public CVPixelBuffer(nint width, nint height, CVPixelFormatType pixelFormatType, CVPixelBufferAttributes attributes)
: this(width, height, pixelFormatType, attributes == null ? null : attributes.Dictionary)
{
}
public CVPixelBuffer(System.Drawing.Size size, CVPixelFormatType pixelFormatType, CVPixelBufferAttributes attributes)
: this(size.Width, size.Height, pixelFormatType, attributes == null ? null : attributes.Dictionary)
{
}
public static CVPixelBuffer Create(IOSurface.IOSurface surface, out CVReturn result, CVPixelBufferAttributes pixelBufferAttributes = null)
{
if (surface == null)
{
throw new ArgumentNullException(nameof(surface));
}
IntPtr pixelBufferPtr;
result = CVPixelBufferCreateWithIOSurface(
allocator: IntPtr.Zero,
surface: surface.Handle,
pixelBufferAttributes: pixelBufferAttributes?.Dictionary.Handle ?? IntPtr.Zero,
pixelBufferOut: out pixelBufferPtr
);
if (result != CVReturn.Success)
{
return(null);
}
return(new CVPixelBuffer(pixelBufferPtr, true));
}
public static CVPixelBuffer Create(IOSurface.IOSurface surface, CVPixelBufferAttributes pixelBufferAttributes = null)
{
CVReturn result;
return(Create(surface, out result, pixelBufferAttributes));
}
public static CVPixelBuffer?Create(nint width, nint height, CVPixelFormatType pixelFormatType, byte[][] planes, nint[] planeWidths, nint[] planeHeights, nint[] planeBytesPerRow, CVPixelBufferAttributes pixelBufferAttributes, out CVReturn status)
{
IntPtr handle;
IntPtr[] addresses;
PlaneData data;
GCHandle data_handle;
if (planes == null)
{
throw new ArgumentNullException(nameof(planes));
}
if (planeWidths == null)
{
throw new ArgumentNullException(nameof(planeWidths));
}
if (planeHeights == null)
{
throw new ArgumentNullException(nameof(planeHeights));
}
if (planeBytesPerRow == null)
{
throw new ArgumentNullException(nameof(planeBytesPerRow));
}
var planeCount = planes.Length;
if (planeWidths.Length != planeCount)
{
throw new ArgumentOutOfRangeException(nameof(planeWidths), "The length of planeWidths does not match the number of planes");
}
if (planeHeights.Length != planeCount)
{
throw new ArgumentOutOfRangeException(nameof(planeWidths), "The length of planeHeights does not match the number of planes");
}
if (planeBytesPerRow.Length != planeCount)
{
throw new ArgumentOutOfRangeException(nameof(planeWidths), "The length of planeBytesPerRow does not match the number of planes");
}
addresses = new IntPtr [planeCount];
data = new PlaneData();
data.dataHandles = new GCHandle [planeCount];
for (int i = 0; i < planeCount; i++)
{
data.dataHandles[i] = GCHandle.Alloc(planes [i], GCHandleType.Pinned); // This can't use unsafe code because we need to get the pointer for an unbound number of objects.
addresses[i] = data.dataHandles[i].AddrOfPinnedObject();
}
data_handle = GCHandle.Alloc(data);
IntPtr data_handle_ptr = GCHandle.ToIntPtr(data_handle);
status = CVPixelBufferCreateWithPlanarBytes(IntPtr.Zero,
width, height, pixelFormatType, IntPtr.Zero, 0,
planeCount, addresses, planeWidths, planeHeights, planeBytesPerRow,
releasePlanarBytesCallback, data_handle_ptr,
DictionaryContainerHelper.GetHandle(pixelBufferAttributes), out handle);
if (status != CVReturn.Success)
{
ReleasePlanarBytesCallback(data_handle_ptr, IntPtr.Zero, 0, 0, IntPtr.Zero);
return(null);
}
return(new CVPixelBuffer(handle, true));
}
public static CVPixelBuffer?Create(nint width, nint height, CVPixelFormatType pixelFormatType, byte[][] planes, nint[] planeWidths, nint[] planeHeights, nint[] planeBytesPerRow, CVPixelBufferAttributes pixelBufferAttributes)
{
CVReturn status;
return(Create(width, height, pixelFormatType, planes, planeWidths, planeHeights, planeBytesPerRow, pixelBufferAttributes, out status));
}
public static CVPixelBuffer?Create(nint width, nint height, CVPixelFormatType pixelFormatType, byte[] data, nint bytesPerRow, CVPixelBufferAttributes pixelBufferAttributes, out CVReturn status)
{
IntPtr handle;
GCHandle gchandle;
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (data.Length < height * bytesPerRow)
{
throw new ArgumentOutOfRangeException(nameof(data), "The length of data is smaller than height * bytesPerRow");
}
gchandle = GCHandle.Alloc(data, GCHandleType.Pinned); // This requires a pinned GCHandle, because unsafe code is scoped to the current block, and the address of the byte array will be used after this function returns.
status = CVPixelBufferCreateWithBytes(IntPtr.Zero, width, height, pixelFormatType, gchandle.AddrOfPinnedObject(), bytesPerRow, releaseBytesCallback, GCHandle.ToIntPtr(gchandle), DictionaryContainerHelper.GetHandle(pixelBufferAttributes), out handle);
if (status != CVReturn.Success)
{
gchandle.Free();
return(null);
}
return(new CVPixelBuffer(handle, true));
}
public static CVPixelBuffer?Create(nint width, nint height, CVPixelFormatType pixelFormatType, byte[] data, nint bytesPerRow, CVPixelBufferAttributes pixelBufferAttributes)
{
CVReturn status;
return(Create(width, height, pixelFormatType, data, bytesPerRow, pixelBufferAttributes, out status));
}
public CVPixelBufferPool(CVPixelBufferPoolSettings settings, CVPixelBufferAttributes pixelBufferAttributes)
: this(settings.GetDictionary() !, pixelBufferAttributes.GetDictionary() !)
