diff options
Diffstat (limited to 'files/util/yuvconstants.c')
| -rw-r--r-- | files/util/yuvconstants.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/files/util/yuvconstants.c b/files/util/yuvconstants.c index 037e0824..4e5185af 100644 --- a/files/util/yuvconstants.c +++ b/files/util/yuvconstants.c @@ -43,9 +43,10 @@ // #define BR (-VR * 128 + YB) int main(int argc, const char* argv[]) { - if (argc < 2) { - printf("yuvconstants Kr Kb\n"); - printf(" MC BT KR = 0.2126; KB = 0.0722\n"); + if (argc < 3) { + printf("yuvconstants [KR] [KB]\n"); + printf(" e.g. yuvconstants 0.2126 0.0722\n"); + printf(" MC BT KR KB\n"); printf(" 1 BT.709 KR = 0.2126; KB = 0.0722\n"); printf(" 4 FCC KR = 0.30; KB = 0.11\n"); printf(" 6 BT.601 KR = 0.299; KB = 0.114\n"); @@ -53,8 +54,8 @@ int main(int argc, const char* argv[]) { printf(" 9 BT.2020 KR = 0.2627; KB = 0.0593\n"); return -1; } - float kr = atof(argv[1]); - float kb = atof(argv[2]); + float kr = (float)atof(argv[1]); + float kb = (float)atof(argv[2]); float kg = 1 - kr - kb; float vr = 2 * (1 - kr); |