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Add support for AIFC loop comments [Battle Tryst (Arcade)]

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This commit is contained in:
bnnm 2020-12-05 19:26:18 +01:00
parent ee1b0fc1f6
commit 8744c2f908
1 changed files with 21 additions and 2 deletions
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23
src/meta/aifc.c
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@ -326,12 +326,31 @@ VGMSTREAM* init_vgmstream_aifc(STREAMFILE* sf) {
* will become apparent. * will become apparent.
* We shouldn't have a loop point that overflows an int32_t anyway. */ * We shouldn't have a loop point that overflows an int32_t anyway. */
loop_flag = 1; loop_flag = 1;
if (loop_start==loop_end) if (loop_start == loop_end)
loop_flag = 0; loop_flag = 0;
} }
} }
}
if (!loop_flag && mark_offset) {
int mark_count = read_u16be(mark_offset + 0x00,sf);
/* Relic has "beg loop" "end loop" comments but no actual looping? */ /* use "beg/end" loop comments [Battle Tryst (Arcade)]
* Relic codec has 3 "beg loop" "end loop" "start offset" comments, but always begin = 0 and end = -1 */
if (mark_count == 2) {
/* per mark:
* 00(2): id
* 02(4): sample point
* 06(1): string size
* --(-): string (non-null terminated)
* --(1): null terminator */
/* simplified... */
if (read_u32be(mark_offset + 0x09,sf) == 0x62656720 && /* "beg " */
read_u32be(mark_offset + 0x19,sf) == 0x656E6420) { /* "end " */
loop_start = read_s32be(mark_offset + 0x04, sf);
loop_end = read_s32be(mark_offset + 0x14, sf);
loop_flag = 1;
}
}
} }