diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2017-09-09 12:08:29 +0200 |
|---|---|---|
| committer | Adam Jackson <ajax@redhat.com> | 2017-09-18 10:16:49 -0400 |
| commit | 08fe5a9ad14313d57f68edda7c54b25e6ba8b66c (patch) | |
| tree | 59b22cb54a627a61b199f906e6b17eff4eecdacf | |
| parent | 977e74aec4ce19aaa96700d0f388b3c1553cefc1 (diff) | |
edid-decode: add support for InfoFrame data block
Support this CTA-861 block.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
| -rw-r--r-- | edid-decode.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/edid-decode.c b/edid-decode.c index 550c2d5..c61fde8 100644 --- a/edid-decode.c +++ b/edid-decode.c @@ -1931,6 +1931,37 @@ cta_hdr_dyn_metadata_block(unsigned char *x) } static void +cta_ifdb(unsigned char *x) +{ + int length = x[0] & 0x1f; + int len_hdr = x[2] >> 5; + + if (length < 2) + return; + if (length < len_hdr + 4) + return; + printf(" VSIFs: %d\n", x[3]); + length -= len_hdr + 3; + x += len_hdr + 4; + while (length > 0) { + int payload_len = x[0] >> 5; + + if ((x[0] & 0x1f) == 1 && length >= 4) { + printf(" InfoFrame Type Code %d IEEE OUI: %02x%02x%02x\n", + x[0] & 0x1f, x[3], x[2], x[1]); + x += 4; + length -= 4; + } else { + printf(" InfoFrame Type Code %d\n", x[0] & 0x1f); + x++; + length--; + } + x += payload_len; + length -= payload_len; + } +} + +static void cta_block(unsigned char *x) { static int last_block_was_hdmi_vsdb; @@ -2031,6 +2062,7 @@ cta_block(unsigned char *x) break; case 0x20: printf("InfoFrame data block\n"); + cta_ifdb(x); break; default: if (x[1] >= 6 && x[1] <= 12) |