gstreamer/sources/custom/Adapter.cs

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// Copyright (C) 2013 Stephan Sundermann <stephansundermann@gmail.com>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301 USA
namespace Gst.Base {
using System;
using System.Runtime.InteropServices;
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public partial class Adapter
{
[DllImport("libgstbase-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
static extern void gst_adapter_copy(IntPtr raw, out IntPtr dest, int offset, int size);
public byte[] Copy(int offset, int size) {
IntPtr mem = Marshal.AllocHGlobal (size);
gst_adapter_copy(Handle, out mem, offset, size);
byte[] bytes = new byte[size];
Marshal.Copy (mem, bytes, 0, size);
return bytes;
}
[DllImport("libgstbase-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
static extern IntPtr gst_adapter_map(IntPtr raw, out int size);
public byte[] Map() {
int size;
IntPtr mem = gst_adapter_map (Handle, out size);
byte[] ret = new byte[size];
Marshal.Copy (mem, ret , 0, size);
return ret;
}
}
}