mirror of
https://github.com/vgmstream/vgmstream.git
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a0023d2580
git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@601 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
#include "meta.h"
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#include "../util.h"
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VGMSTREAM * init_vgmstream_wii_str(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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STREAMFILE * infileSTH = NULL;
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char filename[260];
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char * filenameSTH = NULL;
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int i, j, channel_count, loop_flag;
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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("str",filename_extension(filename))) goto fail;
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/* check for .MIH file */
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filenameSTH=(char *)malloc(strlen(filename)+1);
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if (!filenameSTH) goto fail;
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strcpy(filenameSTH,filename);
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strcpy(filenameSTH+strlen(filenameSTH)-3,"sth");
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infileSTH = streamFile->open(streamFile,filenameSTH,STREAMFILE_DEFAULT_BUFFER_SIZE);
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/* STH File is necessary, so we can't confuse those file */
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/* with others .STR file as it is a very common extension */
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if (!infileSTH) goto fail;
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if(read_32bitLE(0x2C,infileSTH)!=0)
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goto fail;
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channel_count = read_32bitBE(0x70,infileSTH);
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if(channel_count==1)
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loop_flag = (read_32bitBE(0xD4,infileSTH)==0x00740000);
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else
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loop_flag = (read_32bitBE(0x124,infileSTH)==0x00740000);
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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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/* fill in the vital statistics */
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = read_32bitBE(0x38,infileSTH);
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vgmstream->interleave_block_size=0x8000;
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vgmstream->num_samples=read_32bitBE(0x34,infileSTH);
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = meta_WII_STR;
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if(loop_flag) {
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vgmstream->loop_start_sample = 0;
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vgmstream->loop_end_sample = vgmstream->num_samples;
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}
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/* open the file for reading by each channel */
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{
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,vgmstream->interleave_block_size);
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if (!vgmstream->ch[i].streamfile) goto fail;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset+=(off_t)(vgmstream->interleave_block_size*i);
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for(j=0; j<16; j++) {
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vgmstream->ch[i].adpcm_coef[j]=read_16bitBE(0xAC+(j*2)+(i*0x50),infileSTH);
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}
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}
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}
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close_streamfile(infileSTH); infileSTH=NULL;
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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 (infileSTH) close_streamfile(infileSTH);
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if (filenameSTH) {free(filenameSTH); filenameSTH=NULL;}
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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