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Reto Kromer 2016-09-19 18:47:31 +02:00 committed by GitHub
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<div class="modal-content">
<div class="well">
<h3>Transform SD into HD with pillarbox</h3>
<p>Transform a SD video file with 4:3 aspect ratio into an HD video file with 16:9 aspect ration by correct pillarboxing.</p>
<p>Transform a SD video file with 4:3 aspect ratio into an HD video file with 16:9 aspect ratio by correct pillarboxing.</p>
<p><code>ffmpeg -i <i>input_file</i> -filter:v "colormatrix=bt601:bt709, scale=1440:1080:flags=lanczos, pad=1920:1080:240:0" -c:a copy <i>output_file</i></code></p>
<dl>
<dt>ffmpeg</dt><dd>starts the command</dd>
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<li>The padding filter (<code>pad=1920:1080:240:0</code>) completes the transformation from SD to HD.</li>
</ol></dd>
<dt>-c:a copy</dt><dd>re-encodes using the same audio codec<br/>
For silent videos you can replace <code>-c:a copy</code> by <code>-an</code>.</dd>
For silent videos you can replace <code>-c:a copy</code> with <code>-an</code>.</dd>
<dt><i>output_file</i></dt><dd>path, name and extension of the output file</dd>
</dl>
<p class="link"></p>