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<li class="navelem"><a class="el" href="namespaceGst.html">Gst</a></li><li class="navelem"><a class="el" href="classGst_1_1Fourcc.html">Fourcc</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">Gst::Fourcc Class Reference<div class="ingroups"><a class="el" href="group__GstHelperClasses.html">gstreamermm Helper Classes</a></div></div> </div>
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<p>A class that represents a 4 byte identifier (used in codecs).
<a href="classGst_1_1Fourcc.html#details">More...</a></p>
<p><code>#include <gstreamermm/value.h></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ac3eac2efda2be568cd46f1cb4468f4f6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#ac3eac2efda2be568cd46f1cb4468f4f6">Fourcc</a> ()</td></tr>
<tr class="memdesc:ac3eac2efda2be568cd46f1cb4468f4f6"><td class="mdescLeft"> </td><td class="mdescRight">Construct an undefined <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a>. <a href="#ac3eac2efda2be568cd46f1cb4468f4f6">More...</a><br /></td></tr>
<tr class="separator:ac3eac2efda2be568cd46f1cb4468f4f6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac164a0e075cd379a06bff7a0e47a2f7b"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#ac164a0e075cd379a06bff7a0e47a2f7b">Fourcc</a> (const <a class="el" href="classGst_1_1Fourcc.html">Fourcc</a>& src)</td></tr>
<tr class="memdesc:ac164a0e075cd379a06bff7a0e47a2f7b"><td class="mdescLeft"> </td><td class="mdescRight">Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from another. <a href="#ac164a0e075cd379a06bff7a0e47a2f7b">More...</a><br /></td></tr>
<tr class="separator:ac164a0e075cd379a06bff7a0e47a2f7b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a97d9c1006470136c1b7fd162adf2064a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#a97d9c1006470136c1b7fd162adf2064a">Fourcc</a> (char <a class="el" href="classGst_1_1Fourcc.html#acf91fd838bcfcd893b4f930b6d38354e">first</a>, char <a class="el" href="classGst_1_1Fourcc.html#a60af43e4884da0f93e29099213bd274f">second</a>, char <a class="el" href="classGst_1_1Fourcc.html#a7da1b41af8b6b32a3cf6039ddf25d076">third</a>, char <a class="el" href="classGst_1_1Fourcc.html#aafd90f49ff0154813ab92dbf318dfb4f">fourth</a>)</td></tr>
<tr class="memdesc:a97d9c1006470136c1b7fd162adf2064a"><td class="mdescLeft"> </td><td class="mdescRight">Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from 4 characters. <a href="#a97d9c1006470136c1b7fd162adf2064a">More...</a><br /></td></tr>
<tr class="separator:a97d9c1006470136c1b7fd162adf2064a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aac37d6c0fd7cb700ab3b4d9a702ee3e9"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#aac37d6c0fd7cb700ab3b4d9a702ee3e9">Fourcc</a> (const Glib::ustring& s)</td></tr>
<tr class="memdesc:aac37d6c0fd7cb700ab3b4d9a702ee3e9"><td class="mdescLeft"> </td><td class="mdescRight">Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from an input string. <a href="#aac37d6c0fd7cb700ab3b4d9a702ee3e9">More...</a><br /></td></tr>
<tr class="separator:aac37d6c0fd7cb700ab3b4d9a702ee3e9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1c3b2fed49d7e5f9145cd67ec2a47779"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#a1c3b2fed49d7e5f9145cd67ec2a47779">Fourcc</a> (guint32 fourcc)</td></tr>
<tr class="memdesc:a1c3b2fed49d7e5f9145cd67ec2a47779"><td class="mdescLeft"> </td><td class="mdescRight">Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from a 32 bit unsigned integer. <a href="#a1c3b2fed49d7e5f9145cd67ec2a47779">More...</a><br /></td></tr>
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<tr class="memitem:a502da2c00b3f876eb7f5d3036ec1f915"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGst_1_1Fourcc.html">Fourcc</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#a502da2c00b3f876eb7f5d3036ec1f915">operator=</a> (const <a class="el" href="classGst_1_1Fourcc.html">Fourcc</a>& src)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:acf91fd838bcfcd893b4f930b6d38354e"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#acf91fd838bcfcd893b4f930b6d38354e">first</a></td></tr>
<tr class="separator:acf91fd838bcfcd893b4f930b6d38354e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a60af43e4884da0f93e29099213bd274f"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#a60af43e4884da0f93e29099213bd274f">second</a></td></tr>
<tr class="separator:a60af43e4884da0f93e29099213bd274f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7da1b41af8b6b32a3cf6039ddf25d076"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#a7da1b41af8b6b32a3cf6039ddf25d076">third</a></td></tr>
<tr class="separator:a7da1b41af8b6b32a3cf6039ddf25d076"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aafd90f49ff0154813ab92dbf318dfb4f"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Fourcc.html#aafd90f49ff0154813ab92dbf318dfb4f">fourth</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A class that represents a 4 byte identifier (used in codecs). </p>
<p><a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> is used to store a four byte identifier in <a class="el" href="classGst_1_1Structure.html" title="Generic class containing fields of names and values. ">Gst::Structure</a> of <a class="el" href="classGst_1_1Caps.html" title="Structure describing sets of media formats. ">Gst::Caps</a> as a value representing a property (see GStreamer Application Development Manual section 8.2.2 and GstValue docs). When the value is set, it is transformed to a GStreamer GType so retrieving the value is a bit different. The class can be used in setting and getting a <a class="el" href="classGst_1_1Structure.html" title="Generic class containing fields of names and values. ">Gst::Structure</a> field like so:</p>
<div class="fragment"><div class="line">Glib::Value<Gst::Fourcc> value;</div><div class="line">value.init(Glib::Value<Gst::Fourcc>::value_type());</div><div class="line">value.set(<a class="code" href="classGst_1_1Fourcc.html">Gst::Fourcc</a>(<span class="charliteral">'M'</span>, <span class="charliteral">'J'</span>, <span class="charliteral">'P'</span>, <span class="charliteral">'G'</span>));</div><div class="line"></div><div class="line"><a class="code" href="classGst_1_1Structure.html">Gst::Structure</a> structure(<span class="stringliteral">"my-structure"</span>);</div><div class="line">structure.set_field(<span class="stringliteral">"id"</span>, value);</div><div class="line">...</div><div class="line">Glib::ValueBase gst_value;</div><div class="line">structure.get_field(<span class="stringliteral">"id"</span>, gst_value);</div><div class="line"><a class="code" href="classGst_1_1Fourcc.html">Gst::Fourcc</a> fourcc(gst_value);</div><div class="line"><span class="keywordtype">char</span> first_char = fourcc.first;</div><div class="line">...</div></div><!-- fragment --><p>Last reviewed on 2016-08-27 (1.8.0) </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a id="ac3eac2efda2be568cd46f1cb4468f4f6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac3eac2efda2be568cd46f1cb4468f4f6">◆ </a></span>Fourcc() <span class="overload">[1/5]</span></h2>
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<td class="memname">Gst::Fourcc::Fourcc </td>
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<p>Construct an undefined <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a>. </p>
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<a id="ac164a0e075cd379a06bff7a0e47a2f7b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac164a0e075cd379a06bff7a0e47a2f7b">◆ </a></span>Fourcc() <span class="overload">[2/5]</span></h2>
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<td class="memname">Gst::Fourcc::Fourcc </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGst_1_1Fourcc.html">Fourcc</a>& </td>
<td class="paramname"><em>src</em></td><td>)</td>
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<p>Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from another. </p>
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<a id="a97d9c1006470136c1b7fd162adf2064a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a97d9c1006470136c1b7fd162adf2064a">◆ </a></span>Fourcc() <span class="overload">[3/5]</span></h2>
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<td class="memname">Gst::Fourcc::Fourcc </td>
<td>(</td>
<td class="paramtype">char </td>
<td class="paramname"><em>first</em>, </td>
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<td class="paramtype">char </td>
<td class="paramname"><em>second</em>, </td>
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<td class="paramtype">char </td>
<td class="paramname"><em>third</em>, </td>
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<td class="paramtype">char </td>
<td class="paramname"><em>fourth</em> </td>
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<td>)</td>
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<p>Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from 4 characters. </p>
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<a id="aac37d6c0fd7cb700ab3b4d9a702ee3e9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aac37d6c0fd7cb700ab3b4d9a702ee3e9">◆ </a></span>Fourcc() <span class="overload">[4/5]</span></h2>
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<td class="memname">Gst::Fourcc::Fourcc </td>
<td>(</td>
<td class="paramtype">const Glib::ustring & </td>
<td class="paramname"><em>s</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">explicit</span></span> </td>
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<p>Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from an input string. </p>
<p>Caller is responsible for ensuring the input string consists of at least four characters. </p>
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<a id="a1c3b2fed49d7e5f9145cd67ec2a47779"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1c3b2fed49d7e5f9145cd67ec2a47779">◆ </a></span>Fourcc() <span class="overload">[5/5]</span></h2>
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<td class="memname">Gst::Fourcc::Fourcc </td>
<td>(</td>
<td class="paramtype">guint32 </td>
<td class="paramname"><em>fourcc</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">explicit</span></span> </td>
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<p>Construct a <a class="el" href="classGst_1_1Fourcc.html" title="A class that represents a 4 byte identifier (used in codecs). ">Gst::Fourcc</a> from a 32 bit unsigned integer. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="a502da2c00b3f876eb7f5d3036ec1f915"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a502da2c00b3f876eb7f5d3036ec1f915">◆ </a></span>operator=()</h2>
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<td class="memname"><a class="el" href="classGst_1_1Fourcc.html">Fourcc</a>& Gst::Fourcc::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGst_1_1Fourcc.html">Fourcc</a>& </td>
<td class="paramname"><em>src</em></td><td>)</td>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#acf91fd838bcfcd893b4f930b6d38354e">◆ </a></span>first</h2>
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<td class="memname">char Gst::Fourcc::first</td>
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<a id="aafd90f49ff0154813ab92dbf318dfb4f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aafd90f49ff0154813ab92dbf318dfb4f">◆ </a></span>fourth</h2>
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<td class="memname">char Gst::Fourcc::fourth</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a60af43e4884da0f93e29099213bd274f">◆ </a></span>second</h2>
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<td class="memname">char Gst::Fourcc::second</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a7da1b41af8b6b32a3cf6039ddf25d076">◆ </a></span>third</h2>
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<td class="memname">char Gst::Fourcc::third</td>
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