rtsp/rtmp/mp4支持opus并整理代码

src/Rtmp/Rtmp.cpp

@@ -58,6 +58,14 @@ uint8_t getAudioRtmpFlags(const Track::Ptr &track){
             switch (track->getCodecId()){
                 case CodecG711A : flvAudioType = FLV_CODEC_G711A; break;
                 case CodecG711U : flvAudioType = FLV_CODEC_G711U; break;
+                case CodecOpus : {
+                    flvAudioType = FLV_CODEC_OPUS;
+                    //opus不通过flags获取音频相关信息
+                    iSampleRate = 44100;
+                    iSampleBit = 16;
+                    iChannel = 2;
+                    break;
+                }
                 case CodecAAC : {
                     flvAudioType = FLV_CODEC_AAC;
                     //aac不通过flags获取音频相关信息

src/Rtmp/Rtmp.h

@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
@@ -74,10 +74,12 @@ using namespace toolkit;
 
 #define FLV_CODEC_AAC 10
 #define FLV_CODEC_H264 7
+//金山扩展: https://github.com/ksvc/FFmpeg/wiki
 #define FLV_CODEC_H265 12
 #define FLV_CODEC_G711A 7
 #define FLV_CODEC_G711U 8
-
+//参考学而思网校: https://github.com/notedit/rtmp/commit/6e314ac5b29611431f8fb5468596b05815743c10
+#define FLV_CODEC_OPUS 13
 
 namespace mediakit {