/// <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
}
