monitor-parse-edid:

 add support for Short Video Descriptor formats 1-34 (as defined by
 EIA/CEA-861-B) in Video Data Blocks of CEA EDID Timing Extension

2 files changed, 463 insertions, 2 deletions

diff --git a/NEWS b/NEWS
index 3134111..e75ce83 100644
--- a/NEWS
+++ b/NEWS
@@ -12,6 +12,8 @@
   o accept EDID data with multiple extension blocks
   o add support for Detailed Timing Descriptors in CEA EDID Timing
     Extension
+  o add support for Short Video Descriptor formats 1-34 (as defined by
+    EIA/CEA-861-B) in Video Data Blocks of CEA EDID Timing Extension
 
 Version 2.5 - 18 October 2009, by Anssi Hannula
 
diff --git a/monitor-parse-edid b/monitor-parse-edid
index b8f3515..9228d12 100755
--- a/monitor-parse-edid
+++ b/monitor-parse-edid
@@ -165,6 +165,454 @@ my %subfields = (
     ) ],
 );
 
+my %cea_video_modes = ( # EIA/CEA-861-B
+    # 60/59.94 Hz formats:
+    1 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 25.175, 25.200 ],
+	    'horizontal_active' => 640,
+	    'horizontal_blanking' => 160,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 16,
+	    'horizontal_sync_pulse_width' => 96,
+	    'vertical_sync_offset' => 10,
+	    'vertical_sync_pulse_width' => 2,
+    },
+    2 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 720,
+	    'horizontal_blanking' => 138,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 16,
+	    'horizontal_sync_pulse_width' => 62,
+	    'vertical_sync_offset' => 9,
+	    'vertical_sync_pulse_width' => 6,
+    },
+    3 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 720,
+	    'horizontal_blanking' => 138,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 16,
+	    'horizontal_sync_pulse_width' => 62,
+	    'vertical_sync_offset' => 9,
+	    'vertical_sync_pulse_width' => 6,
+    },
+    4 => {
+	    'vertical_active' => 720,
+	    'vertical_blanking' => 30,
+	    'pixel_clock' => [ 74.175, 74.250 ],
+	    'horizontal_active' => 1280,
+	    'horizontal_blanking' => 370,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 110,
+	    'horizontal_sync_pulse_width' => 40,
+	    'vertical_sync_offset' => 5,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    5 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45, # alternating 22,23 per field
+	    'pixel_clock' => [ 74.175, 74.250 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 280,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 88,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4, # alternating 2,2.5 per field
+	    'vertical_sync_pulse_width' => 10, # 5 per field
+    },
+    6 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45, # alternating 22,23 per field
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 38,
+	    'horizontal_sync_pulse_width' => 124,
+	    'vertical_sync_offset' => 8, # alternating 4,4.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    7 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45, # alternating 22,23 per field
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 38,
+	    'horizontal_sync_pulse_width' => 124,
+	    'vertical_sync_offset' => 8, # alternating 4,4.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    8 => {
+	    'vertical_active' => 240,
+	    'vertical_blanking' => 22, # 23 also allowed
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 38,
+	    'horizontal_sync_pulse_width' => 124,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    9 => {
+	    'vertical_active' => 240,
+	    'vertical_blanking' => 22, # 23 also allowed
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 38,
+	    'horizontal_sync_pulse_width' => 124,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    10 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45, # alternating 22,23 per field
+	    'pixel_clock' => [ 54.000, 54.054 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 76,
+	    'horizontal_sync_pulse_width' => 248,
+	    'vertical_sync_offset' => 8, # alternating 4,4.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    11 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45, # alternating 22,23 per field
+	    'pixel_clock' => [ 54.000, 54.054 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 76,
+	    'horizontal_sync_pulse_width' => 248,
+	    'vertical_sync_offset' => 8, # alternating 4,4.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    12 => {
+	    'vertical_active' => 240,
+	    'vertical_blanking' => 22, # 23 also allowed
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 76,
+	    'horizontal_sync_pulse_width' => 248,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    13 => {
+	    'vertical_active' => 240,
+	    'vertical_blanking' => 22, # 23 also allowed
+	    'pixel_clock' => [ 27.000, 27.027 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 76,
+	    'horizontal_sync_pulse_width' => 248,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    14 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 54.000, 54.054 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 32,
+	    'horizontal_sync_pulse_width' => 124,
+	    'vertical_sync_offset' => 9,
+	    'vertical_sync_pulse_width' => 6,
+    },
+    15 => {
+	    'vertical_active' => 480,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 54.000, 54.054 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 32,
+	    'horizontal_sync_pulse_width' => 124,
+	    'vertical_sync_offset' => 9,
+	    'vertical_sync_pulse_width' => 6,
+    },
+    16 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 148.350, 148.500 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 280,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 88,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    # 50 Hz formats:
+    17 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49,
+	    'pixel_clock' => [ 27.000 ],
+	    'horizontal_active' => 720,
+	    'horizontal_blanking' => 144,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 12,
+	    'horizontal_sync_pulse_width' => 64,
+	    'vertical_sync_offset' => 5,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    18 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49,
+	    'pixel_clock' => [ 27.000 ],
+	    'horizontal_active' => 720,
+	    'horizontal_blanking' => 144,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 12,
+	    'horizontal_sync_pulse_width' => 64,
+	    'vertical_sync_offset' => 5,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    19 => {
+	    'vertical_active' => 720,
+	    'vertical_blanking' => 30,
+	    'pixel_clock' => [ 74.250 ],
+	    'horizontal_active' => 1280,
+	    'horizontal_blanking' => 700,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 440,
+	    'horizontal_sync_pulse_width' => 50,
+	    'vertical_sync_offset' => 5,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    20 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45, # alternating 22,23 per field
+	    'pixel_clock' => [ 74.250 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 720,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 528,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4, # alternating 2,2.5 per field
+	    'vertical_sync_pulse_width' => 10,
+    },
+    21 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49, # alternating 24,25 per field
+	    'pixel_clock' => [ 27.000 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 24,
+	    'horizontal_sync_pulse_width' => 126,
+	    'vertical_sync_offset' => 4, # alternating 2,2.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    22 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49, # alternating 24,25 per field
+	    'pixel_clock' => [ 27.000 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 24,
+	    'horizontal_sync_pulse_width' => 126,
+	    'vertical_sync_offset' => 4, # alternating 2,2.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    23 => {
+	    'vertical_active' => 288,
+	    'vertical_blanking' => 24, # or 25 or 26
+	    'pixel_clock' => [ 27.000 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 24,
+	    'horizontal_sync_pulse_width' => 126,
+	    'vertical_sync_offset' => 2,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    24 => {
+	    'vertical_active' => 288,
+	    'vertical_blanking' => 24, # or 25 or 26
+	    'pixel_clock' => [ 27.000 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 276,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 24,
+	    'horizontal_sync_pulse_width' => 126,
+	    'vertical_sync_offset' => 2,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    25 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49, # alternating 24,25 per field
+	    'pixel_clock' => [ 54.000 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 48,
+	    'horizontal_sync_pulse_width' => 252,
+	    'vertical_sync_offset' => 4, # alternating 2,2.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    26 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49, # alternating 24,25 per field
+	    'pixel_clock' => [ 54.000 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 1,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 48,
+	    'horizontal_sync_pulse_width' => 252,
+	    'vertical_sync_offset' => 4, # alternating 2,2.5 per field
+	    'vertical_sync_pulse_width' => 6,
+    },
+    27 => {
+	    'vertical_active' => 288,
+	    'vertical_blanking' => 24, # or 25 or 26
+	    'pixel_clock' => [ 54.000 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 48,
+	    'horizontal_sync_pulse_width' => 252,
+	    'vertical_sync_offset' => 2,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    28 => {
+	    'vertical_active' => 288,
+	    'vertical_blanking' => 24, # or 25 or 26
+	    'pixel_clock' => [ 54.000 ],
+	    'horizontal_active' => 2880,
+	    'horizontal_blanking' => 552,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 48,
+	    'horizontal_sync_pulse_width' => 252,
+	    'vertical_sync_offset' => 2,
+	    'vertical_sync_pulse_width' => 3,
+    },
+    29 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49,
+	    'pixel_clock' => [ 54.000 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 288,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "4:3",
+	    'horizontal_sync_offset' => 24,
+	    'horizontal_sync_pulse_width' => 128,
+	    'vertical_sync_offset' => 5,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    30 => {
+	    'vertical_active' => 576,
+	    'vertical_blanking' => 49,
+	    'pixel_clock' => [ 54.000 ],
+	    'horizontal_active' => 1440,
+	    'horizontal_blanking' => 288,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 24,
+	    'horizontal_sync_pulse_width' => 128,
+	    'vertical_sync_offset' => 5,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    31 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 148.500 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 720,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 528,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    # other formats:
+    32 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 74.175, 74.250 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 830,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 638,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    33 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 74.250 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 720,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 528,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 5,
+    },
+    34 => {
+	    'vertical_active' => 1080,
+	    'vertical_blanking' => 45,
+	    'pixel_clock' => [ 74.175, 74.250 ],
+	    'horizontal_active' => 1920,
+	    'horizontal_blanking' => 280,
+	    'interlaced' => 0,
+	    'aspect_ratio' => "16:9",
+	    'horizontal_sync_offset' => 528,
+	    'horizontal_sync_pulse_width' => 44,
+	    'vertical_sync_offset' => 4,
+	    'vertical_sync_pulse_width' => 5,
+    },
+ );
+
 sub within_limit {
     my ($value, $type, $limit) = @_;
     $type eq 'min' ? $value >= $limit : $value <= $limit;
@@ -338,9 +786,20 @@ sub parse_edid {
 		my $h = get_many_bits($v, 'cea_data_block_collection');
 		$dtd_offset -= $h->{size} + 1;
 
-		$v = unpack("x x$h->{size} a*", $v);
+		my $vv;
+		($vv, $v) = unpack("x a$h->{size} a*", $v);
 		if ($h->{type} == 0x02) { # Video Data Block
-		    $verbose && warn "video data block not handled\n";
+		    my @vmodes = unpack("a" x $h->{size}, $vv);
+		    foreach my $vmode (@vmodes) {
+			$h = get_many_bits($vmode, 'cea_video_data_block');
+			my $cea_mode = $cea_video_modes{$h->{mode}};
+			next if !$cea_mode;
+			foreach my $pixclock (@{$cea_mode->{pixel_clock}}) {
+			    my %det_mode = %$cea_mode;
+			    $det_mode{pixel_clock} = $pixclock;
+			    push @{$edid{detailed_timings}}, \%det_mode;
+			}
+		    }
 		}
 	    }