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libcamera: af: re-baseline the scene reference after a sweep (r5)
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Hardware finding from the first r4 run on the phone: the focus-loss
detector compared the settled scene against the maximum sharpness
recorded during the sweep, which was measured under a different AGC
state. On the FP6 that maximum read 4848088 and the same position two
stats frames later read 1995445, so the detector fired immediately and
the lens swept forever. Patch 0014 takes the reference after the lens
settles and requires four consecutive out-of-band frames.

Verified on the phone: r4 re-swept without end, r5 completes one sweep
and stays put.
This commit is contained in:
Jorijn van der Graaf 2026-08-17 02:35:59 +02:00
commit 236015ef36
2 changed files with 117 additions and 1 deletions
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4
aports/temp/libcamera/APKBUILD
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@ -3,7 +3,7 @@ maintainer="Robert Mader <robert.mader@collabora.com>"
pkgname=libcamera
_pkgver=0.7.2
pkgver=9999$_pkgver
pkgrel=4
pkgrel=5
pkgdesc="Linux camera framework"
url="https://libcamera.org/"
arch="all"
@ -70,6 +70,7 @@ source="https://gitlab.freedesktop.org/camera/libcamera/-/archive/v$_pkgver/libc
0011-libcamera-pipeline-simple-Apply-the-lens-position-un.patch
0012-libcamera-software_isp-af-Harden-the-lens-control-ha.patch
0013-libcamera-software_isp-af-Add-AfMode-and-focus-witho.patch
0014-libcamera-software_isp-af-Re-baseline-the-scene-refe.patch
qcam.desktop
$_tuning_files
"
@ -196,6 +197,7 @@ c8ddc64ab943d9b215f4c997f2629e4403744c0ddb5de88cd42d384506a27c0762191eddd4d13559
3965405be757917030c89db5da60aa226d0f0591e213d055d8312dbddee0c3d81fbcaa5928d6de4d3cb636572a27261d8686d87ae39b9634d70b33cf8388dc73 0011-libcamera-pipeline-simple-Apply-the-lens-position-un.patch
8734e27966bd1bc5a4b0324a3d8a3ee4ab371f6d1536500b2bb44d49bde874c3fd6f244312332226c352e4716ba12fb72bf51e64b9e97cf6fa646aa6dfef3277 0012-libcamera-software_isp-af-Harden-the-lens-control-ha.patch
dce81c2863ff6b9374115325f4af14ac5d396a6e2aee12f87d55a47d1d0bda860ae2af5a9d6885b126e20a12b7f3f40e49a2b9d738f94c04177bff6149da64e1 0013-libcamera-software_isp-af-Add-AfMode-and-focus-witho.patch
18ed6a03fbe3bcd750fac280831d1e62f2a2e35f76880535f2dc16ff196308512535e077ab0d8a923ad241090713edb53d1777e0dd6e5dcc10de495db1277052 0014-libcamera-software_isp-af-Re-baseline-the-scene-refe.patch
22167a4eceb6d1b40b0b7c45fdf116c71684f5340de7f767535cb8e160ad9d2ae0f00cb3d461f73a344520a48a4641cf46226841d78bee06bfbfd2a91337f754 qcam.desktop
2ee566653b17d565d2c0de67cbe6ebad25df5aac6051cad78e6bae52016fa2ca0247e964d735ac776b3e0bd447ead9c4fcb26cd7629228cdba3ceb91b46f378f hi846.yaml
55dab9dcb9b1982143b9d63e4e51138c5bffd7c8f4a8e4e122750b3ad9d475446956bc297d9f564819ade4be75a575d06633a064e14f8ba3ef77986783c5f067 imx355.yaml