iq: Make the IQ parameters configurable

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

1 files changed, 25 insertions, 1 deletions

diff --git a/snapshot.c b/snapshot.c
index 59da5b5..6b5d84e 100644
--- a/snapshot.c
+++ b/snapshot.c
@@ -400,9 +400,21 @@ static void usage(const char *argv0)
 	printf("-S, --save		Save snapshots to disk\n");
 	printf("-s, --size wxh		Set the snapshot capture size\n");
 	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("- exposure-def		Exposure time default value\n");
+	printf("- exposure-min		Exposure time minimum value\n");
+	printf("- exposure-max		Exposure time maximum value\n");
+	printf("- gain-def		Sensor gain default value\n");
+	printf("- gain-min		Sensor gain minimum value\n");
+	printf("- gain-max		Sensor gain maximum value\n");
+	printf("- mean-level		Mean luminance target level (float [0-1])\n");
 }
 
+#define OPT_AEWB_PARAM		256
+
 static struct option opts[] = {
+	{ "aewb", 1, 0, OPT_AEWB_PARAM },
 	{ "crop", 1, 0, 'c' },
 	{ "format", 1, 0, 'f' },
 	{ "help", 0, 0, 'h' },
@@ -421,6 +433,7 @@ int main(int argc __attribute__((__unused__)), char *argv[] __attribute__((__unu
 	struct omap3_isp_device *isp = NULL;
 	struct omap3_isp_operations ops;
 	struct timespec start, end;
+	struct iq_params iq_params;
 	int exit_code = EXIT_FAILURE;
 	float fps;
 	int ret;
@@ -430,6 +443,8 @@ int main(int argc __attribute__((__unused__)), char *argv[] __attribute__((__unu
 	snap.format.width = SNAPSHOT_WIDTH;
 	snap.format.height = SNAPSHOT_HEIGHT;
 
+	iq_params_init(&iq_params);
+
 	while ((c = getopt_long(argc, argv, "c:f:hi:k:N:n:Ss:v", opts, NULL)) != -1) {
 		switch (c) {
 		case 'c':
@@ -485,6 +500,15 @@ int main(int argc __attribute__((__unused__)), char *argv[] __attribute__((__unu
 			vf.enabled = true;
 			snap.trigger = SNAPSHOT_TRIGGER_MANUAL;
 			break;
+		case OPT_AEWB_PARAM:
+			ret = iq_params_parse(&iq_params, optarg);
+			if (ret < 0) {
+				printf("%s AEWB argument %s.\n",
+				       ret == -ERANGE ? "out-of-range" : "invalid",
+				       optarg);
+				return 1;
+			}
+			break;
 		default:
 			printf("Invalid option -%c\n", c);
 			printf("Run %s -h for help.\n", argv[0]);
@@ -524,7 +548,7 @@ int main(int argc __attribute__((__unused__)), char *argv[] __attribute__((__unu
 	if (ret < 0)
 		goto cleanup;
 
-	iq = iq_init(isp);
+	iq = iq_init(isp, &iq_params);
 	if (iq == NULL) {
 		printf("error: unable to initialize image quality tuning\n");
 		goto cleanup;