--- a/media/libstagefright/binding/MP4Metadata.cpp
+++ b/media/libstagefright/binding/MP4Metadata.cpp
@@ -1030,16 +1030,17 @@ MP4MetadataRust::GetTrackInfo(mozilla::T
   switch (info.codec) {
     case mp4parse_codec_UNKNOWN: codec_string = "unknown"; break;
     case mp4parse_codec_AAC: codec_string = "aac"; break;
     case mp4parse_codec_OPUS: codec_string = "opus"; break;
     case mp4parse_codec_FLAC: codec_string = "flac"; break;
     case mp4parse_codec_AVC: codec_string = "h.264"; break;
     case mp4parse_codec_VP9: codec_string = "vp9"; break;
     case mp4parse_codec_MP3: codec_string = "mp3"; break;
+    case mp4parse_codec_MP4V: codec_string = "mp4v"; break;
   }
   MOZ_LOG(sLog, LogLevel::Debug, ("track codec %s (%u)\n",
         codec_string, info.codec));
 #endif
 
   // This specialization interface is crazy.
   UniquePtr<mozilla::TrackInfo> e;
   switch (aType) {