projects / OpenSPARC-T2-SAM / blame
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| 54 | <H2><A NAME="SECTION0016520000000000000000"></A><A NAME="Wave-write-objects"></A> | |
| 55 | <BR> | |
| 56 | 14.5.2 Wave_write Objects | |
| 57 | </H2> | |
| 58 | ||
| 59 | <P> | |
| 60 | Wave_write objects, as returned by <tt class="function">open()</tt>, have the | |
| 61 | following methods: | |
| 62 | ||
| 63 | <P> | |
| 64 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 65 | <td><nobr><b><tt id='l2h-4725' xml:id='l2h-4725' class="method">close</tt></b>(</nobr></td> | |
| 66 | <td><var></var>)</td></tr></table></dt> | |
| 67 | <dd> | |
| 68 | Make sure <var>nframes</var> is correct, and close the file. | |
| 69 | This method is called upon deletion. | |
| 70 | </dl> | |
| 71 | ||
| 72 | <P> | |
| 73 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 74 | <td><nobr><b><tt id='l2h-4726' xml:id='l2h-4726' class="method">setnchannels</tt></b>(</nobr></td> | |
| 75 | <td><var>n</var>)</td></tr></table></dt> | |
| 76 | <dd> | |
| 77 | Set the number of channels. | |
| 78 | </dl> | |
| 79 | ||
| 80 | <P> | |
| 81 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 82 | <td><nobr><b><tt id='l2h-4727' xml:id='l2h-4727' class="method">setsampwidth</tt></b>(</nobr></td> | |
| 83 | <td><var>n</var>)</td></tr></table></dt> | |
| 84 | <dd> | |
| 85 | Set the sample width to <var>n</var> bytes. | |
| 86 | </dl> | |
| 87 | ||
| 88 | <P> | |
| 89 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 90 | <td><nobr><b><tt id='l2h-4728' xml:id='l2h-4728' class="method">setframerate</tt></b>(</nobr></td> | |
| 91 | <td><var>n</var>)</td></tr></table></dt> | |
| 92 | <dd> | |
| 93 | Set the frame rate to <var>n</var>. | |
| 94 | </dl> | |
| 95 | ||
| 96 | <P> | |
| 97 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 98 | <td><nobr><b><tt id='l2h-4729' xml:id='l2h-4729' class="method">setnframes</tt></b>(</nobr></td> | |
| 99 | <td><var>n</var>)</td></tr></table></dt> | |
| 100 | <dd> | |
| 101 | Set the number of frames to <var>n</var>. This will be changed later if | |
| 102 | more frames are written. | |
| 103 | </dl> | |
| 104 | ||
| 105 | <P> | |
| 106 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 107 | <td><nobr><b><tt id='l2h-4730' xml:id='l2h-4730' class="method">setcomptype</tt></b>(</nobr></td> | |
| 108 | <td><var>type, name</var>)</td></tr></table></dt> | |
| 109 | <dd> | |
| 110 | Set the compression type and description. | |
| 111 | </dl> | |
| 112 | ||
| 113 | <P> | |
| 114 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 115 | <td><nobr><b><tt id='l2h-4731' xml:id='l2h-4731' class="method">setparams</tt></b>(</nobr></td> | |
| 116 | <td><var>tuple</var>)</td></tr></table></dt> | |
| 117 | <dd> | |
| 118 | The <var>tuple</var> should be <code>(<var>nchannels</var>, <var>sampwidth</var>, | |
| 119 | <var>framerate</var>, <var>nframes</var>, <var>comptype</var>, <var>compname</var>)</code>, with | |
| 120 | values valid for the <tt class="method">set*()</tt> methods. Sets all parameters. | |
| 121 | </dl> | |
| 122 | ||
| 123 | <P> | |
| 124 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 125 | <td><nobr><b><tt id='l2h-4732' xml:id='l2h-4732' class="method">tell</tt></b>(</nobr></td> | |
| 126 | <td><var></var>)</td></tr></table></dt> | |
| 127 | <dd> | |
| 128 | Return current position in the file, with the same disclaimer for | |
| 129 | the <tt class="method">Wave_read.tell()</tt> and <tt class="method">Wave_read.setpos()</tt> | |
| 130 | methods. | |
| 131 | </dl> | |
| 132 | ||
| 133 | <P> | |
| 134 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 135 | <td><nobr><b><tt id='l2h-4733' xml:id='l2h-4733' class="method">writeframesraw</tt></b>(</nobr></td> | |
| 136 | <td><var>data</var>)</td></tr></table></dt> | |
| 137 | <dd> | |
| 138 | Write audio frames, without correcting <var>nframes</var>. | |
| 139 | </dl> | |
| 140 | ||
| 141 | <P> | |
| 142 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 143 | <td><nobr><b><tt id='l2h-4734' xml:id='l2h-4734' class="method">writeframes</tt></b>(</nobr></td> | |
| 144 | <td><var>data</var>)</td></tr></table></dt> | |
| 145 | <dd> | |
| 146 | Write audio frames and make sure <var>nframes</var> is correct. | |
| 147 | </dl> | |
| 148 | ||
| 149 | <P> | |
| 150 | Note that it is invalid to set any parameters after calling | |
| 151 | <tt class="method">writeframes()</tt> or <tt class="method">writeframesraw()</tt>, and any attempt | |
| 152 | to do so will raise <tt class="exception">wave.Error</tt>. | |
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