avutil/pixfmt: clarify chroma location text further, as "first" is ambigous

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · acccc28713
parent a3b0130dee
commit acccc28713
1 changed files with 3 additions and 3 deletions
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@ -530,9 +530,9 @@ enum AVColorRange {
 /**
 * Location of chroma samples.
 *
- * Illustration showing the location of the first chroma sample,
- * the left shows only luma, the right
- * shows the location of the chroma samples, the 2 could be imagined to overlay
+ * Illustration showing the location of the first (top left) chroma sample of the
+ * image, the left shows only luma, the right
+ * shows the location of the chroma sample, the 2 could be imagined to overlay
 * each other but are drawn seperately due to limitations of ASCII
 *  ______        ______
 * |X   X ...    |3 4 X ...     X are luma samples,