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Message-Id: <20200908123221.2793-2-stanimir.varbanov@linaro.org>
Date: Tue, 8 Sep 2020 15:32:16 +0300
From: Stanimir Varbanov <stanimir.varbanov@...aro.org>
To: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-media@...r.kernel.org
Cc: Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Neil Armstrong <narmstrong@...libre.com>,
nicolas.dufresne@...labora.com,
Stanimir Varbanov <stanimir.varbanov@...aro.org>
Subject: [PATCH v3 1/6] v4l2-ctrl: Add VP9 codec levels
Add menu control for VP9 codec levels. A total of 14 levels are
defined for Profile 0 (8bit) and Profile 2 (10bit). Each level
is a set of constrained bitstreams coded with targeted resolutions,
frame rates, and bitrates.
The definitions have been taken from webm project [1].
[1] https://www.webmproject.org/vp9/levels/
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
---
.../media/v4l/ext-ctrls-codec.rst | 43 +++++++++++++++++++
drivers/media/v4l2-core/v4l2-ctrls.c | 21 +++++++++
include/uapi/linux/v4l2-controls.h | 17 ++++++++
3 files changed, 81 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 289d380e2cf0..ce728c757eaf 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -3383,6 +3383,49 @@ enum v4l2_mpeg_video_vp9_profile -
* - ``V4L2_MPEG_VIDEO_VP9_PROFILE_3``
- Profile 3
+.. _v4l2-mpeg-video-vp9-level:
+
+``V4L2_CID_MPEG_VIDEO_VP9_LEVEL (enum)``
+
+enum v4l2_mpeg_video_vp9_level -
+ This control allows selecting the level for VP9 encoder.
+ This is also used to enumerate supported levels by VP9 encoder or decoder.
+ More information can be found at
+ `webmproject <https://www.webmproject.org/vp9/levels/>`__. Possible values are:
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_1_0``
+ - Level 1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_1_1``
+ - Level 1.1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_2_0``
+ - Level 2
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_2_1``
+ - Level 2.1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_3_0``
+ - Level 3
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_3_1``
+ - Level 3.1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_4_0``
+ - Level 4
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_4_1``
+ - Level 4.1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_5_0``
+ - Level 5
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_5_1``
+ - Level 5.1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_5_2``
+ - Level 5.2
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_6_0``
+ - Level 6
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_6_1``
+ - Level 6.1
+ * - ``V4L2_MPEG_VIDEO_VP9_LEVEL_6_2``
+ - Level 6.2
+
High Efficiency Video Coding (HEVC/H.265) Control Reference
===========================================================
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 73f3d65957ff..bd7f330c941c 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -475,6 +475,23 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
"3",
NULL,
};
+ static const char * const vp9_level[] = {
+ "1",
+ "1.1",
+ "2",
+ "2.1",
+ "3",
+ "3.1",
+ "4",
+ "4.1",
+ "5",
+ "5.1",
+ "5.2",
+ "6",
+ "6.1",
+ "6.2",
+ NULL,
+ };
static const char * const flash_led_mode[] = {
"Off",
@@ -694,6 +711,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
return vp8_profile;
case V4L2_CID_MPEG_VIDEO_VP9_PROFILE:
return vp9_profile;
+ case V4L2_CID_MPEG_VIDEO_VP9_LEVEL:
+ return vp9_level;
case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
return jpeg_chroma_subsampling;
case V4L2_CID_DV_TX_MODE:
@@ -950,6 +969,7 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_VPX_P_FRAME_QP: return "VPX P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_VP8_PROFILE: return "VP8 Profile";
case V4L2_CID_MPEG_VIDEO_VP9_PROFILE: return "VP9 Profile";
+ case V4L2_CID_MPEG_VIDEO_VP9_LEVEL: return "VP9 Level";
case V4L2_CID_MPEG_VIDEO_VP8_FRAME_HEADER: return "VP8 Frame Header";
/* HEVC controls */
@@ -1307,6 +1327,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL:
case V4L2_CID_MPEG_VIDEO_VP8_PROFILE:
case V4L2_CID_MPEG_VIDEO_VP9_PROFILE:
+ case V4L2_CID_MPEG_VIDEO_VP9_LEVEL:
case V4L2_CID_DETECT_MD_MODE:
case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE:
case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL:
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 053827cda8e6..a184c4939438 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -651,6 +651,23 @@ enum v4l2_mpeg_video_vp9_profile {
V4L2_MPEG_VIDEO_VP9_PROFILE_2 = 2,
V4L2_MPEG_VIDEO_VP9_PROFILE_3 = 3,
};
+#define V4L2_CID_MPEG_VIDEO_VP9_LEVEL (V4L2_CID_MPEG_BASE+513)
+enum v4l2_mpeg_video_vp9_level {
+ V4L2_MPEG_VIDEO_VP9_LEVEL_1_0 = 0,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_1_1 = 1,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_2_0 = 2,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_2_1 = 3,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_3_0 = 4,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_3_1 = 5,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_4_0 = 6,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_4_1 = 7,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_5_0 = 8,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_5_1 = 9,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_5_2 = 10,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_6_0 = 11,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_6_1 = 12,
+ V4L2_MPEG_VIDEO_VP9_LEVEL_6_2 = 13,
+};
/* CIDs for HEVC encoding. */
--
2.17.1
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