diff --git a/panda/src/ffmpeg/ffmpegAudioCursor.cxx b/panda/src/ffmpeg/ffmpegAudioCursor.cxx
index 022337da60..603edfa4d5 100644
--- a/panda/src/ffmpeg/ffmpegAudioCursor.cxx
+++ b/panda/src/ffmpeg/ffmpegAudioCursor.cxx
@@ -321,7 +321,9 @@ reload_buffer() {
           memcpy(_buffer, _frame->data[0], bufsize);
         }
       }
+#if LIBAVUTIL_VERSION_INT > AV_VERSION_INT(52, 19, 100)
       av_frame_unref(_frame);
+#endif
 #endif
 
       if (len < 0) {
diff --git a/panda/src/ffmpeg/ffmpegVirtualFile.cxx b/panda/src/ffmpeg/ffmpegVirtualFile.cxx
index e4be57b2ef..098a5ef471 100644
--- a/panda/src/ffmpeg/ffmpegVirtualFile.cxx
+++ b/panda/src/ffmpeg/ffmpegVirtualFile.cxx
@@ -188,7 +188,7 @@ open_subfile(const SubfileInfo &info) {
 void FfmpegVirtualFile::
 close() {
   if (_format_context != NULL) {
-#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(53, 25, 0)
+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(53, 17, 0)
     avformat_close_input(&_format_context);
 #else
     av_close_input_file(_format_context);