#include "meta.h" #include "../util.h" /* GCUB - found in 'Sega Soccer Slam' */ VGMSTREAM * init_vgmstream_maxis_xa(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("xa",filename_extension(filename))) goto fail; /* check header */ if (read_32bitBE(0x00,streamFile) != 0x58414900) /* "XAI\0" */ goto fail; loop_flag = 0; channel_count = read_16bitLE(0xA,streamFile); /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(channel_count,loop_flag); if (!vgmstream) goto fail; /* fill in the vital statistics */ start_offset = 0x18; vgmstream->channels = channel_count; vgmstream->sample_rate = read_32bitLE(0x0C,streamFile); vgmstream->coding_type = coding_EA_ADPCM; vgmstream->num_samples = vgmstream->num_samples = (int32_t)((get_streamfile_size(streamFile)-start_offset)* 2 / vgmstream->channels); if (loop_flag) { vgmstream->loop_start_sample = 0; vgmstream->loop_end_sample = (read_32bitBE(0x0C,streamFile)-start_offset)/8/channel_count*14; } vgmstream->layout_type = layout_none; // vgmstream->interleave_block_size = 0x8000; // read_32bitBE(0x04,streamFile); vgmstream->meta_type = meta_MAXIS_XA; /* open the file for reading */ { int i; STREAMFILE * file; file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE); if (!file) goto fail; for (i=0;i<channel_count;i++) { vgmstream->ch[i].streamfile = file; vgmstream->ch[i].channel_start_offset= vgmstream->ch[i].offset=start_offset+ vgmstream->interleave_block_size*i; } } return vgmstream; /* clean up anything we may have opened */ fail: if (vgmstream) close_vgmstream(vgmstream); return NULL; }