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libcamera: pipeline: Move tuning file override handling to IPAProxy

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The rkisp1 and rpi pipeline handlers duplicate code to handle the
LIBCAMERA_RKISP1_TUNING_FILE and LIBCAMERA_RPI_TUNING_FILE environment
variables that override tuning file selection. Move the common code to
IPAProxy::configurationFile() to avoid the duplication, and make the
feature available to all pipeline handlers with the same behaviour.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2025-01-23 16:34:56 +02:00
parent 3e753e2273
commit f5da05ed03
4 changed files with 32 additions and 33 deletions
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4
Documentation/environment_variables.rst
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@ -57,8 +57,8 @@ LIBCAMERA_RPI_CONFIG_FILE
Example value: ``/usr/local/share/libcamera/pipeline/rpi/vc4/minimal_mem.yaml``
LIBCAMERA_RPI_TUNING_FILE
Define a custom JSON tuning file to use in the Raspberry Pi.
LIBCAMERA_<NAME>_TUNING_FILE
Define a custom IPA tuning file to use with the pipeline handler `NAME`.
Example value: ``/usr/local/share/libcamera/ipa/rpi/vc4/custom_sensor.json``