB messages MUST use a common packet format that is depicted in
 //   Figure 3:
@@ -569,7 +600,7 @@ public:
    /* 可选 */
    uint8_t reason_len;
-    char reason;
+    char reason[1];
 public:
    /**

--- a/src/Rtcp/RtcpFCI.cpp
+++ b/src/Rtcp/RtcpFCI.cpp
-//
+/*
-// Created by xzl on 2021/4/13.
+ * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
-//
+ *
+ * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
+ *
+ * Use of this source code is governed by MIT license that can be found in the
+ * LICENSE file in the root of the source tree. All contributing project authors
+ * may be found in the AUTHORS file in the root of the source tree.
+ */
 #include "RtcpFCI.h"
+namespace mediakit {
+}//namespace mediakit
\ No newline at end of file
--- a/src/Rtcp/RtcpFCI.h
+++ b/src/Rtcp/RtcpFCI.h