Set (and unset) the V4L2_FMT_FLAG_META_LINE_BASED flag in struct
v4l2_fmtdesc based on the format after returning the driver callback for
enumerating formats. This way the drivers don't need to care about the
flag.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-ioctl.c | 16 ++++++++++++++++
include/uapi/linux/videodev2.h | 4 ++++
2 files changed, 20 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 2cfc9106857a..5e928e2a2beb 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1538,6 +1538,22 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
}
}
+ if (fmt->type == V4L2_BUF_TYPE_META_CAPTURE) {
+ switch (fmt->pixelformat) {
+ case V4L2_META_FMT_GENERIC_8:
+ case V4L2_META_FMT_GENERIC_CSI2_10:
+ case V4L2_META_FMT_GENERIC_CSI2_12:
+ case V4L2_META_FMT_GENERIC_CSI2_14:
+ case V4L2_META_FMT_GENERIC_CSI2_16:
+ case V4L2_META_FMT_GENERIC_CSI2_20:
+ case V4L2_META_FMT_GENERIC_CSI2_24:
+ fmt->flags |= V4L2_FMT_FLAG_META_LINE_BASED;
+ break;
+ default:
+ fmt->flags &= ~V4L2_FMT_FLAG_META_LINE_BASED;
+ }
+ }
+
if (descr)
WARN_ON(strscpy(fmt->description, descr, sz) < 0);
fmt->flags |= flags;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 647ce3419bd8..d944db7ae1ed 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -839,6 +839,10 @@ struct v4l2_pix_format {
#define V4L2_META_FMT_RK_ISP1_PARAMS v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */
#define V4L2_META_FMT_RK_ISP1_STAT_3A v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */
+/*
+ * Line-based metadata formats. Remember to update v4l_fill_fmtdesc() when
+ * adding new ones!
+ */
#define V4L2_META_FMT_GENERIC_8 v4l2_fourcc('M', 'E', 'T', '8') /* Generic 8-bit metadata */
#define V4L2_META_FMT_GENERIC_CSI2_10 v4l2_fourcc('M', 'C', '1', 'A') /* 10-bit CSI-2 packed 8-bit metadata */
#define V4L2_META_FMT_GENERIC_CSI2_12 v4l2_fourcc('M', 'C', '1', 'C') /* 12-bit CSI-2 packed 8-bit metadata */
--
2.39.2
