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Added framemd5 for audio.

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Peter B
2017-04-13 10:35:42 +02:00
parent db202300e4
commit 4d2d5c7c81
1 changed files with 34 additions and 3 deletions
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37
index.html
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@@ -1149,12 +1149,12 @@ foreach ($file in $inputfiles) {
<!-- ends batch processing (Windows) -->
<!-- Create frame md5s -->
<span data-toggle="modal" data-target="#create_frame_md5s"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Create an MD5 checksum per video frame">Create MD5 checksums</button></span>
<div id="create_frame_md5s" class="modal fade" tabindex="-1" role="dialog">
<span data-toggle="modal" data-target="#create_frame_md5s_v"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Create an MD5 checksum per video frame">Create MD5 checksums (video frames)</button></span>
<div id="create_frame_md5s_v" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="well">
<h3>Create MD5 checksums</h3>
<h3>Create MD5 checksums (video frames)</h3>
<p><code>ffmpeg -i <i>input_file</i> -f framemd5 -an <i>output_file</i></code></p>
<p>This will create an MD5 checksum per video frame.</p>
<dl>
@@ -1172,6 +1172,37 @@ foreach ($file in $inputfiles) {
</div>
<!-- ends Create frame md5s -->
<!-- Create frame md5s (audio) -->
<span data-toggle="modal" data-target="#create_frame_md5s_a"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Create MD5 checksums for audio samples">Create MD5 checksums (audio samples)</button></span>
<div id="create_frame_md5s_a" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="well">
<h3>Create MD5 checksums (audio samples)</h3>
<p><code>ffmpeg -i <i>input_file</i> -filter_complex "asetnsamples=<i>n=48000</i>" -f framemd5 -vn <i>output_file</i></code></p>
<p>This will create an MD5 checksum for each group of 48000 audio samples.<br> The number of samples per group can be set arbitrarily, but it's good practice to match the samplerate of the media file (so you will get one checksum per second).</p>
<p>
Examples for other samplerates:<br>
<ul>
<li>44.1 kHz: "asetnsamples=n=44100"</li>
<li>96 kHz: "asetnsamples=n=96000"</li>
</ul>
</p>
<dl>
<dt>ffmpeg</dt><dd>starts the command</dd>
<dt>-i <i>input_file</i></dt><dd>path, name and extension of the input file</dd>
<dt>-f framemd5</dt><dd>library used to calculate the MD5 checksums</dd>
<dt>-vn</dt><dd>ignores the video stream (video no)</dd>
<dt><i>output_file</i></dt><dd>path, name and extension of the output file</dd>
</dl>
<p>You may verify an MD5 checksum file created this way by using a <a href="check_framemd5.sh" target="_blank">Bash script</a>.</p>
<p class="link"></p>
</div>
</div>
</div>
</div>
<!-- ends Create frame md5s (audio) -->
<!-- Pull specs -->
<span data-toggle="modal" data-target="#pull_specs"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Pull specs from video file">Pull specs</button></span>
<div id="pull_specs" class="modal fade" tabindex="-1" role="dialog">