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showbox-public-14
showbox-public-14 / ffmpeg-doc deb
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<div class="title">videotoolbox.h File Reference</div> </div>
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<p>Public libavcodec Videotoolbox header.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <stdint.h></code><br/>
<code>#include <VideoToolbox/VideoToolbox.h></code><br/>
<code>#include "<a class="el" href="avcodec_8h_source.html">libavcodec/avcodec.h</a>"</code><br/>
</div>
<p><a href="videotoolbox_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVVideotoolboxContext.html">AVVideotoolboxContext</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This struct holds all the information that needs to be passed between the caller and libavcodec for initializing Videotoolbox decoding. <a href="structAVVideotoolboxContext.html#details">More...</a><br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:a63024b9f4f18a0420b1e71b49205d3ca"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="videotoolbox_8h.html#a63024b9f4f18a0420b1e71b49205d3ca">Picture</a>   QuickdrawPicture</td></tr>
<tr class="separator:a63024b9f4f18a0420b1e71b49205d3ca"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:aad76884fa38a53154e84e38cd4d9cc67"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structAVVideotoolboxContext.html">AVVideotoolboxContext</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="videotoolbox_8h.html#aad76884fa38a53154e84e38cd4d9cc67">av_videotoolbox_alloc_context</a> (void)</td></tr>
<tr class="memdesc:aad76884fa38a53154e84e38cd4d9cc67"><td class="mdescLeft"> </td><td class="mdescRight">Allocate and initialize a Videotoolbox context. <a href="#aad76884fa38a53154e84e38cd4d9cc67">More...</a><br/></td></tr>
<tr class="separator:aad76884fa38a53154e84e38cd4d9cc67"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7ed4fd0ba05fc0558af8ed526b9350b9"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="videotoolbox_8h.html#a7ed4fd0ba05fc0558af8ed526b9350b9">av_videotoolbox_default_init</a> (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td></tr>
<tr class="memdesc:a7ed4fd0ba05fc0558af8ed526b9350b9"><td class="mdescLeft"> </td><td class="mdescRight">This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation. <a href="#a7ed4fd0ba05fc0558af8ed526b9350b9">More...</a><br/></td></tr>
<tr class="separator:a7ed4fd0ba05fc0558af8ed526b9350b9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8c860120fc0583fa53befdb7fa26a5d8"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="videotoolbox_8h.html#a8c860120fc0583fa53befdb7fa26a5d8">av_videotoolbox_default_init2</a> (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, <a class="el" href="structAVVideotoolboxContext.html">AVVideotoolboxContext</a> *vtctx)</td></tr>
<tr class="memdesc:a8c860120fc0583fa53befdb7fa26a5d8"><td class="mdescLeft"> </td><td class="mdescRight">This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation. <a href="#a8c860120fc0583fa53befdb7fa26a5d8">More...</a><br/></td></tr>
<tr class="separator:a8c860120fc0583fa53befdb7fa26a5d8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7628aa41b2d82919c2438f106b564167"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="videotoolbox_8h.html#a7628aa41b2d82919c2438f106b564167">av_videotoolbox_default_free</a> (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td></tr>
<tr class="memdesc:a7628aa41b2d82919c2438f106b564167"><td class="mdescLeft"> </td><td class="mdescRight">This function must be called to free the Videotoolbox context initialized with <a class="el" href="videotoolbox_8h.html#a7ed4fd0ba05fc0558af8ed526b9350b9" title="This is a convenience function that creates and sets up the Videotoolbox context using an internal im...">av_videotoolbox_default_init()</a>. <a href="#a7628aa41b2d82919c2438f106b564167">More...</a><br/></td></tr>
<tr class="separator:a7628aa41b2d82919c2438f106b564167"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Public libavcodec Videotoolbox header. </p>
<p>Definition in file <a class="el" href="videotoolbox_8h_source.html">videotoolbox.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="a63024b9f4f18a0420b1e71b49205d3ca"></a>
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<td class="memname">#define Picture   QuickdrawPicture</td>
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<p>Definition at line <a class="el" href="videotoolbox_8h_source.html#l00034">34</a> of file <a class="el" href="videotoolbox_8h_source.html">videotoolbox.h</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="aad76884fa38a53154e84e38cd4d9cc67"></a>
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<td class="memname"><a class="el" href="structAVVideotoolboxContext.html">AVVideotoolboxContext</a>* av_videotoolbox_alloc_context </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Allocate and initialize a Videotoolbox context. </p>
<p>This function should be called from the get_format() callback when the caller selects the AV_PIX_FMT_VIDETOOLBOX format. The caller must then create the decoder object (using the output callback provided by libavcodec) that will be used for Videotoolbox-accelerated decoding.</p>
<p>When decoding with Videotoolbox is finished, the caller must destroy the decoder object and free the Videotoolbox context using <a class="el" href="group__lavu__mem.html#ga0c9096f498624c525aa2315b8a20c411" title="Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...">av_free()</a>.</p>
<dl class="section return"><dt>Returns</dt><dd>the newly allocated context or NULL on failure </dd></dl>
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<td class="memname">int av_videotoolbox_default_init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>avctx</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">avctx</td><td>the corresponding codec context</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>>= 0 on success, a negative AVERROR code on failure </dd></dl>
</div>
</div>
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<td class="memname">int av_videotoolbox_default_init2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>avctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structAVVideotoolboxContext.html">AVVideotoolboxContext</a> * </td>
<td class="paramname"><em>vtctx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">avctx</td><td>the corresponding codec context </td></tr>
<tr><td class="paramname">vtctx</td><td>the Videotoolbox context to use</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>>= 0 on success, a negative AVERROR code on failure </dd></dl>
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<td class="memname">void av_videotoolbox_default_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>avctx</em></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<p>This function must be called to free the Videotoolbox context initialized with <a class="el" href="videotoolbox_8h.html#a7ed4fd0ba05fc0558af8ed526b9350b9" title="This is a convenience function that creates and sets up the Videotoolbox context using an internal im...">av_videotoolbox_default_init()</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">avctx</td><td>the corresponding codec context </td></tr>
</table>
</dd>
</dl>
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