匹配H264 profile

webrtc/Sdp.cpp

@@ -1524,12 +1524,41 @@ void RtcConfigure::setPlayRtspInfo(const string &sdp){
     }
 }
 
+static map<string, string, StrCaseCompare> toMap(const vector<std::pair<string/*key*/, string/*value*/> > &fmt) {
+    map<string, string, StrCaseCompare> ret;
+    for (auto &pr : fmt) {
+        ret.emplace(pr);
+    }
+    return ret;
+}
+
+static const string kProfile{"profile-level-id"};
+static const string kMode{"packetization-mode"};
+
 bool RtcConfigure::onMatchCodecPlan(const RtcCodecPlan &plan, CodecId codec){
     if (_rtsp_audio_plan && codec == getCodecId(_rtsp_audio_plan->codec)) {
         if (plan.sample_rate != _rtsp_audio_plan->sample_rate || plan.channel != _rtsp_audio_plan->channel) {
             //音频采样率和通道数必须相同
             return false;
         }
+        return true;
     }
+    if (_rtsp_video_plan && codec == CodecH264 && getCodecId(_rtsp_video_plan->codec) == CodecH264) {
+        //h264时，匹配packetization-mode和profile-level-id
+        auto rtc_fmt_map = toMap(plan.fmtp);
+        auto rtsp_fmt_map = toMap(_rtsp_video_plan->fmtp);
+        auto &profile = rtsp_fmt_map[kProfile];
+        if (!profile.empty() && profile != rtc_fmt_map[kProfile]) {
+            //profile-level-id 不匹配
+            return false;
+        }
+        auto &mode = rtsp_fmt_map[kMode];
+        if (!mode.empty() && mode != rtc_fmt_map[kMode]) {
+            //packetization-mode不匹配
+            return false;
+        }
+        return true;
+    }
+
     return true;
 }