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This commit is contained in:
Nikolaj Olsson 2021-03-27 14:01:32 +01:00
parent 3b6b8abac1
commit 36ff0bc959
2 changed files with 88 additions and 7 deletions
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13
src/libse/Cea708/VancDataWriter.cs
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@ -28,6 +28,19 @@ namespace Nikse.SubtitleEdit.Core.Cea708
return hex;
}
public static string GenerateEmpty(int counter)
{
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;
var resultBytes = smpte291M.GetBytes();
var hex = ByteArrayToHexString(resultBytes);
return hex;
}
public static string[] GenerateLinesFromText(string input, int counter)
{
//TODO: improve italic support

82
src/libse/SubtitleFormats/MacCaption10.cs
View File

@ -57,33 +57,101 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
sb.AppendLine();
sb.AppendLine("UUID=" + Guid.NewGuid().ToString().ToUpperInvariant());// UUID=9F6112F4-D9D0-4AAF-AA95-854710D3B57A
sb.AppendLine("Creation Program=Subtitle Edit");
sb.AppendLine("Creation Date=" + DateTime.Now.ToLongDateString());
sb.AppendLine("Creation Time=" + DateTime.Now.ToShortTimeString());
sb.AppendLine($"Creation Date={DateTime.Now.ToLongDateString()}");
sb.AppendLine($"Creation Time={DateTime.Now:HH:mm:ss}");
sb.AppendLine("Time Code Rate=30DF"); // 30DF = 30 drop frame = 29.97
sb.AppendLine();
int counter = 0;
for (int i = 0; i < subtitle.Paragraphs.Count; i++)
Configuration.Settings.General.CurrentFrameRate = GetFrameForCalculation(29.97);
var timeCode = new TimeCode();
if (subtitle.Paragraphs.Count > 0 && subtitle.Paragraphs[0].StartTime.Hours > 0)
{
timeCode = new TimeCode(subtitle.Paragraphs[0].StartTime.Hours, 0, 0, 0);
}
var i = 0;
var counter = 0;
int frameNo = 0;
while (i < subtitle.Paragraphs.Count)
{
var p = subtitle.Paragraphs[i];
if (i == 0)
if (timeCode.TotalMilliseconds < p.StartTime.TotalMilliseconds)
{
var firstText = VancDataWriter.GenerateTextInit(counter++);
sb.AppendLine($"{ToTimeCode(p.StartTime.TotalMilliseconds)}\t{CompressHex(firstText)}");
// write empty lines (filler)
var empty = VancDataWriter.GenerateEmpty(counter++);
var s = $"{ToTimeCode(timeCode.TotalMilliseconds)}\t{CompressHex(empty)}";
sb.AppendLine(s);
frameNo = StepToNextFrame(frameNo, timeCode);
continue;
}
// write text lines
var lines = VancDataWriter.GenerateLinesFromText(p.Text, counter);
counter += lines.Length;
foreach (var line in lines)
{
sb.AppendLine($"{ToTimeCode(p.StartTime.TotalMilliseconds)}\t{CompressHex(line)}");
}
frameNo = StepToNextFrame(frameNo, timeCode);
// filler between start/end text
while (timeCode.TotalMilliseconds < p.EndTime.TotalMilliseconds)
{
// write empty lines (filler)
var empty = VancDataWriter.GenerateEmpty(counter++);
sb.AppendLine($"{ToTimeCode(timeCode.TotalMilliseconds)}\t{CompressHex(empty)}");
frameNo = StepToNextFrame(frameNo, timeCode);
}
// write end text
var endTimeText = VancDataWriter.GenerateTextInit(counter++);
sb.AppendLine($"{ToTimeCode(p.EndTime.TotalMilliseconds)}\t{CompressHex(endTimeText)}");
frameNo = StepToNextFrame(frameNo, timeCode);
i++;
}
//int counter = 0;
//for (int i = 0; i < subtitle.Paragraphs.Count; i++)
//{
// var p = subtitle.Paragraphs[i];
// if (i == 0)
// {
// var firstText = VancDataWriter.GenerateTextInit(counter++);
// sb.AppendLine($"{ToTimeCode(p.StartTime.TotalMilliseconds)}\t{CompressHex(firstText)}");
// }
// var lines = VancDataWriter.GenerateLinesFromText(p.Text, counter);
// counter += lines.Length;
// foreach (var line in lines)
// {
// sb.AppendLine($"{ToTimeCode(p.StartTime.TotalMilliseconds)}\t{CompressHex(line)}");
// }
// var endTimeText = VancDataWriter.GenerateTextInit(counter++);
// sb.AppendLine($"{ToTimeCode(p.EndTime.TotalMilliseconds)}\t{CompressHex(endTimeText)}");
//}
var lastLine = VancDataWriter.GenerateEmpty(counter);
sb.AppendLine($"{ToTimeCode(timeCode.TotalMilliseconds)}\t{CompressHex(lastLine)}");
return sb.ToString();
}
private static int StepToNextFrame(int frameNo, TimeCode timeCode)
{
frameNo++;
if (frameNo > 29)
{
timeCode.TotalMilliseconds = new TimeCode(timeCode.Hours, timeCode.Minutes, timeCode.Seconds + 1, 0).TotalMilliseconds;
frameNo = 0;
}
else
{
timeCode.TotalMilliseconds += FramesToMilliseconds(1);
}
return frameNo;
}
private static string ToTimeCode(double totalMilliseconds)
{
var ts = TimeSpan.FromMilliseconds(totalMilliseconds);