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be2516a091
Removed some obsolete patches that were either backports from newer svn revisions, or a fix for older, non-applicable assemblers. Update our own README to account for upstream's migration to git. I didn't remove the bug 703135 patch as it's for MSVC it seems, and we still use MSVC for Windows. Also deleted some unneeded upstream code deleted by Mozilla as well.
131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
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* by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
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* *
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********************************************************************
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function:
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last mod: $Id$
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********************************************************************/
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include "internal.h"
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/*This is more or less the same as strncasecmp, but that doesn't exist
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everywhere, and this is a fairly trivial function, so we include it.
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Note: We take advantage of the fact that we know _n is less than or equal to
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the length of at least one of the strings.*/
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static int oc_tagcompare(const char *_s1,const char *_s2,int _n){
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int c;
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for(c=0;c<_n;c++){
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if(toupper(_s1[c])!=toupper(_s2[c]))return !0;
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}
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return _s1[c]!='=';
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}
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void th_info_init(th_info *_info){
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memset(_info,0,sizeof(*_info));
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_info->version_major=TH_VERSION_MAJOR;
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_info->version_minor=TH_VERSION_MINOR;
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_info->version_subminor=TH_VERSION_SUB;
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_info->keyframe_granule_shift=6;
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}
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void th_info_clear(th_info *_info){
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memset(_info,0,sizeof(*_info));
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}
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void th_comment_init(th_comment *_tc){
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memset(_tc,0,sizeof(*_tc));
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}
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void th_comment_add(th_comment *_tc,const char *_comment){
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char **user_comments;
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int *comment_lengths;
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int comment_len;
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user_comments=_ogg_realloc(_tc->user_comments,
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(_tc->comments+2)*sizeof(*_tc->user_comments));
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if(user_comments==NULL)return;
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_tc->user_comments=user_comments;
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comment_lengths=_ogg_realloc(_tc->comment_lengths,
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(_tc->comments+2)*sizeof(*_tc->comment_lengths));
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if(comment_lengths==NULL)return;
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_tc->comment_lengths=comment_lengths;
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comment_len=strlen(_comment);
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comment_lengths[_tc->comments]=comment_len;
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user_comments[_tc->comments]=_ogg_malloc(comment_len+1);
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if(user_comments[_tc->comments]==NULL)return;
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memcpy(_tc->user_comments[_tc->comments],_comment,comment_len+1);
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_tc->comments++;
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_tc->user_comments[_tc->comments]=NULL;
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}
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void th_comment_add_tag(th_comment *_tc,const char *_tag,const char *_val){
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char *comment;
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int tag_len;
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int val_len;
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tag_len=strlen(_tag);
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val_len=strlen(_val);
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/*+2 for '=' and '\0'.*/
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comment=_ogg_malloc(tag_len+val_len+2);
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if(comment==NULL)return;
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memcpy(comment,_tag,tag_len);
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comment[tag_len]='=';
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memcpy(comment+tag_len+1,_val,val_len+1);
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th_comment_add(_tc,comment);
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_ogg_free(comment);
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}
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char *th_comment_query(th_comment *_tc,const char *_tag,int _count){
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long i;
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int found;
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int tag_len;
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tag_len=strlen(_tag);
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found=0;
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for(i=0;i<_tc->comments;i++){
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if(!oc_tagcompare(_tc->user_comments[i],_tag,tag_len)){
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/*We return a pointer to the data, not a copy.*/
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if(_count==found++)return _tc->user_comments[i]+tag_len+1;
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}
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}
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/*Didn't find anything.*/
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return NULL;
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}
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int th_comment_query_count(th_comment *_tc,const char *_tag){
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long i;
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int tag_len;
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int count;
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tag_len=strlen(_tag);
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count=0;
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for(i=0;i<_tc->comments;i++){
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if(!oc_tagcompare(_tc->user_comments[i],_tag,tag_len))count++;
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}
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return count;
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}
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void th_comment_clear(th_comment *_tc){
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if(_tc!=NULL){
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long i;
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for(i=0;i<_tc->comments;i++)_ogg_free(_tc->user_comments[i]);
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_ogg_free(_tc->user_comments);
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_ogg_free(_tc->comment_lengths);
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_ogg_free(_tc->vendor);
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memset(_tc,0,sizeof(*_tc));
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}
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}
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