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Fixed some MSF looping [Castlevania HoD (PS3)]

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This commit is contained in:
bnnm 2017-03-24 16:37:14 +01:00
parent 6d4d3105ab
commit cbd4e4e726
1 changed files with 5 additions and 5 deletions
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10
src/meta/ps3_msf.c
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@ -21,7 +21,7 @@ VGMSTREAM * init_vgmstream_ps3_msf(STREAMFILE *streamFile) {
start_offset = header_offset+0x40; /* MSF header is always 0x40 */
/* check header "MSF" + version-char
* usually "MSF\0\1", "MSF\0\2", "MSF5"(\3\5), "MSFC"(\4\3) (latest/common version) */
* usually "MSF\0\1", "MSF\0\2", "MSF0"(\3\0), "MSF5"(\3\5), "MSFC"(\4\3) (last/common version) */
id = read_32bitBE(header_offset+0x00,streamFile);
if ((id & 0xffffff00) != 0x4D534600) goto fail;
@ -33,15 +33,15 @@ VGMSTREAM * init_vgmstream_ps3_msf(STREAMFILE *streamFile) {
data_size = get_streamfile_size(streamFile) - start_offset;
/* byte flags, not in MSFv1 or v2
* 0x01/02/04/08: loop marker 0/1/2/3 (requires flag 0x10)
* 0x01/02/04/08: loop marker 0/1/2/3
* 0x10: "resample" loop option (may be active with no 0x01 flag set)
* 0x20: VBR MP3
* 0x40: joint stereo MP3 (apparently interleaved stereo for other formats)
* 0x80+: (none/reserved) */
flags = read_32bitBE(header_offset+0x14,streamFile);
/* sometimes loop_start/end is set but not flag 0x01, but from tests it only loops with 0x01
* Malicious PS3 uses flag 0x2 instead */
loop_flag = flags != 0xffffffff && (((flags & 0x10) && (flags & 0x01)) || (flags & 0x02));
/* sometimes loop_start/end is set with flag 0x10, but from tests it only loops if 0x01/02 is set
* 0x10 often goes with 0x01 but not always (Castlevania HoD); Malicious PS3 uses flag 0x2 instead */
loop_flag = flags != 0xffffffff && ((flags & 0x01) || (flags & 0x02));
/* loop markers (marker N @ 0x18 + N*(4+4), but in practice only marker 0 is used) */
if (loop_flag) {