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authorMichael Niedermayer <michael@niedermayer.cc>2018-07-18 22:22:35 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2018-10-07 21:34:00 +0200
commit1a4a6d94ccb9be41e8ade9b26f5230b39b14b6e0 (patch)
treebef9465f5f64ec9f799067f88ead23d00c0d5479
parent2be51cbeea352ea5fdfd3a4751f1960ba522174d (diff)
downloadffmpeg-1a4a6d94ccb9be41e8ade9b26f5230b39b14b6e0.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 e184a56672..34a1531489 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