diff options
Diffstat (limited to 'lib/vgmstream/src/meta/sdt.c')
-rw-r--r-- | lib/vgmstream/src/meta/sdt.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/lib/vgmstream/src/meta/sdt.c b/lib/vgmstream/src/meta/sdt.c new file mode 100644 index 0000000000..1959ef8a86 --- /dev/null +++ b/lib/vgmstream/src/meta/sdt.c @@ -0,0 +1,80 @@ +#include "meta.h" +#include "../util.h" + +/* SDT (Baldur's Gate - Dark Alliance) */ +VGMSTREAM * init_vgmstream_sdt(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("sdt",filename_extension(filename))) goto fail; + +#if 0 + /* check header */ + if (read_32bitBE(0x00,streamFile) != 0x53565300) /* "SVS\0" */ + goto fail; +#endif + + loop_flag = (read_32bitBE(0x04,streamFile)!=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 = 0xA0; + vgmstream->channels = read_32bitBE(0x00,streamFile); + vgmstream->sample_rate = read_32bitBE(0x08,streamFile); + vgmstream->coding_type = coding_NGC_DSP; + vgmstream->num_samples = read_32bitBE(0x14,streamFile)/8*14/channel_count; + if (loop_flag) { + vgmstream->loop_start_sample = 0; /* (read_32bitLE(0x08,streamFile)-1)*28; */ + vgmstream->loop_end_sample = read_32bitBE(0x14,streamFile)/8*14/channel_count; + } + + vgmstream->layout_type = layout_interleave; + vgmstream->interleave_block_size = 0x8000; + vgmstream->meta_type = meta_SDT; + + +if (vgmstream->coding_type == coding_NGC_DSP) { + int i; + for (i=0;i<16;i++) { + vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x3C+i*2,streamFile); + } + if (vgmstream->channels) { + for (i=0;i<16;i++) { + vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x6A+i*2,streamFile); + } + } +} + + /* 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; +} |