private void SetParam(MetadataEditorAttr attr, string value)
{
if (_isFileReadOnly)
{
throw new InvalidOperationException("The media file is read-only.");
}
Interop.MetadataEditor.SetMetadata(Handle, attr, value).ThrowIfError("Failed to set value");
}
private string GetParam(MetadataEditorAttr attr)
{
IntPtr val = IntPtr.Zero;
try
{
Interop.MetadataEditor.GetMetadata(Handle, attr, out val)
.ThrowIfError("Failed to get metadata");
return(Marshal.PtrToStringAnsi(val));
}
finally
{
Interop.Libc.Free(val);
}
}
internal static extern MetadataEditorError SetMetadata(IntPtr handle, MetadataEditorAttr attribute, string value);
internal static extern MetadataEditorError GetMetadata(IntPtr handle, MetadataEditorAttr attribute, out IntPtr value);