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SubjectRe: [RFC v2 0/8] Move HEVC stateless controls out of staging
From
Hi Benjamin,

On 15/02/2022 12:00, Benjamin Gaignard wrote:
> 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

I have some housekeeping questions:

I have several older HEVC-related patches from you, which of those are still
valid?

"[v4,0/9] Additional features for Hantro HEVC":
https://patchwork.linuxtv.org/project/linux-media/cover/20210625141143.577998-1-benjamin.gaignard@collabora.com/

"media: hevc: fix pictures lists type":
https://patchwork.linuxtv.org/project/linux-media/patch/20210823082949.237716-1-benjamin.gaignard@collabora.com/

"media: hantro: Trace hevc hw cycles performance register":
https://patchwork.linuxtv.org/project/linux-media/patch/20210823135606.633052-1-benjamin.gaignard@collabora.com/

"media: hantro: Add support of compressed reference buffers"
https://patchwork.linuxtv.org/project/linux-media/patch/20210823162916.824336-1-benjamin.gaignard@collabora.com/

Before moving the HEVC API out of staging I would prefer to have any remaining
issues fixed. So one series that adds any remaining fixes (i.e. from the older patches
mentioned above), and a second series on top that moves it out of staging.

That way I can mark the older patches as Superseded, and we have a
fresh series that we can discuss.

Regards,

Hans

>
> 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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