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add another style of .sli

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git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@364 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
This commit is contained in:
halleyscometsw 2008-07-22 01:03:20 +00:00
parent 9ae3307b15
commit fc806393bc
3 changed files with 34 additions and 7 deletions
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35
src/meta/sli.c
View File

@ -26,6 +26,8 @@ VGMSTREAM * init_vgmstream_sli_ogg(STREAMFILE *streamFile) {
int done;
int32_t loop_start = -1;
int32_t loop_length = -1;
int32_t loop_from = -1;
int32_t loop_to = -1;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
@ -51,6 +53,7 @@ VGMSTREAM * init_vgmstream_sli_ogg(STREAMFILE *streamFile) {
sli_offset = 0;
while ((loop_start == -1 || loop_length == -1) && sli_offset < get_streamfile_size(streamFile)) {
char *endptr;
char *foundptr;
bytes_read=get_streamfile_dos_line(sizeof(linebuffer),linebuffer,sli_offset,streamFile,&done);
if (!done) goto fail;
@ -69,10 +72,25 @@ VGMSTREAM * init_vgmstream_sli_ogg(STREAMFILE *streamFile) {
}
}
/* a completely different format, also with .sli extension and can be handled similarly */
if ((foundptr=strstr(linebuffer,"To="))!=NULL && isdigit(foundptr[3])) {
loop_to = strtol(foundptr+3,&endptr,10);
if (*endptr != ';') {
loop_to = -1;
}
}
if ((foundptr=strstr(linebuffer,"From="))!=NULL && isdigit(foundptr[5])) {
loop_from = strtol(foundptr+5,&endptr,10);
if (*endptr != ';') {
loop_from = -1;
}
}
sli_offset += bytes_read;
}
if (loop_start != -1 && loop_length != -1) {
if ((loop_start != -1 && loop_length != -1) ||
(loop_to != -1 && loop_from != -1)) {
/* install loops */
if (!vgmstream->loop_flag) {
vgmstream->loop_flag = 1;
@ -81,11 +99,16 @@ VGMSTREAM * init_vgmstream_sli_ogg(STREAMFILE *streamFile) {
if (!vgmstream->loop_ch) goto fail;
}
vgmstream->loop_start_sample = loop_start;
vgmstream->loop_end_sample = loop_start+loop_length;
}
vgmstream->meta_type = meta_OGG_SLI;
if (loop_to != -1 && loop_from != -1) {
vgmstream->loop_start_sample = loop_to;
vgmstream->loop_end_sample = loop_from;
vgmstream->meta_type = meta_OGG_SLI2;
} else {
vgmstream->loop_start_sample = loop_start;
vgmstream->loop_end_sample = loop_start+loop_length;
vgmstream->meta_type = meta_OGG_SLI;
}
} else goto fail; /* if there's no loop points the .sli wasn't valid */
return vgmstream;

5
src/vgmstream.c
View File

@ -1253,7 +1253,10 @@ void describe_vgmstream(VGMSTREAM * vgmstream, char * desc, int length) {
snprintf(temp,TEMPSIZE,"Ogg Vorbis");
break;
case meta_OGG_SLI:
snprintf(temp,TEMPSIZE,"Ogg Vorbis with .sli for looping");
snprintf(temp,TEMPSIZE,"Ogg Vorbis with .sli (start,length) for looping");
break;
case meta_OGG_SLI2:
snprintf(temp,TEMPSIZE,"Ogg Vorbis with .sli (from,to) for looping");
break;
#endif
case meta_DSP_SADB:

1
src/vgmstream.h
View File

@ -217,6 +217,7 @@ typedef enum {
#ifdef VGM_USE_VORBIS
meta_ogg_vorbis, /* ogg vorbis */
meta_OGG_SLI, /* Ogg Vorbis file w/ companion .sli for looping */
meta_OGG_SLI2, /* Ogg Vorbis file w/ different styled .sli for looping */
#endif
meta_AIFC, /* Audio Interchange File Format AIFF-C */