--- a/misc/libtremor/tremor/res012.c Sun Oct 28 03:48:37 2012 +0100
+++ b/misc/libtremor/tremor/res012.c Sun Oct 28 04:00:07 2012 +0100
@@ -6,7 +6,7 @@
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
- * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2003 *
+ * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
* *
********************************************************************
@@ -21,15 +21,50 @@
#include "ogg.h"
#include "ivorbiscodec.h"
#include "codec_internal.h"
+#include "registry.h"
#include "codebook.h"
#include "misc.h"
#include "os.h"
+#include "block.h"
-void res_clear_info(vorbis_info_residue *info){
+typedef struct {
+ vorbis_info_residue0 *info;
+ int map;
+
+ int parts;
+ int stages;
+ codebook *fullbooks;
+ codebook *phrasebook;
+ codebook ***partbooks;
+
+ int partvals;
+ int **decodemap;
+
+} vorbis_look_residue0;
+
+void res0_free_info(vorbis_info_residue *i){
+ vorbis_info_residue0 *info=(vorbis_info_residue0 *)i;
if(info){
- if(info->stagemasks)_ogg_free(info->stagemasks);
- if(info->stagebooks)_ogg_free(info->stagebooks);
memset(info,0,sizeof(*info));
+ _ogg_free(info);
+ }
+}
+
+void res0_free_look(vorbis_look_residue *i){
+ int j;
+ if(i){
+
+ vorbis_look_residue0 *look=(vorbis_look_residue0 *)i;
+
+ for(j=0;j<look->parts;j++)
+ if(look->partbooks[j])_ogg_free(look->partbooks[j]);
+ _ogg_free(look->partbooks);
+ for(j=0;j<look->partvals;j++)
+ _ogg_free(look->decodemap[j]);
+ _ogg_free(look->decodemap);
+
+ memset(look,0,sizeof(*look));
+ _ogg_free(look);
}
}
@@ -42,193 +77,266 @@
return(ret);
}
+static int icount(unsigned int v){
+ int ret=0;
+ while(v){
+ ret+=v&1;
+ v>>=1;
+ }
+ return(ret);
+}
+
/* vorbis_info is for range checking */
-int res_unpack(vorbis_info_residue *info,
- vorbis_info *vi,oggpack_buffer *opb){
- int j,k;
+vorbis_info_residue *res0_unpack(vorbis_info *vi,oggpack_buffer *opb){
+ int j,acc=0;
+ vorbis_info_residue0 *info=(vorbis_info_residue0 *)_ogg_calloc(1,sizeof(*info));
codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
- memset(info,0,sizeof(*info));
- info->type=oggpack_read(opb,16);
- if(info->type>2 || info->type<0)goto errout;
info->begin=oggpack_read(opb,24);
info->end=oggpack_read(opb,24);
info->grouping=oggpack_read(opb,24)+1;
info->partitions=oggpack_read(opb,6)+1;
info->groupbook=oggpack_read(opb,8);
- if(info->groupbook>=ci->books)goto errout;
-
- info->stagemasks=_ogg_malloc(info->partitions*sizeof(*info->stagemasks));
- info->stagebooks=_ogg_malloc(info->partitions*8*sizeof(*info->stagebooks));
for(j=0;j<info->partitions;j++){
int cascade=oggpack_read(opb,3);
if(oggpack_read(opb,1))
cascade|=(oggpack_read(opb,5)<<3);
- info->stagemasks[j]=cascade;
+ info->secondstages[j]=cascade;
+
+ acc+=icount(cascade);
}
+ for(j=0;j<acc;j++)
+ info->booklist[j]=oggpack_read(opb,8);
+
+ if(info->groupbook>=ci->books)goto errout;
+ for(j=0;j<acc;j++)
+ if(info->booklist[j]>=ci->books)goto errout;
+
+ return(info);
+ errout:
+ res0_free_info(info);
+ return(NULL);
+}
+
+vorbis_look_residue *res0_look(vorbis_dsp_state *vd,vorbis_info_mode *vm,
+ vorbis_info_residue *vr){
+ vorbis_info_residue0 *info=(vorbis_info_residue0 *)vr;
+ vorbis_look_residue0 *look=(vorbis_look_residue0 *)_ogg_calloc(1,sizeof(*look));
+ codec_setup_info *ci=(codec_setup_info *)vd->vi->codec_setup;
- for(j=0;j<info->partitions;j++){
- for(k=0;k<8;k++){
- if((info->stagemasks[j]>>k)&1){
- unsigned char book=oggpack_read(opb,8);
- if(book>=ci->books)goto errout;
- info->stagebooks[j*8+k]=book;
- if(k+1>info->stages)info->stages=k+1;
- }else
- info->stagebooks[j*8+k]=0xff;
+ int j,k,acc=0;
+ int dim;
+ int maxstage=0;
+ look->info=info;
+ look->map=vm->mapping;
+
+ look->parts=info->partitions;
+ look->fullbooks=ci->fullbooks;
+ look->phrasebook=ci->fullbooks+info->groupbook;
+ dim=look->phrasebook->dim;
+
+ look->partbooks=(codebook ***)_ogg_calloc(look->parts,sizeof(*look->partbooks));
+
+ for(j=0;j<look->parts;j++){
+ int stages=ilog(info->secondstages[j]);
+ if(stages){
+ if(stages>maxstage)maxstage=stages;
+ look->partbooks[j]=(codebook **)_ogg_calloc(stages,sizeof(*look->partbooks[j]));
+ for(k=0;k<stages;k++)
+ if(info->secondstages[j]&(1<<k)){
+ look->partbooks[j][k]=ci->fullbooks+info->booklist[acc++];
+#ifdef TRAIN_RES
+ look->training_data[k][j]=calloc(look->partbooks[j][k]->entries,
+ sizeof(***look->training_data));
+#endif
+ }
}
}
- if(oggpack_eop(opb))goto errout;
+ look->partvals=look->parts;
+ for(j=1;j<dim;j++)look->partvals*=look->parts;
+ look->stages=maxstage;
+ look->decodemap=(int **)_ogg_malloc(look->partvals*sizeof(*look->decodemap));
+ for(j=0;j<look->partvals;j++){
+ long val=j;
+ long mult=look->partvals/look->parts;
+ look->decodemap[j]=(int *)_ogg_malloc(dim*sizeof(*look->decodemap[j]));
+ for(k=0;k<dim;k++){
+ long deco=val/mult;
+ val-=deco*mult;
+ mult/=look->parts;
+ look->decodemap[j][k]=deco;
+ }
+ }
- return 0;
- errout:
- res_clear_info(info);
- return 1;
+ return(look);
}
-int res_inverse(vorbis_dsp_state *vd,vorbis_info_residue *info,
- ogg_int32_t **in,int *nonzero,int ch){
-
- int i,j,k,s,used=0;
- codec_setup_info *ci=(codec_setup_info *)vd->vi->codec_setup;
- codebook *phrasebook=ci->book_param+info->groupbook;
+
+/* a truncated packet here just means 'stop working'; it's not an error */
+static int _01inverse(vorbis_block *vb,vorbis_look_residue *vl,
+ ogg_int32_t **in,int ch,
+ long (*decodepart)(codebook *, ogg_int32_t *,
+ oggpack_buffer *,int,int)){
+
+ long i,j,k,l,s;
+ vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
+ vorbis_info_residue0 *info=look->info;
+
+ /* move all this setup out later */
int samples_per_partition=info->grouping;
- int partitions_per_word=phrasebook->dim;
- int pcmend=ci->blocksizes[vd->W];
+ int partitions_per_word=look->phrasebook->dim;
+ int max=vb->pcmend>>1;
+ int end=(info->end<max?info->end:max);
+ int n=end-info->begin;
- if(info->type<2){
- int max=pcmend>>1;
- int end=(info->end<max?info->end:max);
- int n=end-info->begin;
+ if(n>0){
+ int partvals=n/samples_per_partition;
+ int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
+ int ***partword=(int ***)alloca(ch*sizeof(*partword));
+
+ for(j=0;j<ch;j++)
+ partword[j]=(int **)_vorbis_block_alloc(vb,partwords*sizeof(*partword[j]));
- if(n>0){
- int partvals=n/samples_per_partition;
- int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
+ for(s=0;s<look->stages;s++){
- for(i=0;i<ch;i++)
- if(nonzero[i])
- in[used++]=in[i];
- ch=used;
-
- if(used){
+ /* each loop decodes on partition codeword containing
+ partitions_pre_word partitions */
+ for(i=0,l=0;i<partvals;l++){
+ if(s==0){
+ /* fetch the partition word for each channel */
+ for(j=0;j<ch;j++){
+ int temp=vorbis_book_decode(look->phrasebook,&vb->opb);
+ if(temp==-1)goto eopbreak;
+ partword[j][l]=look->decodemap[temp];
+ if(partword[j][l]==NULL)goto errout;
+ }
+ }
- char **partword=(char **)alloca(ch*sizeof(*partword));
- for(j=0;j<ch;j++)
- partword[j]=(char *)alloca(partwords*partitions_per_word*
- sizeof(*partword[j]));
-
- for(s=0;s<info->stages;s++){
-
- for(i=0;i<partvals;){
- if(s==0){
- /* fetch the partition word for each channel */
-
- partword[0][i+partitions_per_word-1]=1;
- for(k=partitions_per_word-2;k>=0;k--)
- partword[0][i+k]=partword[0][i+k+1]*info->partitions;
-
- for(j=1;j<ch;j++)
- for(k=partitions_per_word-1;k>=0;k--)
- partword[j][i+k]=partword[j-1][i+k];
-
- for(j=0;j<ch;j++){
- int temp=vorbis_book_decode(phrasebook,&vd->opb);
- if(oggpack_eop(&vd->opb))goto eopbreak;
-
- /* this can be done quickly in assembly due to the quotient
- always being at most six bits */
- for(k=0;k<partitions_per_word;k++){
- ogg_uint32_t div=partword[j][i+k];
- partword[j][i+k]=temp/div;
- temp-=partword[j][i+k]*div;
- }
-
+ /* now we decode residual values for the partitions */
+ for(k=0;k<partitions_per_word && i<partvals;k++,i++)
+ for(j=0;j<ch;j++){
+ long offset=info->begin+i*samples_per_partition;
+ if(info->secondstages[partword[j][l][k]]&(1<<s)){
+ codebook *stagebook=look->partbooks[partword[j][l][k]][s];
+ if(stagebook){
+ if(decodepart(stagebook,in[j]+offset,&vb->opb,
+ samples_per_partition,-8)==-1)goto eopbreak;
}
}
-
- /* now we decode residual values for the partitions */
- for(k=0;k<partitions_per_word && i<partvals;k++,i++)
- for(j=0;j<ch;j++){
- long offset=info->begin+i*samples_per_partition;
- if(info->stagemasks[partword[j][i]]&(1<<s)){
- codebook *stagebook=ci->book_param+
- info->stagebooks[(partword[j][i]<<3)+s];
- if(info->type){
- if(vorbis_book_decodev_add(stagebook,in[j]+offset,&vd->opb,
- samples_per_partition,-8)==-1)
- goto eopbreak;
- }else{
- if(vorbis_book_decodevs_add(stagebook,in[j]+offset,&vd->opb,
- samples_per_partition,-8)==-1)
- goto eopbreak;
- }
- }
- }
}
- }
- }
- }
- }else{
- int max=(pcmend*ch)>>1;
- int end=(info->end<max?info->end:max);
- int n=end-info->begin;
-
- if(n>0){
- int partvals=n/samples_per_partition;
- int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
-
- char *partword=
- (char *)alloca(partwords*partitions_per_word*sizeof(*partword));
- int beginoff=info->begin/ch;
-
- for(i=0;i<ch;i++)if(nonzero[i])break;
- if(i==ch)return(0); /* no nonzero vectors */
-
- samples_per_partition/=ch;
-
- for(s=0;s<info->stages;s++){
- for(i=0;i<partvals;){
-
- if(s==0){
- int temp;
- partword[i+partitions_per_word-1]=1;
- for(k=partitions_per_word-2;k>=0;k--)
- partword[i+k]=partword[i+k+1]*info->partitions;
-
- /* fetch the partition word */
- temp=vorbis_book_decode(phrasebook,&vd->opb);
- if(temp==-1)goto eopbreak;
-
- /* this can be done quickly in assembly due to the quotient
- always being at most six bits */
- for(k=0;k<partitions_per_word;k++){
- ogg_uint32_t div=partword[i+k];
- partword[i+k]=temp/div;
- temp-=partword[i+k]*div;
- }
- }
-
- /* now we decode residual values for the partitions */
- for(k=0;k<partitions_per_word && i<partvals;k++,i++){
- if(info->stagemasks[partword[i]]&(1<<s)){
- codebook *stagebook=ci->book_param+
- info->stagebooks[(partword[i]<<3)+s];
- if(vorbis_book_decodevv_add(stagebook,in,
- i*samples_per_partition+beginoff,ch,
- &vd->opb,
- samples_per_partition,-8)==-1)
- goto eopbreak;
- }
- }
- }
}
}
}
errout:
eopbreak:
-
- return 0;
-}
+ return(0);
+}
+
+int res0_inverse(vorbis_block *vb,vorbis_look_residue *vl,
+ ogg_int32_t **in,int *nonzero,int ch){
+ int i,used=0;
+ for(i=0;i<ch;i++)
+ if(nonzero[i])
+ in[used++]=in[i];
+ if(used)
+ return(_01inverse(vb,vl,in,used,vorbis_book_decodevs_add));
+ else
+ return(0);
+}
+
+int res1_inverse(vorbis_block *vb,vorbis_look_residue *vl,
+ ogg_int32_t **in,int *nonzero,int ch){
+ int i,used=0;
+ for(i=0;i<ch;i++)
+ if(nonzero[i])
+ in[used++]=in[i];
+ if(used)
+ return(_01inverse(vb,vl,in,used,vorbis_book_decodev_add));
+ else
+ return(0);
+}
+
+/* duplicate code here as speed is somewhat more important */
+int res2_inverse(vorbis_block *vb,vorbis_look_residue *vl,
+ ogg_int32_t **in,int *nonzero,int ch){
+ long i,k,l,s;
+ vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
+ vorbis_info_residue0 *info=look->info;
+
+ /* move all this setup out later */
+ int samples_per_partition=info->grouping;
+ int partitions_per_word=look->phrasebook->dim;
+ int max=(vb->pcmend*ch)>>1;
+ int end=(info->end<max?info->end:max);
+ int n=end-info->begin;
+ if(n>0){
+
+ int partvals=n/samples_per_partition;
+ int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
+ int **partword=(int **)_vorbis_block_alloc(vb,partwords*sizeof(*partword));
+ int beginoff=info->begin/ch;
+
+ for(i=0;i<ch;i++)if(nonzero[i])break;
+ if(i==ch)return(0); /* no nonzero vectors */
+
+ samples_per_partition/=ch;
+
+ for(s=0;s<look->stages;s++){
+ for(i=0,l=0;i<partvals;l++){
+
+ if(s==0){
+ /* fetch the partition word */
+ int temp=vorbis_book_decode(look->phrasebook,&vb->opb);
+ if(temp==-1)goto eopbreak;
+ partword[l]=look->decodemap[temp];
+ if(partword[l]==NULL)goto errout;
+ }
+
+ /* now we decode residual values for the partitions */
+ for(k=0;k<partitions_per_word && i<partvals;k++,i++)
+ if(info->secondstages[partword[l][k]]&(1<<s)){
+ codebook *stagebook=look->partbooks[partword[l][k]][s];
+
+ if(stagebook){
+ if(vorbis_book_decodevv_add(stagebook,in,
+ i*samples_per_partition+beginoff,ch,
+ &vb->opb,
+ samples_per_partition,-8)==-1)
+ goto eopbreak;
+ }
+ }
+ }
+ }
+ }
+ errout:
+ eopbreak:
+ return(0);
+}
+
+
+vorbis_func_residue residue0_exportbundle={
+ &res0_unpack,
+ &res0_look,
+ &res0_free_info,
+ &res0_free_look,
+ &res0_inverse
+};
+
+vorbis_func_residue residue1_exportbundle={
+ &res0_unpack,
+ &res0_look,
+ &res0_free_info,
+ &res0_free_look,
+ &res1_inverse
+};
+
+vorbis_func_residue residue2_exportbundle={
+ &res0_unpack,
+ &res0_look,
+ &res0_free_info,
+ &res0_free_look,
+ &res2_inverse
+};