linux-kernel - [RFC 0/6] H.264 stateless encoder RFC 0/6

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Message-Id: <20231116154816.70959-1-andrzej.p@collabora.com>
Date:   Thu, 16 Nov 2023 16:48:10 +0100
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com
Cc:     Hugues Fruchet <hugues.fruchet@...s.st.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Daniel Almeida <daniel.almeida@...labora.com>,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Philipp Zabel <p.zabel@...gutronix.de>, kernel@...labora.com
Subject: [RFC 0/6] H.264 stateless encoder RFC 0/6

Dear All,

This series adds uAPI for stateless H.264 encoding and an
accompanying driver using it.

It has been tested on an stm32mp25 and there exists
a gstreamer user:

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5676

example pipeline:

gst-launch-1.0 videotestsrc num-buffers=30 ! video/x-raw, format=YUY2 !
v4l2slh264enc ! filesink location=test.h264

Rebased onto v6.6 with:

- some patches from ST to actually run the hardware
- my previous VP8 statless encoding series
- VP8 support for H1 from Hugues Fruchet

In particular, this series depends on the latter, which can be
found here:

https://patchwork.linuxtv.org/project/linux-media/list/?series=11358

Here's a branch which contains everything needed to actually run:

https://gitlab.collabora.com/linux/for-upstream/-/tree/h264-enc-rfc-6.6

I kindly ask for comments.

Regards,

Andrzej Pietrasiewicz (6):
  media: verisilicon Correct a typo in
    H1_REG_ENC_CTRL2_DEBLOCKING_FILTER_MODE
  media: verisilicon: Correct a typo in H1_REG_MAD_CTRL_MAD_THRESHOLD
  media: verisilicon: Improve constant's name
  media: verisilicon: Update H1 register definitions
  media: uapi: Add H.264 stateless encoding uAPI
  media: verisilicon: Add H.264 stateless encoder

 drivers/media/platform/verisilicon/Makefile   |   1 +
 drivers/media/platform/verisilicon/hantro.h   |   3 +
 .../media/platform/verisilicon/hantro_drv.c   |  10 +
 .../platform/verisilicon/hantro_h1_h264_enc.c | 493 +++++++++++
 .../platform/verisilicon/hantro_h1_regs.h     |  20 +-
 .../platform/verisilicon/hantro_h1_vp8_enc.c  |   2 +-
 .../media/platform/verisilicon/hantro_h264.c  | 777 ++++++++++++++++++
 .../media/platform/verisilicon/hantro_hw.h    |  23 +
 .../platform/verisilicon/stm32mp25_venc_hw.c  |  22 +-
 drivers/media/v4l2-core/v4l2-ctrls-core.c     |  54 ++
 drivers/media/v4l2-core/v4l2-ctrls-defs.c     |   9 +
 include/uapi/linux/v4l2-controls.h            |  85 ++
 include/uapi/linux/videodev2.h                |   2 +
 13 files changed, 1496 insertions(+), 5 deletions(-)
 create mode 100644 drivers/media/platform/verisilicon/hantro_h1_h264_enc.c

-- 
2.25.1