cog/Frameworks/vgmstream/vgmstream/src/meta/wv6.c

56 lines
1.8 KiB
C

#include "meta.h"
#include "../coding/coding.h"
/* WV6 - Gorilla Systems PC games [Spy Kids: Mega Mission Zone (PC), Lilo & Stitch: Hawaiian Adventure (PC)] */
VGMSTREAM * init_vgmstream_wv6(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
off_t start_offset;
int loop_flag, channel_count;
/* checks */
if (!check_extensions(streamFile, "wv6"))
goto fail;
if (read_32bitLE(0x00,streamFile) != get_streamfile_size(streamFile))
goto fail;
if (read_32bitBE(0x2c,streamFile) != 0x57563620 || /* "WV6 " */
read_32bitBE(0x30,streamFile) != 0x494D415F) /* "IMA_" ("WV6 IMA_ADPCM COMPRESSED 16 BIT AUDIO") */
goto fail;
/* 0x54/58/5c/60/6c: unknown (reject to catch possible stereo files, but don't seem to exist) */
if (read_32bitLE(0x54,streamFile) != 0x01 ||
read_32bitLE(0x58,streamFile) != 0x01 ||
read_32bitLE(0x5c,streamFile) != 0x10 ||
read_32bitLE(0x68,streamFile) != 0x01 ||
read_32bitLE(0x6c,streamFile) != 0x88)
goto fail;
/* 0x64: PCM size (samples*channels*2) */
channel_count = 1;
loop_flag = 0;
start_offset = 0x8c;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count, loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = read_32bitLE(0x60, streamFile);
vgmstream->num_samples = ima_bytes_to_samples(read_32bitLE(0x88,streamFile), channel_count);
vgmstream->meta_type = meta_WV6;
vgmstream->coding_type = coding_WV6_IMA;
vgmstream->layout_type = layout_none;
read_string(vgmstream->stream_name,0x1c+1, 0x04,streamFile);
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}