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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>interlace: GStreamer Bad Plugins 1.0 Plugins Reference Manual</title>
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<a href="#gst-plugins-bad-plugins-interlace.description" class="shortcut">Description</a></span>
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<a name="gst-plugins-bad-plugins-interlace"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-bad-plugins-interlace.top_of_page"></a>interlace</span></h2>
<p>interlace</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
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<div class="refsect1">
<a name="gst-plugins-bad-plugins-interlace.description"></a><h2>Description</h2>
<p>The interlace element takes a non-interlaced raw video stream as input,
creates fields out of each frame, then combines fields into interlaced
frames to output as an interlaced video stream. It can also produce
telecined streams from progressive input.</p>
<div class="refsect3">
<a name="id-1.2.118.3.3"></a><h4>Example launch line</h4>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v videotestsrc pattern<span class="gtkdoc opt">=</span>ball <span class="gtkdoc opt">!</span> interlace <span class="gtkdoc opt">!</span> xvimagesink</pre></td>
</tr>
</tbody>
</table>
</div>
<p>
This pipeline illustrates the combing effects caused by displaying
two interlaced fields as one progressive frame.</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v filesrc location<span class="gtkdoc opt">=/</span>path<span class="gtkdoc opt">/</span>to<span class="gtkdoc opt">/</span>file <span class="gtkdoc opt">!</span> decodebin <span class="gtkdoc opt">!</span> videorate <span class="gtkdoc opt">!</span>
videoscale <span class="gtkdoc opt">!</span> video<span class="gtkdoc opt">/</span>x<span class="gtkdoc opt">-</span>raw<span class="gtkdoc opt">,</span>format<span class="gtkdoc opt">=</span>\<span class="gtkdoc opt">(</span>string\<span class="gtkdoc opt">)</span>I420<span class="gtkdoc opt">,</span>width<span class="gtkdoc opt">=</span><span class="number">720</span><span class="gtkdoc opt">,</span>height<span class="gtkdoc opt">=</span><span class="number">480</span><span class="gtkdoc opt">,</span>
framerate<span class="gtkdoc opt">=</span><span class="number">60000</span><span class="gtkdoc opt">/</span><span class="number">1001</span><span class="gtkdoc opt">,</span>pixel<span class="gtkdoc opt">-</span>aspect<span class="gtkdoc opt">-</span>ratio<span class="gtkdoc opt">=</span><span class="number">11</span><span class="gtkdoc opt">/</span><span class="number">10</span> <span class="gtkdoc opt">!</span>
interlace top<span class="gtkdoc opt">-</span>field<span class="gtkdoc opt">-</span>first<span class="gtkdoc opt">=</span><span class="keyword">false</span> <span class="gtkdoc opt">!</span> autovideosink</pre></td>
</tr>
</tbody>
</table>
</div>
<p>
This pipeline converts a progressive video stream into an interlaced
stream suitable for standard definition NTSC.</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v videotestsrc pattern<span class="gtkdoc opt">=</span>ball <span class="gtkdoc opt">!</span> video<span class="gtkdoc opt">/</span>x<span class="gtkdoc opt">-</span>raw<span class="gtkdoc opt">,</span>
format<span class="gtkdoc opt">=</span>\<span class="gtkdoc opt">(</span>string\<span class="gtkdoc opt">)</span>I420<span class="gtkdoc opt">,</span>width<span class="gtkdoc opt">=</span><span class="number">720</span><span class="gtkdoc opt">,</span>height<span class="gtkdoc opt">=</span><span class="number">480</span><span class="gtkdoc opt">,</span>framerate<span class="gtkdoc opt">=</span><span class="number">24000</span><span class="gtkdoc opt">/</span><span class="number">1001</span><span class="gtkdoc opt">,</span>
pixel<span class="gtkdoc opt">-</span>aspect<span class="gtkdoc opt">-</span>ratio<span class="gtkdoc opt">=</span><span class="number">11</span><span class="gtkdoc opt">/</span><span class="number">10</span> <span class="gtkdoc opt">!</span> interlace <span class="gtkdoc opt">!</span>
autovideosink</pre></td>
</tr>
</tbody>
</table>
</div>
<p>
This pipeline converts a 24 frames per second progressive film stream into a
30000/1001 2:3:2:3... pattern telecined stream suitable for displaying film
content on NTSC.</p>
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.118.3.4.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-bad-plugins-plugin-interlace.html#plugin-interlace">interlace</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>David Schleef <ds@schleef.org></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.118.3.4.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string){ AYUV, YUY2, UYVY, I420, YV12, Y42B, Y444, NV12, NV21 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string){ AYUV, YUY2, UYVY, I420, YV12, Y42B, Y444, NV12, NV21 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], interlace-mode=(string){ interleaved, mixed }</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-interlace.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-interlace.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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