mirror of
https://github.com/vgmstream/vgmstream.git
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119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
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#include "meta.h"
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#include "../util.h"
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/* FSB3.0 */
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VGMSTREAM * init_vgmstream_fsb3(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[260];
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int fsb_headerlen;
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int loop_flag;
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int channel_count;
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off_t start_offset;
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("fsb",filename_extension(filename))) goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x46534233) goto fail; /* "FSB3" */
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/* "Check if the FSB is used as conatiner or as single file" */
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if (read_32bitLE(0x04,streamFile) != 0x1) goto fail;
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/* Check if we're dealing with a FSB3.1 file */
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if ((read_32bitBE(0x10,streamFile) != 0x00000300) &&
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(read_32bitBE(0x10,streamFile) != 0x01000300))
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goto fail;
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loop_flag = 0; // for now...
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channel_count = read_16bitLE(0x56,streamFile);
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fsb_headerlen = read_32bitLE(0x08,streamFile);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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// fsb_format = ;
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switch (((uint8_t)read_8bit(0x4A, streamFile)) >> 4) {
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case 0x0: // Nintendo DSP
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave_byte;
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vgmstream->interleave_block_size = 2;
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vgmstream->num_samples = (read_32bitLE(0x0C,streamFile))*14/8/channel_count;
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitLE(0x40,streamFile);
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vgmstream->loop_end_sample = (read_32bitLE(0x0C,streamFile))*14/8/channel_count;
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}
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break;
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case 0x4: // XBOX IMA ADPCM
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vgmstream->coding_type = coding_XBOX;
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vgmstream->layout_type = layout_none;
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vgmstream->num_samples = read_32bitLE(0x0C,streamFile)*64/36/channel_count;
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitLE(0x40,streamFile);
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vgmstream->loop_end_sample = read_32bitLE(0x0C,streamFile)*64/36/channel_count;
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}
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break;
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case 0x8: // PS2 APDCM
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vgmstream->coding_type = coding_PSX;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x10;
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vgmstream->num_samples = (read_32bitLE(0x0C,streamFile))*28/16/channel_count;
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitLE(0x40,streamFile);
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vgmstream->loop_end_sample = (read_32bitLE(0x0C,streamFile))*28/16/channel_count;
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}
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break;
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default:
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goto fail;
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}
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/* fill in the vital statistics */
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start_offset = fsb_headerlen+0x18;
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vgmstream->sample_rate = (read_32bitLE(0x4C, streamFile));
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if (read_32bitBE(0x10,streamFile) == 0x00000300) {
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vgmstream->meta_type = meta_FSB3_0;
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} else if (read_32bitBE(0x10,streamFile) == 0x01000300) {
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vgmstream->meta_type = meta_FSB3_1;
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}
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if (vgmstream->coding_type == coding_NGC_DSP) {
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int i,c;
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for (c=0;c<channel_count;c++) {
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for (i=0;i<16;i++) {
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vgmstream->ch[c].adpcm_coef[i] =
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read_16bitBE(0x68+c*0x2e +i*2,streamFile);
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}
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}
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}
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/* open the file for reading */
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{
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int i;
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STREAMFILE * file;
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file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!file) goto fail;
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = file;
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if (vgmstream->coding_type == coding_XBOX) {
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/* xbox interleaving is a little odd */
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vgmstream->ch[i].channel_start_offset=start_offset;
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} else {
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vgmstream->ch[i].channel_start_offset=
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start_offset+vgmstream->interleave_block_size*i;
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}
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vgmstream->ch[i].offset = vgmstream->ch[i].channel_start_offset;
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}
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}
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return vgmstream;
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/* clean up anything we may have opened */
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fail:
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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