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Subject: edid-decode: fix wrong CTA warning if more than 1 CTA block Author: Hans Verkuil <hverk...@xs4all.nl> Date: Thu Mar 13 09:57:08 2025 +0100 If there are multiple CTA-861 blocks, then this warning is seen for each CTA block: Display Product Serial Number is set, so the Serial Number in the Base EDID should be 0. Only show this for the first CTA block. Signed-off-by: Hans Verkuil <hverk...@xs4all.nl> utils/edid-decode/edid-decode.h | 2 ++ utils/edid-decode/parse-cta-block.cpp | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) --- http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=371537d1bcf03146682005a858af1b3e02900cc1 diff --git a/utils/edid-decode/edid-decode.h b/utils/edid-decode/edid-decode.h index e64143deb79a..7e39d8348e8a 100644 --- a/utils/edid-decode/edid-decode.h +++ b/utils/edid-decode/edid-decode.h @@ -188,6 +188,7 @@ struct edid_state { cta.block_number = 0; cta.has_svrs = false; cta.first_svd = true; + cta.first_cta = true; cta.supported_hdmi_vic_codes = cta.supported_hdmi_vic_vsb_codes = 0; memset(cta.vics, 0, sizeof(cta.vics)); memset(cta.preparsed_has_vic, 0, sizeof(cta.preparsed_has_vic)); @@ -343,6 +344,7 @@ struct edid_state { bool has_ycbcr444; bool has_ycbcr422; bool has_ycbcr420; + bool first_cta; } cta; // DisplayID block state diff --git a/utils/edid-decode/parse-cta-block.cpp b/utils/edid-decode/parse-cta-block.cpp index 451ea1f42896..b52ef9da4dcf 100644 --- a/utils/edid-decode/parse-cta-block.cpp +++ b/utils/edid-decode/parse-cta-block.cpp @@ -3041,7 +3041,7 @@ void edid_state::parse_cta_block(const unsigned char *x) } while (0); data_block.clear(); - if (base.serial_number && serial_strings.size()) + if (base.serial_number && serial_strings.size() && cta.first_cta) warn("Display Product Serial Number is set, so the Serial Number in the Base EDID should be 0.\n"); if (!cta.has_vic_1 && !base.has_640x480p60_est_timing) fail("Required 640x480p60 timings are missing in the established timings" @@ -3053,6 +3053,7 @@ void edid_state::parse_cta_block(const unsigned char *x) fail("Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop issues.\n"); if (!base.uses_srgb && !cta.has_cdb) warn("Add a Colorimetry Data Block with the sRGB colorimetry bit set to avoid interop issues.\n"); + cta.first_cta = false; } void edid_state::cta_resolve_svr(timings_ext &t_ext)
