예제 #1
0
 /// <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);
     }
 }
예제 #2
0
        /// <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);
            }
        }
예제 #3
0
        /// <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);
            }
        }
예제 #4
0
        /// <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);
            }
        }