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authorMichael Niedermayer <michael@niedermayer.cc>2018-07-18 22:22:35 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2018-11-01 00:52:46 +0100
commitea160f02137e515a7909b73eba172da008af614a (patch)
tree8e3b44200a475c6cba6fda4417b2bc1f99f1b559
parent5c98f8d80a50fb012deb1e4e24864dd52372a367 (diff)
downloadffmpeg-ea160f02137e515a7909b73eba172da008af614a.tar.gz
avutil/pixfmt: Document chroma plane size for odd resolutions
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit be0b77e6e83b61c2da338201b5ddfae1c9acedc5) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavutil/pixfmt.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 5dafc341a1..926bf5ae43 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -42,6 +42,10 @@
* This is stored as BGRA on little-endian CPU architectures and ARGB on
* big-endian CPUs.
*
+ * @note
+ * If the resolution is not a multiple of the chroma subsampling factor
+ * then the chroma plane resolution must be rounded up.
+ *
* @par
* When the pixel format is palettized RGB32 (AV_PIX_FMT_PAL8), the palettized
* image data is stored in AVFrame.data[0]. The palette is transported in