// Analysis side code, but directly related to blocking. Thus it's
// here and not in analysis.c (which is for analysis transforms only).
// The init is here because some of it is shared
int init(Info vi, bool encp)
{
//memset(v,0,sizeof(vorbis_dsp_state));
this.vi=vi;
modebits=ilog2(vi.modes);
transform[0]=new Object[VI_TRANSFORMB];
transform[1]=new Object[VI_TRANSFORMB];
// MDCT is tranform 0
transform[0][0]=new Mdct();
transform[1][0]=new Mdct();
((Mdct)transform[0][0]).init(vi.blocksizes[0]);
((Mdct)transform[1][0]).init(vi.blocksizes[1]);
wnd[0][0][0]=new float[VI_WINDOWB][];
wnd[0][0][1]=wnd[0][0][0];
wnd[0][1][0]=wnd[0][0][0];
wnd[0][1][1]=wnd[0][0][0];
wnd[1][0][0]=new float[VI_WINDOWB][];
wnd[1][0][1]=new float[VI_WINDOWB][];
wnd[1][1][0]=new float[VI_WINDOWB][];
wnd[1][1][1]=new float[VI_WINDOWB][];
for(int i=0; i<VI_WINDOWB; i++) {
wnd[0][0][0][i]=
window(i,vi.blocksizes[0],vi.blocksizes[0]/2,vi.blocksizes[0]/2);
wnd[1][0][0][i]=
window(i,vi.blocksizes[1],vi.blocksizes[0]/2,vi.blocksizes[0]/2);
wnd[1][0][1][i]=
window(i,vi.blocksizes[1],vi.blocksizes[0]/2,vi.blocksizes[1]/2);
wnd[1][1][0][i]=
window(i,vi.blocksizes[1],vi.blocksizes[1]/2,vi.blocksizes[0]/2);
wnd[1][1][1][i]=
window(i,vi.blocksizes[1],vi.blocksizes[1]/2,vi.blocksizes[1]/2);
}
// if(encp){ // encode/decode differ here
// // finish the codebooks
// fullbooks=new CodeBook[vi.books];
// for(int i=0;i<vi.books;i++){
// fullbooks[i]=new CodeBook();
// fullbooks[i].init_encode(vi.book_param[i]);
// }
// analysisp=1;
// }
// else{
// finish the codebooks
fullbooks=new CodeBook[vi.books];
for(int i=0; i<vi.books; i++) {
fullbooks[i]=new CodeBook();
fullbooks[i].init_decode(vi.book_param[i]);
}
// }
// initialize the storage vectors to a decent size greater than the
// minimum
pcm_storage=8192; // we'll assume later that we have
// a minimum of twice the blocksize of
// accumulated samples in analysis
pcm=new float[vi.channels][];
//pcmret=new float[vi.channels][];
{
for(int i=0; i<vi.channels; i++) {
pcm[i]=new float[pcm_storage];
}
}
// all 1 (large block) or 0 (small block)
// explicitly set for the sake of clarity
lW=0; // previous window size
W=0; // current window size
// all vector indexes; multiples of samples_per_envelope_step
centerW=vi.blocksizes[1]/2;
pcm_current=centerW;
// initialize all the mapping/backend lookups
mode=new Object[vi.modes];
for(int i=0; i<vi.modes; i++) {
int mapnum=vi.mode_param[i].mapping;
int maptype=vi.map_type[mapnum];
mode[i]=FuncMapping.mapping_P[maptype].look(this,vi.mode_param[i],
vi.map_param[mapnum]);
}
return(0);
}
// Analysis side code, but directly related to blocking. Thus it's
// here and not in analysis.c (which is for analysis transforms only).
// The init is here because some of it is shared
int init(Info vi, bool encp)
{
//memset(v,0,sizeof(vorbis_dsp_state));
this.vi=vi;
modebits=ilog2(vi.modes);
transform[0]=new Object[VI_TRANSFORMB];
transform[1]=new Object[VI_TRANSFORMB];
// MDCT is tranform 0
transform[0][0]=new Mdct();
transform[1][0]=new Mdct();
((Mdct)transform[0][0]).init(vi.blocksizes[0]);
((Mdct)transform[1][0]).init(vi.blocksizes[1]);
wnd[0][0][0]=new float[VI_WINDOWB][];
wnd[0][0][1]=wnd[0][0][0];
wnd[0][1][0]=wnd[0][0][0];
wnd[0][1][1]=wnd[0][0][0];
wnd[1][0][0]=new float[VI_WINDOWB][];
wnd[1][0][1]=new float[VI_WINDOWB][];
wnd[1][1][0]=new float[VI_WINDOWB][];
wnd[1][1][1]=new float[VI_WINDOWB][];
for(int i=0; i<VI_WINDOWB; i++) {
wnd[0][0][0][i]=
window(i,vi.blocksizes[0],vi.blocksizes[0]/2,vi.blocksizes[0]/2);
wnd[1][0][0][i]=
window(i,vi.blocksizes[1],vi.blocksizes[0]/2,vi.blocksizes[0]/2);
wnd[1][0][1][i]=
window(i,vi.blocksizes[1],vi.blocksizes[0]/2,vi.blocksizes[1]/2);
wnd[1][1][0][i]=
window(i,vi.blocksizes[1],vi.blocksizes[1]/2,vi.blocksizes[0]/2);
wnd[1][1][1][i]=
window(i,vi.blocksizes[1],vi.blocksizes[1]/2,vi.blocksizes[1]/2);
}
// if(encp){ // encode/decode differ here
// // finish the codebooks
// fullbooks=new CodeBook[vi.books];
// for(int i=0;i<vi.books;i++){
// fullbooks[i]=new CodeBook();
// fullbooks[i].init_encode(vi.book_param[i]);
// }
// analysisp=1;
// }
// else{
// finish the codebooks
fullbooks=new CodeBook[vi.books];
for(int i=0; i<vi.books; i++) {
fullbooks[i]=new CodeBook();
fullbooks[i].init_decode(vi.book_param[i]);
}
// }
// initialize the storage vectors to a decent size greater than the
// minimum
pcm_storage=8192; // we'll assume later that we have
// a minimum of twice the blocksize of
// accumulated samples in analysis
pcm=new float[vi.channels][];
//pcmret=new float[vi.channels][];
{
for(int i=0; i<vi.channels; i++) {
pcm[i]=new float[pcm_storage];
}
}
// all 1 (large block) or 0 (small block)
// explicitly set for the sake of clarity
lW=0; // previous window size
W=0; // current window size
// all vector indexes; multiples of samples_per_envelope_step
centerW=vi.blocksizes[1]/2;
pcm_current=centerW;
// initialize all the mapping/backend lookups
mode=new Object[vi.modes];
for(int i=0; i<vi.modes; i++) {
int mapnum=vi.mode_param[i].mapping;
int maptype=vi.map_type[mapnum];
mode[i]=FuncMapping.mapping_P[maptype].look(this,vi.mode_param[i],
vi.map_param[mapnum]);
}
return(0);
}
