Re: [PATCH v9 00/17] Move HEVC stateless controls out of staging

[Hans Verkuil]

Hi Benjamin,

On 6/17/22 10:35, 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).
> 
> version 9:
> - Reword some commit message
> - Use fls()
> - Remove useless padding at the end of hevc structures
> - Reword all _minus* field description
> - change CVS to codec video sequence
> - Fix various typo
> - Fix undefined label: v4l2-ctrl-flag-dynamic-array warning
> - fix the waring reported by 'scripts/kernel-doc -none
>   include/uapi/linux/v4l2-controls.h'

This looks great, all my tests (sparse, smatch, etc) pass and all my issues are now
addressed.

So all I need is some more Acked-by/Reviewed-by tags for this series, esp. from Nicolas.

Once I have that I'll make a PR for this.

Regards,

	Hans

> 
> This version has been tested with these branches:
> - GStreamer: https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/tree/HEVC_aligned_with_kernel_5.15
> - Linux: https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/tree/HEVC_UAPI_V9
> 
> With patches to decode 10-bits bitstream and produce P010 frames the Fluster score 
> which was 77/147 before, is now 141/147.
> The 10-bits series will comes after this because of it dependency to
> uAPI change. If you are curious you can find the WIP branch here:
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/WIP_HEVC_UAPI_V9
> 
> The 6 failing tests are:
> - PICSIZE_{A,B,C,D}_Bossen_1 where resolutions are to big for Hantro hardware.
> - WPP_D_ericsson_MAIN_2 and WPP_D_ericsson_MAIN10_2 are visually ok but some 
>   difference exist on 5 decoded frames. Some pixels values are no the same 
>   the very end of few lines.
> 
> version 8:
> - Same than v7 but rebased on media_stage/master
> 
> version 7:
> - Apply Jernej patches for Cedrus about bit offset definition and
>   V4L2_CID_STATELESS_HEVC_SLICE_PARAMS being a dynamic array control.
> - Based on media_tree/master
> 
> version 6:
> - Add short_term_ref_pic_set_size and long_term_ref_pic_set_size
>   in v4l2_ctrl_hevc_decode_params structure.
> - Change slice_pic_order_cnt type to s32 to match with PoC type.
> - Set V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag automatically when using
>   V4L2_CID_STATELESS_HEVC_SLICE_PARAMS control.
> - Add a define for max slices count
> - Stop using Hantro dedicated control.
> 
> version 5:
> - Change __u16 pic_order_cnt[2] into __s32 pic_order_cnt_val in
>   hevc_dpb_entry structure
> - Add defines for SEI pic_struct values (patch 4)
> - Fix numbers of bits computation in cedrus_h265_skip_bits() parameters
> - Fix num_short_term_ref_pic_sets and num_long_term_ref_pics_sps
>   documentation (patch 8)
> - Rebased on v5-18-rc1
> 
> Version 4:
> - Add num_entry_point_offsets field in  struct v4l2_ctrl_hevc_slice_params
> - Fix V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS name
> - Initialize control V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS
> - Fix space/tab issue in kernel-doc
> - Add patch to change data_bit_offset definition
> - Fix hantro-media SPDX license
> - put controls under stateless section in v4l2-ctrls-defs.c
> 
> Benjamin Gaignard (14):
>   media: uapi: HEVC: Add missing fields in HEVC controls
>   media: uapi: HEVC: Rename HEVC stateless controls with STATELESS
>     prefix
>   media: uapi: HEVC: Change pic_order_cnt definition in
>     v4l2_hevc_dpb_entry
>   media: uapi: HEVC: Add SEI pic struct flags
>   media: uapi: HEVC: Add documentation to uAPI structure
>   media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a
>     dynamic array
>   media: uapi: Move parsed HEVC pixel format out of staging
>   media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS control
>   media: uapi: Move the HEVC stateless control type out of staging
>   media: controls: Log HEVC stateless control in .std_log
>   media: hantro: Stop using Hantro dedicated control
>   media: uapi: HEVC: fix padding in v4l2 control structures
>   media: uapi: Change data_bit_offset definition
>   media: uapi: move HEVC stateless controls out of staging
> 
> 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
> 
>  .../media/v4l/ext-ctrls-codec-stateless.rst   | 897 ++++++++++++++++++
>  .../media/v4l/ext-ctrls-codec.rst             | 780 ---------------
>  .../media/v4l/pixfmt-compressed.rst           |   7 +-
>  .../media/v4l/vidioc-g-ext-ctrls.rst          |  20 +
>  .../media/v4l/vidioc-queryctrl.rst            |   8 +
>  .../media/videodev2.h.rst.exceptions          |   6 +
>  .../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     | 212 ++++-
>  drivers/media/v4l2-core/v4l2-ctrls-defs.c     |  38 +-
>  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     |  62 +-
>  .../staging/media/hantro/hantro_g2_hevc_dec.c |  44 +-
>  drivers/staging/media/hantro/hantro_hevc.c    |  10 +-
>  drivers/staging/media/hantro/hantro_hw.h      |   4 +-
>  drivers/staging/media/sunxi/cedrus/cedrus.c   |  26 +-
>  .../staging/media/sunxi/cedrus/cedrus_dec.c   |  10 +-
>  .../staging/media/sunxi/cedrus/cedrus_h265.c  |  23 +-
>  .../staging/media/sunxi/cedrus/cedrus_video.c |   1 -
>  include/media/hevc-ctrls.h                    | 250 -----
>  include/media/v4l2-ctrls.h                    |  48 +-
>  include/uapi/linux/v4l2-controls.h            | 459 +++++++++
>  include/uapi/linux/videodev2.h                |  13 +
>  24 files changed, 1826 insertions(+), 1226 deletions(-)
>  delete mode 100644 include/media/hevc-ctrls.h
>