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Allow TXTH chunks + subfiles + subsongs [Gitaroo Man (PSP)]

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This commit is contained in:
bnnm 2019-03-24 15:36:57 +01:00
parent 0fa7ed0b6f
commit 88951a1ab2
2 changed files with 23 additions and 1 deletions
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18
doc/TXTH.md
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@ -512,7 +512,7 @@ num_samples = data_size
### Chunks
Chunks affect some values (padding size, data size, etc) and are a bit sensitive to order at the moment, due to technical complexities:
```
# Street Fighter EX3
# Street Fighter EX3 (PS2)
# base config is defined normally
codec = PSX
@ -532,3 +532,19 @@ start_offset = 0x00
padding_size = auto-empty
num_samples = data_size
```
Subfiles and chunks can coexist:
```
# Gitaroo Man (PSP)
# 3 interleaved RIFF files
subsong_count = 3
chunk_start = 0
chunk_size = 0x2800
chunk_count = 3
# the 3 de-interleaved chunks are treated and parsed as a subsong
subfile_offset = 0
subfile_size = @0x04 + 0x08 #RIFF size
subfile_extension = at3
```

6
src/meta/txth.c
View File

@ -557,6 +557,12 @@ static VGMSTREAM *init_subfile(txth_header * txth) {
vgmstream_force_loop(vgmstream, 0, 0, 0);
}
if (txth->chunk_count && txth->subsong_count) {
vgmstream->num_streams = txth->subsong_count;
}
//todo: other combos with subsongs + subfile?
close_streamfile(streamSubfile);
return vgmstream;