pipeline: raspberrypi: Read config parameters from a file

Add the ability to read the platform configuration parameters from a
config file provided by the user through the LIBCAMERA_RPI_CONFIG_FILE
environment variable. Use the PipelineHandler::configurationFile()
helper to determine the full path of the file.

Provide an example configuration file named example.yaml. Currently two
parameters are available through the json file:

"min_unicam_buffers" The minimum number of internal Unicam buffers to
allocate.

"min_total_unicam_buffers" The minimum number of internal + external
Unicam buffers that must be allocated.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

0 files changed, 0 insertions, 0 deletions