[FFmpeg-cvslog] pixdesc: Use AV_CEIL_RSHIFT in documentation

[Vittorio Giovara]

ffmpeg | branch: master | Vittorio Giovara <vittorio.giovara at gmail.com> | Thu Jan 21 18:00:15 2016 -0500| [6695f178a5929eab91d3da7e9023999f1774bd0e] | committer: Vittorio Giovara

pixdesc: Use AV_CEIL_RSHIFT in documentation

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6695f178a5929eab91d3da7e9023999f1774bd0e
---

 libavutil/pixdesc.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h
index aea1e38..3bb10f7 100644
--- a/libavutil/pixdesc.h
+++ b/libavutil/pixdesc.h
@@ -84,16 +84,16 @@ typedef struct AVPixFmtDescriptor {
     /**
      * Amount to shift the luma width right to find the chroma width.
      * For YV12 this is 1 for example.
-     * chroma_width = -((-luma_width) >> log2_chroma_w)
+     * chroma_width = AV_CEIL_RSHIFT(luma_width, log2_chroma_w)
      * The note above is needed to ensure rounding up.
      * This value only refers to the chroma components.
      */
-    uint8_t log2_chroma_w;  ///< chroma_width = -((-luma_width )>>log2_chroma_w)
+    uint8_t log2_chroma_w;
 
     /**
      * Amount to shift the luma height right to find the chroma height.
      * For YV12 this is 1 for example.
-     * chroma_height= -((-luma_height) >> log2_chroma_h)
+     * chroma_height= AV_CEIL_RSHIFT(luma_height, log2_chroma_h)
      * The note above is needed to ensure rounding up.
      * This value only refers to the chroma components.
      */