vgmstream/src/meta/afc.c

54 lines
1.5 KiB
C

#include "meta.h"
#include "../util.h"
/* .AFC - from Nintendo games [Super Mario Sunshine (GC), The Legend of Zelda: Wind Waker (GC)] */
VGMSTREAM * init_vgmstream_afc(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
off_t start_offset;
int loop_flag, channel_count;
/* checks */
/* .afc: common
* .stx: Pikmin (GC) */
if (!check_extensions(streamFile, "afc,stx"))
goto fail;
if (read_u32be(0x00, streamFile) > get_streamfile_size(streamFile)) /* size without padding */
goto fail;
if (read_u16be(0x0a, streamFile) != 4) /* bps? */
goto fail;
if (read_u16be(0x0c, streamFile) != 16) /* samples per frame? */
goto fail;
/* 0x0e: always 0x1E? */
channel_count = 2;
loop_flag = read_s32be(0x10, streamFile);
start_offset = 0x20;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_AFC;
vgmstream->num_samples = read_s32be(0x04, streamFile);
vgmstream->sample_rate = read_u16be(0x08, streamFile);
vgmstream->loop_start_sample = read_s32be(0x14, streamFile);
vgmstream->loop_end_sample = vgmstream->num_samples;
vgmstream->coding_type = coding_NGC_AFC;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x09;
if (!vgmstream_open_stream(vgmstream, streamFile, start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}