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From:   Adam Ford <aford173@gmail.com>
Date:   Sat, 2 Apr 2022 11:22:23 -0500
Message-ID: <CAHCN7xLy2381AFLWhLxk5YuRV7C=OwLX=XPXONX8sbkg-SqMjA@mail.gmail.com>
Subject: Re: [PATCH v4 00/15] Move HEVC stateless controls out of staging
To:     Benjamin Gaignard <benjamin.gaignard@collabora.com>
Cc:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        mripard@kernel.org, paul.kocialkowski@bootlin.com,
        Chen-Yu Tsai <wens@csie.org>,
        "jernej.skrabec" <jernej.skrabec@gmail.com>,
        Jonas Karlman <jonas@kwiboo.se>,
        Nicolas Dufresne <nicolas@ndufresne.ca>,
        linux-media <linux-media@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "open list:STAGING SUBSYSTEM" <linux-staging@lists.linux.dev>,
        arm-soc <linux-arm-kernel@lists.infradead.org>,
        linux-sunxi@lists.linux.dev, kernel <kernel@collabora.com>,
        knaerzche@gmail.com, jc@kynesim.co.uk
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On Fri, Apr 1, 2022 at 8:18 AM Benjamin Gaignard
<benjamin.gaignard@collabora.com> wrote:
>
>
> Le 31/03/2022 =C3=A0 08:53, Benjamin Gaignard a =C3=A9crit :
> >
> > Le 30/03/2022 =C3=A0 20:52, Adam Ford a =C3=A9crit :
> >> On Wed, Mar 30, 2022 at 2:53 AM Benjamin Gaignard
> >> <benjamin.gaignard@collabora.com> wrote:
> >>>
> >>> Le 28/02/2022 =C3=A0 15:08, Benjamin Gaignard a =C3=A9crit :
> >>>> 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).
> >>>>
> >>>> After the remarks done on version 2, I have completely reworked to
> >>>> patches
> >>>> split so changelogs are meaningless. I have also drop "RFC" from the
> >>>> titles.
> >>>>
> >>>> 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
> >>>>
> >>>> At the end fluster tests results on IMX8MQ is 77/147 for HEVC codec.
> >>> Dear reviewers,
> >>>
> >>> This series is waiting for your feedback,
> >> I tried several times with the suggested repos for both the kernel and
> >> g-streamer without success getting Fluster to pass any tests on the
> >> imx8mq.  I can try again but I likely won't get to it until this
> >> weekend.  If I can get it working, I'll test both the 8mq and 8mm.
> >
> > Thanks a lot for that.
> >
> > Benjamin
>
> Adam,
>
> You may need to check if h265parse and v4l2slh265dec are available on you=
r board.

I ran gst-inspect to see what showed up with 265 in the name.

# gst-inspect-1.0 |grep 265
libav:  avdec_h265: libav HEVC (High Efficiency Video Coding) decoder
rtp:  rtph265depay: RTP H265 depayloader
rtp:  rtph265pay: RTP H265 payloader
typefindfunctions: video/x-h265: h265, x265, 265
v4l2codecs:  v4l2slh265dec: V4L2 Stateless H.265 Video Decoder
videoparsersbad:  h265parse: H.265 parser

It appears I have both h265parse and v4l2slh265dec.

>
> fluster check if v4l2slh265dec is working fine with this command line:
>
> gst-launch-1.0 appsrc num-buffers=3D0 ! h265parse ! v4l2slh265dec ! fakes=
ink
>
> so if one of them is missing it won't work.

gst-launch-1.0 appsrc num-buffers=3D0 ! h265parse ! v4l2slh265dec ! fakesin=
k
Setting pipeline to PAUSED ...
0:00:00.098389938   526 0xaaaaf9d86ac0 ERROR     v4l2codecs-decoder
gstv4l2decoder.c:725:gst_v4l2_decoder_get_controls:<v4l2decoder2>
VIDIOC_G_EXT_CTRLS failed: Invalid argument
ERROR: from element
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0: Driver did not
report framing and start code method.
Additional debug info:
../subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2codech265dec.c(155):
gst_v4l2_codec_h265_dec_open ():
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0:
gst_v4l2_decoder_get_controls() failed: Invalid argument
ERROR: pipeline doesn't want to preroll.
ERROR: from element
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0: Could not
initialize supporting library.
Additional debug info:
../subprojects/gst-plugins-base/gst-libs/gst/video/gstvideodecoder.c(2909):
gst_video_decoder_change_state ():
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0:
Failed to open decoder
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

Does this mean I have a wrong version of the kernel and/or incomplete patch=
es?

adam
>
> Regards,
> Benjamin
>
> >
> >>
> >> adam
> >>> Thanks,
> >>> Benjamin
> >>>
> >>>> Benjamin
> >>>>
> >>>>
> >>>> Benjamin Gaignard (12):
> >>>>     media: uapi: HEVC: Add missing fields in HEVC controls
> >>>>     media: uapi: HEVC: Rename HEVC stateless controls with STATELESS
> >>>>       prefix
> >>>>     media: uapi: HEVC: Add document 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: uapi: Create a dedicated header for Hantro 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
> >>>>
> >>>>    .../userspace-api/media/drivers/hantro.rst    |   5 -
> >>>>    .../media/v4l/ext-ctrls-codec-stateless.rst   | 833
> >>>> ++++++++++++++++++
> >>>>    .../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          |   5 +
> >>>>    .../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     | 198 ++++-
> >>>>    drivers/media/v4l2-core/v4l2-ctrls-defs.c     |  37 +-
> >>>>    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  |   2 +-
> >>>>    include/media/hevc-ctrls.h                    | 250 ------
> >>>>    include/media/v4l2-ctrls.h                    |  48 +-
> >>>>    include/uapi/linux/hantro-media.h             |  19 +
> >>>>    include/uapi/linux/v4l2-controls.h            | 439 +++++++++
> >>>>    include/uapi/linux/videodev2.h                |  13 +
> >>>>    23 files changed, 1697 insertions(+), 1170 deletions(-)
> >>>>    delete mode 100644 include/media/hevc-ctrls.h
> >>>>    create mode 100644 include/uapi/linux/hantro-media.h
> >>>>