mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-13 15:21:04 +01:00
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
#include <ctype.h>
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#include "meta.h"
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#include "../util.h"
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#ifdef WIN32
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#define DIRSEP '\\'
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#else
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#define DIRSEP '/'
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#endif
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/* .pos is a tiny file with loop points, and the same base name as a .wav */
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VGMSTREAM * init_vgmstream_pos(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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STREAMFILE * streamFileWAV = NULL;
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char filename[PATH_LIMIT];
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char filenameWAV[PATH_LIMIT];
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int i;
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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("pos",filename_extension(filename))) goto fail;
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/* check for .WAV file */
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strcpy(filenameWAV,filename);
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strcpy(filenameWAV+strlen(filenameWAV)-3,"wav");
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streamFileWAV = streamFile->open(streamFile,filenameWAV,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!streamFileWAV) {
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/* try again, ucase */
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for (i=strlen(filenameWAV);i>=0&&filenameWAV[i]!=DIRSEP;i--)
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filenameWAV[i]=toupper(filenameWAV[i]);
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streamFileWAV = streamFile->open(streamFile,filenameWAV,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!streamFileWAV) goto fail;
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}
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/* let the real initer do the parsing */
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vgmstream = init_vgmstream_riff(streamFileWAV);
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if (!vgmstream) goto fail;
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close_streamfile(streamFileWAV);
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streamFileWAV = NULL;
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/* install loops */
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if (!vgmstream->loop_flag) {
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vgmstream->loop_flag = 1;
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vgmstream->loop_ch = calloc(vgmstream->channels,
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sizeof(VGMSTREAMCHANNEL));
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if (!vgmstream->loop_ch) goto fail;
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}
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vgmstream->loop_start_sample = read_32bitLE(0,streamFile);
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vgmstream->loop_end_sample = read_32bitLE(4,streamFile);
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vgmstream->meta_type = meta_RIFF_WAVE_POS;
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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 (streamFileWAV) close_streamfile(streamFileWAV);
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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