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<p class="MsoNormal">Hi<o:p></o:p></p>
<p class="MsoNormal"><br>
I have Opus working successfully for a long time on an STM32F407 with I2S audio from a Wolfson codec.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The latest Opus release is in use.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Now I wish to use two independent codecs.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So I duplicated all the initialisation routines with separate encoders and decoders and tried it.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The two encoders seem to work together with the first decoder but the second decoder does not.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My impression is that there is some interaction between the two encoders.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When using the second decoder there is quite often a Hard Fault PRECISERR in celt_decoder.c at
<span style="color:black;background:white">opus_custom_decoder_ctl() <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;background:white"><o:p> </o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#7F0055">case</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> CELT_SET_END_BAND_REQUEST:<o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> {<o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#005032">opus_int32</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> value = va_arg(ap,
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#005032">opus_int32</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">);<o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;background:#DBEBCC">
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#7F0055;background:#DBEBCC">if</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;background:#DBEBCC"> (value<1 || value>st-></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#0000C0;background:#DBEBCC">mode</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;background:#DBEBCC">-></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#0000C0;background:#DBEBCC">nbEBands</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black;background:#DBEBCC">)
<<< here</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#7F0055">goto</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> bad_arg;<o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> st-></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#0000C0">end</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
= value;<o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> }<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But the second decoder returns <span style="font-size:10.0pt;color:black;background:white">
OPUS_INTERNAL_ERROR </span><span style="color:black;background:white">quite often too.</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would like two independent codecs as each channel has to be sent to different places.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any ideas of how to do it otherwise would help.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The project is written in STM32CubeIDE.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can put the project in Dropbox – I do not know if links here get scrubbed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Andy.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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