update to libogg 1.1.2 (needed for Theora)

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15251 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 315 insertions, 9 deletions

diff --git a/tremor/bitwise.c b/tremor/bitwise.c
index 4782ee053b..c53cc78b95 100644
--- a/tremor/bitwise.c
+++ b/tremor/bitwise.c
@@ -1,14 +1,17 @@
 /********************************************************************
  *                                                                  *
- * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
+ * 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 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
- * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
- * ALL REDISTRIBUTION RIGHTS RESERVED.                              *
+ * 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: $Id$
 
  ********************************************************************/
 
@@ -21,7 +24,7 @@
 
 #define BUFFER_INCREMENT 256
 
-static unsigned long mask[]=
+static const unsigned long mask[]=
 {0x00000000,0x00000001,0x00000003,0x00000007,0x0000000f,
  0x0000001f,0x0000003f,0x0000007f,0x000000ff,0x000001ff,
  0x000003ff,0x000007ff,0x00000fff,0x00001fff,0x00003fff,
@@ -30,12 +33,194 @@ static unsigned long mask[]=
  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;
@@ -63,11 +248,43 @@ long oggpack_look(oggpack_buffer *b,int bits){
   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;
@@ -75,6 +292,10 @@ void oggpack_adv(oggpack_buffer *b,int bits){
   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;
@@ -83,16 +304,20 @@ void oggpack_adv1(oggpack_buffer *b){
   }
 }
 
+void oggpackB_adv1(oggpack_buffer *b){
+  oggpack_adv1(b);
+}
+
 /* bits <= 32 */
 long oggpack_read(oggpack_buffer *b,int bits){
-  unsigned long ret;
+  long ret;
   unsigned long m=mask[bits];
 
   bits+=b->endbit;
 
   if(b->endbyte+4>=b->storage){
     /* not the main path */
-    ret=-1UL;
+    ret=-1L;
     if(b->endbyte*8+bits>b->storage*8)goto overflow;
   }
   
@@ -119,12 +344,47 @@ long oggpack_read(oggpack_buffer *b,int bits){
   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(oggpack_buffer *b){
-  unsigned long ret;
+  long ret;
   
   if(b->endbyte>=b->storage){
     /* not the main path */
-    ret=-1UL;
+    ret=-1L;
     goto overflow;
   }
 
@@ -141,4 +401,50 @@ long oggpack_read1(oggpack_buffer *b){
   return(ret);
 }
 
+long oggpackB_read1(oggpack_buffer *b){
+  long ret;
+  
+  if(b->endbyte>=b->storage){
+    /* not the main path */
+    ret=-1L;
+    goto overflow;
+  }
+
+  ret=(b->ptr[0]>>(7-b->endbit))&1;
+  
+ overflow:
+
+  b->endbit++;
+  if(b->endbit>7){
+    b->endbit=0;
+    b->ptr++;
+    b->endbyte++;
+  }
+  return(ret);
+}
+
+long oggpack_bytes(oggpack_buffer *b){
+  return(b->endbyte+(b->endbit+7)/8);
+}
+
+long oggpack_bits(oggpack_buffer *b){
+  return(b->endbyte*8+b->endbit);
+}
+
+long oggpackB_bytes(oggpack_buffer *b){
+  return oggpack_bytes(b);
+}
+
+long oggpackB_bits(oggpack_buffer *b){
+  return oggpack_bits(b);
+}
+  
+unsigned char *oggpack_get_buffer(oggpack_buffer *b){
+  return(b->buffer);
+}
+
+unsigned char *oggpackB_get_buffer(oggpack_buffer *b){
+  return oggpack_get_buffer(b);
+}
+
 #undef BUFFER_INCREMENT