private Dictionary<uint, Bitstream> ReadStreams (List<Page> pages, out long end)
{
Dictionary<uint, Bitstream> streams = new Dictionary<uint, Bitstream> ();
List<Bitstream> active_streams = new List<Bitstream> ();
long position = 0;
do
{
Bitstream stream = null;
Page page = new Page (this, position);
if ((page.Header.Flags & PageFlags.FirstPageOfStream) != 0)
{
stream = new Bitstream (page);
streams.Add (page.Header.StreamSerialNumber, stream);
active_streams.Add (stream);
}
if (stream == null)
stream = streams [page.Header.StreamSerialNumber];
if (active_streams.Contains (stream) && stream.ReadPage (page))
active_streams.Remove (stream);
if (pages != null)
pages.Add (page);
position += page.Size;
}
while (active_streams.Count > 0);
end = position;
return streams;
}