Diffstat (limited to 'core/multimedia/opieplayer/vorbis/tremor/info.c') (more/less context) (ignore whitespace changes)
-rw-r--r-- | core/multimedia/opieplayer/vorbis/tremor/info.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/core/multimedia/opieplayer/vorbis/tremor/info.c b/core/multimedia/opieplayer/vorbis/tremor/info.c index 941695e..3499ae4 100644 --- a/core/multimedia/opieplayer/vorbis/tremor/info.c +++ b/core/multimedia/opieplayer/vorbis/tremor/info.c @@ -4,194 +4,194 @@ * * * 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 "ogg.h" #include "ivorbiscodec.h" #include "codec_internal.h" #include "codebook.h" #include "registry.h" #include "window.h" #include "misc.h" #include "os.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; for(i=0;i<vc->comments;i++) if(vc->user_comments[i])_ogg_free(vc->user_comments[i]); if(vc->user_comments)_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)); } - 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 */ _mapping_P[ci->map_type[i]]->free_info(ci->map_param[i]); for(i=0;i<ci->floors;i++) /* unpack does the range checking */ _floor_P[ci->floor_type[i]]->free_info(ci->floor_param[i]); for(i=0;i<ci->residues;i++) /* unpack does the range checking */ _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=oggpack_read(opb,32); if(vendorlen<0)goto err_out; vc->vendor=(char *)_ogg_calloc(vendorlen+1,1); _v_readstring(opb,vc->vendor,vendorlen); vc->comments=oggpack_read(opb,32); if(vc->comments<0)goto err_out; vc->user_comments=(char **)_ogg_calloc(vc->comments+1,sizeof(*vc->user_comments)); vc->comment_lengths=(int *)_ogg_calloc(vc->comments+1, sizeof(*vc->comment_lengths)); for(i=0;i<vc->comments;i++){ int len=oggpack_read(opb,32); |