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authorMichael Niedermayer <michael@niedermayer.cc>2018-07-18 22:22:35 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2018-10-23 01:44:40 +0200
commit60493f388ca7552970e865ff76d39c963eca955f (patch)
tree7fdb5acdd4fe486ad3d51bacf008febc09b11bd7
parent961eeb4035c345e756c4bbf549f1a731e53322bf (diff)
downloadffmpeg-60493f388ca7552970e865ff76d39c963eca955f.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 c01c0575f7..fd7f6153c2 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -43,6 +43,10 @@
* 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