public override void Read(BitReader bitReader)
        {
            base.Read(bitReader);

            Profile                = bitReader.ReadByte();
            Constraints            = bitReader.ReadByte();
            Level                  = bitReader.ReadByte();
            gSPSID                 = bitReader.DecodeUnsignedExpGolomb();
            gLog2MaxFrameNumMinus4 = bitReader.DecodeUnsignedExpGolomb();
            gPicOrderCntType       = bitReader.DecodeUnsignedExpGolomb();
            if (gPicOrderCntType == 0)
            {
                gMaxPicOrderCntLsbMinus4 = bitReader.DecodeUnsignedExpGolomb();
            }
            else if (gPicOrderCntType == 1)
            {
                DeltaPicOrderAlwaysZero         = bitReader.GetNextBit();
                gOffsetForNonRefPic             = bitReader.DecodeSignedExpGolomb();
                gOffsetForTopToBottomField      = bitReader.DecodeSignedExpGolomb();
                gNumRefFramesInPicOrderCntCycle = bitReader.DecodeUnsignedExpGolomb();
                gOffsetsForRefFrames            = new int[gNumRefFramesInPicOrderCntCycle];
                for (int i = 0; i < gNumRefFramesInPicOrderCntCycle; i++)
                {
                    gOffsetsForRefFrames[i] = bitReader.DecodeSignedExpGolomb();
                }
            }
            gNumRefFrames = bitReader.DecodeUnsignedExpGolomb();
            GapsInFrameNumValueAllowed = bitReader.GetNextBit();
            gPicWidthInMBsMinus1       = bitReader.DecodeUnsignedExpGolomb();
            Width = gPicWidthInMBsMinus1 + 1;
            gPicHeightInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
            Height       = gPicHeightInMBsMinus1 + 1;
            PicSizeInMBs = Height * Width;
            FrameMBSOnly = bitReader.GetNextBit();
            uint interlaceFactor = (FrameMBSOnly) ? 1U : 2U;

            Width  *= 16;
            Height *= (16 * interlaceFactor);
            if (!FrameMBSOnly)
            {
                MBAdaptiveFrameField = bitReader.GetNextBit();
            }
            Direct8x8Inference = bitReader.GetNextBit();
            FrameCropping      = bitReader.GetNextBit();
            if (FrameCropping)
            {
                FrameCropLeftOffset   = bitReader.DecodeUnsignedExpGolomb();
                FrameCropRightOffset  = bitReader.DecodeUnsignedExpGolomb();
                FrameCropTopOffset    = bitReader.DecodeUnsignedExpGolomb();
                FrameCropBottomOffset = bitReader.DecodeUnsignedExpGolomb();
            }
            VUIParametersPresent = bitReader.GetNextBit();
            if (VUIParametersPresent)
            {
                vuiParams = new VUIParams();
                vuiParams.Read(bitReader);
            }
        }
        public override void Read(BitReader bitReader)
        {
            base.Read(bitReader);

              Profile = bitReader.ReadByte();
              Constraints = bitReader.ReadByte();
              Level = bitReader.ReadByte();
              gSPSID = bitReader.DecodeUnsignedExpGolomb();
              gLog2MaxFrameNumMinus4 = bitReader.DecodeUnsignedExpGolomb();
              gPicOrderCntType = bitReader.DecodeUnsignedExpGolomb();
              if (gPicOrderCntType == 0)
            gMaxPicOrderCntLsbMinus4 = bitReader.DecodeUnsignedExpGolomb();
              else if (gPicOrderCntType == 1)
              {
            DeltaPicOrderAlwaysZero = bitReader.GetNextBit();
            gOffsetForNonRefPic = bitReader.DecodeSignedExpGolomb();
            gOffsetForTopToBottomField = bitReader.DecodeSignedExpGolomb();
            gNumRefFramesInPicOrderCntCycle = bitReader.DecodeUnsignedExpGolomb();
            gOffsetsForRefFrames = new int[gNumRefFramesInPicOrderCntCycle];
            for (int i = 0; i < gNumRefFramesInPicOrderCntCycle; i++)
              gOffsetsForRefFrames[i] = bitReader.DecodeSignedExpGolomb();
              }
              gNumRefFrames = bitReader.DecodeUnsignedExpGolomb();
              GapsInFrameNumValueAllowed = bitReader.GetNextBit();
              gPicWidthInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
              Width = gPicWidthInMBsMinus1 + 1;
              gPicHeightInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
              Height = gPicHeightInMBsMinus1 + 1;
              PicSizeInMBs = Height * Width;
              FrameMBSOnly = bitReader.GetNextBit();
              uint interlaceFactor = (FrameMBSOnly) ? 1U : 2U;
              Width *= 16;
              Height *= (16 * interlaceFactor);
              if (!FrameMBSOnly)
            MBAdaptiveFrameField = bitReader.GetNextBit();
              Direct8x8Inference = bitReader.GetNextBit();
              FrameCropping = bitReader.GetNextBit();
              if (FrameCropping)
              {
            FrameCropLeftOffset = bitReader.DecodeUnsignedExpGolomb();
            FrameCropRightOffset = bitReader.DecodeUnsignedExpGolomb();
            FrameCropTopOffset = bitReader.DecodeUnsignedExpGolomb();
            FrameCropBottomOffset = bitReader.DecodeUnsignedExpGolomb();
              }
              VUIParametersPresent = bitReader.GetNextBit();
              if (VUIParametersPresent)
              {
            vuiParams = new VUIParams();
            vuiParams.Read(bitReader);
              }
        }
 public override void Read(BitReader bitReader)
 {
     base.Read(bitReader);
       PrimaryPicType = (PictureType)bitReader.GetByteFromNBits(3);
       bitReader.DiscardTrailingBits(); // complete the byte
       while (MoreRBSPData(bitReader))
     bitReader.ReadByte();
 }
Exemple #4
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 public override void Read(BitReader bitReader)
 {
     base.Read(bitReader);
     PrimaryPicType = (PictureType)bitReader.GetByteFromNBits(3);
     bitReader.DiscardTrailingBits(); // complete the byte
     while (MoreRBSPData(bitReader))
     {
         bitReader.ReadByte();
     }
 }
Exemple #5
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        private void SEIMessage(BitReader bitReader)
        {
            byte lastTypeByte;

            PayloadType = 0;
            while (0xFF == (lastTypeByte = bitReader.ReadByte()))
            {
                PayloadType += 255;
            }
            PayloadType += lastTypeByte;

            byte lastSizeByte;

            PayloadSize = 0;
            while (0xFF == (lastSizeByte = bitReader.ReadByte()))
            {
                PayloadSize += 255;
            }
            PayloadSize += lastSizeByte;

            SEIPayload();
        }
Exemple #6
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        // start reading at a byte boundary
        public virtual void Read(BitReader bitReader)
        {
            _positionInStream = bitReader.Position;
            Byte firstByte = bitReader.ReadByte();
            Byte idc       = (Byte)(firstByte >> 5);

            if ((idc > 0) != (NALRefIDC > 0)) // if it's not as expected, then throw exception
            {
                throw new Exception("NALU base class: unexpected Ref IDC");
            }
            NALUnitType naluType = (NALUnitType)(firstByte & 0x1F);

            if (naluType != NALUType)
            {
                throw new Exception("NALU base class: unexpected NALU type");
            }
        }
 // start reading at a byte boundary
 public virtual void Read(BitReader bitReader)
 {
     _positionInStream = bitReader.Position;
       Byte firstByte = bitReader.ReadByte();
       Byte idc = (Byte)(firstByte >> 5);
       if ((idc > 0) != (NALRefIDC > 0)) // if it's not as expected, then throw exception
     throw new Exception("NALU base class: unexpected Ref IDC");
       NALUnitType naluType = (NALUnitType)(firstByte & 0x1F);
       if (naluType != NALUType)
     throw new Exception("NALU base class: unexpected NALU type");
 }
        private void SEIMessage(BitReader bitReader)
        {
            byte lastTypeByte;
              PayloadType = 0;
              while (0xFF == (lastTypeByte = bitReader.ReadByte()))
            PayloadType += 255;
              PayloadType += lastTypeByte;

              byte lastSizeByte;
              PayloadSize = 0;
              while (0xFF == (lastSizeByte = bitReader.ReadByte()))
            PayloadSize += 255;
              PayloadSize += lastSizeByte;

              SEIPayload();
        }