diff -up chromium-133.0.6943.98/media/ffmpeg/ffmpeg_common.cc.than chromium-133.0.6943.98/media/ffmpeg/ffmpeg_common.cc
--- chromium-133.0.6943.98/media/ffmpeg/ffmpeg_common.cc.than	2025-02-13 11:59:31.035724118 +0100
+++ chromium-133.0.6943.98/media/ffmpeg/ffmpeg_common.cc	2025-02-14 10:39:07.825746076 +0100
@@ -76,6 +76,8 @@ const char* GetAllowedVideoDecoders() {
 void ApplyCodecContextSecuritySettings(AVCodecContext* codec_context) {
   // Future versions of ffmpeg may copy the allow list from the format
   // context.
+  // Workaround for codec whitelist with system ffmpeg
+#if 0
   if (!codec_context->codec_whitelist) {
     // Note: FFmpeg will try to free this string, so we must duplicate it.
     codec_context->codec_whitelist =
@@ -83,6 +85,7 @@ void ApplyCodecContextSecuritySettings(A
                       ? GetAllowedAudioDecoders()
                       : GetAllowedVideoDecoders());
   }
+#endif
 
   // Note: This is security sensitive. FFmpeg may not always continue safely
   // in the presence of errors. See https://crbug.com/379418979
diff -up chromium-133.0.6943.98/media/filters/ffmpeg_glue.cc.than chromium-133.0.6943.98/media/filters/ffmpeg_glue.cc
--- chromium-133.0.6943.98/media/filters/ffmpeg_glue.cc.than	2025-02-14 10:14:13.360398193 +0100
+++ chromium-133.0.6943.98/media/filters/ffmpeg_glue.cc	2025-02-14 10:36:46.762332912 +0100
@@ -131,8 +131,10 @@ FFmpegGlue::FFmpegGlue(FFmpegURLProtocol
   // memory usage.
   //
   // Note: FFmpeg will try to free these strings, so we must duplicate them.
+#if 0
   format_context_->codec_whitelist = av_strdup(GetAllowedAudioDecoders());
   format_context_->format_whitelist = av_strdup(GetAllowedDemuxers());
+#endif
 }
 
 bool FFmpegGlue::OpenContext(bool is_local_file) {