ffv1: document plane_count

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
FFmpeg · Aug 15, 2013 · 7fa692a · 7fa692a
1 parent dc84a70
commit 7fa692a
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/ffv1.lyx b/ffv1.lyx
@@ -3949,6 +3949,15 @@ error_status 0(no error), 1(slice contained a correctable error), 2(slice
  contains a uncorrectable error)
 \end_layout
 
+\begin_layout Labeling
+\labelwidthstring 12345678901234567890
+plane_count prior to version 4: without transparency: 2 else 3.
+\begin_inset Newline newline
+\end_inset
+
+version 4 and later: gray: 1, gray+alpha or color:2, color+alpha:3
+\end_layout
+
 \begin_layout Subsection
 Header
 \end_layout