Re: [PATCH v7 00/11] VP9 codec V4L2 control interface

From: Hans Verkuil
Date: Tue Nov 16 2021 - 03:21:44 EST

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In reply to: Andrzej Pietrasiewicz: "Re: [PATCH v7 00/11] VP9 codec V4L2 control interface"
Next in thread: Andrzej Pietrasiewicz: "Re: [PATCH v7 00/11] VP9 codec V4L2 control interface"
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On 16/11/2021 09:09, Andrzej Pietrasiewicz wrote:
> Hi Hans,
>
> W dniu 15.11.2021 o 22:16, Hans Verkuil pisze:
>> On 15/11/2021 18:14, Andrzej Pietrasiewicz wrote:
>>> Hi Hans,
>>>
>>> W dniu 15.11.2021 o 16:07, Hans Verkuil pisze:
>>>> Andrzej,
>>>>
>>>> Can you rebase this series on top of the master branch of
>>>> https://git.linuxtv.org/media_stage.git/ ? Unfortunately this v7 no longer
>>>> applies. Specifically "rkvdec: Add the VP9 backend" failed in a non-trivial
>>>> manner.
>>>
>>> This is a branch for you:
>>>
>>> https://gitlab.collabora.com/linux/for-upstream/-/tree/vp9-uapi
>>
>> I'm getting a bunch of sparse/smatch warnings:
>>
>
> Thanks for finding this, I will re-create the branch and let you know on irc.
> Some of the below are "false positives, namely:
>
> drivers/media/platform/omap3isp/omap3isp.h
> drivers/media/platform/qcom/venus/core.h

Ah, sorry, I though I had filtered those out. Obviously you can ignore those.

Please post a v8. That way the series is archived on lore. And it works better
with patchwork.

Regards,

Hans

>
> which are not touched by the series.
>
> Regards,
>
> Andrzej
>
>> sparse:
>> rkvdec/rkvdec-vp9.c:190:43: warning: variable 'dec_params' set but not used [-Wunused-but-set-variable]
>> rkvdec/rkvdec-vp9.c:245:43: warning: variable 'dec_params' set but not used [-Wunused-but-set-variable]
>> SPARSE:hantro/hantro_postproc.c hantro/hantro_postproc.c:37:35: warning: symbol 'hantro_g1_postproc_regs' was not declared. Should it be static?
>>
>> smatch:
>> rkvdec/rkvdec-vp9.c:190:43: warning: variable 'dec_params' set but not used [-Wunused-but-set-variable]
>> rkvdec/rkvdec-vp9.c:245:43: warning: variable 'dec_params' set but not used [-Wunused-but-set-variable]
>> rkvdec/rkvdec-vp9.c: rkvdec/rkvdec-vp9.c:236 init_intra_only_probs() error: buffer overflow 'ptr' 90 <= 91
>> hantro/hantro_g2_vp9_dec.c: hantro/hantro_g2_vp9_dec.c:670 config_probs() error: memcpy() 'adaptive->inter_mode[i]' too small (4 vs 21)
>> hantro/hantro_g2_vp9_dec.c: hantro/hantro_g2_vp9_dec.c:670 config_probs() error: memcpy() 'probs->inter_mode[i]' too small (3 vs 21
>>
>> Also a bunch of kerneldoc warnings:
>>
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'joint' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'sign' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'classes' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'class0_bit' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'bits' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'class0_fr' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'fr' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'class0_hp' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:30: warning: Function parameter or member 'hp' not described in 'v4l2_vp9_frame_mv_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'tx8' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'tx16' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'tx32' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'coef' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'skip' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'inter_mode' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'interp_filter' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'is_inter' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'comp_mode' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'single_ref' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'comp_ref' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'y_mode' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'uv_mode' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'partition' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:58: warning: Function parameter or member 'mv' not described in 'v4l2_vp9_frame_context'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'partition' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'skip' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'intra_inter' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'tx32p' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'tx16p' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'tx8p' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'y_mode' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'uv_mode' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'comp' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'comp_ref' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'single_ref' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'mv_mode' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'filter' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'mv_joint' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'sign' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'classes' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'class0' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'bits' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'class0_fp' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'fp' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'class0_hp' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'hp' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'coeff' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:93: warning: Function parameter or member 'eob' not described in 'v4l2_vp9_frame_symbol_counts'
>> include/media/v4l2-vp9.h:166: warning: expecting prototype for v4l2_vp9_adapt_coef_probs(). Prototype was for v4l2_vp9_adapt_noncoef_probs()
>> instead
>> drivers/media/platform/omap3isp/omap3isp.h:107: warning: Function parameter or member 'vp_clk_pol' not described in 'isp_ccp2_cfg'
>> drivers/media/platform/omap3isp/omap3isp.h:107: warning: Function parameter or member 'lanecfg' not described in 'isp_ccp2_cfg'
>> drivers/media/platform/qcom/venus/core.h:202: warning: Function parameter or member 'sys_err_done' not described in 'venus_core'
>> drivers/media/platform/qcom/venus/core.h:462: warning: Function parameter or member 'fw_min_cnt' not described in 'venus_inst'
>> drivers/media/platform/qcom/venus/core.h:462: warning: Function parameter or member 'flags' not described in 'venus_inst'
>> drivers/media/platform/qcom/venus/core.h:462: warning: Function parameter or member 'dpb_ids' not described in 'venus_inst'
>> drivers/staging/media/hantro/hantro.h:115: warning: Enum value 'HANTRO_MODE_VP9_DEC' not described in enum 'hantro_codec_mode'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'tile_edge' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'segment_map' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'misc' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'cnts' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'probability_tables' not described in
>> 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'frame_context' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'cur' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'last' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'bsd_ctrl_offset' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'segment_map_size' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'ctx_counters_offset' not described in
>> 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'tile_info_offset' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'tile_r_info' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'tile_c_info' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'last_tile_r' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'last_tile_c' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'last_sbs_r' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'last_sbs_c' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'active_segment' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'feature_enabled' not described in 'hantro_vp9_dec_hw_ctx'
>> drivers/staging/media/hantro/hantro_hw.h:211: warning: Function parameter or member 'feature_data' not described in 'hantro_vp9_dec_hw_ctx'
>>
>> You can test kerneldoc yourself with: scripts/kernel-doc -none include/media/v4l2-vp9.h
>>
>> Regards,
>>
>> Hans
>>
>>>
>>> Regards,
>>>
>>> Andrzej
>>>
>>>
>>>>
>>>> Regards,
>>>>
>>>> Hans
>>>>
>>>> On 29/09/2021 18:04, Andrzej Pietrasiewicz wrote:
>>>>> Dear all,
>>>>>
>>>>> This patch series adds VP9 codec V4L2 control interface and two drivers
>>>>> using the new controls. It is a follow-up of previous v6 series [1].
>>>>>
>>>>> In this iteration, we've implemented VP9 hardware decoding on two devices:
>>>>> Rockchip VDEC and Hantro G2, and tested on RK3399, i.MX8MQ and i.MX8MP.
>>>>> The i.MX8M driver needs proper power domains support, though, which is a
>>>>> subject of a different effort, but in all 3 cases we were able to run the
>>>>> drivers.
>>>>>
>>>>> GStreamer support is also available, the needed changes have been submitted
>>>>> by Daniel Almeida [2]. This MR is ready to be merged, and just needs the
>>>>> VP9 V4L2 controls to be merged and released.
>>>>>
>>>>> Both rkvdec and hantro drivers are passing a significant number of VP9 tests
>>>>> using Fluster[3]. There are still a few tests that are not passing, due to
>>>>> dynamic frame resize (not yet supported by V4L2) and small size videos
>>>>> (due to IP block limitations).
>>>>>
>>>>> The series adds the VP9 codec V4L2 control API as uAPI, so it aims at being
>>>>> merged without passing through staging, as agreed[4]. The ABI has been checked
>>>>> for padding and verified to contain no holes.
>>>>>
>>>>> [1] https://patchwork.linuxtv.org/project/linux-media/list/?series=6377
>>>>> [2] https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2144
>>>>> [3] https://github.com/fluendo/fluster
>>>>> [4] https://lore.kernel.org/linux-media/b8f83c93-67fd-09f5-9314-15746cbfdc61@xxxxxxxxx/
>>>>>
>>>>> The series depends on the YUV tiled format support prepared by Ezequiel:
>>>>> https://www.spinics.net/lists/linux-media/msg197047.html
>>>>>
>>>>> Rebased onto latest media_tree.
>>>>>
>>>>> Changes related to v6:
>>>>> - moved setting tile filter and tile bsd auxiliary buffer addresses so
>>>>> that they are always set, even if no tiles are used (thanks, Jernej)
>>>>> - added a comment near the place where the 32-bit DMA mask is applied
>>>>> (thanks, Nicolas)
>>>>> - improved consistency in register names (thanks, Nicolas)
>>>>>
>>>>> Changes related to v5:
>>>>> - improved the doc comments as per Ezequiel's review (thanks, Ezequiel)
>>>>> - improved pdf output of documentation
>>>>> - added Benjamin's Reviewed-by (thanks, Benjamin)
>>>>>
>>>>> Changes related to v4:
>>>>> - removed unused enum v4l2_vp9_intra_prediction_mode
>>>>> - converted remaining enums to defines to follow the convention
>>>>> - improved the documentation, in particular better documented how to use segmentation
>>>>> features
>>>>>
>>>>> Changes related to v3:
>>>>>
>>>>> Apply suggestions from Jernej's review (thanks, Jernej):
>>>>> - renamed a control and two structs:
>>>>> V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS =>
>>>>> V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR
>>>>> v4l2_ctrl_vp9_compressed_hdr_probs =>
>>>>> v4l2_ctrl_vp9_compressed_hdr
>>>>> v4l2_vp9_mv_compressed_hdr_probs => v4l2_vp9_mv_probs
>>>>> - moved tx_mode to v4l2_ctrl_vp9_compressed_hdr
>>>>> - fixed enum v4l2_vp9_ref_frame_sign_bias values (which are used to test a bitfield)
>>>>> - explicitly assigned values to all other vp9 enums
>>>>>
>>>>> Apply suggestion from Nicolas's review (thanks, Nicolas):
>>>>> - explicitly stated that the v4l2_ctrl_vp9_compressed_hdr control is optional
>>>>> and implemented only by drivers which need it
>>>>>
>>>>> Changes related to the RFC v2:
>>>>>
>>>>> - added another driver including a postprocessor to de-tile
>>>>> codec-specific tiling
>>>>> - reworked uAPI structs layout to follow VP8 style
>>>>> - changed validation of loop filter params
>>>>> - changed validation of segmentation params
>>>>> - changed validation of VP9 frame params
>>>>> - removed level lookup array from loop filter struct
>>>>> (can be computed by drivers)
>>>>> - renamed some enum values to match the spec more closely
>>>>> - V4L2 VP9 library changed the 'eob' member of
>>>>> 'struct v4l2_vp9_frame_symbol_counts' so that it is an array
>>>>> of pointers instead of an array of pointers to arrays
>>>>> (IPs such as g2 creatively pass parts of the 'eob' counts in
>>>>> the 'coeff' counts)
>>>>> - factored out several repeated portions of code
>>>>> - minor nitpicks and cleanups
>>>>>
>>>>> Andrzej Pietrasiewicz (6):
>>>>> media: uapi: Add VP9 stateless decoder controls
>>>>> media: Add VP9 v4l2 library
>>>>> media: hantro: Rename registers
>>>>> media: hantro: Prepare for other G2 codecs
>>>>> media: hantro: Support VP9 on the G2 core
>>>>> media: hantro: Support NV12 on the G2 core
>>>>>
>>>>> Boris Brezillon (1):
>>>>> media: rkvdec: Add the VP9 backend
>>>>>
>>>>> Ezequiel Garcia (4):
>>>>> hantro: postproc: Fix motion vector space size
>>>>> hantro: postproc: Introduce struct hantro_postproc_ops
>>>>> hantro: Simplify postprocessor
>>>>> hantro: Add quirk for NV12/NV12_4L4 capture format
>>>>>
>>>>> .../userspace-api/media/v4l/biblio.rst | 10 +
>>>>> .../media/v4l/ext-ctrls-codec-stateless.rst | 573 +++++
>>>>> .../media/v4l/pixfmt-compressed.rst | 15 +
>>>>> .../media/v4l/vidioc-g-ext-ctrls.rst | 8 +
>>>>> .../media/v4l/vidioc-queryctrl.rst | 12 +
>>>>> .../media/videodev2.h.rst.exceptions | 2 +
>>>>> drivers/media/v4l2-core/Kconfig | 4 +
>>>>> drivers/media/v4l2-core/Makefile | 1 +
>>>>> drivers/media/v4l2-core/v4l2-ctrls-core.c | 180 ++
>>>>> drivers/media/v4l2-core/v4l2-ctrls-defs.c | 8 +
>>>>> drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
>>>>> drivers/media/v4l2-core/v4l2-vp9.c | 1850 +++++++++++++++++
>>>>> drivers/staging/media/hantro/Kconfig | 1 +
>>>>> drivers/staging/media/hantro/Makefile | 7 +-
>>>>> drivers/staging/media/hantro/hantro.h | 40 +-
>>>>> drivers/staging/media/hantro/hantro_drv.c | 23 +-
>>>>> drivers/staging/media/hantro/hantro_g2.c | 27 +
>>>>> .../staging/media/hantro/hantro_g2_hevc_dec.c | 69 +-
>>>>> drivers/staging/media/hantro/hantro_g2_regs.h | 132 +-
>>>>> .../staging/media/hantro/hantro_g2_vp9_dec.c | 980 +++++++++
>>>>> drivers/staging/media/hantro/hantro_hw.h | 83 +-
>>>>> .../staging/media/hantro/hantro_postproc.c | 79 +-
>>>>> drivers/staging/media/hantro/hantro_v4l2.c | 20 +
>>>>> drivers/staging/media/hantro/hantro_vp9.c | 240 +++
>>>>> drivers/staging/media/hantro/hantro_vp9.h | 103 +
>>>>> drivers/staging/media/hantro/imx8m_vpu_hw.c | 38 +-
>>>>> .../staging/media/hantro/rockchip_vpu_hw.c | 7 +-
>>>>> .../staging/media/hantro/sama5d4_vdec_hw.c | 3 +-
>>>>> drivers/staging/media/rkvdec/Kconfig | 1 +
>>>>> drivers/staging/media/rkvdec/Makefile | 2 +-
>>>>> drivers/staging/media/rkvdec/rkvdec-vp9.c | 1078 ++++++++++
>>>>> drivers/staging/media/rkvdec/rkvdec.c | 52 +-
>>>>> drivers/staging/media/rkvdec/rkvdec.h | 12 +-
>>>>> include/media/v4l2-ctrls.h | 4 +
>>>>> include/media/v4l2-vp9.h | 182 ++
>>>>> include/uapi/linux/v4l2-controls.h | 284 +++
>>>>> include/uapi/linux/videodev2.h | 6 +
>>>>> 37 files changed, 6033 insertions(+), 104 deletions(-)
>>>>> create mode 100644 drivers/media/v4l2-core/v4l2-vp9.c
>>>>> create mode 100644 drivers/staging/media/hantro/hantro_g2.c
>>>>> create mode 100644 drivers/staging/media/hantro/hantro_g2_vp9_dec.c
>>>>> create mode 100644 drivers/staging/media/hantro/hantro_vp9.c
>>>>> create mode 100644 drivers/staging/media/hantro/hantro_vp9.h
>>>>> create mode 100644 drivers/staging/media/rkvdec/rkvdec-vp9.c
>>>>> create mode 100644 include/media/v4l2-vp9.h
>>>>>
>>>>>
>>>>> base-commit: e4e737bb5c170df6135a127739a9e6148ee3da82
>>>>>
>>>>
>>>
>>
>

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