Cool_Tools/vgmstream
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bnnm 2019-08-03 23:37:45 +02:00
parent e08a0d8431
commit 39a63e2a51
1 changed files with 2 additions and 27 deletions
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29
src/meta/ps_headerless.c
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@ -1,7 +1,5 @@
#include "meta.h" #include "meta.h"
#include "../util.h" #include "../coding/coding.h"
static int check_psadpcm(STREAMFILE *streamFile);
/* headerless PS-ADPCM - from Katamary Damacy (PS2), Air (PS2), Aladdin: Nasira's Revenge (PS1) /* headerless PS-ADPCM - from Katamary Damacy (PS2), Air (PS2), Aladdin: Nasira's Revenge (PS1)
@ -51,7 +49,7 @@ VGMSTREAM * init_vgmstream_ps_headerless(STREAMFILE *streamFile) {
goto fail; goto fail;
/* test if raw PS-ADPCM */ /* test if raw PS-ADPCM */
if (!check_psadpcm(streamFile)) if (!ps_check_format(streamFile, 0x00, 0x2000))
goto fail; goto fail;
@ -286,26 +284,3 @@ fail:
close_vgmstream(vgmstream); close_vgmstream(vgmstream);
return NULL; return NULL;
} }
/* tests some PS-ADPCM frames */
static int check_psadpcm(STREAMFILE *streamFile) {
off_t offset, max_offset;
max_offset = get_streamfile_size(streamFile);
if (max_offset > 0x2000)
max_offset = 0x2000;
offset = 0x00;
while (offset < max_offset) {
uint8_t predictor = (read_8bit(offset+0x00,streamFile) >> 4) & 0x0f;
uint8_t flags = read_8bit(offset+0x01,streamFile);
if (predictor > 5 || flags > 7)
goto fail;
offset += 0x10;
}
return 1;
fail:
return 0;
}