#include "meta.h" #include "../util.h" /* ISH+ISD */ VGMSTREAM * init_vgmstream_ish_isd(STREAMFILE *streamFile) { VGMSTREAM * vgmstream = NULL; STREAMFILE * streamFileISH = NULL; char filename[260]; char filenameISH[260]; int i; int channel_count; int loop_flag; /* check extension, case insensitive */ streamFile->get_name(streamFile,filename,sizeof(filename)); if (strcasecmp("isd",filename_extension(filename))) goto fail; strcpy(filenameISH,filename); strcpy(filenameISH+strlen(filenameISH)-3,"ISH"); streamFileISH = streamFile->open(streamFile,filenameISH,STREAMFILE_DEFAULT_BUFFER_SIZE); if (!streamFileISH) goto fail; /* check header */ if (read_32bitBE(0x00,streamFileISH) != 0x495F5346) /* "I_SF" */ goto fail; channel_count = read_32bitBE(0x14,streamFileISH); loop_flag = read_32bitBE(0x20,streamFileISH); /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(channel_count,loop_flag); if (!vgmstream) goto fail; /* fill in the vital statistics */ vgmstream->channels = channel_count; vgmstream->sample_rate = read_32bitBE(0x08,streamFileISH); vgmstream->num_samples=read_32bitBE(0x0C,streamFileISH); vgmstream->coding_type = coding_NGC_DSP; if(loop_flag) { vgmstream->loop_start_sample = read_32bitBE(0x20,streamFileISH)*14/8/channel_count; vgmstream->loop_end_sample = read_32bitBE(0x24,streamFileISH)*14/8/channel_count; } if (channel_count == 1) { vgmstream->layout_type = layout_none; } else if (channel_count == 2) { vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = read_32bitBE(0x18,streamFileISH); } vgmstream->meta_type = meta_ISH_ISD; /* open the file for reading */ { for (i=0;ich[i].streamfile = streamFile->open(streamFile,filename,vgmstream->interleave_block_size); vgmstream->ch[i].offset = 0; if (!vgmstream->ch[i].streamfile) goto fail; } } 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,streamFileISH); } if (vgmstream->channels == 2) { for (i=0;i<16;i++) { vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x80+i*2,streamFileISH); } } } close_streamfile(streamFileISH); streamFileISH=NULL; return vgmstream; /* clean up anything we may have opened */ fail: if (streamFileISH) close_streamfile(streamFileISH); if (vgmstream) close_vgmstream(vgmstream); return NULL; }