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;
if (!Enum.TryParse <ChromaType>(chromaStr, out type))
{
throw new ArgumentException("Unsupported chroma type " + chromaStr);
}
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);
}
public void SetFormat(BitmapFormat format)
{
m_format = format;
LibVlcMethods.libvlc_video_set_format(m_hMediaPlayer, m_format.Chroma.ToUtf8(), m_format.Width, m_format.Height, m_format.Pitch);
m_pBuffer = MemoryHeap.Alloc(m_format.ImageSize);
m_pixelData = new PixelData(m_format.ImageSize);
m_pixelDataPtr = GCHandle.Alloc(m_pixelData, GCHandleType.Pinned);
LibVlcMethods.libvlc_video_set_callbacks(m_hMediaPlayer, pLockCallback, pUnlockCallback, pDisplayCallback, m_pixelDataPtr.AddrOfPinnedObject());
}