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C# BitWriter.WriteVarIntUnsigned方法代码示例

本文整理汇总了C#中BitWriter.WriteVarIntUnsigned方法的典型用法代码示例。如果您正苦于以下问题:C# BitWriter.WriteVarIntUnsigned方法的具体用法?C# BitWriter.WriteVarIntUnsigned怎么用?C# BitWriter.WriteVarIntUnsigned使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在BitWriter的用法示例。


在下文中一共展示了BitWriter.WriteVarIntUnsigned方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: EncodePrediction

 private unsafe byte[] EncodePrediction(Bitmap Frame)
 {
     //We'll just look if there are blocks that are 100% the same first
     BitmapData d = Frame.LockBits(new Rectangle(0, 0, Frame.Width, Frame.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
     BitmapData prev = PastFrames[1].LockBits(new Rectangle(0, 0, Frame.Width, Frame.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
     for (int y = 0; y < Height; y += 16)
     {
         for (int x = 0; x < Width; x += 16)
         {
             MacroBlocks[y / 16][x / 16] = new MacroBlock(d, x, y);
             bool same = true;
             for (int y2 = 0; y2 < 16; y2++)
             {
                 ulong* pA = (ulong*)(((byte*)d.Scan0) + (y + y2) * d.Stride + x * 4);
                 ulong* pB = (ulong*)(((byte*)prev.Scan0) + (y + y2) * prev.Stride + x * 4);
                 for (int x2 = 0; x2 < 16; x2+=2)
                 {
                     ulong color = *pA++;
                     ulong color2 = *pB++;
                     if (color != color2)
                     {
                         same = false;
                         break;
                     }
                 }
                 if (!same) break;
             }
             if (same) MacroBlocks[y / 16][x / 16].Predict = true;
             else
             {
                 Analyzer.ConfigureBlockY(this, MacroBlocks[y / 16][x / 16]);
                 int blocktype2 = Analyzer.AnalyzeBlockUV(this, MacroBlocks[y / 16][x / 16]);
                 MacroBlocks[y / 16][x / 16].UVPredictionMode = blocktype2;
                 MacroBlocks[y / 16][x / 16].UVUseComplex8x8[0] = true;
                 MacroBlocks[y / 16][x / 16].UVUseComplex8x8[1] = true;
                 MacroBlocks[y / 16][x / 16].SetupDCTs(this);
             }
         }
     }
     Frame.UnlockBits(d);
     PastFrames[1].UnlockBits(prev);
     BitWriter b = new BitWriter();
     b.WriteBits(0, 1);//Interframe
     b.WriteVarIntSigned(0);
     for (int y = 0; y < Height; y += 16)
     {
         for (int x = 0; x < Width; x += 16)
         {
             MacroBlock curblock = MacroBlocks[y / 16][x / 16];
             if (curblock.Predict)
             {
                 b.WriteBits(1, 1);
                 b.WriteVarIntUnsigned(0);
             }
             else
             {
                 b.WriteBits(0xE >> 1, 5);
                 EncodeBlockIntra(curblock, b);
             }
         }
     }
     b.WriteBits(0, 16);
     b.Flush();
     byte[] result = b.ToArray();
     return result;
 }
开发者ID:elfinlazz,项目名称:MobiclipDecoder,代码行数:66,代码来源:MobiEncoder.cs

示例2: EncodeBlockIntra

 private void EncodeBlockIntra(MacroBlock Block, BitWriter b)
 {
     uint dctmask =
                (Block.YUseComplex8x8[0] ? 1u : 0) |
                ((Block.YUseComplex8x8[1] ? 1u : 0) << 1) |
                ((Block.YUseComplex8x8[2] ? 1u : 0) << 2) |
                ((Block.YUseComplex8x8[3] ? 1u : 0) << 3) |
                ((Block.UVUseComplex8x8[0] ? 1u : 0) << 4) |
                ((Block.UVUseComplex8x8[1] ? 1u : 0) << 5);
     b.WriteVarIntUnsigned(REV_byte_115FC4[dctmask]);
     b.WriteBits((uint)Block.YPredictionMode, 3);//Block type
     for (int y2 = 0; y2 < 2; y2++)
     {
         for (int x2 = 0; x2 < 2; x2++)
         {
             if (Block.YUseComplex8x8[x2 + y2 * 2] && !Block.YUse4x4[x2 + y2 * 2])
             {
                 b.WriteBits(1, 1);//Don't use 4x4 blocks
                 EncodeDCT(Block.YDCT8x8[x2 + y2 * 2], 0, b);
             }
             else if (Block.YUseComplex8x8[x2 + y2 * 2] && Block.YUse4x4[x2 + y2 * 2])
             {
                 uint dctmask2 =
                     (Block.YUseDCT4x4[x2 + y2 * 2][0] ? 1u : 0) |
                     ((Block.YUseDCT4x4[x2 + y2 * 2][1] ? 1u : 0) << 1) |
                     ((Block.YUseDCT4x4[x2 + y2 * 2][2] ? 1u : 0) << 2) |
                     ((Block.YUseDCT4x4[x2 + y2 * 2][3] ? 1u : 0) << 3);
                 b.WriteVarIntUnsigned(REV_byte_1164F4[dctmask2]);
                 for (int y3 = 0; y3 < 2; y3++)
                 {
                     for (int x3 = 0; x3 < 2; x3++)
                     {
                         if (Block.YUseDCT4x4[x2 + y2 * 2][x3 + y3 * 2])
                             EncodeDCT(Block.YDCT4x4[x2 + y2 * 2][x3 + y3 * 2], 0, b);
                     }
                 }
             }
         }
     }
     b.WriteBits((uint)Block.UVPredictionMode, 3);//Block type
     for (int q = 0; q < 2; q++)
     {
         if (Block.UVUseComplex8x8[q] && !Block.UVUse4x4[q])
         {
             b.WriteBits(1, 1);//Don't use 4x4 blocks
             EncodeDCT(Block.UVDCT8x8[q], 0, b);
         }
     }
 }
开发者ID:elfinlazz,项目名称:MobiclipDecoder,代码行数:49,代码来源:MobiEncoder.cs


注:本文中的BitWriter.WriteVarIntUnsigned方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。