/// <summary> /// Passes bitstream to the decoder. /// </summary> /// <param name="inbuf">Bitstream buffer to pass</param> /// <param name="offset">Index into inbuf</param> /// <param name="length">Number of bytes to use from inbuf</param> void PutBitstream(byte[] inbuf, int offset, int length) { FastMemcpyMemmove.memmove(bitstream.Data, bitstream.Data + (int)bitstream.DataOffset, (int)bitstream.DataLength); bitstream.DataOffset = 0; int free = (int)(bitstream.MaxLength - bitstream.DataLength); Trace.Assert(length <= free); Marshal.Copy(inbuf, offset, bitstream.Data + (int)bitstream.DataLength, length); bitstream.DataLength += (uint)length; }
/// <summary> /// Puts the bitstream. /// </summary> /// <param name="inbuf">The inbuf.</param> /// <param name="offset">The offset.</param> /// <param name="length">The length.</param> /// <exception cref="QuickSyncException">insufficient space in buffer</exception> public void PutBitstream(byte[] inbuf, int offset, int length) { FastMemcpyMemmove.memmove(bitstream.Data, bitstream.Data + (int)bitstream.DataOffset, (int)bitstream.DataLength); bitstream.DataOffset = 0; int free = (int)(bitstream.MaxLength - bitstream.DataLength); //Trace.Assert(length <= free); if (free < length) { throw new QuickSyncException("insufficient space in buffer"); } Marshal.Copy(inbuf, offset, bitstream.Data + (int)bitstream.DataLength, length); bitstream.DataLength += (uint)length; }
unsafe static public Bitmap GetBitmap(this ILowLevelDecoder decoder, mfxFrameSurface1 surface) { #if false // if ( this.Data.MemId == IntPtr.Zero) { Trace.Assert(this.Info.FourCC == FourCC.NV12, "AsBitmap only works on NV12 currently"); Bitmap bmp = new Bitmap(this.Info.CropW, this.Info.CropH, PixelFormat.Format32bppArgb); Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height); // var a = new FrameFormatConverterFromNV12(FourCC.BGR4,bmp.Width, bmp.Height); var a = new NV12ToXXXXLowLevelConverter(); BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat); // Get the address of the first line. IntPtr ptr = bmpData.Scan0; a.ConvertFromNV12FrameSurface(FourCC.BGR4, this.Data.Y_ptr, this.Data.UV_ptr, (byte*)bmpData.Scan0, bmp.Width, bmp.Height, bmpData.Stride * bmpData.Height, this.Info.CropW, bmpData.Stride); return bmp; #else Trace.Assert(surface.Info.FourCC == FourCC.RGB4, "For vidmem, AsBitmap only works on RGB4 currently"); Bitmap bmp = new Bitmap(surface.Info.CropW, surface.Info.CropH, PixelFormat.Format32bppArgb); Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height); BitmapData bmpData; bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat); // Get the address of the first line. IntPtr ptr = bmpData.Scan0; mfxFrameData fd = new mfxFrameData(); decoder.LockFrame((IntPtr)(&surface)); Console.WriteLine(fd.B); int pitch = fd.PitchHigh << 16 | fd.PitchLow; var zm = new byte[pitch * surface.Info.CropH]; //for (int i = 0; i < zm.Length; i++) //{ // zm[i] = 1; //} // Marshal.Copy(fd.B, zm, 0, zm.Length); // Console.WriteLine(zm.Sum(z => (long)z)); if (pitch == bmpData.Stride) { FastMemcpyMemmove.memcpy(ptr, fd.B, pitch * surface.Info.CropH); } else { int minpitch = Math.Min(pitch, bmpData.Stride); for (int i = 0; i < surface.Info.CropH; i++) { FastMemcpyMemmove.memcpy(ptr + bmpData.Stride * i, fd.B + pitch * i, minpitch); } } decoder.UnlockFrame((IntPtr)(&surface)); bmp.UnlockBits(bmpData); return bmp; } #endif }