Exemplo n.º 1
0
        protected void RtpPacketReceived(object sender, RtpListener.RtpPacketReceivedArgs e)
        {
            if ((e.Packet.HasPayload) && (e.Packet.PayloadType == 33))
            {
                if (((e.Packet.Payload.Length - 12) % 188) == 0)
                {
                    double num9 = (((double)(e.Packet.Payload.Length - 12)) / 188.0) - 1.0;
                    for (double j = 0.0; j <= num9; j++)
                    {
                        byte[] tspacketbytes = (byte[])Array.CreateInstance(typeof(byte), 188);
                        Array.Copy(e.Packet.Payload, (int)Math.Round((double)(12.0 + (j * 188))), tspacketbytes, 0, 188);
                        TsHeader header = TsHeader.Decode(tspacketbytes);
                        if (header.Pid == 0)
                        {
                        }

                        //pat.OnTsPacket(destinationarray);
                        //if (pat.IsReady)
                        //{
                        //    retval = true;
                        //}
                    }
                }
                OnTsPacketRecieved(new TsPacketArgs(e.Packet.Payload));
            }
        }
Exemplo n.º 2
0
        public static TsHeader Decode(byte[] buffer)
        {
            var header = new TsHeader();

            header.SyncByte = buffer[0];
            if (header.SyncByte != 0x47)
            {
                header.TransportErrorIndicator = true;
            }
            header.TransportErrorIndicator = ((buffer[1] & 0x80) == 0x80);
            if (!header.TransportErrorIndicator)
            {
                header.PayloadUnitStartIndicator = ((buffer[1] & 0x40) == 0x40);
                header.TransportPriority         = ((buffer[1] & 0x20) == 0x20);
                header.Pid = (((buffer[1] & 0x1F) << 8) + buffer[2]);
                header.TransportScramblingControl = (byte)(buffer[3] & 0xC0);
                header.AdaptionFieldControl       = (byte)((buffer[3] >> 4) & 0x3);
                header.HasAdaptionField           = (buffer[3] & 0x20) == 0x20;
                header.HasPayload          = (buffer[3] & 0x10) == 0x10;
                header.ContinuityCounter   = (byte)(buffer[3] & 0x0F);
                header.AdaptionFieldLength = 0;
                header.PayLoadStart        = 4;
                if (header.HasAdaptionField)
                {
                    header.AdaptionFieldLength = buffer[4];
                    header.PayLoadStart        = (byte)(5 + header.AdaptionFieldLength);
                }
                return(header);
            }
            return(null);
        }
Exemplo n.º 3
0
        public virtual void OnTsPacket(byte[] tsPacket)
        {
            TsHeader header = TsHeader.Decode(tsPacket);

            if (((_pid < 0x1fff) && (header.Pid == _pid)) && header.HasPayload)
            {
                int payLoadStart = header.PayLoadStart;
                int num2         = 0;
                if (header.PayloadUnitStartIndicator)
                {
                    num2 = (payLoadStart + tsPacket[payLoadStart]) + 1;
                    if (_section.BufferPos == 0)
                    {
                        payLoadStart += tsPacket[payLoadStart] + 1;
                    }
                    else
                    {
                        payLoadStart++;
                    }
                }
                while (payLoadStart < 0xbc)
                {
                    if (_section.BufferPos == 0)
                    {
                        if (!header.PayloadUnitStartIndicator)
                        {
                            return;
                        }
                        if (tsPacket[payLoadStart] == 0xff)
                        {
                            return;
                        }
                        int sectionLen = this.SnapshotSectionLength(tsPacket, payLoadStart);
                        payLoadStart = this.StartNewTsSection(tsPacket, payLoadStart, sectionLen);
                    }
                    else
                    {
                        if (_section.section_length == -1)
                        {
                            _section.CalcSectionLength(tsPacket, payLoadStart);
                        }
                        if (_section.section_length == 0)
                        {
                            _section.Reset();
                            return;
                        }
                        int num4 = _section.section_length - _section.BufferPos;
                        if ((num2 != 0) && ((payLoadStart + num4) > num2))
                        {
                            num4                    = num2 - payLoadStart;
                            payLoadStart            = this.AddToSection(tsPacket, payLoadStart, num4);
                            _section.section_length = _section.BufferPos - 1;
                            payLoadStart            = num2;
                            incompleteSections++;
                        }
                        else
                        {
                            payLoadStart = this.AddToSection(tsPacket, payLoadStart, num4);
                        }
                    }
                    if (_section.SectionComplete() && (_section.section_length > 0))
                    {
                        this.OnNewSection(_section);
                        if (this.OnSectionDecoded != null)
                        {
                            this.OnSectionDecoded(_section);
                        }
                        _section.Reset();
                    }
                    num2 = 0;
                }
            }
        }
Exemplo n.º 4
0
        public virtual void OnTsPacket(byte[] tsPacket)
        {
            TsHeader header = TsHeader.Decode(tsPacket);

            if (m_pid >= 0x1fff)
            {
                return;
            }
            if (header.Pid != m_pid)
            {
                return;
            }
            if (!header.HasPayload)
            {
                return;
            }

            int start = header.PayLoadStart;

            int pointer_field = 0;

            if (header.PayloadUnitStartIndicator)
            {
                pointer_field = start + tsPacket[start] + 1;
                if (m_section.BufferPos == 0)
                {
                    start += tsPacket[start] + 1;
                }
                else
                {
                    start++;
                }
            }
            while (start < 188)
            {
                if (m_section.BufferPos == 0)
                {
                    if (!header.PayloadUnitStartIndicator)
                    {
                        return;
                    }
                    if (tsPacket[start] == 0xFF)
                    {
                        return;
                    }
                    int section_length = SnapshotSectionLength(tsPacket, start);
                    start = StartNewSection(tsPacket, start, section_length);
                }
                else
                {
                    if (m_section.section_length == -1)
                    {
                        m_section.CalcSectionLength(tsPacket, start);
                    }
                    if (m_section.section_length == 0)
                    {
                        m_section.Reset();
                        return;
                    }
                    int len = m_section.section_length - m_section.BufferPos;
                    if (pointer_field != 0 && ((start + len) > pointer_field))
                    {
                        len   = pointer_field - start;
                        start = AddToSection(tsPacket, start, len);
                        m_section.section_length = m_section.BufferPos - 1;
                        start = pointer_field;
                        incompleteSections++;
                    }
                    else
                    {
                        start = AddToSection(tsPacket, start, len);
                    }
                }
                if (m_section.SectionComplete() && m_section.section_length > 0)
                {
                    OnNewSection(m_section);
                    if (OnSectionDecoded != null)
                    {
                        OnSectionDecoded(m_section);
                    }
                    m_section.Reset();
                }
                pointer_field = 0;
            }
        }