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Recipe: SD → HD with pillarbox - add note about deinterlacing

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Addresses https://github.com/amiaopensource/ffmprovisr/issues/380
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kfrn 2020-06-04 18:26:16 +12:00
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@ -628,6 +628,9 @@
<dt>-c:a copy</dt><dd>re-encodes using the same audio codec<br> <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> with <code>-an</code>.</dd> For silent videos you can replace <code>-c:a copy</code> with <code>-an</code>.</dd>
<dt><em>output_file</em></dt><dd>path, name and extension of the output file</dd> <dt><em>output_file</em></dt><dd>path, name and extension of the output file</dd>
<p>If your source is interlaced, you will want to deinterlace prior to scaling. In that case, your command would look like this:</p>
<p><code>ffmpeg -i <em>input_file</em> -c:v libx264 -filter:v "yadif, colormatrix=bt601:bt709, scale=1440:1080:flags=lanczos, pad=1920:1080:240:0" -c:a copy <em>output_file</em></code></p>
<p>See the <a href="#ntsc_to_h264">Interlaced NTSC to MP4 recipe</a> for a fuller explanation of the deinterlacing step.</p>
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