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diff --git a/vorbis/doc/vorbisfile/ov_read.html b/vorbis/doc/vorbisfile/ov_read.html deleted file mode 100644 index 5461a84..0000000 --- a/vorbis/doc/vorbisfile/ov_read.html +++ /dev/null @@ -1,148 +0,0 @@ -<html> - -<head> -<title>Vorbisfile - function - ov_read</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>Vorbisfile documentation</p></td> -<td align=right><p class=tiny>vorbisfile version 1.3.2 - 20101101</p></td> -</tr> -</table> - -<h1>ov_read()</h1> - -<p><i>declared in "vorbis/vorbisfile.h";</i></p> - -<p> - This is the main function used to decode a Vorbis file within a - loop. It returns up to the specified number of bytes of decoded PCM audio - in the requested endianness, signedness, and word size. If the audio is - multichannel, the channels are interleaved in the output buffer. - If the passed in buffer is large, <tt>ov_read()</tt> will not fill - it; the passed in buffer size is treated as a <em>limit</em> and - not a request. - -<p>The output channels are in stream order and not remapped. Vorbis I -defines channel order as follows: - -<ul> -<li>one channel - the stream is monophonic -<li>two channels - the stream is stereo. channel order: left, right -<li>three channels - the stream is a 1d-surround encoding. channel order: left, -center, right -<li>four channels - the stream is quadraphonic surround. channel order: front left, -front right, rear left, rear right -<li>five channels - the stream is five-channel surround. channel order: front left, -center, front right, rear left, rear right -<li>six channels - the stream is 5.1 surround. channel order: front left, center, -front right, rear left, rear right, LFE -<li>seven channels - the stream is 6.1 surround. channel order: front left, center, -front right, side left, side right, rear center, LFE -<li>eight channels - the stream is 7.1 surround. channel order: front left, center, -front right, side left, side right, rear left, rear right, -LFE -<li>greater than eight channels - channel use and order is undefined -</ul> - -<p>Note that up to this point, the Vorbisfile API could more or less hide the - multiple logical bitstream nature of chaining from the toplevel - application if the toplevel application didn't particularly care. - However, when reading audio back, the application must be aware - that multiple bitstream sections do not necessarily use the same - number of channels or sampling rate. <p> <tt>ov_read()</tt> passes - back the index of the sequential logical bitstream currently being - decoded (in <tt>*bitstream</tt>) along with the PCM data in order - that the toplevel application can handle channel and/or sample - rate changes. This number will be incremented at chaining - boundaries even for non-seekable streams. For seekable streams, it - represents the actual chaining index within the physical bitstream. -<p> - -<br><br> -<table border=0 color=black cellspacing=0 cellpadding=7> -<tr bgcolor=#cccccc> - <td> -<pre><b> -long ov_read(<a href="OggVorbis_File.html">OggVorbis_File</a> *vf, char *buffer, int length, int bigendianp, int word, int sgned, int *bitstream); -</b></pre> - </td> -</tr> -</table> - -<h3>Parameters</h3> -<dl> -<dt><i>vf</i></dt> -<dd>A pointer to the OggVorbis_File structure--this is used for ALL the externally visible libvorbisfile -functions.</dd> -<dt><i>buffer</i></dt> -<dd>A pointer to an output buffer. The decoded output is inserted into this buffer.</dd> -<dt><i>length</i></dt> -<dd>Number of bytes to be read into the buffer. Should be the same size as the buffer. A typical value is 4096.</dd> -<dt><i>bigendianp</i></dt> -<dd>Specifies big or little endian byte packing. 0 for little endian, 1 for b -ig endian. Typical value is 0.</dd> -<dt><i>word</i></dt> -<dd>Specifies word size. Possible arguments are 1 for 8-bit samples, or 2 or -16-bit samples. Typical value is 2.</dd> -<dt><i>sgned</i></dt> -<dd>Signed or unsigned data. 0 for unsigned, 1 for signed. Typically 1.</dd> -<dt><i>bitstream</i></dt> -<dd>A pointer to the number of the current logical bitstream.</dd> -</dl> - - -<h3>Return Values</h3> -<blockquote> -<dl> -<dt>OV_HOLE</dt> - <dd>indicates there was an interruption in the data. - <br>(one of: garbage between pages, loss of sync followed by - recapture, or a corrupt page)</dd> -<dt>OV_EBADLINK</dt> - <dd>indicates that an invalid stream section was supplied to - libvorbisfile, or the requested link is corrupt.</dd> -<dt>OV_EINVAL</dt> - <dd>indicates the initial file headers couldn't be read or - are corrupt, or that the initial open call for <i>vf</i> - failed.</dd> -<dt>0</dt> - <dd>indicates EOF</dd> -<dt><i>n</i></dt> - <dd>indicates actual number of bytes read. <tt>ov_read()</tt> will - decode at most one vorbis packet per invocation, so the value - returned will generally be less than <tt>length</tt>. -</dl> -</blockquote> - -<h3>Notes</h3> -<p><b>Typical usage:</b> -<blockquote> -<tt>bytes_read = ov_read(&vf, -buffer, 4096,0,2,1,&current_section)</tt> -</blockquote> - -This reads up to 4096 bytes into a buffer, with signed 16-bit -little-endian samples. -</p> - - - -<br><br> -<hr noshade> -<table border=0 width=100%> -<tr valign=top> -<td><p class=tiny>copyright © 2000-2010 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>Vorbisfile documentation</p></td> -<td align=right><p class=tiny>vorbisfile version 1.3.2 - 20101101</p></td> -</tr> -</table> - -</body> - -</html> |