[FFmpeg-cvslog] pixdesc: fix and extend doxy for av_pix_fmt_get_chroma_sub_sample()

[Anton Khirnov]

ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Thu Jan 21 13:28:42 2016 +0100| [d336bfcf69fee159e9dba5e5e486ddb1aba61aab] | committer: Anton Khirnov

pixdesc: fix and extend doxy for av_pix_fmt_get_chroma_sub_sample()

The parameters in the docs are currently swapped.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d336bfcf69fee159e9dba5e5e486ddb1aba61aab
---

 libavutil/pixdesc.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h
index fe06d94..aea1e38 100644
--- a/libavutil/pixdesc.h
+++ b/libavutil/pixdesc.h
@@ -268,8 +268,8 @@ enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc);
  * the pixel format AVPixFmtDescriptor.
  *
  * @param[in]  pix_fmt the pixel format
- * @param[out] h_shift store log2_chroma_h
- * @param[out] v_shift store log2_chroma_w
+ * @param[out] h_shift store log2_chroma_w (horizontal/width shift)
+ * @param[out] v_shift store log2_chroma_h (vertical/height shift)
  *
  * @return 0 on success, AVERROR(ENOSYS) on invalid or unknown pixel format
  */