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// Copyright (C) 2014 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 {
using System;
using System.Collections;
using System.Runtime.InteropServices;
partial class Buffer {
[DllImport("gstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
static extern UIntPtr gst_buffer_extract(IntPtr raw, UIntPtr offset, byte[] dest, UIntPtr size);
public ulong Extract(ulong offset, ref byte[] dest) {
UIntPtr raw_ret = gst_buffer_extract(Handle, new UIntPtr (offset), dest, new UIntPtr ((ulong)dest.Length));
ulong ret = (ulong) raw_ret;
return ret;
}
[DllImport("gstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
static extern void gst_buffer_extract_dup(IntPtr raw, UIntPtr offset, UIntPtr size, out IntPtr dest, out UIntPtr dest_size);
public ulong ExtractDup(ulong offset, ulong size, out byte[] dest) {
UIntPtr native_dest_size;
IntPtr ptr;
gst_buffer_extract_dup(Handle, new UIntPtr (offset), new UIntPtr (size), out ptr, out native_dest_size);
byte[] bytes = new byte[(ulong)native_dest_size];
Marshal.Copy (ptr, bytes, 0, (int)native_dest_size);
dest = bytes;
GLib.Marshaller.Free (ptr);
return (ulong) native_dest_size;
}
[DllImport("gstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
static extern IntPtr gst_buffer_new_wrapped(IntPtr data, UIntPtr n_length);
public Buffer (byte[] data)
{
IntPtr ptr = GLib.Marshaller.Malloc((ulong) data.Length);
Marshal.Copy(data, 0, ptr, data.Length);
Raw = gst_buffer_new_wrapped(ptr, new UIntPtr((ulong) data.Length));
}
}
}
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