Code refactoring for #1644

www/video-rtc.js

@@ -580,13 +580,14 @@ export class VideoRTC extends HTMLElement {
 
             /** @type {MediaStream} */
             const stream = video2.srcObject;
-            if (stream.getVideoTracks().length > 0) rtcPriority += 0x220;
+            if (stream.getVideoTracks().length > 0) {
+                // not the best, but a pretty simple way to check a codec
+                const isH265Supported =  this.pc.remoteDescription.sdp.includes('H265/90000');
+                rtcPriority += isH265Supported ? 0x240 : 0x220;
+            }
             if (stream.getAudioTracks().length > 0) rtcPriority += 0x102;
 
-            if (this.mseCodecs.indexOf('hvc1.')) {
+            if (this.mseCodecs.indexOf('hvc1.') >= 0) msePriority += 0x230;
-                if (VideoRTC.isH265Supported()) rtcPriority += 0x230;
-                else msePriority += 0x230;
-            }
             if (this.mseCodecs.indexOf('avc1.') >= 0) msePriority += 0x210;
             if (this.mseCodecs.indexOf('mp4a.') >= 0) msePriority += 0x101;
 
@@ -667,23 +668,6 @@ export class VideoRTC extends HTMLElement {
         this.send({type: 'mp4', value: this.codecs(this.video.canPlayType)});
     }
 
-    static isH265Supported() {
-        try {
-            const videoCodecs = RTCRtpSender?.getCapabilities('video')?.codecs;
-            
-            if (!videoCodecs) {
-            return false;
-            }
-            
-            return videoCodecs.some(codec => 
-                codec.mimeType.toLowerCase().includes('h265') || 
-                codec.mimeType.toLowerCase().includes('hevc')
-            );
-        } catch {
-            return false;
-        }
-    }
-
     static btoa(buffer) {
         const bytes = new Uint8Array(buffer);
         const len = bytes.byteLength;