--- /dev/null
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: simple programmatic interface for encoder mode setup
+ last mod: $Id: vorbisenc.c 17028 2010-03-25 05:22:15Z xiphmont $
+
+ ********************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "vorbis/codec.h"
+#include "vorbis/vorbisenc.h"
+
+#include "codec_internal.h"
+
+#include "os.h"
+#include "misc.h"
+
+/* careful with this; it's using static array sizing to make managing
+ all the modes a little less annoying. If we use a residue backend
+ with > 12 partition types, or a different division of iteration,
+ this needs to be updated. */
+typedef struct {
+ const static_codebook *books[12][4];
+} static_bookblock;
+
+typedef struct {
+ int res_type;
+ int limit_type; /* 0 lowpass limited, 1 point stereo limited */
+ int grouping;
+ const vorbis_info_residue0 *res;
+ const static_codebook *book_aux;
+ const static_codebook *book_aux_managed;
+ const static_bookblock *books_base;
+ const static_bookblock *books_base_managed;
+} vorbis_residue_template;
+
+typedef struct {
+ const vorbis_info_mapping0 *map;
+ const vorbis_residue_template *res;
+} vorbis_mapping_template;
+
+typedef struct vp_adjblock{
+ int block[P_BANDS];
+} vp_adjblock;
+
+typedef struct {
+ int data[NOISE_COMPAND_LEVELS];
+} compandblock;
+
+/* high level configuration information for setting things up
+ step-by-step with the detailed vorbis_encode_ctl interface.
+ There's a fair amount of redundancy such that interactive setup
+ does not directly deal with any vorbis_info or codec_setup_info
+ initialization; it's all stored (until full init) in this highlevel
+ setup, then flushed out to the real codec setup structs later. */
+
+typedef struct {
+ int att[P_NOISECURVES];
+ float boost;
+ float decay;
+} att3;
+typedef struct { int data[P_NOISECURVES]; } adj3;
+
+typedef struct {
+ int pre[PACKETBLOBS];
+ int post[PACKETBLOBS];
+ float kHz[PACKETBLOBS];
+ float lowpasskHz[PACKETBLOBS];
+} adj_stereo;
+
+typedef struct {
+ int lo;
+ int hi;
+ int fixed;
+} noiseguard;
+typedef struct {
+ int data[P_NOISECURVES][17];
+} noise3;
+
+typedef struct {
+ int mappings;
+ const double *rate_mapping;
+ const double *quality_mapping;
+ int coupling_restriction;
+ long samplerate_min_restriction;
+ long samplerate_max_restriction;
+
+
+ const int *blocksize_short;
+ const int *blocksize_long;
+
+ const att3 *psy_tone_masteratt;
+ const int *psy_tone_0dB;
+ const int *psy_tone_dBsuppress;
+
+ const vp_adjblock *psy_tone_adj_impulse;
+ const vp_adjblock *psy_tone_adj_long;
+ const vp_adjblock *psy_tone_adj_other;
+
+ const noiseguard *psy_noiseguards;
+ const noise3 *psy_noise_bias_impulse;
+ const noise3 *psy_noise_bias_padding;
+ const noise3 *psy_noise_bias_trans;
+ const noise3 *psy_noise_bias_long;
+ const int *psy_noise_dBsuppress;
+
+ const compandblock *psy_noise_compand;
+ const double *psy_noise_compand_short_mapping;
+ const double *psy_noise_compand_long_mapping;
+
+ const int *psy_noise_normal_start[2];
+ const int *psy_noise_normal_partition[2];
+ const double *psy_noise_normal_thresh;
+
+ const int *psy_ath_float;
+ const int *psy_ath_abs;
+
+ const double *psy_lowpass;
+
+ const vorbis_info_psy_global *global_params;
+ const double *global_mapping;
+ const adj_stereo *stereo_modes;
+
+ const static_codebook *const *const *const floor_books;
+ const vorbis_info_floor1 *floor_params;
+ const int floor_mappings;
+ const int **floor_mapping_list;
+
+ const vorbis_mapping_template *maps;
+} ve_setup_data_template;
+
+/* a few static coder conventions */
+static const vorbis_info_mode _mode_template[2]={
+ {0,0,0,0},
+ {1,0,0,1}
+};
+
+static const vorbis_info_mapping0 _map_nominal[2]={
+ {1, {0,0}, {0}, {0}, 1,{0},{1}},
+ {1, {0,0}, {1}, {1}, 1,{0},{1}}
+};
+
+#include "modes/setup_44.h"
+#include "modes/setup_44u.h"
+#include "modes/setup_44p51.h"
+#include "modes/setup_32.h"
+#include "modes/setup_8.h"
+#include "modes/setup_11.h"
+#include "modes/setup_16.h"
+#include "modes/setup_22.h"
+#include "modes/setup_X.h"
+
+static const ve_setup_data_template *const setup_list[]={
+ &ve_setup_44_stereo,
+ &ve_setup_44_51,
+ &ve_setup_44_uncoupled,
+
+ &ve_setup_32_stereo,
+ &ve_setup_32_uncoupled,
+
+ &ve_setup_22_stereo,
+ &ve_setup_22_uncoupled,
+ &ve_setup_16_stereo,
+ &ve_setup_16_uncoupled,
+
+ &ve_setup_11_stereo,
+ &ve_setup_11_uncoupled,
+ &ve_setup_8_stereo,
+ &ve_setup_8_uncoupled,
+
+ &ve_setup_X_stereo,
+ &ve_setup_X_uncoupled,
+ &ve_setup_XX_stereo,
+ &ve_setup_XX_uncoupled,
+ 0
+};
+
+static void vorbis_encode_floor_setup(vorbis_info *vi,int s,
+ const static_codebook *const *const *const books,
+ const vorbis_info_floor1 *in,
+ const int *x){
+ int i,k,is=s;
+ vorbis_info_floor1 *f=_ogg_calloc(1,sizeof(*f));
+ codec_setup_info *ci=vi->codec_setup;
+
+ memcpy(f,in+x[is],sizeof(*f));
+
+ /* books */
+ {
+ int partitions=f->partitions;
+ int maxclass=-1;
+ int maxbook=-1;
+ for(i=0;i<partitions;i++)
+ if(f->partitionclass[i]>maxclass)maxclass=f->partitionclass[i];
+ for(i=0;i<=maxclass;i++){
+ if(f->class_book[i]>maxbook)maxbook=f->class_book[i];
+ f->class_book[i]+=ci->books;
+ for(k=0;k<(1<<f->class_subs[i]);k++){
+ if(f->class_subbook[i][k]>maxbook)maxbook=f->class_subbook[i][k];
+ if(f->class_subbook[i][k]>=0)f->class_subbook[i][k]+=ci->books;
+ }
+ }
+
+ for(i=0;i<=maxbook;i++)
+ ci->book_param[ci->books++]=(static_codebook *)books[x[is]][i];
+ }
+
+ /* for now, we're only using floor 1 */
+ ci->floor_type[ci->floors]=1;
+ ci->floor_param[ci->floors]=f;
+ ci->floors++;
+
+ return;
+}
+
+static void vorbis_encode_global_psych_setup(vorbis_info *vi,double s,
+ const vorbis_info_psy_global *in,
+ const double *x){
+ int i,is=s;
+ double ds=s-is;
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy_global *g=&ci->psy_g_param;
+
+ memcpy(g,in+(int)x[is],sizeof(*g));
+
+ ds=x[is]*(1.-ds)+x[is+1]*ds;
+ is=(int)ds;
+ ds-=is;
+ if(ds==0 && is>0){
+ is--;
+ ds=1.;
+ }
+
+ /* interpolate the trigger threshholds */
+ for(i=0;i<4;i++){
+ g->preecho_thresh[i]=in[is].preecho_thresh[i]*(1.-ds)+in[is+1].preecho_thresh[i]*ds;
+ g->postecho_thresh[i]=in[is].postecho_thresh[i]*(1.-ds)+in[is+1].postecho_thresh[i]*ds;
+ }
+ g->ampmax_att_per_sec=ci->hi.amplitude_track_dBpersec;
+ return;
+}
+
+static void vorbis_encode_global_stereo(vorbis_info *vi,
+ const highlevel_encode_setup *const hi,
+ const adj_stereo *p){
+ float s=hi->stereo_point_setting;
+ int i,is=s;
+ double ds=s-is;
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy_global *g=&ci->psy_g_param;
+
+ if(p){
+ memcpy(g->coupling_prepointamp,p[is].pre,sizeof(*p[is].pre)*PACKETBLOBS);
+ memcpy(g->coupling_postpointamp,p[is].post,sizeof(*p[is].post)*PACKETBLOBS);
+
+ if(hi->managed){
+ /* interpolate the kHz threshholds */
+ for(i=0;i<PACKETBLOBS;i++){
+ float kHz=p[is].kHz[i]*(1.-ds)+p[is+1].kHz[i]*ds;
+ g->coupling_pointlimit[0][i]=kHz*1000./vi->rate*ci->blocksizes[0];
+ g->coupling_pointlimit[1][i]=kHz*1000./vi->rate*ci->blocksizes[1];
+ g->coupling_pkHz[i]=kHz;
+
+ kHz=p[is].lowpasskHz[i]*(1.-ds)+p[is+1].lowpasskHz[i]*ds;
+ g->sliding_lowpass[0][i]=kHz*1000./vi->rate*ci->blocksizes[0];
+ g->sliding_lowpass[1][i]=kHz*1000./vi->rate*ci->blocksizes[1];
+
+ }
+ }else{
+ float kHz=p[is].kHz[PACKETBLOBS/2]*(1.-ds)+p[is+1].kHz[PACKETBLOBS/2]*ds;
+ for(i=0;i<PACKETBLOBS;i++){
+ g->coupling_pointlimit[0][i]=kHz*1000./vi->rate*ci->blocksizes[0];
+ g->coupling_pointlimit[1][i]=kHz*1000./vi->rate*ci->blocksizes[1];
+ g->coupling_pkHz[i]=kHz;
+ }
+
+ kHz=p[is].lowpasskHz[PACKETBLOBS/2]*(1.-ds)+p[is+1].lowpasskHz[PACKETBLOBS/2]*ds;
+ for(i=0;i<PACKETBLOBS;i++){
+ g->sliding_lowpass[0][i]=kHz*1000./vi->rate*ci->blocksizes[0];
+ g->sliding_lowpass[1][i]=kHz*1000./vi->rate*ci->blocksizes[1];
+ }
+ }
+ }else{
+ for(i=0;i<PACKETBLOBS;i++){
+ g->sliding_lowpass[0][i]=ci->blocksizes[0];
+ g->sliding_lowpass[1][i]=ci->blocksizes[1];
+ }
+ }
+ return;
+}
+
+static void vorbis_encode_psyset_setup(vorbis_info *vi,double s,
+ const int *nn_start,
+ const int *nn_partition,
+ const double *nn_thresh,
+ int block){
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy *p=ci->psy_param[block];
+ highlevel_encode_setup *hi=&ci->hi;
+ int is=s;
+
+ if(block>=ci->psys)
+ ci->psys=block+1;
+ if(!p){
+ p=_ogg_calloc(1,sizeof(*p));
+ ci->psy_param[block]=p;
+ }
+
+ memcpy(p,&_psy_info_template,sizeof(*p));
+ p->blockflag=block>>1;
+
+ if(hi->noise_normalize_p){
+ p->normal_p=1;
+ p->normal_start=nn_start[is];
+ p->normal_partition=nn_partition[is];
+ p->normal_thresh=nn_thresh[is];
+ }
+
+ return;
+}
+
+static void vorbis_encode_tonemask_setup(vorbis_info *vi,double s,int block,
+ const att3 *att,
+ const int *max,
+ const vp_adjblock *in){
+ int i,is=s;
+ double ds=s-is;
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy *p=ci->psy_param[block];
+
+ /* 0 and 2 are only used by bitmanagement, but there's no harm to always
+ filling the values in here */
+ p->tone_masteratt[0]=att[is].att[0]*(1.-ds)+att[is+1].att[0]*ds;
+ p->tone_masteratt[1]=att[is].att[1]*(1.-ds)+att[is+1].att[1]*ds;
+ p->tone_masteratt[2]=att[is].att[2]*(1.-ds)+att[is+1].att[2]*ds;
+ p->tone_centerboost=att[is].boost*(1.-ds)+att[is+1].boost*ds;
+ p->tone_decay=att[is].decay*(1.-ds)+att[is+1].decay*ds;
+
+ p->max_curve_dB=max[is]*(1.-ds)+max[is+1]*ds;
+
+ for(i=0;i<P_BANDS;i++)
+ p->toneatt[i]=in[is].block[i]*(1.-ds)+in[is+1].block[i]*ds;
+ return;
+}
+
+
+static void vorbis_encode_compand_setup(vorbis_info *vi,double s,int block,
+ const compandblock *in,
+ const double *x){
+ int i,is=s;
+ double ds=s-is;
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy *p=ci->psy_param[block];
+
+ ds=x[is]*(1.-ds)+x[is+1]*ds;
+ is=(int)ds;
+ ds-=is;
+ if(ds==0 && is>0){
+ is--;
+ ds=1.;
+ }
+
+ /* interpolate the compander settings */
+ for(i=0;i<NOISE_COMPAND_LEVELS;i++)
+ p->noisecompand[i]=in[is].data[i]*(1.-ds)+in[is+1].data[i]*ds;
+ return;
+}
+
+static void vorbis_encode_peak_setup(vorbis_info *vi,double s,int block,
+ const int *suppress){
+ int is=s;
+ double ds=s-is;
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy *p=ci->psy_param[block];
+
+ p->tone_abs_limit=suppress[is]*(1.-ds)+suppress[is+1]*ds;
+
+ return;
+}
+
+static void vorbis_encode_noisebias_setup(vorbis_info *vi,double s,int block,
+ const int *suppress,
+ const noise3 *in,
+ const noiseguard *guard,
+ double userbias){
+ int i,is=s,j;
+ double ds=s-is;
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy *p=ci->psy_param[block];
+
+ p->noisemaxsupp=suppress[is]*(1.-ds)+suppress[is+1]*ds;
+ p->noisewindowlomin=guard[block].lo;
+ p->noisewindowhimin=guard[block].hi;
+ p->noisewindowfixed=guard[block].fixed;
+
+ for(j=0;j<P_NOISECURVES;j++)
+ for(i=0;i<P_BANDS;i++)
+ p->noiseoff[j][i]=in[is].data[j][i]*(1.-ds)+in[is+1].data[j][i]*ds;
+
+ /* impulse blocks may take a user specified bias to boost the
+ nominal/high noise encoding depth */
+ for(j=0;j<P_NOISECURVES;j++){
+ float min=p->noiseoff[j][0]+6; /* the lowest it can go */
+ for(i=0;i<P_BANDS;i++){
+ p->noiseoff[j][i]+=userbias;
+ if(p->noiseoff[j][i]<min)p->noiseoff[j][i]=min;
+ }
+ }
+
+ return;
+}
+
+static void vorbis_encode_ath_setup(vorbis_info *vi,int block){
+ codec_setup_info *ci=vi->codec_setup;
+ vorbis_info_psy *p=ci->psy_param[block];
+
+ p->ath_adjatt=ci->hi.ath_floating_dB;
+ p->ath_maxatt=ci->hi.ath_absolute_dB;
+ return;
+}
+
+
+static int book_dup_or_new(codec_setup_info *ci,const static_codebook *book){
+ int i;
+ for(i=0;i<ci->books;i++)
+ if(ci->book_param[i]==book)return(i);
+
+ return(ci->books++);
+}
+
+static void vorbis_encode_blocksize_setup(vorbis_info *vi,double s,
+ const int *shortb,const int *longb){
+
+ codec_setup_info *ci=vi->codec_setup;
+ int is=s;
+
+ int blockshort=shortb[is];
+ int blocklong=longb[is];
+ ci->blocksizes[0]=blockshort;
+ ci->blocksizes[1]=blocklong;
+
+}
+
+static void vorbis_encode_residue_setup(vorbis_info *vi,
+ int number, int block,
+ const vorbis_residue_template *res){
+
+ codec_setup_info *ci=vi->codec_setup;
+ int i;
+
+ vorbis_info_residue0 *r=ci->residue_param[number]=
+ _ogg_malloc(sizeof(*r));
+
+ memcpy(r,res->res,sizeof(*r));
+ if(ci->residues<=number)ci->residues=number+1;
+
+ r->grouping=res->grouping;
+ ci->residue_type[number]=res->res_type;
+
+ /* fill in all the books */
+ {
+ int booklist=0,k;
+
+ if(ci->hi.managed){
+ for(i=0;i<r->partitions;i++)
+ for(k=0;k<4;k++)
+ if(res->books_base_managed->books[i][k])
+ r->secondstages[i]|=(1<<k);
+
+ r->groupbook=book_dup_or_new(ci,res->book_aux_managed);
+ ci->book_param[r->groupbook]=(static_codebook *)res->book_aux_managed;
+
+ for(i=0;i<r->partitions;i++){
+ for(k=0;k<4;k++){
+ if(res->books_base_managed->books[i][k]){
+ int bookid=book_dup_or_new(ci,res->books_base_managed->books[i][k]);
+ r->booklist[booklist++]=bookid;
+ ci->book_param[bookid]=(static_codebook *)res->books_base_managed->books[i][k];
+ }
+ }
+ }
+
+ }else{
+
+ for(i=0;i<r->partitions;i++)
+ for(k=0;k<4;k++)
+ if(res->books_base->books[i][k])
+ r->secondstages[i]|=(1<<k);
+
+ r->groupbook=book_dup_or_new(ci,res->book_aux);
+ ci->book_param[r->groupbook]=(static_codebook *)res->book_aux;
+
+ for(i=0;i<r->partitions;i++){
+ for(k=0;k<4;k++){
+ if(res->books_base->books[i][k]){
+ int bookid=book_dup_or_new(ci,res->books_base->books[i][k]);
+ r->booklist[booklist++]=bookid;
+ ci->book_param[bookid]=(static_codebook *)res->books_base->books[i][k];
+ }
+ }
+ }
+ }
+ }
+
+ /* lowpass setup/pointlimit */
+ {
+ double freq=ci->hi.lowpass_kHz*1000.;
+ vorbis_info_floor1 *f=ci->floor_param[block]; /* by convention */
+ double nyq=vi->rate/2.;
+ long blocksize=ci->blocksizes[block]>>1;
+
+ /* lowpass needs to be set in the floor and the residue. */
+ if(freq>nyq)freq=nyq;
+ /* in the floor, the granularity can be very fine; it doesn't alter
+ the encoding structure, only the samples used to fit the floor
+ approximation */
+ f->n=freq/nyq*blocksize;
+
+ /* this res may by limited by the maximum pointlimit of the mode,
+ not the lowpass. the floor is always lowpass limited. */
+ switch(res->limit_type){
+ case 1: /* point stereo limited */
+ if(ci->hi.managed)
+ freq=ci->psy_g_param.coupling_pkHz[PACKETBLOBS-1]*1000.;
+ else
+ freq=ci->psy_g_param.coupling_pkHz[PACKETBLOBS/2]*1000.;
+ if(freq>nyq)freq=nyq;
+ break;
+ case 2: /* LFE channel; lowpass at ~ 250Hz */
+ freq=250;
+ break;
+ default:
+ /* already set */
+ break;
+ }
+
+ /* in the residue, we're constrained, physically, by partition
+ boundaries. We still lowpass 'wherever', but we have to round up
+ here to next boundary, or the vorbis spec will round it *down* to
+ previous boundary in encode/decode */
+ if(ci->residue_type[number]==2){
+ /* residue 2 bundles together multiple channels; used by stereo
+ and surround. Count the channels in use */
+ /* Multiple maps/submaps can point to the same residue. In the case
+ of residue 2, they all better have the same number of
+ channels/samples. */
+ int j,k,ch=0;
+ for(i=0;i<ci->maps&&ch==0;i++){
+ vorbis_info_mapping0 *mi=(vorbis_info_mapping0 *)ci->map_param[i];
+ for(j=0;j<mi->submaps && ch==0;j++)
+ if(mi->residuesubmap[j]==number) /* we found a submap referencing theis residue backend */
+ for(k=0;k<vi->channels;k++)
+ if(mi->chmuxlist[k]==j) /* this channel belongs to the submap */
+ ch++;
+ }
+
+ r->end=(int)((freq/nyq*blocksize*ch)/r->grouping+.9)* /* round up only if we're well past */
+ r->grouping;
+ /* the blocksize and grouping may disagree at the end */
+ if(r->end>blocksize*ch)r->end=blocksize*ch/r->grouping*r->grouping;
+
+ }else{
+
+ r->end=(int)((freq/nyq*blocksize)/r->grouping+.9)* /* round up only if we're well past */
+ r->grouping;
+ /* the blocksize and grouping may disagree at the end */
+ if(r->end>blocksize)r->end=blocksize/r->grouping*r->grouping;
+
+ }
+
+ if(r->end==0)r->end=r->grouping; /* LFE channel */
+
+ }
+}
+
+/* we assume two maps in this encoder */
+static void vorbis_encode_map_n_res_setup(vorbis_info *vi,double s,
+ const vorbis_mapping_template *maps){
+
+ codec_setup_info *ci=vi->codec_setup;
+ int i,j,is=s,modes=2;
+ const vorbis_info_mapping0 *map=maps[is].map;
+ const vorbis_info_mode *mode=_mode_template;
+ const vorbis_residue_template *res=maps[is].res;
+
+ if(ci->blocksizes[0]==ci->blocksizes[1])modes=1;
+
+ for(i=0;i<modes;i++){
+
+ ci->map_param[i]=_ogg_calloc(1,sizeof(*map));
+ ci->mode_param[i]=_ogg_calloc(1,sizeof(*mode));
+
+ memcpy(ci->mode_param[i],mode+i,sizeof(*_mode_template));
+ if(i>=ci->modes)ci->modes=i+1;
+
+ ci->map_type[i]=0;
+ memcpy(ci->map_param[i],map+i,sizeof(*map));
+ if(i>=ci->maps)ci->maps=i+1;
+
+ for(j=0;j<map[i].submaps;j++)
+ vorbis_encode_residue_setup(vi,map[i].residuesubmap[j],i
+ ,res+map[i].residuesubmap[j]);
+ }
+}
+
+static double setting_to_approx_bitrate(vorbis_info *vi){
+ codec_setup_info *ci=vi->codec_setup;
+ highlevel_encode_setup *hi=&ci->hi;
+ ve_setup_data_template *setup=(ve_setup_data_template *)hi->setup;
+ int is=hi->base_setting;
+ double ds=hi->base_setting-is;
+ int ch=vi->channels;
+ const double *r=setup->rate_mapping;
+
+ if(r==NULL)
+ return(-1);
+
+ return((r[is]*(1.-ds)+r[is+1]*ds)*ch);
+}
+
+static const void *get_setup_template(long ch,long srate,
+ double req,int q_or_bitrate,
+ double *base_setting){
+ int i=0,j;
+ if(q_or_bitrate)req/=ch;
+
+ while(setup_list[i]){
+ if(setup_list[i]->coupling_restriction==-1 ||
+ setup_list[i]->coupling_restriction==ch){
+ if(srate>=setup_list[i]->samplerate_min_restriction &&
+ srate<=setup_list[i]->samplerate_max_restriction){
+ int mappings=setup_list[i]->mappings;
+ const double *map=(q_or_bitrate?
+ setup_list[i]->rate_mapping:
+ setup_list[i]->quality_mapping);
+
+ /* the template matches. Does the requested quality mode
+ fall within this template's modes? */
+ if(req<map[0]){++i;continue;}
+ if(req>map[setup_list[i]->mappings]){++i;continue;}
+ for(j=0;j<mappings;j++)
+ if(req>=map[j] && req<map[j+1])break;
+ /* an all-points match */
+ if(j==mappings)
+ *base_setting=j-.001;
+ else{
+ float low=map[j];
+ float high=map[j+1];
+ float del=(req-low)/(high-low);
+ *base_setting=j+del;
+ }
+
+ return(setup_list[i]);
+ }
+ }
+ i++;
+ }
+
+ return NULL;
+}
+
+/* encoders will need to use vorbis_info_init beforehand and call
+ vorbis_info clear when all done */
+
+/* two interfaces; this, more detailed one, and later a convenience
+ layer on top */
+
+/* the final setup call */
+int vorbis_encode_setup_init(vorbis_info *vi){
+ int i,i0=0,singleblock=0;
+ codec_setup_info *ci=vi->codec_setup;
+ ve_setup_data_template *setup=NULL;
+ highlevel_encode_setup *hi=&ci->hi;
+
+ if(ci==NULL)return(OV_EINVAL);
+ if(!hi->impulse_block_p)i0=1;
+
+ /* too low/high an ATH floater is nonsensical, but doesn't break anything */
+ if(hi->ath_floating_dB>-80)hi->ath_floating_dB=-80;
+ if(hi->ath_floating_dB<-200)hi->ath_floating_dB=-200;
+
+ /* again, bound this to avoid the app shooting itself int he foot
+ too badly */
+ if(hi->amplitude_track_dBpersec>0.)hi->amplitude_track_dBpersec=0.;
+ if(hi->amplitude_track_dBpersec<-99999.)hi->amplitude_track_dBpersec=-99999.;
+
+ /* get the appropriate setup template; matches the fetch in previous
+ stages */
+ setup=(ve_setup_data_template *)hi->setup;
+ if(setup==NULL)return(OV_EINVAL);
+
+ hi->set_in_stone=1;
+ /* choose block sizes from configured sizes as well as paying
+ attention to long_block_p and short_block_p. If the configured
+ short and long blocks are the same length, we set long_block_p
+ and unset short_block_p */
+ vorbis_encode_blocksize_setup(vi,hi->base_setting,
+ setup->blocksize_short,
+ setup->blocksize_long);
+ if(ci->blocksizes[0]==ci->blocksizes[1])singleblock=1;
+
+ /* floor setup; choose proper floor params. Allocated on the floor
+ stack in order; if we alloc only a single long floor, it's 0 */
+ for(i=0;i<setup->floor_mappings;i++)
+ vorbis_encode_floor_setup(vi,hi->base_setting,
+ setup->floor_books,
+ setup->floor_params,
+ setup->floor_mapping_list[i]);
+
+ /* setup of [mostly] short block detection and stereo*/
+ vorbis_encode_global_psych_setup(vi,hi->trigger_setting,
+ setup->global_params,
+ setup->global_mapping);
+ vorbis_encode_global_stereo(vi,hi,setup->stereo_modes);
+
+ /* basic psych setup and noise normalization */
+ vorbis_encode_psyset_setup(vi,hi->base_setting,
+ setup->psy_noise_normal_start[0],
+ setup->psy_noise_normal_partition[0],
+ setup->psy_noise_normal_thresh,
+ 0);
+ vorbis_encode_psyset_setup(vi,hi->base_setting,
+ setup->psy_noise_normal_start[0],
+ setup->psy_noise_normal_partition[0],
+ setup->psy_noise_normal_thresh,
+ 1);
+ if(!singleblock){
+ vorbis_encode_psyset_setup(vi,hi->base_setting,
+ setup->psy_noise_normal_start[1],
+ setup->psy_noise_normal_partition[1],
+ setup->psy_noise_normal_thresh,
+ 2);
+ vorbis_encode_psyset_setup(vi,hi->base_setting,
+ setup->psy_noise_normal_start[1],
+ setup->psy_noise_normal_partition[1],
+ setup->psy_noise_normal_thresh,
+ 3);
+ }
+
+ /* tone masking setup */
+ vorbis_encode_tonemask_setup(vi,hi->block[i0].tone_mask_setting,0,
+ setup->psy_tone_masteratt,
+ setup->psy_tone_0dB,
+ setup->psy_tone_adj_impulse);
+ vorbis_encode_tonemask_setup(vi,hi->block[1].tone_mask_setting,1,
+ setup->psy_tone_masteratt,
+ setup->psy_tone_0dB,
+ setup->psy_tone_adj_other);
+ if(!singleblock){
+ vorbis_encode_tonemask_setup(vi,hi->block[2].tone_mask_setting,2,
+ setup->psy_tone_masteratt,
+ setup->psy_tone_0dB,
+ setup->psy_tone_adj_other);
+ vorbis_encode_tonemask_setup(vi,hi->block[3].tone_mask_setting,3,
+ setup->psy_tone_masteratt,
+ setup->psy_tone_0dB,
+ setup->psy_tone_adj_long);
+ }
+
+ /* noise companding setup */
+ vorbis_encode_compand_setup(vi,hi->block[i0].noise_compand_setting,0,
+ setup->psy_noise_compand,
+ setup->psy_noise_compand_short_mapping);
+ vorbis_encode_compand_setup(vi,hi->block[1].noise_compand_setting,1,
+ setup->psy_noise_compand,
+ setup->psy_noise_compand_short_mapping);
+ if(!singleblock){
+ vorbis_encode_compand_setup(vi,hi->block[2].noise_compand_setting,2,
+ setup->psy_noise_compand,
+ setup->psy_noise_compand_long_mapping);
+ vorbis_encode_compand_setup(vi,hi->block[3].noise_compand_setting,3,
+ setup->psy_noise_compand,
+ setup->psy_noise_compand_long_mapping);
+ }
+
+ /* peak guarding setup */
+ vorbis_encode_peak_setup(vi,hi->block[i0].tone_peaklimit_setting,0,
+ setup->psy_tone_dBsuppress);
+ vorbis_encode_peak_setup(vi,hi->block[1].tone_peaklimit_setting,1,
+ setup->psy_tone_dBsuppress);
+ if(!singleblock){
+ vorbis_encode_peak_setup(vi,hi->block[2].tone_peaklimit_setting,2,
+ setup->psy_tone_dBsuppress);
+ vorbis_encode_peak_setup(vi,hi->block[3].tone_peaklimit_setting,3,
+ setup->psy_tone_dBsuppress);
+ }
+
+ /* noise bias setup */
+ vorbis_encode_noisebias_setup(vi,hi->block[i0].noise_bias_setting,0,
+ setup->psy_noise_dBsuppress,
+ setup->psy_noise_bias_impulse,
+ setup->psy_noiseguards,
+ (i0==0?hi->impulse_noisetune:0.));
+ vorbis_encode_noisebias_setup(vi,hi->block[1].noise_bias_setting,1,
+ setup->psy_noise_dBsuppress,
+ setup->psy_noise_bias_padding,
+ setup->psy_noiseguards,0.);
+ if(!singleblock){
+ vorbis_encode_noisebias_setup(vi,hi->block[2].noise_bias_setting,2,
+ setup->psy_noise_dBsuppress,
+ setup->psy_noise_bias_trans,
+ setup->psy_noiseguards,0.);
+ vorbis_encode_noisebias_setup(vi,hi->block[3].noise_bias_setting,3,
+ setup->psy_noise_dBsuppress,
+ setup->psy_noise_bias_long,
+ setup->psy_noiseguards,0.);
+ }
+
+ vorbis_encode_ath_setup(vi,0);
+ vorbis_encode_ath_setup(vi,1);
+ if(!singleblock){
+ vorbis_encode_ath_setup(vi,2);
+ vorbis_encode_ath_setup(vi,3);
+ }
+
+ vorbis_encode_map_n_res_setup(vi,hi->base_setting,setup->maps);
+
+ /* set bitrate readonlies and management */
+ if(hi->bitrate_av>0)
+ vi->bitrate_nominal=hi->bitrate_av;
+ else{
+ vi->bitrate_nominal=setting_to_approx_bitrate(vi);
+ }
+
+ vi->bitrate_lower=hi->bitrate_min;
+ vi->bitrate_upper=hi->bitrate_max;
+ if(hi->bitrate_av)
+ vi->bitrate_window=(double)hi->bitrate_reservoir/hi->bitrate_av;
+ else
+ vi->bitrate_window=0.;
+
+ if(hi->managed){
+ ci->bi.avg_rate=hi->bitrate_av;
+ ci->bi.min_rate=hi->bitrate_min;
+ ci->bi.max_rate=hi->bitrate_max;
+
+ ci->bi.reservoir_bits=hi->bitrate_reservoir;
+ ci->bi.reservoir_bias=
+ hi->bitrate_reservoir_bias;
+
+ ci->bi.slew_damp=hi->bitrate_av_damp;
+
+ }
+
+ return(0);
+
+}
+
+static void vorbis_encode_setup_setting(vorbis_info *vi,
+ long channels,
+ long rate){
+ int i,is;
+ codec_setup_info *ci=vi->codec_setup;
+ highlevel_encode_setup *hi=&ci->hi;
+ const ve_setup_data_template *setup=hi->setup;
+ double ds;
+
+ vi->version=0;
+ vi->channels=channels;
+ vi->rate=rate;
+
+ hi->impulse_block_p=1;
+ hi->noise_normalize_p=1;
+
+ is=hi->base_setting;
+ ds=hi->base_setting-is;
+
+ hi->stereo_point_setting=hi->base_setting;
+
+ if(!hi->lowpass_altered)
+ hi->lowpass_kHz=
+ setup->psy_lowpass[is]*(1.-ds)+setup->psy_lowpass[is+1]*ds;
+
+ hi->ath_floating_dB=setup->psy_ath_float[is]*(1.-ds)+
+ setup->psy_ath_float[is+1]*ds;
+ hi->ath_absolute_dB=setup->psy_ath_abs[is]*(1.-ds)+
+ setup->psy_ath_abs[is+1]*ds;
+
+ hi->amplitude_track_dBpersec=-6.;
+ hi->trigger_setting=hi->base_setting;
+
+ for(i=0;i<4;i++){
+ hi->block[i].tone_mask_setting=hi->base_setting;
+ hi->block[i].tone_peaklimit_setting=hi->base_setting;
+ hi->block[i].noise_bias_setting=hi->base_setting;
+ hi->block[i].noise_compand_setting=hi->base_setting;
+ }
+}
+
+int vorbis_encode_setup_vbr(vorbis_info *vi,
+ long channels,
+ long rate,
+ float quality){
+ codec_setup_info *ci=vi->codec_setup;
+ highlevel_encode_setup *hi=&ci->hi;
+
+ quality+=.0000001;
+ if(quality>=1.)quality=.9999;
+
+ hi->req=quality;
+ hi->setup=get_setup_template(channels,rate,quality,0,&hi->base_setting);
+ if(!hi->setup)return OV_EIMPL;
+
+ vorbis_encode_setup_setting(vi,channels,rate);
+ hi->managed=0;
+ hi->coupling_p=1;
+
+ return 0;
+}
+
+int vorbis_encode_init_vbr(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ float base_quality /* 0. to 1. */
+ ){
+ int ret=0;
+
+ ret=vorbis_encode_setup_vbr(vi,channels,rate,base_quality);
+
+ if(ret){
+ vorbis_info_clear(vi);
+ return ret;
+ }
+ ret=vorbis_encode_setup_init(vi);
+ if(ret)
+ vorbis_info_clear(vi);
+ return(ret);
+}
+
+int vorbis_encode_setup_managed(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ long max_bitrate,
+ long nominal_bitrate,
+ long min_bitrate){
+
+ codec_setup_info *ci=vi->codec_setup;
+ highlevel_encode_setup *hi=&ci->hi;
+ double tnominal=nominal_bitrate;
+
+ if(nominal_bitrate<=0.){
+ if(max_bitrate>0.){
+ if(min_bitrate>0.)
+ nominal_bitrate=(max_bitrate+min_bitrate)*.5;
+ else
+ nominal_bitrate=max_bitrate*.875;
+ }else{
+ if(min_bitrate>0.){
+ nominal_bitrate=min_bitrate;
+ }else{
+ return(OV_EINVAL);
+ }
+ }
+ }
+
+ hi->req=nominal_bitrate;
+ hi->setup=get_setup_template(channels,rate,nominal_bitrate,1,&hi->base_setting);
+ if(!hi->setup)return OV_EIMPL;
+
+ vorbis_encode_setup_setting(vi,channels,rate);
+
+ /* initialize management with sane defaults */
+ hi->coupling_p=1;
+ hi->managed=1;
+ hi->bitrate_min=min_bitrate;
+ hi->bitrate_max=max_bitrate;
+ hi->bitrate_av=tnominal;
+ hi->bitrate_av_damp=1.5f; /* full range in no less than 1.5 second */
+ hi->bitrate_reservoir=nominal_bitrate*2;
+ hi->bitrate_reservoir_bias=.1; /* bias toward hoarding bits */
+
+ return(0);
+
+}
+
+int vorbis_encode_init(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ long max_bitrate,
+ long nominal_bitrate,
+ long min_bitrate){
+
+ int ret=vorbis_encode_setup_managed(vi,channels,rate,
+ max_bitrate,
+ nominal_bitrate,
+ min_bitrate);
+ if(ret){
+ vorbis_info_clear(vi);
+ return(ret);
+ }
+
+ ret=vorbis_encode_setup_init(vi);
+ if(ret)
+ vorbis_info_clear(vi);
+ return(ret);
+}
+
+int vorbis_encode_ctl(vorbis_info *vi,int number,void *arg){
+ if(vi){
+ codec_setup_info *ci=vi->codec_setup;
+ highlevel_encode_setup *hi=&ci->hi;
+ int setp=(number&0xf); /* a read request has a low nibble of 0 */
+
+ if(setp && hi->set_in_stone)return(OV_EINVAL);
+
+ switch(number){
+
+ /* now deprecated *****************/
+ case OV_ECTL_RATEMANAGE_GET:
+ {
+
+ struct ovectl_ratemanage_arg *ai=
+ (struct ovectl_ratemanage_arg *)arg;
+
+ ai->management_active=hi->managed;
+ ai->bitrate_hard_window=ai->bitrate_av_window=
+ (double)hi->bitrate_reservoir/vi->rate;
+ ai->bitrate_av_window_center=1.;
+ ai->bitrate_hard_min=hi->bitrate_min;
+ ai->bitrate_hard_max=hi->bitrate_max;
+ ai->bitrate_av_lo=hi->bitrate_av;
+ ai->bitrate_av_hi=hi->bitrate_av;
+
+ }
+ return(0);
+
+ /* now deprecated *****************/
+ case OV_ECTL_RATEMANAGE_SET:
+ {
+ struct ovectl_ratemanage_arg *ai=
+ (struct ovectl_ratemanage_arg *)arg;
+ if(ai==NULL){
+ hi->managed=0;
+ }else{
+ hi->managed=ai->management_active;
+ vorbis_encode_ctl(vi,OV_ECTL_RATEMANAGE_AVG,arg);
+ vorbis_encode_ctl(vi,OV_ECTL_RATEMANAGE_HARD,arg);
+ }
+ }
+ return 0;
+
+ /* now deprecated *****************/
+ case OV_ECTL_RATEMANAGE_AVG:
+ {
+ struct ovectl_ratemanage_arg *ai=
+ (struct ovectl_ratemanage_arg *)arg;
+ if(ai==NULL){
+ hi->bitrate_av=0;
+ }else{
+ hi->bitrate_av=(ai->bitrate_av_lo+ai->bitrate_av_hi)*.5;
+ }
+ }
+ return(0);
+ /* now deprecated *****************/
+ case OV_ECTL_RATEMANAGE_HARD:
+ {
+ struct ovectl_ratemanage_arg *ai=
+ (struct ovectl_ratemanage_arg *)arg;
+ if(ai==NULL){
+ hi->bitrate_min=0;
+ hi->bitrate_max=0;
+ }else{
+ hi->bitrate_min=ai->bitrate_hard_min;
+ hi->bitrate_max=ai->bitrate_hard_max;
+ hi->bitrate_reservoir=ai->bitrate_hard_window*
+ (hi->bitrate_max+hi->bitrate_min)*.5;
+ }
+ if(hi->bitrate_reservoir<128.)
+ hi->bitrate_reservoir=128.;
+ }
+ return(0);
+
+ /* replacement ratemanage interface */
+ case OV_ECTL_RATEMANAGE2_GET:
+ {
+ struct ovectl_ratemanage2_arg *ai=
+ (struct ovectl_ratemanage2_arg *)arg;
+ if(ai==NULL)return OV_EINVAL;
+
+ ai->management_active=hi->managed;
+ ai->bitrate_limit_min_kbps=hi->bitrate_min/1000;
+ ai->bitrate_limit_max_kbps=hi->bitrate_max/1000;
+ ai->bitrate_average_kbps=hi->bitrate_av/1000;
+ ai->bitrate_average_damping=hi->bitrate_av_damp;
+ ai->bitrate_limit_reservoir_bits=hi->bitrate_reservoir;
+ ai->bitrate_limit_reservoir_bias=hi->bitrate_reservoir_bias;
+ }
+ return (0);
+ case OV_ECTL_RATEMANAGE2_SET:
+ {
+ struct ovectl_ratemanage2_arg *ai=
+ (struct ovectl_ratemanage2_arg *)arg;
+ if(ai==NULL){
+ hi->managed=0;
+ }else{
+ /* sanity check; only catch invariant violations */
+ if(ai->bitrate_limit_min_kbps>0 &&
+ ai->bitrate_average_kbps>0 &&
+ ai->bitrate_limit_min_kbps>ai->bitrate_average_kbps)
+ return OV_EINVAL;
+
+ if(ai->bitrate_limit_max_kbps>0 &&
+ ai->bitrate_average_kbps>0 &&
+ ai->bitrate_limit_max_kbps<ai->bitrate_average_kbps)
+ return OV_EINVAL;
+
+ if(ai->bitrate_limit_min_kbps>0 &&
+ ai->bitrate_limit_max_kbps>0 &&
+ ai->bitrate_limit_min_kbps>ai->bitrate_limit_max_kbps)
+ return OV_EINVAL;
+
+ if(ai->bitrate_average_damping <= 0.)
+ return OV_EINVAL;
+
+ if(ai->bitrate_limit_reservoir_bits < 0)
+ return OV_EINVAL;
+
+ if(ai->bitrate_limit_reservoir_bias < 0.)
+ return OV_EINVAL;
+
+ if(ai->bitrate_limit_reservoir_bias > 1.)
+ return OV_EINVAL;
+
+ hi->managed=ai->management_active;
+ hi->bitrate_min=ai->bitrate_limit_min_kbps * 1000;
+ hi->bitrate_max=ai->bitrate_limit_max_kbps * 1000;
+ hi->bitrate_av=ai->bitrate_average_kbps * 1000;
+ hi->bitrate_av_damp=ai->bitrate_average_damping;
+ hi->bitrate_reservoir=ai->bitrate_limit_reservoir_bits;
+ hi->bitrate_reservoir_bias=ai->bitrate_limit_reservoir_bias;
+ }
+ }
+ return 0;
+
+ case OV_ECTL_LOWPASS_GET:
+ {
+ double *farg=(double *)arg;
+ *farg=hi->lowpass_kHz;
+ }
+ return(0);
+ case OV_ECTL_LOWPASS_SET:
+ {
+ double *farg=(double *)arg;
+ hi->lowpass_kHz=*farg;
+
+ if(hi->lowpass_kHz<2.)hi->lowpass_kHz=2.;
+ if(hi->lowpass_kHz>99.)hi->lowpass_kHz=99.;
+ hi->lowpass_altered=1;
+ }
+ return(0);
+ case OV_ECTL_IBLOCK_GET:
+ {
+ double *farg=(double *)arg;
+ *farg=hi->impulse_noisetune;
+ }
+ return(0);
+ case OV_ECTL_IBLOCK_SET:
+ {
+ double *farg=(double *)arg;
+ hi->impulse_noisetune=*farg;
+
+ if(hi->impulse_noisetune>0.)hi->impulse_noisetune=0.;
+ if(hi->impulse_noisetune<-15.)hi->impulse_noisetune=-15.;
+ }
+ return(0);
+ case OV_ECTL_COUPLING_GET:
+ {
+ int *iarg=(int *)arg;
+ *iarg=hi->coupling_p;
+ }
+ return(0);
+ case OV_ECTL_COUPLING_SET:
+ {
+ const void *new_template;
+ double new_base=0.;
+ int *iarg=(int *)arg;
+ hi->coupling_p=((*iarg)!=0);
+
+ /* Fetching a new template can alter the base_setting, which
+ many other parameters are based on. Right now, the only
+ parameter drawn from the base_setting that can be altered
+ by an encctl is the lowpass, so that is explictly flagged
+ to not be overwritten when we fetch a new template and
+ recompute the dependant settings */
+ new_template = get_setup_template(hi->coupling_p?vi->channels:-1,
+ vi->rate,
+ hi->req,
+ hi->managed,
+ &new_base);
+ if(!hi->setup)return OV_EIMPL;
+ hi->setup=new_template;
+ hi->base_setting=new_base;
+ vorbis_encode_setup_setting(vi,vi->channels,vi->rate);
+ }
+ return(0);
+ }
+ return(OV_EIMPL);
+ }
+ return(OV_EINVAL);
+}
projects / laserbrain_demo / blobdiff