libdvdnav-doc 6.0.0-1 / usr / share / doc / libdvdnav-dev / html / firstprog.html

This file is indexed.

/usr/share/doc/libdvdnav-dev/html/firstprog.html is in libdvdnav-doc 6.0.0-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.13"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>libdvdnav: A first libdvdnav program</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname">libdvdnav
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.13 -->
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
$(function() {
  initMenu('',false,false,'search.php','Search');
});
</script>
<div id="main-nav"></div>
</div><!-- top -->
<div class="header">
  <div class="headertitle">
<div class="title">A first libdvdnav program </div>  </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><h1><a class="anchor" id="compiling"></a>
Compiling a libdvdnav program</h1>
<p>Below is a simple <code>libdvdnav</code> program. Type/copy it and save it into the file 'dvdtest.c'.</p>
<pre class="fragment">#include &lt;stdio.h&gt;
#include &lt;dvdnav/dvdnav.h&gt;
#include &lt;dvdnav/dvdnav_events.h&gt;
#include &lt;sys/types.h&gt;

int main(int argc, char **argv) {
  dvdnav_t *dvdnav;
  int finished, len, event;
  uint8_t buf[2050];

  /* Open the DVD */
  dvdnav_open(&amp;dvdnav, "/dev/dvd");

  fprintf(stderr, "Reading...\n");
  finished = 0;
  while(!finished) {
    int result = dvdnav_get_next_block(dvdnav, buf,
                                       &amp;event, &amp;len);

    if(result == DVDNAV_STATUS_ERR) {
      fprintf(stderr, "Error getting next block (%s)\n",
              dvdnav_err_to_string(dvdnav));
      exit(1);
    }

    switch(event) {
     case DVDNAV_BLOCK_OK:
        /* Write output to stdout */
        fwrite(buf, len, 1, stdout);
      break;
     case DVDNAV_STILL_FRAME:
       {
        fprintf(stderr, "Skipping still frame\n");
        dvdnav_still_skip(dvdnav);
       }
      break;
     case DVDNAV_STOP:
       {
        finished = 1;
       }
     default:
      fprintf(stderr, "Unhandled event (%i)\n", event);
      finished = 1;
      break;
    }
  }

  dvdnav_close(dvdnav);

  return 0;
}
</pre><p>If you have correctly installled <code>libdvdnav</code>, you should have the command 'dvdnav-config' in your path. If so you can compile this program with </p><pre class="fragment">  gcc -o dvdtest dvdtest.c `dvdnav-config --cflags --libs`
</pre><p>If all goes well, this should generate the 'dvdtest' program in your current working directory. You can now start saving a MPEG 2 stream directly off your DVD with </p><pre class="fragment">  ./dvdtest 2&gt;error.log &gt;out.mpeg
</pre><p>If the command fails, check the error.log file for details.</p>
<h1><a class="anchor" id="walkthrorugh"></a>
Line-by-line walk through</h1>
<pre class="fragment"> include &lt;stdio.h&gt;
 include &lt;dvdnav/dvdnav.h&gt;
 include &lt;dvdnav/dvdnav_events.h&gt;
 include &lt;sys/types.h&gt;
</pre><p>These lines include the necessary headers. Almost all <code>libdvdnav</code> programs will only need to include the dvdnav.h and dvdnav_events.h header files from the dvdnav directory.</p>
<pre class="fragment"> dvdnav_open(&amp;dvdnav, "/dev/dvd");
</pre><p>The <code>libdvdnav</code> uses <code>libdvdread</code> for its DVD I/O. <code>libdvdread</code> accesses the DVD-device directly so dvdnav_open() needs to be passed the location of the DVD device. <code>libdvdread</code> can also open DVD images/mounted DVDs. Read the <code>libdvdread</code> documentation for more information.</p>
<pre class="fragment"> int result = dvdnav_get_next_block(dvdnav, buf,
                                    &amp;event, &amp;len);
</pre><p>Return to <a class="el" href="tutorial.html">A libdvdnav Tutorial</a>. </p>
</div></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.13
</small></address>
</body>
</html>

APT Browse - Built by Thomas Orozco.