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

From: Benjamin Gaignard
Date: Tue Feb 15 2022 - 06:01:17 EST


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

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2.32.0