// timestamp=-1 is treated as current time.
[DllImport("fccore")] public static extern Bool fcWebMAddVideoFramePixels(fcWebMContext ctx, byte[] pixels, fcPixelFormat fmt, double timestamp = -1.0);
[DllImport("fccore")] public static extern Bool fcPngExportPixels(fcPngContext ctx, string path, byte[] pixels, int width, int height, fcPixelFormat fmt, int num_channels);
[DllImport("fccore")] public static extern Bool fcExrAddLayerPixels(fcExrContext ctx, byte[] pixels, fcPixelFormat fmt, int ch, string name);
[DllImport("FrameCapturer")] private static extern int fcMP4AddVideoFrameTextureDeferred(fcMP4Context ctx, IntPtr tex, fcPixelFormat fmt, double time, int id);
[DllImport("fccore")] internal static extern Bool fcMP4AddVideoFramePixels(fcMP4Context ctx, byte[] pixels, fcPixelFormat fmt, double timestamp = -1.0);
[DllImport("FrameCapturer")] private static extern int fcExrAddLayerTextureDeferred(fcEXRContext ctx, IntPtr tex, fcPixelFormat f, int ch, string name, Bool flipY, int id);
[DllImport("FrameCapturer")] private static extern int fcGifAddFrameTextureDeferred(fcGIFContext ctx, IntPtr tex, fcPixelFormat fmt, Bool keyframe, double timestamp, int id);
public static extern bool fcExrAddLayerPixels(fcEXRContext ctx, IntPtr pixels, fcPixelFormat f, int ch, string name, bool flipY);
[DllImport("FrameCapturer")] private static extern int fcPngExportTextureDeferred(fcPNGContext ctx, string path, IntPtr tex, int width, int height, fcPixelFormat f, Bool flipY, int id);
private static extern int fcMP4AddVideoFrameTextureDeferred(fcMP4Context ctx, IntPtr tex, fcPixelFormat fmt, double time, int id);
private static extern int fcPngExportTextureDeferred(fcPNGContext ctx, string path, IntPtr tex, int width, int height, fcPixelFormat f, Bool flipY, int id);
private static extern int fcGifAddFrameTextureDeferred(fcGIFContext ctx, IntPtr tex, fcPixelFormat fmt, Bool keyframe, double timestamp, int id);
private static extern int fcExrAddLayerTextureDeferred(fcEXRContext ctx, IntPtr tex, fcPixelFormat f, int ch, string name, Bool flipY, int id);
[DllImport("fccore")] private static extern fcDeferredCall fcWebMAddVideoFrameTexture(fcWebMContext ctx, IntPtr tex, fcPixelFormat fmt, double timestamp, fcDeferredCall id);
[DllImport("fccore")] private static extern fcDeferredCall fcGifAddFrameTextureDeferred(fcGifContext ctx, IntPtr tex, fcPixelFormat fmt, Bool keyframe, double timestamp, fcDeferredCall id);
[DllImport("fccore")] public static extern Bool fcGifAddFramePixels(fcGifContext ctx, byte[] pixels, fcPixelFormat fmt, bool keyframe = false, double timestamp = -1.0);
