[WIP] Trying to fix single offer mode and add serverless mode that depends o nit.

.gitmodules

@@ -1,9 +1,6 @@
-[submodule "external/LZMA-JS"]
-	path = external/LZMA-JS
-	url = https://github.com/LZMA-JS/LZMA-JS.git
-[submodule "external/base64.js"]
-	path = external/base64.js
-	url = https://gist.github.com/72c423f727d395eeaa09697058238727.git
 [submodule "external/qr-scanner"]
 	path = external/qr-scanner
 	url = https://github.com/nimiq/qr-scanner.git
+[submodule "external/qrcodejs"]
+	path = external/qrcodejs
+	url = https://github.com/davidshimjs/qrcodejs.git

camera/routing.py

@@ -4,5 +4,5 @@ from . import consumers
 
 websocket_urlpatterns = [
     re_path(r'camera/ws/(?P<kind>host|client)/(?P<room_name>\w+)/$',
-            consumers.VideoConsumer.as_asgi()),
+            consumers.VideoConsumer),
 ]

camera/static/js/base64.js

@@ -1 +0,0 @@
-../../../external/base64.js/base64.js

camera/static/js/lzma_worker.js

@@ -1 +0,0 @@
-../../../external/LZMA-JS/src/lzma_worker.js

camera/static/js/prefix

@@ -1,175 +0,0 @@
-{"description":{"type":"answer","sdp":"v=0
-o=- 0 2 IN IP4 127.0.0.1
-s=-
-t=0 0
-a=group:BUNDLE 0
-a=msid-semantic: WMS
-m=audio 9 UDP/TLS/RTP/SAVPF 109 9 0 8 101
-c=IN IP4 0.0.0.0
-a=rtcp:9 IN IP4 0.0.0.0
-a=candidate:0 1 udp 0 a.local 0 typ host generation 0 network-cost 999
-a=ice-ufrag:
-a=ice-pwd:
-a=ice-options:trickle
-a=fingerprint:sha-256 000:01:12:23:34:45:56:67:78:89:9A:AB:BC:CD:DE:EF:F0:02:03:04:05:06:07:08:09:0A:0B:0C:0D:0E:0F
-a=setup:active
-a=mid:0
-a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
-a=extmap:3 urn:ietf:params:rtp-hdrext:sdes:mid
-a=recvonly
-a=rtcp-mux
-a=rtpmap:109 opus/48000/2
-a=fmtp:109 minptime=10;useinbandfec=1
-a=rtpmap:9 G722/8000
-a=rtpmap:0 PCMU/8000
-a=rtpmap:8 PCMA/8000
-a=rtpmap:101 telephone-event/8000
-"}}
-{"description":{"type":"offer","sdp":"v=0
-o=mozilla...THIS_IS_SDPARTA-68.8.1 0 0 IN IP4 0.0.0.0
-s=-
-t=0 0
-a=sendrecv
-a=fingerprint:sha-256 0:10:11:12:13:14:15:16:17:18:19:1A:1B:1C:1D:1E:1F:20:21:22:23:24:25:26:27:28:29:2A:2B:2C:2D
-a=group:BUNDLE 0
-a=ice-options:trickle
-a=msid-semantic:WMS *
-m=audio 40000 UDP/TLS/RTP/SAVPF 109 9 0 8 101
-c=IN IP4 192.168.0.0
-a=candidate:0 1 UDP 2100000000 192.168.0.0 40000 typ host
-a=candidate:1 1 UDP 2100000000 ::1 40000 typ host
-a=candidate:2 1 TCP 2100000000 192.168.0.0 40000 typ host tcptype passive
-a=candidate:2 1 TCP 2100000000 192.168.0.0 9 typ host tcptype active
-a=candidate:3 1 TCP 2100000000 ::1 40000 typ host tcptype passive
-a=candidate:3 1 TCP 2100000000 ::1 9 typ host tcptype active
-a=candidate:0 2 UDP 2100000000 192.168.0.0 40000 typ host
-a=candidate:1 2 UDP 2100000000 ::1 40000 typ host
-a=candidate:2 2 TCP 2100000000 192.168.0.0 40000 typ host tcptype passive
-a=candidate:2 2 TCP 2100000000 192.168.0.0 9 typ host tcptype active
-a=candidate:3 2 TCP 2100000000 ::1 40000 typ host tcptype passive
-a=candidate:3 2 TCP 2100000000 ::1 9 typ host tcptype active
-a=sendrecv
-a=end-of-candidates
-a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
-a=extmap:2/recvonly urn:ietf:params:rtp-hdrext:csrc-audio-level
-a=extmap:3 urn:ietf:params:rtp-hdrext:sdes:mid
-a=fmtp:109 maxplaybackrate=48000;stereo=1;useinbandfec=1
-a=fmtp:101 0-15
-a=ice-pwd:
-a=ice-ufrag:
-a=mid:0
-a=msid:{}
-a=rtcp:40000 IN IP4 192.168.0.0
-a=rtcp-mux
-a=rtpmap:109 opus/48000/2
-a=rtpmap:9 G722/8000/1
-a=rtpmap:0 PCMU/8000
-a=rtpmap:8 PCMA/8000
-a=rtpmap:101 telephone-event/8000
-a=setup:actpass
-a=ssrc:0 cname:{}
-"}}
-{"description":{"type":"answer","sdp":"v=0
-o=- 0 2 IN IP4 127.0.0.1
-s=-
-t=0 0
-a=group:BUNDLE 0
-a=msid-semantic: WMS
-m=video 9 UDP/TLS/RTP/SAVPF 120 121
-c=IN IP4 0.0.0.0
-a=rtcp:9 IN IP4 0.0.0.0
-a=candidate:0 1 udp 2100000000 abc.local 40000 typ host generation 0 network-cost 999
-a=ice-ufrag:
-a=ice-pwd:
-a=ice-options:trickle
-a=fingerprint:sha-256 0:2E:2F:30:31:32:33:34:35:36:37:38:39:3A:3B:3C:3D:3E:3F:40:41:42:43:44:45:46:47:48:49:4A:4B
-a=setup:active
-a=mid:0
-a=extmap:5 urn:ietf:params:rtp-hdrext:toffset
-a=extmap:4 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
-a=extmap:3 urn:ietf:params:rtp-hdrext:sdes:mid
-a=recvonly
-a=rtcp-mux
-a=rtpmap:120 VP8/90000
-a=rtcp-fb:120 goog-remb
-a=rtcp-fb:120 ccm fir
-a=rtcp-fb:120 nack
-a=rtcp-fb:120 nack pli
-a=rtpmap:121 VP9/90000
-a=rtcp-fb:121 goog-remb
-a=rtcp-fb:121 ccm fir
-a=rtcp-fb:121 nack
-a=rtcp-fb:121 nack pli
-a=fmtp:121 profile-id=0
-"}}
-{"description":{"type":"offer","sdp":"v=0
-o=mozilla...THIS_IS_SDPARTA-68.8.1 0 0 IN IP4 0.0.0.0
-s=-
-t=0 0
-a=sendrecv
-a=fingerprint:sha-256 0:4C:4D:4E:4F:50:51:52:53:54:55:56:57:58:59:5A:5B:5C:5D:5E:5F:60:61:62:63:64:65:66:67:68:69
-a=group:BUNDLE 0
-a=ice-options:trickle
-a=msid-semantic:WMS *
-m=video 40000 UDP/TLS/RTP/SAVPF 120 121
-c=IN IP4 192.168.0.0
-a=candidate:0 1 UDP 2100000000 192.168.0.0 40000 typ host
-a=candidate:1 1 UDP 2100000000 ::1 40000 typ host
-a=candidate:2 1 TCP 2100000000 192.168.0.0 40000 typ host tcptype passive
-a=candidate:2 1 TCP 2100000000 192.168.0.0 9 typ host tcptype active
-a=candidate:3 1 TCP 2100000000 ::1 40000 typ host tcptype passive
-a=candidate:3 1 TCP 2100000000 ::1 9 typ host tcptype active
-a=candidate:0 2 UDP 2100000000 192.168.0.0 40000 typ host
-a=candidate:1 2 UDP 2100000000 ::1 40000 typ host
-a=candidate:2 2 TCP 2100000000 192.168.0.0 40000 typ host tcptype passive
-a=candidate:2 2 TCP 2100000000 192.168.0.0 9 typ host tcptype active
-a=candidate:3 2 TCP 2100000000 ::1 40000 typ host tcptype passive
-a=candidate:3 2 TCP 2100000000 ::1 9 typ host tcptype active
-a=sendrecv
-a=end-of-candidates
-a=extmap:3 urn:ietf:params:rtp-hdrext:sdes:mid
-a=extmap:4 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
-a=extmap:5 urn:ietf:params:rtp-hdrext:toffset
-a=fmtp:120 max-fs=12288;max-fr=60
-a=fmtp:121 max-fs=12288;max-fr=60
-a=ice-pwd:
-a=ice-ufrag:
-a=mid:0
-a=msid:{}
-a=rtcp:40000 IN IP4 192.168.0.0
-a=rtcp-fb:120 nack
-a=rtcp-fb:120 nack pli
-a=rtcp-fb:120 ccm fir
-a=rtcp-fb:120 goog-remb
-a=rtcp-fb:121 nack
-a=rtcp-fb:121 nack pli
-a=rtcp-fb:121 ccm fir
-a=rtcp-fb:121 goog-remb
-a=rtcp-mux
-a=rtpmap:120 VP8/90000
-a=rtpmap:121 VP9/90000
-a=setup:actpass
-a=ssrc:0 cname:{}
-"}}
-{"description":{"type":"offer","sdp":"v=0
-o=mozilla...THIS_IS_SDPARTA-75.0 0 0 IN IP4 0.0.0.0
-s=-
-t=0 0
-a=sendrecv
-a=fingerprint:sha-256 6A:6B:6C:6D:6E:6F:70:71:72:73:74:75:76:77:78:79:7A:7B:7C:7D:7E:7F:80:81:82:83:84:85:86:87:88:89
-a=group:BUNDLE 0
-a=ice-options:trickle
-a=msid-semantic:WMS *
-m=application 9 UDP/DTLS/SCTP webrtc-datachannel
-c=IN IP4 0.0.0.0
-a=candidate:0 1 UDP 2100000000 0.local 40000 typ host
-a=candidate:1 1 TCP 2100000000 0.local 9 typ host tcptype active
-a=sendrecv
-a=end-of-candidates
-a=ice-pwd:
-a=ice-ufrag:
-a=mid:0
-a=setup:actpass
-a=sctp-port:5000
-a=max-message-size:
-"}}

camera/static/js/prefixCompressor.js

@@ -1,47 +0,0 @@
-async function loadLZMAPrefixCompressor(prefixFilename) {
-  class PrefixCompressor {
-    constructor(prefix, compress, decompress, bytesToIgnore) {
-      this.prefix = prefix;
-      this.prefixCompressed = compress(prefix);
-      this.bytesToIgnore = bytesToIgnore;
-      this.baseCompress = compress;
-      this.baseDecompress = decompress;
-    }
-
-    compress(str) {
-      const c = this.baseCompress(this.prefix + str);
-      for (var i = this.bytesToIgnore;
-           i < this.prefixCompressed.length
-             && this.prefixCompressed[i] == c[i];
-           i++) { }
-      const omittedBytes = this.prefixCompressed.length - i;
-      const res = c.subarray(i - 1);
-      res[0] = omittedBytes;
-      return res;
-    }
-
-    decompress(arr) {
-      const omittedBytes = arr[0];
-      const prefixBytes = this.prefixCompressed.length-omittedBytes;
-      const c = new Uint8Array(prefixBytes + arr.length-1);
-      c.set(this.prefixCompressed.subarray(0, prefixBytes));
-      c.set(arr.subarray(1), prefixBytes);
-      const d = this.baseDecompress(c);
-      return d.substring(this.prefix.length);
-    }
-  }
-  async function loadDictionary() {
-    const response = await fetch(prefixFilename);
-    return await response.text();
-  }
-  const prefix = await loadDictionary();
-
-  return new PrefixCompressor(prefix, str => {
-    const res = new Uint8Array(LZMA.compress(str, 9));
-    // Clear uncompressed size as it will be invalid.
-    for (var i = 5; i < 13; i++) res[i] = 255;
-    return res;
-  }, arr => {
-    return LZMA.decompress(arr).toString();
-  }, 12);
-}

camera/static/js/qr-scanner-worker.min.js

@@ -1 +1 @@
-../../../external/qr-scanner-binaryData/qr-scanner-worker.min.js
+../../../external/qr-scanner/qr-scanner-worker.min.js

camera/static/js/qrcode.js

@@ -0,0 +1 @@
+../../../external/qrcodejs/qrcode.js

camera/templates/index.html

@@ -3,22 +3,18 @@
   <head>
     <meta charset="utf-8"/>
     <title>Minimal WebRTC</title>
-    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
     <style>
 body.justVideo {
   margin: 0;
   overflow: hidden;
 }
-body.justVideo #status, body.justVideo form {
+#qrcodelink {
-  display: none;
-}
-.qrcontainer {
   position: sticky;
   top: 0;
   right: 0;
   float: right;
 }
-.qrcontainer svg path {
+#qrcodelink svg path {
   min-width: 30vw;
   max-width: 100vw;
   max-height: 50vh;
@@ -46,6 +42,9 @@ form label {
 #status {
   display: table;
 }
+body.justVideo #status {
+  display: none;
+}
 #status .log-entry {
   display: block;
   background: lightblue;
@@ -57,23 +56,17 @@ form label {
 }
     </style>
     <script type="text/javascript" src="static/js/qrcodegen.js"></script>
-    <script type="text/javascript" src="static/js/lzma_worker.js"></script>
-    <script type="text/javascript" src="static/js/prefixCompressor.js"></script>
   </head>
   <body>
-    <a class="qrcontainer" id="qrcodelink" style="display:none;">
+    <a id="qrcodelink" style="display:none;">
-      <svg xmlns="http://www.w3.org/2000/svg" id="qrcode" style="width:20em; height:20em;" stroke="none">
+      <svg xmlns="http://www.w3.org/2000/svg" id="qrcode" style="width:30em; height:30em;" stroke="none">
         <rect width="100%" height="100%" fill="#FFFFFF"/>
         <path d="" fill="#000000"/>
       </svg>
     </a>
-    <div class="qrcontainer" id="qrcodeObjContainer" style="display:none;">
+    <div id="qrcodemessage" style="display:none;">
-      <svg xmlns="http://www.w3.org/2000/svg" id="qrcodeObj" style="width:20em; height:20em;" stroke="none">
+      <!-- TODO Add copy button. -->
-        <rect width="100%" height="100%" fill="#FFFFFF"/>
+      <div id="qrcodemsg"></div>
-        <path d="" fill="#000000"/>
-      </svg> <br/>
-      <textarea id="localOffer" readonly></textarea>
-      <button id="copyLocalOffer">Copy</button>
     </div>
     <form name="settings">
       <label>
@@ -108,17 +101,6 @@ form label {
         Transmit audio:
         <input name="host-audio" type="checkbox" value="true" />
       </label>
-      <label>
-        Debug mode (show log even after starting video):
-        <input name="debug" type="checkbox" value="true" />
-      </label>
-    </form>
-    <form id="serverlessOffer" style="display: none;" onsubmit="return false;">
-      <label>
-        Paste offer here:
-        <textarea name="remoteOffer"></textarea>
-        <button id="remoteOfferScan">Scan QR code</button>
-      </label>
     </form>
     <div id="status"></div>
     <div id="videos">
@@ -126,42 +108,22 @@ form label {
       <button id="start" style="display:none;">Start Streaming</button>
       <video id="remoteView" width="100%" autoplay muted style="display:none;"></video>
       <video id="selfView" width="200" height="150" autoplay muted style="display:none;"></video>
-      <video id="qrscan" width="100%" autoplay muted style="display:none;"></video>
     </div>
-    <script type="module" >
+    <script >
-    import * as b64 from "./static/js/base64.js";
-    import QrScanner from "./static/js/qr-scanner.min.js";
-    QrScanner.WORKER_PATH = "./static/js/qr-scanner-worker.min.js"
-
-    async function initialize() {
       const create = (container, type) => container.appendChild(document.createElement(type));
       const QRGen = qrcodegen.QrCode;
 
-      var compressor = null;
-      async function getCompressor() {
-        if (compressor == null) {
-          compressor = await loadLZMAPrefixCompressor('static/js/prefix');
-        }
-        return compressor;
-      }
-
       const body = document.querySelector("body");
       const out = document.getElementById("status");
       const qrcode = document.getElementById("qrcode");
       const qrcodelink = document.getElementById("qrcodelink");
-      const qrcodeObjContainer = document.getElementById("qrcodeObjContainer");
+      const qrcodemsg = document.getElementById("qrcodemsg");
-      const qrcodeObj = document.getElementById("qrcodeObj");
+      const qrcodemessage = document.getElementById("qrcodemessage");
       const remoteView = document.getElementById("remoteView");
       const selfView = document.getElementById("selfView");
-      const qrscan = document.getElementById("qrscan");
       const start = document.getElementById("start");
       const unmute = document.getElementById("unmute");
       const form = document.forms["settings"];
-      const remoteOfferForm = document.forms["serverlessOffer"];
-      const remoteOffer = remoteOfferForm.elements["remoteOffer"];
-      const remoteOfferScan = document.getElementById("remoteOfferScan");
-      const localOfferArea = document.getElementById("localOffer");
-      const localOfferCopyButton = document.getElementById("copyLocalOffer");
 
       function _log(str, tag) {
         const logEntry = document.createElement(tag);
@@ -174,6 +136,10 @@ form label {
       }
 
       function logPre(str) {
+        if (!str) {
+          _log('undefined', 'pre');
+          return;
+        }
         _log(str.split('\\r\\n').join('\r\n'), 'pre');
       }
 
@@ -195,11 +161,8 @@ form label {
       }
 
       for (const el of form.elements) {
-        el.addEventListener("change", e => {
+        el.addEventListener("change", _ => {
           window.location.hash = JSON.stringify(readSettingsForm(false));
-          if (e.target.name == 'serverless') {
-            window.location.reload(false);
-          }
         });
       }
 
@@ -210,44 +173,18 @@ form label {
       function withHash(hash) {
         return window.location.href.split('#')[0] + '#' + hash;
       }
-      function displayQR(qrcode, val) {
+      function displayQRUrl(url) {
-        const encodeFunc = val instanceof Uint8Array
+        qrcodelink.href = url;
-          ? QRGen.encodeBinary
+        const qr = QRGen.encodeText(url, QRGen.Ecc.MEDIUM);
-          : QRGen.encodeText;
+        const code = qr.toSvgString(4);
-        const qr = encodeFunc(val, QRGen.Ecc.MEDIUM);
-        const code = qr.toSvgString(1);
         const viewBox = (/ viewBox="([^"]*)"/.exec(code))[1];
         const pathD = (/ d="([^"]*)"/.exec(code))[1];
         qrcode.setAttribute("viewBox", viewBox);
         qrcode.querySelector("path").setAttribute("d", pathD);
-      }
-      function displayQRUrl(url) {
-        qrcodelink.href = url;
-        displayQR(qrcode, url);
         qrcodelink.style.display = '';
       }
       function displayQRUrlForObj(obj) {
-        const json = JSON.stringify(obj);
+        displayQRUrl(withHash('^' + btoa(JSON.stringify(obj))))
-        log("Encoding message in QR code/link:");
-        logPre(json);
-        const compressed = compressor.compress(json);
-        const encoded = b64.bytesToBase64(compressed);
-        displayQRUrl(withHash('^' + encoded));
-      }
-      function displayQRCodeForObj(obj) {
-        const json = JSON.stringify(obj);
-        log("Encoding message in QR code for copy/paste:");
-        logPre(json);
-        const compressed = compressor.compress(json);
-        const encoded = b64.bytesToBase64(compressed);
-        displayQR(qrcodeObj, compressed);
-        localOfferArea.value = encoded;
-        localOfferCopyButton.onclick = _ => {
-          localOfferArea.focus();
-          localOfferArea.select();
-          document.execCommand('copy');
-        };
-        qrcodeObjContainer.style.display = '';
       }
 
       let roomName = window.location.hash;
@@ -284,10 +221,10 @@ form label {
           log("Reading first message from hash:");
           logPre(hash);
           log("Decoded base64:");
-          const decoded = (await getCompressor()).decompress(b64.base64ToBytes(hash.substring(2)));
+          const decoded = atob(hash.substring(2));
           logPre(decoded);
-          firstMessage = decoded;
+          firstMessage = JSON.parse(decoded);
-          settings = {serverless: true};
+          settings = firstMessage.settings;
         } catch (error) {
           log("Failed to read message from hash: " + error);
         }
@@ -317,67 +254,54 @@ form label {
         form.style.display = 'none';
       }
 
-      if (isServerless()) {
-        log("In serverless mode.");
-      } else {
       log("Room: " + roomName);
-      }
 
       var webSocket = undefined;
 
       function sendJson(data) {
         const toSend = JSON.stringify(data);
-        const dcReady = dc && dc.readyState == "open";
+        log("Sending message...");
-        const method = dcReady ? "dataConnection" : "webSocket";
-        log("Sending message via " + method + "...");
         logPre(toSend);
-        if (isServerless() && !dcReady) {
+        if (isServerless()) {
-          log("ERROR: Attempted to use webSocket in serverless mode.");
+          
-          return;
+        } else {
+          webSocket.send(toSend);
         }
-        (dcReady ? dc : webSocket).send(toSend);
       }
 
       var pc = undefined;
-      var dc = undefined;
+      var localDescriptionSet = false;
-
-      function sendOffer() {
-        if (pc.iceGatheringState == "complete") {
-          const sendFunc = !isServerless() || dc && dc.readyState == "open"
-            ? sendJson
-            : isHost
-              ? displayQRUrlForObj
-              : displayQRCodeForObj;
-          sendFunc({
-            description: pc.localDescription
-          });
-        }
-      }
-
       function createRTCPeerConnection() {
         const pc = new RTCPeerConnection();
         log("Created RTCPeerConnection.");
 
-        pc.onsignalingstatechange = e => {
+        pc.addEventListener('icegatheringstatechange', e => {
-          log("pc.onsignalingstatechange: " + pc.signalingState);
+          log("In pc.icegatheringstatechange... e.target.iceGatheringState="
+               + e.target.iceGatheringState);
+          if (!startStreamingDone || !localDescriptionSet) return;
+          // In serverless mode, host transmits first.
+          // In server mode, client transmits first.
+          if ((isServerless() != isHost) && !handledOffer) return;
+          // Don't send offer until all ICE candidates are generated.
+          if (e.target.iceGatheringState === 'complete') {
+            if (isHost && isServerless()) {
+              displayQRUrlForObj({
+                settings: settings,
+                description: pc.localDescription
+              });
+            } else {
+              sendJson({
+                description: pc.localDescription
+              });
             }
-        pc.oniceconnectionstatechange = e => {
-          log("pc.oniceconnectionstatechange: " + pc.iceConnectionState);
-        }
-        pc.onicegatheringstatechange = async function(e) {
-          log("pc.onicegatheringstatechange: " + pc.iceGatheringState);
-          sendOffer();
           }
+        });
 
-        // let the "negotiationneeded" event trigger offer generation
-        //  ... but only once icegathering is complete.
         pc.onnegotiationneeded = async function () {
+          localDescriptionSet = false;
           log("In pc.onnegotiationneeded...");
-          const useOffer = (!settings || !('separateIce' in settings)
+          await pc.setLocalDescription(await pc.createOffer());
-                             || !settings.separateIce);
+          localDescriptionSet = true;
-          await pc.setLocalDescription(
-                      await (useOffer ? pc.createOffer() : pc.createAnswer()));
-          sendOffer();
         }
 
         pc.ontrack = ({streams: [stream]}) => {
@@ -389,43 +313,19 @@ form label {
 
           if (stream.getVideoTracks().length > 0) {
             remoteView.style.display = '';
+            form.style.display = 'none';
             videos.style.display = '';
-            if (!settings.debug) {
             body.classList.add('justVideo');
           }
-          }
         };
 
-        pc.ondatachannel = e => {
-          dc = e.channel;
-          dc.onmessage = e => {
-            receiveMessage({source: "dataChannel", data: e.data});
-          }
-          log('Data channel initialized.');
-          qrcodeObjContainer.style.display = 'none';
-        }
-
-        if (isHost) {
-          dc = pc.createDataChannel('data');
-          dc.onmessage = e => {
-            receiveMessage({source: "dataChannel", data: e.data});
-          }
-          dc.onopen = e => {
-            remoteOffer.disabled = true;
-            remoteOfferScan.disabled = true;
-            log("Data channel open, sending settings...")
-            settings = readSettingsForm(true);
-            sendJson({settings});
-            startStreamingWithErorrHandling(false);
-          }
-        }
-
         return pc;
       }
 
+      var startStreamingDone = false;
+      var remoteDesc = null;
       // get a local stream, show it in a self-view and add it to be sent
       async function startStreaming(fromButton) {
-        log('In startStreaming(fromButton=' + fromButton + ')...');
         const otherAudioSettings = isHost
           ? settings['client-audio']
           : settings['host-audio'];
@@ -448,14 +348,23 @@ form label {
         }
         start.style.display = 'none';
 
+        if (isHost && !isServerless()) {
+          sendJson({
+            settings: settings
+          });
+        }
+
+        if (pc !== undefined) return;
+        pc = createRTCPeerConnection();
+
         const videoConstraints = videoSettings == 'none'
           ? false
           : videoSettings == 'true'
             ? true
             : { advanced: [{facingMode: videoSettings}] };
-        log("Created videoConstraints: " + JSON.stringify(videoConstraints));
+        log("Created videoConstraints.");
-        if (!videoConstraints && !audioSettings) return;
 
+        if (videoConstraints || audioSettings) {
           const stream = videoSettings == 'screen'
             ? await navigator.mediaDevices.getDisplayMedia({
               audio: audioSettings,
@@ -474,56 +383,69 @@ form label {
             log("Added track.");
             pc.addTrack(track, stream);
           }
-        log('End of startStreaming(), creating answer...');
+        }
-        if (settings && 'separateIce' in settings && settings.separateIce) {
+        else if (isServerless() && isHost) {
+          log("No audio/video host.");
+          //sendJson({description: pc.localDescription});
           await pc.setLocalDescription(await pc.createAnswer());
         }
+        startStreamingDone = true;
       }
-      function startStreamingWithErorrHandling(fromButton) {
+      function startStartingWithErorrHandling(fromButton, description) {
-        try {
         startStreaming(fromButton)
           .then(() => {
             log("startStreaming() finished.");
+            if (!description && remoteDesc) {
+              description = remoteDesc;
+              remoteDesc = null;
+            }
+            if (description) {
+              handleOffer(description);
+            }
           })
           .catch(e => {
             log("startStreaming() errored: " + e.message);
           });
-        } catch (e) {
-          log("Error in startStreaming(): " + e);
-        }
       }
 
       start.addEventListener("click", _ => {
-        startStreamingWithErorrHandling(true)
+        startStartingWithErorrHandling(true)
       });
 
+      var handledOffer = false;
+      async function handleOffer(description) {
+        await pc.setRemoteDescription(description);
+        if (description.type == "offer") {
+          log("Got an offer...");
+          await pc.setLocalDescription(await pc.createAnswer());
+          handledOffer = true;
+        }
+      }
+
       async function receiveMessage(e) {
         qrcode.style.display = 'none';
-        log("In receiveMessage from " + e.source + "...");
+        log("In webSocket.onmessage...");
         logPre(e.data);
         const data = JSON.parse(e.data);
-        if (data.ready) {
+        if (data.requestSettings) {
-          // Ready message means client is open and ready for connection.
+          settings = readSettingsForm(true);
-          pc = createRTCPeerConnection();
+          startStartingWithErorrHandling(false);
         } else if (data.settings) {
           settings = data.settings;
-          startStreamingWithErorrHandling(false);
+          if ('description' in data) {
-        } else if (data.description) {
+            startStartingWithErorrHandling(false, data.description);
-          try {
-            if (pc == undefined) pc = createRTCPeerConnection();
-            await pc.setRemoteDescription(data.description);
-            if (data.description.type == "offer") {
-              log("Got an offer...");
-              if (!settings || !('separateIce' in settings) || !settings.separateIce) {
-                await pc.setLocalDescription(await pc.createAnswer());
-                sendOffer();
           } else {
-                log("separateIce mode, so delaying answer.");
+            startStartingWithErorrHandling(false);
           }
+        } else if (data.description) {
+          if (startStreamingDone) {
+            handleOffer(data.description);
+          } else {
+            remoteDesc = data.description;
           }
-          } catch (e) {
+        } else if (data.candidate) {
-            log("Error accepting remote offer/answer: " + e);
+          log("Adding ice candidate...");
-          }
+          await pc.addIceCandidate(data.candidate);
         }
       };
 
@@ -544,9 +466,7 @@ form label {
           log('WebSocket error: ' + e);
         };
 
-        webSocket.onmessage = e => {
+        webSocket.onmessage = receiveMessage;
-          receiveMessage({source: "webSocket", data: e.data});
-        }
 
         return webSocket;
       }
@@ -555,47 +475,13 @@ form label {
         webSocket = createWebSocket();
 
         if (!isHost) {
-          // To make serverless and server mode more similar,
+          webSocket.onopen = _ => sendJson({requestSettings: true});
-          //  always make the first RTCPeerConnection offer from the host,
-          //  so here just notify the host to start the process.
-          webSocket.onopen = _ => sendJson({ready: true});
         }
       } else if (isHost) {
-        await getCompressor();
+        startStartingWithErorrHandling(false);
-        pc = createRTCPeerConnection();
-        remoteOffer.value = '';
-        remoteOffer.onchange = _ => {
-          try {
-            const decoded = b64.base64ToBytes(remoteOffer.value);
-            const decompressed = compressor.decompress(decoded);
-            receiveMessage({source: 'textarea', data: decompressed});
-          } catch (e) {
-            log("Error decoding remote offer: " + e);
-          }
-        };
-        remoteOfferScan.onclick = _ => {
-          qrscan.style.display = '';
-          const qrScanner = new QrScanner(qrscan, (result) => {
-            qrscan.style.display = 'none';
-            log('Decoded qr code.');
-            try {
-              const decompressed = compressor.decompress(new Uint8Array(result.binaryData));
-              receiveMessage({source: 'qr', data: decompressed});
-              qrScanner.destroy();
-            } catch(error) {
-              log('Error interpreting QR code: ' + error);
-            }
-          });
-          qrScanner.start();
-        };
-        remoteOfferForm.style.display = '';
-      } else {
-        receiveMessage({source: 'URL', data: firstMessage});
       }
 
       log("Finished <script> block.");
-    }
-    initialize();
     </script>
   </body>
 </html>

external/LZMA-JS

@@ -1 +0,0 @@
-Subproject commit 8f98fe85a1ef78ab6e9d26ab85ce338f50095a23

external/base64.js

@@ -1 +0,0 @@
-Subproject commit 74d3cbf82481545bc26c104de2419f4ee30c7dd7

external/qr-scanner-binaryData/README

@@ -1,6 +0,0 @@
-./qr-scanner-worker.min.js is modified from
-../qr-scanner/qr-scanner-worker.min.js. The only change is that instead
-of returning result.data, it returns result to allow access to
-result.binaryData.
-
-MIT Licensed

external/qr-scanner-binaryData/qr-scanner-worker.min.js

@@ -1,86 +0,0 @@
-'use strict';(function(){function S(a,b){let c=[],d="";b=a.readBits([8,16,16][b]);for(let d=0;d<b;d++){let b=a.readBits(8);c.push(b)}try{d+=decodeURIComponent(c.map((a)=>`%${("0"+a.toString(16)).substr(-2)}`).join(""))}catch(e){}return{bytes:c,text:d}}function T(a,b){a=new U(a);b=9>=b?0:26>=b?1:2;let c={text:"",bytes:[],chunks:[]};for(;4<=a.available();){var d=a.readBits(4);if(d===y.Terminator)return c;if(d===y.ECI)0===a.readBits(1)?c.chunks.push({type:u.ECI,assignmentNumber:a.readBits(7)}):0===a.readBits(1)?
-c.chunks.push({type:u.ECI,assignmentNumber:a.readBits(14)}):0===a.readBits(1)?c.chunks.push({type:u.ECI,assignmentNumber:a.readBits(21)}):c.chunks.push({type:u.ECI,assignmentNumber:-1});else if(d===y.Numeric){var e=a;d=[];for(var g="",f=e.readBits([10,12,14][b]);3<=f;){var h=e.readBits(10);if(1E3<=h)throw Error("Invalid numeric value above 999");var k=Math.floor(h/100),m=Math.floor(h/10)%10;h%=10;d.push(48+k,48+m,48+h);g+=k.toString()+m.toString()+h.toString();f-=3}if(2===f){f=e.readBits(7);if(100<=
-f)throw Error("Invalid numeric value above 99");e=Math.floor(f/10);f%=10;d.push(48+e,48+f);g+=e.toString()+f.toString()}else if(1===f){e=e.readBits(4);if(10<=e)throw Error("Invalid numeric value above 9");d.push(48+e);g+=e.toString()}d={bytes:d,text:g};c.text+=d.text;c.bytes.push(...d.bytes);c.chunks.push({type:u.Numeric,text:d.text})}else if(d===y.Alphanumeric){e=a;d=[];g="";for(f=e.readBits([9,11,13][b]);2<=f;)m=e.readBits(11),k=Math.floor(m/45),m%=45,d.push(B[k].charCodeAt(0),B[m].charCodeAt(0)),
-g+=B[k]+B[m],f-=2;1===f&&(e=e.readBits(6),d.push(B[e].charCodeAt(0)),g+=B[e]);d={bytes:d,text:g};c.text+=d.text;c.bytes.push(...d.bytes);c.chunks.push({type:u.Alphanumeric,text:d.text})}else if(d===y.Byte)d=S(a,b),c.text+=d.text,c.bytes.push(...d.bytes),c.chunks.push({type:u.Byte,bytes:d.bytes,text:d.text});else if(d===y.Kanji){g=a;d=[];e=g.readBits([8,10,12][b]);for(f=0;f<e;f++)k=g.readBits(13),k=Math.floor(k/192)<<8|k%192,k=7936>k?k+33088:k+49472,d.push(k>>8,k&255);g=(new TextDecoder("shift-jis")).decode(Uint8Array.from(d));
-d={bytes:d,text:g};c.text+=d.text;c.bytes.push(...d.bytes);c.chunks.push({type:u.Kanji,bytes:d.bytes,text:d.text})}}if(0===a.available()||0===a.readBits(a.available()))return c}function J(a,b){return a^b}function V(a,b,c,d){b.degree()<c.degree()&&([b,c]=[c,b]);let e=a.zero;for(var g=a.one;c.degree()>=d/2;){var f=b;let d=e;b=c;e=g;if(b.isZero())return null;c=f;g=a.zero;f=b.getCoefficient(b.degree());for(f=a.inverse(f);c.degree()>=b.degree()&&!c.isZero();){let d=c.degree()-b.degree(),e=a.multiply(c.getCoefficient(c.degree()),
-f);g=g.addOrSubtract(a.buildMonomial(d,e));c=c.addOrSubtract(b.multiplyByMonomial(d,e))}g=g.multiplyPoly(e).addOrSubtract(d);if(c.degree()>=b.degree())return null}d=g.getCoefficient(0);if(0===d)return null;a=a.inverse(d);return[g.multiply(a),c.multiply(a)]}function W(a,b){let c=new Uint8ClampedArray(a.length);c.set(a);a=new X(285,256,0);var d=new w(a,c),e=new Uint8ClampedArray(b),g=!1;for(var f=0;f<b;f++){var h=d.evaluateAt(a.exp(f+a.generatorBase));e[e.length-1-f]=h;0!==h&&(g=!0)}if(!g)return c;
-d=new w(a,e);d=V(a,a.buildMonomial(b,1),d,b);if(null===d)return null;b=d[0];f=b.degree();if(1===f)b=[b.getCoefficient(1)];else{e=Array(f);g=0;for(h=1;h<a.size&&g<f;h++)0===b.evaluateAt(h)&&(e[g]=a.inverse(h),g++);b=g!==f?null:e}if(null==b)return null;d=d[1];e=b.length;g=Array(e);for(f=0;f<e;f++){h=a.inverse(b[f]);let c=1;for(let d=0;d<e;d++)f!==d&&(c=a.multiply(c,J(1,a.multiply(b[d],h))));g[f]=a.multiply(d.evaluateAt(h),a.inverse(c));0!==a.generatorBase&&(g[f]=a.multiply(g[f],h))}d=g;for(e=0;e<b.length;e++){g=
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-ecBlocks:[{numBlocks:1,dataCodewordsPerBlock:22},{numBlocks:15,dataCodewordsPerBlock:23}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:2,dataCodewordsPerBlock:14},{numBlocks:17,dataCodewordsPerBlock:15}]}]},{infoBits:76311,versionNumber:18,alignmentPatternCenters:[6,30,56,82],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:5,dataCodewordsPerBlock:120},{numBlocks:1,dataCodewordsPerBlock:121}]},{ecCodewordsPerBlock:26,ecBlocks:[{numBlocks:9,dataCodewordsPerBlock:43},{numBlocks:4,
-dataCodewordsPerBlock:44}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:22},{numBlocks:1,dataCodewordsPerBlock:23}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:2,dataCodewordsPerBlock:14},{numBlocks:19,dataCodewordsPerBlock:15}]}]},{infoBits:79154,versionNumber:19,alignmentPatternCenters:[6,30,58,86],errorCorrectionLevels:[{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:3,dataCodewordsPerBlock:113},{numBlocks:4,dataCodewordsPerBlock:114}]},{ecCodewordsPerBlock:26,ecBlocks:[{numBlocks:3,
-dataCodewordsPerBlock:44},{numBlocks:11,dataCodewordsPerBlock:45}]},{ecCodewordsPerBlock:26,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:21},{numBlocks:4,dataCodewordsPerBlock:22}]},{ecCodewordsPerBlock:26,ecBlocks:[{numBlocks:9,dataCodewordsPerBlock:13},{numBlocks:16,dataCodewordsPerBlock:14}]}]},{infoBits:84390,versionNumber:20,alignmentPatternCenters:[6,34,62,90],errorCorrectionLevels:[{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:3,dataCodewordsPerBlock:107},{numBlocks:5,dataCodewordsPerBlock:108}]},
-{ecCodewordsPerBlock:26,ecBlocks:[{numBlocks:3,dataCodewordsPerBlock:41},{numBlocks:13,dataCodewordsPerBlock:42}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:15,dataCodewordsPerBlock:24},{numBlocks:5,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:15,dataCodewordsPerBlock:15},{numBlocks:10,dataCodewordsPerBlock:16}]}]},{infoBits:87683,versionNumber:21,alignmentPatternCenters:[6,28,50,72,94],errorCorrectionLevels:[{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:4,dataCodewordsPerBlock:116},
-{numBlocks:4,dataCodewordsPerBlock:117}]},{ecCodewordsPerBlock:26,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:42}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:22},{numBlocks:6,dataCodewordsPerBlock:23}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:19,dataCodewordsPerBlock:16},{numBlocks:6,dataCodewordsPerBlock:17}]}]},{infoBits:92361,versionNumber:22,alignmentPatternCenters:[6,26,50,74,98],errorCorrectionLevels:[{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:2,dataCodewordsPerBlock:111},
-{numBlocks:7,dataCodewordsPerBlock:112}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:46}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:7,dataCodewordsPerBlock:24},{numBlocks:16,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:24,ecBlocks:[{numBlocks:34,dataCodewordsPerBlock:13}]}]},{infoBits:96236,versionNumber:23,alignmentPatternCenters:[6,30,54,74,102],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:4,dataCodewordsPerBlock:121},{numBlocks:5,dataCodewordsPerBlock:122}]},
-{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:4,dataCodewordsPerBlock:47},{numBlocks:14,dataCodewordsPerBlock:48}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:11,dataCodewordsPerBlock:24},{numBlocks:14,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:16,dataCodewordsPerBlock:15},{numBlocks:14,dataCodewordsPerBlock:16}]}]},{infoBits:102084,versionNumber:24,alignmentPatternCenters:[6,28,54,80,106],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:6,dataCodewordsPerBlock:117},
-{numBlocks:4,dataCodewordsPerBlock:118}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:6,dataCodewordsPerBlock:45},{numBlocks:14,dataCodewordsPerBlock:46}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:11,dataCodewordsPerBlock:24},{numBlocks:16,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:30,dataCodewordsPerBlock:16},{numBlocks:2,dataCodewordsPerBlock:17}]}]},{infoBits:102881,versionNumber:25,alignmentPatternCenters:[6,32,58,84,110],errorCorrectionLevels:[{ecCodewordsPerBlock:26,
-ecBlocks:[{numBlocks:8,dataCodewordsPerBlock:106},{numBlocks:4,dataCodewordsPerBlock:107}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:8,dataCodewordsPerBlock:47},{numBlocks:13,dataCodewordsPerBlock:48}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:7,dataCodewordsPerBlock:24},{numBlocks:22,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:22,dataCodewordsPerBlock:15},{numBlocks:13,dataCodewordsPerBlock:16}]}]},{infoBits:110507,versionNumber:26,alignmentPatternCenters:[6,
-30,58,86,114],errorCorrectionLevels:[{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:10,dataCodewordsPerBlock:114},{numBlocks:2,dataCodewordsPerBlock:115}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:19,dataCodewordsPerBlock:46},{numBlocks:4,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:28,dataCodewordsPerBlock:22},{numBlocks:6,dataCodewordsPerBlock:23}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:33,dataCodewordsPerBlock:16},{numBlocks:4,dataCodewordsPerBlock:17}]}]},
-{infoBits:110734,versionNumber:27,alignmentPatternCenters:[6,34,62,90,118],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:8,dataCodewordsPerBlock:122},{numBlocks:4,dataCodewordsPerBlock:123}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:22,dataCodewordsPerBlock:45},{numBlocks:3,dataCodewordsPerBlock:46}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:8,dataCodewordsPerBlock:23},{numBlocks:26,dataCodewordsPerBlock:24}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:12,dataCodewordsPerBlock:15},
-{numBlocks:28,dataCodewordsPerBlock:16}]}]},{infoBits:117786,versionNumber:28,alignmentPatternCenters:[6,26,50,74,98,122],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:3,dataCodewordsPerBlock:117},{numBlocks:10,dataCodewordsPerBlock:118}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:3,dataCodewordsPerBlock:45},{numBlocks:23,dataCodewordsPerBlock:46}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:4,dataCodewordsPerBlock:24},{numBlocks:31,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,
-ecBlocks:[{numBlocks:11,dataCodewordsPerBlock:15},{numBlocks:31,dataCodewordsPerBlock:16}]}]},{infoBits:119615,versionNumber:29,alignmentPatternCenters:[6,30,54,78,102,126],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:7,dataCodewordsPerBlock:116},{numBlocks:7,dataCodewordsPerBlock:117}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:21,dataCodewordsPerBlock:45},{numBlocks:7,dataCodewordsPerBlock:46}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:1,dataCodewordsPerBlock:23},{numBlocks:37,
-dataCodewordsPerBlock:24}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:19,dataCodewordsPerBlock:15},{numBlocks:26,dataCodewordsPerBlock:16}]}]},{infoBits:126325,versionNumber:30,alignmentPatternCenters:[6,26,52,78,104,130],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:5,dataCodewordsPerBlock:115},{numBlocks:10,dataCodewordsPerBlock:116}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:19,dataCodewordsPerBlock:47},{numBlocks:10,dataCodewordsPerBlock:48}]},{ecCodewordsPerBlock:30,
-ecBlocks:[{numBlocks:15,dataCodewordsPerBlock:24},{numBlocks:25,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:23,dataCodewordsPerBlock:15},{numBlocks:25,dataCodewordsPerBlock:16}]}]},{infoBits:127568,versionNumber:31,alignmentPatternCenters:[6,30,56,82,108,134],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:13,dataCodewordsPerBlock:115},{numBlocks:3,dataCodewordsPerBlock:116}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:2,dataCodewordsPerBlock:46},
-{numBlocks:29,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:42,dataCodewordsPerBlock:24},{numBlocks:1,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:23,dataCodewordsPerBlock:15},{numBlocks:28,dataCodewordsPerBlock:16}]}]},{infoBits:133589,versionNumber:32,alignmentPatternCenters:[6,34,60,86,112,138],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:115}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:10,
-dataCodewordsPerBlock:46},{numBlocks:23,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:10,dataCodewordsPerBlock:24},{numBlocks:35,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:19,dataCodewordsPerBlock:15},{numBlocks:35,dataCodewordsPerBlock:16}]}]},{infoBits:136944,versionNumber:33,alignmentPatternCenters:[6,30,58,86,114,142],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:115},{numBlocks:1,dataCodewordsPerBlock:116}]},
-{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:14,dataCodewordsPerBlock:46},{numBlocks:21,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:29,dataCodewordsPerBlock:24},{numBlocks:19,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:11,dataCodewordsPerBlock:15},{numBlocks:46,dataCodewordsPerBlock:16}]}]},{infoBits:141498,versionNumber:34,alignmentPatternCenters:[6,34,62,90,118,146],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:13,dataCodewordsPerBlock:115},
-{numBlocks:6,dataCodewordsPerBlock:116}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:14,dataCodewordsPerBlock:46},{numBlocks:23,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:44,dataCodewordsPerBlock:24},{numBlocks:7,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:59,dataCodewordsPerBlock:16},{numBlocks:1,dataCodewordsPerBlock:17}]}]},{infoBits:145311,versionNumber:35,alignmentPatternCenters:[6,30,54,78,102,126,150],errorCorrectionLevels:[{ecCodewordsPerBlock:30,
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-{infoBits:152622,versionNumber:37,alignmentPatternCenters:[6,28,54,80,106,132,158],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:17,dataCodewordsPerBlock:122},{numBlocks:4,dataCodewordsPerBlock:123}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:29,dataCodewordsPerBlock:46},{numBlocks:14,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:49,dataCodewordsPerBlock:24},{numBlocks:10,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:24,
-dataCodewordsPerBlock:15},{numBlocks:46,dataCodewordsPerBlock:16}]}]},{infoBits:158308,versionNumber:38,alignmentPatternCenters:[6,32,58,84,110,136,162],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:4,dataCodewordsPerBlock:122},{numBlocks:18,dataCodewordsPerBlock:123}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:13,dataCodewordsPerBlock:46},{numBlocks:32,dataCodewordsPerBlock:47}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:48,dataCodewordsPerBlock:24},{numBlocks:14,dataCodewordsPerBlock:25}]},
-{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:42,dataCodewordsPerBlock:15},{numBlocks:32,dataCodewordsPerBlock:16}]}]},{infoBits:161089,versionNumber:39,alignmentPatternCenters:[6,26,54,82,110,138,166],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:20,dataCodewordsPerBlock:117},{numBlocks:4,dataCodewordsPerBlock:118}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:40,dataCodewordsPerBlock:47},{numBlocks:7,dataCodewordsPerBlock:48}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:43,
-dataCodewordsPerBlock:24},{numBlocks:22,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:10,dataCodewordsPerBlock:15},{numBlocks:67,dataCodewordsPerBlock:16}]}]},{infoBits:167017,versionNumber:40,alignmentPatternCenters:[6,30,58,86,114,142,170],errorCorrectionLevels:[{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:19,dataCodewordsPerBlock:118},{numBlocks:6,dataCodewordsPerBlock:119}]},{ecCodewordsPerBlock:28,ecBlocks:[{numBlocks:18,dataCodewordsPerBlock:47},{numBlocks:31,dataCodewordsPerBlock:48}]},
-{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:34,dataCodewordsPerBlock:24},{numBlocks:34,dataCodewordsPerBlock:25}]},{ecCodewordsPerBlock:30,ecBlocks:[{numBlocks:20,dataCodewordsPerBlock:15},{numBlocks:61,dataCodewordsPerBlock:16}]}]}],ca=[{bits:21522,formatInfo:{errorCorrectionLevel:1,dataMask:0}},{bits:20773,formatInfo:{errorCorrectionLevel:1,dataMask:1}},{bits:24188,formatInfo:{errorCorrectionLevel:1,dataMask:2}},{bits:23371,formatInfo:{errorCorrectionLevel:1,dataMask:3}},{bits:17913,formatInfo:{errorCorrectionLevel:1,
-dataMask:4}},{bits:16590,formatInfo:{errorCorrectionLevel:1,dataMask:5}},{bits:20375,formatInfo:{errorCorrectionLevel:1,dataMask:6}},{bits:19104,formatInfo:{errorCorrectionLevel:1,dataMask:7}},{bits:30660,formatInfo:{errorCorrectionLevel:0,dataMask:0}},{bits:29427,formatInfo:{errorCorrectionLevel:0,dataMask:1}},{bits:32170,formatInfo:{errorCorrectionLevel:0,dataMask:2}},{bits:30877,formatInfo:{errorCorrectionLevel:0,dataMask:3}},{bits:26159,formatInfo:{errorCorrectionLevel:0,dataMask:4}},{bits:25368,
-formatInfo:{errorCorrectionLevel:0,dataMask:5}},{bits:27713,formatInfo:{errorCorrectionLevel:0,dataMask:6}},{bits:26998,formatInfo:{errorCorrectionLevel:0,dataMask:7}},{bits:5769,formatInfo:{errorCorrectionLevel:3,dataMask:0}},{bits:5054,formatInfo:{errorCorrectionLevel:3,dataMask:1}},{bits:7399,formatInfo:{errorCorrectionLevel:3,dataMask:2}},{bits:6608,formatInfo:{errorCorrectionLevel:3,dataMask:3}},{bits:1890,formatInfo:{errorCorrectionLevel:3,dataMask:4}},{bits:597,formatInfo:{errorCorrectionLevel:3,
-dataMask:5}},{bits:3340,formatInfo:{errorCorrectionLevel:3,dataMask:6}},{bits:2107,formatInfo:{errorCorrectionLevel:3,dataMask:7}},{bits:13663,formatInfo:{errorCorrectionLevel:2,dataMask:0}},{bits:12392,formatInfo:{errorCorrectionLevel:2,dataMask:1}},{bits:16177,formatInfo:{errorCorrectionLevel:2,dataMask:2}},{bits:14854,formatInfo:{errorCorrectionLevel:2,dataMask:3}},{bits:9396,formatInfo:{errorCorrectionLevel:2,dataMask:4}},{bits:8579,formatInfo:{errorCorrectionLevel:2,dataMask:5}},{bits:11994,
-formatInfo:{errorCorrectionLevel:2,dataMask:6}},{bits:11245,formatInfo:{errorCorrectionLevel:2,dataMask:7}}],Z=[(a)=>0===(a.y+a.x)%2,(a)=>0===a.y%2,(a)=>0===a.x%3,(a)=>0===(a.y+a.x)%3,(a)=>0===(Math.floor(a.y/2)+Math.floor(a.x/3))%2,(a)=>0===a.x*a.y%2+a.x*a.y%3,(a)=>0===(a.y*a.x%2+a.y*a.x%3)%2,(a)=>0===((a.y+a.x)%2+a.y*a.x%3)%2],x=(a,b)=>Math.sqrt(Math.pow(b.x-a.x,2)+Math.pow(b.y-a.y,2)),ka={inversionAttempts:"attemptBoth",greyScaleWeights:{red:.2126,green:.7152,blue:.0722,useIntegerApproximation:!1},
-canOverwriteImage:!0};I.default=I;let H="dontInvert",D={red:77,green:150,blue:29,useIntegerApproximation:!0};self.onmessage=(a)=>{let b=a.data.data;switch(a.data.type){case "decode":a=I(b.data,b.width,b.height,{inversionAttempts:H,greyScaleWeights:D});self.postMessage({type:"qrResult",data:a?a:null});break;case "grayscaleWeights":D.red=b.red;D.green=b.green;D.blue=b.blue;D.useIntegerApproximation=b.useIntegerApproximation;break;case "inversionMode":switch(b){case "original":H="dontInvert";break;
-case "invert":H="attemptBoth";break;case "both":H="attemptBoth";break;default:throw Error("Invalid inversion mode");}break;case "close":self.close()}}})();
-//# sourceMappingURL=qr-scanner-worker.min.js.map

external/qrcodejs

@@ -0,0 +1 @@
+Subproject commit 04f46c6a0708418cb7b96fc563eacae0fbf77674