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<p>Hi Francois,</p>
<p>On 2016-10-25 17:18, Francois Cartegnie wrote:</p>
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<pre><code> Le 25/10/2016 à 06:56, Tristan Matthews a écrit :</code></pre>
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<pre><code> + /* Probe for XOR'd ID3 tag. */
+ if( memcmp( peek, "\x6B\x66\x11", 3 ) )
+ return VLC_EGENERIC;</code></pre>
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<pre><code> Being before any demuxer and packetizer,
expect high rate of false positives.</code></pre>
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<ul>
<li>Why would this cause a *“high rate of false positives”?</li>
</ul>
<p>It is equivalent to a <em>demuxer</em> probing for the same data, and as far as I could see when I looked up the <em>magic-bytes</em> used, there is no <em>file-format</em> that is publically documented that uses that marker.</p>
<p>I also ran <code>file</code> (the unix command) on a testfile, which came up blank (not being able to identify the format used).</p>
<p>It is also not possible to have an implicitly used (ie. automatically probed) <em>stream-filter</em> after a <em>packetizer</em> and/or <em>demuxer</em>.</p>
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<pre><code> Francois</code></pre>
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