linux-kernel - [RFC v2 0/8] Move HEVC stateless controls out of staging

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Message-Id: <20220215110103.241297-1-benjamin.gaignard@collabora.com>
Date:   Tue, 15 Feb 2022 12:00:55 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     mchehab@...nel.org, ezequiel@...guardiasur.com.ar,
        p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
        mripard@...nel.org, paul.kocialkowski@...tlin.com, wens@...e.org,
        jernej.skrabec@...il.com, hverkuil-cisco@...all.nl,
        jonas@...boo.se, nicolas@...fresne.ca
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        kernel@...labora.com, knaerzche@...il.com, jc@...esim.co.uk,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [RFC v2 0/8] Move HEVC stateless controls out of staging

This series aims to make HEVC uapi stable and usable for hardware
decoder. HEVC uapi is used by 2 mainlined drivers (Cedrus and Hantro)
and 2 out of the tree drivers (rkvdec and RPI).

The 3 first patches are from Hans to implement v4l2 dynamic control
feature which is need by patch 7 for V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSET
definition.

Patch 4 move the existing uapi to stable, including definitions renaming 
and CID number change to fit with v4l2 naming.

Patches 5 and 7 add fields needed for rkvdec and RPI decoders.

Patches 6 is cleaning up the uapi of useless field.
Patches 8 change one field description and name to define offset by
bytes rather than by bits

Benjamin

Benjamin Gaignard (5):
  media: uapi: Move HEVC stateless controls out of staging
  media: uapi: Add fields needed for RKVDEC driver
  media: uapi: Remove bit_size field from v4l2_ctrl_hevc_slice_params
  media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSET control
  media: uapi: Change data_bit_offset definition

Hans Verkuil (3):
  videodev2.h: add V4L2_CTRL_FLAG_DYNAMIC_ARRAY
  v4l2-ctrls: add support for dynamically allocated arrays.
  vivid: add dynamic array test control

 .../userspace-api/media/drivers/hantro.rst    |   5 -
 .../media/v4l/ext-ctrls-codec.rst             |  58 ++--
 .../media/v4l/vidioc-queryctrl.rst            |   8 +
 .../media/test-drivers/vivid/vivid-ctrls.c    |  15 ++
 drivers/media/v4l2-core/v4l2-ctrls-api.c      | 103 ++++++--
 drivers/media/v4l2-core/v4l2-ctrls-core.c     | 182 ++++++++++---
 drivers/media/v4l2-core/v4l2-ctrls-defs.c     |  32 +--
 drivers/media/v4l2-core/v4l2-ctrls-priv.h     |   3 +-
 drivers/media/v4l2-core/v4l2-ctrls-request.c  |  13 +-
 drivers/staging/media/hantro/hantro_drv.c     |  27 +-
 drivers/staging/media/hantro/hantro_hevc.c    |   8 +-
 drivers/staging/media/sunxi/cedrus/cedrus.c   |  24 +-
 .../staging/media/sunxi/cedrus/cedrus_dec.c   |  10 +-
 .../staging/media/sunxi/cedrus/cedrus_h265.c  |  13 +-
 include/linux/hantro-media.h                  |  17 ++
 include/media/hevc-ctrls.h                    | 250 ------------------
 include/media/v4l2-ctrls.h                    |  48 +++-
 include/uapi/linux/v4l2-controls.h            | 224 ++++++++++++++++
 include/uapi/linux/videodev2.h                |   8 +
 19 files changed, 640 insertions(+), 408 deletions(-)
 create mode 100644 include/linux/hantro-media.h
 delete mode 100644 include/media/hevc-ctrls.h

-- 
2.32.0