From b0c0a9eb5690ad03bedb8d2d64aee56e54f72a38 Mon Sep 17 00:00:00 2001
From: FredTsang <979738295@qq.com>
Date: Thu, 24 Apr 2025 22:08:23 +0800
Subject: [PATCH 1/2] feat(flv-demuxer): support 'dropSEI' config for H.264

---
 src/config.js            |  1 +
 src/demux/flv-demuxer.js | 12 ++++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/config.js b/src/config.js
index 512fd702..d7893cac 100644
--- a/src/config.js
+++ b/src/config.js
@@ -46,6 +46,7 @@ export const defaultConfig = {
     statisticsInfoReportInterval: 600,
 
     fixAudioTimestampGap: true,
+    dropSEI: false,
 
     accurateSeek: false,
     seekType: 'range',  // [range, param, custom]
diff --git a/src/demux/flv-demuxer.js b/src/demux/flv-demuxer.js
index f3681e7d..cf8c058b 100644
--- a/src/demux/flv-demuxer.js
+++ b/src/demux/flv-demuxer.js
@@ -1668,10 +1668,14 @@ class FLVDemuxer {
                 keyframe = true;
             }
 
-            let data = new Uint8Array(arrayBuffer, dataOffset + offset, lengthSize + naluSize);
-            let unit = {type: unitType, data: data};
-            units.push(unit);
-            length += data.byteLength;
+            if (this._config.dropSEI && unitType === 6) { // SEI
+                // skip SEI Nalu
+            } else {
+                let data = new Uint8Array(arrayBuffer, dataOffset + offset, lengthSize + naluSize);
+                let unit = {type: unitType, data: data};
+                units.push(unit);
+                length += data.byteLength;
+            }
 
             offset += lengthSize + naluSize;
         }

From 4eee2e0562432227857691cd8e3dd2399fe2f3f3 Mon Sep 17 00:00:00 2001
From: FredTsang <979738295@qq.com>
Date: Thu, 24 Apr 2025 22:15:53 +0800
Subject: [PATCH 2/2] feat(flv-demuxer): support 'dropSEI' config for HEVC

---
 src/demux/flv-demuxer.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/demux/flv-demuxer.js b/src/demux/flv-demuxer.js
index cf8c058b..a533c7e3 100644
--- a/src/demux/flv-demuxer.js
+++ b/src/demux/flv-demuxer.js
@@ -1730,10 +1730,14 @@ class FLVDemuxer {
                 keyframe = true;
             }
 
-            let data = new Uint8Array(arrayBuffer, dataOffset + offset, lengthSize + naluSize);
-            let unit = {type: unitType, data: data};
-            units.push(unit);
-            length += data.byteLength;
+            if (this._config.dropSEI && (uintType === 39 || uintType === 40)) { // SEI
+                // drop SEI Nalu
+            } else {
+                let data = new Uint8Array(arrayBuffer, dataOffset + offset, lengthSize + naluSize);
+                let unit = {type: unitType, data: data};
+                units.push(unit);
+                length += data.byteLength;
+            }
 
             offset += lengthSize + naluSize;
         }