diff --git a/libavcodec/raw.c b/libavcodec/raw.c
index 14f47787c8be9ef2e8364bc802388048987305a3..41f5c9091a02ded10b9189a62f733daf4f8cf8f8 100644
--- a/libavcodec/raw.c
+++ b/libavcodec/raw.c
@@ -98,6 +98,8 @@ const PixelFormatTag ff_raw_pix_fmt_tags[] = {
     { PIX_FMT_RGB8,     MKTAG('R', 'G', 'B',  8 ) },
     { PIX_FMT_BGR4,     MKTAG('B', 'G', 'R',  4 ) },
     { PIX_FMT_RGB4,     MKTAG('R', 'G', 'B',  4 ) },
+    { PIX_FMT_RGB4_BYTE,MKTAG('B', '4', 'B', 'Y') },
+    { PIX_FMT_BGR4_BYTE,MKTAG('R', '4', 'B', 'Y') },
     { PIX_FMT_RGB48LE,  MKTAG('R', 'G', 'B', 48 ) },
     { PIX_FMT_RGB48BE,  MKTAG( 48, 'R', 'G', 'B') },
     { PIX_FMT_GRAY16LE,    MKTAG('Y', '1',  0 , 16 ) },
diff --git a/libavformat/nut.c b/libavformat/nut.c
index 658a8d003552bcd1f2e7702a5c160d05277f3a54..1c5a13994be1760a4c9ba51b01ba525a7c06a39b 100644
--- a/libavformat/nut.c
+++ b/libavformat/nut.c
@@ -63,6 +63,8 @@ const AVCodecTag ff_nut_video_tags[] = {
     { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B',  8 ) },
     { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R',  4 ) },
     { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B',  4 ) },
+    { CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },
+    { CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },
     { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) },
     { CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') },
     { CODEC_ID_RAWVIDEO, MKTAG('Y', '1',  0 , 16 ) },