From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: mchehab@kernel.org, ezequiel@vanguardiasur.com.ar,
p.zabel@pengutronix.de, gregkh@linuxfoundation.org,
mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org,
jernej.skrabec@gmail.com, jonas@kwiboo.se, nicolas@ndufresne.ca
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-staging@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, kernel@collabora.com,
knaerzche@gmail.com, jc@kynesim.co.uk,
Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: [PATCH v3 09/14] media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSET control
Date: Fri, 25 Feb 2022 17:45:55 +0100 [thread overview]
Message-ID: <20220225164600.1044663-10-benjamin.gaignard@collabora.com> (raw)
In-Reply-To: <20220225164600.1044663-1-benjamin.gaignard@collabora.com>
The number of 'entry point offset' could be very variable.
Rather than use a large static array define a v4l2 dynamic array
of integer control.
The number of entry point offsets is reported by the elems field.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../userspace-api/media/v4l/ext-ctrls-codec.rst | 9 +++++++++
include/media/hevc-ctrls.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 44a268a948c0..71f7dc1c1ccd 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -3128,6 +3128,15 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
\normalsize
+``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS (integer)``
+ Specifies the i-th entry point offset in bytes and is represented by
+ offset_len_minus1 plus 1 bits.
+ This control is a dynamically sized array. The number of entry point
+ offsets is reported by the ``elems`` field.
+ This bitstream parameter is defined according to :ref:`hevc`.
+ They are described in section 7.4.7.1 "General slice segment header
+ semantics" of the specification.
+
``V4L2_CID_STATELESS_HEVC_SCALING_MATRIX (struct)``
Specifies the HEVC scaling matrix parameters used for the scaling process
for transform coefficients.
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index 3016c1abb1d0..3f8a67924df3 100644
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -20,6 +20,7 @@
#define V4L2_CID_STATELESS_HEVC_DECODE_PARAMS (V4L2_CID_CODEC_BASE + 1012)
#define V4L2_CID_STATELESS_HEVC_DECODE_MODE (V4L2_CID_CODEC_BASE + 1015)
#define V4L2_CID_STATELESS_HEVC_START_CODE (V4L2_CID_CODEC_BASE + 1016)
+#define V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSET (V4L2_CID_CODEC_BASE + 1017)
/* enum v4l2_ctrl_type type values */
#define V4L2_CTRL_TYPE_HEVC_SPS 0x0120
--
2.32.0
next prev parent reply other threads:[~2022-02-25 16:46 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-25 16:45 [PATCH v3 00/14] Move HEVC stateless controls out of staging Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 01/14] videodev2.h: add V4L2_CTRL_FLAG_DYNAMIC_ARRAY Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 02/14] v4l2-ctrls: add support for dynamically allocated arrays Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 03/14] vivid: add dynamic array test control Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 04/14] media: uapi: HEVC: Add missing fields in HEVC controls Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 05/14] media: uapi: HEVC: Rename HEVC stateless controls with STATELESS prefix Benjamin Gaignard
2022-02-25 22:19 ` Jernej Škrabec
2022-02-25 16:45 ` [PATCH v3 06/14] media: uapi: HEVC: Add document uAPI structure Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 07/14] media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a dynamic array Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 08/14] media: uapi: Move parsed HEVC pixel format out of staging Benjamin Gaignard
2022-02-25 16:45 ` Benjamin Gaignard [this message]
2022-02-25 19:30 ` [PATCH v3 09/14] media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSET control Jernej Škrabec
2022-02-26 17:59 ` Jernej Škrabec
2022-02-26 18:17 ` Jernej Škrabec
2022-02-28 9:47 ` John Cox
2022-02-28 10:24 ` Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 10/14] media: uapi: Move the HEVC stateless control type out of staging Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 11/14] media: controls: Log HEVC stateless control in .std_log Benjamin Gaignard
2022-02-25 16:45 ` [PATCH v3 12/14] media: uapi: Create a dedicated header for Hantro control Benjamin Gaignard
2022-02-25 19:16 ` Jernej Škrabec
2022-02-25 16:45 ` [PATCH v3 13/14] media: uapi: HEVC: fix padding in v4l2 control structures Benjamin Gaignard
2022-02-25 16:46 ` [PATCH v3 14/14] media: uapi: move HEVC stateless controls out of staging Benjamin Gaignard
2022-02-25 19:33 ` [PATCH v3 00/14] Move " Jernej Škrabec
2022-02-26 22:25 ` Adam Ford
2022-02-28 10:13 ` Benjamin Gaignard
2022-03-03 1:23 ` Adam Ford
2022-03-03 10:13 ` Benjamin Gaignard
2022-03-04 12:59 ` Adam Ford
2022-03-04 13:03 ` Benjamin Gaignard
2022-03-04 22:46 ` Adam Ford
2022-03-07 8:49 ` Benjamin Gaignard
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