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Le 2022-03-24 à 10 h 54, Andrew Sonzogni a écrit :<br>
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cite="mid:da869ad37685998db9f1232095c53d85@mail.gmail.com">
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi
Marc,</span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"> </span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Thanks for the quick reply.</span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Then it’s not possible to mix those packets
before decoding them ?</span></p>
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I don't think it's possible, but I'm not a codec expert, just a
simple user.<br>
<br>
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cite="mid:da869ad37685998db9f1232095c53d85@mail.gmail.com">
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Because summing after Opus would mean 3-4
decode every 40ms (frame size) and 3-4 queue of 1280o msg…</span></p>
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I think that the latency would be a little bit more than 80ms in the
worst cases.<br>
I could be wrong...<br>
<br>
Marc<br>
<br>
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cite="mid:da869ad37685998db9f1232095c53d85@mail.gmail.com">
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Best regards,</span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Andrew</span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
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<p class="MsoNormal"><b>De :</b> opus <<a
href="mailto:opus-bounces@xiph.org"
moz-do-not-send="true" class="moz-txt-link-freetext">opus-bounces@xiph.org</a>>
<b>De la part de</b> Marc Lavallée<br>
<b>Envoyé :</b> jeudi 24 mars 2022 15:23<br>
<b>À :</b> <a href="mailto:opus@xiph.org"
moz-do-not-send="true" class="moz-txt-link-freetext">opus@xiph.org</a><br>
<b>Objet :</b> Re: [opus] Antw: [EXT] Opus merging streams</p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi Andrew,<br>
<br>
I think you'd have to decode each packet independently, then
sum the results, making sure that packets (from different
sources) all have the same number of samples.<br>
<br>
Marc</p>
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<p class="MsoNormal">Le 2022-03-24 à 10 h 14, Andrew Sonzogni
a écrit :</p>
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<pre>Hello,</pre>
<pre> </pre>
<pre>Yes, I mean mix multiple streams.</pre>
<pre> </pre>
<pre>Best regards,</pre>
<pre>Andrew Sonzogni</pre>
<pre> </pre>
<pre>-----Message d'origine-----</pre>
<pre>De : Ulrich Windl <a href="mailto:Ulrich.Windl@rz.uni-regensburg.de" moz-do-not-send="true"><Ulrich.Windl@rz.uni-regensburg.de></a></pre>
<pre>Envoyé : jeudi 24 mars 2022 15:00</pre>
<pre>À : <a href="mailto:andrew@safehear.fr" moz-do-not-send="true" class="moz-txt-link-freetext">andrew@safehear.fr</a>; <a href="mailto:opus@xiph.org" moz-do-not-send="true" class="moz-txt-link-freetext">opus@xiph.org</a></pre>
<pre>Objet : Antw: [EXT] [opus] Opus merging streams</pre>
<pre> </pre>
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<pre>Andrew Sonzogni <a href="mailto:andrew@safehear.fr" moz-do-not-send="true"><andrew@safehear.fr></a> schrieb am 24.03.2022 um 14:46</pre>
<pre>in</pre>
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<pre>Nachricht <a href="mailto:592e07eaa0e866e10543cf887948874d@mail.gmail.com" moz-do-not-send="true"><592e07eaa0e866e10543cf887948874d@mail.gmail.com></a>:</pre>
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<pre>Hello !</pre>
<pre> </pre>
<pre> </pre>
<pre> </pre>
<pre>I have a question. I'm trying to use Opus on an embedded device which</pre>
<pre>communicate with several other devices with the same software.</pre>
<pre> </pre>
<pre>I wanted to know if it's possible to merge Opus packets from different</pre>
<pre>sources and then decode this merged packet through a normal opus_decode.</pre>
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<pre> </pre>
<pre>"merge" means "concatenate"? Or "mix"?</pre>
<pre> </pre>
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<pre> </pre>
<pre> </pre>
<pre> </pre>
<pre>I receive in real time 3 different streams of 40ms opus packets. As it</pre>
<pre>would be consuming too much CPU if I decode each packets and then sum</pre>
<pre>them together, I would like to decode them together.</pre>
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<pre> </pre>
<pre>"sum" sounds like "mix", right?</pre>
<pre> </pre>
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<pre> </pre>
<pre> </pre>
<pre> </pre>
<pre>Best regards,</pre>
<pre> </pre>
<pre>Andrew Sonzogni</pre>
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<pre>_______________________________________________</pre>
<pre>opus mailing list</pre>
<pre><a href="mailto:opus@xiph.org" moz-do-not-send="true" class="moz-txt-link-freetext">opus@xiph.org</a></pre>
<pre><a href="http://lists.xiph.org/mailman/listinfo/opus" moz-do-not-send="true" class="moz-txt-link-freetext">http://lists.xiph.org/mailman/listinfo/opus</a></pre>
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