support multi session

app.py

@@ -27,7 +27,8 @@ import asyncio
 
 app = Flask(__name__)
 sockets = Sockets(app)
-global nerfreal
+nerfreals = []
+statreals = [] 
 
     
 @sockets.route('/humanecho')
@@ -87,6 +88,16 @@ async def offer(request):
     params = await request.json()
     offer = RTCSessionDescription(sdp=params["sdp"], type=params["type"])
 
+    sessionid = len(nerfreals)
+    for index,value in enumerate(statreals):
+        if value == 0:
+            sessionid = index
+            break
+    if sessionid>=len(nerfreals):
+        print('reach max session')
+        return -1
+    statreals[sessionid] = 1
+    
     pc = RTCPeerConnection()
     pcs.add(pc)
 
@@ -96,8 +107,12 @@ async def offer(request):
         if pc.connectionState == "failed":
             await pc.close()
             pcs.discard(pc)
+            statreals[sessionid] = 0
+        if pc.connectionState == "closed":
+            pcs.discard(pc)
+            statreals[sessionid] = 0
 
-    player = HumanPlayer(nerfreal)
+    player = HumanPlayer(nerfreals[sessionid])
     audio_sender = pc.addTrack(player.audio)
     video_sender = pc.addTrack(player.video)
 
@@ -111,21 +126,22 @@ async def offer(request):
     return web.Response(
         content_type="application/json",
         text=json.dumps(
-            {"sdp": pc.localDescription.sdp, "type": pc.localDescription.type}
+            {"sdp": pc.localDescription.sdp, "type": pc.localDescription.type, "sessionid":sessionid}
         ),
     )
 
 async def human(request):
     params = await request.json()
 
+    sessionid = params.get('sessionid',0)
     if params.get('interrupt'):
-        nerfreal.pause_talk()
+        nerfreals[sessionid].pause_talk()
 
     if params['type']=='echo':
-        nerfreal.put_msg_txt(params['text'])
+        nerfreals[sessionid].put_msg_txt(params['text'])
     elif params['type']=='chat':
         res=await asyncio.get_event_loop().run_in_executor(None, llm_response(params['text']))                          
-        nerfreal.put_msg_txt(res)
+        nerfreals[sessionid].put_msg_txt(res)
 
     return web.Response(
         content_type="application/json",
@@ -159,7 +175,7 @@ async def run(push_url):
             await pc.close()
             pcs.discard(pc)
 
-    player = HumanPlayer(nerfreal)
+    player = HumanPlayer(nerfreals[0])
     audio_sender = pc.addTrack(player.audio)
     video_sender = pc.addTrack(player.video)
 
@@ -303,6 +319,7 @@ if __name__ == '__main__':
     parser.add_argument('--transport', type=str, default='rtcpush') #rtmp webrtc rtcpush
     parser.add_argument('--push_url', type=str, default='http://localhost:1985/rtc/v1/whip/?app=live&stream=livestream') #rtmp://localhost/live/livestream
 
+    parser.add_argument('--max_session', type=int, default=1)  #multi session count
     parser.add_argument('--listenport', type=int, default=8010)
 
     opt = parser.parse_args()
@@ -355,20 +372,29 @@ if __name__ == '__main__':
         model.eye_areas = test_loader._data.eye_area
 
         # we still need test_loader to provide audio features for testing.
-        nerfreal = NeRFReal(opt, trainer, test_loader)
+        for _ in range(opt.max_session):
+            nerfreal = NeRFReal(opt, trainer, test_loader)
+            nerfreals.append(nerfreal)
     elif opt.model == 'musetalk':
         from musereal import MuseReal
         print(opt)
-        nerfreal = MuseReal(opt)
+        for _ in range(opt.max_session):
+            nerfreal = MuseReal(opt)
+            nerfreals.append(nerfreal)
     elif opt.model == 'wav2lip':
         from lipreal import LipReal
         print(opt)
-        nerfreal = LipReal(opt)
+        for _ in range(opt.max_session):
+            nerfreal = LipReal(opt)
+            nerfreals.append(nerfreal)
+    
+    for _ in range(opt.max_session):
+        statreals.append(0)
 
     #txt_to_audio('我是中国人,我来自北京')
     if opt.transport=='rtmp':
         thread_quit = Event()
-        rendthrd = Thread(target=nerfreal.render,args=(thread_quit,))
+        rendthrd = Thread(target=nerfreals[0].render,args=(thread_quit,))
         rendthrd.start()
 
     #############################################################################

web/client.js

@@ -35,6 +35,7 @@ function negotiate() {
     }).then((response) => {
         return response.json();
     }).then((answer) => {
+        document.getElementById('sessionid').value = answer.sessionid
         return pc.setRemoteDescription(answer);
     }).catch((e) => {
         alert(e);

web/webrtcapi.html

@@ -30,6 +30,7 @@
 </div>
 <button id="start" onclick="start()">Start</button>
 <button id="stop" style="display: none" onclick="stop()">Stop</button>
+<input type="hidden" id="sessionid" value="1234">
 <form class="form-inline" id="echo-form">
     <div class="form-group">
       <p>input text</p>
@@ -75,11 +76,13 @@
       e.preventDefault();
       var message = $('#message').val();
       console.log('Sending: ' + message);
+      console.log('sessionid: ',document.getElementById('sessionid').value);
       fetch('/human', {
             body: JSON.stringify({
                 text: message,
                 type: 'echo',
                 interrupt: true,
+                sessionid:parseInt(document.getElementById('sessionid').value),
             }),
             headers: {
                 'Content-Type': 'application/json'