mirror of
https://github.com/horsicq/Detect-It-Easy.git
synced 2026-06-24 01:54:08 +00:00
887e361406
- RIFF .WAV fixed up a little, works on Qt5 again :D - Audiokinetic Wwise RIFF .wem/.bnk added and infoed; it's similar to .wav but it's a special beast! The sizes are supposed to be wrong sometimes, welcome to the real world perfectionists - Together with WEM, a new shared 'library' is introduced for various helper routines
37 lines
1.6 KiB
Text
37 lines
1.6 KiB
Text
// Detect-It-Easy signature file
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// Various parser helpers from vgmstream, modified for DiE.
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// Author: Kaens (TG @kaens)
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/* beautify ignore:start */
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includeScript("read");
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/** Read values from an 'old' XMA2 RIFF "XMA2" chunk (XMA2WAVEFORMAT), starting from an offset *after* chunk type+size.
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* Useful as custom X360 headers commonly have it lurking inside.
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* @param Int p - offset
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* @return [channels, sample rate, loop flag, raw samples, start loop sample, end loop sample]
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*/
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function xma2_parse_xma2_chunk(p) {
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//ref vgmstream coding_utils.c
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var hkver = X.U8(p), strm = X.U8(p+1), lpst = X.U32(p+4, _BE), lped = X.U32(p+8, _BE),
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lp = X.U8(p+3) > 0 || lped, sr = X.U32(p+0xC, _BE),
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smp = X.U32(p+(hkver == 3 ? 0x14 : 0x1C), _BE),
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ch = 0, ofs = hkver == 3? 0x20 : 0x28;
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for(var i=0; i < strm; i++) ch += X.U8(p+ofs+i*4);
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return [ch, sr, lp, smp, lpst, lped]
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}
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/** Read values from a 'new' XMA2 RIFF "fmt" chunk (XMA2WAVEFORMATEX), starting from an offset *after* chunk type+size.
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* Useful as custom X360 headers commonly have it lurking inside. Only parses the extra data (before is a normal WAVEFORMATEX).
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* @param Int p - offset
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* @param Int e - endianness
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* @return [loop flag, samples, start loop sample, end loop sample]
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*/
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function xma2_parse_fmt_chunk_extra(p, e) {
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var smp = X.U32(p+0x18, e), lpst = X.U32(p+0x28, e), lped = X.U32(p+0x2C, e), lp = X.U8(p+0x30) || lped;
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//source bugfix:
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if(lpst+128-512 == 0 && lped+128-512+256 >= smp+128-512) lp = false;
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return [lp, smp, lpst, lped]
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}
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/* beautify ignore:end */
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