linux-kernel - Re: [PATCH v6 0/5] media: meson: vdec: Add VP9 decoding support

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Date:   Wed, 4 Mar 2020 10:30:27 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Hans Verkuil <hverkuil@...all.nl>, mchehab@...nel.org,
        hans.verkuil@...co.com
Cc:     linux-media@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 0/5] media: meson: vdec: Add VP9 decoding support

Hi,

On 03/03/2020 17:27, Hans Verkuil wrote:
> Hi Neil,
> 
> I still get sparse warnings:
> 
> drivers/staging/media/meson/vdec/codec_hevc_common.h:15:18: warning: 'vdec_hevc_parser_cmd' defined but not used [-Wunused-const-variable=]
> drivers/staging/media/meson/vdec/esparser.c:83: warning: Function parameter or member 'core' not described in 'vp9_update_header'
> drivers/staging/media/meson/vdec/esparser.c:83: warning: Function parameter or member 'buf' not described in 'vp9_update_header'
> drivers/staging/media/meson/vdec/codec_vp9.c:1333: warning: Function parameter or member 'sess' not described in 'codec_vp9_fetch_rpm'
> 
> They look trivial to fix to me.

Erf, I ran sparse, smatch and fixed everything but simply forgot to run W=1...

Will fix these and send a v7.

Neill

> 
> The v7 series is fine, but I prefer to wait until this v6 is OK as well so I can
> combine them in one PR.
> 
> Regards,
> 
> 	Hans
> 
> On 03/03/2020 15:37, Neil Armstrong wrote:
>> Hello,
>>
>> This patchset aims to bring VP9 decoding support to Amlogic GXL, G12A & SM1
>> platforms for the amlogic stateful video decoder driver.
>>
>> With this, it passes v4l2-compliance with streaming on Amlogic G12A and
>> Amlogic SM1 SoCs successfully using the stream at [1] with a fixed
>> pyv4l2compliance script for VP9 at [2].
>>
>> The original script kept the IVF headers in the stream, confusing the
>> decoder. The fixed script only extracts the payload from the IVF container.
>>
>> The decoder has been tested using the Google CTS TestVectorsIttiam VP9 yuv420
>> samples and the VP9 Decoder Performance streams at [5], decoding all streams from
>> Profile 0 and 2 up to Level 4.1, with 10bit downsampling to 8bit.
>>
>> This patchset depends on :
>> - H.264 and compliance v7 at [4]
>>
>> Changes since v5 at [9]:
>> - Fixed sparse warnings in codec_hevc_common.h/codec_vp9.c/vdec_hevc.c
>> - No smatch warnings issued
>>
>> Changes since v4 at [8]:
>> - Fixes checkpatch warning on patches 3 & 5
>>
>> Changes since v3 at [7]:
>> - fixes necessary spare ref buffer handling in parser
>> - added a comment to indicate how it's handled
>> - fix VP9 on SM1, was working with G12A firmware, but needed some changed with SM1 specific firmware
>> - pushed (gxl) and switched to missing (sm1) vp9 firmwares to linux-firmware repo
>>
>> Changes since v2 at [6]:
>> - Rebased on H.264 and compliance at [4]
>>
>> Changes since v1 at [3]:
>> - Fixed compliance for delta frame resize, but proper ref keeping is broken
>> - Added warns for delta frame resize, to be fixed in a following patchset
>> - Added VP9 probabilities parsing and transformation support to decore the VP9 performance streams
>> - Fixed refs keeping, avoid deleting necessary refs for next frame
>> - Properly used the kernel clamp_val() macros
>> - Zeroed the workspace to avoid refs handling glitches
>> - Add lock around the flush & stop to avoid race between IRQ and drain/stop
>>
>> [1] https://github.com/superna9999/pyv4l2compliance/raw/tests/output/Jellyfish_1080_10s_5MB.vp9.hdr
>> [2] https://github.com/superna9999/pyv4l2compliance
>> [3] https://lore.kernel.org/linux-media/20191205092454.26075-1-narmstrong@baylibre.com
>> [4] https://lore.kernel.org/linux-media/20200303143320.32562-1-narmstrong@baylibre.com
>> [5] https://www.webmproject.org/vp9/levels/
>> [6] https://lore.kernel.org/linux-media/20191217111939.10387-1-narmstrong@baylibre.com
>> [7] https://lore.kernel.org/linux-media/20200116133437.2443-1-narmstrong@baylibre.com
>> [8] https://lore.kernel.org/linux-media/20200206084152.7070-1-narmstrong@baylibre.com
>> [9] https://lore.kernel.org/linux-media/20200219140958.23542-1-narmstrong@baylibre.com
>>
>> The compliance log is:
>> # v4l2-compliance --stream-from-hdr Jellyfish_1080_10s_5MB.vp9.hdr -s 200
>> v4l2-compliance SHA: 7ead0e1856b89f2e19369af452bb03fd0cd16793, 64 bits
>>
>> Compliance test for meson-vdec device /dev/video0:
>>
>> Driver Info:
>> 	Driver name      : meson-vdec
>> 	Card type        : Amlogic Video Decoder
>> 	Bus info         : platform:meson-vdec
>> 	Driver version   : 5.5.0
>> 	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
>> 	Detected Stateful Decoder
>>
>> 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
>> 	test VIDIOC_QUERYCTRL: OK
>> 	test VIDIOC_G/S_CTRL: OK
>> 	test VIDIOC_G/S/TRY_EXT_CTRLS: OK
>> 	test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
>> 	test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
>> 	Standard Controls: 2 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 (Not Supported)
>>
>> 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
>> 	test Requests: OK (Not Supported)
>>
>> Test input 0:
>>
>> Streaming ioctls:
>> 	test read/write: OK (Not Supported)
>> 	test blocking wait: OK
>> 	Video Capture Multiplanar: Captured 198 buffers   
>> 	test MMAP (select): OK
>> 	Video Capture Multiplanar: Captured 198 buffers   
>> 	test MMAP (epoll): OK
>> 	test USERPTR (select): OK (Not Supported)
>> 	test DMABUF: Cannot test, specify --expbuf-device
>>
>> Total for meson-vdec device /dev/video0: 49, Succeeded: 49, Failed: 0, Warnings: 0
>>
>> Maxime Jourdan (4):
>>   media: meson: vdec: add helpers for lossless framebuffer compression
>>     buffers
>>   media: meson: vdec: add common HEVC decoder support
>>   media: meson: vdec: add VP9 input support
>>   media: meson: vdec: add VP9 decoder support
>>
>> Neil Armstrong (1):
>>   media: meson: vdec: align stride on 32 bytes
>>
>>  drivers/staging/media/meson/vdec/Makefile     |    4 +-
>>  .../media/meson/vdec/codec_hevc_common.c      |  284 +++
>>  .../media/meson/vdec/codec_hevc_common.h      |   80 +
>>  drivers/staging/media/meson/vdec/codec_vp9.c  | 2141 +++++++++++++++++
>>  drivers/staging/media/meson/vdec/codec_vp9.h  |   13 +
>>  drivers/staging/media/meson/vdec/esparser.c   |  150 +-
>>  drivers/staging/media/meson/vdec/hevc_regs.h  |  218 ++
>>  drivers/staging/media/meson/vdec/vdec.c       |   15 +-
>>  .../staging/media/meson/vdec/vdec_helpers.c   |   35 +-
>>  .../staging/media/meson/vdec/vdec_helpers.h   |    4 +
>>  drivers/staging/media/meson/vdec/vdec_hevc.c  |  231 ++
>>  drivers/staging/media/meson/vdec/vdec_hevc.h  |   13 +
>>  .../staging/media/meson/vdec/vdec_platform.c  |   38 +
>>  13 files changed, 3213 insertions(+), 13 deletions(-)
>>  create mode 100644 drivers/staging/media/meson/vdec/codec_hevc_common.c
>>  create mode 100644 drivers/staging/media/meson/vdec/codec_hevc_common.h
>>  create mode 100644 drivers/staging/media/meson/vdec/codec_vp9.c
>>  create mode 100644 drivers/staging/media/meson/vdec/codec_vp9.h
>>  create mode 100644 drivers/staging/media/meson/vdec/hevc_regs.h
>>  create mode 100644 drivers/staging/media/meson/vdec/vdec_hevc.c
>>  create mode 100644 drivers/staging/media/meson/vdec/vdec_hevc.h
>>
>