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  24 <a href="#gst-plugins-base-libs-gsttaglicenses.synopsis" class="shortcut">Top</a>
  25                    |
  26                   <a href="#gst-plugins-base-libs-gsttaglicenses.description" class="shortcut">Description</a>
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  29 <div class="refentry">
  30 <a name="gst-plugins-base-libs-gsttaglicenses"></a><div class="titlepage"></div>
  31 <div class="refnamediv"><table width="100%"><tr>
  32 <td valign="top">
  33 <h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gsttaglicenses.top_of_page"></a>gsttaglicenses</span></h2>
  34 <p>gsttaglicenses — utility functions for Creative Commons licenses</p>
  35 </td>
  36 <td valign="top" align="right"></td>
  37 </tr></table></div>
  38 <div class="refsynopsisdiv">
  39 <a name="gst-plugins-base-libs-gsttaglicenses.synopsis"></a><h2>Synopsis</h2>
  40 <pre class="synopsis">
  41 #include &lt;gst/tag/tag.h&gt;
  42
  43 enum                <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#GstTagLicenseFlags" title="enum GstTagLicenseFlags">GstTagLicenseFlags</a>;
  44 <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#GstTagLicenseFlags" title="enum GstTagLicenseFlags"><span class="returnvalue">GstTagLicenseFlags</span></a>  <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-license-flags" title="gst_tag_get_license_flags ()">gst_tag_get_license_flags</a>           (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);
  45 const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-license-nick" title="gst_tag_get_license_nick ()">gst_tag_get_license_nick</a>            (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);
  46 const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-license-title" title="gst_tag_get_license_title ()">gst_tag_get_license_title</a>           (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);
  47 const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-license-description" title="gst_tag_get_license_description ()">gst_tag_get_license_description</a>     (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);
  48 const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-license-jurisdiction" title="gst_tag_get_license_jurisdiction ()">gst_tag_get_license_jurisdiction</a>    (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);
  49 const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-license-version" title="gst_tag_get_license_version ()">gst_tag_get_license_version</a>         (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);
  50 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> **            <a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#gst-tag-get-licenses" title="gst_tag_get_licenses ()">gst_tag_get_licenses</a>                (<em class="parameter"><code><span class="type">void</span></code></em>);
  51 </pre>
  52 </div>
  53 <div class="refsect1">
  54 <a name="gst-plugins-base-libs-gsttaglicenses.description"></a><h2>Description</h2>
  55 <p>
  56 Provides information about Creative Commons media licenses, which are
  57 often expressed in media files as a license URI in tags. Also useful
  58 for applications creating media files, in case the user wants to license
  59 the content under a Creative Commons license.
  60 </p>
  61 </div>
  62 <div class="refsect1">
  63 <a name="gst-plugins-base-libs-gsttaglicenses.details"></a><h2>Details</h2>
  64 <div class="refsect2">
  65 <a name="GstTagLicenseFlags"></a><h3>enum GstTagLicenseFlags</h3>
  66 <pre class="programlisting">typedef enum {
  67   GST_TAG_LICENSE_PERMITS_REPRODUCTION             = (1 &lt;&lt; 0),
  68   GST_TAG_LICENSE_PERMITS_DISTRIBUTION             = (1 &lt;&lt; 1),
  69   GST_TAG_LICENSE_PERMITS_DERIVATIVE_WORKS         = (1 &lt;&lt; 2),
  70   GST_TAG_LICENSE_PERMITS_SHARING                  = (1 &lt;&lt; 3),
  71
  72   GST_TAG_LICENSE_REQUIRES_NOTICE                  = (1 &lt;&lt; 8),
  73   GST_TAG_LICENSE_REQUIRES_ATTRIBUTION             = (1 &lt;&lt; 9),
  74   GST_TAG_LICENSE_REQUIRES_SHARE_ALIKE             = (1 &lt;&lt; 10),
  75   GST_TAG_LICENSE_REQUIRES_SOURCE_CODE             = (1 &lt;&lt; 11),
  76   GST_TAG_LICENSE_REQUIRES_COPYLEFT                = (1 &lt;&lt; 12),
  77   GST_TAG_LICENSE_REQUIRES_LESSER_COPYLEFT         = (1 &lt;&lt; 13),
  78
  79   GST_TAG_LICENSE_PROHIBITS_COMMERCIAL_USE         = (1 &lt;&lt; 16),
  80   GST_TAG_LICENSE_PROHIBITS_HIGH_INCOME_NATION_USE = (1 &lt;&lt; 17),
  81
  82   GST_TAG_LICENSE_CREATIVE_COMMONS_LICENSE         = (1 &lt;&lt; 24),
  83   GST_TAG_LICENSE_FREE_SOFTWARE_FOUNDATION_LICENSE = (1 &lt;&lt; 25)
  84 } GstTagLicenseFlags;
  85 </pre>
  86 <p>
  87 See http://creativecommons.org/ns for more information.
  88 </p>
  89 <div class="variablelist"><table border="0">
  90 <col align="left" valign="top">
  91 <tbody>
  92 <tr>
  93 <td><p><a name="GST-TAG-LICENSE-PERMITS-REPRODUCTION:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_PERMITS_REPRODUCTION</code></span></p></td>
  94 <td>making multiple copies
  95     is allowed
  96 </td>
  97 </tr>
  98 <tr>
  99 <td><p><a name="GST-TAG-LICENSE-PERMITS-DISTRIBUTION:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_PERMITS_DISTRIBUTION</code></span></p></td>
 100 <td>distribution, public display
 101     and public performance are allowed
 102 </td>
 103 </tr>
 104 <tr>
 105 <td><p><a name="GST-TAG-LICENSE-PERMITS-DERIVATIVE-WORKS:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_PERMITS_DERIVATIVE_WORKS</code></span></p></td>
 106 <td>distribution of derivative
 107     works is allowed
 108 </td>
 109 </tr>
 110 <tr>
 111 <td><p><a name="GST-TAG-LICENSE-PERMITS-SHARING:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_PERMITS_SHARING</code></span></p></td>
 112 <td>commercial derivatives are allowed,
 113     but only non-commercial distribution is allowed
 114 </td>
 115 </tr>
 116 <tr>
 117 <td><p><a name="GST-TAG-LICENSE-REQUIRES-NOTICE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_REQUIRES_NOTICE</code></span></p></td>
 118 <td>copyright and license notices
 119     must be kept intact
 120 </td>
 121 </tr>
 122 <tr>
 123 <td><p><a name="GST-TAG-LICENSE-REQUIRES-ATTRIBUTION:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_REQUIRES_ATTRIBUTION</code></span></p></td>
 124 <td>credit must be given to
 125     copyright holder and/or author
 126 </td>
 127 </tr>
 128 <tr>
 129 <td><p><a name="GST-TAG-LICENSE-REQUIRES-SHARE-ALIKE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_REQUIRES_SHARE_ALIKE</code></span></p></td>
 130 <td>derivative works must be
 131     licensed under the same terms or compatible terms as the original work
 132 </td>
 133 </tr>
 134 <tr>
 135 <td><p><a name="GST-TAG-LICENSE-REQUIRES-SOURCE-CODE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_REQUIRES_SOURCE_CODE</code></span></p></td>
 136 <td>source code (the preferred
 137     form for making modifications) must be provided when exercising some
 138     rights granted by the license
 139 </td>
 140 </tr>
 141 <tr>
 142 <td><p><a name="GST-TAG-LICENSE-REQUIRES-COPYLEFT:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_REQUIRES_COPYLEFT</code></span></p></td>
 143 <td>derivative and combined works
 144     must be licensed under specified terms, similar to those of the original
 145     work
 146 </td>
 147 </tr>
 148 <tr>
 149 <td><p><a name="GST-TAG-LICENSE-REQUIRES-LESSER-COPYLEFT:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_REQUIRES_LESSER_COPYLEFT</code></span></p></td>
 150 <td>derivative works must be
 151     licensed under specified terms, with at least the same conditions as
 152     the original work; combinations with the work may be licensed under
 153     different terms
 154 </td>
 155 </tr>
 156 <tr>
 157 <td><p><a name="GST-TAG-LICENSE-PROHIBITS-COMMERCIAL-USE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_PROHIBITS_COMMERCIAL_USE</code></span></p></td>
 158 <td>exercising rights for
 159     commercial purposes is prohibited
 160 </td>
 161 </tr>
 162 <tr>
 163 <td><p><a name="GST-TAG-LICENSE-PROHIBITS-HIGH-INCOME-NATION-USE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_PROHIBITS_HIGH_INCOME_NATION_USE</code></span></p></td>
 164 <td>use in a
 165     non-developing country is prohibited
 166 </td>
 167 </tr>
 168 <tr>
 169 <td><p><a name="GST-TAG-LICENSE-CREATIVE-COMMONS-LICENSE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_CREATIVE_COMMONS_LICENSE</code></span></p></td>
 170 <td>this license was created
 171     by the Creative Commons project
 172 </td>
 173 </tr>
 174 <tr>
 175 <td><p><a name="GST-TAG-LICENSE-FREE-SOFTWARE-FOUNDATION-LICENSE:CAPS"></a><span class="term"><code class="literal">GST_TAG_LICENSE_FREE_SOFTWARE_FOUNDATION_LICENSE</code></span></p></td>
 176 <td>this license was
 177     created by the Free Software Foundation (FSF)
 178 </td>
 179 </tr>
 180 </tbody>
 181 </table></div>
 182 <p class="since">Since 0.10.36</p>
 183 </div>
 184 <hr>
 185 <div class="refsect2">
 186 <a name="gst-tag-get-license-flags"></a><h3>gst_tag_get_license_flags ()</h3>
 187 <pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gsttaglicenses.html#GstTagLicenseFlags" title="enum GstTagLicenseFlags"><span class="returnvalue">GstTagLicenseFlags</span></a>  gst_tag_get_license_flags           (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);</pre>
 188 <p>
 189 Get the flags of a license, which describe most of the features of
 190 a license in their most general form.
 191 </p>
 192 <div class="variablelist"><table border="0">
 193 <col align="left" valign="top">
 194 <tbody>
 195 <tr>
 196 <td><p><span class="term"><em class="parameter"><code>license_ref</code></em> :</span></p></td>
 197 <td>a license reference string in form of a URI,
 198 e.g. "http://creativecommons.org/licenses/by-nc-nd/2.0/"</td>
 199 </tr>
 200 <tr>
 201 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 202 <td>the flags of the license, or 0 if the license is unknown</td>
 203 </tr>
 204 </tbody>
 205 </table></div>
 206 <p class="since">Since 0.10.36</p>
 207 </div>
 208 <hr>
 209 <div class="refsect2">
 210 <a name="gst-tag-get-license-nick"></a><h3>gst_tag_get_license_nick ()</h3>
 211 <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gst_tag_get_license_nick            (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);</pre>
 212 <p>
 213 Get the nick name of a license, which is a short (untranslated) string
 214 such as e.g. "CC BY-NC-ND 2.0 UK".
 215 </p>
 216 <div class="variablelist"><table border="0">
 217 <col align="left" valign="top">
 218 <tbody>
 219 <tr>
 220 <td><p><span class="term"><em class="parameter"><code>license_ref</code></em> :</span></p></td>
 221 <td>a license reference string in form of a URI,
 222 e.g. "http://creativecommons.org/licenses/by-nc-nd/2.0/"</td>
 223 </tr>
 224 <tr>
 225 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 226 <td>the nick name of the license, or NULL if the license is unknown</td>
 227 </tr>
 228 </tbody>
 229 </table></div>
 230 <p class="since">Since 0.10.36</p>
 231 </div>
 232 <hr>
 233 <div class="refsect2">
 234 <a name="gst-tag-get-license-title"></a><h3>gst_tag_get_license_title ()</h3>
 235 <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gst_tag_get_license_title           (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);</pre>
 236 <p>
 237 Get the title of a license, which is a short translated description
 238 of the license's features (generally not very pretty though).
 239 </p>
 240 <div class="variablelist"><table border="0">
 241 <col align="left" valign="top">
 242 <tbody>
 243 <tr>
 244 <td><p><span class="term"><em class="parameter"><code>license_ref</code></em> :</span></p></td>
 245 <td>a license reference string in form of a URI,
 246 e.g. "http://creativecommons.org/licenses/by-nc-nd/2.0/"</td>
 247 </tr>
 248 <tr>
 249 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 250 <td>the title of the license, or NULL if the license is unknown or
 251 no title is available.</td>
 252 </tr>
 253 </tbody>
 254 </table></div>
 255 <p class="since">Since 0.10.36</p>
 256 </div>
 257 <hr>
 258 <div class="refsect2">
 259 <a name="gst-tag-get-license-description"></a><h3>gst_tag_get_license_description ()</h3>
 260 <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gst_tag_get_license_description     (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);</pre>
 261 <p>
 262 Get the description of a license, which is a translated description
 263 of the license's main features.
 264 </p>
 265 <div class="variablelist"><table border="0">
 266 <col align="left" valign="top">
 267 <tbody>
 268 <tr>
 269 <td><p><span class="term"><em class="parameter"><code>license_ref</code></em> :</span></p></td>
 270 <td>a license reference string in form of a URI,
 271 e.g. "http://creativecommons.org/licenses/by-nc-nd/2.0/"</td>
 272 </tr>
 273 <tr>
 274 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 275 <td>the description of the license, or NULL if the license is unknown
 276 or a description is not available.</td>
 277 </tr>
 278 </tbody>
 279 </table></div>
 280 <p class="since">Since 0.10.36</p>
 281 </div>
 282 <hr>
 283 <div class="refsect2">
 284 <a name="gst-tag-get-license-jurisdiction"></a><h3>gst_tag_get_license_jurisdiction ()</h3>
 285 <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gst_tag_get_license_jurisdiction    (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);</pre>
 286 <p>
 287 Get the jurisdiction code of a license. This is usually a two-letter
 288 ISO 3166-1 alpha-2 code, but there is also the special case of Scotland,
 289 for which no code exists and which is thus represented as "scotland".
 290 </p>
 291 <p>
 292 Known jurisdictions: ar, at, au, be, bg, br, ca, ch, cl, cn, co, de,
 293 dk, es, fi, fr, hr, hu, il, in, it, jp, kr, mk, mt, mx, my, nl, pe, pl,
 294 pt, scotland, se, si, tw, uk, us, za.
 295 </p>
 296 <div class="variablelist"><table border="0">
 297 <col align="left" valign="top">
 298 <tbody>
 299 <tr>
 300 <td><p><span class="term"><em class="parameter"><code>license_ref</code></em> :</span></p></td>
 301 <td>a license reference string in form of a URI,
 302 e.g. "http://creativecommons.org/licenses/by-nc-nd/2.0/"</td>
 303 </tr>
 304 <tr>
 305 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 306 <td>the jurisdiction code of the license, or NULL if the license is
 307 unknown or is not specific to a particular jurisdiction.</td>
 308 </tr>
 309 </tbody>
 310 </table></div>
 311 <p class="since">Since 0.10.36</p>
 312 </div>
 313 <hr>
 314 <div class="refsect2">
 315 <a name="gst-tag-get-license-version"></a><h3>gst_tag_get_license_version ()</h3>
 316 <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *       gst_tag_get_license_version         (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *license_ref</code></em>);</pre>
 317 <p>
 318 Get the version of a license.
 319 </p>
 320 <div class="variablelist"><table border="0">
 321 <col align="left" valign="top">
 322 <tbody>
 323 <tr>
 324 <td><p><span class="term"><em class="parameter"><code>license_ref</code></em> :</span></p></td>
 325 <td>a license reference string in form of a URI,
 326 e.g. "http://creativecommons.org/licenses/by-nc-nd/2.0/"</td>
 327 </tr>
 328 <tr>
 329 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 330 <td>the version of the license, or NULL if the license is not known or
 331 has no version</td>
 332 </tr>
 333 </tbody>
 334 </table></div>
 335 <p class="since">Since 0.10.36</p>
 336 </div>
 337 <hr>
 338 <div class="refsect2">
 339 <a name="gst-tag-get-licenses"></a><h3>gst_tag_get_licenses ()</h3>
 340 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> **            gst_tag_get_licenses                (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 341 <p>
 342 Returns a list of known license references (in form of URIs). This is
 343 useful for UIs to build a list of available licenses for tagging purposes
 344 (e.g. to tag an audio track appropriately in a video or audio editor, or
 345 an image in a camera application).
 346 </p>
 347 <div class="variablelist"><table border="0">
 348 <col align="left" valign="top">
 349 <tbody><tr>
 350 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 351 <td>NULL-terminated array of license strings. Free with <a href="http://library.gnome.org/devel/glib/unstable/glib-String-Utility-Functions.html#g-strfreev"><code class="function">g_strfreev()</code></a>
 352 when no longer needed.</td>
 353 </tr></tbody>
 354 </table></div>
 355 <p class="since">Since 0.10.36</p>
 356 </div>
 357 </div>
 358 <div class="refsect1">
 359 <a name="gst-plugins-base-libs-gsttaglicenses.see-also"></a><h2>See Also</h2>
 360 <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstTagList.html#GstTagList"><span class="type">GstTagList</span></a>
 361 </div>
 362 </div>
 363 <div class="footer">
 364 <hr>
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