Messages in this thread Patch in this message | | | From | Helen Koike <> | Subject | [PATCH 2/3] media: videodev2.h: clarify v4l2_pix_format_mplane.sizeimage docs when to set to zero | Date | Thu, 14 Jan 2021 15:01:48 -0300 |
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sizeimage field should be set to zero for unused planes, even when v4l2_pix_format_mplane.num_planes is smaller then the index of planes.
Signed-off-by: Helen Koike <helen.koike@collabora.com>
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I caught this with v4l2-compliance, which throws an error if we dirty planes, even if invalid, so I would like to make it clear in the docs. --- include/uapi/linux/videodev2.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 79dbde3bcf8d..d9b7c9177605 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -2227,6 +2227,7 @@ struct v4l2_mpeg_vbi_fmt_ivtv { * struct v4l2_plane_pix_format - additional, per-plane format definition * @sizeimage: maximum size in bytes required for data, for which * this plane will be used + * Drivers should be set it zero for unused planes. * @bytesperline: distance in bytes between the leftmost pixels in two * adjacent lines */ -- 2.29.2
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