#include "meta.h" #include "../util.h" VGMSTREAM * init_vgmstream_afc(const char * const filename) { VGMSTREAM * vgmstream = NULL; STREAMFILE * infile = NULL; int loop_flag; const int channel_count = 2; /* .afc seems to be stereo only */ /* check extension, case insensitive */ if (strcasecmp("afc",filename_extension(filename))) goto fail; /* try to open the file for header reading */ infile = open_streamfile(filename); if (!infile) goto fail; /* we will get a sample rate, that's as close to checking as I think * we can get */ /* build the VGMSTREAM */ loop_flag = read_32bitBE(0x10,infile); vgmstream = allocate_vgmstream(channel_count,loop_flag); if (!vgmstream) goto fail; /* fill in the vital statistics */ vgmstream->num_samples = read_32bitBE(0x04,infile); vgmstream->sample_rate = (uint16_t)read_16bitBE(0x08,infile); /* channels and loop flag are set by allocate_vgmstream */ vgmstream->loop_start_sample = read_32bitBE(0x14,infile); vgmstream->loop_end_sample = vgmstream->num_samples; vgmstream->coding_type = coding_NGC_AFC; vgmstream->layout_type = layout_interleave; vgmstream->meta_type = meta_AFC; /* frame-level interleave (9 bytes) */ vgmstream->interleave_block_size = 9; close_streamfile(infile); infile=NULL; /* open the file for reading by each channel */ { int i; for (i=0;ich[i].streamfile = open_streamfile_buffer(filename,9*0x400); if (!vgmstream->ch[i].streamfile) goto fail; vgmstream->ch[i].channel_start_offset= vgmstream->ch[i].offset= 0x20 + i*vgmstream->interleave_block_size; } } return vgmstream; /* clean up anything we may have opened */ fail: if (infile) close_streamfile(infile); if (vgmstream) close_vgmstream(vgmstream); return NULL; }