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hi, developers, i've written a small
program to list all tags in a swf file, then remove some unknown tags by some
encryption software. But i have some problems here. RECORDHEADER definition
have two types, short one for tags with 62 bytes or less and long one for tags
with more bytes. But it seems there are some undocumented rules, e.g. FLASM
said, Code: if (length >= 63 || type == TAG_DEFINEBITSLOSSLESS || type == TAG_DEFINEBITSLOSSLESS2 || type == TAG_SOUNDSTREAMBLOCK) { /* long length, and also workaround for a really strange bug in flash
player: the above tags must always have long length to work */ flputShort((type << 6) + 63); flputLong(length); } else { /* short length */ flputShort((type << 6) + length); } Is it true, or even some more rules
here? Thanks very much for kindly helps. |
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