linux-kernel - Re: [PATCH 0/4] Add Amlogic video decoder driver

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Date:   Fri, 31 Aug 2018 11:09:11 +0200
From:   Maxime Jourdan <mjourdan@...libre.com>
To:     Hans Verkuil <hverkuil@...all.nl>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH 0/4] Add Amlogic video decoder driver

2018-08-31 11:00 GMT+02:00 Hans Verkuil <hverkuil@...all.nl>:
>
> On 08/31/2018 10:52 AM, Maxime Jourdan wrote:
> > Hi everyone,
> >
> > This patch series adds support for the Amlogic video decoder,
> > as well as the corresponding dt bindings for GXBB/GXL/GXM chips.
> >
> > It features decoding for the following formats:
> > - MPEG 1
> > - MPEG 2
> >
> > The following formats will be added in future patches:
> > - MJPEG
> > - MPEG 4 (incl. Xvid, H.263)
> > - H.264
> > - HEVC (incl. 10-bit)
> >
> > The following formats' development has still not started, but they are
> > supported by the hardware:
> > - VC1
> > - VP9
> >
> > The code was made in such a way to allow easy inclusion of those formats
> > in the future.
> >
> > The decoder is single instance.
> >
> > Files:
> >  - vdec.c handles the V4L2 M2M logic
> >  - esparser.c manages the hardware bitstream parser
> >  - vdec_helpers.c provides helpers to DONE the dst buffers as well as
> >  various common code used by the codecs
> >  - vdec_1.c manages the VDEC_1 block of the vdec IP
> >  - codec_mpeg12.c enables decoding for MPEG 1/2.
> >  - vdec_platform.c links codec units with vdec units
> >  (e.g vdec_1 with codec_mpeg12) and lists all the available
> >  src/dst formats and requirements (max width/height, etc.),
> >  per compatible chip.
> >
> > Firmwares are necessary to run the vdec. They can currently be found at:
> > https://github.com/chewitt/meson-firmware
> >
> > It was tested primarily with ffmpeg's v4l2-m2m implementation. For instance:
> > $ ffmpeg -c:v mpeg2_v4l2m2m -i sample_mpeg2.mkv -f null -
> >
> > Note: This patch series depends on
> > "[PATCH v3 0/3] soc: amlogic: add meson-canvas"
> > https://patchwork.kernel.org/cover/10573763/
> >
> > The v4l2-compliance results are available below the patch diff.
> >
> > Maxime Jourdan (4):
> >   dt-bindings: media: add Amlogic Video Decoder Bindings
> >   media: meson: add v4l2 m2m video decoder driver
> >   ARM64: dts: meson-gx: add vdec entry
> >   ARM64: dts: meson: add vdec entries
> >
> >  .../bindings/media/amlogic,vdec.txt           |  63 ++
> >  arch/arm64/boot/dts/amlogic/meson-gx.dtsi     |  13 +
> >  arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi   |  11 +
> >  arch/arm64/boot/dts/amlogic/meson-gxl.dtsi    |  11 +
> >  arch/arm64/boot/dts/amlogic/meson-gxm.dtsi    |   4 +
> >  drivers/media/platform/Kconfig                |  10 +
> >  drivers/media/platform/meson/Makefile         |   1 +
> >  drivers/media/platform/meson/vdec/Makefile    |   8 +
> >  .../media/platform/meson/vdec/codec_mpeg12.c  | 169 +++
> >  .../media/platform/meson/vdec/codec_mpeg12.h  |  13 +
> >  drivers/media/platform/meson/vdec/dos_regs.h  |  97 ++
> >  drivers/media/platform/meson/vdec/esparser.c  | 367 +++++++
> >  drivers/media/platform/meson/vdec/esparser.h  |  27 +
> >  drivers/media/platform/meson/vdec/vdec.c      | 987 ++++++++++++++++++
> >  drivers/media/platform/meson/vdec/vdec.h      | 233 +++++
> >  drivers/media/platform/meson/vdec/vdec_1.c    | 227 ++++
> >  drivers/media/platform/meson/vdec/vdec_1.h    |  13 +
> >  .../media/platform/meson/vdec/vdec_helpers.c  | 353 +++++++
> >  .../media/platform/meson/vdec/vdec_helpers.h  |  44 +
> >  .../media/platform/meson/vdec/vdec_platform.c | 100 ++
> >  .../media/platform/meson/vdec/vdec_platform.h |  29 +
> >  21 files changed, 2780 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/amlogic,vdec.txt
> >  create mode 100644 drivers/media/platform/meson/vdec/Makefile
> >  create mode 100644 drivers/media/platform/meson/vdec/codec_mpeg12.c
> >  create mode 100644 drivers/media/platform/meson/vdec/codec_mpeg12.h
> >  create mode 100644 drivers/media/platform/meson/vdec/dos_regs.h
> >  create mode 100644 drivers/media/platform/meson/vdec/esparser.c
> >  create mode 100644 drivers/media/platform/meson/vdec/esparser.h
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec.c
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec.h
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec_1.c
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec_1.h
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec_helpers.c
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec_helpers.h
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec_platform.c
> >  create mode 100644 drivers/media/platform/meson/vdec/vdec_platform.h
> >
> > root@...retech-cc:~/v4l-utils# v4l2-compliance -d /dev/video0
> > v4l2-compliance SHA: not available, 64 bits
>
> I see that there is no SHA, so you probably didn't compile this from a
> checked-out git repo. Please do so, since without a SHA I don't know
> whether or not you used the latest v4l2-compliance version.

Noted, FWIW the last v4l-utils commit for this run is
e37fbf50a28c1a1cfe9e00a60542bc14192a87ba (Aug. 27).

I'll make sure to compile inside the git repo for the next submission.

Regards,
Maxime

> Regards,
>
>         Hans
>
> >
> > Compliance test for device /dev/video0:
> >
> > Driver Info:
> >       Driver name      : meson-vdec
> >       Card type        : Amlogic Video Decoder
> >       Bus info         : platform:meson-vdec
> >       Driver version   : 4.18.0
> >       Capabilities     : 0x84204000
> >               Video Memory-to-Memory Multiplanar
> >               Streaming
> >               Extended Pix Format
> >               Device Capabilities
> >       Device Caps      : 0x04204000
> >               Video Memory-to-Memory Multiplanar
> >               Streaming
> >               Extended Pix Format
> >
> > Required ioctls:
> >       test VIDIOC_QUERYCAP: OK
> >
> > Allow for multiple opens:
> >       test second /dev/video0 open: OK
> >       test VIDIOC_QUERYCAP: OK
> >       test VIDIOC_G/S_PRIORITY: OK
> >       test for unlimited opens: OK
> >
> > Debug ioctls:
> >       test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
> >       test VIDIOC_LOG_STATUS: OK (Not Supported)
> >
> > Input ioctls:
> >       test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
> >       test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> >       test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
> >       test VIDIOC_ENUMAUDIO: OK (Not Supported)
> >       test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
> >       test VIDIOC_G/S_AUDIO: OK (Not Supported)
> >       Inputs: 0 Audio Inputs: 0 Tuners: 0
> >
> > Output ioctls:
> >       test VIDIOC_G/S_MODULATOR: OK (Not Supported)
> >       test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> >       test VIDIOC_ENUMAUDOUT: OK (Not Supported)
> >       test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
> >       test VIDIOC_G/S_AUDOUT: OK (Not Supported)
> >       Outputs: 0 Audio Outputs: 0 Modulators: 0
> >
> > Input/Output configuration ioctls:
> >       test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
> >       test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
> >       test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
> >       test VIDIOC_G/S_EDID: OK (Not Supported)
> >
> > Control ioctls:
> >       test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
> >       test VIDIOC_QUERYCTRL: OK (Not Supported)
> >       test VIDIOC_G/S_CTRL: OK (Not Supported)
> >       test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
> >       test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
> >       test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
> >       Standard Controls: 0 Private Controls: 0
> >
> > Format ioctls:
> >       test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
> >       test VIDIOC_G/S_PARM: OK (Not Supported)
> >       test VIDIOC_G_FBUF: OK (Not Supported)
> >       test VIDIOC_G_FMT: OK
> >       test VIDIOC_TRY_FMT: OK
> >       test VIDIOC_S_FMT: OK
> >       test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
> >       test Cropping: OK (Not Supported)
> >       test Composing: OK (Not Supported)
> >       test Scaling: OK
> >
> > Codec ioctls:
> >       test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
> >       test VIDIOC_G_ENC_INDEX: OK (Not Supported)
> >       test VIDIOC_(TRY_)DECODER_CMD: OK
> >
> > Buffer ioctls:
> >       test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
> >       test VIDIOC_EXPBUF: OK
> >
> > Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
> >
>