linux-kernel - [PATCH 1/5] media: rkvdec: h264: Support profile and level controls

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Message-Id: <20201112115714.48081-2-ezequiel@collabora.com>
Date:   Thu, 12 Nov 2020 08:57:10 -0300
From:   Ezequiel Garcia <ezequiel@...labora.com>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     kernel@...labora.com, Jonas Karlman <jonas@...boo.se>,
        Hans Verkuil <hverkuil@...all.nl>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Maxime Ripard <mripard@...nel.org>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Ezequiel Garcia <ezequiel@...labora.com>
Subject: [PATCH 1/5] media: rkvdec: h264: Support profile and level controls

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

The Rockchip Video Decoder used in RK3399 supports H.264 profiles from
Baseline to High 4:2:2 up to Level 5.1, except for the Extended profile.

Expose the V4L2_CID_MPEG_VIDEO_H264_PROFILE and the
V4L2_CID_MPEG_VIDEO_H264_LEVEL control, so that userspace can query the
driver for the list of supported profiles and level.

For now, we don't expose 4:2:2 since the driver doesn't
implement the required support.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
[Ezequiel: Don't expose 4:2:2 profile for now]
Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
---
 drivers/staging/media/rkvdec/rkvdec.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 552e0bd12ecf..fe65f55d3b49 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -82,6 +82,19 @@ static const struct rkvdec_ctrl_desc rkvdec_h264_ctrl_descs[] = {
 		.cfg.def = V4L2_MPEG_VIDEO_H264_START_CODE_ANNEX_B,
 		.cfg.max = V4L2_MPEG_VIDEO_H264_START_CODE_ANNEX_B,
 	},
+	{
+		.cfg.id = V4L2_CID_MPEG_VIDEO_H264_PROFILE,
+		.cfg.min = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
+		.cfg.max = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
+		.cfg.menu_skip_mask =
+			BIT(V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED),
+		.cfg.def = V4L2_MPEG_VIDEO_H264_PROFILE_MAIN,
+	},
+	{
+		.cfg.id = V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+		.cfg.min = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+		.cfg.max = V4L2_MPEG_VIDEO_H264_LEVEL_5_1,
+	},
 };
 
 static const struct rkvdec_ctrls rkvdec_h264_ctrls = {
-- 
2.27.0