[FFmpeg-cvslog] avutil/pixfmt: Clarify the meaning of the alpha bits in rgb444 and similar formats

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Feb  6 20:57:00 2015 +0100| [dbab5f59849a1db5505c45e6610ad2e76da4f5ea] | committer: Michael Niedermayer

avutil/pixfmt: Clarify the meaning of the alpha bits in rgb444 and similar formats

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dbab5f59849a1db5505c45e6610ad2e76da4f5ea
---

 libavutil/pixfmt.h |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 84ae8fc..5c92677 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -141,10 +141,10 @@ enum AVPixelFormat {
 #endif
     AV_PIX_FMT_DXVA2_VLD,    ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
 
-    AV_PIX_FMT_RGB444LE,  ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), little-endian, most significant bits to 0
-    AV_PIX_FMT_RGB444BE,  ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), big-endian, most significant bits to 0
-    AV_PIX_FMT_BGR444LE,  ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), little-endian, most significant bits to 1
-    AV_PIX_FMT_BGR444BE,  ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), big-endian, most significant bits to 1
+    AV_PIX_FMT_RGB444LE,  ///< packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), little-endian, X=unused/undefined
+    AV_PIX_FMT_RGB444BE,  ///< packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), big-endian,    X=unused/undefined
+    AV_PIX_FMT_BGR444LE,  ///< packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), little-endian, X=unused/undefined
+    AV_PIX_FMT_BGR444BE,  ///< packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), big-endian,    X=unused/undefined
     AV_PIX_FMT_YA8,       ///< 8bit gray, 8bit alpha
 
     AV_PIX_FMT_Y400A = AV_PIX_FMT_YA8, ///< alias for AV_PIX_FMT_YA8