/// <summary>
/// Create a bit stream from a given byte array
/// </summary>
/// <param name="input">The given byte array.</param>
/// <returns>A bit stream created from the given byte array.</returns>
public static BitStream GetFromBytes(byte[] input)
{
BitStream bitStream = new BitStream();
if (input == null) return bitStream;
foreach(byte b in input)
{
bitStream.WriteBits(8, b);
}
return bitStream;
}
//SRLEncode
public static EncodedTile SRLEncode(RfxProgressiveCodecContext encodingContext, Rdpegfx.RFX_PROGRESSIVE_CODEC_QUANT progQuant)
{
SRLEncoder encoder = new SRLEncoder();
List<short> yDataToSrl = new List<short>();
List<short> cbDataToSrl = new List<short>();
List<short> crDataToSrl = new List<short>();
List<int> yDataToSrlBitLen = new List<int>();
List<int> cbDataToSrlBitLen = new List<int>();
List<int> crDataToSrlBitLen = new List<int>();
BitStream yRawBitStream = new BitStream();
BitStream cbRawBitStream = new BitStream();
BitStream crRawBitStream = new BitStream();
int nonLL3Len = RdpegfxTileUtils.ComponentElementCount - RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, encodingContext.UseReduceExtrapolate);
Rdpegfx.RFX_PROGRESSIVE_CODEC_QUANT prevProgQuant = encodingContext.prevProgQuant;
Rdpegfx.RFX_PROGRESSIVE_CODEC_QUANT curProgQuant = progQuant;
for (int i = 0; i < RdpegfxTileUtils.ComponentElementCount; i++)
{
BandType_Values band = RdpegfxTileUtils.GetBandByIndex(i, encodingContext.UseReduceExtrapolate);
int targetBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.yQuantValues, band);
int prevBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prevProgQuant.yQuantValues, band);
int bitCount = prevBitPos - targetBitPos;
if (bitCount > 0)
{
if (encodingContext.DAS.Y_DwtQ[i] == 0 && i < nonLL3Len)
{
yDataToSrl.Add(encodingContext.ProgQ.Y_DwtQ[i]);
yDataToSrlBitLen.Add(bitCount);
}
else
{
//Add raw data
yRawBitStream.WriteBits(bitCount, Math.Abs(encodingContext.ProgQ.Y_DwtQ[i]));
}
}
targetBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.cbQuantValues, band);
prevBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prevProgQuant.cbQuantValues, band);
bitCount = prevBitPos - targetBitPos;
if (bitCount > 0)
{
if (encodingContext.DAS.Cb_DwtQ[i] == 0 && i < nonLL3Len)
{
cbDataToSrl.Add(encodingContext.ProgQ.Cb_DwtQ[i]);
cbDataToSrlBitLen.Add(bitCount);
}
else
{
//Add raw data
cbRawBitStream.WriteBits(bitCount, Math.Abs(encodingContext.ProgQ.Cb_DwtQ[i]));
}
}
targetBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.crQuantValues, band);
prevBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.crQuantValues, band);
bitCount = prevBitPos - targetBitPos;
if (bitCount > 0)
{
if (encodingContext.DAS.Cr_DwtQ[i] == 0 && i < nonLL3Len)
{
crDataToSrl.Add(encodingContext.ProgQ.Cr_DwtQ[i]);
crDataToSrlBitLen.Add(bitCount);
}
else
{
//Add raw data
crRawBitStream.WriteBits(bitCount, Math.Abs(encodingContext.ProgQ.Cr_DwtQ[i]));
}
}
}
encodingContext.YData = encoder.Encode(yDataToSrl.ToArray(), yDataToSrlBitLen.ToArray());
encodingContext.CbData = encoder.Encode(cbDataToSrl.ToArray(), cbDataToSrlBitLen.ToArray());
encodingContext.CrData = encoder.Encode(crDataToSrl.ToArray(), crDataToSrlBitLen.ToArray());
EncodedTile ugTile = new EncodedTile();
ugTile.YEncodedData = (byte[])encodingContext.YData.Clone();
ugTile.CbEncodedData = (byte[])encodingContext.CbData.Clone();
ugTile.CrEncodedData = (byte[])encodingContext.CrData.Clone();
ugTile.YRawData = yRawBitStream.ToBytes();
ugTile.CbRawData = cbRawBitStream.ToBytes();
ugTile.CrRawData = crRawBitStream.ToBytes();
ugTile.DataType = EncodedTileType.UpgradePass;
ugTile.IsDifferenceTile = encodingContext.UseDifferenceTile;
ugTile.UseReduceExtrapolate = encodingContext.UseReduceExtrapolate;
ugTile.CodecQuantVals = encodingContext.CodecQuantVals;
ugTile.QuantIdxY = encodingContext.QuantIdxY;
ugTile.QuantIdxCb = encodingContext.QuantIdxCb;
ugTile.QuantIdxCr = encodingContext.QuantIdxCr;
ugTile.ProgCodecQuant = curProgQuant;
return ugTile;
}
//SRLEncode
public static EncodedTile SRLEncode(RfxProgressiveCodecContext encodingContext, Rdpegfx.RFX_PROGRESSIVE_CODEC_QUANT progQuant)
{
SRLEncoder encoder = new SRLEncoder();
List <short> yDataToSrl = new List <short>();
List <short> cbDataToSrl = new List <short>();
List <short> crDataToSrl = new List <short>();
List <int> yDataToSrlBitLen = new List <int>();
List <int> cbDataToSrlBitLen = new List <int>();
List <int> crDataToSrlBitLen = new List <int>();
BitStream yRawBitStream = new BitStream();
BitStream cbRawBitStream = new BitStream();
BitStream crRawBitStream = new BitStream();
int nonLL3Len = RdpegfxTileUtils.ComponentElementCount - RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, encodingContext.UseReduceExtrapolate);
Rdpegfx.RFX_PROGRESSIVE_CODEC_QUANT prevProgQuant = encodingContext.prevProgQuant;
Rdpegfx.RFX_PROGRESSIVE_CODEC_QUANT curProgQuant = progQuant;
for (int i = 0; i < RdpegfxTileUtils.ComponentElementCount; i++)
{
BandType_Values band = RdpegfxTileUtils.GetBandByIndex(i, encodingContext.UseReduceExtrapolate);
int targetBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.yQuantValues, band);
int prevBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prevProgQuant.yQuantValues, band);
int bitCount = prevBitPos - targetBitPos;
if (bitCount > 0)
{
if (encodingContext.DAS.Y_DwtQ[i] == 0 && i < nonLL3Len)
{
yDataToSrl.Add(encodingContext.ProgQ.Y_DwtQ[i]);
yDataToSrlBitLen.Add(bitCount);
}
else
{
//Add raw data
yRawBitStream.WriteBits(bitCount, Math.Abs(encodingContext.ProgQ.Y_DwtQ[i]));
}
}
targetBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.cbQuantValues, band);
prevBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prevProgQuant.cbQuantValues, band);
bitCount = prevBitPos - targetBitPos;
if (bitCount > 0)
{
if (encodingContext.DAS.Cb_DwtQ[i] == 0 && i < nonLL3Len)
{
cbDataToSrl.Add(encodingContext.ProgQ.Cb_DwtQ[i]);
cbDataToSrlBitLen.Add(bitCount);
}
else
{
//Add raw data
cbRawBitStream.WriteBits(bitCount, Math.Abs(encodingContext.ProgQ.Cb_DwtQ[i]));
}
}
targetBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.crQuantValues, band);
prevBitPos = RdpegfxTileUtils.GetBitPosFromQuant(curProgQuant.crQuantValues, band);
bitCount = prevBitPos - targetBitPos;
if (bitCount > 0)
{
if (encodingContext.DAS.Cr_DwtQ[i] == 0 && i < nonLL3Len)
{
crDataToSrl.Add(encodingContext.ProgQ.Cr_DwtQ[i]);
crDataToSrlBitLen.Add(bitCount);
}
else
{
//Add raw data
crRawBitStream.WriteBits(bitCount, Math.Abs(encodingContext.ProgQ.Cr_DwtQ[i]));
}
}
}
encodingContext.YData = encoder.Encode(yDataToSrl.ToArray(), yDataToSrlBitLen.ToArray());
encodingContext.CbData = encoder.Encode(cbDataToSrl.ToArray(), cbDataToSrlBitLen.ToArray());
encodingContext.CrData = encoder.Encode(crDataToSrl.ToArray(), crDataToSrlBitLen.ToArray());
EncodedTile ugTile = new EncodedTile();
ugTile.YEncodedData = (byte[])encodingContext.YData.Clone();
ugTile.CbEncodedData = (byte[])encodingContext.CbData.Clone();
ugTile.CrEncodedData = (byte[])encodingContext.CrData.Clone();
ugTile.YRawData = yRawBitStream.ToBytes();
ugTile.CbRawData = cbRawBitStream.ToBytes();
ugTile.CrRawData = crRawBitStream.ToBytes();
ugTile.DataType = EncodedTileType.UpgradePass;
ugTile.IsDifferenceTile = encodingContext.UseDifferenceTile;
ugTile.UseReduceExtrapolate = encodingContext.UseReduceExtrapolate;
ugTile.CodecQuantVals = encodingContext.CodecQuantVals;
ugTile.QuantIdxY = encodingContext.QuantIdxY;
ugTile.QuantIdxCb = encodingContext.QuantIdxCb;
ugTile.QuantIdxCr = encodingContext.QuantIdxCr;
ugTile.ProgCodecQuant = curProgQuant;
return(ugTile);
}
