linux-kernel - [PATCH v7 09/12] media: rkvdec: Add get_image

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250225-rkvdec_h264_high10_and_422_support-v7-9-7992a68a4910@collabora.com>
Date: Tue, 25 Feb 2025 10:40:30 +0100
From: Sebastian Fricke <sebastian.fricke@...labora.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Ezequiel Garcia <ezequiel@...guardiasur.com.ar>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Hans Verkuil <hverkuil@...all.nl>, 
 Boris Brezillon <boris.brezillon@...labora.com>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev, 
 Mauro Carvalho Chehab <mchehab+huawei@...nel.org>, 
 Alex Bee <knaerzche@...il.com>, 
 Nicolas Dufresne <nicolas.dufresne@...labora.com>, 
 Benjamin Gaignard <benjamin.gaignard@...labora.com>, 
 Detlev Casanova <detlev.casanova@...labora.com>, 
 Dan Carpenter <dan.carpenter@...aro.org>, Jonas Karlman <jonas@...boo.se>, 
 Christopher Obbard <christopher.obbard@...aro.org>
Subject: [PATCH v7 09/12] media: rkvdec: Add get_image_fmt ops

From: Jonas Karlman <jonas@...boo.se>

Add support for a get_image_fmt() ops that returns the required image
format.

The CAPTURE format is reset when the required image format changes and
the buffer queue is not busy.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
Tested-by: Christopher Obbard <chris.obbard@...labora.com>
---
 drivers/staging/media/rkvdec/rkvdec.c | 49 +++++++++++++++++++++++++++++++++--
 drivers/staging/media/rkvdec/rkvdec.h |  2 ++
 2 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 70154948b4e32e2c439f259b0f1e1bbc8b52b063..5394079509305c619f1d0c1f542bfc409317c3b7 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -111,15 +111,60 @@ static int rkvdec_try_ctrl(struct v4l2_ctrl *ctrl)
 {
 	struct rkvdec_ctx *ctx = container_of(ctrl->handler, struct rkvdec_ctx, ctrl_hdl);
 	const struct rkvdec_coded_fmt_desc *desc = ctx->coded_fmt_desc;
+	struct v4l2_pix_format_mplane *pix_mp = &ctx->decoded_fmt.fmt.pix_mp;
+	enum rkvdec_image_fmt image_fmt;
+	struct vb2_queue *vq;
+	int ret;
+
+	if (desc->ops->try_ctrl) {
+		ret = desc->ops->try_ctrl(ctx, ctrl);
+		if (ret)
+			return ret;
+	}
+
+	if (!desc->ops->get_image_fmt)
+		return 0;
 
-	if (desc->ops->try_ctrl)
-		return desc->ops->try_ctrl(ctx, ctrl);
+	image_fmt = desc->ops->get_image_fmt(ctx, ctrl);
+	if (ctx->image_fmt == image_fmt)
+		return 0;
+
+	if (rkvdec_is_valid_fmt(ctx, pix_mp->pixelformat, image_fmt))
+		return 0;
+
+	/* format change not allowed when queue is busy */
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+			     V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+	if (vb2_is_busy(vq))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int rkvdec_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct rkvdec_ctx *ctx = container_of(ctrl->handler, struct rkvdec_ctx, ctrl_hdl);
+	const struct rkvdec_coded_fmt_desc *desc = ctx->coded_fmt_desc;
+	struct v4l2_pix_format_mplane *pix_mp = &ctx->decoded_fmt.fmt.pix_mp;
+	enum rkvdec_image_fmt image_fmt;
+
+	if (!desc->ops->get_image_fmt)
+		return 0;
+
+	image_fmt = desc->ops->get_image_fmt(ctx, ctrl);
+	if (ctx->image_fmt == image_fmt)
+		return 0;
+
+	ctx->image_fmt = image_fmt;
+	if (!rkvdec_is_valid_fmt(ctx, pix_mp->pixelformat, ctx->image_fmt))
+		rkvdec_reset_decoded_fmt(ctx);
 
 	return 0;
 }
 
 static const struct v4l2_ctrl_ops rkvdec_ctrl_ops = {
 	.try_ctrl = rkvdec_try_ctrl,
+	.s_ctrl = rkvdec_s_ctrl,
 };
 
 static const struct rkvdec_ctrl_desc rkvdec_h264_ctrl_descs[] = {
diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
index 6f8cf50c5d99aad2f52e321f54f3ca17166ddf98..e466a2753ccfc13738e0a672bc578e521af2c3f2 100644
--- a/drivers/staging/media/rkvdec/rkvdec.h
+++ b/drivers/staging/media/rkvdec/rkvdec.h
@@ -73,6 +73,8 @@ struct rkvdec_coded_fmt_ops {
 		     struct vb2_v4l2_buffer *dst_buf,
 		     enum vb2_buffer_state result);
 	int (*try_ctrl)(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl);
+	enum rkvdec_image_fmt (*get_image_fmt)(struct rkvdec_ctx *ctx,
+					       struct v4l2_ctrl *ctrl);
 };
 
 enum rkvdec_image_fmt {

-- 
2.25.1