private unsafe int OnFormatCallback(void **opaque, char *chroma, int *width, int *height, int *pitches, int *lines)
{
IntPtr pChroma = new IntPtr(chroma);
string chromaStr = Marshal.PtrToStringAnsi(pChroma);
ChromaType type = chromaStr.TryParseChromaType();
m_format = new BitmapFormat(*width, *height, type);
if (m_formatSetupCB != null)
{
m_format = m_formatSetupCB(m_format);
}
Marshal.Copy(m_format.Chroma.ToUtf8(), 0, pChroma, 4);
*width = m_format.Width;
*height = m_format.Height;
for (int i = 0; i < m_format.Planes; i++)
{
pitches[i] = m_format.Pitches[i];
lines[i] = m_format.Lines[i];
}
m_pixelData = new PlanarPixelData(m_format.PlaneSizes);
return(m_format.Planes);
}
/// <summary>
/// Initializes new instance of BitmapFormat class
/// </summary>
/// <param name="width">The width of the bitmap in pixels</param>
/// <param name="height">The height of the bitmap in pixels</param>
/// <param name="chroma">Chroma type of the bitmap</param>
public BitmapFormat(int width, int height, ChromaType chroma)
{
m_width = width;
m_height = height;
m_chroma = chroma;
Init();
Pitch = m_width * m_bpp;
ImageSize = Pitch * height;
Chroma = m_chroma.ToString();
}
public VideoDisplayContext(int width, int height, ChromaType chroma)
{
ChromaType = chroma;
PixelFormat = chroma.GetPixelFormat();
IsAspectRatioChecked = false;
Size = width * height * PixelFormat.BitsPerPixel / 8;
DisplayWidth = Width = width;
DisplayHeight = Height = height;
Stride = width * PixelFormat.BitsPerPixel / 8;
FileMapping = Win32Api.CreateFileMapping(new IntPtr(-1), IntPtr.Zero, PageAccess.ReadWrite, 0, Size, null);
MapView = Win32Api.MapViewOfFile(FileMapping, FileMapAccess.AllAccess, 0, 0, (uint)Size);
Image =
(InteropBitmap)
Imaging.CreateBitmapSourceFromMemorySection(FileMapping, Width, Height, PixelFormat, Stride, 0);
}
public VideoDisplayContext(int width, int height, ChromaType chroma)
{
ChromaType = chroma;
PixelFormat = chroma.GetPixelFormat();
IsAspectRatioChecked = false;
Size = width*height*PixelFormat.BitsPerPixel/8;
DisplayWidth = Width = width;
DisplayHeight = Height = height;
Stride = width*PixelFormat.BitsPerPixel/8;
FileMapping = Win32Api.CreateFileMapping(new IntPtr(-1), IntPtr.Zero, PageAccess.ReadWrite, 0, Size, null);
MapView = Win32Api.MapViewOfFile(FileMapping, FileMapAccess.AllAccess, 0, 0, (uint) Size);
Image =
(InteropBitmap)
Imaging.CreateBitmapSourceFromMemorySection(FileMapping, Width, Height, PixelFormat, Stride, 0);
}
/// <summary>
/// Initializes new instance of BitmapFormat class
/// </summary>
/// <param name="width">The width of the bitmap in pixels</param>
/// <param name="height">The height of the bitmap in pixels</param>
/// <param name="chroma">Chroma type of the bitmap</param>
public BitmapFormat(int width, int height, ChromaType chroma)
{
Width = width;
Height = height;
m_chroma = chroma;
Planes = 1;
Init();
Chroma = m_chroma.ToString();
if (IsRGB || !IsPlanarFormat)
{
m_sizes[0] = Pitch = Width * BitsPerPixel / 8;
ImageSize = Pitch * Height;
}
}
private static PixelAlignmentType GetYuvType(ChromaType chromaType)
{
switch (chromaType)
{
case ChromaType.YV12:
return PixelAlignmentType.YV12;
case ChromaType.I420:
return PixelAlignmentType.I420;
case ChromaType.NV12:
return PixelAlignmentType.NV12;
case ChromaType.YUY2:
return PixelAlignmentType.YUY2;
case ChromaType.UYVY:
return PixelAlignmentType.UYVY;
default:
throw new ArgumentException("Invalid parameter " + chromaType.ToString());
}
}
/// <summary>
/// Initializes new instance of BitmapFormat class
/// </summary>
/// <param name="width">The width of the bitmap in pixels</param>
/// <param name="height">The height of the bitmap in pixels</param>
/// <param name="chroma">Chroma type of the bitmap</param>
public BitmapFormat(int width, int height, ChromaType chroma)
{
Width = width;
Height = height;
ChromaType = chroma;
Planes = 1;
PlaneSizes = new int[3];
Init();
Chroma = ChromaType.ToString();
if (IsRGB)
{
Pitch = Width * BitsPerPixel / 8;
PlaneSizes[0] = ImageSize = Pitch * Height;
Pitches = new int[1] { Pitch };
Lines = new int[1] { Height };
}
}
/// <summary>
/// Initializes new instance of BitmapFormat class
/// </summary>
/// <param name="width">The width of the bitmap in pixels</param>
/// <param name="height">The height of the bitmap in pixels</param>
/// <param name="chroma">Chroma type of the bitmap</param>
public BitmapFormat(int width, int height, ChromaType chroma)
{
Width = width;
Height = height;
ChromaType = chroma;
Planes = 1;
PlaneSizes = new int[3];
Init();
Chroma = ChromaType.ToString();
if (IsRGB)
{
Pitch = Width * BitsPerPixel / 8;
PlaneSizes[0] = ImageSize = Pitch * Height;
Pitches = new int[1] {
Pitch
};
Lines = new int[1] {
Height
};
}
}
public static PixelFormat GetPixelFormat(this ChromaType chroma)
{
switch (chroma)
{
case ChromaType.RV15:
return(PixelFormats.Bgr555);
case ChromaType.RV16:
return(PixelFormats.Bgr565);
case ChromaType.RV24:
return(PixelFormats.Bgr24);
case ChromaType.RV32:
return(PixelFormats.Bgr32);
case ChromaType.RGBA:
return(PixelFormats.Bgra32);
default:
throw new NotSupportedException(String.Format("Not support pixel format: {0}", chroma));
}
}
public VideoDisplayContext(double width, double height, ChromaType chroma)
: this((int)width, (int)height, chroma)
{
}
public VideoDisplayContext(uint width, uint height, ChromaType chroma)
: this((int)width, (int)height, chroma)
{
}
internal VideoFormatChangingEventArgs(uint width, uint height, ChromaType chromaType)
{
Width = width;
Height = height;
ChromaType = chromaType;
}
public VideoDisplayContext(double width, double height, ChromaType chroma)
: this((int)width, (int)height, chroma)
{
}
public VideoDisplayContext(uint width, uint height, ChromaType chroma)
: this((int)width, (int)height, chroma)
{
}
