public async Task Decode(EbmlParser parser, bool force, bool recursive)
{
if (Decoded && !force)
{
return;
}
if (parser == null)
{
throw new ArgumentNullException(nameof(parser));
}
if (parser.DataAccessor == null)
{
throw new InvalidOperationException(
ExceptionsResourceManager.ResourceManager.GetString("InvalidDecodeState", CultureInfo.CurrentCulture));
}
if (DataPosition >= EndPosition)
{
Console.WriteLine($"Element {this} contains no children");
return;
}
await _parserSemaphoreSlim.WaitAsync().ConfigureAwait(false);
try
{
_parserPosition = DataPosition;
while (_parserPosition < EndPosition)
{
var element = await parser.ParseElementAt(_parserPosition, Parent).ConfigureAwait(false);
if (element == null)
{
_parserPosition = parser.DataAccessor.Position;
continue;
}
if (recursive)
{
await element.Decode(parser).ConfigureAwait(false);
}
_parserPosition = parser.DataAccessor.Position;
InsertElement(element);
}
Decoded = true;
}
finally
{
_parserSemaphoreSlim.Release(1);
}
}
public async Task <EbmlElement?> DecodeChildAt(EbmlParser parser, long index)
{
if (parser is null)
{
throw new ArgumentNullException(nameof(parser));
}
if (index < DataPosition || index >= EndPosition)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
var child = await parser.ParseElementAt(index).ConfigureAwait(false);
if (child != null)
{
InsertElement(child);
}
return(child);
}
public async Task <EbmlElement?> DecodeNextChild(EbmlParser parser)
{
if (parser is null)
{
throw new ArgumentNullException(nameof(parser));
}
var lastChild = _children.LastOrDefault().Value;
if (lastChild.Position > EndPosition)
{
throw new EndOfMasterException(ExceptionsResourceManager.ResourceManager.GetString("NoChildLeft", CultureInfo.CurrentCulture));
}
var index = lastChild.EndPosition;
var child = await parser.ParseElementAt(index).ConfigureAwait(false);
if (child != null)
{
InsertElement(child);
}
return(child);
}