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<div id="projectname">FFmpegKit iOS / macOS / tvOS API
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 <span id="projectnumber">4.4</span>
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<a href="#typedef-members">Typedefs</a> </div>
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<div class="title">ExecuteCallback.h File Reference</div> </div>
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<p><a href="../../de/d57/_execute_callback_8h_source.html">Go to the source code of this file.</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
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Typedefs</h2></td></tr>
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<tr class="memitem:ae866bcbfaac596a73cc73249540d2e12"><td class="memItemLeft" align="right" valign="top">typedef void(^ </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d57/_execute_callback_8h.html#ae866bcbfaac596a73cc73249540d2e12">ExecuteCallback</a>) (id< <a class="el" href="../../d2/d81/protocol_session-p.html">Session</a> > session)</td></tr>
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<tr class="separator:ae866bcbfaac596a73cc73249540d2e12"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<h2 class="groupheader">Typedef Documentation</h2>
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<a id="ae866bcbfaac596a73cc73249540d2e12"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ae866bcbfaac596a73cc73249540d2e12">◆ </a></span>ExecuteCallback</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">typedef void(^ ExecuteCallback) (id< <a class="el" href="../../d2/d81/protocol_session-p.html">Session</a> > session)</td>
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</div><div class="memdoc">
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<p>Callback invoked when an asynchronous session ends running. </p>
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<p><a class="el" href="../../d2/d81/protocol_session-p.html">Session</a> has either SessionStateCompleted or SessionStateFailed state when the callback is invoked. </p>
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<p>If it has SessionStateCompleted state, <code><a class="el" href="../../db/d76/interface_return_code.html">ReturnCode</a></code> should be checked to see the execution result. </p>
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<p>If <code>getState</code> returns SessionStateFailed then <code>getFailStackTrace</code> should be used to get the failure reason. </p><pre>
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switch ([session getState]) {
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case SessionStateCompleted:
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<a class="el" href="../../db/d76/interface_return_code.html">ReturnCode</a> *returnCode = [session getReturnCode];
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break;
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case SessionStateFailed:
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NSString *failStackTrace = [session getFailStackTrace];
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break;
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}
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</pre><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">session</td><td>session of the completed execution </td></tr>
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</table>
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</dd>
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</dl>
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<p class="definition">Definition at line <a class="el" href="../../de/d57/_execute_callback_8h_source.html#l00046">46</a> of file <a class="el" href="../../de/d57/_execute_callback_8h_source.html">ExecuteCallback.h</a>.</p>
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