//Compute the difference tile dwt public static void SubBandDiffing_DT(RfxProgressiveCodecContext encodingContext, TileState enTileInfo) { if (encodingContext.UseDifferenceTile) { DwtTile oldDwt = enTileInfo.GetOldDwt(); if (oldDwt != null) { short[] yDiffDwt, cbDiffDwt, crDiffDwt; int lenOfNonLL3Band = (RdpegfxTileUtils.ComponentElementCount - RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, encodingContext.UseReduceExtrapolate));// ? 81 : 64; int yNewZeroCount, cbNewZeroCount, crNewZeroCount; int yDiffZeroCount, cbDiffZeroCount, crDiffZeroCount; yDiffDwt = RdpegfxTileUtils.SubDiffingDwt(encodingContext.YComponent, oldDwt.Y_DwtQ, lenOfNonLL3Band, out yNewZeroCount, out yDiffZeroCount); cbDiffDwt = RdpegfxTileUtils.SubDiffingDwt(encodingContext.CbComponent, oldDwt.Cb_DwtQ, lenOfNonLL3Band, out cbNewZeroCount, out cbDiffZeroCount); crDiffDwt = RdpegfxTileUtils.SubDiffingDwt(encodingContext.CrComponent, oldDwt.Cr_DwtQ, lenOfNonLL3Band, out crNewZeroCount, out crDiffZeroCount); if ((yDiffDwt != null && cbDiffDwt != null && crDiffDwt != null) && (yNewZeroCount + cbNewZeroCount + crNewZeroCount < yDiffZeroCount + cbDiffZeroCount + crDiffZeroCount)) {//use difference tile encodingContext.YComponent = yDiffDwt; encodingContext.CbComponent = cbDiffDwt; encodingContext.CrComponent = crDiffDwt; return; } } } encodingContext.UseDifferenceTile = false;//use orginal tile }
/// <summary> /// Create an instance from the given DWT data /// </summary> /// <param name="data">The linearization DWT data</param> /// <param name="useReduceExtrapolate">Indicates if Reduce-Extrapolate method used in DWT</param> /// <returns>A DWTBands instance</returns> public static DwtBands GetFromLinearizationResult(short[] data, bool useReduceExtrapolate) { int curIdx = 0; DwtBands bDwt = new DwtBands(); bDwt.HL1 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.HL1, useReduceExtrapolate)]; bDwt.LH1 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.LH1, useReduceExtrapolate)]; bDwt.HH1 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.HH1, useReduceExtrapolate)]; bDwt.HL2 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.HL2, useReduceExtrapolate)]; bDwt.LH2 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.LH2, useReduceExtrapolate)]; bDwt.HH2 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.HH2, useReduceExtrapolate)]; bDwt.HL3 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.HL3, useReduceExtrapolate)]; bDwt.LH3 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.LH3, useReduceExtrapolate)]; bDwt.HH3 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.HH3, useReduceExtrapolate)]; bDwt.LL3 = new short[RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, useReduceExtrapolate)]; Array.Copy(data, curIdx, bDwt.HL1, 0, bDwt.HL1.Length); curIdx += bDwt.HL1.Length; Array.Copy(data, curIdx, bDwt.LH1, 0, bDwt.LH1.Length); curIdx += bDwt.LH1.Length; Array.Copy(data, curIdx, bDwt.HH1, 0, bDwt.HH1.Length); curIdx += bDwt.HH1.Length; Array.Copy(data, curIdx, bDwt.HL2, 0, bDwt.HL2.Length); curIdx += bDwt.HL2.Length; Array.Copy(data, curIdx, bDwt.LH2, 0, bDwt.LH2.Length); curIdx += bDwt.LH2.Length; Array.Copy(data, curIdx, bDwt.HH2, 0, bDwt.HH2.Length); curIdx += bDwt.HH2.Length; Array.Copy(data, curIdx, bDwt.HL3, 0, bDwt.HL3.Length); curIdx += bDwt.HL3.Length; Array.Copy(data, curIdx, bDwt.LH3, 0, bDwt.LH3.Length); curIdx += bDwt.LH3.Length; Array.Copy(data, curIdx, bDwt.HH3, 0, bDwt.HH3.Length); curIdx += bDwt.HH3.Length; Array.Copy(data, curIdx, bDwt.LL3, 0, bDwt.LL3.Length); curIdx += bDwt.LL3.Length; return(bDwt); }
static DwtTile SetTriState(DwtTile inputTile, bool useReduceExtrapolate) { int ll3Len = RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, useReduceExtrapolate); int ll3Idx = RdpegfxTileUtils.ComponentElementCount - ll3Len; DwtTile stateTile = new DwtTile( new short[RdpegfxTileUtils.ComponentElementCount], //y state new short[RdpegfxTileUtils.ComponentElementCount], //cb state new short[RdpegfxTileUtils.ComponentElementCount]); //cr state for (int i = 0; i < RdpegfxTileUtils.ComponentElementCount; i++) { if (i < ll3Idx) { stateTile.Y_DwtQ[i] = (short)Math.Sign(inputTile.Y_DwtQ[i]); stateTile.Cb_DwtQ[i] = (short)Math.Sign(inputTile.Cb_DwtQ[i]); stateTile.Cr_DwtQ[i] = (short)Math.Sign(inputTile.Cr_DwtQ[i]); } else { stateTile.Y_DwtQ[i] = 1; stateTile.Cb_DwtQ[i] = 1; stateTile.Cr_DwtQ[i] = 1; } } return(stateTile); }
protected static void dequantization_Component(short[,] compontent, TS_RFX_CODEC_QUANT tsRfxCodecQuant, bool useReduceExtrapolate) { // Quantization factor: HL1, LH1, HH1, HL2, LH2, HH2, HL3, LH3, HH3, LL3 Hashtable scaleValueTable = new Hashtable(); int HL1_Factor = tsRfxCodecQuant.HL1_HH1 & 0x0f; int LH1_Factor = (tsRfxCodecQuant.HH2_LH1 & 0xf0) >> 4; int HH1_Factor = (tsRfxCodecQuant.HL1_HH1 & 0xf0) >> 4; int HL2_Factor = (tsRfxCodecQuant.LH2_HL2 & 0xf0) >> 4; int LH2_Factor = tsRfxCodecQuant.LH2_HL2 & 0x0f; int HH2_Factor = tsRfxCodecQuant.HH2_LH1 & 0x0f; int HL3_Factor = tsRfxCodecQuant.HL3_HH3 & 0x0f; int LH3_Factor = (tsRfxCodecQuant.LL3_LH3 & 0xf0) >> 4; int HH3_Factor = (tsRfxCodecQuant.HL3_HH3 & 0xf0) >> 4; int LL3_Factor = tsRfxCodecQuant.LL3_LH3 & 0x0f; int[] HL_Factor = { HL1_Factor, HL2_Factor, HL3_Factor }; int[] LH_Factor = { LH1_Factor, LH2_Factor, LH3_Factor }; int[] HH_Factor = { HH1_Factor, HH2_Factor, HH3_Factor }; BandType_Values[] bandArr = new BandType_Values[] { BandType_Values.HL1, BandType_Values.LH1, BandType_Values.HH1, BandType_Values.HL2, BandType_Values.LH2, BandType_Values.HH2, BandType_Values.HL3, BandType_Values.LH3, BandType_Values.HH3, BandType_Values.LL3 }; int[] bandFactor = new int[] { HL1_Factor, LH1_Factor, HH1_Factor, HL2_Factor, LH2_Factor, HH2_Factor, HL3_Factor, LH3_Factor, HH3_Factor, LL3_Factor }; for (int i = 0; i < bandArr.Length; i++) { BandRect br = RdpegfxTileUtils.GetBandRect(bandArr[i], useReduceExtrapolate); doDequantization_Subband(compontent, br.left, br.top, br.right, br.bottom, bandFactor[i]); } }
/// <summary> /// Encode the surface with Progressive Codec /// </summary> /// <param name="quality">The target encoded quality.</param> /// <param name="bProg">Indicates if encode progressively</param> /// <param name="bSubDiff">Indicates if sub-diffing with last frame of this surface</param> /// <param name="bReduceExtrapolate">Indicates if use Reduce Extrapolate method in DWT step.</param> /// <returns>The dictionary of tile index and encoded tile datas.</returns> public Dictionary <TileIndex, EncodedTile[]> ProgressiveEncode(ImageQuality_Values quality, bool bProg, bool bSubDiff, bool bReduceExtrapolate, bool ignoreUnchangedTile = true) { Dictionary <TileIndex, EncodedTile[]> encodedTileDic = new Dictionary <TileIndex, EncodedTile[]>(); TS_RFX_CODEC_QUANT quant = RdpegfxTileUtils.GetCodecQuant(quality); TileIndex[] tileIndexArr; if (!ignoreUnchangedTile) { tileIndexArr = GetAllIndexes(); } else { tileIndexArr = GetDiffIndexes(true); } foreach (TileIndex index in tileIndexArr) { RfxProgressiveCodecContext codecContext = new RfxProgressiveCodecContext( new TS_RFX_CODEC_QUANT[] { quant }, 0, // quantization index of Y, set this paramter to 0 since only one quantization value in the array 0, // quantization index of Cb 0, // quantization index of Cr bProg, //progressive bSubDiff, //sub-diffing bReduceExtrapolate); //reduce extrapolate TileState tState = new TileState(this, index); encodedTileDic.Add(index, RfxProgressiveEncoder.EncodeTile(codecContext, tState)); } return(encodedTileDic); }
static void DTS_Band(short[] bandData, BandType_Values band, TileComponents component, RFX_PROGRESSIVE_CODEC_QUANT quants) { int bitPos = RdpegfxTileUtils.GetBitPosForQuant(quants, component, band); for (int i = 0; i < bandData.Length; i++) { bandData[i] = FunDTS(bandData[i], bitPos, band); } }
static void DTS_Band(short[] bandData, BandType_Values band, TileComponents component, ProgressiveChunk_Values chunk) { int bitPos = RdpegfxTileUtils.GetBitPosForChunk(chunk, component, band); for (int i = 0; i < bandData.Length; i++) { bandData[i] = FunDTS(bandData[i], bitPos, band); } }
protected static void ProgressiveDeQuantization_Component(short[] data, RFX_COMPONMENT_CODEC_QUANT quant, bool useReduceExtrapolate) { int bitPos = 0; for (int i = 0; i < RdpegfxTileUtils.ComponentElementCount; i++) { BandType_Values band = RdpegfxTileUtils.GetBandByIndex(i, useReduceExtrapolate); bitPos = RdpegfxTileUtils.GetBitPosFromQuant(quant, band); data[i] = FunProgDeQ(data[i], bitPos, band); } }
public static void ComputeOriginalLL3FromDeltas(RfxProgressiveCodecContext codecContext) { int ll3Len = RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, codecContext.UseReduceExtrapolate); int ll3Idx = RdpegfxTileUtils.ComponentElementCount - ll3Len; for (int i = ll3Idx + 1; i < RdpegfxTileUtils.ComponentElementCount; i++) { codecContext.YComponent[i] = (short)(codecContext.YComponent[i] + codecContext.YComponent[i - 1]); codecContext.CbComponent[i] = (short)(codecContext.CbComponent[i] + codecContext.CbComponent[i - 1]); codecContext.CrComponent[i] = (short)(codecContext.CrComponent[i] + codecContext.CrComponent[i - 1]); } }
public static void ComputeLL3Deltas(RfxProgressiveCodecContext encodingContext) { int ll3Len = RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, encodingContext.UseReduceExtrapolate); int ll3Idx = RdpegfxTileUtils.ComponentElementCount - ll3Len; //for (int i = ll3Idx + 1; i < TileUtils.ComponentElementCount; i++) for (int i = RdpegfxTileUtils.ComponentElementCount - 1; i >= ll3Idx + 1; i--) { encodingContext.YComponent[i] = (short)(encodingContext.YComponent[i] - encodingContext.YComponent[i - 1]); encodingContext.CbComponent[i] = (short)(encodingContext.CbComponent[i] - encodingContext.CbComponent[i - 1]); encodingContext.CrComponent[i] = (short)(encodingContext.CrComponent[i] - encodingContext.CrComponent[i - 1]); } }
/// <summary> /// Consturctor /// </summary> /// <param name="tsRfxCodecQuantVals">Codec quantity values array</param> /// <param name="quantIdxY">Index of Y component in quantity array</param> /// <param name="quantIdxCb">Index of Cb component in quantity array</param> /// <param name="quantIdxCr">Index of Cr component in quantity array</param> /// <param name="bProgressive">indicates if use progressive codec</param> /// <param name="bTileDiff">indicates if sub-diffing</param> /// <param name="bReduceExtrapolate">Indicates if use Reduce-Extrapolate method in DWT</param> public RfxProgressiveCodecContext( TS_RFX_CODEC_QUANT[] tsRfxCodecQuantVals, byte quantIdxY, byte quantIdxCb, byte quantIdxCr, bool bProgressive = false, bool bTileDiff = true, bool bReduceExtrapolate = true) : base(tsRfxCodecQuantVals, quantIdxY, quantIdxCb, quantIdxCr, EntropyAlgorithm.CLW_ENTROPY_RLGR1) { UseProgressive = bProgressive; UseDifferenceTile = bTileDiff; UseReduceExtrapolate = bReduceExtrapolate; prevProgQuant = RdpegfxTileUtils.GetProgCodecQuant(ProgressiveChunk_Values.kChunk_None); }
public static void reconstruction_Component(short[] component1D, out short[,] compontent2D, bool useReduceExtrapolate) { //sequence: HL1, LH1, HH1, HL2, LH2, HH2, HL3, LH3, HH3, and LL3 //lineOutput = new short[TileSize * TileSize]; compontent2D = new short[RdpegfxTileUtils.TileSize, RdpegfxTileUtils.TileSize]; BandType_Values[] bandArr = new BandType_Values[] { BandType_Values.HL1, BandType_Values.LH1, BandType_Values.HH1, BandType_Values.HL2, BandType_Values.LH2, BandType_Values.HH2, BandType_Values.HL3, BandType_Values.LH3, BandType_Values.HH3, BandType_Values.LL3 }; int offset = 0; BandRect curBand; for (int i = 0; i < bandArr.Length; i++) { curBand = RdpegfxTileUtils.GetBandRect(bandArr[i], useReduceExtrapolate); reconstruction_SubBand(compontent2D, curBand.left, curBand.top, curBand.right, curBand.bottom, component1D, ref offset); } }
protected static void linearization_Compontent(short[,] compontent, bool useReduceExtrapolate, out short[] lineOutput) { //sequence: HL1, LH1, HH1, HL2, LH2, HH2, HL3, LH3, HH3, and LL3 lineOutput = new short[TileSize * TileSize]; int curIdx = 0; BandType_Values[] bandArr = new BandType_Values[] { BandType_Values.HL1, BandType_Values.LH1, BandType_Values.HH1, BandType_Values.HL2, BandType_Values.LH2, BandType_Values.HH2, BandType_Values.HL3, BandType_Values.LH3, BandType_Values.HH3, BandType_Values.LL3 }; short[] bandOutput; BandRect curBand; for (int i = 0; i < bandArr.Length; i++) { curBand = RdpegfxTileUtils.GetBandRect(bandArr[i], useReduceExtrapolate); linearization_SubBand(compontent, curBand.left, curBand.top, curBand.right, curBand.bottom, out bandOutput); Array.Copy(bandOutput, 0, lineOutput, curIdx, bandOutput.Length); curIdx += bandOutput.Length; } }
//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); }
/// <summary> /// Encode a Tile /// </summary> /// <param name="encodingContext">The tile encoding context</param> /// <param name="enTileInfo">The tile to be encoded</param> /// <returns>A array of CompressedTile which contains the encoded tiles</returns> public static EncodedTile[] EncodeTile(RfxProgressiveCodecContext encodingContext, TileState enTileInfo) { EncodedTileType targetType = encodingContext.UseProgressive ? EncodedTileType.FirstPass : EncodedTileType.Simple; //File RGB FillRgbData(encodingContext, enTileInfo.GetRgb()); //Do color conversion RemoteFXEncoder.RGBToYCbCr(encodingContext); //Do DWT if (encodingContext.UseReduceExtrapolate) { //Do DWT using UseReduce Extrapolate method DWT(encodingContext); } else { RemoteFXEncoder.DWT(encodingContext); } //Do quantiztion Quantization(encodingContext); //Do linearization (LL3 delta not computed) Linearization_NoLL3Delta(encodingContext); //Update new DWT to tile DwtTile dwt = new DwtTile( (short[])encodingContext.YComponent.Clone(), (short[])encodingContext.CbComponent.Clone(), (short[])encodingContext.CrComponent.Clone(), encodingContext.CodecQuantVals, encodingContext.QuantIdxY, encodingContext.QuantIdxCb, encodingContext.QuantIdxCr, encodingContext.UseReduceExtrapolate ); enTileInfo.UpdateDwt(dwt); //Sub-Band Diffing if (encodingContext.UseDifferenceTile) { SubBandDiffing_DT(encodingContext, enTileInfo); } if (targetType == EncodedTileType.Simple) { ComputeLL3Deltas(encodingContext); RemoteFXEncoder.RLGREncode(encodingContext); EncodedTile cpTile = new EncodedTile(); cpTile.YEncodedData = (byte[])encodingContext.YData.Clone(); cpTile.CbEncodedData = (byte[])encodingContext.CbData.Clone(); cpTile.CrEncodedData = (byte[])encodingContext.CrData.Clone(); cpTile.DataType = EncodedTileType.Simple; cpTile.IsDifferenceTile = encodingContext.UseDifferenceTile; cpTile.UseReduceExtrapolate = encodingContext.UseReduceExtrapolate; cpTile.CodecQuantVals = encodingContext.CodecQuantVals; cpTile.QuantIdxY = encodingContext.QuantIdxY; cpTile.QuantIdxCb = encodingContext.QuantIdxCb; cpTile.QuantIdxCr = encodingContext.QuantIdxCr; cpTile.ProgCodecQuant = null; return(new EncodedTile[] { cpTile }); } else { List <EncodedTile> progCTileList = new List <EncodedTile>(); //Init DRS, DAS encodingContext.DRS = new DwtTile(encodingContext.YComponent, encodingContext.CbComponent, encodingContext.CrComponent); encodingContext.DAS = new DwtTile(new short[RdpegfxTileUtils.ComponentElementCount], new short[RdpegfxTileUtils.ComponentElementCount], new short[RdpegfxTileUtils.ComponentElementCount]); #region Chunk 25, first pass ProgressiveQuantization(encodingContext, ProgressiveChunk_Values.kChunk_25); //Compute ProgQ LL3 deltas encodingContext.YComponent = encodingContext.ProgQ.Y_DwtQ; encodingContext.CbComponent = encodingContext.ProgQ.Cb_DwtQ; encodingContext.CrComponent = encodingContext.ProgQ.Cr_DwtQ; ComputeLL3Deltas(encodingContext); RemoteFXEncoder.RLGREncode(encodingContext); EncodedTile firstPassTile = new EncodedTile(); firstPassTile.YEncodedData = (byte[])encodingContext.YData.Clone(); firstPassTile.CbEncodedData = (byte[])encodingContext.CbData.Clone(); firstPassTile.CrEncodedData = (byte[])encodingContext.CrData.Clone(); firstPassTile.DataType = EncodedTileType.FirstPass; firstPassTile.IsDifferenceTile = encodingContext.UseDifferenceTile; firstPassTile.UseReduceExtrapolate = encodingContext.UseReduceExtrapolate; firstPassTile.CodecQuantVals = encodingContext.CodecQuantVals; firstPassTile.QuantIdxY = encodingContext.QuantIdxY; firstPassTile.QuantIdxCb = encodingContext.QuantIdxCb; firstPassTile.QuantIdxCr = encodingContext.QuantIdxCr; firstPassTile.ProgCodecQuant = RdpegfxTileUtils.GetProgCodecQuant(ProgressiveChunk_Values.kChunk_25); progCTileList.Add(firstPassTile); encodingContext.prevProgQuant = RdpegfxTileUtils.GetProgCodecQuant(ProgressiveChunk_Values.kChunk_25); //Update DRS encodingContext.DRS.Sub(encodingContext.DTS); //Update DAS encodingContext.DAS.Add(encodingContext.DTS); #endregion #region Chunk 50,75,100, upgrade pass ProgressiveChunk_Values[] upgradeChunks = { ProgressiveChunk_Values.kChunk_50, ProgressiveChunk_Values.kChunk_75, ProgressiveChunk_Values.kChunk_100 }; foreach (ProgressiveChunk_Values tChunk in upgradeChunks) { ProgressiveQuantization(encodingContext, tChunk); RFX_PROGRESSIVE_CODEC_QUANT progquant = RdpegfxTileUtils.GetProgCodecQuant(tChunk); progCTileList.Add(SRLEncode(encodingContext, progquant)); //Update DRS encodingContext.DRS.Sub(encodingContext.DTS); //Update DAS encodingContext.DAS.Add(encodingContext.DTS); encodingContext.prevProgQuant = progquant; } return(progCTileList.ToArray()); #endregion } }
public static void SRLDecode(RfxProgressiveCodecContext codecContext, EncodedTile enTile, TileState tState) { SRLDecoder yDecoder = null; SRLDecoder cbDecoder = null; SRLDecoder crDecoder = null; List <short> yData = new List <short>(); List <short> cbData = new List <short>(); List <short> crData = new List <short>(); DwtTile triState = tState.GetTriState(); RFX_PROGRESSIVE_CODEC_QUANT prvProgQuant = tState.GetDwt().ProgCodecQuant; int nonLL3Len = RdpegfxTileUtils.ComponentElementCount - RdpegfxTileUtils.GetBandSize(BandType_Values.LL3, enTile.UseReduceExtrapolate); if (enTile.YEncodedData != null) { yDecoder = new SRLDecoder(enTile.YEncodedData); } if (enTile.CbEncodedData != null) { cbDecoder = new SRLDecoder(enTile.CbEncodedData); } if (enTile.CrEncodedData != null) { crDecoder = new SRLDecoder(enTile.CrEncodedData); } BitStream yRaw = BitStream.GetFromBytes(enTile.YRawData); BitStream cbRaw = BitStream.GetFromBytes(enTile.CbRawData); BitStream crRaw = BitStream.GetFromBytes(enTile.CrRawData); for (int i = 0; i < RdpegfxTileUtils.ComponentElementCount; i++) { BandType_Values band = RdpegfxTileUtils.GetBandByIndex(i, enTile.UseReduceExtrapolate); //Y int curBitPos = RdpegfxTileUtils.GetBitPosFromQuant(enTile.ProgCodecQuant.yQuantValues, band); int prvBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prvProgQuant.yQuantValues, band); int bitCount = prvBitPos - curBitPos; int sign = triState.Y_DwtQ[i]; if (bitCount > 0) { if (sign == 0 && i < nonLL3Len) { if (yDecoder != null) { short?decodedValue = yDecoder.DecodeOne(bitCount); if (decodedValue.HasValue) { yData.Add(decodedValue.Value); } else { yData.Add(0); } } else { yData.Add(0); } } else { int output; if (yRaw.ReadInt32(bitCount, out output)) { if (sign < 0 && i < nonLL3Len) { output = -output; } yData.Add((short)output); } else { yData.Add(0); } } } else { yData.Add(0); } //Cb curBitPos = RdpegfxTileUtils.GetBitPosFromQuant(enTile.ProgCodecQuant.cbQuantValues, band); prvBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prvProgQuant.cbQuantValues, band); bitCount = prvBitPos - curBitPos; sign = triState.Cb_DwtQ[i]; if (bitCount > 0) { if (sign == 0 && i < nonLL3Len) { if (cbDecoder != null) { short?decodedValue = cbDecoder.DecodeOne(bitCount); if (decodedValue.HasValue) { cbData.Add(decodedValue.Value); } else { cbData.Add(0); } } else { cbData.Add(0); } } else { int output; if (cbRaw.ReadInt32(bitCount, out output)) { if (sign < 0 && i < nonLL3Len) { output = -output; } cbData.Add((short)output); } else { cbData.Add(0); } } } else { cbData.Add(0); } //cr curBitPos = RdpegfxTileUtils.GetBitPosFromQuant(enTile.ProgCodecQuant.crQuantValues, band); prvBitPos = RdpegfxTileUtils.GetBitPosFromQuant(prvProgQuant.crQuantValues, band); bitCount = prvBitPos - curBitPos; sign = triState.Cr_DwtQ[i]; if (bitCount > 0) { if (sign == 0 && i < nonLL3Len) { if (crDecoder != null) { short?decodedValue = crDecoder.DecodeOne(bitCount); if (decodedValue.HasValue) { crData.Add(decodedValue.Value); } else { crData.Add(0); } } else { crData.Add(0); } } else { int output; if (crRaw.ReadInt32(bitCount, out output)) { if (sign < 0 && i < nonLL3Len) { output = -output; } crData.Add((short)output); } else { crData.Add(0); } } } else { crData.Add(0); } } codecContext.YComponent = yData.ToArray(); codecContext.CbComponent = cbData.ToArray(); codecContext.CrComponent = crData.ToArray(); }