iq: Add ae-delay and ae-interval parameters

The ae-delay parameter selects the number of frames to skip at stream
startup before running the auto exposure algorithm. The ae-interval
selects the number of frames between AE runs. This can be used to delay
AE when the sensor needs one or more frames to apply exposure and/or
gain values.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/snapshot.c b/snapshot.c
index 76df91a..958307e 100644
--- a/snapshot.c
+++ b/snapshot.c
@@ -402,6 +402,8 @@ static void usage(const char *argv0)
 	printf("-v, --view		Enable viewfinder\n");
 	printf("    --aewb param=value	Set AEWB algorithm parameter 'param' to 'value'\n");
 	printf("\nSupported AEWB parameters are:\n");
+ 	printf("- ae-delay		Number of frames to skip at stream start before enabling AE\n");
+	printf("- ae-interval		Number of frames between AE algorithm runs (>= 1)\n");
 	printf("- exposure-def		Exposure time default value\n");
 	printf("- exposure-min		Exposure time minimum value\n");
 	printf("- exposure-max		Exposure time maximum value\n");