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Work on mcc

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This commit is contained in:
Nikolaj Olsson 2021-03-29 11:10:18 +02:00
parent 2a7f0522d6
commit 4aac94ddc3
4 changed files with 19 additions and 19 deletions
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10
src/libse/Cea708/CcDataSection.cs
View File

@ -64,8 +64,8 @@ namespace Nikse.SubtitleEdit.Core.Cea708
{
Valid = true,
Type = 0,
Data1 = 0x97,
Data2 = 0xa2,
Data1 = 0x80,
Data2 = 0x80,
};
}
else if (i == 1)
@ -82,13 +82,13 @@ namespace Nikse.SubtitleEdit.Core.Cea708
{
var rollingSequence = sequenceCount % 4; // rolling sequence 0-3
var ccContentLength = bytes.Length / 2 + 2;
var x = (byte)((rollingSequence << 6) + ccContentLength);
var sequenceAndLength = (byte)((rollingSequence << 6) + ccContentLength);
CcData[i] = new CcData
{
Valid = true,
Type = 3,
Data1 = (byte)x,
Data2 = 0x33,
Data1 = sequenceAndLength,
Data2 = 0x33, // What is this?
};
}
else

9
src/libse/Cea708/CcServiceInfoSection.cs
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@ -23,18 +23,13 @@ namespace Nikse.SubtitleEdit.Core.Cea708
Start = true;
Change = true;
Complete = true;
ServiceCount = 2;
ServiceCount = 1;
CcServiceInfoSectionElements = new[]
{
new CcServiceInfoSectionElement
{
CaptionServiceNumber = 0,
ServiceDataByte = new byte[] { 32, 32, 32, 126, 127, 255},
},
new CcServiceInfoSectionElement
{
CaptionServiceNumber = 1,
ServiceDataByte = new byte[] { 101, 110, 103, 193, 127, 255},
ServiceDataByte = new byte[] { 0x65, 0x6e, 0x67, 0xc1, 0xff, 0xff },
},
};
}

9
src/libse/Cea708/Smpte291M.cs
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@ -48,7 +48,6 @@ namespace Nikse.SubtitleEdit.Core.Cea708
{
DataId = 0x61;
SecondaryDataId = 1;
DataCount = 0x59;
CaptionDistributionPacketId = 0x9669;
CaptionDistributionPacketDataCount = 0x59;
CaptionDistributionPacketFramingRate = 4; // 29.97
@ -64,6 +63,8 @@ namespace Nikse.SubtitleEdit.Core.Cea708
CcDataSectionCcData = new CcDataSection(ccDataCount, bytes, sequenceCount);
CcServiceInfoSection = new CcServiceInfoSection();
DataCount = 8 + CcDataSectionCcData.GetLength() + CcServiceInfoSection.GetLength();
}
public Smpte291M(byte[] bytes)
@ -138,9 +139,13 @@ namespace Nikse.SubtitleEdit.Core.Cea708
0xbb
}).ToArray();
// Data count
result[2] = (byte)(result.Length - 4);
result[5] = (byte)(result.Length - 4);
// Calculate number that will make the checksum zero
long total = 0;
for (var i = 3; i < result.Length - 3; i++)
for (var i = 3; i < result.Length - 2; i++)
{
total += result[i];
}

10
src/libse/Cea708/VancDataWriter.cs
View File

@ -32,11 +32,11 @@ namespace Nikse.SubtitleEdit.Core.Cea708
{
var bytes = new List<byte>();
var smpte291M = new Smpte291M(counter, 20, bytes.ToArray());
smpte291M.CcDataSectionCcData.CcData[2].Valid = false;
smpte291M.CcDataSectionCcData.CcData[2].Type = 2;
smpte291M.CcDataSectionCcData.CcData[2].Data1 = 0;
smpte291M.CcDataSectionCcData.CcData[2].Data2 = 0;
smpte291M.CcDataSectionCcData.CcData[3].Valid = false;
//smpte291M.CcDataSectionCcData.CcData[2].Valid = false;
//smpte291M.CcDataSectionCcData.CcData[2].Type = 2;
//smpte291M.CcDataSectionCcData.CcData[2].Data1 = 0;
//smpte291M.CcDataSectionCcData.CcData[2].Data2 = 0;
//smpte291M.CcDataSectionCcData.CcData[3].Valid = false;
var resultBytes = smpte291M.GetBytes();
var hex = ByteArrayToHexString(resultBytes);
return hex;