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-rw-r--r--apps/codecs/libtremor/mapping0.c416
1 files changed, 0 insertions, 416 deletions
diff --git a/apps/codecs/libtremor/mapping0.c b/apps/codecs/libtremor/mapping0.c
deleted file mode 100644
index 084d5e076d..0000000000
--- a/apps/codecs/libtremor/mapping0.c
+++ /dev/null
@@ -1,416 +0,0 @@
-/********************************************************************
- * *
- * THIS FILE IS PART OF THE OggVorbis 'TREMOR' 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 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
- * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
- * *
- ********************************************************************
-
- function: channel mapping 0 implementation
-
- ********************************************************************/
-
-#include "config-tremor.h"
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include "ogg.h"
-#include "ivorbiscodec.h"
-#include "codeclib.h"
-#include "codec_internal.h"
-#include "codebook.h"
-#include "window.h"
-#include "registry.h"
-#include "misc.h"
-#include <codecs/lib/codeclib.h>
-
-/* simplistic, wasteful way of doing this (unique lookup for each
- mode/submapping); there should be a central repository for
- identical lookups. That will require minor work, so I'm putting it
- off as low priority.
-
- Why a lookup for each backend in a given mode? Because the
- blocksize is set by the mode, and low backend lookups may require
- parameters from other areas of the mode/mapping */
-
-typedef struct {
- vorbis_info_mode *mode;
- vorbis_info_mapping0 *map;
-
- vorbis_look_floor **floor_look;
-
- vorbis_look_residue **residue_look;
-
- vorbis_func_floor **floor_func;
- vorbis_func_residue **residue_func;
-
- int ch;
- long lastframe; /* if a different mode is called, we need to
- invalidate decay */
-} vorbis_look_mapping0;
-
-static void mapping0_free_info(vorbis_info_mapping *i){
- vorbis_info_mapping0 *info=(vorbis_info_mapping0 *)i;
- if(info){
- memset(info,0,sizeof(*info));
- _ogg_free(info);
- }
-}
-
-static void mapping0_free_look(vorbis_look_mapping *look){
- int i;
- vorbis_look_mapping0 *l=(vorbis_look_mapping0 *)look;
- if(l){
-
- for(i=0;i<l->map->submaps;i++){
- l->floor_func[i]->free_look(l->floor_look[i]);
- l->residue_func[i]->free_look(l->residue_look[i]);
- }
-
- _ogg_free(l->floor_func);
- _ogg_free(l->residue_func);
- _ogg_free(l->floor_look);
- _ogg_free(l->residue_look);
- memset(l,0,sizeof(*l));
- _ogg_free(l);
- }
-}
-
-static vorbis_look_mapping *mapping0_look(vorbis_dsp_state *vd,vorbis_info_mode *vm,
- vorbis_info_mapping *m){
- int i;
- vorbis_info *vi=vd->vi;
- codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
- vorbis_look_mapping0 *look=(vorbis_look_mapping0 *)_ogg_calloc(1,sizeof(*look));
- vorbis_info_mapping0 *info=look->map=(vorbis_info_mapping0 *)m;
- look->mode=vm;
-
- look->floor_look=(vorbis_look_floor **)_ogg_calloc(info->submaps,sizeof(*look->floor_look));
-
- look->residue_look=(vorbis_look_residue **)_ogg_calloc(info->submaps,sizeof(*look->residue_look));
-
- look->floor_func=(vorbis_func_floor **)_ogg_calloc(info->submaps,sizeof(*look->floor_func));
- look->residue_func=(vorbis_func_residue **)_ogg_calloc(info->submaps,sizeof(*look->residue_func));
-
- for(i=0;i<info->submaps;i++){
- int floornum=info->floorsubmap[i];
- int resnum=info->residuesubmap[i];
-
- look->floor_func[i]=_floor_P[ci->floor_type[floornum]];
- look->floor_look[i]=look->floor_func[i]->
- look(vd,vm,ci->floor_param[floornum]);
- look->residue_func[i]=_residue_P[ci->residue_type[resnum]];
- look->residue_look[i]=look->residue_func[i]->
- look(vd,vm,ci->residue_param[resnum]);
-
- }
-
- look->ch=vi->channels;
-
- return(look);
-}
-
-static int ilog(unsigned int v){
- int ret=0;
- if(v)--v;
- while(v){
- ret++;
- v>>=1;
- }
- return(ret);
-}
-
-
-/* also responsible for range checking */
-static vorbis_info_mapping *mapping0_unpack(vorbis_info *vi,oggpack_buffer *opb){
- int i,b;
- vorbis_info_mapping0 *info=(vorbis_info_mapping0 *)_ogg_calloc(1,sizeof(*info));
- codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
- memset(info,0,sizeof(*info));
-
- b=oggpack_read(opb,1);
- if(b<0)goto err_out;
- if(b){
- info->submaps=oggpack_read(opb,4)+1;
- if(info->submaps<=0)goto err_out;
- }else
- info->submaps=1;
-
- b=oggpack_read(opb,1);
- if(b<0)goto err_out;
- if(b){
- info->coupling_steps=oggpack_read(opb,8)+1;
- if(info->coupling_steps<=0)goto err_out;
- for(i=0;i<info->coupling_steps;i++){
- int testM=oggpack_read(opb,ilog(vi->channels));
- info->coupling_mag[i]=testM;
- int testA=oggpack_read(opb,ilog(vi->channels));
- info->coupling_ang[i]=testA;
-
- if(testM<0 ||
- testA<0 ||
- testM==testA ||
- testM>=vi->channels ||
- testA>=vi->channels) goto err_out;
- }
-
- }
-
- if(oggpack_read(opb,2)!=0)goto err_out; /* 2,3:reserved */
-
- if(info->submaps>1){
- for(i=0;i<vi->channels;i++){
- info->chmuxlist[i]=oggpack_read(opb,4);
- if(info->chmuxlist[i]>=info->submaps || info->chmuxlist[i]<0)goto err_out;
- }
- }
- for(i=0;i<info->submaps;i++){
- int temp=oggpack_read(opb,8);
- if(temp>=ci->times)goto err_out;
- info->floorsubmap[i]=oggpack_read(opb,8);
- if(info->floorsubmap[i]>=ci->floors || info->floorsubmap[i]<0)goto err_out;
- info->residuesubmap[i]=oggpack_read(opb,8);
- if(info->residuesubmap[i]>=ci->residues || info->residuesubmap[i]<0)
- goto err_out;
- }
-
- return info;
-
- err_out:
- mapping0_free_info(info);
- return(NULL);
-}
-
-#ifdef _ARM_ASSEM_
-#define MAGANG( _mag, _ang )\
-{\
- register int temp;\
- asm( "mov %[temp], %[ang]\n\t"\
- "cmp %[mag], #0\n\t"\
- "rsble %[temp], %[temp], #0\n\t"\
- "cmp %[ang], #0\n\t"\
- "subgt %[ang], %[mag], %[temp]\n\t"\
- "movle %[ang], %[mag]\n\t"\
- "addle %[mag], %[mag], %[temp]\n\t"\
- : [mag] "+r" ( ( _mag ) ), [ang] "+r" ( ( _ang ) ), [temp] "=&r" (temp)\
- :\
- : "cc" );\
-}
-
-static inline void channel_couple(ogg_int32_t *pcmM, ogg_int32_t *pcmA, int n)
-{
- ogg_int32_t * const pcmMend = pcmM + n/2;
- while(LIKELY(pcmM < pcmMend))
- {
- register int M0 asm("r2"),M1 asm("r3"),M2 asm("r4"),M3 asm("r5");
- register int A0 asm("r6"),A1 asm("r7"),A2 asm("r8"),A3 asm("r9");
- asm volatile( "ldmia %[pcmM], {%[M0], %[M1], %[M2], %[M3]}\n\t"
- "ldmia %[pcmA], {%[A0], %[A1], %[A2], %[A3]}\n\t"
- : [M0] "=r" (M0), [M1] "=r" (M1), [M2] "=r" (M2), [M3] "=r" (M3),
- [A0] "=r" (A0), [A1] "=r" (A1), [A2] "=r" (A2), [A3] "=r" (A3)
- : [pcmM] "r" (pcmM), [pcmA] "r" (pcmA)
- : "memory" );
- MAGANG( M0, A0 );
- MAGANG( M1, A1 );
- MAGANG( M2, A2 );
- MAGANG( M3, A3 );
- asm volatile( "stmia %[pcmM]!, {%[M0], %[M1], %[M2], %[M3]}\n\t"
- "stmia %[pcmA]!, {%[A0], %[A1], %[A2], %[A3]}\n\t"
- : [pcmM] "+r" (pcmM), [pcmA] "+r" (pcmA)
- : [M0] "r" (M0), [M1] "r" (M1), [M2] "r" (M2), [M3] "r" (M3),
- [A0] "r" (A0), [A1] "r" (A1), [A2] "r" (A2), [A3] "r" (A3)
- : "memory" );
- }
-}
-
-#elif defined CPU_COLDFIRE
-
-#define MAGANG( _mag, _ang, _off )\
-{\
- asm volatile( "tst.l %[mag]\n\t"\
- "bgt.s 1f\n\t"\
- "neg.l %[ang]\n\t" /* neg sets cc so we might as well jump */ \
- "ble.s 2f\n\t"\
- ".word 0x51fb\n\t" /* trapf.l, shadow next 2 insns */ \
- /* if we didn't jump, the next test will */ \
- /* false anyway */ \
- "1:\n\t"\
- "tst.l %[ang]\n\t"\
- "bgt.s 2f\n\t"\
- "add.l %[mag], %[ang]\n\t"\
- "move.l %[ang], (" #_off ", %[pcmM])\n\t"\
- ".word 0x51fa\n\t" /* trapf.w, shadow next insn */ \
- "2:\n\t"\
- "sub.l %[ang], %[mag]\n\t"\
- "move.l %[mag], (%[pcmA])+\n\t"\
- : [mag] "+r" ( ( _mag ) ), [ang] "+d" ( ( _ang ) ),\
- [pcmA] "+a" (pcmA)\
- : [pcmM] "a" (pcmM)\
- : "cc", "memory" );\
-}
-static inline void channel_couple(ogg_int32_t *pcmM, ogg_int32_t *pcmA, unsigned int n)
-{
- ogg_int32_t * const pcmMend = pcmM + n/2;
- while(LIKELY(pcmM < pcmMend))
- {
- register int M0 asm("a2"),M1 asm("a3"),M2 asm("a4"),M3 asm("a5");
- register int A0 asm("d2"),A1 asm("d3"),A2 asm("d4"),A3 asm("d5");
- asm volatile( "movem.l (%[pcmM]), %[M0]-%[M3]\n\t"
- "movem.l (%[pcmA]), %[A0]-%[A3]\n\t"
- : [M0] "=r" (M0), [M1] "=r" (M1), [M2] "=r" (M2), [M3] "=r" (M3),
- [A0] "=r" (A0), [A1] "=r" (A1), [A2] "=r" (A2), [A3] "=r" (A3)
- : [pcmM] "a" (pcmM), [pcmA] "a" (pcmA) );
-
- /* use offsets instead of autoinc since the store to pcmM is conditional */
- MAGANG( M0, A0, 0 );
- MAGANG( M1, A1, 4 );
- MAGANG( M2, A2, 8 );
- MAGANG( M3, A3, 12 );
-
- asm volatile( "lea.l (4*4, %[pcmM]), %[pcmM]\n\t"
- : [pcmM] "+a" (pcmM));
- }
-}
-#else
-static inline void channel_couple(ogg_int32_t *pcmM, ogg_int32_t *pcmA, int n)
-{
- int j;
- for(j=0;j<n/2;j++){
- ogg_int32_t mag = pcmM[j], ang = pcmA[j], _ang;
- if(mag>0)
- _ang = ang;
- else
- _ang = -ang;
-
- if(ang>0)
- pcmA[j]=mag-_ang;
- else{
- pcmA[j]=mag;
- pcmM[j]=mag+_ang;
- }
-
- }
-}
-#endif
-
-static int mapping0_inverse(vorbis_block *vb,vorbis_look_mapping *l){
- vorbis_dsp_state *vd=vb->vd;
- vorbis_info *vi=vd->vi;
- codec_setup_info *ci=(codec_setup_info *)vi->codec_setup;
- vorbis_look_mapping0 *look=(vorbis_look_mapping0 *)l;
- vorbis_info_mapping0 *info=look->map;
-
- int i,j;
- long n=vb->pcmend=ci->blocksizes[vb->W];
-
- /* bounded mapping arrays instead of using alloca();
- avoids memory leak; we can only deal with stereo anyway */
- ogg_int32_t *pcmbundle[CHANNELS];
- int zerobundle[CHANNELS];
- int nonzero[CHANNELS];
- void *floormemo[CHANNELS];
-
- /* time domain information decode (note that applying the
- information would have to happen later; we'll probably add a
- function entry to the harness for that later */
- /* NOT IMPLEMENTED */
-
- /* recover the spectral envelope; store it in the PCM vector for now */
- for(i=0;i<vi->channels;i++){
- int submap=info->chmuxlist[i];
- floormemo[i]=look->floor_func[submap]->
- inverse1(vb,look->floor_look[submap]);
- if(floormemo[i])
- nonzero[i]=1;
- else
- nonzero[i]=0;
- memset(vd->floors + i * ci->blocksizes[vb->W]/2,0,sizeof(ogg_int32_t)*n/2);
- }
-
- /* channel coupling can 'dirty' the nonzero listing */
- for(i=0;i<info->coupling_steps;i++){
- if(nonzero[info->coupling_mag[i]] ||
- nonzero[info->coupling_ang[i]]){
- nonzero[info->coupling_mag[i]]=1;
- nonzero[info->coupling_ang[i]]=1;
- }
- }
-
- /* recover the residue into our working vectors */
- for(i=0;i<info->submaps;i++){
- int ch_in_bundle=0;
- for(j=0;j<vi->channels;j++){
- if(info->chmuxlist[j]==i){
- if(nonzero[j])
- zerobundle[ch_in_bundle]=1;
- else
- zerobundle[ch_in_bundle]=0;
- pcmbundle[ch_in_bundle++] = vd->floors + j * ci->blocksizes[vb->W]/2;
- }
- }
-
- look->residue_func[i]->inverse(vb,look->residue_look[i],
- pcmbundle,zerobundle,ch_in_bundle);
- }
-
- //for(j=0;j<vi->channels;j++)
- //_analysis_output("coupled",seq+j,vb->pcm[j],-8,n/2,0,0);
-
-
- /* channel coupling */
- for(i=info->coupling_steps-1;i>=0;i--){
- ogg_int32_t *pcmM = vd->floors + info->coupling_mag[i] * ci->blocksizes[vb->W]/2;
- ogg_int32_t *pcmA = vd->floors + info->coupling_ang[i] * ci->blocksizes[vb->W]/2;
- channel_couple(pcmM,pcmA,n);
- }
-
- //for(j=0;j<vi->channels;j++)
- //_analysis_output("residue",seq+j,vb->pcm[j],-8,n/2,0,0);
-
- //for(j=0;j<vi->channels;j++)
- //_analysis_output("mdct",seq+j,vb->pcm[j],-24,n/2,0,1);
-
- /* transform the PCM data; takes PCM vector, vb; modifies PCM vector */
- /* only MDCT right now.... */
- for(i=0;i<vi->channels;i++){
- ogg_int32_t *pcm = vd->floors + i*ci->blocksizes[vb->W]/2;
- int submap=info->chmuxlist[i];
-
- if(nonzero[i]) {
- /* compute and apply spectral envelope */
- look->floor_func[submap]->
- inverse2(vb,look->floor_look[submap],floormemo[i],pcm);
-
- ff_imdct_half(ci->blocksizes_nbits[vb->W],
- (int32_t*)vd->residues[vd->ri] + i*ci->blocksizes[vb->W]/2,
- (int32_t*)&vd->floors[i*ci->blocksizes[vb->W]/2]);
- }
- else
- memset(vd->residues[vd->ri] + i*ci->blocksizes[vb->W]/2, 0, sizeof(ogg_int32_t)*n/2);
- }
-
- //for(j=0;j<vi->channels;j++)
- //_analysis_output("imdct",seq+j,vb->pcm[j],-24,n,0,0);
-
- //for(j=0;j<vi->channels;j++)
- //_analysis_output("window",seq+j,vb->pcm[j],-24,n,0,0);
-
- //seq+=vi->channels;
- /* all done! */
- return(0);
-}
-
-/* export hooks */
-const vorbis_func_mapping mapping0_exportbundle ICONST_ATTR ={
- &mapping0_unpack,
- &mapping0_look,
- &mapping0_free_info,
- &mapping0_free_look,
- &mapping0_inverse
-};
-
generated by cgit (git 2.34.1) at 2024-04-18 00:43:21 +0000