| 1 | <html> |
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| 2 | |
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| 3 | <head> |
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| 4 | <title>libogg - Bitpacking Functions</title> |
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| 5 | <link rel=stylesheet href="style.css" type="text/css"> |
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| 6 | </head> |
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| 7 | |
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| 8 | <body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff"> |
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| 9 | <table border=0 width=100%> |
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| 10 | <tr> |
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| 11 | <td><p class=tiny>libogg documentation</p></td> |
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| 12 | <td align=right><p class=tiny>libogg release 1.0 - 20000615</p></td> |
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| 13 | </tr> |
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| 14 | </table> |
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| 15 | |
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| 16 | <h1>Bitpacking Functions</h1> |
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| 17 | <p>Libogg contains a basic bitpacking library that is useful for manipulating data within a buffer. |
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| 18 | <p> |
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| 19 | All the <b>libogg</b> specific functions are declared in "ogg/ogg.h". |
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| 20 | <p> |
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| 21 | |
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| 22 | <table border=1 color=black width=50% cellspacing=0 cellpadding=7> |
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| 23 | <tr bgcolor=#cccccc> |
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| 24 | <td><b>function</b></td> |
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| 25 | <td><b>purpose</b></td> |
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| 26 | </tr> |
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| 27 | <tr valign=top> |
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| 28 | <td><a href="oggpack_writeinit.html">oggpack_writeinit</a></td> |
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| 29 | <td>Initializes a buffer for writing using this bitpacking library.</td> |
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| 30 | </tr> |
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| 31 | <tr valign=top> |
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| 32 | <td><a href="oggpack_reset.html">oggpack_reset</a></td> |
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| 33 | <td>Clears and resets the buffer to the initial position.</td> |
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| 34 | </tr> |
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| 35 | <tr valign=top> |
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| 36 | <td><a href="oggpack_writeclear.html">oggpack_writeclear</a></td> |
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| 37 | <td>Frees the memory used by the buffer.</td> |
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| 38 | </tr> |
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| 39 | <tr valign=top> |
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| 40 | <td><a href="oggpack_readinit.html">oggpack_readinit</a></td> |
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| 41 | <td>Initializes a buffer for reading using this bitpacking library.</td> |
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| 42 | </tr> |
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| 43 | <tr valign=top> |
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| 44 | <td><a href="oggpack_write.html">oggpack_write</a></td> |
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| 45 | <td>Writes bytes to the specified location within the buffer.</td> |
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| 46 | </tr> |
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| 47 | <tr valign=top> |
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| 48 | <td><a href="oggpack_look.html">oggpack_look</a></td> |
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| 49 | <td>Look at a specified number of bits, <=32, without advancing the location pointer.</td> |
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| 50 | </tr> |
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| 51 | <tr valign=top> |
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| 52 | <td><a href="oggpack_look1.html">oggpack_look1</a></td> |
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| 53 | <td>Looks at one bit without advancing the location pointer.</td> |
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| 54 | </tr> |
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| 55 | <tr valign=top> |
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| 56 | <td><a href="oggpack_adv.html">oggpack_adv</a></td> |
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| 57 | <td>Advances the location pointer by a specified number of bits.</td> |
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| 58 | </tr> |
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| 59 | <tr valign=top> |
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| 60 | <td><a href="oggpack_adv1.html">oggpack_adv1</a></td> |
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| 61 | <td>Advances the location pointer by one bit.</td> |
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| 62 | </tr> |
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| 63 | <tr valign=top> |
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| 64 | <td><a href="oggpack_read.html">oggpack_read</a></td> |
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| 65 | <td>Reads a specified number of bits from the buffer.</td> |
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| 66 | </tr> |
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| 67 | <tr valign=top> |
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| 68 | <td><a href="oggpack_read1.html">oggpack_read1</a></td> |
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| 69 | <td>Reads one bit from the buffer.</td> |
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| 70 | </tr> |
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| 71 | <tr valign=top> |
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| 72 | <td><a href="oggpack_bytes.html">oggpack_bytes</a></td> |
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| 73 | <td>Returns the total number of bytes contained within the buffer.</td> |
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| 74 | </tr> |
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| 75 | <tr valign=top> |
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| 76 | <td><a href="oggpack_bits.html">oggpack_bits</a></td> |
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| 77 | <td>Returns the total number of bits contained within the buffer.</td> |
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| 78 | </tr> |
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| 79 | <tr valign=top> |
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| 80 | <td><a href="oggpack_get_buffer.html">oggpack_get_buffer</a></td> |
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| 81 | <td>Returns a pointer to the buffer encapsulated within the <a href="oggpack_buffer.html">oggpack_buffer</a> struct.</td> |
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| 82 | </tr> |
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| 83 | </table> |
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| 84 | |
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| 85 | <br><br> |
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| 86 | <hr noshade> |
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| 87 | <table border=0 width=100%> |
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| 88 | <tr valign=top> |
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| 89 | <td><p class=tiny>copyright © 2000 xiph.org</p></td> |
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| 90 | <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a><br><a href="mailto:team@xiph.org">team@xiph.org</a></p></td> |
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| 91 | </tr><tr> |
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| 92 | <td><p class=tiny>libogg documentation</p></td> |
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| 93 | <td align=right><p class=tiny>libogg release 1.0 - 20000615</p></td> |
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| 94 | </tr> |
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| 95 | </table> |
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| 96 | |
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| 97 | </body> |
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| 98 | |
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| 99 | </html> |
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