int vorbis_synthesis_init(vorbis_dsp_state *v,vorbis_info *vi){
int i;
codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
backend_lookup_state *b=NULL;
memset(v,0,sizeof(*v));
b=(backend_lookup_state *)(v->backend_state=_ogg_calloc(1,sizeof(*b)));
v->vi=vi;
b->modebits=ilog(ci->modes);
/* Vorbis I uses only window type 0 */
b->window[0]=_vorbis_window(0,ci->blocksizes[0]/2);
b->window[1]=_vorbis_window(0,ci->blocksizes[1]/2);
/* finish the codebooks */
if(!ci->fullbooks){
ci->fullbooks=(codebook *)_ogg_calloc(ci->books,sizeof(*ci->fullbooks));
for(i=0;i<ci->books;i++){
vorbis_book_init_decode(ci->fullbooks+i,ci->book_param[i]);
/* decode codebooks are now standalone after init */
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
v->pcm_storage=ci->blocksizes[1];
v->pcm=(ogg_int32_t **)_ogg_malloc(vi->channels*sizeof(*v->pcm));
v->pcmret=(ogg_int32_t **)_ogg_malloc(vi->channels*sizeof(*v->pcmret));
for(i=0;i<vi->channels;i++)
v->pcm[i]=(ogg_int32_t *)_ogg_calloc(v->pcm_storage,sizeof(*v->pcm[i]));
/* all 1 (large block) or 0 (small block) */
/* explicitly set for the sake of clarity */
v->lW=0; /* previous window size */
v->W=0; /* current window size */
/* all vector indexes */
v->centerW=ci->blocksizes[1]/2;
v->pcm_current=v->centerW;
/* initialize all the mapping/backend lookups */
b->mode=(vorbis_look_mapping **)_ogg_calloc(ci->modes,sizeof(*b->mode));
for(i=0;i<ci->modes;i++){
int mapnum=ci->mode_param[i]->mapping;
int maptype=ci->map_type[mapnum];
b->mode[i]=_mapping_P[maptype]->look(v,ci->mode_param[i],
ci->map_param[mapnum]);
}
v->pcm_returned=-1;
v->granulepos=-1;
v->sequence=-1;
return(0);
}
static int _vds_init(vorbis_dsp_state *v,vorbis_info *vi){
int i;
long b_size[2];
codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
private_state *b=NULL;
if(ci==NULL) return 1;
memset(v,0,sizeof(*v));
b=(private_state *)(v->backend_state=_ogg_calloc(1,sizeof(*b)));
v->vi=vi;
b->modebits=ilog(ci->modes);
#ifdef TREMOR_USE_IRAM
/* allocate IRAM buffer for the PCM data generated by synthesis */
iram_malloc_init();
v->floors = iram_malloc(vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
v->residues[0] = iram_malloc(vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
/* if we can get away with it, put a double buffer into IRAM too, so that
overlap-add runs iram-to-iram and we avoid needing to memcpy */
v->residues[1] = iram_malloc(vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
if (v->residues[1] == NULL)
v->saved = iram_malloc(vi->channels*ci->blocksizes[1]/4*sizeof(ogg_int32_t));
#endif
if (v->residues[0] == NULL) {
malloc_pointers[0] = _ogg_malloc(vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
v->residues[0] = malloc_pointers[0];
}
if (v->residues[1] == NULL && v->saved == NULL) {
malloc_pointers[1] = _ogg_malloc(vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
v->residues[1] = malloc_pointers[1];
}
if (v->floors == NULL) {
malloc_pointers[2] = _ogg_malloc(vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
v->floors = malloc_pointers[2];
}
/* needed for the first overlap/add */
if (v->saved) {
memset(v->saved, 0, vi->channels*ci->blocksizes[1]/4*sizeof(ogg_int32_t));
for (i = 0; i < vi->channels; i++)
v->saved_ptr[i] = v->saved + i*ci->blocksizes[1]/4;
} else {
memset(v->residues[1], 0, vi->channels*ci->blocksizes[1]/2*sizeof(ogg_int32_t));
for (i = 0; i < vi->channels; i++)
v->saved_ptr[i] = v->residues[1] + i*ci->blocksizes[1]/2;
}
/* Vorbis I uses only window type 0 */
b_size[0]=ci->blocksizes[0]/2;
b_size[1]=ci->blocksizes[1]/2;
b->window[0]=_vorbis_window(0,b_size[0]);
b->window[1]=_vorbis_window(0,b_size[1]);
#ifdef TREMOR_USE_IRAM
/* allocate IRAM buffer for window tables too, if sufficient iram available */
/* give preference to the larger window over the smaller window
(on the assumption that both windows are equally likely used) */
LOOKUP_TNC *iramposw;
for(i=1; i>=0; i--){
iramposw=iram_malloc(b_size[i]*sizeof(LOOKUP_TNC));
if(iramposw!=NULL) {
memcpy(iramposw, b->window[i], b_size[i]*sizeof(LOOKUP_TNC));
b->window[i]=iramposw;
}
}
#endif
/* finish the codebooks */
if(!ci->fullbooks){
ci->fullbooks=(codebook *)_ogg_calloc(ci->books,sizeof(*ci->fullbooks));
for(i=0;i<ci->books;i++){
if(ci->book_param[i]==NULL)
goto abort_books;
if(vorbis_book_init_decode(ci->fullbooks+i,ci->book_param[i]))
goto abort_books;
/* decode codebooks are now standalone after init */
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
v->pcm_storage=ci->blocksizes[1];
v->pcmret=_pcmret;
v->pcmb=_pcmbp;
_pcmbp[0]=NULL;
_pcmbp[1]=NULL;
/* all 1 (large block) or 0 (small block) */
/* explicitly set for the sake of clarity */
v->lW=0; /* previous window size */
v->W=0; /* current window size */
/* initialize all the mapping/backend lookups */
b->mode=(vorbis_look_mapping **)_ogg_calloc(ci->modes,sizeof(*b->mode));
for(i=0;i<ci->modes;i++){
int mapnum=ci->mode_param[i]->mapping;
int maptype=ci->map_type[mapnum];
b->mode[i]=_mapping_P[maptype]->look(v,ci->mode_param[i],
ci->map_param[mapnum]);
}
return(0);
abort_books:
for(i=0;i<ci->books;i++){
if(ci->book_param[i]!=NULL){
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
vorbis_dsp_clear(v);
return -1;
}
static int _vds_shared_init(vorbis_dsp_state *v,vorbis_info *vi,int encp){
int i;
codec_setup_info *ci=vi->codec_setup;
private_state *b=NULL;
int hs;
if(ci==NULL) return 1;
hs=ci->halfrate_flag;
memset(v,0,sizeof(*v));
b=v->backend_state=_ogg_calloc(1,sizeof(*b));
v->vi=vi;
b->modebits=ilog2(ci->modes);
b->transform[0]=_ogg_calloc(VI_TRANSFORMB,sizeof(*b->transform[0]));
b->transform[1]=_ogg_calloc(VI_TRANSFORMB,sizeof(*b->transform[1]));
/* MDCT is tranform 0 */
b->transform[0][0]=_ogg_calloc(1,sizeof(mdct_lookup));
b->transform[1][0]=_ogg_calloc(1,sizeof(mdct_lookup));
mdct_init(b->transform[0][0],ci->blocksizes[0]>>hs);
mdct_init(b->transform[1][0],ci->blocksizes[1]>>hs);
/* Vorbis I uses only window type 0 */
b->window[0]=ilog2(ci->blocksizes[0])-6;
b->window[1]=ilog2(ci->blocksizes[1])-6;
if(encp){ /* encode/decode differ here */
/* analysis always needs an fft */
drft_init(&b->fft_look[0],ci->blocksizes[0]);
drft_init(&b->fft_look[1],ci->blocksizes[1]);
/* finish the codebooks */
if(!ci->fullbooks){
ci->fullbooks=_ogg_calloc(ci->books,sizeof(*ci->fullbooks));
for(i=0;i<ci->books;i++)
vorbis_book_init_encode(ci->fullbooks+i,ci->book_param[i]);
}
b->psy=_ogg_calloc(ci->psys,sizeof(*b->psy));
for(i=0;i<ci->psys;i++){
_vp_psy_init(b->psy+i,
ci->psy_param[i],
&ci->psy_g_param,
ci->blocksizes[ci->psy_param[i]->blockflag]/2,
vi->rate);
}
v->analysisp=1;
}else{
/* finish the codebooks */
if(!ci->fullbooks){
ci->fullbooks=_ogg_calloc(ci->books,sizeof(*ci->fullbooks));
for(i=0;i<ci->books;i++){
if(ci->book_param[i]==NULL)
goto abort_books;
if(vorbis_book_init_decode(ci->fullbooks+i,ci->book_param[i]))
goto abort_books;
/* decode codebooks are now standalone after init */
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
}
/* initialize the storage vectors. blocksize[1] is small for encode,
but the correct size for decode */
v->pcm_storage=ci->blocksizes[1];
v->pcm=_ogg_malloc(vi->channels*sizeof(*v->pcm));
v->pcmret=_ogg_malloc(vi->channels*sizeof(*v->pcmret));
{
int i;
for(i=0;i<vi->channels;i++)
v->pcm[i]=_ogg_calloc(v->pcm_storage,sizeof(*v->pcm[i]));
}
/* all 1 (large block) or 0 (small block) */
/* explicitly set for the sake of clarity */
v->lW=0; /* previous window size */
v->W=0; /* current window size */
/* all vector indexes */
v->centerW=ci->blocksizes[1]/2;
v->pcm_current=v->centerW;
/* initialize all the backend lookups */
b->flr=_ogg_calloc(ci->floors,sizeof(*b->flr));
b->residue=_ogg_calloc(ci->residues,sizeof(*b->residue));
for(i=0;i<ci->floors;i++)
b->flr[i]=_floor_P[ci->floor_type[i]]->
look(v,ci->floor_param[i]);
for(i=0;i<ci->residues;i++)
b->residue[i]=_residue_P[ci->residue_type[i]]->
look(v,ci->residue_param[i]);
return 0;
abort_books:
for(i=0;i<ci->books;i++){
if(ci->book_param[i]!=NULL){
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
vorbis_dsp_clear(v);
return -1;
}
static int _vds_shared_init(vorbis_dsp_state *v,vorbis_info *vi)
{
int i;
codec_setup_info *ci=vi->codec_setup;
backend_lookup_state *b=NULL;
_ogg_memset(v,0,sizeof(*v));
b=v->backend_state=_ogg_calloc(1,sizeof(*b));
if(!b)
return -1;
v->vi=vi;
b->modebits=ilog2(ci->modes);
b->transform[0]=oggdec_mdct_init(ci->blocksizes[0]);
b->transform[1]=oggdec_mdct_init(ci->blocksizes[1]);
if(!b->transform[0] || !b->transform[1])
return -1;
b->window[0]=_vorbis_window_get(ci->blocksizes[0]/2);
b->window[1]=_vorbis_window_get(ci->blocksizes[1]/2);
if(!b->window[0] || !b->window[1])
return -1;
if(!ci->fullbooks){
ci->fullbooks=_ogg_calloc(ci->books,sizeof(*ci->fullbooks));
for(i=0;i<ci->books;i++){
if(vorbis_book_init_decode(ci->fullbooks+i,ci->book_param[i])<0)
return -1;
}
for(i=0;i<ci->books;i++){
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
v->pcm_storage=ci->blocksizes[1];
v->pcm=_ogg_malloc(vi->channels*sizeof(*v->pcm));
v->pcmret=_ogg_malloc(vi->channels*sizeof(*v->pcmret));
if(!v->pcm || !v->pcmret)
return -1;
for(i=0;i<vi->channels;i++){
v->pcm[i]=_ogg_malloc(v->pcm_storage*sizeof(*v->pcm[i]));
if(!v->pcm[i])
return -1;
}
b->flr=_ogg_calloc(ci->floors,sizeof(*b->flr));
b->residue=_ogg_calloc(ci->residues,sizeof(*b->residue));
if(!b->flr || !b->residue)
return -1;
for(i=0;i<ci->floors;i++)
b->flr[i]=_floor_P[ci->floor_type[i]]->look(v,ci->floor_param[i]);
for(i=0;i<ci->residues;i++)
b->residue[i]=_residue_P[ci->residue_type[i]]->look(v,ci->residue_param[i]);
return(0);
}
static int _vds_init(vorbis_dsp_state *v,vorbis_info *vi){
int i;
codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
private_state *b=NULL;
if(ci==NULL) return 1;
memset(v,0,sizeof(*v));
b=(private_state *)(v->backend_state=calloc(1,sizeof(*b)));
v->vi=vi;
b->modebits=ilog(ci->modes);
/* Vorbis I uses only window type 0 */
b->window[0]=_vorbis_window(0,ci->blocksizes[0]/2);
b->window[1]=_vorbis_window(0,ci->blocksizes[1]/2);
/* finish the codebooks */
if(!ci->fullbooks){
ci->fullbooks=(codebook *)calloc(ci->books,sizeof(*ci->fullbooks));
for(i=0;i<ci->books;i++){
if(ci->book_param[i]==NULL)
goto abort_books;
if(vorbis_book_init_decode(ci->fullbooks+i,ci->book_param[i]))
goto abort_books;
/* decode codebooks are now standalone after init */
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
v->pcm_storage=ci->blocksizes[1];
v->pcm=(int32_t **)malloc(vi->channels*sizeof(*v->pcm));
v->pcmret=(int32_t **)malloc(vi->channels*sizeof(*v->pcmret));
for(i=0;i<vi->channels;i++)
v->pcm[i]=(int32_t *)calloc(v->pcm_storage,sizeof(*v->pcm[i]));
/* all 1 (large block) or 0 (small block) */
/* explicitly set for the sake of clarity */
v->lW=0; /* previous window size */
v->W=0; /* current window size */
/* initialize all the mapping/backend lookups */
b->mode=(vorbis_look_mapping **)calloc(ci->modes,sizeof(*b->mode));
for(i=0;i<ci->modes;i++){
int mapnum=ci->mode_param[i]->mapping;
int maptype=ci->map_type[mapnum];
b->mode[i]=_mapping_P[maptype]->look(v,ci->mode_param[i],
ci->map_param[mapnum]);
}
return 0;
abort_books:
for(i=0;i<ci->books;i++){
if(ci->book_param[i]!=NULL){
vorbis_staticbook_destroy(ci->book_param[i]);
ci->book_param[i]=NULL;
}
}
vorbis_dsp_clear(v);
return -1;
}
static int _vds_shared_init(vorbis_dsp_state *v,vorbis_info *vi,int encp){
int i;
codec_setup_info *ci=vi->codec_setup;
backend_lookup_state *b=NULL;
memset(v,0,sizeof(*v));
b=v->backend_state=_ogg_calloc(1,sizeof(*b));
v->vi=vi;
b->modebits=ilog2(ci->modes);
b->transform[0]=_ogg_calloc(VI_TRANSFORMB,sizeof(*b->transform[0]));
b->transform[1]=_ogg_calloc(VI_TRANSFORMB,sizeof(*b->transform[1]));
/* MDCT is tranform 0 */
b->transform[0][0]=_ogg_calloc(1,sizeof(mdct_lookup));
b->transform[1][0]=_ogg_calloc(1,sizeof(mdct_lookup));
mdct_init(b->transform[0][0],ci->blocksizes[0]);
mdct_init(b->transform[1][0],ci->blocksizes[1]);
b->window[0][0][0]=_ogg_calloc(VI_WINDOWB,sizeof(*b->window[0][0][0]));
b->window[0][0][1]=b->window[0][0][0];
b->window[0][1][0]=b->window[0][0][0];
b->window[0][1][1]=b->window[0][0][0];
b->window[1][0][0]=_ogg_calloc(VI_WINDOWB,sizeof(*b->window[1][0][0]));
b->window[1][0][1]=_ogg_calloc(VI_WINDOWB,sizeof(*b->window[1][0][1]));
b->window[1][1][0]=_ogg_calloc(VI_WINDOWB,sizeof(*b->window[1][1][0]));
b->window[1][1][1]=_ogg_calloc(VI_WINDOWB,sizeof(*b->window[1][1][1]));
for(i=0;i<VI_WINDOWB;i++){
b->window[0][0][0][i]=
_vorbis_window(i,ci->blocksizes[0],ci->blocksizes[0]/2,ci->blocksizes[0]/2);
b->window[1][0][0][i]=
_vorbis_window(i,ci->blocksizes[1],ci->blocksizes[0]/2,ci->blocksizes[0]/2);
b->window[1][0][1][i]=
_vorbis_window(i,ci->blocksizes[1],ci->blocksizes[0]/2,ci->blocksizes[1]/2);
b->window[1][1][0][i]=
_vorbis_window(i,ci->blocksizes[1],ci->blocksizes[1]/2,ci->blocksizes[0]/2);
b->window[1][1][1][i]=
_vorbis_window(i,ci->blocksizes[1],ci->blocksizes[1]/2,ci->blocksizes[1]/2);
}
if(encp){ /* encode/decode differ here */
/* finish the codebooks */
b->fullbooks=_ogg_calloc(ci->books,sizeof(*b->fullbooks));
for(i=0;i<ci->books;i++)
vorbis_book_init_encode(b->fullbooks+i,ci->book_param[i]);
v->analysisp=1;
}else{
/* finish the codebooks */
b->fullbooks=_ogg_calloc(ci->books,sizeof(*b->fullbooks));
for(i=0;i<ci->books;i++)
vorbis_book_init_decode(b->fullbooks+i,ci->book_param[i]);
}
/* initialize the storage vectors to a decent size greater than the
minimum */
v->pcm_storage=8192; /* we'll assume later that we have
a minimum of twice the blocksize of
accumulated samples in analysis */
v->pcm=_ogg_malloc(vi->channels*sizeof(*v->pcm));
v->pcmret=_ogg_malloc(vi->channels*sizeof(*v->pcmret));
{
int i;
for(i=0;i<vi->channels;i++)
v->pcm[i]=_ogg_calloc(v->pcm_storage,sizeof(*v->pcm[i]));
}
/* all 1 (large block) or 0 (small block) */
/* explicitly set for the sake of clarity */
v->lW=0; /* previous window size */
v->W=0; /* current window size */
/* all vector indexes */
v->centerW=ci->blocksizes[1]/2;
v->pcm_current=v->centerW;
/* initialize all the mapping/backend lookups */
b->mode=_ogg_calloc(ci->modes,sizeof(*b->mode));
for(i=0;i<ci->modes;i++){
int mapnum=ci->mode_param[i]->mapping;
int maptype=ci->map_type[mapnum];
b->mode[i]=_mapping_P[maptype]->look(v,ci->mode_param[i],
ci->map_param[mapnum]);
}
return(0);
}
