public void FMp4Encoder()
{
for (var i = 0; i < N; i++)
{
var buffer = fmp4Encoder.EncoderOtherVideoBox(FMp4H264NALUs);
}
}
public void Test4()
{
FMp4Encoder fMp4Encoder = new FMp4Encoder();
var packages = ParseNALUTests();
var filepath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "H264", "JT1078_4.mp4");
if (File.Exists(filepath))
{
File.Delete(filepath);
}
using var fileStream = new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Write);
var package1 = packages[0];
var buffer1 = fMp4Encoder.EncoderFirstVideoBox(package1);
fileStream.Write(buffer1);
int moofOffset = buffer1.Length;
foreach (var package in packages.Take(2))
{
var otherBuffer = fMp4Encoder.EncoderOtherVideoBox(package, (ulong)moofOffset);
moofOffset += otherBuffer.Length;
fileStream.Write(otherBuffer);
}
fileStream.Close();
}
public void Test4()
{
FMp4Encoder fMp4Encoder = new FMp4Encoder();
H264Decoder h264Decoder = new H264Decoder();
var packages = ParseNALUTests();
var filepath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "H264", "JT1078_5.mp4");
if (File.Exists(filepath))
{
File.Delete(filepath);
}
using var fileStream = new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Write);
var ftyp = fMp4Encoder.EncoderFtypBox();
fileStream.Write(ftyp);
var iNalus = h264Decoder.ParseNALU(packages[0]);
//判断第一帧是否关键帧
var moov = fMp4Encoder.EncoderMoovBox(
iNalus.FirstOrDefault(f => f.NALUHeader.NalUnitType == NalUnitType.SPS),
iNalus.FirstOrDefault(f => f.NALUHeader.NalUnitType == NalUnitType.PPS));
fileStream.Write(moov);
List <H264NALU> nalus = new List <H264NALU>();
foreach (var package in packages)
{
List <H264NALU> h264NALUs = h264Decoder.ParseNALU(package);
foreach (var nalu in h264NALUs)
{
if (nalu.Slice)
{
//H264 NALU slice first_mb_in_slice
nalus.Add(nalu);
}
else
{
if (nalus.Count > 0)
{
var otherBuffer = fMp4Encoder.EncoderOtherVideoBox(nalus);
fileStream.Write(otherBuffer);
nalus.Clear();
}
nalus.Add(nalu);
}
}
}
fileStream.Close();
}
public void a()
{
List <JT1078Package> packages = new List <JT1078Package>();
var lines = File.ReadAllLines(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "H264", "jt1078_3.txt"));
int mergeBodyLength = 0;
foreach (var line in lines)
{
var data = line.Split(',');
var bytes = data[6].ToHexBytes();
JT1078Package package = JT1078Serializer.Deserialize(bytes);
mergeBodyLength += package.DataBodyLength;
var packageMerge = JT1078Serializer.Merge(package);
if (packageMerge != null)
{
packages.Add(packageMerge);
}
}
List <byte[]> first = new List <byte[]>();
//var styp = fMp4Encoder.EncoderStypBox();
//first.Add(styp);
//q.Enqueue(styp);
var ftyp = fMp4Encoder.EncoderFtypBox();
//q.Enqueue(ftyp);
first.Add(ftyp);
var package1 = packages[0];
var nalus1 = h264Decoder.ParseNALU(package1);
var moov = fMp4Encoder.EncoderMoovBox(
nalus1.FirstOrDefault(f => f.NALUHeader.NalUnitType == NalUnitType.SPS),
nalus1.FirstOrDefault(f => f.NALUHeader.NalUnitType == NalUnitType.PPS));
//q.Enqueue(moov);
first.Add(moov);
q.Add(first.SelectMany(s => s).ToArray());
List <NalUnitType> filter = new List <NalUnitType>()
{
NalUnitType.SEI, NalUnitType.SPS, NalUnitType.PPS, NalUnitType.AUD
};
List <H264NALU> nalus = new List <H264NALU>();
foreach (var package in packages)
{
List <H264NALU> h264NALUs = h264Decoder.ParseNALU(package);
foreach (var nalu in h264NALUs)
{
if (nalu.Slice)
{
//H264 NALU slice first_mb_in_slice
nalus.Add(nalu);
}
else
{
if (nalus.Count > 0)
{
var otherBuffer = fMp4Encoder.EncoderOtherVideoBox(nalus);
q.Add(otherBuffer);
nalus.Clear();
}
nalus.Add(nalu);
}
}
}
}
protected async override Task ExecuteAsync(CancellationToken stoppingToken)
{
while (!stoppingToken.IsCancellationRequested)
{
var data = await messageDispatchDataService.FlvChannel.Reader.ReadAsync();
try
{
var nalus = H264Decoder.ParseNALU(data);
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.LogDebug(JsonSerializer.Serialize(HttpSessionManager.GetAll()));
Logger.LogDebug($"{data.SIM},{data.SN},{data.LogicChannelNumber},{data.Label3.DataType.ToString()},{data.Label3.SubpackageType.ToString()},{data.Bodies.ToHexString()}");
}
string key = $"{data.GetKey()}_{ikey}";
if (data.Label3.DataType == Protocol.Enums.JT1078DataType.视频I帧)
{
var moov = FM4Encoder.EncoderMoovBox(nalus.FirstOrDefault(f => f.NALUHeader.NalUnitType == NalUnitType.SPS),
nalus.FirstOrDefault(f => f.NALUHeader.NalUnitType == NalUnitType.PPS));
memoryCache.Set(key, moov);
}
var httpSessions = HttpSessionManager.GetAllBySimAndChannelNo(data.SIM.TrimStart('0'), data.LogicChannelNumber);
var firstHttpSessions = httpSessions.Where(w => !w.FirstSend).ToList();
if (firstHttpSessions.Count > 0)
{
try
{
var flvVideoBuffer = FM4Encoder.EncoderFtypBox();
memoryCache.TryGetValue(key, out byte[] moovBuffer);
foreach (var session in firstHttpSessions)
{
HttpSessionManager.SendAVData(session, flvVideoBuffer, true);
if (moovBuffer != null)
{
HttpSessionManager.SendAVData(session, moovBuffer, false);
}
}
}
catch (Exception ex)
{
Logger.LogError(ex, $"{data.SIM},{true},{data.SN},{data.LogicChannelNumber},{data.Label3.DataType.ToString()},{data.Label3.SubpackageType.ToString()},{data.Bodies.ToHexString()}");
}
}
var otherHttpSessions = httpSessions.Where(w => w.FirstSend).ToList();
if (otherHttpSessions.Count > 0)
{
try
{
if (!avFrameDict.TryGetValue(key, out List <H264NALU> frames))
{
frames = new List <H264NALU>();
avFrameDict.TryAdd(key, frames);
}
foreach (var nalu in nalus)
{
if (nalu.Slice)
{
//H264 NALU slice first_mb_in_slice
frames.Add(nalu);
}
else
{
if (nalus.Count > 0)
{
var otherBuffer = FM4Encoder.EncoderOtherVideoBox(frames);
foreach (var session in otherHttpSessions)
{
if (otherBuffer != null)
{
HttpSessionManager.SendAVData(session, otherBuffer, false);
}
}
frames.Clear();
}
frames.Add(nalu);
}
}
}
catch (Exception ex)
{
Logger.LogError(ex, $"{data.SIM},{false},{data.SN},{data.LogicChannelNumber},{data.Label3.DataType.ToString()},{data.Label3.SubpackageType.ToString()},{data.Bodies.ToHexString()}");
}
}
}
catch (Exception ex)
{
Logger.LogError(ex, $"{data.SIM},{data.SN},{data.LogicChannelNumber},{data.Label3.DataType.ToString()},{data.Label3.SubpackageType.ToString()},{data.Bodies.ToHexString()}");
}
}
await Task.CompletedTask;
}
