linux-kernel - [PATCH 0/7] media: cedrus: h265: Implement tiles support

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Date:   Mon, 20 Jun 2022 19:55:10 +0200
From:   Jernej Skrabec <jernej.skrabec@...il.com>
To:     mripard@...nel.org, paul.kocialkowski@...tlin.com, wens@...e.org,
        samuel@...lland.org
Cc:     mchehab@...nel.org, gregkh@...uxfoundation.org,
        hverkuil-cisco@...all.nl, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Jernej Skrabec <jernej.skrabec@...il.com>
Subject: [PATCH 0/7] media: cedrus: h265: Implement tiles support

Now that we have full and stable HEVC uAPI, let's implement last big
missing piece of HEVC in Cedrus - tiles support. This is done in
last patch. Before that, there are bug fixes (patch 1 & 2, previously
submitted separately in [1]), error handling improvements (patch 3, 4)
and added helper for dealing with dynamic arrays (patch 5).

These patches are based on top of [2].

Final fluster score with this series is 125/147. 11 bitstreams are
MAIN10, which is not yet properly supported. 5 bitstreams need better
memory management with auxiliary buffers (wip patches exists). 4 are
too big and 2 probably fails due to ffmpeg implementation.

Used ffmpeg source is in [3].

Note - Cedrus driver currently supports only one slice per request since
HW takes data for 1 slice only. This can be improved by loading data for
next slice automatically after HW signalled end of decoding. Something
for later.

Please take a look.

Best regards,
Jernej

[1] https://patchwork.linuxtv.org/project/linux-media/list/?series=8187
[2] https://patchwork.linuxtv.org/project/linux-media/list/?series=8208
[3] https://github.com/jernejsk/FFmpeg/commits/hevc-mainline

Jernej Skrabec (7):
  media: cedrus: h265: Fix flag name
  media: cedrus: h265: Fix logic for not low delay flag
  media: cedrus: Improve error messages for controls
  media: cedrus: Add error handling for failed setup
  media: cedrus: h265: Add a couple of error checks
  media: cedrus: Add helper for determining number of elements
  media: cedrus: h265: Implement support for tiles

 drivers/staging/media/sunxi/cedrus/cedrus.c   |  28 +++-
 drivers/staging/media/sunxi/cedrus/cedrus.h   |   7 +-
 .../staging/media/sunxi/cedrus/cedrus_dec.c   |  25 ++-
 .../staging/media/sunxi/cedrus/cedrus_h264.c  |   5 +-
 .../staging/media/sunxi/cedrus/cedrus_h265.c  | 153 ++++++++++++++++--
 .../staging/media/sunxi/cedrus/cedrus_mpeg2.c |   4 +-
 .../staging/media/sunxi/cedrus/cedrus_regs.h  |   3 +-
 .../staging/media/sunxi/cedrus/cedrus_vp8.c   |   5 +-
 8 files changed, 204 insertions(+), 26 deletions(-)

-- 
2.36.1