Thread (19 messages) 19 messages, 4 authors, 2022-06-29

Re: [PATCH v2 1/7] media: Add P010 tiled format

From: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Date: 2022-06-28 19:05:48
Also in: linux-media, linux-rockchip, linux-staging, lkml

Hi Jernej,

Thanks for the patch.

On Thu, Jun 16, 2022 at 10:25:07PM +0200, Jernej Skrabec wrote:
From: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

Add P010 tiled format

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
[rebased and updated pixel format name]
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 drivers/media/v4l2-core/v4l2-common.c | 1 +
 drivers/media/v4l2-core/v4l2-ioctl.c  | 1 +
 include/uapi/linux/videodev2.h        | 1 +
We also need to add the documentation in
Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst.

See Benjamin's patch for reference:

commit 5374d8fb75f313294c7d97e85c22bead34d63f2b
Author: Benjamin Gaignard [off-list ref]
Date:   Thu May 19 08:11:46 2022 +0100

    media: Add P010 video format

    P010 is a YUV format with 10-bits per component with interleaved UV.
quoted hunk ↗ jump to hunk
 3 files changed, 3 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 1e38ad8906a2..e0fbe6ba4b6c 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -278,6 +278,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
 
 		/* Tiled YUV formats */
 		{ .format = V4L2_PIX_FMT_NV12_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
+		{ .format = V4L2_PIX_FMT_P010_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .hdiv = 2, .vdiv = 2 },
 
 		/* YUV planar formats, non contiguous variant */
 		{ .format = V4L2_PIX_FMT_YUV420M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 2 },
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index e2526701294e..e24d38c0a178 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1310,6 +1310,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
 	case V4L2_PIX_FMT_NV12_4L4:	descr = "Y/CbCr 4:2:0 (4x4 Linear)"; break;
 	case V4L2_PIX_FMT_NV12_16L16:	descr = "Y/CbCr 4:2:0 (16x16 Linear)"; break;
 	case V4L2_PIX_FMT_NV12_32L32:   descr = "Y/CbCr 4:2:0 (32x32 Linear)"; break;
+	case V4L2_PIX_FMT_P010_4L4:	descr = "P010 tiled"; break;
I would make this "10-bit Y/CbCr 4:2:0 (4x4 Linear)".

Thanks,
Ezequiel

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