public byte[] CreatePMT(JT1078Package jt1078Package, int minBufferSize = 188)
{
byte[] buffer = TSArrayPool.Rent(minBufferSize);
try
{
TS_PMT_Package package = new TS_PMT_Package();
package.Header = new TS_Header();
package.Header.ContinuityCounter = 0;
package.Header.AdaptationFieldControl = AdaptationFieldControl.无自适应域_仅含有效负载;
package.Header.PayloadUnitStartIndicator = 1;
package.Header.PID = 4096;
package.TableId = 0x02;
package.Components = new List <TS_PMT_Component>();
package.Components.Add(new TS_PMT_Component
{
StreamType = StreamType.h264,
ElementaryPID = 256,
ESInfoLength = 0
});
TSMessagePackWriter messagePackReader = new TSMessagePackWriter(buffer);
package.ToBuffer(ref messagePackReader);
return(messagePackReader.FlushAndGetArray());
}
finally
{
TSArrayPool.Return(buffer);
}
}
public byte[] CreatePAT(JT1078Package jt1078Package, int minBufferSize = 188)
{
byte[] buffer = TSArrayPool.Rent(minBufferSize);
try
{
TS_PAT_Package package = new TS_PAT_Package();
package.Header = new TS_Header();
package.Header.ContinuityCounter = 0;
package.Header.AdaptationFieldControl = AdaptationFieldControl.无自适应域_仅含有效负载;
package.Header.PayloadUnitStartIndicator = 1;
package.Header.PID = 0;
package.Programs = new List <TS_PAT_Program>();
package.Programs.Add(new TS_PAT_Program()
{
ProgramNumber = 0x0001,
PID = 0x1000,
});
TSMessagePackWriter messagePackReader = new TSMessagePackWriter(buffer);
package.ToBuffer(ref messagePackReader);
return(messagePackReader.FlushAndGetArray());
}
finally
{
TSArrayPool.Return(buffer);
}
}
//private ConcurrentDictionary<string, byte> AudioCounter = new ConcurrentDictionary<string, byte>();
public byte[] CreatePAT(JT1078Package jt1078Package, int minBufferSize = 188)
{
byte[] buffer = TSArrayPool.Rent(minBufferSize);
try
{
TS_PAT_Package package = new TS_PAT_Package();
package.Header = new TS_Header();
package.Header.ContinuityCounter = PATCounter.AddOrUpdate(jt1078Package.GetKey(), 0, (a, b) =>
{
if (b > 0xf)
{
return(0);
}
else
{
return((byte)(b + 1));
}
});
package.Header.AdaptationFieldControl = AdaptationFieldControl.无自适应域_仅含有效负载;
package.Header.PayloadUnitStartIndicator = 1;
package.Header.PID = 0;
TSMessagePackWriter messagePackReader = new TSMessagePackWriter(buffer);
package.ToBuffer(ref messagePackReader);
return(messagePackReader.FlushAndGetArray());
}
finally
{
TSArrayPool.Return(buffer);
}
}
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);
}
}
//private ConcurrentDictionary<string, byte> AudioCounter = new ConcurrentDictionary<string, byte>();
public byte[] CreateSDT(JT1078Package jt1078Package, int minBufferSize = 188)
{
byte[] buffer = TSArrayPool.Rent(minBufferSize);
try
{
TS_SDT_Package package = new TS_SDT_Package();
package.Header = new TS_Header();
package.Header.PID = 0x0011;
package.Header.AdaptationFieldControl = AdaptationFieldControl.无自适应域_仅含有效负载;
package.Header.ContinuityCounter = 0;
package.TableId = 0x42;
package.TransportStreamId = 0x0001;
package.VersionNumber = 0;
package.CurrentNextIndicator = 0x01;
package.SectionNumber = 0x00;
package.LastSectionNumber = 0x00;
package.OriginalNetworkId = 0xFF01;
package.Services = new List <TS_SDT_Service>();
package.Services.Add(new TS_SDT_Service()
{
ServiceId = 0x0001,
EITScheduleFlag = 0x00,
EITPresentFollowingFlag = 0x00,
RunningStatus = TS_SDT_Service_RunningStatus.运行,
FreeCAMode = 0x00,
Descriptors = new List <TS_SDT_Service_Descriptor>
{
new TS_SDT_Service_Descriptor {
Tag = 0x48,
ServiceType = TS_SDT_Service_Descriptor_ServiceType.数字电视业务,
ServiceProvider = ServiceProvider,
ServiceName = ServiceName
}
}
});
TSMessagePackWriter writer = new TSMessagePackWriter(buffer);
package.ToBuffer(ref writer);
return(writer.FlushAndGetArray());
}
finally
{
TSArrayPool.Return(buffer);
}
}
public byte[] CreatePES(JT1078Package jt1078Package, int minBufferSize = 188)
{
//将1078一帧的数据拆分成一小段一小段的PES包
byte[] buffer = TSArrayPool.Rent(jt1078Package.Bodies.Length + minBufferSize);
TSMessagePackWriter messagePackReader = new TSMessagePackWriter(buffer);
//TSHeader + Adaptation + PES1
//TSHeader + PES2
//TSHeader + Adaptation + PESN
try
{
int totalLength = 0;
TS_Package package = new TS_Package();
package.Header = new TS_Header();
//ts header 4
totalLength += 4;
package.Header.PID = 256;
package.Header.PackageType = PackageType.Data_Start;
string key = jt1078Package.GetKey();
if (VideoCounter.TryGetValue(key, out byte counter))
{
if (counter > 0xf)
{
counter = 0;
}
}
else
{
VideoCounter.Add(key, counter);
}
package.Header.ContinuityCounter = counter;
counter++;
package.Header.PayloadUnitStartIndicator = 1;
package.Header.Adaptation = new TS_AdaptationInfo();
package.Payload = new PES_Package();
package.Payload.StreamId = 0xe0;
package.Payload.PESPacketLength = 0;
//PESStartCode + StreamId+ Flag1 + PTS_DTS_Flag + PESPacketLength
//3 + 1 + 1 + 1 + 2
totalLength += (3 + 1 + 1 + 1 + 2);
package.Payload.PTS_DTS_Flag = PTS_DTS_Flags.all;
long timestamp = (long)jt1078Package.Timestamp;
if (jt1078Package.Label3.DataType == JT1078DataType.视频I帧)
{
//ts header adaptation
//PCRIncluded + Timestamp
//1 + 6
totalLength += (1 + 6);
package.Header.Adaptation.PCRIncluded = PCRInclude.包含;
package.Header.Adaptation.Timestamp = timestamp;
package.Payload.DTS = timestamp * H264DefaultHZ;
package.Payload.PTS = package.Payload.DTS + jt1078Package.LastIFrameInterval * H264DefaultHZ;
}
else if (jt1078Package.Label3.DataType == JT1078DataType.视频P帧)
{
//ts header adaptation
//PCRIncluded
//1
totalLength += 1;
package.Header.Adaptation.PCRIncluded = PCRInclude.包含;
package.Payload.DTS = timestamp * H264DefaultHZ;
package.Payload.PTS = package.Payload.DTS + jt1078Package.LastFrameInterval * H264DefaultHZ;
}
//Flag1 + PTS_DTS_Flag + DTS + PTS
//1 + 1 + 5 + 5 = 12
totalLength += 12;
totalLength += TSConstants.FiexdESPackageHeaderLength;
//根据计算剩余的长度进行是否需要填充第一包
var remainingLength = FiexdTSLength - totalLength;
int index = 0;
//情况1:1078的第一包不够剩余(remainingLength)字节
//情况2:1078的第一包比剩余(remainingLength)字节多
//情况3: 1078的第一包等于剩余(remainingLength)字节
//填充大小
int fullSize = jt1078Package.Bodies.Length - remainingLength;
package.Payload.Payload = new ES_Package();
if (fullSize < 0)
{
//这个很重要，需要控制
package.Header.AdaptationFieldControl = AdaptationFieldControl.时带有自适应域和有效负载;
//还差一点
fullSize = Math.Abs(fullSize);
package.Header.Adaptation.FillSize = (byte)fullSize;
package.Payload.Payload.NALUs = new List <byte[]>()
{
jt1078Package.Bodies
};
package.ToBuffer(ref messagePackReader);
}
else if (fullSize == 0)
{
//这个很重要，需要控制
package.Header.AdaptationFieldControl = AdaptationFieldControl.无自适应域_仅含有效负载;
//刚刚好
package.Header.Adaptation.FillSize = 0;
package.Payload.Payload.NALUs = new List <byte[]>()
{
jt1078Package.Bodies
};
package.ToBuffer(ref messagePackReader);
}
else
{
//这个很重要，需要控制
package.Header.AdaptationFieldControl = AdaptationFieldControl.时带有自适应域和有效负载;
//太多了，需要拆分
package.Header.Adaptation.FillSize = 0;
package.Payload.Payload.NALUs = new List <byte[]>();
ReadOnlySpan <byte> dataReader = jt1078Package.Bodies;
package.Payload.Payload.NALUs.Add(dataReader.Slice(index, remainingLength).ToArray());
index += remainingLength;
package.ToBuffer(ref messagePackReader);
while (index != jt1078Package.Bodies.Length)
{
if (counter > 0xf)
{
counter = 0;
}
int segmentFullSize = jt1078Package.Bodies.Length - index;
if (segmentFullSize >= FiexdSegmentPESLength)
{
CreateSegmentPES(ref messagePackReader, dataReader.Slice(index, FiexdSegmentPESLength).ToArray(), counter);
index += FiexdSegmentPESLength;
}
else
{
var nalu = dataReader.Slice(index, segmentFullSize).ToArray();
//当等于183字节的时候
//12698D08E8DBDBCDF6C6FA19DD88490E908D687D1755BE87DF82754BE2D245270569310B3030A4904DF1883ED09A68CA1C79BC4B97642B5BC095A55E56868D05370D3BC8B7B60B4642A486B6852656C01FFADACEF4BD4320E8BE9C54D44177A433CC37493FA1D8ACD0164E92454D03B6EC0617B133AEF43B599BF85632AB9B5FF671F0DDAA07E8F279F5639BA88E3FFFFCE1D3351FAF43DF23BCEB7E3B2CAB3EABAED23B25097B7F51FF38E8D0EBAB589CEC42B0440EB8
//if (jt1078Package.Label3.DataType == JT1078DataType.视频P帧)
//{
// string hex = dataReader.Slice(index, segmentFullSize).ToArray().ToHexString();
//}
CreateSegmentPES(ref messagePackReader, dataReader.Slice(index, segmentFullSize).ToArray(), counter);
index += segmentFullSize;
}
counter++;
}
}
VideoCounter[key] = counter;
return(messagePackReader.FlushAndGetArray());
}
finally
{
TSArrayPool.Return(buffer);
}
}
public byte[] CreatePES(JT1078Package jt1078Package, int minBufferSize = 188)
{
//将1078一帧的数据拆分成一小段一小段的PES包
byte[] buffer = TSArrayPool.Rent(jt1078Package.Bodies.Length + minBufferSize);
TSMessagePackWriter messagePackReader = new TSMessagePackWriter(buffer);
//TSHeader + Adaptation + PES1
//TSHeader + PES2
//TSHeader + Adaptation + PESN
try
{
int totalLength = 0;
TS_Package package = new TS_Package();
package.Header = new TS_Header();
//ts header 4
totalLength += 4;
package.Header.PID = 256;
string key = jt1078Package.GetKey();
if (VideoCounter.TryGetValue(key, out byte counter))
{
if (counter > 0xf)
{
counter = 0;
}
package.Header.ContinuityCounter = counter++;
VideoCounter.TryUpdate(key, counter, counter);
}
else
{
package.Header.ContinuityCounter = counter++;
VideoCounter.TryAdd(key, counter);
}
package.Header.PayloadUnitStartIndicator = 1;
package.Header.Adaptation = new TS_AdaptationInfo();
package.Payload = new PES_Package();
package.Payload.StreamId = 0xe0;
package.Payload.PESPacketLength = 0;
//PESStartCode + StreamId + PESPacketLength
//3 + 1 + 2
totalLength += (3 + 1 + 2);
package.Payload.PTS_DTS_Flag = PTS_DTS_Flags.all;
if (jt1078Package.Label3.DataType == JT1078DataType.视频I帧)
{
//ts header adaptation
//PCRIncluded + PCR
//1 + 5
totalLength += (1 + 5);
package.Header.Adaptation.PCRIncluded = PCRInclude.包含;
package.Header.Adaptation.PCR = jt1078Package.LastIFrameInterval;
package.Payload.DTS = jt1078Package.LastIFrameInterval;
package.Payload.PTS = jt1078Package.LastIFrameInterval;
}
else
{
//ts header adaptation
//PCRIncluded
//1
totalLength += 1;
package.Header.Adaptation.PCRIncluded = PCRInclude.包含;
package.Payload.DTS = jt1078Package.LastFrameInterval;
package.Payload.PTS = jt1078Package.LastFrameInterval;
}
//Flag1 + PTS_DTS_Flag + DTS + PTS
//1 + 1 + 5 + 5
totalLength += 12;
//根据计算剩余的长度进行是否需要填充第一包
var remainingLength = FiexdTSLength - totalLength;
int index = 0;
//情况1:1078的第一包不够剩余(remainingLength)字节
//情况2:1078的第一包比剩余(remainingLength)字节多
//情况3: 1078的第一包等于剩余(remainingLength)字节
//填充大小
int fullSize = jt1078Package.Bodies.Length - remainingLength;
package.Payload.Payload = new ES_Package();
if (fullSize < 0)
{
//这个很重要，需要控制
package.Header.AdaptationFieldControl = AdaptationFieldControl.时带有自适应域和有效负载;
//还差一点
fullSize = Math.Abs(fullSize);
package.Header.Adaptation.FillSize = (byte)fullSize;
package.Payload.Payload.NALUs = new List <byte[]>()
{
jt1078Package.Bodies
};
package.ToBuffer(ref messagePackReader);
}
else if (fullSize == 0)
{
//这个很重要，需要控制
package.Header.AdaptationFieldControl = AdaptationFieldControl.无自适应域_仅含有效负载;
//刚刚好
package.Header.Adaptation.FillSize = 0;
package.Payload.Payload.NALUs = new List <byte[]>()
{
jt1078Package.Bodies
};
package.ToBuffer(ref messagePackReader);
}
else
{
//这个很重要，需要控制
package.Header.AdaptationFieldControl = AdaptationFieldControl.时带有自适应域和有效负载;
//太多了，需要拆分
package.Header.Adaptation.FillSize = 0;
package.Payload.Payload.NALUs = new List <byte[]>();
ReadOnlySpan <byte> dataReader = jt1078Package.Bodies;
package.Payload.Payload.NALUs.Add(dataReader.Slice(index, remainingLength).ToArray());
index += remainingLength;
package.ToBuffer(ref messagePackReader);
while (index != jt1078Package.Bodies.Length)
{
if (counter > 0xf)
{
counter = 0;
}
int segmentFullSize = jt1078Package.Bodies.Length - index;
if (segmentFullSize >= FiexdSegmentPESLength)
{
CreateSegmentPES(ref messagePackReader, dataReader.Slice(index, FiexdSegmentPESLength).ToArray(), counter++);
}
else
{
CreateSegmentPES(ref messagePackReader, dataReader.Slice(index, segmentFullSize).ToArray(), counter++);
index += segmentFullSize;
}
}
VideoCounter.TryUpdate(key, counter, counter);
}
return(messagePackReader.FlushAndGetArray());
}
finally
{
TSArrayPool.Return(buffer);
}
}
