internal DefineSprite(ulong length, SwfBitStream swfStream)
: base(TagCode, length)
{
SpriteID = swfStream.GetUInt16();
FrameCount = swfStream.GetUInt16();
var tags = new List<SwfTag>();
var startBytes = swfStream.BytesRead;
do
{
tags.Add(ParseTag(swfStream));
} while (swfStream.BytesRead - startBytes < Length);
ControlTags = tags.ToArray();
}
internal static SwfTag ParseTag(SwfBitStream swfStream)
{
const ushort low6 = 63;
var codeAndLength = swfStream.GetUInt16();
var code = (ushort)((codeAndLength & ~low6) >> 6);
var length = (uint)(codeAndLength & low6);
var longTag = length == 0x3F;
if (longTag)
{
length = swfStream.GetUInt32();
}
switch (code)
{
case DefineSprite.TagCode:
return new DefineSprite(length, swfStream);
default:
return new GenericTag(code, length, swfStream);
}
}