mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-24 04:14:50 +01:00
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
static size_t joe_find_padding(STREAMFILE *streamFile, off_t start_offset, size_t data_size, int channels, size_t interleave);
|
|
|
|
/* .JOE - from Asobo Studio games [Up (PS2), Wall-E (PS2)] */
|
|
VGMSTREAM * init_vgmstream_ps2_joe(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t start_offset;
|
|
int channel_count, loop_flag, sample_rate;
|
|
int32_t num_samples, loop_start = 0, loop_end = 0;
|
|
size_t file_size, data_size, unknown1, unknown2, interleave, padding_size;
|
|
|
|
|
|
/* checks */
|
|
if (!check_extensions(streamFile, "joe"))
|
|
goto fail;
|
|
|
|
file_size = get_streamfile_size(streamFile);
|
|
data_size = read_32bitLE(0x04,streamFile);
|
|
unknown1 = read_32bitLE(0x08,streamFile);
|
|
unknown2 = read_32bitLE(0x0c,streamFile);
|
|
|
|
/* detect version */
|
|
if (data_size / 2 == file_size - 0x10
|
|
&& unknown1 == 0x0045039A && unknown2 == 0x00108920) { /* Super Farm (PS2) */
|
|
data_size = data_size / 2;
|
|
interleave = 0x4000;
|
|
start_offset = 0x10;
|
|
} else if (data_size / 2 == file_size - 0x10
|
|
&& unknown1 == 0xCCCCCCCC && unknown2 == 0xCCCCCCCC) { /* Sitting Ducks (PS2) */
|
|
data_size = data_size / 2;
|
|
interleave = 0x8000;
|
|
start_offset = 0x10;
|
|
} else if (data_size == file_size - 0x10
|
|
&& unknown1 == 0xCCCCCCCC && unknown2 == 0xCCCCCCCC) { /* The Mummy: The Animated Series (PS2) */
|
|
interleave = 0x8000;
|
|
start_offset = 0x10;
|
|
} else if (data_size == file_size - 0x4020) { /* CT Special Forces (PS2), and all games beyond */
|
|
interleave = unknown1; /* always 0? */
|
|
if (!interleave)
|
|
interleave = 0x10;
|
|
start_offset = 0x4020; /* header padding contains garbage */
|
|
} else {
|
|
goto fail;
|
|
}
|
|
|
|
//start_offset = file_size - data_size; /* also ok */
|
|
channel_count = 2;
|
|
loop_flag = 0;
|
|
sample_rate = read_32bitLE(0x00,streamFile);
|
|
|
|
/* the file's end is padded with either 0xcdcdcdcd or zeroes */
|
|
padding_size = joe_find_padding(streamFile, start_offset, data_size, channel_count, interleave);
|
|
if (padding_size == SIZE_MAX)
|
|
goto fail;
|
|
|
|
data_size -= padding_size;
|
|
num_samples = ps_bytes_to_samples(data_size, channel_count);
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = sample_rate;
|
|
vgmstream->num_samples = num_samples;
|
|
vgmstream->loop_start_sample = loop_start;
|
|
vgmstream->loop_end_sample = loop_end;
|
|
vgmstream->stream_size = data_size;
|
|
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = interleave;
|
|
vgmstream->meta_type = meta_PS2_JOE;
|
|
|
|
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|
|
|
|
static size_t joe_find_padding(STREAMFILE *streamFile, off_t start_offset, size_t data_size, int channels, size_t interleave) {
|
|
uint8_t flag;
|
|
off_t min_offset, offset;
|
|
size_t frame_size = 0x10;
|
|
size_t padding_size = 0;
|
|
size_t interleave_consumed = 0;
|
|
|
|
if (data_size == 0 || channels == 0 || (channels > 0 && interleave == 0))
|
|
return SIZE_MAX;
|
|
|
|
offset = start_offset + data_size - interleave * (channels - 1);
|
|
min_offset = start_offset;
|
|
|
|
while (offset > min_offset) {
|
|
offset -= frame_size;
|
|
flag = read_8bit(offset + 0x01, streamFile);
|
|
if (flag == 0x03)
|
|
break;
|
|
|
|
padding_size += frame_size * channels;
|
|
|
|
/* skip other channels */
|
|
interleave_consumed += 0x10;
|
|
if (interleave_consumed == interleave) {
|
|
interleave_consumed = 0;
|
|
offset -= interleave * (channels - 1);
|
|
}
|
|
}
|
|
|
|
if (padding_size >= data_size)
|
|
return SIZE_MAX;
|
|
|
|
return padding_size;
|
|
}
|