[PATCH 00/10] staging: media: cedrus: assorted fixes and VP8 4K support
Jernej Skrabec
jernej.skrabec at gmail.com
Mon Nov 2 09:02:53 PST 2026
This series fixes a number of bugs in the Cedrus driver, found while
running the conformance suites and comparing with the vendor library,
mostly on H616.
Patches 1-9 are fixes:
- patch 1 fixes MV-col buffer leak when the file handle is closed
without STREAMOFF,
- patches 2 and 7 validate H.264/HEVC SPS and VP8 frame size against
the hardware limits and allocated capture buffers, preventing memory
overruns and hardware hangs,
- patch 3 marks H.264 long-term references, which fixes MR8_BT_B and
MR9_BT_B conformance samples,
- patches 4-6 fix MPEG-2 field picture decoding (field height, field
order detection and references of the second field),
- patch 8 enlarges VP8 probability table to the size used by the vendor
libraries, since the hardware uses the area past it as scratch space,
- patch 9 switches H616 to the 256-bit DDR mode, which fixes corrupted
reference chroma in H.264 and VP8.
Patch 10 is new functionality: VP8 decoding of frames wider than 2048
pixels.
Please take a look.
Best regards,
Jernej
Jernej Skrabec (10):
staging: media: cedrus: free MV-col buffers in buf_cleanup
staging: media: cedrus: reject too large H.264/HEVC SPS
staging: media: cedrus: h264: mark long-term references in the frame
info
staging: media: cedrus: mpeg2: use the field height for field pictures
staging: media: cedrus: mpeg2: derive the field order of field
pictures
staging: media: cedrus: mpeg2: fix the references of field pictures
staging: media: cedrus: validate VP8 frame size
staging: media: cedrus: vp8: use the vendor probability table size
staging: media: cedrus: h616: use the 256-bit DDR mode
staging: media: cedrus: vp8: support frames wider than 2048 pixels
drivers/staging/media/sunxi/cedrus/cedrus.c | 60 +++++++++++++++-
drivers/staging/media/sunxi/cedrus/cedrus.h | 15 ++++
.../staging/media/sunxi/cedrus/cedrus_h264.c | 40 +++++++----
.../staging/media/sunxi/cedrus/cedrus_h265.c | 28 ++++----
.../staging/media/sunxi/cedrus/cedrus_hw.c | 14 ++--
.../staging/media/sunxi/cedrus/cedrus_mpeg2.c | 72 ++++++++++++++++---
.../staging/media/sunxi/cedrus/cedrus_regs.h | 8 +++
.../staging/media/sunxi/cedrus/cedrus_video.c | 15 ++--
.../staging/media/sunxi/cedrus/cedrus_video.h | 5 ++
.../staging/media/sunxi/cedrus/cedrus_vp8.c | 66 ++++++++++++++++-
10 files changed, 276 insertions(+), 47 deletions(-)
base-commit: 27285b099fbc5cb2ae3aef20f3bbd7b3c88b3005
--
2.43.0
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