diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c
index 340abe830e..0700a53b5c 100644
--- a/libavcodec/avcodec.c
+++ b/libavcodec/avcodec.c
@@ -44,6 +44,13 @@
 #include "internal.h"
 #include "thread.h"
 
+/**
+ * Maximum size in bytes of extradata.
+ * This value was chosen such that every bit of the buffer is
+ * addressable by a 32-bit signed integer as used by get_bits.
+ */
+#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE)
+
 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
 {
     size_t i;
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 4dce9f6fbb..480b18b447 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -159,13 +159,6 @@ unsigned int ff_toupper4(unsigned int x);
 
 void ff_color_frame(AVFrame *frame, const int color[4]);
 
-/**
- * Maximum size in bytes of extradata.
- * This value was chosen such that every bit of the buffer is
- * addressable by a 32-bit signed integer as used by get_bits.
- */
-#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE)
-
 /**
  * 2^(x) for integer x
  * @return correctly rounded float