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diff --git a/doc/diff.html b/doc/diff.html new file mode 100644 index 0000000..ae0b908 --- /dev/null +++ b/doc/diff.html @@ -0,0 +1,67 @@ +<html> + +<head> +<title>Tremor - Vorbisfile Differences</title> +<link rel=stylesheet href="style.css" type="text/css"> +</head> + +<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff"> +<table border=0 width=100%> +<tr> +<td><p class=tiny>Tremor documentation</p></td> +<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td> +</tr> +</table> + +<h1>Tremor / Vorbisfile API Differences</h1> + +<p> + +The Tremor libvorbisidec library exposes an API intended to be as +similar as possible to the familiar 'vorbisfile' library included with +the open source Vorbis reference libraries distributed for free by +Xiph.org. Differences are summarized below.<p> + +<h2>OggVorbis_File structure</h2> + +The <tt>bittrack</tt> and <tt>samptrack</tt> fields in the <a +href="OggVorbis_File.html">OggVorbis_File</a> structure are changed to +64 bit integers in Tremor, from doubles in vorbisfile. + +<h2>Time-related seek and tell function calls</h2> + +The <a href="ov_time_total.html">ov_time_total()</a> and <a +href="ov_time_tell.html">ov_time_tell()</a> functions return milliseconds as +64 bit integers in Tremor. In vorbisfile, these functions returned +seconds as doubles.<p> + +In Tremor, the <a href="ov_time_seek.html">ov_time_seek()</a> and <a +href="ov_time_seek_page.html">ov_time_seek_page()</a> calls take +seeking positions in milliseconds as 64 bit integers, rather than in +seconds as doubles as in Vorbisfile.<p> + +<h2>Reading decoded data</h2> + +Tremor <a href="ov_read.html">ov_read()</a> always returns data as +signed 16 bit interleaved PCM in host byte order. As such, it does not +take arguments to request specific signedness, byte order or bit depth +as in Vorbisfile.<p> + +Tremor does not implement <tt>ov_read_float()</tt>.<p> + + +<br><br> +<hr noshade> +<table border=0 width=100%> +<tr valign=top> +<td><p class=tiny>copyright © 2002 Xiph.org</p></td> +<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td> +</tr><tr> +<td><p class=tiny>Tremor documentation</p></td> +<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td> +</tr> +</table> + +</body> + +</html> |