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* [PATCH v3 0/2] media: cedrus: Add H264 decoding support
@ 2019-02-11 14:39 Maxime Ripard
  2019-02-11 14:39 ` [PATCH v3 1/2] media: uapi: Add H264 low-level decoder API compound controls Maxime Ripard
                   ` (2 more replies)
  0 siblings, 3 replies; 24+ messages in thread
From: Maxime Ripard @ 2019-02-11 14:39 UTC (permalink / raw)
  To: hans.verkuil, acourbot, sakari.ailus, Laurent Pinchart
  Cc: tfiga, posciak, Paul Kocialkowski, Chen-Yu Tsai, linux-kernel,
	linux-arm-kernel, linux-media, nicolas.dufresne, jenskuske,
	jernej.skrabec, jonas, ezequiel, linux-sunxi, Thomas Petazzoni,
	Maxime Ripard

Hi,

Here is a new version of the H264 decoding support in the cedrus
driver.

As you might already know, the cedrus driver relies on the Request
API, and is a reverse engineered driver for the video decoding engine
found on the Allwinner SoCs.

This work has been possible thanks to the work done by the people
behind libvdpau-sunxi found here:
https://github.com/linux-sunxi/libvdpau-sunxi/

I've tested the various ABI using this gdb script:
http://code.bulix.org/jl4se4-505620?raw

And this test script:
http://code.bulix.org/8zle4s-505623?raw

The application compiled is quite trivial:
http://code.bulix.org/e34zp8-505624?raw

The output is:
arm:	builds/arm-test-v4l2-h264-structures
	SHA1: 88cbf7485ba81831fc3b93772b215599b3b38318
x86:	builds/x86-test-v4l2-h264-structures
	SHA1: 88cbf7485ba81831fc3b93772b215599b3b38318
x64:	builds/x64-test-v4l2-h264-structures
	SHA1: 88cbf7485ba81831fc3b93772b215599b3b38318
arm64:	builds/arm64-test-v4l2-h264-structures
	SHA1: 88cbf7485ba81831fc3b93772b215599b3b38318

Let me know if there's any flaw using that test setup, or if you have
any comments on the patches.

Maxime

Changes from v2:
  - Simplified _cedrus_write_ref_list as suggested by Jernej
  - Set whether the frame is used as reference using nal_ref_idc
  - Respect chroma_format_idc
  - Fixes for the scaling list and prediction tables
  - Wrote the documentation for the flags
  - Added a bunch of defines to the driver bit fields
  - Reworded the controls and data format descriptions as suggested
    by Hans
  - Reworked the controls' structure field size to avoid padding
  - Removed the long term reference flag
  - Reintroduced the neighbor info buffer
  - Removed the ref_pic_list_p0/b0/b1 arrays that are redundant with the
    one in the DPB
  - used the timestamps instead of tags
  - Rebased on 5.0-rc1

Changes from v1:
  - Rebased on 4.20
  - Did the documentation for the userspace API
  - Used the tags instead of buffer IDs
  - Added a comment to explain why we still needed the swdec trigger
  - Reworked the MV col buffer in order to have one slot per frame
  - Removed the unused neighbor info buffer
  - Made sure to have the same structure offset and alignments across
    32 bits and 64 bits architecture

Maxime Ripard (1):
  media: cedrus: Add H264 decoding support

Pawel Osciak (1):
  media: uapi: Add H264 low-level decoder API compound controls.

 Documentation/media/uapi/v4l/biblio.rst            |   9 +-
 Documentation/media/uapi/v4l/extended-controls.rst | 530 +++++++++++++-
 Documentation/media/uapi/v4l/pixfmt-compressed.rst |  20 +-
 Documentation/media/uapi/v4l/vidioc-queryctrl.rst  |  30 +-
 Documentation/media/videodev2.h.rst.exceptions     |   5 +-
 drivers/media/v4l2-core/v4l2-ctrls.c               |  42 +-
 drivers/media/v4l2-core/v4l2-ioctl.c               |   1 +-
 drivers/staging/media/sunxi/cedrus/Makefile        |   3 +-
 drivers/staging/media/sunxi/cedrus/cedrus.c        |  31 +-
 drivers/staging/media/sunxi/cedrus/cedrus.h        |  38 +-
 drivers/staging/media/sunxi/cedrus/cedrus_dec.c    |  15 +-
 drivers/staging/media/sunxi/cedrus/cedrus_h264.c   | 589 ++++++++++++++-
 drivers/staging/media/sunxi/cedrus/cedrus_hw.c     |   4 +-
 drivers/staging/media/sunxi/cedrus/cedrus_regs.h   |  91 ++-
 drivers/staging/media/sunxi/cedrus/cedrus_video.c  |   9 +-
 include/media/h264-ctrls.h                         | 179 ++++-
 include/media/v4l2-ctrls.h                         |  13 +-
 include/uapi/linux/videodev2.h                     |   1 +-
 18 files changed, 1607 insertions(+), 3 deletions(-)
 create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_h264.c
 create mode 100644 include/media/h264-ctrls.h

base-commit: e7552cc33320523b660dd1891bceb616ced7b47c
-- 
git-series 0.9.1

^ permalink raw reply	[flat|nested] 24+ messages in thread

end of thread, back to index

Thread overview: 24+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-11 14:39 [PATCH v3 0/2] media: cedrus: Add H264 decoding support Maxime Ripard
2019-02-11 14:39 ` [PATCH v3 1/2] media: uapi: Add H264 low-level decoder API compound controls Maxime Ripard
2019-02-11 15:16   ` Hans Verkuil
2019-02-11 15:21     ` Hans Verkuil
2019-02-12 13:05       ` Maxime Ripard
2019-02-12 21:17         ` Ezequiel Garcia
2019-02-11 17:16     ` Nicolas Dufresne
2019-02-11 17:12   ` Ezequiel Garcia
2019-02-12 10:23     ` Maxime Ripard
2019-02-11 19:53   ` Ezequiel Garcia
2019-02-11 14:39 ` [PATCH v3 2/2] media: cedrus: Add H264 decoding support Maxime Ripard
2019-02-11 19:21   ` [linux-sunxi] " Jernej Škrabec
2019-02-12 10:43     ` Maxime Ripard
2019-02-12 17:46       ` Jernej Škrabec
2019-02-11 19:48   ` Ezequiel Garcia
2019-02-12 12:47     ` Maxime Ripard
2019-02-12 17:40       ` Jernej Škrabec
2019-02-14 20:42   ` Jernej Škrabec
2019-02-14 21:27   ` Jernej Škrabec
2019-02-12 12:50 ` [PATCH v3 0/2] " Tomasz Figa
2019-02-12 21:22   ` Ezequiel Garcia
2019-02-13  3:02     ` Tomasz Figa
2019-02-13 16:28       ` Ezequiel Garcia
2019-02-14 15:47         ` Maxime Ripard

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