From 7836f2e47f8895e49d1e3fcbc96b9ff638c88600 Mon Sep 17 00:00:00 2001
From: seydx <dev@seydx.com>
Date: Tue, 11 Mar 2025 01:50:41 +0100
Subject: [PATCH 1/4] check h265

---
 www/video-rtc.js | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/www/video-rtc.js b/www/video-rtc.js
index fb872b45..518e242f 100644
--- a/www/video-rtc.js
+++ b/www/video-rtc.js
@@ -583,7 +583,7 @@ export class VideoRTC extends HTMLElement {
             if (stream.getVideoTracks().length > 0) rtcPriority += 0x220;
             if (stream.getAudioTracks().length > 0) rtcPriority += 0x102;
 
-            if (this.mseCodecs.indexOf('hvc1.') >= 0) msePriority += 0x230;
+            if (this.mseCodecs.indexOf('hvc1.') >= 0 && !VideoRTC.isH265Supported()) msePriority += 0x230;
             if (this.mseCodecs.indexOf('avc1.') >= 0) msePriority += 0x210;
             if (this.mseCodecs.indexOf('mp4a.') >= 0) msePriority += 0x101;
 
@@ -664,6 +664,23 @@ 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;

From b28ffa9543e5d71bcfd1e45f012af96a41ae99c8 Mon Sep 17 00:00:00 2001
From: seydx <dev@seydx.com>
Date: Tue, 11 Mar 2025 01:52:16 +0100
Subject: [PATCH 2/4] indentation

---
 www/video-rtc.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/www/video-rtc.js b/www/video-rtc.js
index 518e242f..143ee5a1 100644
--- a/www/video-rtc.js
+++ b/www/video-rtc.js
@@ -673,8 +673,8 @@ export class VideoRTC extends HTMLElement {
             }
             
             return videoCodecs.some(codec => 
-            codec.mimeType.toLowerCase().includes('h265') || 
-            codec.mimeType.toLowerCase().includes('hevc')
+                codec.mimeType.toLowerCase().includes('h265') || 
+                codec.mimeType.toLowerCase().includes('hevc')
             );
         } catch {
             return false;

From ac96b64c64d04df8d0882bbd31f6978310d60f56 Mon Sep 17 00:00:00 2001
From: seydx <dev@seydx.com>
Date: Sun, 16 Mar 2025 14:16:01 +0100
Subject: [PATCH 3/4] change codec priority handling for h265

---
 www/video-rtc.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/www/video-rtc.js b/www/video-rtc.js
index 143ee5a1..7efa0a57 100644
--- a/www/video-rtc.js
+++ b/www/video-rtc.js
@@ -583,7 +583,10 @@ export class VideoRTC extends HTMLElement {
             if (stream.getVideoTracks().length > 0) rtcPriority += 0x220;
             if (stream.getAudioTracks().length > 0) rtcPriority += 0x102;
 
-            if (this.mseCodecs.indexOf('hvc1.') >= 0 && !VideoRTC.isH265Supported()) msePriority += 0x230;
+            if (this.mseCodecs.indexOf('hvc1.')) {
+                if (VideoRTC.isH265Supported()) rtcPriority += 0x230;
+                else msePriority += 0x230;
+            }
             if (this.mseCodecs.indexOf('avc1.') >= 0) msePriority += 0x210;
             if (this.mseCodecs.indexOf('mp4a.') >= 0) msePriority += 0x101;
 

From d697bdcf059c303fcf08edb6303dc3cbc3882b8e Mon Sep 17 00:00:00 2001
From: Alex X <alexey.khit@gmail.com>
Date: Mon, 29 Sep 2025 18:21:36 +0300
Subject: [PATCH 4/4] Code refactoring for #1644

---
 www/video-rtc.js | 28 ++++++----------------------
 1 file changed, 6 insertions(+), 22 deletions(-)

diff --git a/www/video-rtc.js b/www/video-rtc.js
index 7efa0a57..a239c679 100644
--- a/www/video-rtc.js
+++ b/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 (VideoRTC.isH265Supported()) rtcPriority += 0x230;
-                else msePriority += 0x230;
-            }
+            if (this.mseCodecs.indexOf('hvc1.') >= 0) 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;