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a088475b9d
The memory must be allocated with g_malloc() as we will free it again later with g_free(), as such allocate and copy the array that is passed in.
60 lines
2.3 KiB
C#
60 lines
2.3 KiB
C#
// Copyright (C) 2014 Stephan Sundermann <stephansundermann@gmail.com>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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// 02110-1301 USA
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namespace Gst {
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using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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partial class Buffer {
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[DllImport("gstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern UIntPtr gst_buffer_extract(IntPtr raw, UIntPtr offset, byte[] dest, UIntPtr size);
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public ulong Extract(ulong offset, ref byte[] dest) {
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UIntPtr raw_ret = gst_buffer_extract(Handle, new UIntPtr (offset), dest, new UIntPtr ((ulong)dest.Length));
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ulong ret = (ulong) raw_ret;
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return ret;
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}
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[DllImport("gstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern void gst_buffer_extract_dup(IntPtr raw, UIntPtr offset, UIntPtr size, out IntPtr dest, out UIntPtr dest_size);
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public ulong ExtractDup(ulong offset, ulong size, out byte[] dest) {
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UIntPtr native_dest_size;
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IntPtr ptr;
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gst_buffer_extract_dup(Handle, new UIntPtr (offset), new UIntPtr (size), out ptr, out native_dest_size);
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byte[] bytes = new byte[(ulong)native_dest_size];
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Marshal.Copy (ptr, bytes, 0, (int)native_dest_size);
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dest = bytes;
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GLib.Marshaller.Free (ptr);
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return (ulong) native_dest_size;
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}
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[DllImport("gstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr gst_buffer_new_wrapped(IntPtr data, UIntPtr n_length);
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public Buffer (byte[] data)
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{
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IntPtr ptr = GLib.Marshaller.Malloc((ulong) data.Length);
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Marshal.Copy(data, 0, ptr, data.Length);
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Raw = gst_buffer_new_wrapped(ptr, new UIntPtr((ulong) data.Length));
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}
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}
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}
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