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[DllImport ("gstreamer-0.10.dll") ]
static extern IntPtr gst_structure_to_string (IntPtr handle);
public override string ToString () {
IntPtr raw_ret = gst_structure_to_string (Handle);
string ret = GLib.Marshaller.PtrToStringGFree (raw_ret);
return ret;
}
[DllImport ("gstreamer-0.10.dll") ]
static extern int gst_structure_n_fields (IntPtr raw);
public int Size {
get {
int raw_ret = gst_structure_n_fields (Handle);
int ret = raw_ret;
return ret;
}
}
[DllImport ("gstreamer-0.10.dll") ]
static extern bool gst_tag_list_copy_value (ref GLib.Value dest, IntPtr list, IntPtr tag);
[DllImport ("gstreamer-0.10.dll") ]
static extern IntPtr gst_tag_list_get_value_index (IntPtr raw, IntPtr tag, uint index);
public object this[string tag, uint index] {
get {
IntPtr raw_string = GLib.Marshaller.StringToPtrGStrdup (tag);
IntPtr raw_ret = gst_tag_list_get_value_index (Handle, raw_string, index);
GLib.Marshaller.Free (raw_string);
if (raw_ret == IntPtr.Zero)
return null;
GLib.Value v = (GLib.Value) Marshal.PtrToStructure (raw_ret, typeof (GLib.Value));
return (object) v.Val;
}
}
public object this[string tag] {
get {
GLib.Value v = GLib.Value.Empty;
bool success;
IntPtr raw_string = GLib.Marshaller.StringToPtrGStrdup (tag);
success = gst_tag_list_copy_value (ref v, Handle, raw_string);
GLib.Marshaller.Free (raw_string);
if (!success)
return null;
object ret = (object) v.Val;
v.Dispose ();
return ret;
}
}
[DllImport ("gstreamersharpglue-0.10") ]
static extern void gstsharp_gst_tag_list_add_value (IntPtr list, Gst.TagMergeMode mode, IntPtr tag, ref GLib.Value v);
public void Add (Gst.TagMergeMode mode, string tag, object value) {
if (!Tag.Exists (tag))
throw new ArgumentException (String.Format ("Invalid tag name '{0}'", tag));
GLib.Value v = new GLib.Value (value);
IntPtr raw_string = GLib.Marshaller.StringToPtrGStrdup (tag);
gstsharp_gst_tag_list_add_value (Handle, mode, raw_string, ref v);
v.Dispose ();
GLib.Marshaller.Free (raw_string);
}
public void Add (Gst.TagMergeMode mode, params object[] parameters) {
if (parameters.Length % 2 != 0)
throw new ArgumentException ();
for (int i = 0; i < parameters.Length; i += 2) {
if (parameters[i].GetType () != typeof (string))
throw new ArgumentException ();
Add (mode, parameters[i] as string, parameters[i+1]);
}
}
[DllImport ("gstreamer-0.10.dll") ]
static extern IntPtr gst_structure_nth_field_name (IntPtr raw, uint index);
private string NthFieldName (uint index) {
IntPtr raw_ret = gst_structure_nth_field_name (Handle, index);
string ret = GLib.Marshaller.Utf8PtrToString (raw_ret);
return ret;
}
public string[] Tags {
get {
string[] tags = new string[Size];
for (uint i = 0; i < Size; i++)
tags[i] = NthFieldName (i);
return tags;
}
}
[DllImport ("gstreamer-0.10.dll") ]
static extern IntPtr gst_structure_get_value (IntPtr raw, IntPtr fieldname);
public Gst.List GetTag (string tag) {
IntPtr raw_string = GLib.Marshaller.StringToPtrGStrdup (tag);
IntPtr raw_ret = gst_structure_get_value (Handle, raw_string);
GLib.Marshaller.Free (raw_string);
GLib.Value ret = (GLib.Value) Marshal.PtrToStructure (raw_ret, typeof (GLib.Value));
object o = ret.Val;
if (o.GetType () == typeof (Gst.List))
return (Gst.List) o;
return new Gst.List (new object[] { o });
}
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