diff -up chromium-133.0.6943.53/media/ffmpeg/ffmpeg_common.cc.me chromium-133.0.6943.53/media/ffmpeg/ffmpeg_common.cc
--- chromium-133.0.6943.53/media/ffmpeg/ffmpeg_common.cc.me	2025-02-09 19:57:35.117198035 +0100
+++ chromium-133.0.6943.53/media/ffmpeg/ffmpeg_common.cc	2025-02-09 22:57:26.429570196 +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 =
@@ -83,7 +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
   if (base::FeatureList::IsEnabled(kStrictFFmpegCodecs)) {