//==========================================================================
public libvlc_track_description_t libvlc_video_get_track_description(IntPtr p_mi)
{
VerifyAccess();
IntPtr pointer = m_libvlc_video_get_track_description(p_mi);
if (pointer == IntPtr.Zero)
{
return(null);
}
// I still have no clue whether the returned descriptions have to be freed
// in any way; but i assume not
internal_libvlc_track_description_t track_description = (internal_libvlc_track_description_t)Marshal.PtrToStructure(pointer, typeof(internal_libvlc_track_description_t));
libvlc_track_description_t result = new libvlc_track_description_t {
i_id = track_description.i_id, psz_name = track_description.psz_name
};
libvlc_track_description_t current = result;
while (track_description.p_next != IntPtr.Zero)
{
track_description = (internal_libvlc_track_description_t)Marshal.PtrToStructure(track_description.p_next, typeof(internal_libvlc_track_description_t));
current.p_next = new libvlc_track_description_t {
i_id = track_description.i_id, psz_name = track_description.psz_name
};
current = current.p_next;
}
current.p_next = null;
m_libvlc_track_description_list_release(pointer);
return(result);
}
//==========================================================================
public libvlc_track_description_t libvlc_video_get_spu_description(IntPtr p_mi)
{
VerifyAccess();
IntPtr pointer = m_libvlc_video_get_spu_description(p_mi);
if (pointer == IntPtr.Zero)
{
return(null);
}
internal_libvlc_track_description_t track_description = (internal_libvlc_track_description_t)Marshal.PtrToStructure(pointer, typeof(internal_libvlc_track_description_t));
libvlc_track_description_t result = new libvlc_track_description_t {
i_id = track_description.i_id, psz_name = track_description.psz_name
};
libvlc_track_description_t current = result;
while (track_description.p_next != IntPtr.Zero)
{
track_description = (internal_libvlc_track_description_t)Marshal.PtrToStructure(track_description.p_next, typeof(internal_libvlc_track_description_t));
current.p_next = new libvlc_track_description_t {
i_id = track_description.i_id, psz_name = track_description.psz_name
};
current = current.p_next;
}
current.p_next = null;
m_libvlc_track_description_list_release(pointer);
return(result);
}
