diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 4e02f046cd..68b1f266b2 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -614,7 +614,7 @@ typedef struct AVCodecDescriptor {
  * Note: If the first 23 bits of the additional bytes are not 0, then damaged
  * MPEG bitstreams could cause overread and segfault.
  */
-#define FF_INPUT_BUFFER_PADDING_SIZE 16
+#define FF_INPUT_BUFFER_PADDING_SIZE 32
 
 /**
  * @ingroup lavc_encoding