private byte[] CreateTsData(JT1078Package jt1078Package, bool isNeedHeader, Span <byte> span)
{
var buff = TSArrayPool.Rent(jt1078Package.Bodies.Length + 2048);
TSMessagePackWriter tSMessagePackWriter = new TSMessagePackWriter(buff);
if (TsFirst1078PackageDic.TryGetValue(jt1078Package.SIM, out var firstTimespan))
{
if ((jt1078Package.Timestamp - firstTimespan) > 10 * 1000)
{
//按设定的时间（默认为10秒）切分ts文件
}
var pes = tSEncoder.CreatePES(jt1078Package, 188);
tSMessagePackWriter.WriteArray(pes);
}
else
{
var sdt = tSEncoder.CreateSDT(jt1078Package);
tSMessagePackWriter.WriteArray(sdt);
var pat = tSEncoder.CreatePAT(jt1078Package);
tSMessagePackWriter.WriteArray(pat);
var pmt = tSEncoder.CreatePMT(jt1078Package);
tSMessagePackWriter.WriteArray(pmt);
var pes = tSEncoder.CreatePES(jt1078Package, 188);
tSMessagePackWriter.WriteArray(pes);
}
return(buff);
}
/// <summary>
/// 生成ts和m3u8文件
/// </summary>
/// <param name="jt1078Package"></param>
public void CreateTsData(JT1078Package jt1078Package)
{
string key = jt1078Package.GetKey();
string hlsFileDirectory = m3U8Option.HlsFileDirectory;
string m3u8FileName = Path.Combine(hlsFileDirectory, key, m3U8Option.M3U8FileName);
if (!File.Exists(m3u8FileName))
{
File.Create(m3u8FileName); //创建m3u8文件
}
var buff = TSArrayPool.Rent(jt1078Package.Bodies.Length + 1024);
TSMessagePackWriter tSMessagePackWriter = new TSMessagePackWriter(buff);
try
{
var curTsFileInfo = CreateTsFileInfo(key);
if (!curTsFileInfo.IsCreateTsFile)
{
var pes = tSEncoder.CreatePES(jt1078Package);
tSMessagePackWriter.WriteArray(pes);
CreateTsFile(curTsFileInfo.FileName, key, tSMessagePackWriter.FlushAndGetArray());
curTsFileInfo.Duration = (jt1078Package.Timestamp - curTsFileInfo.TsFirst1078PackageTimeStamp) / 1000.0;
//按设定的时间（默认为10秒）切分ts文件
if (curTsFileInfo.Duration > m3U8Option.TsFileMaxSecond)
{
var tsFileInfoQueue = ManageTsFileInfo(key, curTsFileInfo);
CreateM3U8File(curTsFileInfo, tsFileInfoQueue);
var newTsFileInfo = new TsFileInfo {
IsCreateTsFile = true, Duration = 0, TsFileSerialNo = ++curTsFileInfo.TsFileSerialNo
};
curTsFileInfoDic.TryUpdate(key, newTsFileInfo, curTsFileInfo);
}
}
else
{
curTsFileInfo.IsCreateTsFile = false;
curTsFileInfo.TsFirst1078PackageTimeStamp = jt1078Package.Timestamp;
curTsFileInfo.FileName = $"{curTsFileInfo.TsFileSerialNo}.ts";
var sdt = tSEncoder.CreateSDT(jt1078Package);
tSMessagePackWriter.WriteArray(sdt);
var pat = tSEncoder.CreatePAT(jt1078Package);
tSMessagePackWriter.WriteArray(pat);
var pmt = tSEncoder.CreatePMT(jt1078Package);
tSMessagePackWriter.WriteArray(pmt);
var pes = tSEncoder.CreatePES(jt1078Package);
tSMessagePackWriter.WriteArray(pes);
CreateTsFile(curTsFileInfo.FileName, key, tSMessagePackWriter.FlushAndGetArray());
}
}
finally
{
TSArrayPool.Return(buff);
}
}
public void ToBuffer(ref TSMessagePackWriter writer)
{
writer.WriteArray(NALU0x09);
if (NALUs != null)
{
foreach (var nalu in NALUs)
{
writer.WriteArray(nalu);
}
}
}
public void ToBuffer(ref TSMessagePackWriter writer)
{
writer.WriteArray(PESStartCode);
writer.WriteByte(StreamId);
writer.WriteUInt16(PESPacketLength);
writer.WriteByte(Flag1);
writer.WriteByte((byte)PTS_DTS_Flag);
if (PTS_DTS_Flag == PTS_DTS_Flags.all)
{
writer.WriteByte(10);
writer.WriteInt5(ToPTS());
writer.WriteInt5(ToDTS());
}
else if (PTS_DTS_Flag == PTS_DTS_Flags.pts)
{
writer.WriteByte(5);
writer.WriteInt5(ToPTS());
}
else if (PTS_DTS_Flag == PTS_DTS_Flags.dts)
{
writer.WriteByte(5);
writer.WriteInt5(ToDTS());
}
Payload.ToBuffer(ref writer);
}
public void ToBuffer(ref TSMessagePackWriter writer)
{
Header.ToBuffer(ref writer);
writer.WriteByte(TableId);
//SectionSyntaxIndicator Zero Reserved1 SectionLength
//1 0 11 0000 0000 0000
//(ushort)(0b_1011_0000_0000_0000 | SectionLength)
writer.Skip(2, out int SectionLengthPosition);
writer.WriteUInt16(TransportStreamId);
//Reserved2 VersionNumber CurrentNextIndicator
//11 00000 1
var a = 0xC0 & (Reserved2 << 6);
var b = 0x3E & (VersionNumber << 3);
var c = (byte)(a | b | CurrentNextIndicator);
writer.WriteByte(c);
writer.WriteByte(SectionNumber);
writer.WriteByte(LastSectionNumber);
if (Programs != null)
{
foreach (var program in Programs)
{
program.ToBuffer(ref writer);
}
}
const int crcLength = 4;
writer.WriteUInt16Return((ushort)(0b_1011_0000_0000_0000 | (ushort)(writer.GetCurrentPosition() - SectionLengthPosition - 2) + crcLength), SectionLengthPosition);
//打包ts流时PAT和PMT表是没有adaptation field的，不够的长度直接补0xff即可。
//ts header(4B) + adaptation field length(1)
writer.WriteCRC32(5);
var size = TSConstants.FiexdPackageLength - writer.GetCurrentPosition();
writer.WriteArray(Enumerable.Range(0, size).Select(s => (byte)0xFF).ToArray());
}
public void ToBuffer(ref TSMessagePackWriter writer)
{
Header.PackageType = PackageType.SDT;
Header.ToBuffer(ref writer);
writer.WriteByte(TableId);
writer.Skip(2, out int SectionLengthPosition);
writer.WriteUInt16(TransportStreamId);
writer.WriteByte((byte)(Reserved2 << 6 | VersionNumber << 1 | CurrentNextIndicator));
writer.WriteByte(SectionNumber);
writer.WriteByte(LastSectionNumber);
writer.WriteUInt16(OriginalNetworkId);
writer.WriteByte(ReservedFutureUse2);
foreach (var service in Services)
{
service.ToBuffer(ref writer);
}
ushort servicesLength = (ushort)(writer.GetCurrentPosition() - SectionLengthPosition - 2);
const int crcLength = 4;
writer.WriteUInt16Return((ushort)(SectionSyntaxIndicator << 15 | ReservedFutureUse1 << 14 | Reserved1 << 12 | servicesLength + crcLength), SectionLengthPosition);
writer.WriteCRC32(5);
var size = TSConstants.FiexdPackageLength - writer.GetCurrentPosition();
writer.WriteArray(Enumerable.Range(0, size).Select(s => (byte)0xFF).ToArray());
}
public void ToBuffer(ref TSMessagePackWriter writer)
{
writer.WriteByte((byte)PCRIncluded);
if (PCRIncluded == PCRInclude.包含)
{
writer.WriteInt6(ToPCR());
}
if (FillSize > 0)
{
writer.WriteArray(Enumerable.Range(0, FillSize).Select(s => (byte)0xFF).ToArray());
}
}
public void ToBuffer(ref TSMessagePackWriter writer)
{
Header.ToBuffer(ref writer);
writer.WriteArray(Payload);
}