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  20. <th width="100%" align="center">GStreamer Good Plugins 0.10 Plugins Reference Manual</th>
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  24. <a href="#gst-plugins-good-plugins-smpte.synopsis" class="shortcut">Top</a>
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  25.                    | 
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  26.                   <a href="#gst-plugins-good-plugins-smpte.description" class="shortcut">Description</a>
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  27.                    | 
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  28.                   <a href="#gst-plugins-good-plugins-smpte.object-hierarchy" class="shortcut">Object Hierarchy</a>
    29. 

  29.                    | 
    30. 

  30.                   <a href="#gst-plugins-good-plugins-smpte.properties" class="shortcut">Properties</a>
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    33. 

  33. <div class="refentry">
    34. 

  34. <a name="gst-plugins-good-plugins-smpte"></a><div class="titlepage"></div>
    35. 

  35. <div class="refnamediv"><table width="100%"><tr>
    36. 

  36. <td valign="top">
    37. 

  37. <h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-smpte.top_of_page"></a>smpte</span></h2>
    38. 

  38. <p>smpte — Apply the standard SMPTE transitions on video images</p>
    39. 

  39. </td>
    40. 

  40. <td valign="top" align="right"></td>
    41. 

  41. </tr></table></div>
    42. 

  42. <div class="refsynopsisdiv">
    43. 

  43. <a name="gst-plugins-good-plugins-smpte.synopsis"></a><h2>Synopsis</h2>
    44. 

  44. <a name="GstSMPTE"></a><pre class="synopsis">struct              <a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE-struct" title="struct GstSMPTE">GstSMPTE</a>;
    45. 

  45. </pre>
    46. 

  46. </div>
    47. 

  47. <div class="refsect1">
    48. 

  48. <a name="gst-plugins-good-plugins-smpte.object-hierarchy"></a><h2>Object Hierarchy</h2>
    49. 

  49. <pre class="synopsis">
    50. 

  50.   <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
    51. 

  51.    +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
    52. 

  52.          +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
    53. 

  53.                +----GstSMPTE
    54. 

  54. </pre>
    55. 

  55. </div>
    56. 

  56. <div class="refsect1">
    57. 

  57. <a name="gst-plugins-good-plugins-smpte.properties"></a><h2>Properties</h2>
    58. 

  58. <pre class="synopsis">
    59. 

  59.   "<a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE--border" title='The "border" property'>border</a>"                   <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
    60. 

  60.   "<a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE--depth" title='The "depth" property'>depth</a>"                    <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
    61. 

  61.   "<a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE--fps" title='The "fps" property'>fps</a>"                      <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write
    62. 

  62.   "<a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE--type" title='The "type" property'>type</a>"                     <span class="type">GstSMPTETransitionType</span>  : Read / Write
    63. 

  63.   "<a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE--duration" title='The "duration" property'>duration</a>"                 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a>               : Read / Write
    64. 

  64.   "<a class="link" href="gst-plugins-good-plugins-smpte.html#GstSMPTE--invert" title='The "invert" property'>invert</a>"                   <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
    65. 

  65. </pre>
    66. 

  66. </div>
    67. 

  67. <div class="refsect1">
    68. 

  68. <a name="gst-plugins-good-plugins-smpte.description"></a><h2>Description</h2>
    69. 

  69. <p>
    70. 

  70. smpte can accept I420 video streams with the same width, height and
    71. 

  71. framerate. The two incomming buffers are blended together using an effect
    72. 

  72. specific alpha mask. 
    73. 

  73. </p>
    74. 

  74. <p>
    75. 

  75. The <span class="type">"depth"</span> property defines the presision in bits of the mask. A
    76. 

  76. higher presision will create a mask with smoother gradients in order to avoid
    77. 

  77. banding.
    78. 

  78. </p>
    79. 

  79. <p>
    80. 

  80. </p>
    81. 

  81. <div class="refsect2">
    82. 

  82. <a name="idp18824368"></a><h3>Sample pipelines</h3>
    83. 

  83. <div class="informalexample">
    84. 

  84.   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    85. 

  85.     <tbody>
    86. 

  86.       <tr>
    87. 

  87.         <td class="listing_lines" align="right"><pre>1</pre></td>
    88. 

  88.         <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch <span class="gtkdoc opt">-</span>v videotestsrc pattern<span class="gtkdoc opt">=</span><span class="number">1</span> <span class="gtkdoc opt">!</span> smpte name<span class="gtkdoc opt">=</span>s border<span class="gtkdoc opt">=</span><span class="number">20000</span> type<span class="gtkdoc opt">=</span><span class="number">234</span> duration<span class="gtkdoc opt">=</span><span class="number">2000000000</span> <span class="gtkdoc opt">!</span> ffmpegcolorspace <span class="gtkdoc opt">!</span> ximagesink videotestsrc <span class="gtkdoc opt">!</span> s<span class="gtkdoc opt">.</span></pre></td>
    89. 

  89.       </tr>
    90. 

  90.     </tbody>
    91. 

  91.   </table>
    92. 

  92. </div>
    93. 

  93.  A pipeline to demonstrate the smpte transition.
    94. 

  94. It shows a pinwheel transition a from a snow videotestsrc to an smpte
    95. 

  95. pattern videotestsrc. The transition will take 2 seconds to complete. The
    96. 

  96. edges of the transition are smoothed with a 20000 big border.
    97. 

  97. </div>
    98. 

  98. <p>
    99. 

  99. </p>
    100. 

  100. <div class="refsynopsisdiv">
    101. 

  101. <h2>Synopsis</h2>
    102. 

  102. <div class="refsect2">
    103. 

  103. <a name="idp21054496"></a><h3>Element Information</h3>
    104. 

  104. <div class="variablelist"><table border="0">
    105. 

  105. <col align="left" valign="top">
    106. 

  106. <tbody>
    107. 

  107. <tr>
    108. 

  108. <td><p><span class="term">plugin</span></p></td>
    109. 

  109. <td>
    110. 

  110.             <a class="link" href="gst-plugins-good-plugins-plugin-smpte.html#plugin-smpte">smpte</a>
    111. 

  111.           </td>
    112. 

  112. </tr>
    113. 

  113. <tr>
    114. 

  114. <td><p><span class="term">author</span></p></td>
    115. 

  115. <td>Wim Taymans &lt;wim.taymans@chello.be&gt;</td>
    116. 

  116. </tr>
    117. 

  117. <tr>
    118. 

  118. <td><p><span class="term">class</span></p></td>
    119. 

  119. <td>Filter/Editor/Video</td>
    120. 

  120. </tr>
    121. 

  121. </tbody>
    122. 

  122. </table></div>
    123. 

  123. </div>
    124. 

  124. <hr>
    125. 

  125. <div class="refsect2">
    126. 

  126. <a name="idp19797456"></a><h3>Element Pads</h3>
    127. 

  127. <div class="variablelist"><table border="0">
    128. 

  128. <col align="left" valign="top">
    129. 

  129. <tbody>
    130. 

  130. <tr>
    131. 

  131. <td><p><span class="term">name</span></p></td>
    132. 

  132. <td>sink1</td>
    133. 

  133. </tr>
    134. 

  134. <tr>
    135. 

  135. <td><p><span class="term">direction</span></p></td>
    136. 

  136. <td>sink</td>
    137. 

  137. </tr>
    138. 

  138. <tr>
    139. 

  139. <td><p><span class="term">presence</span></p></td>
    140. 

  140. <td>always</td>
    141. 

  141. </tr>
    142. 

  142. <tr>
    143. 

  143. <td><p><span class="term">details</span></p></td>
    144. 

  144. <td>video/x-raw-yuv, format=(fourcc)I420, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
    145. 

  145. </tr>
    146. 

  146. </tbody>
    147. 

  147. </table></div>
    148. 

  148. <div class="variablelist"><table border="0">
    149. 

  149. <col align="left" valign="top">
    150. 

  150. <tbody>
    151. 

  151. <tr>
    152. 

  152. <td><p><span class="term">name</span></p></td>
    153. 

  153. <td>sink2</td>
    154. 

  154. </tr>
    155. 

  155. <tr>
    156. 

  156. <td><p><span class="term">direction</span></p></td>
    157. 

  157. <td>sink</td>
    158. 

  158. </tr>
    159. 

  159. <tr>
    160. 

  160. <td><p><span class="term">presence</span></p></td>
    161. 

  161. <td>always</td>
    162. 

  162. </tr>
    163. 

  163. <tr>
    164. 

  164. <td><p><span class="term">details</span></p></td>
    165. 

  165. <td>video/x-raw-yuv, format=(fourcc)I420, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
    166. 

  166. </tr>
    167. 

  167. </tbody>
    168. 

  168. </table></div>
    169. 

  169. <div class="variablelist"><table border="0">
    170. 

  170. <col align="left" valign="top">
    171. 

  171. <tbody>
    172. 

  172. <tr>
    173. 

  173. <td><p><span class="term">name</span></p></td>
    174. 

  174. <td>src</td>
    175. 

  175. </tr>
    176. 

  176. <tr>
    177. 

  177. <td><p><span class="term">direction</span></p></td>
    178. 

  178. <td>source</td>
    179. 

  179. </tr>
    180. 

  180. <tr>
    181. 

  181. <td><p><span class="term">presence</span></p></td>
    182. 

  182. <td>always</td>
    183. 

  183. </tr>
    184. 

  184. <tr>
    185. 

  185. <td><p><span class="term">details</span></p></td>
    186. 

  186. <td>video/x-raw-yuv, format=(fourcc)I420, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
    187. 

  187. </tr>
    188. 

  188. </tbody>
    189. 

  189. </table></div>
    190. 

  190. </div>
    191. 

  191. </div>
    192. 

  192. <p>
    193. 

  193. </p>
    194. 

  194. </div>
    195. 

  195. <div class="refsect1">
    196. 

  196. <a name="gst-plugins-good-plugins-smpte.details"></a><h2>Details</h2>
    197. 

  197. <div class="refsect2">
    198. 

  198. <a name="GstSMPTE-struct"></a><h3>struct GstSMPTE</h3>
    199. 

  199. <pre class="programlisting">struct GstSMPTE;</pre>
    200. 

  200. <p>
    201. 

  201. </p>
    202. 

  202. </div>
    203. 

  203. </div>
    204. 

  204. <div class="refsect1">
    205. 

  205. <a name="gst-plugins-good-plugins-smpte.property-details"></a><h2>Property Details</h2>
    206. 

  206. <div class="refsect2">
    207. 

  207. <a name="GstSMPTE--border"></a><h3>The <code class="literal">"border"</code> property</h3>
    208. 

  208. <pre class="programlisting">  "border"                   <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
    209. 

  209. <p>The border width of the transition.</p>
    210. 

  210. <p>Allowed values: &gt;= 0</p>
    211. 

  211. <p>Default value: 0</p>
    212. 

  212. </div>
    213. 

  213. <hr>
    214. 

  214. <div class="refsect2">
    215. 

  215. <a name="GstSMPTE--depth"></a><h3>The <code class="literal">"depth"</code> property</h3>
    216. 

  216. <pre class="programlisting">  "depth"                    <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
    217. 

  217. <p>Depth of the mask in bits.</p>
    218. 

  218. <p>Allowed values: [1,24]</p>
    219. 

  219. <p>Default value: 16</p>
    220. 

  220. </div>
    221. 

  221. <hr>
    222. 

  222. <div class="refsect2">
    223. 

  223. <a name="GstSMPTE--fps"></a><h3>The <code class="literal">"fps"</code> property</h3>
    224. 

  224. <pre class="programlisting">  "fps"                      <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write</pre>
    225. 

  225. <p>Frames per second if no input files are given (deprecated).</p>
    226. 

  226. <p>Allowed values: &gt;= 0</p>
    227. 

  227. <p>Default value: 0</p>
    228. 

  228. </div>
    229. 

  229. <hr>
    230. 

  230. <div class="refsect2">
    231. 

  231. <a name="GstSMPTE--type"></a><h3>The <code class="literal">"type"</code> property</h3>
    232. 

  232. <pre class="programlisting">  "type"                     <span class="type">GstSMPTETransitionType</span>  : Read / Write</pre>
    233. 

  233. <p>The type of transition to use.</p>
    234. 

  234. <p>Default value: A bar moves from left to right</p>
    235. 

  235. </div>
    236. 

  236. <hr>
    237. 

  237. <div class="refsect2">
    238. 

  238. <a name="GstSMPTE--duration"></a><h3>The <code class="literal">"duration"</code> property</h3>
    239. 

  239. <pre class="programlisting">  "duration"                 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a>               : Read / Write</pre>
    240. 

  240. <p>Duration of the transition effect in nanoseconds.</p>
    241. 

  241. <p>Default value: 1000000000</p>
    242. 

  242. </div>
    243. 

  243. <hr>
    244. 

  244. <div class="refsect2">
    245. 

  245. <a name="GstSMPTE--invert"></a><h3>The <code class="literal">"invert"</code> property</h3>
    246. 

  246. <pre class="programlisting">  "invert"                   <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
    247. 

  247. <p>Invert transition mask.</p>
    248. 

  248. <p>Default value: FALSE</p>
    249. 

  249. </div>
    250. 

  250. </div>
    251. 

  251. </div>
    252. 

  252. <div class="footer">
    253. 

  253. <hr>
    254. 

  254.           Generated by GTK-Doc V1.17</div>
    255. 

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    257.