linux-kernel - [PATCH v3 0/4] media: meson: vdec: Add compliant H264 support

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Date:   Mon,  9 Dec 2019 13:20:24 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     mchehab@...nel.org, hans.verkuil@...co.com
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-media@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 0/4] media: meson: vdec: Add compliant H264 support

Hello,

This patch series aims to bring H.264 support as well as compliance update
to the amlogic stateful video decoder driver.

The issue in the V1 patchset at [1] is solved by patch #1 following comments
and requirements from hans. It moves the full draining & stopped state tracking
and handling from vicodec to core v4l2-mem2mem.

With this, it passes v4l2-compliance with streaming on Amlogic G12A and
Amlogic SM1 SoCs successfully.

This patchset depends on G12A and SM1 enablement series at [2] and [3].

The compliance log is:
# v4l2-compliance --stream-from-hdr test-25fps.h264.hdr -s
v4l2-compliance SHA: 7ead0e1856b89f2e19369af452bb03fd0cd16793, 64 bits

Compliance test for vicodec device /dev/video0:

Driver Info:
	Driver name      : vicodec
	Card type        : vicodec
	Bus info         : platform:vicodec
	Driver version   : 5.5.0
	Capabilities     : 0x84208000
		Video Memory-to-Memory
		Streaming
		Extended Pix Format
		Device Capabilities
	Device Caps      : 0x04208000
		Video Memory-to-Memory
		Streaming
		Extended Pix Format
	Detected Stateful Encoder
Media Driver Info:
	Driver name      : vicodec
	Model            : vicodec
	Serial           : 
	Bus info         : platform:vicodec
	Media version    : 5.5.0
	Hardware revision: 0x00000000 (0)
	Driver version   : 5.5.0
Interface Info:
	ID               : 0x0300000c
	Type             : V4L Video
Entity Info:
	ID               : 0x00000001 (1)
	Name             : stateful-encoder-source
	Function         : V4L2 I/O
	Pad 0x01000002   : 0: Source
	  Link 0x02000008: to remote pad 0x1000005 of entity 'stateful-encoder-proc': Data, Enabled, Immutable

Required ioctls:
	test MC information (see 'Media Driver Info' above): OK
	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: 6 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
	test Composing: OK (Not Supported)
	test Scaling: OK (Not Supported)

Codec ioctls:
	test VIDIOC_(TRY_)ENCODER_CMD: OK
	test VIDIOC_G_ENC_INDEX: OK (Not Supported)
	test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

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: Captured 60 buffers                
	test MMAP (select): OK
	Video Capture: Captured 60 buffers                
	test MMAP (epoll): OK
	Video Capture: Captured 60 buffers                
	test USERPTR (select): OK
	test DMABUF: Cannot test, specify --expbuf-device

Total for vicodec device /dev/video0: 50, Succeeded: 50, Failed: 0, Warnings: 0

Changes since v2 at [4]:
- Move full draining & stopped state tracking into core v4l2-mem2mem
- Adapt vicodec to use the core v4l2-mem2mem draining & stopped state tracking

Changes since v1 at [1]:
- fixed output_size is never used reported by hans
- rebased on G12A and SM1 patches
- added handling of qbuf after STREAMON and STOP before enought buffer queued

[1] https://lore.kernel.org/linux-media/20191007145909.29979-1-mjourdan@baylibre.com
[2] https://lore.kernel.org/linux-media/20191205153408.26500-1-narmstrong@baylibre.com
[3] https://lore.kernel.org/linux-media/20191121101429.23831-1-narmstrong@baylibre.com
[4] https://lore.kernel.org/linux-media/20191126093733.32404-1-narmstrong@baylibre.com

Maxime Jourdan (2):
  media: meson: vdec: bring up to compliance
  media: meson: vdec: add H.264 decoding support

Neil Armstrong (2):
  media: v4l2-mem2mem: handle draining, stopped and next-buf-is-last
    states
  media: vicodec: use v4l2-mem2mem draining, stopped and
    next-buf-is-last states handling

 drivers/media/platform/vicodec/vicodec-core.c | 154 ++----
 drivers/media/v4l2-core/v4l2-mem2mem.c        | 174 ++++++-
 drivers/staging/media/meson/vdec/Makefile     |   2 +-
 drivers/staging/media/meson/vdec/codec_h264.c | 482 ++++++++++++++++++
 drivers/staging/media/meson/vdec/codec_h264.h |  14 +
 drivers/staging/media/meson/vdec/esparser.c   |  58 +--
 drivers/staging/media/meson/vdec/vdec.c       |  92 ++--
 drivers/staging/media/meson/vdec/vdec.h       |  14 +-
 .../staging/media/meson/vdec/vdec_helpers.c   |  85 ++-
 .../staging/media/meson/vdec/vdec_helpers.h   |   6 +-
 .../staging/media/meson/vdec/vdec_platform.c  |  71 +++
 include/media/v4l2-mem2mem.h                  |  87 ++++
 12 files changed, 1009 insertions(+), 230 deletions(-)
 create mode 100644 drivers/staging/media/meson/vdec/codec_h264.c
 create mode 100644 drivers/staging/media/meson/vdec/codec_h264.h

-- 
2.22.0