diff --git a/libavcodec/pixdesc.h b/libavcodec/pixdesc.h
index e6d2dcd0df..d5f2be58c2 100644
--- a/libavcodec/pixdesc.h
+++ b/libavcodec/pixdesc.h
@@ -79,6 +79,7 @@ typedef struct AVPixFmtDescriptor{
 #define PIX_FMT_BE        1 ///< big-endian
 #define PIX_FMT_PAL       2 ///< Pixel format has a palette in data[1], values are indexes in this palette.
 #define PIX_FMT_BITSTREAM 4 ///< All values of a component are bit-wise packed end to end.
+#define PIX_FMT_HWACCEL   8 ///< Pixel format is an HW accelerated format.
 
 /**
  * The array of all the pixel format descriptors.