From: Arnaud Vrac <[email protected]>
---
edid-decode.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/edid-decode.c b/edid-decode.c
index 2e367b3..c18697f 100644
--- a/edid-decode.c
+++ b/edid-decode.c
@@ -1100,6 +1100,43 @@ cea_colorimetry_block(unsigned char *x)
}
}
+static const char *eotf_map[] = {
+ "Traditional gamma - SDR luminance range",
+ "Traditional gamma - HDR luminance range",
+ "SMPTE ST2084",
+};
+
+static void
+cea_hdr_metadata_block(unsigned char *x)
+{
+ int length = x[0] & 0x1f;
+ int i;
+
+ if (length >= 3) {
+ printf(" Electro optical transfer functions:\n");
+ for (i = 0; i < 6; i++) {
+ if (x[2] >> i) {
+ printf(" %s\n", i < ARRAY_SIZE(eotf_map) ?
+ eotf_map[i] : "Unknown");
+ }
+ }
+ printf(" Supported static metadata descriptors:\n");
+ for (i = 0; i < 8; i++) {
+ if (x[3] >> i)
+ printf(" Static metadata type %d\n", i + 1);
+ }
+ }
+
+ if (length >= 4)
+ printf(" Desired content max luminance: %d\n", x[4]);
+
+ if (length >= 5)
+ printf(" Desired content max frame-average luminance: %d\n", x[5]);
+
+ if (length >= 6)
+ printf(" Desired content min luminance: %d\n", x[6]);
+}
+
static void
cea_block(unsigned char *x)
{
@@ -1155,6 +1192,7 @@ cea_block(unsigned char *x)
break;
case 0x06:
printf("HDR static metadata data block\n");
+ cea_hdr_metadata_block(x);
break;
case 0x0d:
printf("Video format preference data block\n");
--
2.7.4
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