[PATCH v2 0/4] media: verisilicon: Keep the CAPTURE format in line with the decoder

[Arun Iyengar via B4 Relay <devnull+aiyengar1990.gmail.com@kernel.org>]

Fixes for cases where the decoder writes past the CAPTURE format or an
auxiliary buffer, found by Sashiko on hantro-dec-size-check v1 [1].

Tested on an Orange Pi 5 (RK3588S) with AV1: the CAPTURE format is right
after film grain is turned off and for 10-bit streams; VP8 and AV1
fluster show no new failures. The overrun in patch 1 was not reproduced.
HEVC and VP9 are untested (the RK3588 has no G2 core).

Developed with Claude (Anthropic), which wrote the code and the commit
messages. I reviewed every change.

[1] https://lore.kernel.org/r/20261112-hantro-dec-size-check-v1-1-e5f1180b625f@gmail.com

---
Changes in v2:
- 3/4: also replace a native format when post-processing; second Fixes tag (Sashiko)
- 4/4: check the control returned by v4l2_ctrl_new_custom() (Sashiko)
- Shorter commit messages, fewer code comments
- Link to v1: https://patch.msgid.link/20261114-hantro-fixes-v1-0-abb78264801e@gmail.com

---
Arun Iyengar (4):
      media: verisilicon: Size the VP8 segment map for the largest frame
      media: verisilicon: Set need_postproc before resetting the CAPTURE format
      media: verisilicon: Keep the CAPTURE format at the stream's bit depth
      media: verisilicon: Set the bit depth again when its control is rewritten

 drivers/media/platform/verisilicon/hantro_drv.c  | 12 ++++++++++--
 drivers/media/platform/verisilicon/hantro_v4l2.c | 20 +++++++++++++++++---
 drivers/media/platform/verisilicon/hantro_vp8.c  |  4 ++--
 3 files changed, 29 insertions(+), 7 deletions(-)
---
base-commit: ad6549a46748d00818483b535e5cd2a704685c98
change-id: 20261113-hantro-fixes-aace04d5268b

Best regards,
--  
Arun Iyengar <aiyengar1990@gmail.com>