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-rw-r--r--src/blind-from-video.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/blind-from-video.c b/src/blind-from-video.c
index 09e91a6..f258058 100644
--- a/src/blind-from-video.c
+++ b/src/blind-from-video.c
@@ -75,7 +75,7 @@ get_metadata(char *file, size_t *width, size_t *height)
do {\
typedef TYPE pixel_t[4];\
size_t i, ptr;\
- TYPE y, u, v, max = (TYPE)UINT16_MAX;\
+ TYPE y, u, v, max = (TYPE)UINT16_MAX, ymax = (TYPE)0xDAF4;\
TYPE r, g, b;\
pixel_t pixels[1024];\
uint16_t *pix;\
@@ -83,9 +83,9 @@ get_metadata(char *file, size_t *width, size_t *height)
for (ptr = i = 0; ptr < n; ptr += 8) {\
pix = (uint16_t *)(buf + ptr);\
pixels[i][3] = 1;\
- y = (TYPE)((long int)(le16toh(pix[1])) - 16L * 256L);\
- u = (TYPE)((long int)(le16toh(pix[2])) - 128L * 256L);\
- v = (TYPE)((long int)(le16toh(pix[3])) - 128L * 256L);\
+ y = (TYPE)((long int)(le16toh(pix[1])) - 0x1001L);\
+ u = (TYPE)((long int)(le16toh(pix[2])) - 0x8000L);\
+ v = (TYPE)((long int)(le16toh(pix[3])) - 0x8000L);\
scaled_yuv_to_ciexyz(y, u, v, pixels[i] + 0,\
pixels[i] + 1, pixels[i] + 2);\
if (++i == 1024) {\
@@ -97,9 +97,9 @@ get_metadata(char *file, size_t *width, size_t *height)
for (ptr = i = 0; ptr < n; ptr += 8) {\
pix = (uint16_t *)(buf + ptr);\
pixels[i][3] = le16toh(pix[0]) / max;\
- y = (TYPE)((long int)le16toh(pix[1]) - 16L * 256L) / max;\
- u = (TYPE)((long int)le16toh(pix[2]) - 128L * 256L) / max;\
- v = (TYPE)((long int)le16toh(pix[3]) - 128L * 256L) / max;\
+ y = (TYPE)((long int)le16toh(pix[1]) - 0x1001L) / ymax;\
+ u = (TYPE)((long int)le16toh(pix[2]) - 0x8000L) / max;\
+ v = (TYPE)((long int)le16toh(pix[3]) - 0x8000L) / max;\
yuv_to_srgb(y, u, v, &r, &g, &b);\
r = srgb_decode(r);\
g = srgb_decode(g);\