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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /media/libtremor/lib | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'media/libtremor/lib')
26 files changed, 7921 insertions, 0 deletions
diff --git a/media/libtremor/lib/asm_arm.h b/media/libtremor/lib/asm_arm.h new file mode 100644 index 000000000..c3bda005c --- /dev/null +++ b/media/libtremor/lib/asm_arm.h @@ -0,0 +1,245 @@ +/******************************************************************** + * * + * 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: arm7 and later wide math functions + + ********************************************************************/ + +#ifdef _ARM_ASSEM_ + +#if !defined(_V_WIDE_MATH) && !defined(_LOW_ACCURACY_) +#define _V_WIDE_MATH + +static inline ogg_int32_t MULT32(ogg_int32_t x, ogg_int32_t y) { + int lo,hi; + asm volatile("smull\t%0, %1, %2, %3" + : "=&r"(lo),"=&r"(hi) + : "%r"(x),"r"(y) + : "cc"); + return(hi); +} + +static inline ogg_int32_t MULT31(ogg_int32_t x, ogg_int32_t y) { + return MULT32(x,y)<<1; +} + +static inline ogg_int32_t MULT31_SHIFT15(ogg_int32_t x, ogg_int32_t y) { + int lo,hi; + asm volatile("smull %0, %1, %2, %3\n\t" + "movs %0, %0, lsr #15\n\t" + "adc %1, %0, %1, lsl #17\n\t" + : "=&r"(lo),"=&r"(hi) + : "%r"(x),"r"(y) + : "cc"); + return(hi); +} + +#define MB() asm volatile ("" : : : "memory") + +static inline void XPROD32(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + int x1, y1, l; + asm( "smull %0, %1, %4, %6\n\t" + "smlal %0, %1, %5, %7\n\t" + "rsb %3, %4, #0\n\t" + "smull %0, %2, %5, %6\n\t" + "smlal %0, %2, %3, %7" + : "=&r" (l), "=&r" (x1), "=&r" (y1), "=r" (a) + : "3" (a), "r" (b), "r" (t), "r" (v) + : "cc" ); + *x = x1; + MB(); + *y = y1; +} + +static inline void XPROD31(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + int x1, y1, l; + asm( "smull %0, %1, %4, %6\n\t" + "smlal %0, %1, %5, %7\n\t" + "rsb %3, %4, #0\n\t" + "smull %0, %2, %5, %6\n\t" + "smlal %0, %2, %3, %7" + : "=&r" (l), "=&r" (x1), "=&r" (y1), "=r" (a) + : "3" (a), "r" (b), "r" (t), "r" (v) + : "cc" ); + *x = x1 << 1; + MB(); + *y = y1 << 1; +} + +static inline void XNPROD31(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + int x1, y1, l; + asm( "rsb %2, %4, #0\n\t" + "smull %0, %1, %3, %5\n\t" + "smlal %0, %1, %2, %6\n\t" + "smull %0, %2, %4, %5\n\t" + "smlal %0, %2, %3, %6" + : "=&r" (l), "=&r" (x1), "=&r" (y1) + : "r" (a), "r" (b), "r" (t), "r" (v) + : "cc" ); + *x = x1 << 1; + MB(); + *y = y1 << 1; +} + +#endif + +#ifndef _V_CLIP_MATH +#define _V_CLIP_MATH + +static inline ogg_int32_t CLIP_TO_15(ogg_int32_t x) { + int tmp; + asm volatile("subs %1, %0, #32768\n\t" + "movpl %0, #0x7f00\n\t" + "orrpl %0, %0, #0xff\n" + "adds %1, %0, #32768\n\t" + "movmi %0, #0x8000" + : "+r"(x),"=r"(tmp) + : + : "cc"); + return(x); +} + +#endif + +#ifndef _V_LSP_MATH_ASM +#define _V_LSP_MATH_ASM + +static inline void lsp_loop_asm(ogg_uint32_t *qip,ogg_uint32_t *pip, + ogg_int32_t *qexpp, + ogg_int32_t *ilsp,ogg_int32_t wi, + ogg_int32_t m){ + + ogg_uint32_t qi=*qip,pi=*pip; + ogg_int32_t qexp=*qexpp; + + asm("mov r0,%3;" + "movs r1,%5,asr#1;" + "add r0,r0,r1,lsl#3;" + "beq 2f;\n" + "1:" + + "ldmdb r0!,{r1,r3};" + "subs r1,r1,%4;" //ilsp[j]-wi + "rsbmi r1,r1,#0;" //labs(ilsp[j]-wi) + "umull %0,r2,r1,%0;" //qi*=labs(ilsp[j]-wi) + + "subs r1,r3,%4;" //ilsp[j+1]-wi + "rsbmi r1,r1,#0;" //labs(ilsp[j+1]-wi) + "umull %1,r3,r1,%1;" //pi*=labs(ilsp[j+1]-wi) + + "cmn r2,r3;" // shift down 16? + "beq 0f;" + "add %2,%2,#16;" + "mov %0,%0,lsr #16;" + "orr %0,%0,r2,lsl #16;" + "mov %1,%1,lsr #16;" + "orr %1,%1,r3,lsl #16;" + "0:" + "cmp r0,%3;\n" + "bhi 1b;\n" + + "2:" + // odd filter assymetry + "ands r0,%5,#1;\n" + "beq 3f;\n" + "add r0,%3,%5,lsl#2;\n" + + "ldr r1,[r0,#-4];\n" + "mov r0,#0x4000;\n" + + "subs r1,r1,%4;\n" //ilsp[j]-wi + "rsbmi r1,r1,#0;\n" //labs(ilsp[j]-wi) + "umull %0,r2,r1,%0;\n" //qi*=labs(ilsp[j]-wi) + "umull %1,r3,r0,%1;\n" //pi*=labs(ilsp[j+1]-wi) + + "cmn r2,r3;\n" // shift down 16? + "beq 3f;\n" + "add %2,%2,#16;\n" + "mov %0,%0,lsr #16;\n" + "orr %0,%0,r2,lsl #16;\n" + "mov %1,%1,lsr #16;\n" + "orr %1,%1,r3,lsl #16;\n" + + //qi=(pi>>shift)*labs(ilsp[j]-wi); + //pi=(qi>>shift)*labs(ilsp[j+1]-wi); + //qexp+=shift; + + //} + + /* normalize to max 16 sig figs */ + "3:" + "mov r2,#0;" + "orr r1,%0,%1;" + "tst r1,#0xff000000;" + "addne r2,r2,#8;" + "movne r1,r1,lsr #8;" + "tst r1,#0x00f00000;" + "addne r2,r2,#4;" + "movne r1,r1,lsr #4;" + "tst r1,#0x000c0000;" + "addne r2,r2,#2;" + "movne r1,r1,lsr #2;" + "tst r1,#0x00020000;" + "addne r2,r2,#1;" + "movne r1,r1,lsr #1;" + "tst r1,#0x00010000;" + "addne r2,r2,#1;" + "mov %0,%0,lsr r2;" + "mov %1,%1,lsr r2;" + "add %2,%2,r2;" + + : "+r"(qi),"+r"(pi),"+r"(qexp) + : "r"(ilsp),"r"(wi),"r"(m) + : "r0","r1","r2","r3","cc"); + + *qip=qi; + *pip=pi; + *qexpp=qexp; +} + +static inline void lsp_norm_asm(ogg_uint32_t *qip,ogg_int32_t *qexpp){ + + ogg_uint32_t qi=*qip; + ogg_int32_t qexp=*qexpp; + + asm("tst %0,#0x0000ff00;" + "moveq %0,%0,lsl #8;" + "subeq %1,%1,#8;" + "tst %0,#0x0000f000;" + "moveq %0,%0,lsl #4;" + "subeq %1,%1,#4;" + "tst %0,#0x0000c000;" + "moveq %0,%0,lsl #2;" + "subeq %1,%1,#2;" + "tst %0,#0x00008000;" + "moveq %0,%0,lsl #1;" + "subeq %1,%1,#1;" + : "+r"(qi),"+r"(qexp) + : + : "cc"); + *qip=qi; + *qexpp=qexp; +} + +#endif +#endif + diff --git a/media/libtremor/lib/backends.h b/media/libtremor/lib/backends.h new file mode 100644 index 000000000..52024219b --- /dev/null +++ b/media/libtremor/lib/backends.h @@ -0,0 +1,131 @@ +/******************************************************************** + * * + * 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: backend and mapping structures + + ********************************************************************/ + +/* this is exposed up here because we need it for static modes. + Lookups for each backend aren't exposed because there's no reason + to do so */ + +#ifndef _vorbis_backend_h_ +#define _vorbis_backend_h_ + +#include "codec_internal.h" + +/* this would all be simpler/shorter with templates, but.... */ +/* Transform backend generic *************************************/ + +/* only mdct right now. Flesh it out more if we ever transcend mdct + in the transform domain */ + +/* Floor backend generic *****************************************/ +typedef struct{ + vorbis_info_floor *(*unpack)(vorbis_info *,oggpack_buffer *); + vorbis_look_floor *(*look) (vorbis_dsp_state *,vorbis_info_mode *, + vorbis_info_floor *); + void (*free_info) (vorbis_info_floor *); + void (*free_look) (vorbis_look_floor *); + void *(*inverse1) (struct vorbis_block *,vorbis_look_floor *); + int (*inverse2) (struct vorbis_block *,vorbis_look_floor *, + void *buffer,ogg_int32_t *); +} vorbis_func_floor; + +typedef struct{ + int order; + long rate; + long barkmap; + + int ampbits; + int ampdB; + + int numbooks; /* <= 16 */ + int books[16]; + +} vorbis_info_floor0; + +#define VIF_POSIT 63 +#define VIF_CLASS 16 +#define VIF_PARTS 31 +typedef struct{ + int partitions; /* 0 to 31 */ + int partitionclass[VIF_PARTS]; /* 0 to 15 */ + + int class_dim[VIF_CLASS]; /* 1 to 8 */ + int class_subs[VIF_CLASS]; /* 0,1,2,3 (bits: 1<<n poss) */ + int class_book[VIF_CLASS]; /* subs ^ dim entries */ + int class_subbook[VIF_CLASS][8]; /* [VIF_CLASS][subs] */ + + + int mult; /* 1 2 3 or 4 */ + int postlist[VIF_POSIT+2]; /* first two implicit */ + +} vorbis_info_floor1; + +/* Residue backend generic *****************************************/ +typedef struct{ + vorbis_info_residue *(*unpack)(vorbis_info *,oggpack_buffer *); + vorbis_look_residue *(*look) (vorbis_dsp_state *,vorbis_info_mode *, + vorbis_info_residue *); + void (*free_info) (vorbis_info_residue *); + void (*free_look) (vorbis_look_residue *); + int (*inverse) (struct vorbis_block *,vorbis_look_residue *, + ogg_int32_t **,int *,int); +} vorbis_func_residue; + +typedef struct vorbis_info_residue0{ +/* block-partitioned VQ coded straight residue */ + long begin; + long end; + + /* first stage (lossless partitioning) */ + int grouping; /* group n vectors per partition */ + int partitions; /* possible codebooks for a partition */ + int partvals; /* partitions ^ groupbook dim */ + int groupbook; /* huffbook for partitioning */ + int secondstages[64]; /* expanded out to pointers in lookup */ + int booklist[512]; /* list of second stage books */ +} vorbis_info_residue0; + +/* Mapping backend generic *****************************************/ +typedef struct{ + vorbis_info_mapping *(*unpack)(vorbis_info *,oggpack_buffer *); + vorbis_look_mapping *(*look) (vorbis_dsp_state *,vorbis_info_mode *, + vorbis_info_mapping *); + void (*free_info) (vorbis_info_mapping *); + void (*free_look) (vorbis_look_mapping *); + int (*inverse) (struct vorbis_block *vb,vorbis_look_mapping *); +} vorbis_func_mapping; + +typedef struct vorbis_info_mapping0{ + int submaps; /* <= 16 */ + int chmuxlist[256]; /* up to 256 channels in a Vorbis stream */ + + int floorsubmap[16]; /* [mux] submap to floors */ + int residuesubmap[16]; /* [mux] submap to residue */ + + int psy[2]; /* by blocktype; impulse/padding for short, + transition/normal for long */ + + int coupling_steps; + int coupling_mag[256]; + int coupling_ang[256]; +} vorbis_info_mapping0; + +#endif + + + + + diff --git a/media/libtremor/lib/block.h b/media/libtremor/lib/block.h new file mode 100644 index 000000000..5e193543d --- /dev/null +++ b/media/libtremor/lib/block.h @@ -0,0 +1,24 @@ +/******************************************************************** + * * + * 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 1994-2008 * + * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * + * * + ******************************************************************** + + function: shared block functions + + ********************************************************************/ + +#ifndef _V_BLOCK_ +#define _V_BLOCK_ + +extern void _vorbis_block_ripcord(vorbis_block *vb); +extern void *_vorbis_block_alloc(vorbis_block *vb,long bytes); + +#endif diff --git a/media/libtremor/lib/codebook.h b/media/libtremor/lib/codebook.h new file mode 100644 index 000000000..bb1394260 --- /dev/null +++ b/media/libtremor/lib/codebook.h @@ -0,0 +1,101 @@ +/******************************************************************** + * * + * 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: basic shared codebook operations + + ********************************************************************/ + +#ifndef _V_CODEBOOK_H_ +#define _V_CODEBOOK_H_ + +#include <ogg/ogg.h> + +/* This structure encapsulates huffman and VQ style encoding books; it + doesn't do anything specific to either. + + valuelist/quantlist are nonNULL (and q_* significant) only if + there's entry->value mapping to be done. + + If encode-side mapping must be done (and thus the entry needs to be + hunted), the auxiliary encode pointer will point to a decision + tree. This is true of both VQ and huffman, but is mostly useful + with VQ. + +*/ + +typedef struct static_codebook{ + long dim; /* codebook dimensions (elements per vector) */ + long entries; /* codebook entries */ + long *lengthlist; /* codeword lengths in bits */ + + /* mapping ***************************************************************/ + int maptype; /* 0=none + 1=implicitly populated values from map column + 2=listed arbitrary values */ + + /* The below does a linear, single monotonic sequence mapping. */ + long q_min; /* packed 32 bit float; quant value 0 maps to minval */ + long q_delta; /* packed 32 bit float; val 1 - val 0 == delta */ + int q_quant; /* bits: 0 < quant <= 16 */ + int q_sequencep; /* bitflag */ + + long *quantlist; /* map == 1: (int)(entries^(1/dim)) element column map + map == 2: list of dim*entries quantized entry vals + */ +} static_codebook; + +typedef struct codebook{ + long dim; /* codebook dimensions (elements per vector) */ + long entries; /* codebook entries */ + long used_entries; /* populated codebook entries */ + + /* the below are ordered by bitreversed codeword and only used + entries are populated */ + int binarypoint; + ogg_int32_t *valuelist; /* list of dim*entries actual entry values */ + ogg_uint32_t *codelist; /* list of bitstream codewords for each entry */ + + int *dec_index; + char *dec_codelengths; + ogg_uint32_t *dec_firsttable; + int dec_firsttablen; + int dec_maxlength; + + long q_min; /* packed 32 bit float; quant value 0 maps to minval */ + long q_delta; /* packed 32 bit float; val 1 - val 0 == delta */ + +} codebook; + +extern void vorbis_staticbook_destroy(static_codebook *b); +extern int vorbis_book_init_decode(codebook *dest,const static_codebook *source); + +extern void vorbis_book_clear(codebook *b); +extern long _book_maptype1_quantvals(const static_codebook *b); + +extern static_codebook *vorbis_staticbook_unpack(oggpack_buffer *b); + +extern long vorbis_book_decode(codebook *book, oggpack_buffer *b); +extern long vorbis_book_decodevs_add(codebook *book, ogg_int32_t *a, + oggpack_buffer *b,int n,int point); +extern long vorbis_book_decodev_set(codebook *book, ogg_int32_t *a, + oggpack_buffer *b,int n,int point); +extern long vorbis_book_decodev_add(codebook *book, ogg_int32_t *a, + oggpack_buffer *b,int n,int point); +extern long vorbis_book_decodevv_add(codebook *book, ogg_int32_t **a, + long off,int ch, + oggpack_buffer *b,int n,int point); + +extern int _ilog(unsigned int v); + + +#endif diff --git a/media/libtremor/lib/codec_internal.h b/media/libtremor/lib/codec_internal.h new file mode 100644 index 000000000..3ca7f5472 --- /dev/null +++ b/media/libtremor/lib/codec_internal.h @@ -0,0 +1,92 @@ +/******************************************************************** + * * + * 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: libvorbis codec headers + + ********************************************************************/ + +#ifndef _V_CODECI_H_ +#define _V_CODECI_H_ + +#include "codebook.h" + +typedef void vorbis_look_mapping; +typedef void vorbis_look_floor; +typedef void vorbis_look_residue; +typedef void vorbis_look_transform; + +/* mode ************************************************************/ +typedef struct { + int blockflag; + int windowtype; + int transformtype; + int mapping; +} vorbis_info_mode; + +typedef void vorbis_info_floor; +typedef void vorbis_info_residue; +typedef void vorbis_info_mapping; + +typedef struct private_state { + /* local lookup storage */ + const void *window[2]; + + /* backend lookups are tied to the mode, not the backend or naked mapping */ + int modebits; + vorbis_look_mapping **mode; + + ogg_int64_t sample_count; + +} private_state; + +/* codec_setup_info contains all the setup information specific to the + specific compression/decompression mode in progress (eg, + psychoacoustic settings, channel setup, options, codebook + etc). +*********************************************************************/ + +typedef struct codec_setup_info { + + /* Vorbis supports only short and long blocks, but allows the + encoder to choose the sizes */ + + long blocksizes[2]; + + /* modes are the primary means of supporting on-the-fly different + blocksizes, different channel mappings (LR or M/A), + different residue backends, etc. Each mode consists of a + blocksize flag and a mapping (along with the mapping setup */ + + int modes; + int maps; + int times; + int floors; + int residues; + int books; + + vorbis_info_mode *mode_param[64]; + int map_type[64]; + vorbis_info_mapping *map_param[64]; + int time_type[64]; + int floor_type[64]; + vorbis_info_floor *floor_param[64]; + int residue_type[64]; + vorbis_info_residue *residue_param[64]; + static_codebook *book_param[256]; + codebook *fullbooks; + + int passlimit[32]; /* iteration limit per couple/quant pass */ + int coupling_passes; +} codec_setup_info; + +#endif diff --git a/media/libtremor/lib/lsp_lookup.h b/media/libtremor/lib/lsp_lookup.h new file mode 100644 index 000000000..7162392b8 --- /dev/null +++ b/media/libtremor/lib/lsp_lookup.h @@ -0,0 +1,136 @@ +/******************************************************************** + * * + * 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: lookup data + + ********************************************************************/ + +#ifndef _V_LOOKUP_DATA_H_ +#define _V_LOOKUP_DATA_H_ + +#include <ogg/os_types.h> + +#define FROMdB_LOOKUP_SZ 35 +#define FROMdB2_LOOKUP_SZ 32 +#define FROMdB_SHIFT 5 +#define FROMdB2_SHIFT 3 +#define FROMdB2_MASK 31 + +static const ogg_int32_t FROMdB_LOOKUP[FROMdB_LOOKUP_SZ]={ + 0x003fffff, 0x0028619b, 0x00197a96, 0x0010137a, + 0x000a24b0, 0x00066666, 0x000409c3, 0x00028c42, + 0x00019b8c, 0x000103ab, 0x0000a3d7, 0x00006760, + 0x0000413a, 0x00002928, 0x000019f8, 0x00001062, + 0x00000a56, 0x00000686, 0x0000041e, 0x00000299, + 0x000001a3, 0x00000109, 0x000000a7, 0x00000069, + 0x00000042, 0x0000002a, 0x0000001a, 0x00000011, + 0x0000000b, 0x00000007, 0x00000004, 0x00000003, + 0x00000002, 0x00000001, 0x00000001}; + +static const ogg_int32_t FROMdB2_LOOKUP[FROMdB2_LOOKUP_SZ]={ + 0x000001fc, 0x000001f5, 0x000001ee, 0x000001e7, + 0x000001e0, 0x000001d9, 0x000001d2, 0x000001cc, + 0x000001c5, 0x000001bf, 0x000001b8, 0x000001b2, + 0x000001ac, 0x000001a6, 0x000001a0, 0x0000019a, + 0x00000194, 0x0000018e, 0x00000188, 0x00000183, + 0x0000017d, 0x00000178, 0x00000172, 0x0000016d, + 0x00000168, 0x00000163, 0x0000015e, 0x00000159, + 0x00000154, 0x0000014f, 0x0000014a, 0x00000145, +}; + +#define INVSQ_LOOKUP_I_SHIFT 10 +#define INVSQ_LOOKUP_I_MASK 1023 +static const long INVSQ_LOOKUP_I[64+1]={ + 92682, 91966, 91267, 90583, + 89915, 89261, 88621, 87995, + 87381, 86781, 86192, 85616, + 85051, 84497, 83953, 83420, + 82897, 82384, 81880, 81385, + 80899, 80422, 79953, 79492, + 79039, 78594, 78156, 77726, + 77302, 76885, 76475, 76072, + 75674, 75283, 74898, 74519, + 74146, 73778, 73415, 73058, + 72706, 72359, 72016, 71679, + 71347, 71019, 70695, 70376, + 70061, 69750, 69444, 69141, + 68842, 68548, 68256, 67969, + 67685, 67405, 67128, 66855, + 66585, 66318, 66054, 65794, + 65536, +}; + +static const long INVSQ_LOOKUP_IDel[64]={ + 716, 699, 684, 668, + 654, 640, 626, 614, + 600, 589, 576, 565, + 554, 544, 533, 523, + 513, 504, 495, 486, + 477, 469, 461, 453, + 445, 438, 430, 424, + 417, 410, 403, 398, + 391, 385, 379, 373, + 368, 363, 357, 352, + 347, 343, 337, 332, + 328, 324, 319, 315, + 311, 306, 303, 299, + 294, 292, 287, 284, + 280, 277, 273, 270, + 267, 264, 260, 258, +}; + +#define COS_LOOKUP_I_SHIFT 9 +#define COS_LOOKUP_I_MASK 511 +#define COS_LOOKUP_I_SZ 128 +static const ogg_int32_t COS_LOOKUP_I[COS_LOOKUP_I_SZ+1]={ + 16384, 16379, 16364, 16340, + 16305, 16261, 16207, 16143, + 16069, 15986, 15893, 15791, + 15679, 15557, 15426, 15286, + 15137, 14978, 14811, 14635, + 14449, 14256, 14053, 13842, + 13623, 13395, 13160, 12916, + 12665, 12406, 12140, 11866, + 11585, 11297, 11003, 10702, + 10394, 10080, 9760, 9434, + 9102, 8765, 8423, 8076, + 7723, 7366, 7005, 6639, + 6270, 5897, 5520, 5139, + 4756, 4370, 3981, 3590, + 3196, 2801, 2404, 2006, + 1606, 1205, 804, 402, + 0, -401, -803, -1204, + -1605, -2005, -2403, -2800, + -3195, -3589, -3980, -4369, + -4755, -5138, -5519, -5896, + -6269, -6638, -7004, -7365, + -7722, -8075, -8422, -8764, + -9101, -9433, -9759, -10079, + -10393, -10701, -11002, -11296, + -11584, -11865, -12139, -12405, + -12664, -12915, -13159, -13394, + -13622, -13841, -14052, -14255, + -14448, -14634, -14810, -14977, + -15136, -15285, -15425, -15556, + -15678, -15790, -15892, -15985, + -16068, -16142, -16206, -16260, + -16304, -16339, -16363, -16378, + -16383, +}; + +#endif + + + + + diff --git a/media/libtremor/lib/mdct.h b/media/libtremor/lib/mdct.h new file mode 100644 index 000000000..6d8890720 --- /dev/null +++ b/media/libtremor/lib/mdct.h @@ -0,0 +1,52 @@ +/******************************************************************** + * * + * 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: modified discrete cosine transform prototypes + + ********************************************************************/ + +#ifndef _OGG_mdct_H_ +#define _OGG_mdct_H_ + +#include "ivorbiscodec.h" +#include "misc.h" + +#define DATA_TYPE ogg_int32_t +#define REG_TYPE register ogg_int32_t + +#ifdef _LOW_ACCURACY_ +#define cPI3_8 (0x0062) +#define cPI2_8 (0x00b5) +#define cPI1_8 (0x00ed) +#else +#define cPI3_8 (0x30fbc54d) +#define cPI2_8 (0x5a82799a) +#define cPI1_8 (0x7641af3d) +#endif + +extern void mdct_forward(int n, DATA_TYPE *in, DATA_TYPE *out); +extern void mdct_backward(int n, DATA_TYPE *in, DATA_TYPE *out); + +#endif + + + + + + + + + + + + diff --git a/media/libtremor/lib/mdct_lookup.h b/media/libtremor/lib/mdct_lookup.h new file mode 100644 index 000000000..ee4f101c2 --- /dev/null +++ b/media/libtremor/lib/mdct_lookup.h @@ -0,0 +1,540 @@ +/******************************************************************** + * * + * 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: sin,cos lookup tables + + ********************************************************************/ + +#include "misc.h" + +/* {sin(2*i*PI/4096), cos(2*i*PI/4096)}, with i = 0 to 512 */ +static const LOOKUP_T sincos_lookup0[1026] = { + X(0x00000000), X(0x7fffffff), X(0x003243f5), X(0x7ffff621), + X(0x006487e3), X(0x7fffd886), X(0x0096cbc1), X(0x7fffa72c), + X(0x00c90f88), X(0x7fff6216), X(0x00fb5330), X(0x7fff0943), + X(0x012d96b1), X(0x7ffe9cb2), X(0x015fda03), X(0x7ffe1c65), + X(0x01921d20), X(0x7ffd885a), X(0x01c45ffe), X(0x7ffce093), + X(0x01f6a297), X(0x7ffc250f), X(0x0228e4e2), X(0x7ffb55ce), + X(0x025b26d7), X(0x7ffa72d1), X(0x028d6870), X(0x7ff97c18), + X(0x02bfa9a4), X(0x7ff871a2), X(0x02f1ea6c), X(0x7ff75370), + X(0x03242abf), X(0x7ff62182), X(0x03566a96), X(0x7ff4dbd9), + X(0x0388a9ea), X(0x7ff38274), X(0x03bae8b2), X(0x7ff21553), + X(0x03ed26e6), X(0x7ff09478), X(0x041f6480), X(0x7feeffe1), + X(0x0451a177), X(0x7fed5791), X(0x0483ddc3), X(0x7feb9b85), + X(0x04b6195d), X(0x7fe9cbc0), X(0x04e8543e), X(0x7fe7e841), + X(0x051a8e5c), X(0x7fe5f108), X(0x054cc7b1), X(0x7fe3e616), + X(0x057f0035), X(0x7fe1c76b), X(0x05b137df), X(0x7fdf9508), + X(0x05e36ea9), X(0x7fdd4eec), X(0x0615a48b), X(0x7fdaf519), + X(0x0647d97c), X(0x7fd8878e), X(0x067a0d76), X(0x7fd6064c), + X(0x06ac406f), X(0x7fd37153), X(0x06de7262), X(0x7fd0c8a3), + X(0x0710a345), X(0x7fce0c3e), X(0x0742d311), X(0x7fcb3c23), + X(0x077501be), X(0x7fc85854), X(0x07a72f45), X(0x7fc560cf), + X(0x07d95b9e), X(0x7fc25596), X(0x080b86c2), X(0x7fbf36aa), + X(0x083db0a7), X(0x7fbc040a), X(0x086fd947), X(0x7fb8bdb8), + X(0x08a2009a), X(0x7fb563b3), X(0x08d42699), X(0x7fb1f5fc), + X(0x09064b3a), X(0x7fae7495), X(0x09386e78), X(0x7faadf7c), + X(0x096a9049), X(0x7fa736b4), X(0x099cb0a7), X(0x7fa37a3c), + X(0x09cecf89), X(0x7f9faa15), X(0x0a00ece8), X(0x7f9bc640), + X(0x0a3308bd), X(0x7f97cebd), X(0x0a6522fe), X(0x7f93c38c), + X(0x0a973ba5), X(0x7f8fa4b0), X(0x0ac952aa), X(0x7f8b7227), + X(0x0afb6805), X(0x7f872bf3), X(0x0b2d7baf), X(0x7f82d214), + X(0x0b5f8d9f), X(0x7f7e648c), X(0x0b919dcf), X(0x7f79e35a), + X(0x0bc3ac35), X(0x7f754e80), X(0x0bf5b8cb), X(0x7f70a5fe), + X(0x0c27c389), X(0x7f6be9d4), X(0x0c59cc68), X(0x7f671a05), + X(0x0c8bd35e), X(0x7f62368f), X(0x0cbdd865), X(0x7f5d3f75), + X(0x0cefdb76), X(0x7f5834b7), X(0x0d21dc87), X(0x7f531655), + X(0x0d53db92), X(0x7f4de451), X(0x0d85d88f), X(0x7f489eaa), + X(0x0db7d376), X(0x7f434563), X(0x0de9cc40), X(0x7f3dd87c), + X(0x0e1bc2e4), X(0x7f3857f6), X(0x0e4db75b), X(0x7f32c3d1), + X(0x0e7fa99e), X(0x7f2d1c0e), X(0x0eb199a4), X(0x7f2760af), + X(0x0ee38766), X(0x7f2191b4), X(0x0f1572dc), X(0x7f1baf1e), + X(0x0f475bff), X(0x7f15b8ee), X(0x0f7942c7), X(0x7f0faf25), + X(0x0fab272b), X(0x7f0991c4), X(0x0fdd0926), X(0x7f0360cb), + X(0x100ee8ad), X(0x7efd1c3c), X(0x1040c5bb), X(0x7ef6c418), + X(0x1072a048), X(0x7ef05860), X(0x10a4784b), X(0x7ee9d914), + X(0x10d64dbd), X(0x7ee34636), X(0x11082096), X(0x7edc9fc6), + X(0x1139f0cf), X(0x7ed5e5c6), X(0x116bbe60), X(0x7ecf1837), + X(0x119d8941), X(0x7ec8371a), X(0x11cf516a), X(0x7ec14270), + X(0x120116d5), X(0x7eba3a39), X(0x1232d979), X(0x7eb31e78), + X(0x1264994e), X(0x7eabef2c), X(0x1296564d), X(0x7ea4ac58), + X(0x12c8106f), X(0x7e9d55fc), X(0x12f9c7aa), X(0x7e95ec1a), + X(0x132b7bf9), X(0x7e8e6eb2), X(0x135d2d53), X(0x7e86ddc6), + X(0x138edbb1), X(0x7e7f3957), X(0x13c0870a), X(0x7e778166), + X(0x13f22f58), X(0x7e6fb5f4), X(0x1423d492), X(0x7e67d703), + X(0x145576b1), X(0x7e5fe493), X(0x148715ae), X(0x7e57dea7), + X(0x14b8b17f), X(0x7e4fc53e), X(0x14ea4a1f), X(0x7e47985b), + X(0x151bdf86), X(0x7e3f57ff), X(0x154d71aa), X(0x7e37042a), + X(0x157f0086), X(0x7e2e9cdf), X(0x15b08c12), X(0x7e26221f), + 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X(0x5842dd54), X(0x5cb420e0), X(0x58673e1b), X(0x5c9170bf), + X(0x588b9140), X(0x5c6eb258), X(0x58afd6bd), X(0x5c4be5b0), + X(0x58d40e8c), X(0x5c290acc), X(0x58f838a9), X(0x5c0621b2), + X(0x591c550e), X(0x5be32a67), X(0x594063b5), X(0x5bc024f0), + X(0x59646498), X(0x5b9d1154), X(0x598857b2), X(0x5b79ef96), + X(0x59ac3cfd), X(0x5b56bfbd), X(0x59d01475), X(0x5b3381ce), + X(0x59f3de12), X(0x5b1035cf), X(0x5a1799d1), X(0x5aecdbc5), + X(0x5a3b47ab), X(0x5ac973b5), X(0x5a5ee79a), X(0x5aa5fda5), + X(0x5a82799a), X(0x5a82799a) + }; + + /* {sin((2*i+1)*PI/4096), cos((2*i+1)*PI/4096)}, with i = 0 to 511 */ +static const LOOKUP_T sincos_lookup1[1024] = { + X(0x001921fb), X(0x7ffffd88), X(0x004b65ee), X(0x7fffe9cb), + X(0x007da9d4), X(0x7fffc251), X(0x00afeda8), X(0x7fff8719), + X(0x00e23160), X(0x7fff3824), X(0x011474f6), X(0x7ffed572), + X(0x0146b860), X(0x7ffe5f03), X(0x0178fb99), X(0x7ffdd4d7), + X(0x01ab3e97), X(0x7ffd36ee), X(0x01dd8154), X(0x7ffc8549), + X(0x020fc3c6), X(0x7ffbbfe6), X(0x024205e8), X(0x7ffae6c7), + X(0x027447b0), X(0x7ff9f9ec), X(0x02a68917), X(0x7ff8f954), + X(0x02d8ca16), X(0x7ff7e500), X(0x030b0aa4), X(0x7ff6bcf0), + X(0x033d4abb), X(0x7ff58125), X(0x036f8a51), X(0x7ff4319d), + X(0x03a1c960), X(0x7ff2ce5b), X(0x03d407df), X(0x7ff1575d), + X(0x040645c7), X(0x7fefcca4), X(0x04388310), X(0x7fee2e30), + X(0x046abfb3), X(0x7fec7c02), X(0x049cfba7), X(0x7feab61a), + X(0x04cf36e5), X(0x7fe8dc78), X(0x05017165), X(0x7fe6ef1c), + X(0x0533ab20), X(0x7fe4ee06), X(0x0565e40d), X(0x7fe2d938), + X(0x05981c26), X(0x7fe0b0b1), X(0x05ca5361), X(0x7fde7471), + X(0x05fc89b8), X(0x7fdc247a), X(0x062ebf22), X(0x7fd9c0ca), + X(0x0660f398), X(0x7fd74964), X(0x06932713), X(0x7fd4be46), + X(0x06c5598a), X(0x7fd21f72), X(0x06f78af6), X(0x7fcf6ce8), + X(0x0729bb4e), X(0x7fcca6a7), X(0x075bea8c), X(0x7fc9ccb2), + X(0x078e18a7), X(0x7fc6df08), X(0x07c04598), X(0x7fc3dda9), + X(0x07f27157), X(0x7fc0c896), X(0x08249bdd), X(0x7fbd9fd0), + X(0x0856c520), X(0x7fba6357), X(0x0888ed1b), X(0x7fb7132b), + X(0x08bb13c5), X(0x7fb3af4e), X(0x08ed3916), X(0x7fb037bf), + X(0x091f5d06), X(0x7facac7f), X(0x09517f8f), X(0x7fa90d8e), + X(0x0983a0a7), X(0x7fa55aee), X(0x09b5c048), X(0x7fa1949e), + X(0x09e7de6a), X(0x7f9dbaa0), X(0x0a19fb04), X(0x7f99ccf4), + X(0x0a4c1610), X(0x7f95cb9a), X(0x0a7e2f85), X(0x7f91b694), + X(0x0ab0475c), X(0x7f8d8de1), X(0x0ae25d8d), X(0x7f895182), + X(0x0b147211), X(0x7f850179), X(0x0b4684df), X(0x7f809dc5), + X(0x0b7895f0), X(0x7f7c2668), X(0x0baaa53b), X(0x7f779b62), + X(0x0bdcb2bb), X(0x7f72fcb4), X(0x0c0ebe66), X(0x7f6e4a5e), + X(0x0c40c835), X(0x7f698461), X(0x0c72d020), X(0x7f64aabf), + X(0x0ca4d620), X(0x7f5fbd77), X(0x0cd6da2d), X(0x7f5abc8a), + X(0x0d08dc3f), X(0x7f55a7fa), X(0x0d3adc4e), X(0x7f507fc7), + X(0x0d6cda53), X(0x7f4b43f2), X(0x0d9ed646), X(0x7f45f47b), + X(0x0dd0d01f), X(0x7f409164), X(0x0e02c7d7), X(0x7f3b1aad), + X(0x0e34bd66), X(0x7f359057), X(0x0e66b0c3), X(0x7f2ff263), + X(0x0e98a1e9), X(0x7f2a40d2), X(0x0eca90ce), X(0x7f247ba5), + X(0x0efc7d6b), X(0x7f1ea2dc), X(0x0f2e67b8), X(0x7f18b679), + X(0x0f604faf), X(0x7f12b67c), X(0x0f923546), X(0x7f0ca2e7), + X(0x0fc41876), X(0x7f067bba), X(0x0ff5f938), X(0x7f0040f6), + X(0x1027d784), X(0x7ef9f29d), X(0x1059b352), X(0x7ef390ae), + X(0x108b8c9b), X(0x7eed1b2c), X(0x10bd6356), X(0x7ee69217), + X(0x10ef377d), X(0x7edff570), X(0x11210907), X(0x7ed94538), + X(0x1152d7ed), X(0x7ed28171), X(0x1184a427), X(0x7ecbaa1a), + X(0x11b66dad), X(0x7ec4bf36), X(0x11e83478), X(0x7ebdc0c6), + X(0x1219f880), X(0x7eb6aeca), X(0x124bb9be), X(0x7eaf8943), + X(0x127d7829), X(0x7ea85033), X(0x12af33ba), X(0x7ea1039b), + X(0x12e0ec6a), X(0x7e99a37c), X(0x1312a230), X(0x7e922fd6), + X(0x13445505), X(0x7e8aa8ac), X(0x137604e2), X(0x7e830dff), + X(0x13a7b1bf), X(0x7e7b5fce), X(0x13d95b93), X(0x7e739e1d), + X(0x140b0258), X(0x7e6bc8eb), X(0x143ca605), X(0x7e63e03b), + X(0x146e4694), X(0x7e5be40c), X(0x149fe3fc), X(0x7e53d462), + X(0x14d17e36), X(0x7e4bb13c), X(0x1503153a), X(0x7e437a9c), + X(0x1534a901), X(0x7e3b3083), X(0x15663982), X(0x7e32d2f4), + X(0x1597c6b7), X(0x7e2a61ed), X(0x15c95097), X(0x7e21dd73), + X(0x15fad71b), X(0x7e194584), X(0x162c5a3b), X(0x7e109a24), + X(0x165dd9f0), X(0x7e07db52), X(0x168f5632), X(0x7dff0911), + X(0x16c0cef9), X(0x7df62362), X(0x16f2443e), X(0x7ded2a47), + X(0x1723b5f9), X(0x7de41dc0), X(0x17552422), X(0x7ddafdce), + X(0x17868eb3), X(0x7dd1ca75), X(0x17b7f5a3), X(0x7dc883b4), + X(0x17e958ea), X(0x7dbf298d), X(0x181ab881), X(0x7db5bc02), + X(0x184c1461), X(0x7dac3b15), X(0x187d6c82), X(0x7da2a6c6), + X(0x18aec0db), X(0x7d98ff17), X(0x18e01167), X(0x7d8f4409), + X(0x19115e1c), X(0x7d85759f), X(0x1942a6f3), X(0x7d7b93da), + X(0x1973ebe6), X(0x7d719eba), X(0x19a52ceb), X(0x7d679642), + X(0x19d669fc), X(0x7d5d7a74), X(0x1a07a311), X(0x7d534b50), + X(0x1a38d823), X(0x7d4908d9), X(0x1a6a0929), X(0x7d3eb30f), + X(0x1a9b361d), X(0x7d3449f5), X(0x1acc5ef6), X(0x7d29cd8c), + X(0x1afd83ad), X(0x7d1f3dd6), X(0x1b2ea43a), X(0x7d149ad5), + X(0x1b5fc097), X(0x7d09e489), X(0x1b90d8bb), X(0x7cff1af5), + X(0x1bc1ec9e), X(0x7cf43e1a), X(0x1bf2fc3a), X(0x7ce94dfb), + X(0x1c240786), X(0x7cde4a98), X(0x1c550e7c), X(0x7cd333f3), + X(0x1c861113), X(0x7cc80a0f), X(0x1cb70f43), X(0x7cbcccec), + X(0x1ce80906), X(0x7cb17c8d), X(0x1d18fe54), X(0x7ca618f3), + X(0x1d49ef26), X(0x7c9aa221), X(0x1d7adb73), X(0x7c8f1817), + X(0x1dabc334), X(0x7c837ad8), X(0x1ddca662), X(0x7c77ca65), + X(0x1e0d84f5), X(0x7c6c06c0), X(0x1e3e5ee5), X(0x7c602fec), + X(0x1e6f342c), X(0x7c5445e9), X(0x1ea004c1), X(0x7c4848ba), + X(0x1ed0d09d), X(0x7c3c3860), X(0x1f0197b8), X(0x7c3014de), + X(0x1f325a0b), X(0x7c23de35), X(0x1f63178f), X(0x7c179467), + X(0x1f93d03c), X(0x7c0b3777), X(0x1fc4840a), X(0x7bfec765), + X(0x1ff532f2), X(0x7bf24434), X(0x2025dcec), X(0x7be5ade6), + X(0x205681f1), X(0x7bd9047c), X(0x208721f9), X(0x7bcc47fa), + X(0x20b7bcfe), X(0x7bbf7860), X(0x20e852f6), X(0x7bb295b0), + X(0x2118e3dc), X(0x7ba59fee), X(0x21496fa7), X(0x7b989719), + X(0x2179f64f), X(0x7b8b7b36), X(0x21aa77cf), X(0x7b7e4c45), + X(0x21daf41d), X(0x7b710a49), X(0x220b6b32), X(0x7b63b543), + X(0x223bdd08), X(0x7b564d36), X(0x226c4996), X(0x7b48d225), + X(0x229cb0d5), X(0x7b3b4410), X(0x22cd12bd), X(0x7b2da2fa), + X(0x22fd6f48), X(0x7b1feee5), X(0x232dc66d), X(0x7b1227d3), + X(0x235e1826), X(0x7b044dc7), X(0x238e646a), X(0x7af660c2), + X(0x23beab33), X(0x7ae860c7), X(0x23eeec78), X(0x7ada4dd8), + X(0x241f2833), X(0x7acc27f7), X(0x244f5e5c), X(0x7abdef25), + X(0x247f8eec), X(0x7aafa367), X(0x24afb9da), X(0x7aa144bc), + X(0x24dfdf20), X(0x7a92d329), X(0x250ffeb7), X(0x7a844eae), + X(0x25401896), X(0x7a75b74f), X(0x25702cb7), X(0x7a670d0d), + X(0x25a03b11), X(0x7a584feb), X(0x25d0439f), X(0x7a497feb), + X(0x26004657), X(0x7a3a9d0f), X(0x26304333), X(0x7a2ba75a), + X(0x26603a2c), X(0x7a1c9ece), X(0x26902b39), X(0x7a0d836d), + X(0x26c01655), X(0x79fe5539), X(0x26effb76), X(0x79ef1436), + X(0x271fda96), X(0x79dfc064), X(0x274fb3ae), X(0x79d059c8), + X(0x277f86b5), X(0x79c0e062), X(0x27af53a6), X(0x79b15435), + X(0x27df1a77), X(0x79a1b545), X(0x280edb23), X(0x79920392), + X(0x283e95a1), X(0x79823f20), X(0x286e49ea), X(0x797267f2), + X(0x289df7f8), X(0x79627e08), X(0x28cd9fc1), X(0x79528167), + X(0x28fd4140), X(0x79427210), X(0x292cdc6d), X(0x79325006), + X(0x295c7140), X(0x79221b4b), X(0x298bffb2), X(0x7911d3e2), + X(0x29bb87bc), X(0x790179cd), X(0x29eb0957), X(0x78f10d0f), + X(0x2a1a847b), X(0x78e08dab), X(0x2a49f920), X(0x78cffba3), + X(0x2a796740), X(0x78bf56f9), X(0x2aa8ced3), X(0x78ae9fb0), + X(0x2ad82fd2), X(0x789dd5cb), X(0x2b078a36), X(0x788cf94c), + X(0x2b36ddf7), X(0x787c0a36), X(0x2b662b0e), X(0x786b088c), + X(0x2b957173), X(0x7859f44f), X(0x2bc4b120), X(0x7848cd83), + X(0x2bf3ea0d), X(0x7837942b), X(0x2c231c33), X(0x78264849), + X(0x2c52478a), X(0x7814e9df), X(0x2c816c0c), X(0x780378f1), + X(0x2cb089b1), X(0x77f1f581), X(0x2cdfa071), X(0x77e05f91), + X(0x2d0eb046), X(0x77ceb725), X(0x2d3db928), X(0x77bcfc3f), + X(0x2d6cbb10), X(0x77ab2ee2), X(0x2d9bb5f6), X(0x77994f11), + X(0x2dcaa9d5), X(0x77875cce), X(0x2df996a3), X(0x7775581d), + X(0x2e287c5a), X(0x776340ff), X(0x2e575af3), X(0x77511778), + X(0x2e863267), X(0x773edb8b), X(0x2eb502ae), X(0x772c8d3a), + X(0x2ee3cbc1), X(0x771a2c88), X(0x2f128d99), X(0x7707b979), + X(0x2f41482e), X(0x76f5340e), X(0x2f6ffb7a), X(0x76e29c4b), + X(0x2f9ea775), X(0x76cff232), X(0x2fcd4c19), X(0x76bd35c7), + X(0x2ffbe95d), X(0x76aa670d), X(0x302a7f3a), X(0x76978605), + X(0x30590dab), X(0x768492b4), X(0x308794a6), X(0x76718d1c), + X(0x30b61426), X(0x765e7540), X(0x30e48c22), X(0x764b4b23), + X(0x3112fc95), X(0x76380ec8), X(0x31416576), X(0x7624c031), + X(0x316fc6be), X(0x76115f63), X(0x319e2067), X(0x75fdec60), + X(0x31cc7269), X(0x75ea672a), X(0x31fabcbd), X(0x75d6cfc5), + X(0x3228ff5c), X(0x75c32634), X(0x32573a3f), X(0x75af6a7b), + X(0x32856d5e), X(0x759b9c9b), X(0x32b398b3), X(0x7587bc98), + X(0x32e1bc36), X(0x7573ca75), X(0x330fd7e1), X(0x755fc635), + X(0x333debab), X(0x754bafdc), X(0x336bf78f), X(0x7537876c), + X(0x3399fb85), X(0x75234ce8), X(0x33c7f785), X(0x750f0054), + X(0x33f5eb89), X(0x74faa1b3), X(0x3423d78a), X(0x74e63108), + X(0x3451bb81), X(0x74d1ae55), X(0x347f9766), X(0x74bd199f), + X(0x34ad6b32), X(0x74a872e8), X(0x34db36df), X(0x7493ba34), + X(0x3508fa66), X(0x747eef85), X(0x3536b5be), X(0x746a12df), + X(0x356468e2), X(0x74552446), X(0x359213c9), X(0x744023bc), + X(0x35bfb66e), X(0x742b1144), X(0x35ed50c9), X(0x7415ece2), + X(0x361ae2d3), X(0x7400b69a), X(0x36486c86), X(0x73eb6e6e), + X(0x3675edd9), X(0x73d61461), X(0x36a366c6), X(0x73c0a878), + X(0x36d0d746), X(0x73ab2ab4), X(0x36fe3f52), X(0x73959b1b), + X(0x372b9ee3), X(0x737ff9ae), X(0x3758f5f2), X(0x736a4671), + X(0x37864477), X(0x73548168), X(0x37b38a6d), X(0x733eaa96), + X(0x37e0c7cc), X(0x7328c1ff), X(0x380dfc8d), X(0x7312c7a5), + X(0x383b28a9), X(0x72fcbb8c), X(0x38684c19), X(0x72e69db7), + X(0x389566d6), X(0x72d06e2b), 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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: miscellaneous math and prototypes + + ********************************************************************/ + +#ifndef _V_RANDOM_H_ +#define _V_RANDOM_H_ +#include "ivorbiscodec.h" +#include "os.h" + +#ifdef _LOW_ACCURACY_ +# define X(n) (((((n)>>22)+1)>>1) - ((((n)>>22)+1)>>9)) +# define LOOKUP_T const unsigned char +#else +# define X(n) (n) +# define LOOKUP_T const ogg_int32_t +#endif + +#include "asm_arm.h" +#include <stdlib.h> /* for abs() */ + +#ifndef _V_WIDE_MATH +#define _V_WIDE_MATH + +#ifndef _LOW_ACCURACY_ +/* 64 bit multiply */ + +#if !(defined WIN32 && defined WINCE) +#include <sys/types.h> +#endif + +#if BYTE_ORDER==LITTLE_ENDIAN +union magic { + struct { + ogg_int32_t lo; + ogg_int32_t hi; + } halves; + ogg_int64_t whole; +}; +#elif BYTE_ORDER==BIG_ENDIAN +union magic { + struct { + ogg_int32_t hi; + ogg_int32_t lo; + } halves; + ogg_int64_t whole; +}; +#endif + +STIN ogg_int32_t MULT32(ogg_int32_t x, ogg_int32_t y) { + union magic magic; + magic.whole = (ogg_int64_t)x * y; + return magic.halves.hi; +} + +STIN ogg_int32_t MULT31(ogg_int32_t x, ogg_int32_t y) { + return MULT32(x,y)<<1; +} + +STIN ogg_int32_t MULT31_SHIFT15(ogg_int32_t x, ogg_int32_t y) { + union magic magic; + magic.whole = (ogg_int64_t)x * y; + return ((ogg_uint32_t)(magic.halves.lo)>>15) | ((magic.halves.hi)<<17); +} + +#else +/* 32 bit multiply, more portable but less accurate */ + +/* + * Note: Precision is biased towards the first argument therefore ordering + * is important. Shift values were chosen for the best sound quality after + * many listening tests. + */ + +/* + * For MULT32 and MULT31: The second argument is always a lookup table + * value already preshifted from 31 to 8 bits. We therefore take the + * opportunity to save on text space and use unsigned char for those + * tables in this case. + */ + +STIN ogg_int32_t MULT32(ogg_int32_t x, ogg_int32_t y) { + return (x >> 9) * y; /* y preshifted >>23 */ +} + +STIN ogg_int32_t MULT31(ogg_int32_t x, ogg_int32_t y) { + return (x >> 8) * y; /* y preshifted >>23 */ +} + +STIN ogg_int32_t MULT31_SHIFT15(ogg_int32_t x, ogg_int32_t y) { + return (x >> 6) * y; /* y preshifted >>9 */ +} + +#endif + +/* + * This should be used as a memory barrier, forcing all cached values in + * registers to wr writen back to memory. Might or might not be beneficial + * depending on the architecture and compiler. + */ +#define MB() + +/* + * The XPROD functions are meant to optimize the cross products found all + * over the place in mdct.c by forcing memory operation ordering to avoid + * unnecessary register reloads as soon as memory is being written to. + * However this is only beneficial on CPUs with a sane number of general + * purpose registers which exclude the Intel x86. On Intel, better let the + * compiler actually reload registers directly from original memory by using + * macros. + */ + +#ifdef __i386__ + +#define XPROD32(_a, _b, _t, _v, _x, _y) \ + { *(_x)=MULT32(_a,_t)+MULT32(_b,_v); \ + *(_y)=MULT32(_b,_t)-MULT32(_a,_v); } +#define XPROD31(_a, _b, _t, _v, _x, _y) \ + { *(_x)=MULT31(_a,_t)+MULT31(_b,_v); \ + *(_y)=MULT31(_b,_t)-MULT31(_a,_v); } +#define XNPROD31(_a, _b, _t, _v, _x, _y) \ + { *(_x)=MULT31(_a,_t)-MULT31(_b,_v); \ + *(_y)=MULT31(_b,_t)+MULT31(_a,_v); } + +#else + +STIN void XPROD32(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + *x = MULT32(a, t) + MULT32(b, v); + *y = MULT32(b, t) - MULT32(a, v); +} + +STIN void XPROD31(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + *x = MULT31(a, t) + MULT31(b, v); + *y = MULT31(b, t) - MULT31(a, v); +} + +STIN void XNPROD31(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + *x = MULT31(a, t) - MULT31(b, v); + *y = MULT31(b, t) + MULT31(a, v); +} + +#endif + +#endif + +#ifndef _V_CLIP_MATH +#define _V_CLIP_MATH + +STIN ogg_int32_t CLIP_TO_15(ogg_int32_t x) { + int ret=x; + ret-= ((x<=32767)-1)&(x-32767); + ret-= ((x>=-32768)-1)&(x+32768); + return(ret); +} + +#endif + +STIN ogg_int32_t VFLOAT_MULT(ogg_int32_t a,ogg_int32_t ap, + ogg_int32_t b,ogg_int32_t bp, + ogg_int32_t *p){ + if(a && b){ +#ifndef _LOW_ACCURACY_ + *p=ap+bp+32; + return MULT32(a,b); +#else + *p=ap+bp+31; + return (a>>15)*(b>>16); +#endif + }else + return 0; +} + +int _ilog(unsigned int); + +STIN ogg_int32_t VFLOAT_MULTI(ogg_int32_t a,ogg_int32_t ap, + ogg_int32_t i, + ogg_int32_t *p){ + + int ip=_ilog(abs(i))-31; + return VFLOAT_MULT(a,ap,i<<-ip,ip,p); +} + +STIN ogg_int32_t VFLOAT_ADD(ogg_int32_t a,ogg_int32_t ap, + ogg_int32_t b,ogg_int32_t bp, + ogg_int32_t *p){ + + if(!a){ + *p=bp; + return b; + }else if(!b){ + *p=ap; + return a; + } + + /* yes, this can leak a bit. */ + if(ap>bp){ + int shift=ap-bp+1; + *p=ap+1; + a>>=1; + if(shift<32){ + b=(b+(1<<(shift-1)))>>shift; + }else{ + b=0; + } + }else{ + int shift=bp-ap+1; + *p=bp+1; + b>>=1; + if(shift<32){ + a=(a+(1<<(shift-1)))>>shift; + }else{ + a=0; + } + } + + a+=b; + if((a&0xc0000000)==0xc0000000 || + (a&0xc0000000)==0){ + a<<=1; + (*p)--; + } + return(a); +} + +#endif + + + + diff --git a/media/libtremor/lib/moz.build b/media/libtremor/lib/moz.build new file mode 100644 index 000000000..dcbee612e --- /dev/null +++ b/media/libtremor/lib/moz.build @@ -0,0 +1,35 @@ +# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*- +# vim: set filetype=python: +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +SOURCES += [ + 'tremor_block.c', + 'tremor_codebook.c', + 'tremor_floor0.c', + 'tremor_floor1.c', + 'tremor_info.c', + 'tremor_mapping0.c', + 'tremor_mdct.c', + 'tremor_registry.c', + 'tremor_res012.c', + 'tremor_sharedbook.c', + 'tremor_synthesis.c', + 'tremor_window.c', +] + +FINAL_LIBRARY = 'gkmedias' + +if CONFIG['OS_ARCH'] == 'AIX': + DEFINES['alloca'] = '__alloca' + +if CONFIG['TARGET_CPU'] == 'arm' and CONFIG['GNU_CC'] and not CONFIG['MOZ_THUMB2']: + DEFINES['_ARM_ASSEM_'] = True + +LOCAL_INCLUDES += [ + '/media/libtremor/include/tremor', +] + +# We allow warnings for third-party code that can be updated from upstream. +ALLOW_COMPILER_WARNINGS = True diff --git a/media/libtremor/lib/os.h b/media/libtremor/lib/os.h new file mode 100644 index 000000000..130d27de3 --- /dev/null +++ b/media/libtremor/lib/os.h @@ -0,0 +1,64 @@ +#ifndef _OS_H +#define _OS_H +/******************************************************************** + * * + * 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: #ifdef jail to whip a few platforms into the UNIX ideal. + + ********************************************************************/ + +#include <math.h> +#include <ogg/os_types.h> + +#ifndef _V_IFDEFJAIL_H_ +# define _V_IFDEFJAIL_H_ + +# ifdef __GNUC__ +# define STIN static __inline__ +# elif _WIN32 +# define STIN static __inline +# endif +#else +# define STIN static +#endif + +#ifndef M_PI +# define M_PI (3.1415926536f) +#endif + +#ifdef _WIN32 +# include <malloc.h> +# define rint(x) (floor((x)+0.5f)) +# define NO_FLOAT_MATH_LIB +# define FAST_HYPOT(a, b) sqrt((a)*(a) + (b)*(b)) +# define LITTLE_ENDIAN 1 +# define BYTE_ORDER LITTLE_ENDIAN +#endif + +#ifdef HAVE_ALLOCA_H +# include <alloca.h> +#endif + +#ifdef USE_MEMORY_H +# include <memory.h> +#endif + +#ifndef min +# define min(x,y) ((x)>(y)?(y):(x)) +#endif + +#ifndef max +# define max(x,y) ((x)<(y)?(y):(x)) +#endif + +#endif /* _OS_H */ diff --git a/media/libtremor/lib/registry.h b/media/libtremor/lib/registry.h new file mode 100644 index 000000000..2bc8068f6 --- /dev/null +++ b/media/libtremor/lib/registry.h @@ -0,0 +1,40 @@ +/******************************************************************** + * * + * 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: registry for time, floor, res backends and channel mappings + + ********************************************************************/ + +#ifndef _V_REG_H_ +#define _V_REG_H_ + +#define VI_TRANSFORMB 1 +#define VI_WINDOWB 1 +#define VI_TIMEB 1 +#define VI_FLOORB 2 +#define VI_RESB 3 +#define VI_MAPB 1 + +#include "backends.h" + +#if defined(_WIN32) && defined(VORBISDLL_IMPORT) +# define EXTERN __declspec(dllimport) extern +#else +# define EXTERN extern +#endif + +EXTERN vorbis_func_floor *_floor_P[]; +EXTERN vorbis_func_residue *_residue_P[]; +EXTERN vorbis_func_mapping *_mapping_P[]; + +#endif diff --git a/media/libtremor/lib/tremor_block.c b/media/libtremor/lib/tremor_block.c new file mode 100644 index 000000000..666bc51a6 --- /dev/null +++ b/media/libtremor/lib/tremor_block.c @@ -0,0 +1,497 @@ +/******************************************************************** + * * + * 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: PCM data vector blocking, windowing and dis/reassembly + + ********************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codec_internal.h" + +#include "window.h" +#include "registry.h" +#include "misc.h" + +static int ilog(unsigned int v){ + int ret=0; + if(v)--v; + while(v){ + ret++; + v>>=1; + } + return(ret); +} + +/* pcm accumulator examples (not exhaustive): + + <-------------- lW ----------------> + <--------------- W ----------------> +: .....|..... _______________ | +: .''' | '''_--- | |\ | +:.....''' |_____--- '''......| | \_______| +:.................|__________________|_______|__|______| + |<------ Sl ------>| > Sr < |endW + |beginSl |endSl | |endSr + |beginW |endlW |beginSr + + + |< lW >| + <--------------- W ----------------> + | | .. ______________ | + | | ' `/ | ---_ | + |___.'___/`. | ---_____| + |_______|__|_______|_________________| + | >|Sl|< |<------ Sr ----->|endW + | | |endSl |beginSr |endSr + |beginW | |endlW + mult[0] |beginSl mult[n] + + <-------------- lW -----------------> + |<--W-->| +: .............. ___ | | +: .''' |`/ \ | | +:.....''' |/`....\|...| +:.........................|___|___|___| + |Sl |Sr |endW + | | |endSr + | |beginSr + | |endSl + |beginSl + |beginW +*/ + +/* block abstraction setup *********************************************/ + +#ifndef WORD_ALIGN +#define WORD_ALIGN 8 +#endif + +int vorbis_block_init(vorbis_dsp_state *v, vorbis_block *vb){ + memset(vb,0,sizeof(*vb)); + vb->vd=v; + vb->localalloc=0; + vb->localstore=NULL; + + return(0); +} + +void *_vorbis_block_alloc(vorbis_block *vb,long bytes){ + bytes=(bytes+(WORD_ALIGN-1)) & ~(WORD_ALIGN-1); + if(bytes+vb->localtop>vb->localalloc){ + /* can't just _ogg_realloc... there are outstanding pointers */ + if(vb->localstore){ + struct alloc_chain *link=(struct alloc_chain *)_ogg_malloc(sizeof(*link)); + vb->totaluse+=vb->localtop; + link->next=vb->reap; + link->ptr=vb->localstore; + vb->reap=link; + } + /* highly conservative */ + vb->localalloc=bytes; + vb->localstore=_ogg_malloc(vb->localalloc); + vb->localtop=0; + } + { + void *ret=(void *)(((char *)vb->localstore)+vb->localtop); + vb->localtop+=bytes; + return ret; + } +} + +/* reap the chain, pull the ripcord */ +void _vorbis_block_ripcord(vorbis_block *vb){ + /* reap the chain */ + struct alloc_chain *reap=vb->reap; + while(reap){ + struct alloc_chain *next=reap->next; + _ogg_free(reap->ptr); + memset(reap,0,sizeof(*reap)); + _ogg_free(reap); + reap=next; + } + /* consolidate storage */ + if(vb->totaluse){ + vb->localstore=_ogg_realloc(vb->localstore,vb->totaluse+vb->localalloc); + vb->localalloc+=vb->totaluse; + vb->totaluse=0; + } + + /* pull the ripcord */ + vb->localtop=0; + vb->reap=NULL; +} + +int vorbis_block_clear(vorbis_block *vb){ + _vorbis_block_ripcord(vb); + if(vb->localstore)_ogg_free(vb->localstore); + + memset(vb,0,sizeof(*vb)); + 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=_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++){ + 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=(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 */ + + /* 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; +} + +int vorbis_synthesis_restart(vorbis_dsp_state *v){ + vorbis_info *vi=v->vi; + codec_setup_info *ci; + + if(!v->backend_state)return -1; + if(!vi)return -1; + ci=vi->codec_setup; + if(!ci)return -1; + + v->centerW=ci->blocksizes[1]/2; + v->pcm_current=v->centerW; + + v->pcm_returned=-1; + v->granulepos=-1; + v->sequence=-1; + ((private_state *)(v->backend_state))->sample_count=-1; + + return(0); +} + +int vorbis_synthesis_init(vorbis_dsp_state *v,vorbis_info *vi){ + if(_vds_init(v,vi))return 1; + vorbis_synthesis_restart(v); + + return 0; +} + +void vorbis_dsp_clear(vorbis_dsp_state *v){ + int i; + if(v){ + vorbis_info *vi=v->vi; + codec_setup_info *ci=(codec_setup_info *)(vi?vi->codec_setup:NULL); + private_state *b=(private_state *)v->backend_state; + + if(v->pcm){ + for(i=0;i<vi->channels;i++) + if(v->pcm[i])_ogg_free(v->pcm[i]); + _ogg_free(v->pcm); + if(v->pcmret)_ogg_free(v->pcmret); + } + + /* free mode lookups; these are actually vorbis_look_mapping structs */ + if(ci){ + for(i=0;i<ci->modes;i++){ + int mapnum=ci->mode_param[i]->mapping; + int maptype=ci->map_type[mapnum]; + if(b && b->mode)_mapping_P[maptype]->free_look(b->mode[i]); + } + } + + if(b){ + if(b->mode)_ogg_free(b->mode); + _ogg_free(b); + } + + memset(v,0,sizeof(*v)); + } +} + +/* Unlike in analysis, the window is only partially applied for each + block. The time domain envelope is not yet handled at the point of + calling (as it relies on the previous block). */ + +int vorbis_synthesis_blockin(vorbis_dsp_state *v,vorbis_block *vb){ + vorbis_info *vi=v->vi; + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + private_state *b=v->backend_state; + int i,j; + + if(v->pcm_current>v->pcm_returned && v->pcm_returned!=-1)return(OV_EINVAL); + + v->lW=v->W; + v->W=vb->W; + v->nW=-1; + + if((v->sequence==-1)|| + (v->sequence+1 != vb->sequence)){ + v->granulepos=-1; /* out of sequence; lose count */ + b->sample_count=-1; + } + + v->sequence=vb->sequence; + + if(vb->pcm){ /* no pcm to process if vorbis_synthesis_trackonly + was called on block */ + int n=ci->blocksizes[v->W]/2; + int n0=ci->blocksizes[0]/2; + int n1=ci->blocksizes[1]/2; + + int thisCenter; + int prevCenter; + + if(v->centerW){ + thisCenter=n1; + prevCenter=0; + }else{ + thisCenter=0; + prevCenter=n1; + } + + /* v->pcm is now used like a two-stage double buffer. We don't want + to have to constantly shift *or* adjust memory usage. Don't + accept a new block until the old is shifted out */ + + /* overlap/add PCM */ + + for(j=0;j<vi->channels;j++){ + /* the overlap/add section */ + if(v->lW){ + if(v->W){ + /* large/large */ + ogg_int32_t *pcm=v->pcm[j]+prevCenter; + ogg_int32_t *p=vb->pcm[j]; + for(i=0;i<n1;i++) + pcm[i]+=p[i]; + }else{ + /* large/small */ + ogg_int32_t *pcm=v->pcm[j]+prevCenter+n1/2-n0/2; + ogg_int32_t *p=vb->pcm[j]; + for(i=0;i<n0;i++) + pcm[i]+=p[i]; + } + }else{ + if(v->W){ + /* small/large */ + ogg_int32_t *pcm=v->pcm[j]+prevCenter; + ogg_int32_t *p=vb->pcm[j]+n1/2-n0/2; + for(i=0;i<n0;i++) + pcm[i]+=p[i]; + for(;i<n1/2+n0/2;i++) + pcm[i]=p[i]; + }else{ + /* small/small */ + ogg_int32_t *pcm=v->pcm[j]+prevCenter; + ogg_int32_t *p=vb->pcm[j]; + for(i=0;i<n0;i++) + pcm[i]+=p[i]; + } + } + + /* the copy section */ + { + ogg_int32_t *pcm=v->pcm[j]+thisCenter; + ogg_int32_t *p=vb->pcm[j]+n; + for(i=0;i<n;i++) + pcm[i]=p[i]; + } + } + + if(v->centerW) + v->centerW=0; + else + v->centerW=n1; + + /* deal with initial packet state; we do this using the explicit + pcm_returned==-1 flag otherwise we're sensitive to first block + being short or long */ + + if(v->pcm_returned==-1){ + v->pcm_returned=thisCenter; + v->pcm_current=thisCenter; + }else{ + v->pcm_returned=prevCenter; + v->pcm_current=prevCenter+ + ci->blocksizes[v->lW]/4+ + ci->blocksizes[v->W]/4; + } + + } + + /* track the frame number... This is for convenience, but also + making sure our last packet doesn't end with added padding. If + the last packet is partial, the number of samples we'll have to + return will be past the vb->granulepos. + + This is not foolproof! It will be confused if we begin + decoding at the last page after a seek or hole. In that case, + we don't have a starting point to judge where the last frame + is. For this reason, vorbisfile will always try to make sure + it reads the last two marked pages in proper sequence */ + + if(b->sample_count==-1){ + b->sample_count=0; + }else{ + b->sample_count+=ci->blocksizes[v->lW]/4+ci->blocksizes[v->W]/4; + } + + if(v->granulepos==-1){ + if(vb->granulepos!=-1){ /* only set if we have a position to set to */ + + v->granulepos=vb->granulepos; + + /* is this a short page? */ + if(b->sample_count>v->granulepos){ + /* corner case; if this is both the first and last audio page, + then spec says the end is cut, not beginning */ + long extra=b->sample_count-vb->granulepos; + + /* we use ogg_int64_t for granule positions because a + uint64 isn't universally available. Unfortunately, + that means granposes can be 'negative' and result in + extra being negative */ + if(extra<0) + extra=0; + + if(vb->eofflag){ + /* trim the end */ + /* no preceeding granulepos; assume we started at zero (we'd + have to in a short single-page stream) */ + /* granulepos could be -1 due to a seek, but that would result + in a long coun`t, not short count */ + + /* Guard against corrupt/malicious frames that set EOP and + a backdated granpos; don't rewind more samples than we + actually have */ + if(extra > v->pcm_current - v->pcm_returned) + extra = v->pcm_current - v->pcm_returned; + + v->pcm_current-=extra; + }else{ + /* trim the beginning */ + v->pcm_returned+=extra; + if(v->pcm_returned>v->pcm_current) + v->pcm_returned=v->pcm_current; + } + + } + + } + }else{ + v->granulepos+=ci->blocksizes[v->lW]/4+ci->blocksizes[v->W]/4; + if(vb->granulepos!=-1 && v->granulepos!=vb->granulepos){ + + if(v->granulepos>vb->granulepos){ + long extra=v->granulepos-vb->granulepos; + + if(extra) + if(vb->eofflag){ + /* partial last frame. Strip the extra samples off */ + + /* Guard against corrupt/malicious frames that set EOP and + a backdated granpos; don't rewind more samples than we + actually have */ + if(extra > v->pcm_current - v->pcm_returned) + extra = v->pcm_current - v->pcm_returned; + + /* we use ogg_int64_t for granule positions because a + uint64 isn't universally available. Unfortunately, + that means granposes can be 'negative' and result in + extra being negative */ + if(extra<0) + extra=0; + + v->pcm_current-=extra; + + } /* else {Shouldn't happen *unless* the bitstream is out of + spec. Either way, believe the bitstream } */ + } /* else {Shouldn't happen *unless* the bitstream is out of + spec. Either way, believe the bitstream } */ + v->granulepos=vb->granulepos; + } + } + + /* Update, cleanup */ + + if(vb->eofflag)v->eofflag=1; + return(0); +} + +/* pcm==NULL indicates we just want the pending samples, no more */ +int vorbis_synthesis_pcmout(vorbis_dsp_state *v,ogg_int32_t ***pcm){ + vorbis_info *vi=v->vi; + if(v->pcm_returned>-1 && v->pcm_returned<v->pcm_current){ + if(pcm){ + int i; + for(i=0;i<vi->channels;i++) + v->pcmret[i]=v->pcm[i]+v->pcm_returned; + *pcm=v->pcmret; + } + return(v->pcm_current-v->pcm_returned); + } + return(0); +} + +int vorbis_synthesis_read(vorbis_dsp_state *v,int bytes){ + if(bytes && v->pcm_returned+bytes>v->pcm_current)return(OV_EINVAL); + v->pcm_returned+=bytes; + return(0); +} + diff --git a/media/libtremor/lib/tremor_codebook.c b/media/libtremor/lib/tremor_codebook.c new file mode 100644 index 000000000..f8b798384 --- /dev/null +++ b/media/libtremor/lib/tremor_codebook.c @@ -0,0 +1,391 @@ +/******************************************************************** + * * + * 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: basic codebook pack/unpack/code/decode operations + + ********************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codebook.h" +#include "misc.h" + +/* unpacks a codebook from the packet buffer into the codebook struct, + readies the codebook auxiliary structures for decode *************/ +static_codebook *vorbis_staticbook_unpack(oggpack_buffer *opb){ + long i,j; + static_codebook *s=_ogg_calloc(1,sizeof(*s)); + + /* make sure alignment is correct */ + if(oggpack_read(opb,24)!=0x564342)goto _eofout; + + /* first the basic parameters */ + s->dim=oggpack_read(opb,16); + s->entries=oggpack_read(opb,24); + if(s->entries==-1)goto _eofout; + + if(_ilog(s->dim)+_ilog(s->entries)>24)goto _eofout; + + /* codeword ordering.... length ordered or unordered? */ + switch((int)oggpack_read(opb,1)){ + case 0:{ + long unused; + /* allocated but unused entries? */ + unused=oggpack_read(opb,1); + if((s->entries*(unused?1:5)+7)>>3>opb->storage-oggpack_bytes(opb)) + goto _eofout; + /* unordered */ + s->lengthlist=(long *)_ogg_malloc(sizeof(*s->lengthlist)*s->entries); + + /* allocated but unused entries? */ + if(unused){ + /* yes, unused entries */ + + for(i=0;i<s->entries;i++){ + if(oggpack_read(opb,1)){ + long num=oggpack_read(opb,5); + if(num==-1)goto _eofout; + s->lengthlist[i]=num+1; + }else + s->lengthlist[i]=0; + } + }else{ + /* all entries used; no tagging */ + for(i=0;i<s->entries;i++){ + long num=oggpack_read(opb,5); + if(num==-1)goto _eofout; + s->lengthlist[i]=num+1; + } + } + + break; + } + case 1: + /* ordered */ + { + long length=oggpack_read(opb,5)+1; + if(length==0)goto _eofout; + s->lengthlist=(long *)_ogg_malloc(sizeof(*s->lengthlist)*s->entries); + + for(i=0;i<s->entries;){ + long num=oggpack_read(opb,_ilog(s->entries-i)); + if(num==-1)goto _eofout; + if(length>32 || num>s->entries-i || + (num>0 && (num-1)>>(length>>1)>>((length+1)>>1))>0){ + goto _errout; + } + for(j=0;j<num;j++,i++) + s->lengthlist[i]=length; + length++; + } + } + break; + default: + /* EOF */ + goto _eofout; + } + + /* Do we have a mapping to unpack? */ + switch((s->maptype=oggpack_read(opb,4))){ + case 0: + /* no mapping */ + break; + case 1: case 2: + /* implicitly populated value mapping */ + /* explicitly populated value mapping */ + + s->q_min=oggpack_read(opb,32); + s->q_delta=oggpack_read(opb,32); + s->q_quant=oggpack_read(opb,4)+1; + s->q_sequencep=oggpack_read(opb,1); + if(s->q_sequencep==-1)goto _eofout; + + { + int quantvals=0; + switch(s->maptype){ + case 1: + quantvals=(s->dim==0?0:_book_maptype1_quantvals(s)); + break; + case 2: + quantvals=s->entries*s->dim; + break; + } + + /* quantized values */ + if((quantvals*s->q_quant+7)>>3>opb->storage-oggpack_bytes(opb)) + goto _eofout; + s->quantlist=(long *)_ogg_malloc(sizeof(*s->quantlist)*quantvals); + for(i=0;i<quantvals;i++) + s->quantlist[i]=oggpack_read(opb,s->q_quant); + + if(quantvals&&s->quantlist[quantvals-1]==-1)goto _eofout; + } + break; + default: + goto _errout; + } + + /* all set */ + return(s); + + _errout: + _eofout: + vorbis_staticbook_destroy(s); + return(NULL); +} + +/* the 'eliminate the decode tree' optimization actually requires the + codewords to be MSb first, not LSb. This is an annoying inelegancy + (and one of the first places where carefully thought out design + turned out to be wrong; Vorbis II and future Ogg codecs should go + to an MSb bitpacker), but not actually the huge hit it appears to + be. The first-stage decode table catches most words so that + bitreverse is not in the main execution path. */ + +static ogg_uint32_t bitreverse(ogg_uint32_t x){ + x= ((x>>16)&0x0000ffff) | ((x<<16)&0xffff0000); + x= ((x>> 8)&0x00ff00ff) | ((x<< 8)&0xff00ff00); + x= ((x>> 4)&0x0f0f0f0f) | ((x<< 4)&0xf0f0f0f0); + x= ((x>> 2)&0x33333333) | ((x<< 2)&0xcccccccc); + return((x>> 1)&0x55555555) | ((x<< 1)&0xaaaaaaaa); +} + +STIN long decode_packed_entry_number(codebook *book, + oggpack_buffer *b){ + int read=book->dec_maxlength; + long lo,hi; + long lok = oggpack_look(b,book->dec_firsttablen); + + if (lok >= 0) { + long entry = book->dec_firsttable[lok]; + if(entry&0x80000000UL){ + lo=(entry>>15)&0x7fff; + hi=book->used_entries-(entry&0x7fff); + }else{ + oggpack_adv(b, book->dec_codelengths[entry-1]); + return(entry-1); + } + }else{ + lo=0; + hi=book->used_entries; + } + + lok = oggpack_look(b, read); + + while(lok<0 && read>1) + lok = oggpack_look(b, --read); + + if(lok<0){ + oggpack_adv(b,1); /* force eop */ + return -1; + } + + /* bisect search for the codeword in the ordered list */ + { + ogg_uint32_t testword=bitreverse((ogg_uint32_t)lok); + + while(hi-lo>1){ + long p=(hi-lo)>>1; + long test=book->codelist[lo+p]>testword; + lo+=p&(test-1); + hi-=p&(-test); + } + + if(book->dec_codelengths[lo]<=read){ + oggpack_adv(b, book->dec_codelengths[lo]); + return(lo); + } + } + + oggpack_adv(b, read+1); + return(-1); +} + +/* Decode side is specced and easier, because we don't need to find + matches using different criteria; we simply read and map. There are + two things we need to do 'depending': + + We may need to support interleave. We don't really, but it's + convenient to do it here rather than rebuild the vector later. + + Cascades may be additive or multiplicitive; this is not inherent in + the codebook, but set in the code using the codebook. Like + interleaving, it's easiest to do it here. + addmul==0 -> declarative (set the value) + addmul==1 -> additive + addmul==2 -> multiplicitive */ + +/* returns the [original, not compacted] entry number or -1 on eof *********/ +long vorbis_book_decode(codebook *book, oggpack_buffer *b){ + if(book->used_entries>0){ + long packed_entry=decode_packed_entry_number(book,b); + if(packed_entry>=0) + return(book->dec_index[packed_entry]); + } + + /* if there's no dec_index, the codebook unpacking isn't collapsed */ + return(-1); +} + +/* returns 0 on OK or -1 on eof *************************************/ +/* decode vector / dim granularity gaurding is done in the upper layer */ +long vorbis_book_decodevs_add(codebook *book,ogg_int32_t *a, + oggpack_buffer *b,int n,int point){ + if(book->used_entries>0){ + int step=n/book->dim; + long *entry = (long *)alloca(sizeof(*entry)*step); + ogg_int32_t **t = (ogg_int32_t **)alloca(sizeof(*t)*step); + int i,j,o; + int shift=point-book->binarypoint; + + if(shift>=0){ + for (i = 0; i < step; i++) { + entry[i]=decode_packed_entry_number(book,b); + if(entry[i]==-1)return(-1); + t[i] = book->valuelist+entry[i]*book->dim; + } + for(i=0,o=0;i<book->dim;i++,o+=step) + for (j=0;j<step;j++) + a[o+j]+=t[j][i]>>shift; + }else{ + for (i = 0; i < step; i++) { + entry[i]=decode_packed_entry_number(book,b); + if(entry[i]==-1)return(-1); + t[i] = book->valuelist+entry[i]*book->dim; + } + for(i=0,o=0;i<book->dim;i++,o+=step) + for (j=0;j<step;j++) + a[o+j]+=t[j][i]<<-shift; + } + } + return(0); +} + +/* decode vector / dim granularity gaurding is done in the upper layer */ +long vorbis_book_decodev_add(codebook *book,ogg_int32_t *a, + oggpack_buffer *b,int n,int point){ + if(book->used_entries>0){ + int i,j,entry; + ogg_int32_t *t; + int shift=point-book->binarypoint; + + if(shift>=0){ + for(i=0;i<n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + t = book->valuelist+entry*book->dim; + for (j=0;j<book->dim;) + a[i++]+=t[j++]>>shift; + } + }else{ + for(i=0;i<n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + t = book->valuelist+entry*book->dim; + for (j=0;j<book->dim;) + a[i++]+=t[j++]<<-shift; + } + } + } + return(0); +} + +/* unlike the others, we guard against n not being an integer number + of <dim> internally rather than in the upper layer (called only by + floor0) */ +long vorbis_book_decodev_set(codebook *book,ogg_int32_t *a, + oggpack_buffer *b,int n,int point){ + if(book->used_entries>0){ + int i,j,entry; + ogg_int32_t *t; + int shift=point-book->binarypoint; + + if(shift>=0){ + + for(i=0;i<n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + t = book->valuelist+entry*book->dim; + for (j=0;i<n && j<book->dim;){ + a[i++]=t[j++]>>shift; + } + } + }else{ + + for(i=0;i<n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + t = book->valuelist+entry*book->dim; + for (j=0;i<n && j<book->dim;){ + a[i++]=t[j++]<<-shift; + } + } + } + }else{ + + int i,j; + for(i=0;i<n;){ + a[i++]=0; + } + } + return(0); +} + +/* decode vector / dim granularity gaurding is done in the upper layer */ +long vorbis_book_decodevv_add(codebook *book,ogg_int32_t **a,\ + long offset,int ch, + oggpack_buffer *b,int n,int point){ + if(book->used_entries>0){ + long i,j,entry; + int chptr=0; + int shift=point-book->binarypoint; + + if(shift>=0){ + + for(i=offset;i<offset+n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + { + const ogg_int32_t *t = book->valuelist+entry*book->dim; + for (j=0;j<book->dim;j++){ + a[chptr++][i]+=t[j]>>shift; + if(chptr==ch){ + chptr=0; + i++; + } + } + } + } + }else{ + + for(i=offset;i<offset+n;){ + entry = decode_packed_entry_number(book,b); + if(entry==-1)return(-1); + { + const ogg_int32_t *t = book->valuelist+entry*book->dim; + for (j=0;j<book->dim;j++){ + a[chptr++][i]+=t[j]<<-shift; + if(chptr==ch){ + chptr=0; + i++; + } + } + } + } + } + } + return(0); +} diff --git a/media/libtremor/lib/tremor_floor0.c b/media/libtremor/lib/tremor_floor0.c new file mode 100644 index 000000000..9f3ef5601 --- /dev/null +++ b/media/libtremor/lib/tremor_floor0.c @@ -0,0 +1,438 @@ +/******************************************************************** + * * + * 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: floor backend 0 implementation + + ********************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codec_internal.h" +#include "registry.h" +#include "codebook.h" +#include "misc.h" +#include "block.h" + +#define LSP_FRACBITS 14 + +typedef struct { + long n; + int ln; + int m; + int *linearmap; + + vorbis_info_floor0 *vi; + ogg_int32_t *lsp_look; + +} vorbis_look_floor0; + +/*************** LSP decode ********************/ + +#include "lsp_lookup.h" + +/* interpolated 1./sqrt(p) where .5 <= a < 1. (.100000... to .111111...) in + 16.16 format + returns in m.8 format */ + +static long ADJUST_SQRT2[2]={8192,5792}; +STIN ogg_int32_t vorbis_invsqlook_i(long a,long e){ + long i=(a&0x7fff)>>(INVSQ_LOOKUP_I_SHIFT-1); + long d=a&INVSQ_LOOKUP_I_MASK; /* 0.10 */ + long val=INVSQ_LOOKUP_I[i]- /* 1.16 */ + ((INVSQ_LOOKUP_IDel[i]*d)>>INVSQ_LOOKUP_I_SHIFT); /* result 1.16 */ + val*=ADJUST_SQRT2[e&1]; + e=(e>>1)+21; + return(val>>e); +} + +/* interpolated lookup based fromdB function, domain -140dB to 0dB only */ +/* a is in n.12 format */ +STIN ogg_int32_t vorbis_fromdBlook_i(long a){ + int i=(-a)>>(12-FROMdB2_SHIFT); + if(i<0) return 0x7fffffff; + if(i>=(FROMdB_LOOKUP_SZ<<FROMdB_SHIFT))return 0; + + return FROMdB_LOOKUP[i>>FROMdB_SHIFT] * FROMdB2_LOOKUP[i&FROMdB2_MASK]; +} + +/* interpolated lookup based cos function, domain 0 to PI only */ +/* a is in 0.16 format, where 0==0, 2^^16-1==PI, return 0.14 */ +STIN ogg_int32_t vorbis_coslook_i(long a){ + int i=a>>COS_LOOKUP_I_SHIFT; + int d=a&COS_LOOKUP_I_MASK; + return COS_LOOKUP_I[i]- ((d*(COS_LOOKUP_I[i]-COS_LOOKUP_I[i+1]))>> + COS_LOOKUP_I_SHIFT); +} + +/* interpolated lookup based cos function */ +/* a is in 0.16 format, where 0==0, 2^^16==PI, return .LSP_FRACBITS */ +STIN ogg_int32_t vorbis_coslook2_i(long a){ + a=a&0x1ffff; + + if(a>0x10000)a=0x20000-a; + { + int i=a>>COS_LOOKUP_I_SHIFT; + int d=a&COS_LOOKUP_I_MASK; + a=((COS_LOOKUP_I[i]<<COS_LOOKUP_I_SHIFT)- + d*(COS_LOOKUP_I[i]-COS_LOOKUP_I[i+1]))>> + (COS_LOOKUP_I_SHIFT-LSP_FRACBITS+14); + } + + return(a); +} + +static const int barklook[28]={ + 0,100,200,301, 405,516,635,766, + 912,1077,1263,1476, 1720,2003,2333,2721, + 3184,3742,4428,5285, 6376,7791,9662,12181, + 15624,20397,27087,36554 +}; + +/* used in init only; interpolate the long way */ +STIN ogg_int32_t toBARK(int n){ + int i; + for(i=0;i<27;i++) + if(n>=barklook[i] && n<barklook[i+1])break; + + if(i==27){ + return 27<<15; + }else{ + int gap=barklook[i+1]-barklook[i]; + int del=n-barklook[i]; + + return((i<<15)+((del<<15)/gap)); + } +} + +static const unsigned char MLOOP_1[64]={ + 0,10,11,11, 12,12,12,12, 13,13,13,13, 13,13,13,13, + 14,14,14,14, 14,14,14,14, 14,14,14,14, 14,14,14,14, + 15,15,15,15, 15,15,15,15, 15,15,15,15, 15,15,15,15, + 15,15,15,15, 15,15,15,15, 15,15,15,15, 15,15,15,15, +}; + +static const unsigned char MLOOP_2[64]={ + 0,4,5,5, 6,6,6,6, 7,7,7,7, 7,7,7,7, + 8,8,8,8, 8,8,8,8, 8,8,8,8, 8,8,8,8, + 9,9,9,9, 9,9,9,9, 9,9,9,9, 9,9,9,9, + 9,9,9,9, 9,9,9,9, 9,9,9,9, 9,9,9,9, +}; + +static const unsigned char MLOOP_3[8]={0,1,2,2,3,3,3,3}; + +void vorbis_lsp_to_curve(ogg_int32_t *curve,int *map,int n,int ln, + ogg_int32_t *lsp,int m, + ogg_int32_t amp, + ogg_int32_t ampoffset, + ogg_int32_t *icos){ + + /* 0 <= m < 256 */ + + /* set up for using all int later */ + int i; + int ampoffseti=ampoffset*4096; + int ampi=amp; + ogg_int32_t *ilsp=(ogg_int32_t *)alloca(m*sizeof(*ilsp)); + /* lsp is in 8.24, range 0 to PI; coslook wants it in .16 0 to 1*/ + for(i=0;i<m;i++){ +#ifndef _LOW_ACCURACY_ + ogg_int32_t val=MULT32(lsp[i],0x517cc2); +#else + ogg_int32_t val=((lsp[i]>>10)*0x517d)>>14; +#endif + + /* safeguard against a malicious stream */ + if(val<0 || (val>>COS_LOOKUP_I_SHIFT)>=COS_LOOKUP_I_SZ){ + memset(curve,0,sizeof(*curve)*n); + return; + } + + ilsp[i]=vorbis_coslook_i(val); + } + + i=0; + while(i<n){ + int j,k=map[i]; + ogg_uint32_t pi=46341; /* 2**-.5 in 0.16 */ + ogg_uint32_t qi=46341; + ogg_int32_t qexp=0,shift; + ogg_int32_t wi=icos[k]; + +#ifdef _V_LSP_MATH_ASM + lsp_loop_asm(&qi,&pi,&qexp,ilsp,wi,m); + + pi=((pi*pi)>>16); + qi=((qi*qi)>>16); + + if(m&1){ + qexp= qexp*2-28*((m+1)>>1)+m; + pi*=(1<<14)-((wi*wi)>>14); + qi+=pi>>14; + }else{ + qexp= qexp*2-13*m; + + pi*=(1<<14)-wi; + qi*=(1<<14)+wi; + + qi=(qi+pi)>>14; + } + + if(qi&0xffff0000){ /* checks for 1.xxxxxxxxxxxxxxxx */ + qi>>=1; qexp++; + }else + lsp_norm_asm(&qi,&qexp); + +#else + + j=1; + if(m>1){ + qi*=labs(ilsp[0]-wi); + pi*=labs(ilsp[1]-wi); + + for(j+=2;j<m;j+=2){ + if(!(shift=MLOOP_1[(pi|qi)>>25])) + if(!(shift=MLOOP_2[(pi|qi)>>19])) + shift=MLOOP_3[(pi|qi)>>16]; + qi=(qi>>shift)*labs(ilsp[j-1]-wi); + pi=(pi>>shift)*labs(ilsp[j]-wi); + qexp+=shift; + } + } + if(!(shift=MLOOP_1[(pi|qi)>>25])) + if(!(shift=MLOOP_2[(pi|qi)>>19])) + shift=MLOOP_3[(pi|qi)>>16]; + + /* pi,qi normalized collectively, both tracked using qexp */ + + if(m&1){ + /* odd order filter; slightly assymetric */ + /* the last coefficient */ + qi=(qi>>shift)*labs(ilsp[j-1]-wi); + pi=(pi>>shift)<<14; + qexp+=shift; + + if(!(shift=MLOOP_1[(pi|qi)>>25])) + if(!(shift=MLOOP_2[(pi|qi)>>19])) + shift=MLOOP_3[(pi|qi)>>16]; + + pi>>=shift; + qi>>=shift; + qexp+=shift-14*((m+1)>>1); + + pi=((pi*pi)>>16); + qi=((qi*qi)>>16); + qexp=qexp*2+m; + + pi*=(1<<14)-((wi*wi)>>14); + qi+=pi>>14; + + }else{ + /* even order filter; still symmetric */ + + /* p*=p(1-w), q*=q(1+w), let normalization drift because it isn't + worth tracking step by step */ + + pi>>=shift; + qi>>=shift; + qexp+=shift-7*m; + + pi=((pi*pi)>>16); + qi=((qi*qi)>>16); + qexp=qexp*2+m; + + pi*=(1<<14)-wi; + qi*=(1<<14)+wi; + qi=(qi+pi)>>14; + + } + + + /* we've let the normalization drift because it wasn't important; + however, for the lookup, things must be normalized again. We + need at most one right shift or a number of left shifts */ + + if(qi&0xffff0000){ /* checks for 1.xxxxxxxxxxxxxxxx */ + qi>>=1; qexp++; + }else + while(qi && !(qi&0x8000)){ /* checks for 0.0xxxxxxxxxxxxxxx or less*/ + qi<<=1; qexp--; + } + +#endif + + amp=vorbis_fromdBlook_i(ampi* /* n.4 */ + vorbis_invsqlook_i(qi,qexp)- + /* m.8, m+n<=8 */ + ampoffseti); /* 8.12[0] */ + +#ifdef _LOW_ACCURACY_ + amp>>=9; +#endif + curve[i]= MULT31_SHIFT15(curve[i],amp); + while(map[++i]==k) curve[i]= MULT31_SHIFT15(curve[i],amp); + } +} + +/*************** vorbis decode glue ************/ + +static void floor0_free_info(vorbis_info_floor *i){ + vorbis_info_floor0 *info=(vorbis_info_floor0 *)i; + if(info){ + memset(info,0,sizeof(*info)); + _ogg_free(info); + } +} + +static void floor0_free_look(vorbis_look_floor *i){ + vorbis_look_floor0 *look=(vorbis_look_floor0 *)i; + if(look){ + + if(look->linearmap)_ogg_free(look->linearmap); + if(look->lsp_look)_ogg_free(look->lsp_look); + memset(look,0,sizeof(*look)); + _ogg_free(look); + } +} + +static vorbis_info_floor *floor0_unpack (vorbis_info *vi,oggpack_buffer *opb){ + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + int j; + + vorbis_info_floor0 *info=(vorbis_info_floor0 *)_ogg_malloc(sizeof(*info)); + info->order=oggpack_read(opb,8); + info->rate=oggpack_read(opb,16); + info->barkmap=oggpack_read(opb,16); + info->ampbits=oggpack_read(opb,6); + info->ampdB=oggpack_read(opb,8); + info->numbooks=oggpack_read(opb,4)+1; + + if(info->order<1)goto err_out; + if(info->rate<1)goto err_out; + if(info->barkmap<1)goto err_out; + if(info->numbooks<1)goto err_out; + + for(j=0;j<info->numbooks;j++){ + info->books[j]=oggpack_read(opb,8); + if(info->books[j]<0 || info->books[j]>=ci->books)goto err_out; + if(ci->book_param[info->books[j]]->maptype==0)goto err_out; + } + return(info); + + err_out: + floor0_free_info(info); + return(NULL); +} + +/* initialize Bark scale and normalization lookups. We could do this + with static tables, but Vorbis allows a number of possible + combinations, so it's best to do it computationally. + + The below is authoritative in terms of defining scale mapping. + Note that the scale depends on the sampling rate as well as the + linear block and mapping sizes */ + +static vorbis_look_floor *floor0_look (vorbis_dsp_state *vd,vorbis_info_mode *mi, + vorbis_info_floor *i){ + int j; + vorbis_info *vi=vd->vi; + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + vorbis_info_floor0 *info=(vorbis_info_floor0 *)i; + vorbis_look_floor0 *look=(vorbis_look_floor0 *)_ogg_calloc(1,sizeof(*look)); + look->m=info->order; + look->n=ci->blocksizes[mi->blockflag]/2; + look->ln=info->barkmap; + look->vi=info; + + /* the mapping from a linear scale to a smaller bark scale is + straightforward. We do *not* make sure that the linear mapping + does not skip bark-scale bins; the decoder simply skips them and + the encoder may do what it wishes in filling them. They're + necessary in some mapping combinations to keep the scale spacing + accurate */ + look->linearmap=(int *)_ogg_malloc((look->n+1)*sizeof(*look->linearmap)); + for(j=0;j<look->n;j++){ + + int val=(look->ln* + ((toBARK(info->rate/2*j/look->n)<<11)/toBARK(info->rate/2)))>>11; + + if(val>=look->ln)val=look->ln-1; /* guard against the approximation */ + look->linearmap[j]=val; + } + look->linearmap[j]=-1; + + look->lsp_look=(ogg_int32_t *)_ogg_malloc(look->ln*sizeof(*look->lsp_look)); + for(j=0;j<look->ln;j++) + look->lsp_look[j]=vorbis_coslook2_i(0x10000*j/look->ln); + + return look; +} + +static void *floor0_inverse1(vorbis_block *vb,vorbis_look_floor *i){ + vorbis_look_floor0 *look=(vorbis_look_floor0 *)i; + vorbis_info_floor0 *info=look->vi; + int j,k; + + int ampraw=oggpack_read(&vb->opb,info->ampbits); + if(ampraw>0){ /* also handles the -1 out of data case */ + long maxval=(1<<info->ampbits)-1; + int amp=((ampraw*info->ampdB)<<4)/maxval; + int booknum=oggpack_read(&vb->opb,_ilog(info->numbooks)); + + if(booknum!=-1 && booknum<info->numbooks){ /* be paranoid */ + codec_setup_info *ci=(codec_setup_info *)vb->vd->vi->codec_setup; + codebook *b=ci->fullbooks+info->books[booknum]; + ogg_int32_t last=0; + ogg_int32_t *lsp=(ogg_int32_t *)_vorbis_block_alloc(vb,sizeof(*lsp)*(look->m+1)); + + if(vorbis_book_decodev_set(b,lsp,&vb->opb,look->m,-24)==-1)goto eop; + for(j=0;j<look->m;){ + for(k=0;j<look->m && k<b->dim;k++,j++)lsp[j]+=last; + last=lsp[j-1]; + } + + lsp[look->m]=amp; + return(lsp); + } + } + eop: + return(NULL); +} + +static int floor0_inverse2(vorbis_block *vb,vorbis_look_floor *i, + void *memo,ogg_int32_t *out){ + vorbis_look_floor0 *look=(vorbis_look_floor0 *)i; + vorbis_info_floor0 *info=look->vi; + + if(memo){ + ogg_int32_t *lsp=(ogg_int32_t *)memo; + ogg_int32_t amp=lsp[look->m]; + + /* take the coefficients back to a spectral envelope curve */ + vorbis_lsp_to_curve(out,look->linearmap,look->n,look->ln, + lsp,look->m,amp,info->ampdB,look->lsp_look); + return(1); + } + memset(out,0,sizeof(*out)*look->n); + return(0); +} + +/* export hooks */ +vorbis_func_floor floor0_exportbundle={ + &floor0_unpack,&floor0_look,&floor0_free_info, + &floor0_free_look,&floor0_inverse1,&floor0_inverse2 +}; + + diff --git a/media/libtremor/lib/tremor_floor1.c b/media/libtremor/lib/tremor_floor1.c new file mode 100644 index 000000000..12a687ec5 --- /dev/null +++ b/media/libtremor/lib/tremor_floor1.c @@ -0,0 +1,461 @@ +/******************************************************************** + * * + * 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: floor backend 1 implementation + + ********************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codec_internal.h" +#include "registry.h" +#include "codebook.h" +#include "misc.h" +#include "block.h" + +#define floor1_rangedB 140 /* floor 1 fixed at -140dB to 0dB range */ + +typedef struct { + int forward_index[VIF_POSIT+2]; + + int hineighbor[VIF_POSIT]; + int loneighbor[VIF_POSIT]; + int posts; + + int n; + int quant_q; + vorbis_info_floor1 *vi; + +} vorbis_look_floor1; + +/***********************************************/ + +static void floor1_free_info(vorbis_info_floor *i){ + vorbis_info_floor1 *info=(vorbis_info_floor1 *)i; + if(info){ + memset(info,0,sizeof(*info)); + _ogg_free(info); + } +} + +static void floor1_free_look(vorbis_look_floor *i){ + vorbis_look_floor1 *look=(vorbis_look_floor1 *)i; + if(look){ + memset(look,0,sizeof(*look)); + _ogg_free(look); + } +} + +static int ilog(unsigned int v){ + int ret=0; + while(v){ + ret++; + v>>=1; + } + return(ret); +} + +static int icomp(const void *a,const void *b){ + return(**(int **)a-**(int **)b); +} + +static vorbis_info_floor *floor1_unpack (vorbis_info *vi,oggpack_buffer *opb){ + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + int j,k,count=0,maxclass=-1,rangebits; + + vorbis_info_floor1 *info=(vorbis_info_floor1 *)_ogg_calloc(1,sizeof(*info)); + /* read partitions */ + info->partitions=oggpack_read(opb,5); /* only 0 to 31 legal */ + for(j=0;j<info->partitions;j++){ + info->partitionclass[j]=oggpack_read(opb,4); /* only 0 to 15 legal */ + if(info->partitionclass[j]<0)goto err_out; + if(maxclass<info->partitionclass[j])maxclass=info->partitionclass[j]; + } + + /* read partition classes */ + for(j=0;j<maxclass+1;j++){ + info->class_dim[j]=oggpack_read(opb,3)+1; /* 1 to 8 */ + info->class_subs[j]=oggpack_read(opb,2); /* 0,1,2,3 bits */ + if(info->class_subs[j]<0) + goto err_out; + if(info->class_subs[j])info->class_book[j]=oggpack_read(opb,8); + if(info->class_book[j]<0 || info->class_book[j]>=ci->books) + goto err_out; + for(k=0;k<(1<<info->class_subs[j]);k++){ + info->class_subbook[j][k]=oggpack_read(opb,8)-1; + if(info->class_subbook[j][k]<-1 || info->class_subbook[j][k]>=ci->books) + goto err_out; + } + } + + /* read the post list */ + info->mult=oggpack_read(opb,2)+1; /* only 1,2,3,4 legal now */ + rangebits=oggpack_read(opb,4); + if(rangebits<0)goto err_out; + + for(j=0,k=0;j<info->partitions;j++){ + count+=info->class_dim[info->partitionclass[j]]; + if(count>VIF_POSIT)goto err_out; + for(;k<count;k++){ + int t=info->postlist[k+2]=oggpack_read(opb,rangebits); + if(t<0 || t>=(1<<rangebits)) + goto err_out; + } + } + info->postlist[0]=0; + info->postlist[1]=1<<rangebits; + + /* don't allow repeated values in post list as they'd result in + zero-length segments */ + { + int *sortpointer[VIF_POSIT+2]; + for(j=0;j<count+2;j++)sortpointer[j]=info->postlist+j; + qsort(sortpointer,count+2,sizeof(*sortpointer),icomp); + + for(j=1;j<count+2;j++) + if(*sortpointer[j-1]==*sortpointer[j])goto err_out; + } + + return(info); + + err_out: + floor1_free_info(info); + return(NULL); +} + +static vorbis_look_floor *floor1_look(vorbis_dsp_state *vd,vorbis_info_mode *mi, + vorbis_info_floor *in){ + + int *sortpointer[VIF_POSIT+2]; + vorbis_info_floor1 *info=(vorbis_info_floor1 *)in; + vorbis_look_floor1 *look=(vorbis_look_floor1 *)_ogg_calloc(1,sizeof(*look)); + int i,j,n=0; + + look->vi=info; + look->n=info->postlist[1]; + + /* we drop each position value in-between already decoded values, + and use linear interpolation to predict each new value past the + edges. The positions are read in the order of the position + list... we precompute the bounding positions in the lookup. Of + course, the neighbors can change (if a position is declined), but + this is an initial mapping */ + + for(i=0;i<info->partitions;i++)n+=info->class_dim[info->partitionclass[i]]; + n+=2; + look->posts=n; + + /* also store a sorted position index */ + for(i=0;i<n;i++)sortpointer[i]=info->postlist+i; + qsort(sortpointer,n,sizeof(*sortpointer),icomp); + + /* points from sort order back to range number */ + for(i=0;i<n;i++)look->forward_index[i]=sortpointer[i]-info->postlist; + + /* quantize values to multiplier spec */ + switch(info->mult){ + case 1: /* 1024 -> 256 */ + look->quant_q=256; + break; + case 2: /* 1024 -> 128 */ + look->quant_q=128; + break; + case 3: /* 1024 -> 86 */ + look->quant_q=86; + break; + case 4: /* 1024 -> 64 */ + look->quant_q=64; + break; + } + + /* discover our neighbors for decode where we don't use fit flags + (that would push the neighbors outward) */ + for(i=0;i<n-2;i++){ + int lo=0; + int hi=1; + int lx=0; + int hx=look->n; + int currentx=info->postlist[i+2]; + for(j=0;j<i+2;j++){ + int x=info->postlist[j]; + if(x>lx && x<currentx){ + lo=j; + lx=x; + } + if(x<hx && x>currentx){ + hi=j; + hx=x; + } + } + look->loneighbor[i]=lo; + look->hineighbor[i]=hi; + } + + return(look); +} + +static int render_point(int x0,int x1,int y0,int y1,int x){ + y0&=0x7fff; /* mask off flag */ + y1&=0x7fff; + + { + int dy=y1-y0; + int adx=x1-x0; + int ady=abs(dy); + int err=ady*(x-x0); + + int off=err/adx; + if(dy<0)return(y0-off); + return(y0+off); + } +} + +#ifdef _LOW_ACCURACY_ +# define XdB(n) ((((n)>>8)+1)>>1) +#else +# define XdB(n) (n) +#endif + +static const ogg_int32_t FLOOR_fromdB_LOOKUP[256]={ + XdB(0x000000e5), XdB(0x000000f4), XdB(0x00000103), XdB(0x00000114), + XdB(0x00000126), XdB(0x00000139), XdB(0x0000014e), XdB(0x00000163), + XdB(0x0000017a), XdB(0x00000193), XdB(0x000001ad), XdB(0x000001c9), + XdB(0x000001e7), XdB(0x00000206), XdB(0x00000228), XdB(0x0000024c), + XdB(0x00000272), XdB(0x0000029b), XdB(0x000002c6), XdB(0x000002f4), + XdB(0x00000326), XdB(0x0000035a), XdB(0x00000392), XdB(0x000003cd), + XdB(0x0000040c), XdB(0x00000450), XdB(0x00000497), XdB(0x000004e4), + XdB(0x00000535), XdB(0x0000058c), XdB(0x000005e8), XdB(0x0000064a), + XdB(0x000006b3), XdB(0x00000722), XdB(0x00000799), XdB(0x00000818), + XdB(0x0000089e), XdB(0x0000092e), XdB(0x000009c6), XdB(0x00000a69), + XdB(0x00000b16), XdB(0x00000bcf), XdB(0x00000c93), XdB(0x00000d64), + XdB(0x00000e43), XdB(0x00000f30), XdB(0x0000102d), XdB(0x0000113a), + XdB(0x00001258), XdB(0x0000138a), XdB(0x000014cf), XdB(0x00001629), + XdB(0x0000179a), XdB(0x00001922), XdB(0x00001ac4), XdB(0x00001c82), + XdB(0x00001e5c), XdB(0x00002055), XdB(0x0000226f), XdB(0x000024ac), + XdB(0x0000270e), XdB(0x00002997), XdB(0x00002c4b), XdB(0x00002f2c), + XdB(0x0000323d), XdB(0x00003581), XdB(0x000038fb), XdB(0x00003caf), + XdB(0x000040a0), XdB(0x000044d3), XdB(0x0000494c), XdB(0x00004e10), + XdB(0x00005323), XdB(0x0000588a), XdB(0x00005e4b), XdB(0x0000646b), + XdB(0x00006af2), XdB(0x000071e5), XdB(0x0000794c), XdB(0x0000812e), + XdB(0x00008993), XdB(0x00009283), XdB(0x00009c09), XdB(0x0000a62d), + XdB(0x0000b0f9), XdB(0x0000bc79), XdB(0x0000c8b9), XdB(0x0000d5c4), + XdB(0x0000e3a9), XdB(0x0000f274), XdB(0x00010235), XdB(0x000112fd), + XdB(0x000124dc), XdB(0x000137e4), XdB(0x00014c29), XdB(0x000161bf), + XdB(0x000178bc), XdB(0x00019137), XdB(0x0001ab4a), XdB(0x0001c70e), + XdB(0x0001e4a1), XdB(0x0002041f), XdB(0x000225aa), XdB(0x00024962), + XdB(0x00026f6d), XdB(0x000297f0), XdB(0x0002c316), XdB(0x0002f109), + XdB(0x000321f9), XdB(0x00035616), XdB(0x00038d97), XdB(0x0003c8b4), + XdB(0x000407a7), XdB(0x00044ab2), XdB(0x00049218), XdB(0x0004de23), + XdB(0x00052f1e), XdB(0x0005855c), XdB(0x0005e135), XdB(0x00064306), + XdB(0x0006ab33), XdB(0x00071a24), XdB(0x0007904b), XdB(0x00080e20), + XdB(0x00089422), XdB(0x000922da), XdB(0x0009bad8), XdB(0x000a5cb6), + XdB(0x000b091a), XdB(0x000bc0b1), XdB(0x000c8436), XdB(0x000d5471), + XdB(0x000e3233), XdB(0x000f1e5f), XdB(0x001019e4), XdB(0x001125c1), + XdB(0x00124306), XdB(0x001372d5), XdB(0x0014b663), XdB(0x00160ef7), + XdB(0x00177df0), XdB(0x001904c1), XdB(0x001aa4f9), XdB(0x001c603d), + XdB(0x001e384f), XdB(0x00202f0f), XdB(0x0022467a), XdB(0x002480b1), + XdB(0x0026dff7), XdB(0x002966b3), XdB(0x002c1776), XdB(0x002ef4fc), + XdB(0x0032022d), XdB(0x00354222), XdB(0x0038b828), XdB(0x003c67c2), + XdB(0x004054ae), XdB(0x004482e8), XdB(0x0048f6af), XdB(0x004db488), + XdB(0x0052c142), XdB(0x005821ff), XdB(0x005ddc33), XdB(0x0063f5b0), + XdB(0x006a74a7), XdB(0x00715faf), XdB(0x0078bdce), XdB(0x0080967f), + XdB(0x0088f1ba), XdB(0x0091d7f9), XdB(0x009b5247), XdB(0x00a56a41), + XdB(0x00b02a27), XdB(0x00bb9ce2), XdB(0x00c7ce12), XdB(0x00d4ca17), + XdB(0x00e29e20), XdB(0x00f15835), XdB(0x0101074b), XdB(0x0111bb4e), + XdB(0x01238531), XdB(0x01367704), XdB(0x014aa402), XdB(0x016020a7), + XdB(0x017702c3), XdB(0x018f6190), XdB(0x01a955cb), XdB(0x01c4f9cf), + XdB(0x01e269a8), XdB(0x0201c33b), XdB(0x0223265a), XdB(0x0246b4ea), + XdB(0x026c9302), XdB(0x0294e716), XdB(0x02bfda13), XdB(0x02ed9793), + XdB(0x031e4e09), XdB(0x03522ee4), XdB(0x03896ed0), XdB(0x03c445e2), + XdB(0x0402efd6), XdB(0x0445ac4b), XdB(0x048cbefc), XdB(0x04d87013), + XdB(0x05290c67), XdB(0x057ee5ca), XdB(0x05da5364), XdB(0x063bb204), + XdB(0x06a36485), XdB(0x0711d42b), XdB(0x0787710e), XdB(0x0804b299), + XdB(0x088a17ef), XdB(0x0918287e), XdB(0x09af747c), XdB(0x0a50957e), + XdB(0x0afc2f19), XdB(0x0bb2ef7f), XdB(0x0c759034), XdB(0x0d44d6ca), + XdB(0x0e2195bc), XdB(0x0f0cad0d), XdB(0x10070b62), XdB(0x1111aeea), + XdB(0x122da66c), XdB(0x135c120f), XdB(0x149e24d9), XdB(0x15f525b1), + XdB(0x176270e3), XdB(0x18e7794b), XdB(0x1a85c9ae), XdB(0x1c3f06d1), + XdB(0x1e14f07d), XdB(0x200963d7), XdB(0x221e5ccd), XdB(0x2455f870), + XdB(0x26b2770b), XdB(0x29363e2b), XdB(0x2be3db5c), XdB(0x2ebe06b6), + XdB(0x31c7a55b), XdB(0x3503ccd4), XdB(0x3875c5aa), XdB(0x3c210f44), + XdB(0x4009632b), XdB(0x4432b8cf), XdB(0x48a149bc), XdB(0x4d59959e), + XdB(0x52606733), XdB(0x57bad899), XdB(0x5d6e593a), XdB(0x6380b298), + XdB(0x69f80e9a), XdB(0x70dafda8), XdB(0x78307d76), XdB(0x7fffffff), +}; + +static void render_line(int n, int x0,int x1,int y0,int y1,ogg_int32_t *d){ + int dy=y1-y0; + int adx=x1-x0; + int ady=abs(dy); + int base=dy/adx; + int sy=(dy<0?base-1:base+1); + int x=x0; + int y=y0; + int err=0; + + if(n>x1)n=x1; + ady-=abs(base*adx); + + if(x<n) + d[x]= MULT31_SHIFT15(d[x],FLOOR_fromdB_LOOKUP[y]); + + while(++x<n){ + err=err+ady; + if(err>=adx){ + err-=adx; + y+=sy; + }else{ + y+=base; + } + d[x]= MULT31_SHIFT15(d[x],FLOOR_fromdB_LOOKUP[y]); + } +} + +static void *floor1_inverse1(vorbis_block *vb,vorbis_look_floor *in){ + vorbis_look_floor1 *look=(vorbis_look_floor1 *)in; + vorbis_info_floor1 *info=look->vi; + codec_setup_info *ci=(codec_setup_info *)vb->vd->vi->codec_setup; + + int i,j,k; + codebook *books=ci->fullbooks; + + /* unpack wrapped/predicted values from stream */ + if(oggpack_read(&vb->opb,1)==1){ + int *fit_value=(int *)_vorbis_block_alloc(vb,(look->posts)*sizeof(*fit_value)); + + fit_value[0]=oggpack_read(&vb->opb,ilog(look->quant_q-1)); + fit_value[1]=oggpack_read(&vb->opb,ilog(look->quant_q-1)); + + /* partition by partition */ + /* partition by partition */ + for(i=0,j=2;i<info->partitions;i++){ + int classv=info->partitionclass[i]; + int cdim=info->class_dim[classv]; + int csubbits=info->class_subs[classv]; + int csub=1<<csubbits; + int cval=0; + + /* decode the partition's first stage cascade value */ + if(csubbits){ + cval=vorbis_book_decode(books+info->class_book[classv],&vb->opb); + + if(cval==-1)goto eop; + } + + for(k=0;k<cdim;k++){ + int book=info->class_subbook[classv][cval&(csub-1)]; + cval>>=csubbits; + if(book>=0){ + if((fit_value[j+k]=vorbis_book_decode(books+book,&vb->opb))==-1) + goto eop; + }else{ + fit_value[j+k]=0; + } + } + j+=cdim; + } + + /* unwrap positive values and reconsitute via linear interpolation */ + for(i=2;i<look->posts;i++){ + int predicted=render_point(info->postlist[look->loneighbor[i-2]], + info->postlist[look->hineighbor[i-2]], + fit_value[look->loneighbor[i-2]], + fit_value[look->hineighbor[i-2]], + info->postlist[i]); + int hiroom=look->quant_q-predicted; + int loroom=predicted; + int room=(hiroom<loroom?hiroom:loroom)<<1; + int val=fit_value[i]; + + if(val){ + if(val>=room){ + if(hiroom>loroom){ + val = val-loroom; + }else{ + val = -1-(val-hiroom); + } + }else{ + if(val&1){ + val= -((val+1)>>1); + }else{ + val>>=1; + } + } + + fit_value[i]=(val+predicted)&0x7fff;; + fit_value[look->loneighbor[i-2]]&=0x7fff; + fit_value[look->hineighbor[i-2]]&=0x7fff; + + }else{ + fit_value[i]=predicted|0x8000; + } + + } + + return(fit_value); + } + eop: + return(NULL); +} + +static int floor1_inverse2(vorbis_block *vb,vorbis_look_floor *in,void *memo, + ogg_int32_t *out){ + vorbis_look_floor1 *look=(vorbis_look_floor1 *)in; + vorbis_info_floor1 *info=look->vi; + + codec_setup_info *ci=(codec_setup_info *)vb->vd->vi->codec_setup; + int n=ci->blocksizes[vb->W]/2; + int j; + + if(memo){ + /* render the lines */ + int *fit_value=(int *)memo; + int hx=0; + int lx=0; + int ly=fit_value[0]*info->mult; + /* guard lookup against out-of-rage values */ + ly=(ly<0?0:ly>255?255:ly); + + for(j=1;j<look->posts;j++){ + int current=look->forward_index[j]; + int hy=fit_value[current]&0x7fff; + if(hy==fit_value[current]){ + + hx=info->postlist[current]; + hy*=info->mult; + /* guard lookup against out-of-rage values */ + hy=(hy<0?0:hy>255?255:hy); + + + render_line(n,lx,hx,ly,hy,out); + + lx=hx; + ly=hy; + } + } + for(j=hx;j<n;j++)out[j]*=ly; /* be certain */ + return(1); + } + memset(out,0,sizeof(*out)*n); + return(0); +} + +/* export hooks */ +vorbis_func_floor floor1_exportbundle={ + &floor1_unpack,&floor1_look,&floor1_free_info, + &floor1_free_look,&floor1_inverse1,&floor1_inverse2 +}; + diff --git a/media/libtremor/lib/tremor_info.c b/media/libtremor/lib/tremor_info.c new file mode 100644 index 000000000..3f3308ef9 --- /dev/null +++ b/media/libtremor/lib/tremor_info.c @@ -0,0 +1,390 @@ +/******************************************************************** + * * + * 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 1994-2003 * + * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * + * * + ******************************************************************** + + function: maintain the info structure, info <-> header packets + + ********************************************************************/ + +/* general handling of the header and the vorbis_info structure (and + substructures) */ + +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <limits.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codec_internal.h" +#include "codebook.h" +#include "registry.h" +#include "window.h" +#include "misc.h" + +/* helpers */ +static void _v_readstring(oggpack_buffer *o,char *buf,int bytes){ + while(bytes--){ + *buf++=oggpack_read(o,8); + } +} + +void vorbis_comment_init(vorbis_comment *vc){ + memset(vc,0,sizeof(*vc)); +} + +/* This is more or less the same as strncasecmp - but that doesn't exist + * everywhere, and this is a fairly trivial function, so we include it */ +static int tagcompare(const char *s1, const char *s2, int n){ + int c=0; + while(c < n){ + if(toupper(s1[c]) != toupper(s2[c])) + return !0; + c++; + } + return 0; +} + +char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count){ + long i; + int found = 0; + int taglen = strlen(tag)+1; /* +1 for the = we append */ + char *fulltag = (char *)alloca(taglen+ 1); + + strcpy(fulltag, tag); + strcat(fulltag, "="); + + for(i=0;i<vc->comments;i++){ + if(!tagcompare(vc->user_comments[i], fulltag, taglen)){ + if(count == found) + /* We return a pointer to the data, not a copy */ + return vc->user_comments[i] + taglen; + else + found++; + } + } + return NULL; /* didn't find anything */ +} + +int vorbis_comment_query_count(vorbis_comment *vc, char *tag){ + int i,count=0; + int taglen = strlen(tag)+1; /* +1 for the = we append */ + char *fulltag = (char *)alloca(taglen+1); + strcpy(fulltag,tag); + strcat(fulltag, "="); + + for(i=0;i<vc->comments;i++){ + if(!tagcompare(vc->user_comments[i], fulltag, taglen)) + count++; + } + + return count; +} + +void vorbis_comment_clear(vorbis_comment *vc){ + if(vc){ + long i; + if(vc->user_comments){ + for(i=0;i<vc->comments;i++) + if(vc->user_comments[i])_ogg_free(vc->user_comments[i]); + _ogg_free(vc->user_comments); + } + if(vc->comment_lengths)_ogg_free(vc->comment_lengths); + if(vc->vendor)_ogg_free(vc->vendor); + memset(vc,0,sizeof(*vc)); + } +} + +/* blocksize 0 is guaranteed to be short, 1 is guarantted to be long. + They may be equal, but short will never ge greater than long */ +int vorbis_info_blocksize(vorbis_info *vi,int zo){ + codec_setup_info *ci = (codec_setup_info *)vi->codec_setup; + return ci ? ci->blocksizes[zo] : -1; +} + +/* used by synthesis, which has a full, alloced vi */ +void vorbis_info_init(vorbis_info *vi){ + memset(vi,0,sizeof(*vi)); + vi->codec_setup=(codec_setup_info *)_ogg_calloc(1,sizeof(codec_setup_info)); +} + +void vorbis_info_clear(vorbis_info *vi){ + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + int i; + + if(ci){ + + for(i=0;i<ci->modes;i++) + if(ci->mode_param[i])_ogg_free(ci->mode_param[i]); + + for(i=0;i<ci->maps;i++) /* unpack does the range checking */ + if(ci->map_param[i]) + _mapping_P[ci->map_type[i]]->free_info(ci->map_param[i]); + + for(i=0;i<ci->floors;i++) /* unpack does the range checking */ + if(ci->floor_param[i]) + _floor_P[ci->floor_type[i]]->free_info(ci->floor_param[i]); + + for(i=0;i<ci->residues;i++) /* unpack does the range checking */ + if(ci->residue_param[i]) + _residue_P[ci->residue_type[i]]->free_info(ci->residue_param[i]); + + for(i=0;i<ci->books;i++){ + if(ci->book_param[i]){ + /* knows if the book was not alloced */ + vorbis_staticbook_destroy(ci->book_param[i]); + } + if(ci->fullbooks) + vorbis_book_clear(ci->fullbooks+i); + } + if(ci->fullbooks) + _ogg_free(ci->fullbooks); + + _ogg_free(ci); + } + + memset(vi,0,sizeof(*vi)); +} + +/* Header packing/unpacking ********************************************/ + +static int _vorbis_unpack_info(vorbis_info *vi,oggpack_buffer *opb){ + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + if(!ci)return(OV_EFAULT); + + vi->version=oggpack_read(opb,32); + if(vi->version!=0)return(OV_EVERSION); + + vi->channels=oggpack_read(opb,8); + vi->rate=oggpack_read(opb,32); + + vi->bitrate_upper=oggpack_read(opb,32); + vi->bitrate_nominal=oggpack_read(opb,32); + vi->bitrate_lower=oggpack_read(opb,32); + + ci->blocksizes[0]=1<<oggpack_read(opb,4); + ci->blocksizes[1]=1<<oggpack_read(opb,4); + + if(vi->rate<1)goto err_out; + if(vi->channels<1)goto err_out; + if(ci->blocksizes[0]<64)goto err_out; + if(ci->blocksizes[1]<ci->blocksizes[0])goto err_out; + if(ci->blocksizes[1]>8192)goto err_out; + + if(oggpack_read(opb,1)!=1)goto err_out; /* EOP check */ + + return(0); + err_out: + vorbis_info_clear(vi); + return(OV_EBADHEADER); +} + +static int _vorbis_unpack_comment(vorbis_comment *vc,oggpack_buffer *opb){ + int i; + int vendorlen; + vendorlen=oggpack_read(opb,32); + if(vendorlen<0)goto err_out; + if(vendorlen>opb->storage-oggpack_bytes(opb))goto err_out; + vc->vendor=(char *)_ogg_calloc(vendorlen+1,1); + if(vc->vendor==NULL)goto err_out; + _v_readstring(opb,vc->vendor,vendorlen); + i=oggpack_read(opb,32); + if(i<0||i>=INT_MAX||i>(opb->storage-oggpack_bytes(opb))>>2)goto err_out; + vc->user_comments=(char **)_ogg_calloc(i+1,sizeof(*vc->user_comments)); + vc->comment_lengths=(int *)_ogg_calloc(i+1, sizeof(*vc->comment_lengths)); + if(vc->user_comments==NULL||vc->comment_lengths==NULL)goto err_out; + vc->comments=i; + + for(i=0;i<vc->comments;i++){ + int len=oggpack_read(opb,32); + if(len<0||len>opb->storage-oggpack_bytes(opb))goto err_out; + vc->comment_lengths[i]=len; + vc->user_comments[i]=(char *)_ogg_calloc(len+1,1); + if(vc->user_comments[i]==NULL){ + vc->comments=i; + goto err_out; + } + _v_readstring(opb,vc->user_comments[i],len); + } + if(oggpack_read(opb,1)!=1)goto err_out; /* EOP check */ + + return(0); + err_out: + vorbis_comment_clear(vc); + return(OV_EBADHEADER); +} + +/* all of the real encoding details are here. The modes, books, + everything */ +static int _vorbis_unpack_books(vorbis_info *vi,oggpack_buffer *opb){ + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + int i; + if(!ci)return(OV_EFAULT); + + /* codebooks */ + ci->books=oggpack_read(opb,8)+1; + if(ci->books<=0)goto err_out; + for(i=0;i<ci->books;i++){ + ci->book_param[i]=vorbis_staticbook_unpack(opb); + if(!ci->book_param[i])goto err_out; + } + + /* time backend settings */ + ci->times=oggpack_read(opb,6)+1; + if(ci->times<=0)goto err_out; + for(i=0;i<ci->times;i++){ + ci->time_type[i]=oggpack_read(opb,16); + if(ci->time_type[i]<0 || ci->time_type[i]>=VI_TIMEB)goto err_out; + /* ci->time_param[i]=_time_P[ci->time_type[i]]->unpack(vi,opb); + Vorbis I has no time backend */ + /*if(!ci->time_param[i])goto err_out;*/ + } + + /* floor backend settings */ + ci->floors=oggpack_read(opb,6)+1; + if(ci->floors<=0)goto err_out; + for(i=0;i<ci->floors;i++){ + ci->floor_type[i]=oggpack_read(opb,16); + if(ci->floor_type[i]<0 || ci->floor_type[i]>=VI_FLOORB)goto err_out; + ci->floor_param[i]=_floor_P[ci->floor_type[i]]->unpack(vi,opb); + if(!ci->floor_param[i])goto err_out; + } + + /* residue backend settings */ + ci->residues=oggpack_read(opb,6)+1; + if(ci->residues<=0)goto err_out; + for(i=0;i<ci->residues;i++){ + ci->residue_type[i]=oggpack_read(opb,16); + if(ci->residue_type[i]<0 || ci->residue_type[i]>=VI_RESB)goto err_out; + ci->residue_param[i]=_residue_P[ci->residue_type[i]]->unpack(vi,opb); + if(!ci->residue_param[i])goto err_out; + } + + /* map backend settings */ + ci->maps=oggpack_read(opb,6)+1; + if(ci->maps<=0)goto err_out; + for(i=0;i<ci->maps;i++){ + ci->map_type[i]=oggpack_read(opb,16); + if(ci->map_type[i]<0 || ci->map_type[i]>=VI_MAPB)goto err_out; + ci->map_param[i]=_mapping_P[ci->map_type[i]]->unpack(vi,opb); + if(!ci->map_param[i])goto err_out; + } + + /* mode settings */ + ci->modes=oggpack_read(opb,6)+1; + if(ci->modes<=0)goto err_out; + for(i=0;i<ci->modes;i++){ + ci->mode_param[i]=(vorbis_info_mode *)_ogg_calloc(1,sizeof(*ci->mode_param[i])); + ci->mode_param[i]->blockflag=oggpack_read(opb,1); + ci->mode_param[i]->windowtype=oggpack_read(opb,16); + ci->mode_param[i]->transformtype=oggpack_read(opb,16); + ci->mode_param[i]->mapping=oggpack_read(opb,8); + + if(ci->mode_param[i]->windowtype>=VI_WINDOWB)goto err_out; + if(ci->mode_param[i]->transformtype>=VI_WINDOWB)goto err_out; + if(ci->mode_param[i]->mapping>=ci->maps)goto err_out; + if(ci->mode_param[i]->mapping<0)goto err_out; + } + + if(oggpack_read(opb,1)!=1)goto err_out; /* top level EOP check */ + + return(0); + err_out: + vorbis_info_clear(vi); + return(OV_EBADHEADER); +} + +/* Is this packet a vorbis ID header? */ +int vorbis_synthesis_idheader(ogg_packet *op){ + oggpack_buffer opb; + char buffer[6]; + + if(op){ + oggpack_readinit(&opb,op->packet,op->bytes); + + if(!op->b_o_s) + return(0); /* Not the initial packet */ + + if(oggpack_read(&opb,8) != 1) + return 0; /* not an ID header */ + + memset(buffer,0,6); + _v_readstring(&opb,buffer,6); + if(memcmp(buffer,"vorbis",6)) + return 0; /* not vorbis */ + + return 1; + } + + return 0; +} + +/* The Vorbis header is in three packets; the initial small packet in + the first page that identifies basic parameters, a second packet + with bitstream comments and a third packet that holds the + codebook. */ + +int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,ogg_packet *op){ + oggpack_buffer opb; + + if(op){ + oggpack_readinit(&opb,op->packet,op->bytes); + + /* Which of the three types of header is this? */ + /* Also verify header-ness, vorbis */ + { + char buffer[6]; + int packtype=oggpack_read(&opb,8); + memset(buffer,0,6); + _v_readstring(&opb,buffer,6); + if(memcmp(buffer,"vorbis",6)){ + /* not a vorbis header */ + return(OV_ENOTVORBIS); + } + switch(packtype){ + case 0x01: /* least significant *bit* is read first */ + if(!op->b_o_s){ + /* Not the initial packet */ + return(OV_EBADHEADER); + } + if(vi->rate!=0){ + /* previously initialized info header */ + return(OV_EBADHEADER); + } + + return(_vorbis_unpack_info(vi,&opb)); + + case 0x03: /* least significant *bit* is read first */ + if(vi->rate==0){ + /* um... we didn't get the initial header */ + return(OV_EBADHEADER); + } + + return(_vorbis_unpack_comment(vc,&opb)); + + case 0x05: /* least significant *bit* is read first */ + if(vi->rate==0 || vc->vendor==NULL){ + /* um... we didn;t get the initial header or comments yet */ + return(OV_EBADHEADER); + } + + return(_vorbis_unpack_books(vi,&opb)); + + default: + /* Not a valid vorbis header type */ + return(OV_EBADHEADER); + break; + } + } + } + return(OV_EBADHEADER); +} + diff --git a/media/libtremor/lib/tremor_mapping0.c b/media/libtremor/lib/tremor_mapping0.c new file mode 100644 index 000000000..aa03e8543 --- /dev/null +++ b/media/libtremor/lib/tremor_mapping0.c @@ -0,0 +1,328 @@ +/******************************************************************** + * * + * 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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <math.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "mdct.h" +#include "codec_internal.h" +#include "codebook.h" +#include "window.h" +#include "registry.h" +#include "misc.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=info->coupling_mag[i]=oggpack_read(opb,ilog(vi->channels)); + int testA=info->coupling_ang[i]=oggpack_read(opb,ilog(vi->channels)); + + 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); +} + +static int seq=0; +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; + private_state *b=(private_state *)vd->backend_state; + 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]; + + ogg_int32_t **pcmbundle=(ogg_int32_t **)alloca(sizeof(*pcmbundle)*vi->channels); + int *zerobundle=(int *)alloca(sizeof(*zerobundle)*vi->channels); + + int *nonzero =(int *)alloca(sizeof(*nonzero)*vi->channels); + void **floormemo=(void **)alloca(sizeof(*floormemo)*vi->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(vb->pcm[i],0,sizeof(*vb->pcm[i])*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++]=vb->pcm[j]; + } + } + + 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=vb->pcm[info->coupling_mag[i]]; + ogg_int32_t *pcmA=vb->pcm[info->coupling_ang[i]]; + + for(j=0;j<n/2;j++){ + ogg_int32_t mag=pcmM[j]; + ogg_int32_t ang=pcmA[j]; + + if(mag>0) + if(ang>0){ + pcmM[j]=mag; + pcmA[j]=mag-ang; + }else{ + pcmA[j]=mag; + pcmM[j]=mag+ang; + } + else + if(ang>0){ + pcmM[j]=mag; + pcmA[j]=mag+ang; + }else{ + pcmA[j]=mag; + pcmM[j]=mag-ang; + } + } + } + + //for(j=0;j<vi->channels;j++) + //_analysis_output("residue",seq+j,vb->pcm[j],-8,n/2,0,0); + + /* compute and apply spectral envelope */ + for(i=0;i<vi->channels;i++){ + ogg_int32_t *pcm=vb->pcm[i]; + int submap=info->chmuxlist[i]; + look->floor_func[submap]-> + inverse2(vb,look->floor_look[submap],floormemo[i],pcm); + } + + //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=vb->pcm[i]; + mdct_backward(n,pcm,pcm); + } + + //for(j=0;j<vi->channels;j++) + //_analysis_output("imdct",seq+j,vb->pcm[j],-24,n,0,0); + + /* window the data */ + for(i=0;i<vi->channels;i++){ + ogg_int32_t *pcm=vb->pcm[i]; + if(nonzero[i]) + _vorbis_apply_window(pcm,b->window,ci->blocksizes,vb->lW,vb->W,vb->nW); + else + for(j=0;j<n;j++) + pcm[j]=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 */ +vorbis_func_mapping mapping0_exportbundle={ + &mapping0_unpack, + &mapping0_look, + &mapping0_free_info, + &mapping0_free_look, + &mapping0_inverse +}; diff --git a/media/libtremor/lib/tremor_mdct.c b/media/libtremor/lib/tremor_mdct.c new file mode 100644 index 000000000..4f39e7d53 --- /dev/null +++ b/media/libtremor/lib/tremor_mdct.c @@ -0,0 +1,510 @@ +/******************************************************************** + * * + * 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: normalized modified discrete cosine transform + power of two length transform only [64 <= n ] + last mod: $Id: mdct.c,v 1.9 2002/10/16 09:17:39 xiphmont Exp $ + + Original algorithm adapted long ago from _The use of multirate filter + banks for coding of high quality digital audio_, by T. Sporer, + K. Brandenburg and B. Edler, collection of the European Signal + Processing Conference (EUSIPCO), Amsterdam, June 1992, Vol.1, pp + 211-214 + + The below code implements an algorithm that no longer looks much like + that presented in the paper, but the basic structure remains if you + dig deep enough to see it. + + This module DOES NOT INCLUDE code to generate/apply the window + function. Everybody has their own weird favorite including me... I + happen to like the properties of y=sin(.5PI*sin^2(x)), but others may + vehemently disagree. + + ********************************************************************/ + +#include "ivorbiscodec.h" +#include "codebook.h" +#include "misc.h" +#include "mdct.h" +#include "mdct_lookup.h" + + +/* 8 point butterfly (in place) */ +STIN void mdct_butterfly_8(DATA_TYPE *x){ + + REG_TYPE r0 = x[4] + x[0]; + REG_TYPE r1 = x[4] - x[0]; + REG_TYPE r2 = x[5] + x[1]; + REG_TYPE r3 = x[5] - x[1]; + REG_TYPE r4 = x[6] + x[2]; + REG_TYPE r5 = x[6] - x[2]; + REG_TYPE r6 = x[7] + x[3]; + REG_TYPE r7 = x[7] - x[3]; + + x[0] = r5 + r3; + x[1] = r7 - r1; + x[2] = r5 - r3; + x[3] = r7 + r1; + x[4] = r4 - r0; + x[5] = r6 - r2; + x[6] = r4 + r0; + x[7] = r6 + r2; + MB(); +} + +/* 16 point butterfly (in place, 4 register) */ +STIN void mdct_butterfly_16(DATA_TYPE *x){ + + REG_TYPE r0, r1; + + r0 = x[ 0] - x[ 8]; x[ 8] += x[ 0]; + r1 = x[ 1] - x[ 9]; x[ 9] += x[ 1]; + x[ 0] = MULT31((r0 + r1) , cPI2_8); + x[ 1] = MULT31((r1 - r0) , cPI2_8); + MB(); + + r0 = x[10] - x[ 2]; x[10] += x[ 2]; + r1 = x[ 3] - x[11]; x[11] += x[ 3]; + x[ 2] = r1; x[ 3] = r0; + MB(); + + r0 = x[12] - x[ 4]; x[12] += x[ 4]; + r1 = x[13] - x[ 5]; x[13] += x[ 5]; + x[ 4] = MULT31((r0 - r1) , cPI2_8); + x[ 5] = MULT31((r0 + r1) , cPI2_8); + MB(); + + r0 = x[14] - x[ 6]; x[14] += x[ 6]; + r1 = x[15] - x[ 7]; x[15] += x[ 7]; + x[ 6] = r0; x[ 7] = r1; + MB(); + + mdct_butterfly_8(x); + mdct_butterfly_8(x+8); +} + +/* 32 point butterfly (in place, 4 register) */ +STIN void mdct_butterfly_32(DATA_TYPE *x){ + + REG_TYPE r0, r1; + + r0 = x[30] - x[14]; x[30] += x[14]; + r1 = x[31] - x[15]; x[31] += x[15]; + x[14] = r0; x[15] = r1; + MB(); + + r0 = x[28] - x[12]; x[28] += x[12]; + r1 = x[29] - x[13]; x[29] += x[13]; + XNPROD31( r0, r1, cPI1_8, cPI3_8, &x[12], &x[13] ); + MB(); + + r0 = x[26] - x[10]; x[26] += x[10]; + r1 = x[27] - x[11]; x[27] += x[11]; + x[10] = MULT31((r0 - r1) , cPI2_8); + x[11] = MULT31((r0 + r1) , cPI2_8); + MB(); + + r0 = x[24] - x[ 8]; x[24] += x[ 8]; + r1 = x[25] - x[ 9]; x[25] += x[ 9]; + XNPROD31( r0, r1, cPI3_8, cPI1_8, &x[ 8], &x[ 9] ); + MB(); + + r0 = x[22] - x[ 6]; x[22] += x[ 6]; + r1 = x[ 7] - x[23]; x[23] += x[ 7]; + x[ 6] = r1; x[ 7] = r0; + MB(); + + r0 = x[ 4] - x[20]; x[20] += x[ 4]; + r1 = x[ 5] - x[21]; x[21] += x[ 5]; + XPROD31 ( r0, r1, cPI3_8, cPI1_8, &x[ 4], &x[ 5] ); + MB(); + + r0 = x[ 2] - x[18]; x[18] += x[ 2]; + r1 = x[ 3] - x[19]; x[19] += x[ 3]; + x[ 2] = MULT31((r1 + r0) , cPI2_8); + x[ 3] = MULT31((r1 - r0) , cPI2_8); + MB(); + + r0 = x[ 0] - x[16]; x[16] += x[ 0]; + r1 = x[ 1] - x[17]; x[17] += x[ 1]; + XPROD31 ( r0, r1, cPI1_8, cPI3_8, &x[ 0], &x[ 1] ); + MB(); + + mdct_butterfly_16(x); + mdct_butterfly_16(x+16); +} + +/* N/stage point generic N stage butterfly (in place, 2 register) */ +STIN void mdct_butterfly_generic(DATA_TYPE *x,int points,int step){ + + LOOKUP_T *T = sincos_lookup0; + DATA_TYPE *x1 = x + points - 8; + DATA_TYPE *x2 = x + (points>>1) - 8; + REG_TYPE r0; + REG_TYPE r1; + + do{ + r0 = x1[6] - x2[6]; x1[6] += x2[6]; + r1 = x2[7] - x1[7]; x1[7] += x2[7]; + XPROD31( r1, r0, T[0], T[1], &x2[6], &x2[7] ); T+=step; + + r0 = x1[4] - x2[4]; x1[4] += x2[4]; + r1 = x2[5] - x1[5]; x1[5] += x2[5]; + XPROD31( r1, r0, T[0], T[1], &x2[4], &x2[5] ); T+=step; + + r0 = x1[2] - x2[2]; x1[2] += x2[2]; + r1 = x2[3] - x1[3]; x1[3] += x2[3]; + XPROD31( r1, r0, T[0], T[1], &x2[2], &x2[3] ); T+=step; + + r0 = x1[0] - x2[0]; x1[0] += x2[0]; + r1 = x2[1] - x1[1]; x1[1] += x2[1]; + XPROD31( r1, r0, T[0], T[1], &x2[0], &x2[1] ); T+=step; + + x1-=8; x2-=8; + }while(T<sincos_lookup0+1024); + do{ + r0 = x1[6] - x2[6]; x1[6] += x2[6]; + r1 = x1[7] - x2[7]; x1[7] += x2[7]; + XNPROD31( r0, r1, T[0], T[1], &x2[6], &x2[7] ); T-=step; + + r0 = x1[4] - x2[4]; x1[4] += x2[4]; + r1 = x1[5] - x2[5]; x1[5] += x2[5]; + XNPROD31( r0, r1, T[0], T[1], &x2[4], &x2[5] ); T-=step; + + r0 = x1[2] - x2[2]; x1[2] += x2[2]; + r1 = x1[3] - x2[3]; x1[3] += x2[3]; + XNPROD31( r0, r1, T[0], T[1], &x2[2], &x2[3] ); T-=step; + + r0 = x1[0] - x2[0]; x1[0] += x2[0]; + r1 = x1[1] - x2[1]; x1[1] += x2[1]; + XNPROD31( r0, r1, T[0], T[1], &x2[0], &x2[1] ); T-=step; + + x1-=8; x2-=8; + }while(T>sincos_lookup0); + do{ + r0 = x2[6] - x1[6]; x1[6] += x2[6]; + r1 = x2[7] - x1[7]; x1[7] += x2[7]; + XPROD31( r0, r1, T[0], T[1], &x2[6], &x2[7] ); T+=step; + + r0 = x2[4] - x1[4]; x1[4] += x2[4]; + r1 = x2[5] - x1[5]; x1[5] += x2[5]; + XPROD31( r0, r1, T[0], T[1], &x2[4], &x2[5] ); T+=step; + + r0 = x2[2] - x1[2]; x1[2] += x2[2]; + r1 = x2[3] - x1[3]; x1[3] += x2[3]; + XPROD31( r0, r1, T[0], T[1], &x2[2], &x2[3] ); T+=step; + + r0 = x2[0] - x1[0]; x1[0] += x2[0]; + r1 = x2[1] - x1[1]; x1[1] += x2[1]; + XPROD31( r0, r1, T[0], T[1], &x2[0], &x2[1] ); T+=step; + + x1-=8; x2-=8; + }while(T<sincos_lookup0+1024); + do{ + r0 = x1[6] - x2[6]; x1[6] += x2[6]; + r1 = x2[7] - x1[7]; x1[7] += x2[7]; + XNPROD31( r1, r0, T[0], T[1], &x2[6], &x2[7] ); T-=step; + + r0 = x1[4] - x2[4]; x1[4] += x2[4]; + r1 = x2[5] - x1[5]; x1[5] += x2[5]; + XNPROD31( r1, r0, T[0], T[1], &x2[4], &x2[5] ); T-=step; + + r0 = x1[2] - x2[2]; x1[2] += x2[2]; + r1 = x2[3] - x1[3]; x1[3] += x2[3]; + XNPROD31( r1, r0, T[0], T[1], &x2[2], &x2[3] ); T-=step; + + r0 = x1[0] - x2[0]; x1[0] += x2[0]; + r1 = x2[1] - x1[1]; x1[1] += x2[1]; + XNPROD31( r1, r0, T[0], T[1], &x2[0], &x2[1] ); T-=step; + + x1-=8; x2-=8; + }while(T>sincos_lookup0); +} + +STIN void mdct_butterflies(DATA_TYPE *x,int points,int shift){ + + int stages=8-shift; + int i,j; + + for(i=0;--stages>0;i++){ + for(j=0;j<(1<<i);j++) + mdct_butterfly_generic(x+(points>>i)*j,points>>i,4<<(i+shift)); + } + + for(j=0;j<points;j+=32) + mdct_butterfly_32(x+j); + +} + +static unsigned char bitrev[16]={0,8,4,12,2,10,6,14,1,9,5,13,3,11,7,15}; + +STIN int bitrev12(int x){ + return bitrev[x>>8]|(bitrev[(x&0x0f0)>>4]<<4)|(((int)bitrev[x&0x00f])<<8); +} + +STIN void mdct_bitreverse(DATA_TYPE *x,int n,int step,int shift){ + + int bit = 0; + DATA_TYPE *w0 = x; + DATA_TYPE *w1 = x = w0+(n>>1); + LOOKUP_T *T = (step>=4)?(sincos_lookup0+(step>>1)):sincos_lookup1; + LOOKUP_T *Ttop = T+1024; + DATA_TYPE r2; + + do{ + DATA_TYPE r3 = bitrev12(bit++); + DATA_TYPE *x0 = x + ((r3 ^ 0xfff)>>shift) -1; + DATA_TYPE *x1 = x + (r3>>shift); + + REG_TYPE r0 = x0[0] + x1[0]; + REG_TYPE r1 = x1[1] - x0[1]; + + XPROD32( r0, r1, T[1], T[0], &r2, &r3 ); T+=step; + + w1 -= 4; + + r0 = (x0[1] + x1[1])>>1; + r1 = (x0[0] - x1[0])>>1; + w0[0] = r0 + r2; + w0[1] = r1 + r3; + w1[2] = r0 - r2; + w1[3] = r3 - r1; + + r3 = bitrev12(bit++); + x0 = x + ((r3 ^ 0xfff)>>shift) -1; + x1 = x + (r3>>shift); + + r0 = x0[0] + x1[0]; + r1 = x1[1] - x0[1]; + + XPROD32( r0, r1, T[1], T[0], &r2, &r3 ); T+=step; + + r0 = (x0[1] + x1[1])>>1; + r1 = (x0[0] - x1[0])>>1; + w0[2] = r0 + r2; + w0[3] = r1 + r3; + w1[0] = r0 - r2; + w1[1] = r3 - r1; + + w0 += 4; + }while(T<Ttop); + do{ + DATA_TYPE r3 = bitrev12(bit++); + DATA_TYPE *x0 = x + ((r3 ^ 0xfff)>>shift) -1; + DATA_TYPE *x1 = x + (r3>>shift); + + REG_TYPE r0 = x0[0] + x1[0]; + REG_TYPE r1 = x1[1] - x0[1]; + + T-=step; XPROD32( r0, r1, T[0], T[1], &r2, &r3 ); + + w1 -= 4; + + r0 = (x0[1] + x1[1])>>1; + r1 = (x0[0] - x1[0])>>1; + w0[0] = r0 + r2; + w0[1] = r1 + r3; + w1[2] = r0 - r2; + w1[3] = r3 - r1; + + r3 = bitrev12(bit++); + x0 = x + ((r3 ^ 0xfff)>>shift) -1; + x1 = x + (r3>>shift); + + r0 = x0[0] + x1[0]; + r1 = x1[1] - x0[1]; + + T-=step; XPROD32( r0, r1, T[0], T[1], &r2, &r3 ); + + r0 = (x0[1] + x1[1])>>1; + r1 = (x0[0] - x1[0])>>1; + w0[2] = r0 + r2; + w0[3] = r1 + r3; + w1[0] = r0 - r2; + w1[1] = r3 - r1; + + w0 += 4; + }while(w0<w1); +} + +void mdct_backward(int n, DATA_TYPE *in, DATA_TYPE *out){ + int n2=n>>1; + int n4=n>>2; + DATA_TYPE *iX; + DATA_TYPE *oX; + LOOKUP_T *T; + LOOKUP_T *V; + int shift; + int step; + + for (shift=6;!(n&(1<<shift));shift++); + shift=13-shift; + step=2<<shift; + + /* rotate */ + + iX = in+n2-7; + oX = out+n2+n4; + T = sincos_lookup0; + + do{ + oX-=4; + XPROD31( iX[4], iX[6], T[0], T[1], &oX[2], &oX[3] ); T+=step; + XPROD31( iX[0], iX[2], T[0], T[1], &oX[0], &oX[1] ); T+=step; + iX-=8; + }while(iX>=in+n4); + do{ + oX-=4; + XPROD31( iX[4], iX[6], T[1], T[0], &oX[2], &oX[3] ); T-=step; + XPROD31( iX[0], iX[2], T[1], T[0], &oX[0], &oX[1] ); T-=step; + iX-=8; + }while(iX>=in); + + iX = in+n2-8; + oX = out+n2+n4; + T = sincos_lookup0; + + do{ + T+=step; XNPROD31( iX[6], iX[4], T[0], T[1], &oX[0], &oX[1] ); + T+=step; XNPROD31( iX[2], iX[0], T[0], T[1], &oX[2], &oX[3] ); + iX-=8; + oX+=4; + }while(iX>=in+n4); + do{ + T-=step; XNPROD31( iX[6], iX[4], T[1], T[0], &oX[0], &oX[1] ); + T-=step; XNPROD31( iX[2], iX[0], T[1], T[0], &oX[2], &oX[3] ); + iX-=8; + oX+=4; + }while(iX>=in); + + mdct_butterflies(out+n2,n2,shift); + mdct_bitreverse(out,n,step,shift); + + /* rotate + window */ + + step>>=2; + { + DATA_TYPE *oX1=out+n2+n4; + DATA_TYPE *oX2=out+n2+n4; + DATA_TYPE *iX =out; + + switch(step) { + default: { + T=(step>=4)?(sincos_lookup0+(step>>1)):sincos_lookup1; + do{ + oX1-=4; + XPROD31( iX[0], -iX[1], T[0], T[1], &oX1[3], &oX2[0] ); T+=step; + XPROD31( iX[2], -iX[3], T[0], T[1], &oX1[2], &oX2[1] ); T+=step; + XPROD31( iX[4], -iX[5], T[0], T[1], &oX1[1], &oX2[2] ); T+=step; + XPROD31( iX[6], -iX[7], T[0], T[1], &oX1[0], &oX2[3] ); T+=step; + oX2+=4; + iX+=8; + }while(iX<oX1); + break; + } + + case 1: { + /* linear interpolation between table values: offset=0.5, step=1 */ + REG_TYPE t0,t1,v0,v1; + T = sincos_lookup0; + V = sincos_lookup1; + t0 = (*T++)>>1; + t1 = (*T++)>>1; + do{ + oX1-=4; + + t0 += (v0 = (*V++)>>1); + t1 += (v1 = (*V++)>>1); + XPROD31( iX[0], -iX[1], t0, t1, &oX1[3], &oX2[0] ); + v0 += (t0 = (*T++)>>1); + v1 += (t1 = (*T++)>>1); + XPROD31( iX[2], -iX[3], v0, v1, &oX1[2], &oX2[1] ); + t0 += (v0 = (*V++)>>1); + t1 += (v1 = (*V++)>>1); + XPROD31( iX[4], -iX[5], t0, t1, &oX1[1], &oX2[2] ); + v0 += (t0 = (*T++)>>1); + v1 += (t1 = (*T++)>>1); + XPROD31( iX[6], -iX[7], v0, v1, &oX1[0], &oX2[3] ); + + oX2+=4; + iX+=8; + }while(iX<oX1); + break; + } + + case 0: { + /* linear interpolation between table values: offset=0.25, step=0.5 */ + REG_TYPE t0,t1,v0,v1,q0,q1; + T = sincos_lookup0; + V = sincos_lookup1; + t0 = *T++; + t1 = *T++; + do{ + oX1-=4; + + v0 = *V++; + v1 = *V++; + t0 += (q0 = (v0-t0)>>2); + t1 += (q1 = (v1-t1)>>2); + XPROD31( iX[0], -iX[1], t0, t1, &oX1[3], &oX2[0] ); + t0 = v0-q0; + t1 = v1-q1; + XPROD31( iX[2], -iX[3], t0, t1, &oX1[2], &oX2[1] ); + + t0 = *T++; + t1 = *T++; + v0 += (q0 = (t0-v0)>>2); + v1 += (q1 = (t1-v1)>>2); + XPROD31( iX[4], -iX[5], v0, v1, &oX1[1], &oX2[2] ); + v0 = t0-q0; + v1 = t1-q1; + XPROD31( iX[6], -iX[7], v0, v1, &oX1[0], &oX2[3] ); + + oX2+=4; + iX+=8; + }while(iX<oX1); + break; + } + } + + iX=out+n2+n4; + oX1=out+n4; + oX2=oX1; + + do{ + oX1-=4; + iX-=4; + + oX2[0] = -(oX1[3] = iX[3]); + oX2[1] = -(oX1[2] = iX[2]); + oX2[2] = -(oX1[1] = iX[1]); + oX2[3] = -(oX1[0] = iX[0]); + + oX2+=4; + }while(oX2<iX); + + iX=out+n2+n4; + oX1=out+n2+n4; + oX2=out+n2; + + do{ + oX1-=4; + oX1[0]= iX[3]; + oX1[1]= iX[2]; + oX1[2]= iX[1]; + oX1[3]= iX[0]; + iX+=4; + }while(oX1>oX2); + } +} + diff --git a/media/libtremor/lib/tremor_registry.c b/media/libtremor/lib/tremor_registry.c new file mode 100644 index 000000000..c0b5fec0c --- /dev/null +++ b/media/libtremor/lib/tremor_registry.c @@ -0,0 +1,50 @@ +/******************************************************************** + * * + * 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: registry for floor, res backends and channel mappings + + ********************************************************************/ + +#include "ivorbiscodec.h" +#include "codec_internal.h" +#include "registry.h" +#include "misc.h" + + +/* seems like major overkill now; the backend numbers will grow into + the infrastructure soon enough */ + +extern vorbis_func_floor floor0_exportbundle; +extern vorbis_func_floor floor1_exportbundle; +extern vorbis_func_residue residue0_exportbundle; +extern vorbis_func_residue residue1_exportbundle; +extern vorbis_func_residue residue2_exportbundle; +extern vorbis_func_mapping mapping0_exportbundle; + +vorbis_func_floor *_floor_P[]={ + &floor0_exportbundle, + &floor1_exportbundle, +}; + +vorbis_func_residue *_residue_P[]={ + &residue0_exportbundle, + &residue1_exportbundle, + &residue2_exportbundle, +}; + +vorbis_func_mapping *_mapping_P[]={ + &mapping0_exportbundle, +}; + + + diff --git a/media/libtremor/lib/tremor_res012.c b/media/libtremor/lib/tremor_res012.c new file mode 100644 index 000000000..f036caaa4 --- /dev/null +++ b/media/libtremor/lib/tremor_res012.c @@ -0,0 +1,374 @@ +/******************************************************************** + * * + * 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: residue backend 0, 1 and 2 implementation + + ********************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codec_internal.h" +#include "registry.h" +#include "codebook.h" +#include "misc.h" +#include "os.h" +#include "block.h" + +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){ + 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); + } +} + +static int ilog(unsigned int v){ + int ret=0; + while(v){ + ret++; + v>>=1; + } + 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 */ +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; + + 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); + + /* check for premature EOP */ + if(info->groupbook<0)goto errout; + + for(j=0;j<info->partitions;j++){ + int cascade=oggpack_read(opb,3); + int cflag=oggpack_read(opb,1); + if(cflag<0) goto errout; + if(cflag){ + int c=oggpack_read(opb,5); + if(c<0) goto errout; + cascade|=(c<<3); + } + info->secondstages[j]=cascade; + + acc+=icount(cascade); + } + for(j=0;j<acc;j++){ + int book=oggpack_read(opb,8); + if(book<0) goto errout; + info->booklist[j]=book; + } + + if(info->groupbook>=ci->books)goto errout; + for(j=0;j<acc;j++){ + if(info->booklist[j]>=ci->books)goto errout; + if(ci->book_param[info->booklist[j]]->maptype==0)goto errout; + } + + /* verify the phrasebook is not specifying an impossible or + inconsistent partitioning scheme. */ + /* modify the phrasebook ranging check from r16327; an early beta + encoder had a bug where it used an oversized phrasebook by + accident. These files should continue to be playable, but don't + allow an exploit */ + { + int entries = ci->book_param[info->groupbook]->entries; + int dim = ci->book_param[info->groupbook]->dim; + int partvals = 1; + if (dim<1) goto errout; + while(dim>0){ + partvals *= info->partitions; + if(partvals > entries) goto errout; + dim--; + } + info->partvals = partvals; + } + + 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; + + 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 + } + } + } + + 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(look); +} + + +/* 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=look->phrasebook->dim; + int max=vb->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])); + + for(s=0;s<look->stages;s++){ + + /* 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 || temp>=info->partvals)goto eopbreak; + partword[j][l]=look->decodemap[temp]; + if(partword[j][l]==NULL)goto errout; + } + } + + /* 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; + } + } + } + } + } + } + errout: + eopbreak: + 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 || temp>=info->partvals)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 +}; diff --git a/media/libtremor/lib/tremor_sharedbook.c b/media/libtremor/lib/tremor_sharedbook.c new file mode 100644 index 000000000..188485e3f --- /dev/null +++ b/media/libtremor/lib/tremor_sharedbook.c @@ -0,0 +1,447 @@ +/******************************************************************** + * * + * 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: basic shared codebook operations + + ********************************************************************/ + +#include <stdlib.h> +#include <math.h> +#include <string.h> +#include <ogg/ogg.h> +#include "misc.h" +#include "ivorbiscodec.h" +#include "codebook.h" + +/**** pack/unpack helpers ******************************************/ +int _ilog(unsigned int v){ + int ret=0; + while(v){ + ret++; + v>>=1; + } + return(ret); +} + +/* 32 bit float (not IEEE; nonnormalized mantissa + + biased exponent) : neeeeeee eeemmmmm mmmmmmmm mmmmmmmm + Why not IEEE? It's just not that important here. */ + +#define VQ_FEXP 10 +#define VQ_FMAN 21 +#define VQ_FEXP_BIAS 768 /* bias toward values smaller than 1. */ + +static ogg_int32_t _float32_unpack(long val,int *point){ + long mant=val&0x1fffff; + int sign=val&0x80000000; + long exp =(val&0x7fe00000L)>>VQ_FMAN; + + exp-=(VQ_FMAN-1)+VQ_FEXP_BIAS; + + if(mant){ + while(!(mant&0x40000000)){ + mant<<=1; + exp-=1; + } + + if(sign)mant= -mant; + }else{ + sign=0; + exp=-9999; + } + + *point=exp; + return mant; +} + +/* given a list of word lengths, generate a list of codewords. Works + for length ordered or unordered, always assigns the lowest valued + codewords first. Extended to handle unused entries (length 0) */ +ogg_uint32_t *_make_words(long *l,long n,long sparsecount){ + long i,j,count=0; + ogg_uint32_t marker[33]; + ogg_uint32_t *r=(ogg_uint32_t *)_ogg_malloc((sparsecount?sparsecount:n)*sizeof(*r)); + memset(marker,0,sizeof(marker)); + + for(i=0;i<n;i++){ + long length=l[i]; + if(length>0){ + ogg_uint32_t entry=marker[length]; + + /* when we claim a node for an entry, we also claim the nodes + below it (pruning off the imagined tree that may have dangled + from it) as well as blocking the use of any nodes directly + above for leaves */ + + /* update ourself */ + if(length<32 && (entry>>length)){ + /* error condition; the lengths must specify an overpopulated tree */ + _ogg_free(r); + return(NULL); + } + r[count++]=entry; + + /* Look to see if the next shorter marker points to the node + above. if so, update it and repeat. */ + { + for(j=length;j>0;j--){ + + if(marker[j]&1){ + /* have to jump branches */ + if(j==1) + marker[1]++; + else + marker[j]=marker[j-1]<<1; + break; /* invariant says next upper marker would already + have been moved if it was on the same path */ + } + marker[j]++; + } + } + + /* prune the tree; the implicit invariant says all the longer + markers were dangling from our just-taken node. Dangle them + from our *new* node. */ + for(j=length+1;j<33;j++) + if((marker[j]>>1) == entry){ + entry=marker[j]; + marker[j]=marker[j-1]<<1; + }else + break; + }else + if(sparsecount==0)count++; + } + + /* sanity check the huffman tree; an underpopulated tree must be + rejected. The only exception is the one-node pseudo-nil tree, + which appears to be underpopulated because the tree doesn't + really exist; there's only one possible 'codeword' or zero bits, + but the above tree-gen code doesn't mark that. */ + if(sparsecount != 1){ + for(i=1;i<33;i++) + if(marker[i] & (0xffffffffUL>>(32-i))){ + _ogg_free(r); + return(NULL); + } + } + + /* bitreverse the words because our bitwise packer/unpacker is LSb + endian */ + for(i=0,count=0;i<n;i++){ + ogg_uint32_t temp=0; + for(j=0;j<l[i];j++){ + temp<<=1; + temp|=(r[count]>>j)&1; + } + + if(sparsecount){ + if(l[i]) + r[count++]=temp; + }else + r[count++]=temp; + } + + return(r); +} + +/* there might be a straightforward one-line way to do the below + that's portable and totally safe against roundoff, but I haven't + thought of it. Therefore, we opt on the side of caution */ +long _book_maptype1_quantvals(const static_codebook *b){ + /* get us a starting hint, we'll polish it below */ + int bits=_ilog(b->entries); + int vals=b->entries>>((bits-1)*(b->dim-1)/b->dim); + + while(1){ + long acc=1; + long acc1=1; + int i; + for(i=0;i<b->dim;i++){ + acc*=vals; + acc1*=vals+1; + } + if(acc<=b->entries && acc1>b->entries){ + return(vals); + }else{ + if(acc>b->entries){ + vals--; + }else{ + vals++; + } + } + } +} + +/* different than what _book_unquantize does for mainline: + we repack the book in a fixed point format that shares the same + binary point. Upon first use, we can shift point if needed */ + +/* we need to deal with two map types: in map type 1, the values are + generated algorithmically (each column of the vector counts through + the values in the quant vector). in map type 2, all the values came + in in an explicit list. Both value lists must be unpacked */ + +ogg_int32_t *_book_unquantize(const static_codebook *b,int n,int *sparsemap, + int *maxpoint){ + long j,k,count=0; + if(b->maptype==1 || b->maptype==2){ + int quantvals; + int minpoint,delpoint; + ogg_int32_t mindel=_float32_unpack(b->q_min,&minpoint); + ogg_int32_t delta=_float32_unpack(b->q_delta,&delpoint); + ogg_int32_t *r=(ogg_int32_t *)_ogg_calloc(n*b->dim,sizeof(*r)); + int *rp=(int *)_ogg_calloc(n*b->dim,sizeof(*rp)); + + *maxpoint=minpoint; + + /* maptype 1 and 2 both use a quantized value vector, but + different sizes */ + switch(b->maptype){ + case 1: + /* most of the time, entries%dimensions == 0, but we need to be + well defined. We define that the possible vales at each + scalar is values == entries/dim. If entries%dim != 0, we'll + have 'too few' values (values*dim<entries), which means that + we'll have 'left over' entries; left over entries use zeroed + values (and are wasted). So don't generate codebooks like + that */ + quantvals=_book_maptype1_quantvals(b); + for(j=0;j<b->entries;j++){ + if((sparsemap && b->lengthlist[j]) || !sparsemap){ + ogg_int32_t last=0; + int lastpoint=0; + int indexdiv=1; + for(k=0;k<b->dim;k++){ + int index= (j/indexdiv)%quantvals; + int point=0; + int val=VFLOAT_MULTI(delta,delpoint, + abs(b->quantlist[index]),&point); + + val=VFLOAT_ADD(mindel,minpoint,val,point,&point); + val=VFLOAT_ADD(last,lastpoint,val,point,&point); + + if(b->q_sequencep){ + last=val; + lastpoint=point; + } + + if(sparsemap){ + r[sparsemap[count]*b->dim+k]=val; + rp[sparsemap[count]*b->dim+k]=point; + }else{ + r[count*b->dim+k]=val; + rp[count*b->dim+k]=point; + } + if(*maxpoint<point)*maxpoint=point; + indexdiv*=quantvals; + } + count++; + } + + } + break; + case 2: + for(j=0;j<b->entries;j++){ + if((sparsemap && b->lengthlist[j]) || !sparsemap){ + ogg_int32_t last=0; + int lastpoint=0; + + for(k=0;k<b->dim;k++){ + int point=0; + int val=VFLOAT_MULTI(delta,delpoint, + abs(b->quantlist[j*b->dim+k]),&point); + + val=VFLOAT_ADD(mindel,minpoint,val,point,&point); + val=VFLOAT_ADD(last,lastpoint,val,point,&point); + + if(b->q_sequencep){ + last=val; + lastpoint=point; + } + + if(sparsemap){ + r[sparsemap[count]*b->dim+k]=val; + rp[sparsemap[count]*b->dim+k]=point; + }else{ + r[count*b->dim+k]=val; + rp[count*b->dim+k]=point; + } + if(*maxpoint<point)*maxpoint=point; + } + count++; + } + } + break; + } + + for(j=0;j<n*b->dim;j++) + if(rp[j]<*maxpoint) + r[j]>>=*maxpoint-rp[j]; + + _ogg_free(rp); + return(r); + } + return(NULL); +} + +void vorbis_staticbook_destroy(static_codebook *b){ + if(b->quantlist)_ogg_free(b->quantlist); + if(b->lengthlist)_ogg_free(b->lengthlist); + memset(b,0,sizeof(*b)); + _ogg_free(b); +} + +void vorbis_book_clear(codebook *b){ + /* static book is not cleared; we're likely called on the lookup and + the static codebook belongs to the info struct */ + if(b->valuelist)_ogg_free(b->valuelist); + if(b->codelist)_ogg_free(b->codelist); + + if(b->dec_index)_ogg_free(b->dec_index); + if(b->dec_codelengths)_ogg_free(b->dec_codelengths); + if(b->dec_firsttable)_ogg_free(b->dec_firsttable); + + memset(b,0,sizeof(*b)); +} + +static ogg_uint32_t bitreverse(ogg_uint32_t x){ + x= ((x>>16)&0x0000ffffUL) | ((x<<16)&0xffff0000UL); + x= ((x>> 8)&0x00ff00ffUL) | ((x<< 8)&0xff00ff00UL); + x= ((x>> 4)&0x0f0f0f0fUL) | ((x<< 4)&0xf0f0f0f0UL); + x= ((x>> 2)&0x33333333UL) | ((x<< 2)&0xccccccccUL); + return((x>> 1)&0x55555555UL) | ((x<< 1)&0xaaaaaaaaUL); +} + +static int sort32a(const void *a,const void *b){ + return (**(ogg_uint32_t **)a>**(ogg_uint32_t **)b)- + (**(ogg_uint32_t **)a<**(ogg_uint32_t **)b); +} + +/* decode codebook arrangement is more heavily optimized than encode */ +int vorbis_book_init_decode(codebook *c,const static_codebook *s){ + int i,j,n=0,tabn; + int *sortindex; + memset(c,0,sizeof(*c)); + + /* count actually used entries */ + for(i=0;i<s->entries;i++) + if(s->lengthlist[i]>0) + n++; + + c->entries=s->entries; + c->used_entries=n; + c->dim=s->dim; + + if(n>0){ + /* two different remappings go on here. + + First, we collapse the likely sparse codebook down only to + actually represented values/words. This collapsing needs to be + indexed as map-valueless books are used to encode original entry + positions as integers. + + Second, we reorder all vectors, including the entry index above, + by sorted bitreversed codeword to allow treeless decode. */ + + /* perform sort */ + ogg_uint32_t *codes=_make_words(s->lengthlist,s->entries,c->used_entries); + ogg_uint32_t **codep=(ogg_uint32_t **)alloca(sizeof(*codep)*n); + + if(codes==NULL)goto err_out; + + for(i=0;i<n;i++){ + codes[i]=bitreverse(codes[i]); + codep[i]=codes+i; + } + + qsort(codep,n,sizeof(*codep),sort32a); + + sortindex=(int *)alloca(n*sizeof(*sortindex)); + c->codelist=(ogg_uint32_t *)_ogg_malloc(n*sizeof(*c->codelist)); + /* the index is a reverse index */ + for(i=0;i<n;i++){ + int position=codep[i]-codes; + sortindex[position]=i; + } + + for(i=0;i<n;i++) + c->codelist[sortindex[i]]=codes[i]; + _ogg_free(codes); + + + + c->valuelist=_book_unquantize(s,n,sortindex,&c->binarypoint); + c->dec_index=(int *)_ogg_malloc(n*sizeof(*c->dec_index)); + + for(n=0,i=0;i<s->entries;i++) + if(s->lengthlist[i]>0) + c->dec_index[sortindex[n++]]=i; + + c->dec_codelengths=(char *)_ogg_malloc(n*sizeof(*c->dec_codelengths)); + for(n=0,i=0;i<s->entries;i++) + if(s->lengthlist[i]>0) + c->dec_codelengths[sortindex[n++]]=s->lengthlist[i]; + + c->dec_firsttablen=_ilog(c->used_entries)-4; /* this is magic */ + if(c->dec_firsttablen<5)c->dec_firsttablen=5; + if(c->dec_firsttablen>8)c->dec_firsttablen=8; + + tabn=1<<c->dec_firsttablen; + c->dec_firsttable=(ogg_uint32_t *)_ogg_calloc(tabn,sizeof(*c->dec_firsttable)); + c->dec_maxlength=0; + + for(i=0;i<n;i++){ + if(c->dec_maxlength<c->dec_codelengths[i]) + c->dec_maxlength=c->dec_codelengths[i]; + if(c->dec_codelengths[i]<=c->dec_firsttablen){ + ogg_uint32_t orig=bitreverse(c->codelist[i]); + for(j=0;j<(1<<(c->dec_firsttablen-c->dec_codelengths[i]));j++) + c->dec_firsttable[orig|(j<<c->dec_codelengths[i])]=i+1; + } + } + + /* now fill in 'unused' entries in the firsttable with hi/lo search + hints for the non-direct-hits */ + { + ogg_uint32_t mask=0xfffffffeUL<<(31-c->dec_firsttablen); + long lo=0,hi=0; + + for(i=0;i<tabn;i++){ + ogg_uint32_t word=i<<(32-c->dec_firsttablen); + if(c->dec_firsttable[bitreverse(word)]==0){ + while((lo+1)<n && c->codelist[lo+1]<=word)lo++; + while( hi<n && word>=(c->codelist[hi]&mask))hi++; + + /* we only actually have 15 bits per hint to play with here. + In order to overflow gracefully (nothing breaks, efficiency + just drops), encode as the difference from the extremes. */ + { + unsigned long loval=lo; + unsigned long hival=n-hi; + + if(loval>0x7fff)loval=0x7fff; + if(hival>0x7fff)hival=0x7fff; + c->dec_firsttable[bitreverse(word)]= + 0x80000000UL | (loval<<15) | hival; + } + } + } + } + } + + return(0); + err_out: + vorbis_book_clear(c); + return(-1); +} + diff --git a/media/libtremor/lib/tremor_synthesis.c b/media/libtremor/lib/tremor_synthesis.c new file mode 100644 index 000000000..c7680f6d0 --- /dev/null +++ b/media/libtremor/lib/tremor_synthesis.c @@ -0,0 +1,131 @@ +/******************************************************************** + * * + * 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 1994-2003 * + * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * + * * + ******************************************************************** + + function: single-block PCM synthesis + last mod: $Id: synthesis.c,v 1.4 2003/03/29 03:07:21 xiphmont Exp $ + + ********************************************************************/ + +#include <stdio.h> +#include <ogg/ogg.h> +#include "ivorbiscodec.h" +#include "codec_internal.h" +#include "registry.h" +#include "misc.h" +#include "block.h" + +static int _vorbis_synthesis1(vorbis_block *vb,ogg_packet *op,int decodep){ + vorbis_dsp_state *vd= vb ? vb->vd : 0; + private_state *b= vd ? (private_state *)vd->backend_state: 0; + vorbis_info *vi= vd ? vd->vi : 0; + codec_setup_info *ci= vi ? (codec_setup_info *)vi->codec_setup : 0; + oggpack_buffer *opb=vb ? &vb->opb : 0; + int type,mode,i; + + if (!vd || !b || !vi || !ci || !opb) { + return OV_EBADPACKET; + } + + /* first things first. Make sure decode is ready */ + _vorbis_block_ripcord(vb); + oggpack_readinit(opb,op->packet,op->bytes); + + /* Check the packet type */ + if(oggpack_read(opb,1)!=0){ + /* Oops. This is not an audio data packet */ + return(OV_ENOTAUDIO); + } + + /* read our mode and pre/post windowsize */ + mode=oggpack_read(opb,b->modebits); + if(mode==-1)return(OV_EBADPACKET); + + vb->mode=mode; + if(!ci->mode_param[mode]){ + return(OV_EBADPACKET); + } + + vb->W=ci->mode_param[mode]->blockflag; + if(vb->W){ + vb->lW=oggpack_read(opb,1); + vb->nW=oggpack_read(opb,1); + if(vb->nW==-1) return(OV_EBADPACKET); + }else{ + vb->lW=0; + vb->nW=0; + } + + /* more setup */ + vb->granulepos=op->granulepos; + vb->sequence=op->packetno-3; /* first block is third packet */ + vb->eofflag=op->e_o_s; + + if(decodep){ + /* alloc pcm passback storage */ + vb->pcmend=ci->blocksizes[vb->W]; + vb->pcm=(ogg_int32_t **)_vorbis_block_alloc(vb,sizeof(*vb->pcm)*vi->channels); + for(i=0;i<vi->channels;i++) + vb->pcm[i]=(ogg_int32_t *)_vorbis_block_alloc(vb,vb->pcmend*sizeof(*vb->pcm[i])); + + /* unpack_header enforces range checking */ + type=ci->map_type[ci->mode_param[mode]->mapping]; + + return(_mapping_P[type]->inverse(vb,b->mode[mode])); + }else{ + /* no pcm */ + vb->pcmend=0; + vb->pcm=NULL; + + return(0); + } +} + +int vorbis_synthesis(vorbis_block *vb,ogg_packet *op){ + return _vorbis_synthesis1(vb,op,1); +} + +/* used to track pcm position without actually performing decode. + Useful for sequential 'fast forward' */ +int vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op){ + return _vorbis_synthesis1(vb,op,0); +} + +long vorbis_packet_blocksize(vorbis_info *vi,ogg_packet *op){ + codec_setup_info *ci=(codec_setup_info *)vi->codec_setup; + oggpack_buffer opb; + int mode; + + oggpack_readinit(&opb,op->packet,op->bytes); + + /* Check the packet type */ + if(oggpack_read(&opb,1)!=0){ + /* Oops. This is not an audio data packet */ + return(OV_ENOTAUDIO); + } + + { + int modebits=0; + int v=ci->modes; + while(v>1){ + modebits++; + v>>=1; + } + + /* read our mode and pre/post windowsize */ + mode=oggpack_read(&opb,modebits); + } + if(mode==-1 || !ci->mode_param[mode])return(OV_EBADPACKET); + return(ci->blocksizes[ci->mode_param[mode]->blockflag]); +} + + diff --git a/media/libtremor/lib/tremor_window.c b/media/libtremor/lib/tremor_window.c new file mode 100644 index 000000000..006a1ee6b --- /dev/null +++ b/media/libtremor/lib/tremor_window.c @@ -0,0 +1,83 @@ +/******************************************************************** + * * + * 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: window functions + + ********************************************************************/ + +#include <stdlib.h> +#include <math.h> +#include "misc.h" +#include "window.h" +#include "window_lookup.h" + +const void *_vorbis_window(int type, int left){ + + switch(type){ + case 0: + + switch(left){ + case 32: + return vwin64; + case 64: + return vwin128; + case 128: + return vwin256; + case 256: + return vwin512; + case 512: + return vwin1024; + case 1024: + return vwin2048; + case 2048: + return vwin4096; + case 4096: + return vwin8192; + default: + return(0); + } + break; + default: + return(0); + } +} + +void _vorbis_apply_window(ogg_int32_t *d,const void *window_p[2], + long *blocksizes, + int lW,int W,int nW){ + + LOOKUP_T *window[2]={window_p[0],window_p[1]}; + long n=blocksizes[W]; + long ln=blocksizes[lW]; + long rn=blocksizes[nW]; + + long leftbegin=n/4-ln/4; + long leftend=leftbegin+ln/2; + + long rightbegin=n/2+n/4-rn/4; + long rightend=rightbegin+rn/2; + + int i,p; + + for(i=0;i<leftbegin;i++) + d[i]=0; + + for(p=0;i<leftend;i++,p++) + d[i]=MULT31(d[i],window[lW][p]); + + for(i=rightbegin,p=rn/2-1;i<rightend;i++,p--) + d[i]=MULT31(d[i],window[nW][p]); + + for(;i<n;i++) + d[i]=0; +} diff --git a/media/libtremor/lib/window.h b/media/libtremor/lib/window.h new file mode 100644 index 000000000..27647fe62 --- /dev/null +++ b/media/libtremor/lib/window.h @@ -0,0 +1,27 @@ +/******************************************************************** + * * + * 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: window functions + + ********************************************************************/ + +#ifndef _V_WINDOW_ +#define _V_WINDOW_ + +extern const void *_vorbis_window(int type,int left); +extern void _vorbis_apply_window(ogg_int32_t *d,const void *window[2], + long *blocksizes, + int lW,int W,int nW); + + +#endif diff --git a/media/libtremor/lib/window_lookup.h b/media/libtremor/lib/window_lookup.h new file mode 100644 index 000000000..fc0494e69 --- /dev/null +++ b/media/libtremor/lib/window_lookup.h @@ -0,0 +1,2084 @@ +/******************************************************************** + * * + * 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: window lookup tables + + ********************************************************************/ + + +#include <ogg/os_types.h> + +static const LOOKUP_T vwin64[32] = { + X(0x001f0003), X(0x01168c98), X(0x030333c8), X(0x05dfe3a4), + X(0x09a49562), X(0x0e45df18), X(0x13b47ef2), X(0x19dcf676), + X(0x20a74d83), X(0x27f7137c), X(0x2fabb05a), X(0x37a1105a), + X(0x3fb0ab28), X(0x47b2dcd1), X(0x4f807bc6), X(0x56f48e70), + X(0x5dedfc79), X(0x64511653), X(0x6a08cfff), X(0x6f079328), + X(0x734796f4), X(0x76cab7f2), X(0x7999d6e8), X(0x7bc3cf9f), + X(0x7d5c20c1), X(0x7e7961df), X(0x7f33a567), X(0x7fa2e1d0), + X(0x7fdd78a5), X(0x7ff6ec6d), X(0x7ffed0e9), X(0x7ffffc3f), +}; + +static const LOOKUP_T vwin128[64] = { + X(0x0007c04d), X(0x0045bb89), X(0x00c18b87), X(0x017ae294), + X(0x02714a4e), X(0x03a4217a), X(0x05129952), X(0x06bbb24f), + X(0x089e38a1), X(0x0ab8c073), X(0x0d09a228), X(0x0f8ef6bd), + X(0x12469488), X(0x152e0c7a), X(0x1842a81c), X(0x1b81686d), + X(0x1ee705d9), X(0x226ff15d), X(0x26185705), X(0x29dc21cc), + X(0x2db700fe), X(0x31a46f08), X(0x359fb9c1), X(0x39a40c0c), + X(0x3dac78b6), X(0x41b40674), X(0x45b5bcb0), X(0x49acb109), + X(0x4d94152b), X(0x516744bd), X(0x5521d320), X(0x58bf98a5), + X(0x5c3cbef4), X(0x5f95cc5d), X(0x62c7add7), X(0x65cfbf64), + X(0x68abd2ba), X(0x6b5a3405), X(0x6dd9acab), X(0x7029840d), + X(0x72497e38), X(0x7439d8ac), X(0x75fb4532), X(0x778ee30a), + X(0x78f6367e), X(0x7a331f1a), X(0x7b47cccd), X(0x7c36b416), + X(0x7d028192), X(0x7dae0d18), X(0x7e3c4caa), X(0x7eb04763), + X(0x7f0d08a7), X(0x7f5593b7), X(0x7f8cd7d5), X(0x7fb5a513), + X(0x7fd2a1fc), X(0x7fe64212), X(0x7ff2bd4c), X(0x7ffa0890), + X(0x7ffdcf39), X(0x7fff6dac), X(0x7fffed01), X(0x7fffffc4), +}; + +static const LOOKUP_T vwin256[128] = { + X(0x0001f018), X(0x00117066), X(0x00306e9e), X(0x005ee5f1), + X(0x009ccf26), X(0x00ea208b), X(0x0146cdea), X(0x01b2c87f), + X(0x022dfedf), X(0x02b85ced), X(0x0351cbbd), X(0x03fa317f), + X(0x04b17167), X(0x05776b90), X(0x064bfcdc), X(0x072efedd), + X(0x082047b4), X(0x091fa9f1), X(0x0a2cf477), X(0x0b47f25d), + X(0x0c706ad2), X(0x0da620ff), X(0x0ee8d3ef), X(0x10383e75), + X(0x11941716), X(0x12fc0ff6), X(0x146fd6c8), X(0x15ef14c2), + X(0x17796e8e), X(0x190e844f), X(0x1aadf196), X(0x1c574d6e), + X(0x1e0a2a62), X(0x1fc61688), X(0x218a9b9c), X(0x23573f12), + X(0x252b823d), X(0x2706e269), X(0x28e8d913), X(0x2ad0dc0e), + X(0x2cbe5dc1), X(0x2eb0cd60), X(0x30a79733), X(0x32a224d5), + X(0x349fdd8b), X(0x36a02690), X(0x38a2636f), X(0x3aa5f65e), + X(0x3caa409e), X(0x3eaea2df), X(0x40b27da6), X(0x42b531b8), + X(0x44b62086), X(0x46b4ac99), X(0x48b03a05), X(0x4aa82ed5), + X(0x4c9bf37d), X(0x4e8af349), X(0x50749ccb), X(0x52586246), + X(0x5435ba1c), X(0x560c1f31), X(0x57db1152), X(0x59a21591), + X(0x5b60b6a3), X(0x5d168535), X(0x5ec31839), X(0x60660d36), + X(0x61ff0886), X(0x638db595), X(0x6511c717), X(0x668af734), + X(0x67f907b0), X(0x695bc207), X(0x6ab2f787), X(0x6bfe815a), + X(0x6d3e4090), X(0x6e721e16), X(0x6f9a0ab5), X(0x70b5fef8), + X(0x71c5fb16), X(0x72ca06cd), X(0x73c2313d), X(0x74ae90b2), + X(0x758f4275), X(0x76646a85), X(0x772e335c), X(0x77eccda0), + X(0x78a06fd7), X(0x79495613), X(0x79e7c19c), X(0x7a7bf894), + X(0x7b064596), X(0x7b86f757), X(0x7bfe6044), X(0x7c6cd615), + X(0x7cd2b16e), X(0x7d304d71), X(0x7d860756), X(0x7dd43e06), + X(0x7e1b51ad), X(0x7e5ba355), X(0x7e95947e), X(0x7ec986bb), + X(0x7ef7db4a), X(0x7f20f2b9), X(0x7f452c7f), X(0x7f64e6a7), + X(0x7f807d71), X(0x7f984aff), X(0x7faca700), X(0x7fbde662), + X(0x7fcc5b04), X(0x7fd85372), X(0x7fe21a99), X(0x7fe9f791), + X(0x7ff02d58), X(0x7ff4fa9e), X(0x7ff89990), X(0x7ffb3faa), + X(0x7ffd1d8b), X(0x7ffe5ecc), X(0x7fff29e0), X(0x7fff9ff3), + X(0x7fffdcd2), X(0x7ffff6d6), X(0x7ffffed0), X(0x7ffffffc), +}; + +static const LOOKUP_T vwin512[256] = { + X(0x00007c06), X(0x00045c32), X(0x000c1c62), X(0x0017bc4c), + X(0x00273b7a), X(0x003a9955), X(0x0051d51c), X(0x006cede7), + X(0x008be2a9), X(0x00aeb22a), X(0x00d55b0d), X(0x00ffdbcc), + X(0x012e32b6), X(0x01605df5), X(0x01965b85), X(0x01d02939), + X(0x020dc4ba), X(0x024f2b83), X(0x02945ae6), X(0x02dd5004), + X(0x032a07d3), X(0x037a7f19), X(0x03ceb26e), X(0x04269e37), + X(0x04823eab), X(0x04e18fcc), X(0x05448d6d), X(0x05ab3329), + X(0x06157c68), X(0x0683645e), X(0x06f4e607), X(0x0769fc25), + X(0x07e2a146), X(0x085ecfbc), X(0x08de819f), X(0x0961b0cc), + X(0x09e856e3), X(0x0a726d46), X(0x0affed1d), X(0x0b90cf4c), + X(0x0c250c79), X(0x0cbc9d0b), X(0x0d577926), X(0x0df598aa), + X(0x0e96f337), X(0x0f3b8026), X(0x0fe3368f), X(0x108e0d42), + X(0x113bfaca), X(0x11ecf56b), X(0x12a0f324), X(0x1357e9ac), + X(0x1411ce70), X(0x14ce9698), X(0x158e3702), X(0x1650a444), + X(0x1715d2aa), X(0x17ddb638), X(0x18a842aa), X(0x19756b72), + X(0x1a4523b9), X(0x1b175e62), X(0x1bec0e04), X(0x1cc324f0), + X(0x1d9c9532), X(0x1e78508a), X(0x1f564876), X(0x20366e2e), + X(0x2118b2a2), X(0x21fd0681), X(0x22e35a37), X(0x23cb9dee), + X(0x24b5c18e), X(0x25a1b4c0), X(0x268f66f1), X(0x277ec74e), + X(0x286fc4cc), X(0x29624e23), X(0x2a5651d7), X(0x2b4bbe34), + X(0x2c428150), X(0x2d3a8913), X(0x2e33c332), X(0x2f2e1d35), + X(0x30298478), X(0x3125e62d), X(0x32232f61), X(0x33214cfc), + X(0x34202bc2), X(0x351fb85a), X(0x361fdf4f), X(0x37208d10), + X(0x3821adf7), X(0x39232e49), X(0x3a24fa3c), X(0x3b26fdf6), + X(0x3c292593), X(0x3d2b5d29), X(0x3e2d90c8), X(0x3f2fac7f), + X(0x40319c5f), X(0x41334c81), X(0x4234a905), X(0x43359e16), + X(0x443617f3), X(0x453602eb), X(0x46354b65), X(0x4733dde1), + X(0x4831a6ff), X(0x492e937f), X(0x4a2a9045), X(0x4b258a5f), + X(0x4c1f6f06), X(0x4d182ba2), X(0x4e0fadce), X(0x4f05e35b), + X(0x4ffaba53), X(0x50ee20fd), X(0x51e005e1), X(0x52d057ca), + X(0x53bf05ca), X(0x54abff3b), X(0x559733c7), X(0x56809365), + X(0x57680e62), X(0x584d955d), X(0x59311952), X(0x5a128b96), + X(0x5af1dddd), X(0x5bcf023a), X(0x5ca9eb27), X(0x5d828b81), + X(0x5e58d68d), X(0x5f2cbffc), X(0x5ffe3be9), X(0x60cd3edf), + X(0x6199bdda), X(0x6263ae45), X(0x632b0602), X(0x63efbb66), + X(0x64b1c53f), X(0x65711ad0), X(0x662db3d7), X(0x66e7888d), + X(0x679e91a5), X(0x6852c84e), X(0x69042635), X(0x69b2a582), + X(0x6a5e40dd), X(0x6b06f36c), X(0x6bacb8d2), X(0x6c4f8d30), + X(0x6cef6d26), X(0x6d8c55d4), X(0x6e2644d4), X(0x6ebd3840), + X(0x6f512ead), X(0x6fe2272e), X(0x7070214f), X(0x70fb1d17), + X(0x71831b06), X(0x72081c16), X(0x728a21b5), X(0x73092dc8), + X(0x738542a6), X(0x73fe631b), X(0x74749261), X(0x74e7d421), + X(0x75582c72), X(0x75c59fd5), X(0x76303333), X(0x7697ebdd), + X(0x76fccf85), X(0x775ee443), X(0x77be308a), X(0x781abb2e), + X(0x78748b59), X(0x78cba88e), X(0x79201aa7), X(0x7971e9cd), + X(0x79c11e79), X(0x7a0dc170), X(0x7a57dbc2), X(0x7a9f76c1), + X(0x7ae49c07), X(0x7b27556b), X(0x7b67ad02), X(0x7ba5ad1b), + X(0x7be1603a), X(0x7c1ad118), X(0x7c520a9e), X(0x7c8717e1), + X(0x7cba0421), X(0x7ceadac3), X(0x7d19a74f), X(0x7d46756e), + X(0x7d7150e5), X(0x7d9a4592), X(0x7dc15f69), X(0x7de6aa71), + X(0x7e0a32c0), X(0x7e2c0479), X(0x7e4c2bc7), X(0x7e6ab4db), + X(0x7e87abe9), X(0x7ea31d24), X(0x7ebd14be), X(0x7ed59edd), + X(0x7eecc7a3), X(0x7f029b21), X(0x7f17255a), X(0x7f2a723f), + X(0x7f3c8daa), X(0x7f4d835d), X(0x7f5d5f00), X(0x7f6c2c1b), + X(0x7f79f617), X(0x7f86c83a), X(0x7f92ada2), X(0x7f9db146), + X(0x7fa7ddf3), X(0x7fb13e46), X(0x7fb9dcb0), X(0x7fc1c36c), + X(0x7fc8fc83), X(0x7fcf91c7), X(0x7fd58cd2), X(0x7fdaf702), + X(0x7fdfd979), X(0x7fe43d1c), X(0x7fe82a8b), X(0x7febaa29), + X(0x7feec412), X(0x7ff1801c), X(0x7ff3e5d6), X(0x7ff5fc86), + X(0x7ff7cb29), X(0x7ff9586f), X(0x7ffaaaba), X(0x7ffbc81e), + X(0x7ffcb660), X(0x7ffd7af3), X(0x7ffe1afa), X(0x7ffe9b42), + X(0x7fff0047), X(0x7fff4e2f), X(0x7fff88c9), X(0x7fffb390), + X(0x7fffd1a6), X(0x7fffe5d7), X(0x7ffff296), X(0x7ffff9fd), + X(0x7ffffdcd), X(0x7fffff6d), X(0x7fffffed), X(0x7fffffff), +}; + +static const LOOKUP_T vwin1024[512] = { + X(0x00001f02), X(0x0001170e), X(0x00030724), X(0x0005ef40), + X(0x0009cf59), X(0x000ea767), X(0x0014775e), X(0x001b3f2e), + X(0x0022fec8), X(0x002bb618), X(0x00356508), X(0x00400b81), + X(0x004ba968), X(0x00583ea0), X(0x0065cb0a), X(0x00744e84), + X(0x0083c8ea), X(0x00943a14), X(0x00a5a1da), X(0x00b80010), + X(0x00cb5488), X(0x00df9f10), X(0x00f4df76), X(0x010b1584), + X(0x01224101), X(0x013a61b2), X(0x01537759), X(0x016d81b6), + X(0x01888087), X(0x01a47385), X(0x01c15a69), X(0x01df34e6), + X(0x01fe02b1), X(0x021dc377), X(0x023e76e7), X(0x02601ca9), + X(0x0282b466), X(0x02a63dc1), X(0x02cab85d), X(0x02f023d6), + X(0x03167fcb), X(0x033dcbd3), X(0x03660783), X(0x038f3270), + X(0x03b94c29), X(0x03e4543a), X(0x04104a2e), X(0x043d2d8b), + X(0x046afdd5), X(0x0499ba8c), X(0x04c9632d), X(0x04f9f734), + X(0x052b7615), X(0x055ddf46), X(0x05913237), X(0x05c56e53), + X(0x05fa9306), X(0x06309fb6), X(0x066793c5), X(0x069f6e93), + X(0x06d82f7c), X(0x0711d5d9), X(0x074c60fe), X(0x0787d03d), + X(0x07c422e4), X(0x0801583e), X(0x083f6f91), X(0x087e681f), + X(0x08be4129), X(0x08fef9ea), X(0x0940919a), X(0x0983076d), + X(0x09c65a92), X(0x0a0a8a38), X(0x0a4f9585), X(0x0a957b9f), + X(0x0adc3ba7), X(0x0b23d4b9), X(0x0b6c45ee), X(0x0bb58e5a), + X(0x0bffad0f), X(0x0c4aa11a), X(0x0c966982), X(0x0ce3054d), + X(0x0d30737b), X(0x0d7eb308), X(0x0dcdc2eb), X(0x0e1da21a), + X(0x0e6e4f83), X(0x0ebfca11), X(0x0f1210ad), X(0x0f652238), + X(0x0fb8fd91), X(0x100da192), X(0x10630d11), X(0x10b93ee0), + X(0x111035cb), X(0x1167f09a), X(0x11c06e13), X(0x1219acf5), + X(0x1273abfb), X(0x12ce69db), X(0x1329e54a), X(0x13861cf3), + X(0x13e30f80), X(0x1440bb97), X(0x149f1fd8), X(0x14fe3ade), + X(0x155e0b40), X(0x15be8f92), X(0x161fc662), X(0x1681ae38), + X(0x16e4459b), X(0x17478b0b), X(0x17ab7d03), X(0x181019fb), + X(0x18756067), X(0x18db4eb3), X(0x1941e34a), X(0x19a91c92), + X(0x1a10f8ea), X(0x1a7976af), X(0x1ae29439), X(0x1b4c4fda), + X(0x1bb6a7e2), X(0x1c219a9a), X(0x1c8d2649), X(0x1cf9492e), + X(0x1d660188), X(0x1dd34d8e), X(0x1e412b74), X(0x1eaf996a), + X(0x1f1e959b), X(0x1f8e1e2f), X(0x1ffe3146), X(0x206ecd01), + X(0x20dfef78), X(0x215196c2), X(0x21c3c0f0), X(0x22366c10), + X(0x22a9962a), X(0x231d3d45), X(0x23915f60), X(0x2405fa7a), + X(0x247b0c8c), X(0x24f09389), X(0x25668d65), X(0x25dcf80c), + X(0x2653d167), X(0x26cb175e), X(0x2742c7d0), X(0x27bae09e), + X(0x28335fa2), X(0x28ac42b3), X(0x292587a5), X(0x299f2c48), + X(0x2a192e69), X(0x2a938bd1), X(0x2b0e4247), X(0x2b894f8d), + X(0x2c04b164), X(0x2c806588), X(0x2cfc69b2), X(0x2d78bb9a), + X(0x2df558f4), X(0x2e723f6f), X(0x2eef6cbb), X(0x2f6cde83), + X(0x2fea9270), X(0x30688627), X(0x30e6b74e), X(0x31652385), + X(0x31e3c86b), X(0x3262a39e), X(0x32e1b2b8), X(0x3360f352), + X(0x33e06303), X(0x345fff5e), X(0x34dfc5f8), X(0x355fb462), + X(0x35dfc82a), X(0x365ffee0), X(0x36e0560f), X(0x3760cb43), + X(0x37e15c05), X(0x386205df), X(0x38e2c657), X(0x39639af5), + X(0x39e4813e), X(0x3a6576b6), X(0x3ae678e3), X(0x3b678547), + X(0x3be89965), X(0x3c69b2c1), X(0x3ceacedc), X(0x3d6beb37), + X(0x3ded0557), X(0x3e6e1abb), X(0x3eef28e6), X(0x3f702d5a), + X(0x3ff1259a), X(0x40720f29), X(0x40f2e789), X(0x4173ac3f), + X(0x41f45ad0), X(0x4274f0c2), X(0x42f56b9a), X(0x4375c8e0), + X(0x43f6061d), X(0x447620db), X(0x44f616a5), X(0x4575e509), + X(0x45f58994), X(0x467501d6), X(0x46f44b62), X(0x477363cb), + X(0x47f248a6), X(0x4870f78e), X(0x48ef6e1a), X(0x496da9e8), + X(0x49eba897), X(0x4a6967c8), X(0x4ae6e521), X(0x4b641e47), + X(0x4be110e5), X(0x4c5dbaa7), X(0x4cda193f), X(0x4d562a5f), + X(0x4dd1ebbd), X(0x4e4d5b15), X(0x4ec87623), X(0x4f433aa9), + X(0x4fbda66c), X(0x5037b734), X(0x50b16acf), X(0x512abf0e), + X(0x51a3b1c5), X(0x521c40ce), X(0x52946a06), X(0x530c2b50), + X(0x53838292), X(0x53fa6db8), X(0x5470eab3), X(0x54e6f776), + X(0x555c91fc), X(0x55d1b844), X(0x56466851), X(0x56baa02f), + X(0x572e5deb), X(0x57a19f98), X(0x58146352), X(0x5886a737), + X(0x58f8696d), X(0x5969a81c), X(0x59da6177), X(0x5a4a93b4), + X(0x5aba3d0f), X(0x5b295bcb), X(0x5b97ee30), X(0x5c05f28d), + X(0x5c736738), X(0x5ce04a8d), X(0x5d4c9aed), X(0x5db856c1), + X(0x5e237c78), X(0x5e8e0a89), X(0x5ef7ff6f), X(0x5f6159b0), + X(0x5fca17d4), X(0x6032386e), X(0x6099ba15), X(0x61009b69), + X(0x6166db11), X(0x61cc77b9), X(0x62317017), X(0x6295c2e7), + X(0x62f96eec), X(0x635c72f1), X(0x63becdc8), X(0x64207e4b), + X(0x6481835a), X(0x64e1dbde), X(0x654186c8), X(0x65a0830e), + X(0x65fecfb1), X(0x665c6bb7), X(0x66b95630), X(0x67158e30), + X(0x677112d7), X(0x67cbe34b), X(0x6825feb9), X(0x687f6456), + X(0x68d81361), X(0x69300b1e), X(0x69874ada), X(0x69ddd1ea), + X(0x6a339fab), X(0x6a88b382), X(0x6add0cdb), X(0x6b30ab2a), + X(0x6b838dec), X(0x6bd5b4a6), X(0x6c271ee2), X(0x6c77cc36), + X(0x6cc7bc3d), X(0x6d16ee9b), X(0x6d6562fb), X(0x6db31911), + X(0x6e001099), X(0x6e4c4955), X(0x6e97c311), X(0x6ee27d9f), + X(0x6f2c78d9), X(0x6f75b4a2), X(0x6fbe30e4), X(0x7005ed91), + X(0x704ceaa1), X(0x70932816), X(0x70d8a5f8), X(0x711d6457), + X(0x7161634b), X(0x71a4a2f3), X(0x71e72375), X(0x7228e500), + X(0x7269e7c8), X(0x72aa2c0a), X(0x72e9b209), X(0x73287a12), + X(0x73668476), X(0x73a3d18f), X(0x73e061bc), X(0x741c3566), + X(0x74574cfa), X(0x7491a8ee), X(0x74cb49be), X(0x75042fec), + X(0x753c5c03), X(0x7573ce92), X(0x75aa882f), X(0x75e08979), + X(0x7615d313), X(0x764a65a7), X(0x767e41e5), X(0x76b16884), + X(0x76e3da40), X(0x771597dc), X(0x7746a221), X(0x7776f9dd), + X(0x77a69fe6), X(0x77d59514), X(0x7803da49), X(0x7831706a), + X(0x785e5861), X(0x788a9320), X(0x78b6219c), X(0x78e104cf), + X(0x790b3dbb), X(0x7934cd64), X(0x795db4d5), X(0x7985f51d), + X(0x79ad8f50), X(0x79d48486), X(0x79fad5de), X(0x7a208478), + X(0x7a45917b), X(0x7a69fe12), X(0x7a8dcb6c), X(0x7ab0fabb), + X(0x7ad38d36), X(0x7af5841a), X(0x7b16e0a3), X(0x7b37a416), + X(0x7b57cfb8), X(0x7b7764d4), X(0x7b9664b6), X(0x7bb4d0b0), + X(0x7bd2aa14), X(0x7beff23b), X(0x7c0caa7f), X(0x7c28d43c), + X(0x7c4470d2), X(0x7c5f81a5), X(0x7c7a081a), X(0x7c940598), + X(0x7cad7b8b), X(0x7cc66b5e), X(0x7cded680), X(0x7cf6be64), + X(0x7d0e247b), X(0x7d250a3c), X(0x7d3b711c), X(0x7d515a95), + X(0x7d66c822), X(0x7d7bbb3c), X(0x7d903563), X(0x7da43814), + X(0x7db7c4d0), X(0x7dcadd16), X(0x7ddd826a), X(0x7defb64d), + X(0x7e017a44), X(0x7e12cfd3), X(0x7e23b87f), X(0x7e3435cc), + X(0x7e444943), X(0x7e53f467), X(0x7e6338c0), X(0x7e7217d5), + X(0x7e80932b), X(0x7e8eac49), X(0x7e9c64b7), X(0x7ea9bdf8), + X(0x7eb6b994), X(0x7ec35910), X(0x7ecf9def), X(0x7edb89b6), + X(0x7ee71de9), X(0x7ef25c09), X(0x7efd4598), X(0x7f07dc16), + X(0x7f122103), X(0x7f1c15dc), X(0x7f25bc1f), X(0x7f2f1547), + X(0x7f3822cd), X(0x7f40e62b), X(0x7f4960d6), X(0x7f519443), + X(0x7f5981e7), X(0x7f612b31), X(0x7f689191), X(0x7f6fb674), + X(0x7f769b45), X(0x7f7d416c), X(0x7f83aa51), X(0x7f89d757), + X(0x7f8fc9df), X(0x7f958348), X(0x7f9b04ef), X(0x7fa0502e), + X(0x7fa56659), X(0x7faa48c7), X(0x7faef8c7), X(0x7fb377a7), + X(0x7fb7c6b3), X(0x7fbbe732), X(0x7fbfda67), X(0x7fc3a196), + X(0x7fc73dfa), X(0x7fcab0ce), X(0x7fcdfb4a), X(0x7fd11ea0), + X(0x7fd41c00), X(0x7fd6f496), X(0x7fd9a989), X(0x7fdc3bff), + X(0x7fdead17), X(0x7fe0fdee), X(0x7fe32f9d), X(0x7fe54337), + X(0x7fe739ce), X(0x7fe9146c), X(0x7fead41b), X(0x7fec79dd), + X(0x7fee06b2), X(0x7fef7b94), X(0x7ff0d97b), X(0x7ff22158), + X(0x7ff35417), X(0x7ff472a3), X(0x7ff57de0), X(0x7ff676ac), + X(0x7ff75de3), X(0x7ff8345a), X(0x7ff8fae4), X(0x7ff9b24b), + X(0x7ffa5b58), X(0x7ffaf6cd), X(0x7ffb8568), X(0x7ffc07e2), + X(0x7ffc7eed), X(0x7ffceb38), X(0x7ffd4d6d), X(0x7ffda631), + X(0x7ffdf621), X(0x7ffe3dd8), X(0x7ffe7dea), X(0x7ffeb6e7), + X(0x7ffee959), X(0x7fff15c4), X(0x7fff3ca9), X(0x7fff5e80), + X(0x7fff7bc0), X(0x7fff94d6), X(0x7fffaa2d), X(0x7fffbc29), + X(0x7fffcb29), X(0x7fffd786), X(0x7fffe195), X(0x7fffe9a3), + X(0x7fffeffa), X(0x7ffff4dd), X(0x7ffff889), X(0x7ffffb37), + X(0x7ffffd1a), X(0x7ffffe5d), X(0x7fffff29), X(0x7fffffa0), + X(0x7fffffdd), X(0x7ffffff7), X(0x7fffffff), X(0x7fffffff), +}; + +static const LOOKUP_T vwin2048[1024] = { + X(0x000007c0), X(0x000045c4), X(0x0000c1ca), X(0x00017bd3), + X(0x000273de), X(0x0003a9eb), X(0x00051df9), X(0x0006d007), + X(0x0008c014), X(0x000aee1e), X(0x000d5a25), X(0x00100428), + X(0x0012ec23), X(0x00161216), X(0x001975fe), X(0x001d17da), + X(0x0020f7a8), X(0x00251564), X(0x0029710c), X(0x002e0a9e), + X(0x0032e217), X(0x0037f773), X(0x003d4ab0), X(0x0042dbca), + X(0x0048aabe), X(0x004eb788), X(0x00550224), X(0x005b8a8f), + X(0x006250c5), X(0x006954c1), X(0x0070967e), X(0x007815f9), + X(0x007fd32c), X(0x0087ce13), X(0x009006a9), X(0x00987ce9), + X(0x00a130cc), X(0x00aa224f), X(0x00b3516b), X(0x00bcbe1a), + X(0x00c66856), X(0x00d0501a), X(0x00da755f), X(0x00e4d81f), + X(0x00ef7853), X(0x00fa55f4), X(0x010570fc), X(0x0110c963), + X(0x011c5f22), X(0x01283232), X(0x0134428c), X(0x01409027), + X(0x014d1afb), X(0x0159e302), X(0x0166e831), X(0x01742a82), + X(0x0181a9ec), X(0x018f6665), X(0x019d5fe5), X(0x01ab9663), + X(0x01ba09d6), X(0x01c8ba34), X(0x01d7a775), X(0x01e6d18d), + X(0x01f63873), X(0x0205dc1e), X(0x0215bc82), X(0x0225d997), + X(0x02363350), X(0x0246c9a3), X(0x02579c86), X(0x0268abed), + X(0x0279f7cc), X(0x028b801a), X(0x029d44c9), X(0x02af45ce), + X(0x02c1831d), X(0x02d3fcaa), X(0x02e6b269), X(0x02f9a44c), + X(0x030cd248), X(0x03203c4f), X(0x0333e255), X(0x0347c44b), + X(0x035be225), X(0x03703bd5), X(0x0384d14d), X(0x0399a280), + X(0x03aeaf5e), X(0x03c3f7d9), X(0x03d97be4), X(0x03ef3b6e), + X(0x0405366a), X(0x041b6cc8), X(0x0431de78), X(0x04488b6c), + X(0x045f7393), X(0x047696dd), X(0x048df53b), X(0x04a58e9b), + X(0x04bd62ee), X(0x04d57223), X(0x04edbc28), X(0x050640ed), + X(0x051f0060), X(0x0537fa70), X(0x05512f0a), X(0x056a9e1e), + X(0x05844798), X(0x059e2b67), X(0x05b84978), X(0x05d2a1b8), + X(0x05ed3414), X(0x06080079), X(0x062306d3), X(0x063e470f), + X(0x0659c119), X(0x067574dd), X(0x06916247), X(0x06ad8941), + X(0x06c9e9b8), X(0x06e68397), X(0x070356c8), X(0x07206336), + X(0x073da8cb), X(0x075b2772), X(0x0778df15), X(0x0796cf9c), + X(0x07b4f8f3), X(0x07d35b01), X(0x07f1f5b1), X(0x0810c8eb), + X(0x082fd497), X(0x084f189e), X(0x086e94e9), X(0x088e495e), + X(0x08ae35e6), X(0x08ce5a68), X(0x08eeb6cc), X(0x090f4af8), + X(0x093016d3), X(0x09511a44), X(0x09725530), X(0x0993c77f), + X(0x09b57115), X(0x09d751d8), X(0x09f969ae), X(0x0a1bb87c), + X(0x0a3e3e26), X(0x0a60fa91), X(0x0a83eda2), X(0x0aa7173c), + X(0x0aca7743), X(0x0aee0d9b), X(0x0b11da28), X(0x0b35dccc), + X(0x0b5a156a), X(0x0b7e83e5), X(0x0ba3281f), X(0x0bc801fa), + X(0x0bed1159), X(0x0c12561c), X(0x0c37d025), X(0x0c5d7f55), + X(0x0c83638d), X(0x0ca97cae), X(0x0ccfca97), X(0x0cf64d2a), + X(0x0d1d0444), X(0x0d43efc7), X(0x0d6b0f92), X(0x0d926383), + X(0x0db9eb79), X(0x0de1a752), X(0x0e0996ee), X(0x0e31ba29), + X(0x0e5a10e2), X(0x0e829af6), X(0x0eab5841), X(0x0ed448a2), + X(0x0efd6bf4), 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X(0x7ff92a21), X(0x7ff985d1), X(0x7ff9dddf), + X(0x7ffa3262), X(0x7ffa8374), X(0x7ffad12c), X(0x7ffb1ba1), + X(0x7ffb62ec), X(0x7ffba723), X(0x7ffbe85c), X(0x7ffc26b0), + X(0x7ffc6233), X(0x7ffc9afb), X(0x7ffcd11e), X(0x7ffd04b1), + X(0x7ffd35c9), X(0x7ffd647b), X(0x7ffd90da), X(0x7ffdbafa), + X(0x7ffde2f0), X(0x7ffe08ce), X(0x7ffe2ca7), X(0x7ffe4e8e), + X(0x7ffe6e95), X(0x7ffe8cce), X(0x7ffea94a), X(0x7ffec41b), + X(0x7ffedd52), X(0x7ffef4ff), X(0x7fff0b33), X(0x7fff1ffd), + X(0x7fff336e), X(0x7fff4593), X(0x7fff567d), X(0x7fff663a), + X(0x7fff74d8), X(0x7fff8265), X(0x7fff8eee), X(0x7fff9a81), + X(0x7fffa52b), X(0x7fffaef8), X(0x7fffb7f5), X(0x7fffc02d), + X(0x7fffc7ab), X(0x7fffce7c), X(0x7fffd4a9), X(0x7fffda3e), + X(0x7fffdf44), X(0x7fffe3c6), X(0x7fffe7cc), X(0x7fffeb60), + X(0x7fffee8a), X(0x7ffff153), X(0x7ffff3c4), X(0x7ffff5e3), + X(0x7ffff7b8), X(0x7ffff94b), X(0x7ffffaa1), X(0x7ffffbc1), + X(0x7ffffcb2), X(0x7ffffd78), X(0x7ffffe19), X(0x7ffffe9a), + X(0x7ffffeff), X(0x7fffff4e), X(0x7fffff89), X(0x7fffffb3), + X(0x7fffffd2), X(0x7fffffe6), X(0x7ffffff3), X(0x7ffffffa), + X(0x7ffffffe), X(0x7fffffff), X(0x7fffffff), X(0x7fffffff), +}; + +static const LOOKUP_T vwin4096[2048] = { + X(0x000001f0), X(0x00001171), X(0x00003072), X(0x00005ef5), + X(0x00009cf8), X(0x0000ea7c), X(0x00014780), X(0x0001b405), + X(0x0002300b), X(0x0002bb91), X(0x00035698), X(0x0004011e), + X(0x0004bb25), X(0x000584ac), X(0x00065db3), X(0x0007463a), + X(0x00083e41), X(0x000945c7), X(0x000a5ccc), X(0x000b8350), + X(0x000cb954), X(0x000dfed7), X(0x000f53d8), X(0x0010b857), + X(0x00122c55), X(0x0013afd1), X(0x001542ca), X(0x0016e541), + X(0x00189735), X(0x001a58a7), X(0x001c2995), X(0x001e09ff), + X(0x001ff9e6), X(0x0021f948), X(0x00240826), X(0x00262680), + X(0x00285454), X(0x002a91a3), X(0x002cde6c), X(0x002f3aaf), + X(0x0031a66b), X(0x003421a0), X(0x0036ac4f), X(0x00394675), + X(0x003bf014), X(0x003ea92a), X(0x004171b7), X(0x004449bb), + X(0x00473135), X(0x004a2824), X(0x004d2e8a), X(0x00504463), + X(0x005369b2), X(0x00569e74), X(0x0059e2aa), X(0x005d3652), + X(0x0060996d), X(0x00640bf9), X(0x00678df7), X(0x006b1f66), + X(0x006ec045), X(0x00727093), X(0x00763051), X(0x0079ff7d), + X(0x007dde16), X(0x0081cc1d), X(0x0085c991), X(0x0089d671), + X(0x008df2bc), X(0x00921e71), X(0x00965991), X(0x009aa41a), + X(0x009efe0c), X(0x00a36766), X(0x00a7e028), X(0x00ac6850), + X(0x00b0ffde), X(0x00b5a6d1), X(0x00ba5d28), X(0x00bf22e4), + X(0x00c3f802), X(0x00c8dc83), X(0x00cdd065), X(0x00d2d3a8), + X(0x00d7e64a), X(0x00dd084c), X(0x00e239ac), X(0x00e77a69), + X(0x00ecca83), X(0x00f229f9), X(0x00f798ca), X(0x00fd16f5), + X(0x0102a479), X(0x01084155), X(0x010ded89), X(0x0113a913), + X(0x011973f3), X(0x011f4e27), X(0x012537af), X(0x012b308a), + X(0x013138b7), X(0x01375035), X(0x013d7702), X(0x0143ad1f), + X(0x0149f289), X(0x01504741), X(0x0156ab44), X(0x015d1e92), + X(0x0163a12a), X(0x016a330b), X(0x0170d433), X(0x017784a3), + X(0x017e4458), X(0x01851351), X(0x018bf18e), X(0x0192df0d), + X(0x0199dbcd), X(0x01a0e7cd), X(0x01a8030c), X(0x01af2d89), + X(0x01b66743), X(0x01bdb038), X(0x01c50867), X(0x01cc6fd0), + X(0x01d3e670), X(0x01db6c47), X(0x01e30153), X(0x01eaa593), + X(0x01f25907), X(0x01fa1bac), X(0x0201ed81), X(0x0209ce86), + X(0x0211beb8), X(0x0219be17), X(0x0221cca2), X(0x0229ea56), + X(0x02321733), X(0x023a5337), X(0x02429e60), X(0x024af8af), + X(0x02536220), X(0x025bdab3), X(0x02646267), X(0x026cf93a), + X(0x02759f2a), X(0x027e5436), X(0x0287185d), X(0x028feb9d), + X(0x0298cdf4), X(0x02a1bf62), X(0x02aabfe5), X(0x02b3cf7b), + X(0x02bcee23), X(0x02c61bdb), X(0x02cf58a2), X(0x02d8a475), + X(0x02e1ff55), X(0x02eb693e), X(0x02f4e230), X(0x02fe6a29), + X(0x03080127), X(0x0311a729), X(0x031b5c2d), X(0x03252031), + X(0x032ef334), X(0x0338d534), X(0x0342c630), X(0x034cc625), + X(0x0356d512), X(0x0360f2f6), X(0x036b1fce), X(0x03755b99), + X(0x037fa655), X(0x038a0001), X(0x0394689a), X(0x039ee020), + X(0x03a9668f), X(0x03b3fbe6), X(0x03bea024), X(0x03c95347), + X(0x03d4154d), X(0x03dee633), X(0x03e9c5f9), X(0x03f4b49b), + X(0x03ffb219), X(0x040abe71), X(0x0415d9a0), X(0x042103a5), + X(0x042c3c7d), X(0x04378428), X(0x0442daa2), X(0x044e3fea), + X(0x0459b3fd), X(0x046536db), X(0x0470c880), X(0x047c68eb), + X(0x0488181a), X(0x0493d60b), X(0x049fa2bc), X(0x04ab7e2a), + X(0x04b76854), X(0x04c36137), X(0x04cf68d1), X(0x04db7f21), + X(0x04e7a424), X(0x04f3d7d8), X(0x05001a3b), X(0x050c6b4a), + X(0x0518cb04), X(0x05253966), X(0x0531b66e), X(0x053e421a), + X(0x054adc68), X(0x05578555), X(0x05643cdf), X(0x05710304), + X(0x057dd7c1), X(0x058abb15), X(0x0597acfd), X(0x05a4ad76), + X(0x05b1bc7f), X(0x05beda14), X(0x05cc0635), X(0x05d940dd), + X(0x05e68a0b), X(0x05f3e1bd), X(0x060147f0), X(0x060ebca1), + X(0x061c3fcf), X(0x0629d176), X(0x06377194), X(0x06452027), + X(0x0652dd2c), X(0x0660a8a2), X(0x066e8284), X(0x067c6ad1), + X(0x068a6186), X(0x069866a1), X(0x06a67a1e), X(0x06b49bfc), + X(0x06c2cc38), X(0x06d10acf), X(0x06df57bf), X(0x06edb304), + X(0x06fc1c9d), X(0x070a9487), X(0x07191abe), X(0x0727af40), + X(0x0736520b), X(0x0745031c), X(0x0753c270), X(0x07629004), + X(0x07716bd6), X(0x078055e2), X(0x078f4e26), X(0x079e549f), + X(0x07ad694b), X(0x07bc8c26), X(0x07cbbd2e), X(0x07dafc5f), + X(0x07ea49b7), X(0x07f9a533), X(0x08090ed1), X(0x0818868c), + X(0x08280c62), X(0x0837a051), X(0x08474255), X(0x0856f26b), + X(0x0866b091), X(0x08767cc3), X(0x088656fe), X(0x08963f3f), + X(0x08a63584), X(0x08b639c8), X(0x08c64c0a), X(0x08d66c45), + X(0x08e69a77), X(0x08f6d69d), X(0x090720b3), X(0x091778b7), + X(0x0927dea5), X(0x0938527a), X(0x0948d433), X(0x095963cc), + X(0x096a0143), X(0x097aac94), X(0x098b65bb), X(0x099c2cb6), + X(0x09ad0182), X(0x09bde41a), X(0x09ced47d), X(0x09dfd2a5), + X(0x09f0de90), X(0x0a01f83b), X(0x0a131fa3), X(0x0a2454c3), + X(0x0a359798), X(0x0a46e820), X(0x0a584656), X(0x0a69b237), + X(0x0a7b2bc0), X(0x0a8cb2ec), X(0x0a9e47ba), X(0x0aafea24), + X(0x0ac19a29), X(0x0ad357c3), X(0x0ae522ef), X(0x0af6fbab), + X(0x0b08e1f1), X(0x0b1ad5c0), X(0x0b2cd712), X(0x0b3ee5e5), + X(0x0b510234), X(0x0b632bfd), X(0x0b75633b), X(0x0b87a7eb), + X(0x0b99fa08), X(0x0bac5990), X(0x0bbec67e), X(0x0bd140cf), + X(0x0be3c87e), X(0x0bf65d89), X(0x0c08ffeb), X(0x0c1bafa1), + X(0x0c2e6ca6), X(0x0c4136f6), X(0x0c540e8f), X(0x0c66f36c), + X(0x0c79e588), X(0x0c8ce4e1), X(0x0c9ff172), X(0x0cb30b37), + X(0x0cc6322c), X(0x0cd9664d), X(0x0ceca797), X(0x0cfff605), + X(0x0d135193), X(0x0d26ba3d), X(0x0d3a2fff), X(0x0d4db2d5), + X(0x0d6142ba), X(0x0d74dfac), X(0x0d8889a5), X(0x0d9c40a1), + X(0x0db0049d), X(0x0dc3d593), X(0x0dd7b380), X(0x0deb9e60), + X(0x0dff962f), X(0x0e139ae7), X(0x0e27ac85), X(0x0e3bcb05), + X(0x0e4ff662), X(0x0e642e98), X(0x0e7873a2), X(0x0e8cc57d), + X(0x0ea12423), X(0x0eb58f91), X(0x0eca07c2), X(0x0ede8cb1), + X(0x0ef31e5b), X(0x0f07bcba), X(0x0f1c67cb), X(0x0f311f88), + X(0x0f45e3ee), X(0x0f5ab4f7), X(0x0f6f92a0), X(0x0f847ce3), + X(0x0f9973bc), X(0x0fae7726), X(0x0fc3871e), X(0x0fd8a39d), + X(0x0fedcca1), X(0x10030223), X(0x1018441f), X(0x102d9291), + X(0x1042ed74), X(0x105854c3), X(0x106dc879), X(0x10834892), + X(0x1098d508), X(0x10ae6dd8), X(0x10c412fc), X(0x10d9c46f), + X(0x10ef822d), X(0x11054c30), X(0x111b2274), X(0x113104f5), + X(0x1146f3ac), X(0x115cee95), X(0x1172f5ab), X(0x118908e9), + X(0x119f284a), X(0x11b553ca), X(0x11cb8b62), X(0x11e1cf0f), + X(0x11f81ecb), X(0x120e7a90), X(0x1224e25a), X(0x123b5624), + X(0x1251d5e9), X(0x126861a3), X(0x127ef94e), X(0x12959ce3), + X(0x12ac4c5f), X(0x12c307bb), X(0x12d9cef2), X(0x12f0a200), + X(0x130780df), X(0x131e6b8a), X(0x133561fa), X(0x134c642c), + X(0x1363721a), X(0x137a8bbe), X(0x1391b113), X(0x13a8e214), + X(0x13c01eba), X(0x13d76702), X(0x13eebae5), X(0x14061a5e), + X(0x141d8567), X(0x1434fbfb), X(0x144c7e14), X(0x14640bae), + X(0x147ba4c1), X(0x14934949), X(0x14aaf941), X(0x14c2b4a2), + X(0x14da7b67), X(0x14f24d8a), X(0x150a2b06), X(0x152213d5), + X(0x153a07f1), X(0x15520755), 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X(0x7fe776a4), X(0x7fe7ef02), + X(0x7fe865a7), X(0x7fe8da97), X(0x7fe94dd6), X(0x7fe9bf68), + X(0x7fea2f51), X(0x7fea9d95), X(0x7feb0a39), X(0x7feb7540), + X(0x7febdeae), X(0x7fec4687), X(0x7fecaccf), X(0x7fed118b), + X(0x7fed74be), X(0x7fedd66c), X(0x7fee3698), X(0x7fee9548), + X(0x7feef27e), X(0x7fef4e3f), X(0x7fefa88e), X(0x7ff0016f), + X(0x7ff058e7), X(0x7ff0aef8), X(0x7ff103a6), X(0x7ff156f6), + X(0x7ff1a8eb), X(0x7ff1f988), X(0x7ff248d2), X(0x7ff296cc), + X(0x7ff2e37a), X(0x7ff32edf), X(0x7ff378ff), X(0x7ff3c1de), + X(0x7ff4097e), X(0x7ff44fe5), X(0x7ff49515), X(0x7ff4d911), + X(0x7ff51bde), X(0x7ff55d7f), X(0x7ff59df7), X(0x7ff5dd4a), + X(0x7ff61b7b), X(0x7ff6588d), X(0x7ff69485), X(0x7ff6cf65), + X(0x7ff70930), X(0x7ff741eb), X(0x7ff77998), X(0x7ff7b03b), + X(0x7ff7e5d7), X(0x7ff81a6f), X(0x7ff84e06), X(0x7ff880a1), + X(0x7ff8b241), X(0x7ff8e2ea), X(0x7ff912a0), X(0x7ff94165), + X(0x7ff96f3d), X(0x7ff99c2b), X(0x7ff9c831), X(0x7ff9f354), + X(0x7ffa1d95), X(0x7ffa46f9), X(0x7ffa6f81), X(0x7ffa9731), + X(0x7ffabe0d), X(0x7ffae416), X(0x7ffb0951), X(0x7ffb2dbf), + X(0x7ffb5164), X(0x7ffb7442), X(0x7ffb965d), X(0x7ffbb7b8), + X(0x7ffbd854), X(0x7ffbf836), X(0x7ffc175f), X(0x7ffc35d3), + X(0x7ffc5394), X(0x7ffc70a5), X(0x7ffc8d09), X(0x7ffca8c2), + X(0x7ffcc3d4), X(0x7ffcde3f), X(0x7ffcf809), X(0x7ffd1132), + X(0x7ffd29be), X(0x7ffd41ae), X(0x7ffd5907), X(0x7ffd6fc9), + X(0x7ffd85f9), X(0x7ffd9b97), X(0x7ffdb0a7), X(0x7ffdc52b), + X(0x7ffdd926), X(0x7ffdec99), X(0x7ffdff88), X(0x7ffe11f4), + X(0x7ffe23e0), X(0x7ffe354f), X(0x7ffe4642), X(0x7ffe56bc), + X(0x7ffe66bf), X(0x7ffe764e), X(0x7ffe856a), X(0x7ffe9416), + X(0x7ffea254), X(0x7ffeb026), X(0x7ffebd8e), X(0x7ffeca8f), + X(0x7ffed72a), X(0x7ffee362), X(0x7ffeef38), X(0x7ffefaaf), + X(0x7fff05c9), X(0x7fff1087), X(0x7fff1aec), X(0x7fff24f9), + X(0x7fff2eb1), X(0x7fff3816), X(0x7fff4128), X(0x7fff49eb), + X(0x7fff5260), X(0x7fff5a88), X(0x7fff6266), X(0x7fff69fc), + X(0x7fff714b), X(0x7fff7854), X(0x7fff7f1a), X(0x7fff859f), + X(0x7fff8be3), X(0x7fff91ea), X(0x7fff97b3), X(0x7fff9d41), + X(0x7fffa296), X(0x7fffa7b3), X(0x7fffac99), X(0x7fffb14b), + X(0x7fffb5c9), X(0x7fffba15), X(0x7fffbe31), X(0x7fffc21d), + X(0x7fffc5dc), X(0x7fffc96f), X(0x7fffccd8), X(0x7fffd016), + X(0x7fffd32d), X(0x7fffd61c), X(0x7fffd8e7), X(0x7fffdb8d), + X(0x7fffde0f), X(0x7fffe071), X(0x7fffe2b1), X(0x7fffe4d2), + X(0x7fffe6d5), X(0x7fffe8bb), X(0x7fffea85), X(0x7fffec34), + X(0x7fffedc9), X(0x7fffef45), X(0x7ffff0aa), X(0x7ffff1f7), + X(0x7ffff330), X(0x7ffff453), X(0x7ffff562), X(0x7ffff65f), + X(0x7ffff749), X(0x7ffff823), X(0x7ffff8ec), X(0x7ffff9a6), + X(0x7ffffa51), X(0x7ffffaee), X(0x7ffffb7e), X(0x7ffffc02), + X(0x7ffffc7a), X(0x7ffffce7), X(0x7ffffd4a), X(0x7ffffda3), + X(0x7ffffdf4), X(0x7ffffe3c), X(0x7ffffe7c), X(0x7ffffeb6), + X(0x7ffffee8), X(0x7fffff15), X(0x7fffff3c), X(0x7fffff5e), + X(0x7fffff7b), X(0x7fffff95), X(0x7fffffaa), X(0x7fffffbc), + X(0x7fffffcb), X(0x7fffffd7), X(0x7fffffe2), X(0x7fffffea), + X(0x7ffffff0), X(0x7ffffff5), X(0x7ffffff9), X(0x7ffffffb), + X(0x7ffffffd), X(0x7ffffffe), X(0x7fffffff), X(0x7fffffff), + X(0x7fffffff), X(0x7fffffff), X(0x7fffffff), X(0x7fffffff), +}; + +static const LOOKUP_T vwin8192[4096] = { + X(0x0000007c), X(0x0000045c), X(0x00000c1d), X(0x000017bd), + X(0x0000273e), X(0x00003a9f), X(0x000051e0), X(0x00006d02), + X(0x00008c03), X(0x0000aee5), X(0x0000d5a7), X(0x00010049), + X(0x00012ecb), X(0x0001612d), X(0x00019770), X(0x0001d193), + X(0x00020f96), X(0x00025178), X(0x0002973c), X(0x0002e0df), + X(0x00032e62), X(0x00037fc5), X(0x0003d509), X(0x00042e2c), + X(0x00048b30), X(0x0004ec13), X(0x000550d7), X(0x0005b97a), + X(0x000625fe), X(0x00069661), X(0x00070aa4), X(0x000782c8), + X(0x0007fecb), X(0x00087eae), X(0x00090271), X(0x00098a14), + X(0x000a1597), X(0x000aa4f9), X(0x000b383b), X(0x000bcf5d), + X(0x000c6a5f), X(0x000d0941), X(0x000dac02), X(0x000e52a3), + X(0x000efd23), X(0x000fab84), X(0x00105dc3), X(0x001113e3), + X(0x0011cde2), X(0x00128bc0), X(0x00134d7e), X(0x0014131b), + X(0x0014dc98), X(0x0015a9f4), X(0x00167b30), X(0x0017504a), + X(0x00182945), X(0x0019061e), X(0x0019e6d7), X(0x001acb6f), + X(0x001bb3e6), X(0x001ca03c), X(0x001d9071), X(0x001e8485), + X(0x001f7c79), X(0x0020784b), X(0x002177fc), X(0x00227b8c), + X(0x002382fb), X(0x00248e49), X(0x00259d76), X(0x0026b081), + X(0x0027c76b), X(0x0028e234), X(0x002a00dc), X(0x002b2361), + X(0x002c49c6), X(0x002d7409), X(0x002ea22a), X(0x002fd42a), + X(0x00310a08), X(0x003243c5), X(0x00338160), X(0x0034c2d9), + X(0x00360830), X(0x00375165), X(0x00389e78), X(0x0039ef6a), + X(0x003b4439), X(0x003c9ce6), X(0x003df971), X(0x003f59da), + X(0x0040be20), X(0x00422645), X(0x00439247), X(0x00450226), + X(0x004675e3), X(0x0047ed7e), X(0x004968f5), X(0x004ae84b), + X(0x004c6b7d), X(0x004df28d), X(0x004f7d7a), X(0x00510c44), + X(0x00529eeb), X(0x00543570), X(0x0055cfd1), X(0x00576e0f), + X(0x00591029), X(0x005ab621), X(0x005c5ff5), X(0x005e0da6), + X(0x005fbf33), X(0x0061749d), X(0x00632de4), X(0x0064eb06), + X(0x0066ac05), X(0x006870e0), X(0x006a3998), X(0x006c062b), + X(0x006dd69b), X(0x006faae6), X(0x0071830d), X(0x00735f10), + X(0x00753eef), X(0x007722a9), X(0x00790a3f), X(0x007af5b1), + X(0x007ce4fe), X(0x007ed826), X(0x0080cf29), X(0x0082ca08), + X(0x0084c8c2), X(0x0086cb57), X(0x0088d1c7), X(0x008adc11), + X(0x008cea37), X(0x008efc37), X(0x00911212), X(0x00932bc7), + X(0x00954957), X(0x00976ac2), X(0x00999006), X(0x009bb925), + X(0x009de61e), X(0x00a016f1), X(0x00a24b9e), X(0x00a48425), + X(0x00a6c086), X(0x00a900c0), X(0x00ab44d4), X(0x00ad8cc2), + X(0x00afd889), X(0x00b22829), X(0x00b47ba2), X(0x00b6d2f5), + X(0x00b92e21), X(0x00bb8d26), X(0x00bdf004), X(0x00c056ba), + X(0x00c2c149), X(0x00c52fb1), X(0x00c7a1f1), X(0x00ca180a), + X(0x00cc91fb), X(0x00cf0fc5), X(0x00d19166), X(0x00d416df), + X(0x00d6a031), X(0x00d92d5a), X(0x00dbbe5b), X(0x00de5333), + X(0x00e0ebe3), X(0x00e3886b), X(0x00e628c9), X(0x00e8ccff), + X(0x00eb750c), X(0x00ee20f0), X(0x00f0d0ab), X(0x00f3843d), + X(0x00f63ba5), X(0x00f8f6e4), X(0x00fbb5fa), X(0x00fe78e5), + X(0x01013fa7), X(0x01040a3f), X(0x0106d8ae), X(0x0109aaf2), + X(0x010c810c), X(0x010f5afb), X(0x011238c0), X(0x01151a5b), + X(0x0117ffcb), X(0x011ae910), X(0x011dd62a), X(0x0120c719), + X(0x0123bbdd), X(0x0126b476), X(0x0129b0e4), X(0x012cb126), + X(0x012fb53c), X(0x0132bd27), X(0x0135c8e6), X(0x0138d879), + X(0x013bebdf), X(0x013f031a), X(0x01421e28), X(0x01453d0a), + X(0x01485fbf), X(0x014b8648), X(0x014eb0a4), X(0x0151ded2), + X(0x015510d4), X(0x015846a8), X(0x015b8050), X(0x015ebdc9), + X(0x0161ff15), X(0x01654434), X(0x01688d24), X(0x016bd9e6), + X(0x016f2a7b), X(0x01727ee1), X(0x0175d718), X(0x01793321), + X(0x017c92fc), X(0x017ff6a7), X(0x01835e24), X(0x0186c972), + X(0x018a3890), X(0x018dab7f), X(0x0191223f), X(0x01949ccf), + X(0x01981b2f), X(0x019b9d5f), X(0x019f235f), X(0x01a2ad2f), + X(0x01a63acf), X(0x01a9cc3e), X(0x01ad617c), X(0x01b0fa8a), + X(0x01b49767), X(0x01b83813), X(0x01bbdc8d), X(0x01bf84d6), + X(0x01c330ee), X(0x01c6e0d4), X(0x01ca9488), X(0x01ce4c0b), + X(0x01d2075b), X(0x01d5c679), X(0x01d98964), X(0x01dd501d), + X(0x01e11aa3), X(0x01e4e8f6), X(0x01e8bb17), X(0x01ec9104), + X(0x01f06abd), X(0x01f44844), X(0x01f82996), X(0x01fc0eb5), + X(0x01fff7a0), X(0x0203e456), X(0x0207d4d9), X(0x020bc926), + X(0x020fc140), X(0x0213bd24), X(0x0217bcd4), X(0x021bc04e), + X(0x021fc793), X(0x0223d2a3), X(0x0227e17d), X(0x022bf421), + X(0x02300a90), X(0x023424c8), X(0x023842ca), X(0x023c6495), + X(0x02408a2a), X(0x0244b389), X(0x0248e0b0), X(0x024d11a0), + X(0x02514659), X(0x02557eda), X(0x0259bb24), X(0x025dfb35), + X(0x02623f0f), X(0x026686b1), X(0x026ad21a), X(0x026f214b), + X(0x02737443), X(0x0277cb02), X(0x027c2588), X(0x028083d5), + X(0x0284e5e9), X(0x02894bc2), X(0x028db562), X(0x029222c8), + X(0x029693f4), X(0x029b08e6), X(0x029f819d), X(0x02a3fe19), + X(0x02a87e5b), X(0x02ad0261), X(0x02b18a2c), 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