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adds way to intentionally break a DV file

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Ashley Blewer 2017-03-27 16:00:44 -04:00
parent bd0ac73d78
commit dcb74e8da6
1 changed files with 23 additions and 0 deletions
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@ -1408,6 +1408,29 @@ foreach ($file in $inputfiles) {
</div>
<!-- ends Play VGA SMPTE bars -->
<!-- Broken DV -->
<span data-toggle="modal" data-target="#broken_dv"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Make a broken DV file from a perfectly good one">Broken DV</button></span>
<div id="broken_dv" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="well">
<h3>Makes a broken DV test file</h3>
<p>Modifies an existing, functioning DV file and intentionally breaks it for testing purposes.</p>
<p><code>ffmpeg -i <i>input_file</i>.dv -bsf noise -c copy <i>output_file</i>.dv</code></p>
<dl>
<dt>ffmpeg</dt><dd>starts the command</dd>
<dt>-i <i>input_file</i>.dv</dt><dd>takes in a normal DV file</dd>
<dt>-bsf noise</dt><dd>sets bitstream filters for all to 'noise.' The <a href="https://www.ffmpeg.org/ffmpeg-bitstream-filters.html#noise">noise filter</a> intentionally damages the contents of packets without damaging the container.</dd>
<dt>-c copy</dt><dd>use stream copy mode to re-mux instead of re-encode</dd>
<dt><i>output_file</i>.dv</dt><dd>path, name and extension of the output DV file.</dd>
</dl>
<p class="link"></p>
</div>
</div>
</div>
</div>
<!-- ends Broken DV -->
<!-- Sine wave -->
<span data-toggle="modal" data-target="#sine_wave"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Generate a test audio file playing a sine wave">Sine wave</button></span>
<div id="sine_wave" class="modal fade" tabindex="-1" role="dialog">