examples/sfexamples/oggvorbiscodec/src/libvorbis/doc/vorbisfile/vorbisfile_example_c.html

00001 <html>
00002 
00003 <head>
00004 <title>vorbisfile - vorbisfile_example.c</title>
00005 <link rel=stylesheet href="style.css" type="text/css">
00006 </head>
00007 
00008 <body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
00009 <table border=0 width=100%>
00010 <tr>
00011 <td><p class=tiny>Vorbisfile documentation</p></td>
00012 <td align=right><p class=tiny>vorbisfile version 1.68 - 20030307</p></td>
00013 </tr>
00014 </table>
00015 
00016 <h1>vorbisfile_example.c</h1>
00017 
00018 <p>
00019 The example program source:
00020 
00021 <br><br>
00022 <table border=0 width=100% color=black cellspacing=0 cellpadding=7>
00023 <tr bgcolor=#cccccc>
00024         <td>
00025 <pre><b>
00026 #include &lt;stdio.h&gt;
00027 #include &lt;stdlib.h&gt;
00028 #include &lt;math.h&gt;
00029 #include "vorbis/codec.h"
00030 #include "vorbis/vorbisfile.h"
00031 
00032 #ifdef _WIN32
00033 #include &lt;io.h&gt;
00034 #include &lt;fcntl.h&gt;
00035 #endif
00036 
00037 char pcmout[4096];
00038 
00039 int main(int argc, char **argv){
00040   OggVorbis_File vf;
00041   int eof=0;
00042   int current_section;
00043 
00044 #ifdef _WIN32
00045   _setmode( _fileno( stdin ), _O_BINARY );
00046   _setmode( _fileno( stdout ), _O_BINARY );
00047 #endif
00048 
00049   if(ov_open(stdin, &vf, NULL, 0) < 0) {
00050       fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n");
00051       exit(1);
00052   }
00053 
00054   {
00055     char **ptr=ov_comment(&vf,-1)->user_comments;
00056     vorbis_info *vi=ov_info(&vf,-1);
00057     while(*ptr){
00058       fprintf(stderr,"%s\n",*ptr);
00059       ++ptr;
00060     }
00061     fprintf(stderr,"\nBitstream is %d channel, %ldHz\n",vi->channels,vi->rate);
00062     fprintf(stderr,"Encoded by: %s\n\n",ov_comment(&vf,-1)->vendor);
00063   }
00064   
00065   while(!eof){
00066     long ret=ov_read(&vf,pcmout,sizeof(pcmout),0,2,1,&current_section);
00067     if (ret == 0) {
00068       /* EOF */
00069       eof=1;
00070     } else if (ret < 0) {
00071       /* error in the stream.  Not a problem, just reporting it in
00072          case we (the app) cares.  In this case, we don't. */
00073     } else {
00074       /* we don't bother dealing with sample rate changes, etc, but
00075          you'll have to */
00076       fwrite(pcmout,1,ret,stdout);
00077     }
00078   }
00079 
00080   ov_clear(&vf);
00081     
00082   fprintf(stderr,"Done.\n");
00083   return(0);
00084 }
00085 
00086 </b></pre>
00087         </td>
00088 </tr>
00089 </table>
00090 
00091 
00092 <br><br>
00093 <hr noshade>
00094 <table border=0 width=100%>
00095 <tr valign=top>
00096 <td><p class=tiny>copyright &copy; 2003 Xiph.org</p></td>
00097 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/index.html">Ogg Vorbis</a><br><a href="mailto:team@vorbis.org">team@vorbis.org</a></p></td>
00098 </tr><tr>
00099 <td><p class=tiny>Vorbisfile documentation</p></td>
00100 <td align=right><p class=tiny>vorbisfile version 1.68 - 20030307</p></td>
00101 </tr>
00102 </table>
00103 
00104 </body>
00105 
00106 </html>

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