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Added AV sync repair option (aresample/async)

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Peter B 2017-04-13 14:43:35 +02:00
parent 117ebf506d
commit 388b107a3f
1 changed files with 29 additions and 1 deletions
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@ -1941,9 +1941,37 @@ e.g.: <code>ffmpeg -f concat -safe 0 -i mylist.txt -c copy <i>output_file</i></c
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<h4>Repair</h4>
<!-- Fix A/V async 1 -->
<span data-toggle="modal" data-target="#avsync_aresample"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Fix A/V sync issues by resampling audio">Fix AV Sync: Resample audio</button></span>
<div id="avsync_aresample" class="modal fade" tabindex="-1" role="dialog">
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<h3>Fix AV Sync: Resample audio</h3>
<p><code>ffmpeg -i <i>input_file</i> -c:v copy -c:a pcm_s16le -af "aresample=async=1000" <i>output_file</i></code></p>
<dl>
<dt>ffmpeg</dt><dd>starts the command</dd>
<dt><i>input_file</i></dt><dd>path, name and extension of the input file</dd>
<dt>-c:v copy</dt><dd>Copy all mapped video streams.</dd>
<dt>-c:a pcm_s16le</dt><dd>Tells ffmpeg to encode the audio stream in 16-bit linear PCM (<a href="https://en.wikipedia.org/wiki/Endianness#Little-endian">little endian</a>)</dd>
<dt>-af "aresample=async=1000"</dt><dd>Stretch/squeezes samples to given timestamps, with maximum of 1000 samples per second compensation <a href="https://ffmpeg.org/ffmpeg-filters.html#aresample-1" target="_blank">[more]</a></dd>
<dt><i>output_file</i></dt><dd>path, name and extension of the output file. Try different file extensions such as mkv, mov, mp4, or avi.</dd>
</dl>
<p class="link"></p>
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<!-- sample example -->
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