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The Pipewire libcamera spa plugin exposes multiple camera properties. Unlike v4l2, libcamera usually exposes these as normalized floating point values. But as the SPA_PROP types are based on v4l2, they are currently set to integers. This causes a problem when using pw-cli to change the properties, as the spa_json_to_pod_part function casts the properties according to their spa_type_info. Other software that doesn't depend on the spa_type_info can correctly set the properties, as the values are encoded in the spa_pod type and therefore also carry a type. As the limited range from switching integers to floats is likely not a problem, the affected spa properties were changed to the Float type. This will cause pw-cli to also generate spa_pod values of type float when setting v4l2 properties. Therefore the v4l2 spa plugin is also adapted to allow floating point properties and cast these to integers. Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de> |
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