All of lore.kernel.org
 help / color / mirror / Atom feed
From: Martin Weber <martin.weber@br-automation.com>
To: "linux-media@vger.kernel.org" <linux-media@vger.kernel.org>
Cc: "p.zabel@pengutronix.de" <p.zabel@pengutronix.de>
Subject: [PATCH] V4L2_PIX_FMT_GREYSCALE for coda960 JPEG Encoder
Date: Tue, 9 Nov 2021 11:43:09 +0000	[thread overview]
Message-ID: <VI1PR0602MB35495D33CD3DD897F0A41D5ED3929@VI1PR0602MB3549.eurprd06.prod.outlook.com> (raw)

support greyscale pix fmt input for coda9_jpeg_encoder. The hardware
supports it, so allow V4L2 Mem2Mem JPEG Encoder use it as well. Tested
on an i.MX6QP.

Signed-off-by: Martin S. Weber <martin.weber@br-automation.com>
---
 drivers/media/platform/coda/coda-common.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 87a2c706f747..51b833a55690 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -43,7 +43,7 @@
 #define CODA_NAME		"coda"
 
 #define CODADX6_MAX_INSTANCES	4
-#define CODA_MAX_FORMATS	4
+#define CODA_MAX_FORMATS	5
 
 #define CODA_ISRAM_SIZE	(2048 * 2)
 
@@ -247,6 +247,7 @@ static const struct coda_video_device coda9_jpeg_encoder = {
 		V4L2_PIX_FMT_YUV420,
 		V4L2_PIX_FMT_YVU420,
 		V4L2_PIX_FMT_YUV422P,
+		V4L2_PIX_FMT_GREY,
 	},
 	.dst_formats = {
 		V4L2_PIX_FMT_JPEG,
@@ -626,6 +627,11 @@ static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
 		f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 					f->fmt.pix.height * 2;
 		break;
+	case V4L2_PIX_FMT_GREY:
+		/* keep 16 pixel alignment of 8-bit pixel data */
+		f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
+		f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
+		break;
 	case V4L2_PIX_FMT_JPEG:
 	case V4L2_PIX_FMT_H264:
 	case V4L2_PIX_FMT_MPEG4:
-- 
2.30.2

             reply	other threads:[~2021-11-09 11:43 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-09 11:43 Martin Weber [this message]
2021-11-11 16:17 ` [PATCH] V4L2_PIX_FMT_GREYSCALE for coda960 JPEG Encoder Philipp Zabel
2021-11-15 14:39   ` Hans Verkuil

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=VI1PR0602MB35495D33CD3DD897F0A41D5ED3929@VI1PR0602MB3549.eurprd06.prod.outlook.com \
    --to=martin.weber@br-automation.com \
    --cc=linux-media@vger.kernel.org \
    --cc=p.zabel@pengutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.