diff options
Diffstat (limited to 'lib/vgmstream/src/meta/ps2_mic.c')
-rw-r--r-- | lib/vgmstream/src/meta/ps2_mic.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/vgmstream/src/meta/ps2_mic.c b/lib/vgmstream/src/meta/ps2_mic.c new file mode 100644 index 0000000000..89a615d200 --- /dev/null +++ b/lib/vgmstream/src/meta/ps2_mic.c @@ -0,0 +1,75 @@ +#include "meta.h" +#include "../util.h" + +/* MIC + + PS2 MIC format is an interleaved format found in most of KOEI Games + The header always start the long value 0x800 which is the start + of the BGM datas. + + 2008-05-15 - Fastelbja : First version ... +*/ + +VGMSTREAM * init_vgmstream_ps2_mic(STREAMFILE *streamFile) { + VGMSTREAM * vgmstream = NULL; + char filename[260]; + + int loop_flag=0; + int channel_count; + int i; + + /* check extension, case insensitive */ + streamFile->get_name(streamFile,filename,sizeof(filename)); + if (strcasecmp("mic",filename_extension(filename))) goto fail; + + /* check Header */ + if (read_32bitLE(0x00,streamFile) != 0x800) + goto fail; + + /* check loop */ + loop_flag = (read_32bitLE(0x14,streamFile)!=1); + + channel_count=read_32bitLE(0x08,streamFile); + + /* 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_32bitLE(0x04,streamFile); + + /* Compression Scheme */ + vgmstream->coding_type = coding_PSX; + vgmstream->num_samples = read_32bitLE(0x10,streamFile)*14*channel_count; + + /* Get loop point values */ + if(vgmstream->loop_flag) { + vgmstream->loop_start_sample = read_32bitLE(0x14,streamFile)*14*channel_count; + vgmstream->loop_end_sample = read_32bitLE(0x10,streamFile)*14*channel_count; + } + + vgmstream->interleave_block_size = read_32bitLE(0x0C,streamFile); + vgmstream->layout_type = layout_interleave; + vgmstream->meta_type = meta_PS2_MIC; + + /* open the file for reading by each channel */ + { + for (i=0;i<channel_count;i++) { + vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,vgmstream->interleave_block_size); + + if (!vgmstream->ch[i].streamfile) goto fail; + + vgmstream->ch[i].channel_start_offset= + vgmstream->ch[i].offset= + (off_t)(0x800+vgmstream->interleave_block_size*i); + } + } + + return vgmstream; + + /* clean up anything we may have opened */ +fail: + if (vgmstream) close_vgmstream(vgmstream); + return NULL; +} |