diff options
| -rw-r--r-- | media/libvorbis/lib/vorbis_codebook.c | 48 |
1 files changed, 10 insertions, 38 deletions
diff --git a/media/libvorbis/lib/vorbis_codebook.c b/media/libvorbis/lib/vorbis_codebook.c index 72f8a17a3..49b7b09b2 100644 --- a/media/libvorbis/lib/vorbis_codebook.c +++ b/media/libvorbis/lib/vorbis_codebook.c @@ -387,7 +387,7 @@ long vorbis_book_decodevs_add(codebook *book,float *a,oggpack_buffer *b,int n){ t[i] = book->valuelist+entry[i]*book->dim; } for(i=0,o=0;i<book->dim;i++,o+=step) - for (j=0;j<step;j++) + for (j=0;o+j<n && j<step;j++) a[o+j]+=t[j][i]; } return(0); @@ -399,41 +399,12 @@ long vorbis_book_decodev_add(codebook *book,float *a,oggpack_buffer *b,int n){ int i,j,entry; float *t; - if(book->dim>8){ - for(i=0;i<n;){ - entry = decode_packed_entry_number(book,b); - if(entry==-1)return(-1); - t = book->valuelist+entry*book->dim; - for (j=0;j<book->dim;) - a[i++]+=t[j++]; - } - }else{ - for(i=0;i<n;){ - entry = decode_packed_entry_number(book,b); - if(entry==-1)return(-1); - t = book->valuelist+entry*book->dim; - j=0; - switch((int)book->dim){ - case 8: - a[i++]+=t[j++]; - case 7: - a[i++]+=t[j++]; - case 6: - a[i++]+=t[j++]; - case 5: - a[i++]+=t[j++]; - case 4: - a[i++]+=t[j++]; - case 3: - a[i++]+=t[j++]; - case 2: - a[i++]+=t[j++]; - case 1: - a[i++]+=t[j++]; - case 0: - break; - } - } + for(i=0;i<n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + t = book->valuelist+entry*book->dim; + for(j=0;i<n && j<book->dim;) + a[i++]+=t[j++]; } } return(0); @@ -471,12 +442,13 @@ long vorbis_book_decodevv_add(codebook *book,float **a,long offset,int ch, long i,j,entry; int chptr=0; if(book->used_entries>0){ - for(i=offset/ch;i<(offset+n)/ch;){ + int m=(offset+n)/ch; + for(i=offset/ch;i<m;){ entry = decode_packed_entry_number(book,b); if(entry==-1)return(-1); { const float *t = book->valuelist+entry*book->dim; - for (j=0;j<book->dim;j++){ + for (j=0;i<m && j<book->dim;j++){ a[chptr++][i]+=t[j]; if(chptr==ch){ chptr=0; |