tremor: drop internal tremor library

Drop internal copy of the tremor library. Note that the internal ogg
demuxer (which is still sometimes useful to work around libavformat
ogg demuxer problems, though it's itself quite buggy) now cannot be
compiled without either external libvorbis or libvorbisidec (tremor).

33 files changed, 0 insertions, 9714 deletions

diff --git a/tremor/COPYING b/tremor/COPYING
deleted file mode 100644
index 6111c6c5a6..0000000000
--- a/tremor/COPYING
+++ /dev/null
@@ -1,28 +0,0 @@
-Copyright (c) 2002, Xiph.org Foundation
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-- Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-- Neither the name of the Xiph.org Foundation nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION
-OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/tremor/FILES b/tremor/FILES
deleted file mode 100644
index 9733e7a5a2..0000000000
--- a/tremor/FILES
+++ /dev/null
@@ -1,49 +0,0 @@
-On the origin of the files:
-==========================
-
-The code is a mixture of Tremor SVN Trunk r3989 (API, parser, part of math
-code) and December 2004 Trunk fetched from xiph.org's Subversion
-(mostly math).
-
-SVN Trunk r3989:
------------
-backends.h
-block.c
-codebook.c
-codebook.h
-codec_internal.h
-config_types.h
-info.c
-ivorbiscodec.h
-lsp_lookup.h
-mapping0.c
-os.h
-registry.c
-registry.h
-res012.c
-sharedbook.c
-synthesis.c
-
-Dec 2004 SVN Trunk:
-------------------
-asm_arm.h
-COPYING
-floor0.c
-floor1.c
-mdct.c
-mdct.h
-mdct_lookup.h
-misc.h
-os_types.h
-window.c
-window.h
-window_lookup.h
-
-libogg 1.1.2:
-------------
-bitwise.c
-framing.c
-ogg.h
-
-Additional MPlayer-specific changes are contained in tremor.diff.
-This file should be updated with each modification of the Tremor code.
diff --git a/tremor/asm_arm.h b/tremor/asm_arm.h
deleted file mode 100644
index f4b1f4f8cf..0000000000
--- a/tremor/asm_arm.h
+++ /dev/null
@@ -1,243 +0,0 @@
-/********************************************************************
- *                                                                  *
- * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
- *                                                                  *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
- *                                                                  *
- * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
- * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
- *                                                                  *
- ********************************************************************
-
- function: 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;"
-      "mov     r1,%5,asr#1;"
-      "add     r0,r0,r1,lsl#3;"
-      "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"
-
-      // odd filter assymetry
-      "ands    r0,%5,#1;\n"
-      "beq     2f;\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     2f;\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 */
-      "2:"
-      "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/tremor/backends.h b/tremor/backends.h
deleted file mode 100644
index 269d9b812e..0000000000
--- a/tremor/backends.h
+++ /dev/null
@@ -1,130 +0,0 @@
-/********************************************************************
- *                                                                  *
- * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
- *                                                                  *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
- *                                                                  *
- * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
- * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
- *                                                                  *
- ********************************************************************
-
- function: 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    groupbook;        /* huffbook for partitioning */
-  int    secondstages[64]; /* expanded out to pointers in lookup */
-  int    booklist[256];    /* 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/tremor/bitwise.c b/tremor/bitwise.c
deleted file mode 100644
index 6bd082b6dc..0000000000
--- a/tremor/bitwise.c
+++ /dev/null
@@ -1,450 +0,0 @@
-/********************************************************************
- *                                                                  *
- * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
- *                                                                  *
- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002             *
- * by the Xiph.Org Foundation http://www.xiph.org/                  *
- *                                                                  *
- ********************************************************************
-
-  function: packing variable sized words into an octet stream
-  last mod: $Id$
-
- ********************************************************************/
-
-/* We're 'LSb' endian; if we write a word but read individual bits,
-   then we'll read the lsb first */
-
-#include <string.h>
-#include <stdlib.h>
-#include "ogg.h"
-
-#define BUFFER_INCREMENT 256
-
-static const unsigned long mask[]=
-{0x00000000,0x00000001,0x00000003,0x00000007,0x0000000f,
- 0x0000001f,0x0000003f,0x0000007f,0x000000ff,0x000001ff,
- 0x000003ff,0x000007ff,0x00000fff,0x00001fff,0x00003fff,
- 0x00007fff,0x0000ffff,0x0001ffff,0x0003ffff,0x0007ffff,
- 0x000fffff,0x001fffff,0x003fffff,0x007fffff,0x00ffffff,
- 0x01ffffff,0x03ffffff,0x07ffffff,0x0fffffff,0x1fffffff,
- 0x3fffffff,0x7fffffff,0xffffffff };
-
-static const unsigned int mask8B[]=
-{0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff};
-
-void oggpack_writeinit(oggpack_buffer *b){
-  memset(b,0,sizeof(*b));
-  b->ptr=b->buffer=_ogg_malloc(BUFFER_INCREMENT);
-  b->buffer[0]='\0';
-  b->storage=BUFFER_INCREMENT;
-}
-
-void oggpackB_writeinit(oggpack_buffer *b){
-  oggpack_writeinit(b);
-}
-
-void oggpack_writetrunc(oggpack_buffer *b,long bits){
-  long bytes=bits>>3;
-  bits-=bytes*8;
-  b->ptr=b->buffer+bytes;
-  b->endbit=bits;
-  b->endbyte=bytes;
-  *b->ptr&=mask[bits];
-}
-
-void oggpackB_writetrunc(oggpack_buffer *b,long bits){
-  long bytes=bits>>3;
-  bits-=bytes*8;
-  b->ptr=b->buffer+bytes;
-  b->endbit=bits;
-  b->endbyte=bytes;
-  *b->ptr&=mask8B[bits];
-}
-
-/* Takes only up to 32 bits. */
-void oggpack_write(oggpack_buffer *b,unsigned long value,int bits){
-  if(b->endbyte+4>=b->storage){
-    b->buffer=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT);
-    b->storage+=BUFFER_INCREMENT;
-    b->ptr=b->buffer+b->endbyte;
-  }
-
-  value&=mask[bits];
-  bits+=b->endbit;
-
-  b->ptr[0]|=value<<b->endbit;
-
-  if(bits>=8){
-    b->ptr[1]=(unsigned char)(value>>(8-b->endbit));
-    if(bits>=16){
-      b->ptr[2]=(unsigned char)(value>>(16-b->endbit));
-      if(bits>=24){
-	b->ptr[3]=(unsigned char)(value>>(24-b->endbit));
-	if(bits>=32){
-	  if(b->endbit)
-	    b->ptr[4]=(unsigned char)(value>>(32-b->endbit));
-	  else
-	    b->ptr[4]=0;
-	}
-      }
-    }
-  }
-
-  b->endbyte+=bits/8;
-  b->ptr+=bits/8;
-  b->endbit=bits&7;
-}
-
-/* Takes only up to 32 bits. */
-void oggpackB_write(oggpack_buffer *b,unsigned long value,int bits){
-  if(b->endbyte+4>=b->storage){
-    b->buffer=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT);
-    b->storage+=BUFFER_INCREMENT;
-    b->ptr=b->buffer+b->endbyte;
-  }
-
-  value=(value&mask[bits])<<(32-bits);
-  bits+=b->endbit;
-
-  b->ptr[0]|=value>>(24+b->endbit);
-
-  if(bits>=8){
-    b->ptr[1]=(unsigned char)(value>>(16+b->endbit));
-    if(bits>=16){
-      b->ptr[2]=(unsigned char)(value>>(8+b->endbit));
-      if(bits>=24){
-	b->ptr[3]=(unsigned char)(value>>(b->endbit));
-	if(bits>=32){
-	  if(b->endbit)
-	    b->ptr[4]=(unsigned char)(value<<(8-b->endbit));
-	  else
-	    b->ptr[4]=0;
-	}
-      }
-    }
-  }
-
-  b->endbyte+=bits/8;
-  b->ptr+=bits/8;
-  b->endbit=bits&7;
-}
-
-void oggpack_writealign(oggpack_buffer *b){
-  int bits=8-b->endbit;
-  if(bits<8)
-    oggpack_write(b,0,bits);
-}
-
-void oggpackB_writealign(oggpack_buffer *b){
-  int bits=8-b->endbit;
-  if(bits<8)
-    oggpackB_write(b,0,bits);
-}
-
-static void oggpack_writecopy_helper(oggpack_buffer *b,
-				     void *source,
-				     long bits,
-				     void (*w)(oggpack_buffer *,
-					       unsigned long,
-					       int),
-				     int msb){
-  unsigned char *ptr=(unsigned char *)source;
-
-  long bytes=bits/8;
-  bits-=bytes*8;
-
-  if(b->endbit){
-    int i;
-    /* unaligned copy.  Do it the hard way. */
-    for(i=0;i<bytes;i++)
-      w(b,(unsigned long)(ptr[i]),8);
-  }else{
-    /* aligned block copy */
-    if(b->endbyte+bytes+1>=b->storage){
-      b->storage=b->endbyte+bytes+BUFFER_INCREMENT;
-      b->buffer=_ogg_realloc(b->buffer,b->storage);
-      b->ptr=b->buffer+b->endbyte;
-    }
-
-    memmove(b->ptr,source,bytes);
-    b->ptr+=bytes;
-    b->endbyte+=bytes;
-    *b->ptr=0;
-
-  }
-  if(bits){
-    if(msb)
-      w(b,(unsigned long)(ptr[bytes]>>(8-bits)),bits);
-    else
-      w(b,(unsigned long)(ptr[bytes]),bits);
-  }
-}
-
-void oggpack_writecopy(oggpack_buffer *b,void *source,long bits){
-  oggpack_writecopy_helper(b,source,bits,oggpack_write,0);
-}
-
-void oggpackB_writecopy(oggpack_buffer *b,void *source,long bits){
-  oggpack_writecopy_helper(b,source,bits,oggpackB_write,1);
-}
-
-void oggpack_reset(oggpack_buffer *b){
-  b->ptr=b->buffer;
-  b->buffer[0]=0;
-  b->endbit=b->endbyte=0;
-}
-
-void oggpackB_reset(oggpack_buffer *b){
-  oggpack_reset(b);
-}
-
-void oggpack_writeclear(oggpack_buffer *b){
-  _ogg_free(b->buffer);
-  memset(b,0,sizeof(*b));
-}
-
-void oggpackB_writeclear(oggpack_buffer *b){
-  oggpack_writeclear(b);
-}
-
-void oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes){
-  memset(b,0,sizeof(*b));
-  b->buffer=b->ptr=buf;
-  b->storage=bytes;
-}
-
-void oggpackB_readinit(oggpack_buffer *b,unsigned char *buf,int bytes){
-  oggpack_readinit(b,buf,bytes);
-}
-
-/* Read in bits without advancing the bitptr; bits <= 32 */
-long oggpack_look(oggpack_buffer *b,int bits){
-  unsigned long ret;
-  unsigned long m=mask[bits];
-
-  bits+=b->endbit;
-
-  if(b->endbyte+4>=b->storage){
-    /* not the main path */
-    if(b->endbyte*8+bits>b->storage*8)return(-1);
-  }
-
-  ret=b->ptr[0]>>b->endbit;
-  if(bits>8){
-    ret|=b->ptr[1]<<(8-b->endbit);
-    if(bits>16){
-      ret|=b->ptr[2]<<(16-b->endbit);
-      if(bits>24){
-	ret|=b->ptr[3]<<(24-b->endbit);
-	if(bits>32 && b->endbit)
-	  ret|=b->ptr[4]<<(32-b->endbit);
-      }
-    }
-  }
-  return(m&ret);
-}
-
-/* Read in bits without advancing the bitptr; bits <= 32 */
-long oggpackB_look(oggpack_buffer *b,int bits){
-  unsigned long ret;
-  int m=32-bits;
-
-  bits+=b->endbit;
-
-  if(b->endbyte+4>=b->storage){
-    /* not the main path */
-    if(b->endbyte*8+bits>b->storage*8)return(-1);
-  }
-
-  ret=b->ptr[0]<<(24+b->endbit);
-  if(bits>8){
-    ret|=b->ptr[1]<<(16+b->endbit);
-    if(bits>16){
-      ret|=b->ptr[2]<<(8+b->endbit);
-      if(bits>24){
-	ret|=b->ptr[3]<<(b->endbit);
-	if(bits>32 && b->endbit)
-	  ret|=b->ptr[4]>>(8-b->endbit);
-      }
-    }
-  }
-  return ((ret&0xffffffff)>>(m>>1))>>((m+1)>>1);
-}
-
-long oggpack_look1(oggpack_buffer *b){
-  if(b->endbyte>=b->storage)return(-1);
-  return((b->ptr[0]>>b->endbit)&1);
-}
-
-long oggpackB_look1(oggpack_buffer *b){
-  if(b->endbyte>=b->storage)return(-1);
-  return((b->ptr[0]>>(7-b->endbit))&1);
-}
-
-void oggpack_adv(oggpack_buffer *b,int bits){
-  bits+=b->endbit;
-  b->ptr+=bits/8;
-  b->endbyte+=bits/8;
-  b->endbit=bits&7;
-}
-
-void oggpackB_adv(oggpack_buffer *b,int bits){
-  oggpack_adv(b,bits);
-}
-
-void oggpack_adv1(oggpack_buffer *b){
-  if(++(b->endbit)>7){
-    b->endbit=0;
-    b->ptr++;
-    b->endbyte++;
-  }
-}
-
-void oggpackB_adv1(oggpack_buffer *b){
-  oggpack_adv1(b);
-}
-
-/* bits <= 32 */
-long oggpack_read(oggpack_buffer *b,int bits){
-  long ret;
-  unsigned long m=mask[bits];
-
-  bits+=b->endbit;
-
-  if(b->endbyte+4>=b->storage){
-    /* not the main path */
-    ret=-1L;
-    if(b->endbyte*8+bits>b->storage*8)goto overflow;
-  }
-
-  ret=b->ptr[0]>>b->endbit;
-  if(bits>8){
-    ret|=b->ptr[1]<<(8-b->endbit);
-    if(bits>16){
-      ret|=b->ptr[2]<<(16-b->endbit);
-      if(bits>24){
-	ret|=b->ptr[3]<<(24-b->endbit);
-	if(bits>32 && b->endbit){
-	  ret|=b->ptr[4]<<(32-b->endbit);
-	}
-      }
-    }
-  }
-  ret&=m;
-
- overflow:
-
-  b->ptr+=bits/8;
-  b->endbyte+=bits/8;
-  b->endbit=bits&7;
-  return(ret);
-}
-
-/* bits <= 32 */
-long oggpackB_read(oggpack_buffer *b,int bits){
-  long ret;
-  long m=32-bits;
-
-  bits+=b->endbit;
-
-  if(b->endbyte+4>=b->storage){
-    /* not the main path */
-    ret=-1L;
-    if(b->endbyte*8+bits>b->storage*8)goto overflow;
-  }
-
-  ret=b->ptr[0]<<(24+b->endbit);
-  if(bits>8){
-    ret|=b->ptr[1]<<(16+b->endbit);
-    if(bits>16){
-      ret|=b->ptr[2]<<(8+b->endbit);
-      if(bits>24){
-	ret|=b->ptr[3]<<(b->endbit);
-	if(bits>32 && b->endbit)
-	  ret|=b->ptr[4]>>(8-b->endbit);
-      }
-    }
-  }
-  ret=((ret&0xffffffffUL)>>(m>>1))>>((m+1)>>1);
-
- overflow:
-
-  b->ptr+=bits/8;
-  b->endbyte+=bits/8;
-  b->endbit=bits&7;
-  return(ret);
-}
-
-long oggpack_read1(oggpa