/// <summary>
///
/// </summary>
/// <param name="writer"></param>
public void ToBuffer(ref FMp4MessagePackWriter writer)
{
if (MovieFragmentBox != null)
{
MovieFragmentBox.ToBuffer(ref writer);
}
if (MediaDataBox != null)
{
MediaDataBox.ToBuffer(ref writer);
}
}
/// <summary>
/// 编码其他视频数据盒子
/// </summary>
/// <param name="package">jt1078完整包</param>
/// <param name="moofOffset">moof位置</param>
/// <returns></returns>
public byte[] EncoderOtherVideoBox(JT1078Package package, ulong moofOffset = 0)
{
byte[] buffer = FMp4ArrayPool.Rent(package.Bodies.Length + 4096);
FMp4MessagePackWriter writer = new FMp4MessagePackWriter(buffer);
try
{
var nalus = h264Decoder.ParseNALU(package);
var movieFragmentBox = new MovieFragmentBox();
movieFragmentBox.MovieFragmentHeaderBox = new MovieFragmentHeaderBox();
movieFragmentBox.MovieFragmentHeaderBox.SequenceNumber = sn++;
movieFragmentBox.TrackFragmentBox = new TrackFragmentBox();
//0x39 写文件
//0x02 分段
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox = new TrackFragmentHeaderBox(2);
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.TrackID = 1;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.BaseDataOffset = moofOffset;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleDuration = 48000;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleSize = (uint)package.Bodies.Length;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleFlags = 0x1010000;
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox = new TrackFragmentBaseMediaDecodeTimeBox();
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox.BaseMediaDecodeTime = package.Timestamp * 1000;
//trun
//0x39 写文件
//0x02 分段
uint flag = package.Label3.DataType == JT1078DataType.视频I帧 ? 1u : 0u;
movieFragmentBox.TrackFragmentBox.TrackRunBox = new TrackRunBox(flags: 0x000400);
movieFragmentBox.TrackFragmentBox.TrackRunBox.FirstSampleFlags = 0;
movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos = new List <TrackRunBox.TrackRunInfo>();
//movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos.Add(new TrackRunBox.TrackRunInfo());
foreach (var nalu in nalus)
{
movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos.Add(new TrackRunBox.TrackRunInfo()
{
SampleSize = (uint)nalu.RawData.Length,
SampleCompositionTimeOffset = package.Label3.DataType == JT1078DataType.视频I帧 ? package.LastIFrameInterval : package.LastFrameInterval,
SampleFlags = flag
});
}
movieFragmentBox.ToBuffer(ref writer);
var mediaDataBox = new MediaDataBox();
mediaDataBox.Data = nalus.Select(s => s.RawData).ToList();
mediaDataBox.ToBuffer(ref writer);
var data = writer.FlushAndGetArray();
return(data);
}
finally
{
FMp4ArrayPool.Return(buffer);
}
}
/// <summary>
/// 编码其他视频数据盒子
/// </summary>
/// <param name="package">jt1078完整包</param>
/// <param name="moofOffset">moof位置</param>
/// <returns></returns>
public byte[] EncoderOtherVideoBox(JT1078Package package, ulong moofOffset = 0)
{
byte[] buffer = FMp4ArrayPool.Rent(package.Bodies.Length + 4096);
FMp4MessagePackWriter writer = new FMp4MessagePackWriter(buffer);
try
{
var nalus = h264Decoder.ParseNALU(package);
var movieFragmentBox = new MovieFragmentBox();
movieFragmentBox.MovieFragmentHeaderBox = new MovieFragmentHeaderBox();
movieFragmentBox.MovieFragmentHeaderBox.SequenceNumber = package.SN;
movieFragmentBox.TrackFragmentBox = new TrackFragmentBox();
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox = new TrackFragmentHeaderBox(0x39);
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.TrackID = 1;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.BaseDataOffset = moofOffset;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleDuration = 48000;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleSize = (uint)package.Bodies.Length;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleFlags = 0x1010000;
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox = new TrackFragmentBaseMediaDecodeTimeBox();
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox.BaseMediaDecodeTime = package.Timestamp * 1000;
//trun
movieFragmentBox.TrackFragmentBox.TrackRunBox = new TrackRunBox(flags: 0x5);
movieFragmentBox.TrackFragmentBox.TrackRunBox.FirstSampleFlags = 0;
movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos = new List <TrackRunBox.TrackRunInfo>();
movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos.Add(new TrackRunBox.TrackRunInfo());
movieFragmentBox.ToBuffer(ref writer);
var mediaDataBox = new MediaDataBox();
mediaDataBox.Data = nalus.Select(s => s.RawData).ToList();
mediaDataBox.ToBuffer(ref writer);
var data = writer.FlushAndGetArray();
return(data);
}
finally
{
FMp4ArrayPool.Return(buffer);
}
}
/// <summary>
/// 编码Moof盒子
/// </summary>
/// <returns></returns>
public byte[] EncoderMoofBox(List <H264NALU> nalus, int naluLength, ulong timestamp, uint frameInterval, uint keyframeFlag, int moofOffset = 0)
{
byte[] buffer = FMp4ArrayPool.Rent(naluLength + 4096);
FMp4MessagePackWriter writer = new FMp4MessagePackWriter(buffer);
try
{
var movieFragmentBox = new MovieFragmentBox();
movieFragmentBox.MovieFragmentHeaderBox = new MovieFragmentHeaderBox();
movieFragmentBox.MovieFragmentHeaderBox.SequenceNumber = sn++;
movieFragmentBox.TrackFragmentBox = new TrackFragmentBox();
//0x39 写文件
//0x02 分段
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox = new TrackFragmentHeaderBox(0x20038);
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.TrackID = 1;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleDuration = 48000;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleSize = (uint)naluLength;
movieFragmentBox.TrackFragmentBox.TrackFragmentHeaderBox.DefaultSampleFlags = 0x1010000;
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox = new TrackFragmentBaseMediaDecodeTimeBox();
//movieFragmentBox.TrackFragmentBox.SampleDependencyTypeBox = new SampleDependencyTypeBox()
//{
// SampleDependencyTypes = new List<SampleDependencyTypeBox.SampleDependencyType>()
//};
//trun
//0x39 写文件
//0x02 分段
//uint flag = 0x000200 | 0x000800 | 0x000400 | 0x000100;
uint flag = 4u;
//var sdtp = new SampleDependencyTypeBox.SampleDependencyType();
//if (keyframeFlag==1)
//{
// sdtp.SampleDependsOn = 2;
// sdtp.SampleIsDependedOn = 1;
//}
//else
//{
// sdtp.SampleDependsOn = 1;
// sdtp.SampleIsDependedOn = 0;
//}
if (!first)
{
//sdtp.IsLeading = 1;
//flag = 4u;
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox.BaseMediaDecodeTime = 0;
movieFragmentBox.TrackFragmentBox.TrackRunBox = new TrackRunBox(flags: 0x205);
first = true;
}
else
{
//flag = 0x000400;
movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox.BaseMediaDecodeTime = BaseMediaDecodeTime;
movieFragmentBox.TrackFragmentBox.TrackRunBox = new TrackRunBox(flags: 0x205);
BaseMediaDecodeTime += BaseMediaDecodeTime;
}
//movieFragmentBox.TrackFragmentBox.SampleDependencyTypeBox.SampleDependencyTypes.Add(sdtp);
movieFragmentBox.TrackFragmentBox.TrackRunBox.FirstSampleFlags = 33554432;
movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos = new List <TrackRunBox.TrackRunInfo>();
//movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos.Add(new TrackRunBox.TrackRunInfo());
movieFragmentBox.TrackFragmentBox.TrackRunBox.TrackRunInfos.Add(new TrackRunBox.TrackRunInfo()
{
SampleDuration = frameInterval,
SampleSize = (uint)naluLength,
SampleCompositionTimeOffset = frameInterval,
SampleFlags = flag
});
movieFragmentBox.ToBuffer(ref writer);
var data = writer.FlushAndGetArray();
return(data);
}
finally
{
FMp4ArrayPool.Return(buffer);
}
}