#include "meta.h" #include "../util.h" /* RAS (from Donkey Kong Country Returns) */ VGMSTREAM * init_vgmstream_wii_ras(STREAMFILE *streamFile) { VGMSTREAM * vgmstream = NULL; char filename[260]; off_t start_offset; int loop_flag; int channel_count; /* check extension, case insensitive */ streamFile->get_name(streamFile,filename,sizeof(filename)); if (strcasecmp("ras",filename_extension(filename))) goto fail; /* check header */ if (read_32bitBE(0x00,streamFile) != 0x5241535F) /* "RAS_" */ goto fail; loop_flag = 0; channel_count = 2; /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(channel_count,loop_flag); if (!vgmstream) goto fail; /* fill in the vital statistics */ start_offset = read_32bitBE(0x18,streamFile); vgmstream->channels = channel_count; vgmstream->sample_rate = read_32bitBE(0x14,streamFile); vgmstream->coding_type = coding_NGC_DSP; vgmstream->num_samples = read_32bitBE(0xc,streamFile); vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = read_32bitBE(0x20,streamFile); vgmstream->meta_type = meta_WII_RAS; if (vgmstream->coding_type == coding_NGC_DSP) { int i; for (i=0;i<16;i++) { vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x40+i*2,streamFile); } if (channel_count == 2) { for (i=0;i<16;i++) vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x70+i*2,streamFile); } } /* open the file for reading */ { int i; for (i=0;ilayout_type==layout_interleave_shortblock) vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename, vgmstream->interleave_block_size); else vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename, 0x1000); if (!vgmstream->ch[i].streamfile) goto fail; vgmstream->ch[i].channel_start_offset= vgmstream->ch[i].offset= start_offset + i*vgmstream->interleave_block_size; } } return vgmstream; /* clean up anything we may have opened */ fail: if (vgmstream) close_vgmstream(vgmstream); return NULL; }