From 920f06a9961de53b9aa542d93366a8f47f87c63b Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Thu, 30 Apr 2020 13:35:38 +0800
Subject: [PATCH] =?UTF-8?q?AAC=20sdp=E6=B7=BB=E5=8A=A0=E9=80=9A=E9=81=93?=
 =?UTF-8?q?=E6=95=B0?=
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---
 src/Extension/AAC.cpp | 2 +-
 src/Extension/AAC.h   | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Extension/AAC.cpp b/src/Extension/AAC.cpp
index 686fdd57..282bd2f0 100644
--- a/src/Extension/AAC.cpp
+++ b/src/Extension/AAC.cpp
@@ -103,7 +103,7 @@ Sdp::Ptr AACTrack::getSdp() {
         WarnL << getCodecName() << " Track未准备好";
         return nullptr;
     }
-    return std::make_shared<AACSdp>(getAacCfg(),getAudioSampleRate());
+    return std::make_shared<AACSdp>(getAacCfg(),getAudioSampleRate(), getAudioChannel());
 }
 
 }//namespace mediakit
diff --git a/src/Extension/AAC.h b/src/Extension/AAC.h
index faf69198..2a57d6d4 100644
--- a/src/Extension/AAC.h
+++ b/src/Extension/AAC.h
@@ -276,11 +276,12 @@ public:
      */
     AACSdp(const string &aac_cfg,
            int sample_rate,
+           int channels,
            int playload_type = 98,
            int bitrate = 128) : Sdp(sample_rate,playload_type){
         _printer << "m=audio 0 RTP/AVP " << playload_type << "\r\n";
         _printer << "b=AS:" << bitrate << "\r\n";
-        _printer << "a=rtpmap:" << playload_type << " MPEG4-GENERIC/" << sample_rate << "\r\n";
+        _printer << "a=rtpmap:" << playload_type << " MPEG4-GENERIC/" << sample_rate << "/" << channels << "\r\n";
 
         char configStr[32] = {0};
         snprintf(configStr, sizeof(configStr), "%02X%02X", (uint8_t)aac_cfg[0], (uint8_t)aac_cfg[1]);