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    <div class="moz-cite-prefix">El 6/11/21 a las 23:35, Robert Smith
      via Libav-user escribió:<br>
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    <blockquote type="cite"
      cite="mid:1535897495.1964012.1636252505312@mail.yahoo.com">
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        Helvetica, Arial, sans-serif;font-size:16px;">
        <div dir="ltr" data-setdir="false"><span><span style="color:
              rgb(35, 38, 41); font-family: -apple-system,
              BlinkMacSystemFont, "Segoe UI", "Liberation
              Sans", sans-serif; font-size: 15px;">
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              <div dir="ltr" data-setdir="false">If I skip setting
                setting <span><span style="color: rgb(35, 38, 41);
                    font-family: -apple-system, BlinkMacSystemFont,
                    "Segoe UI", "Liberation Sans",
                    sans-serif; font-size: 15px;">sample format option </span></span>the
                <span>swr_init display warning</span><br>
                <br>
                <div>
                  <div>[SWR @ 0x2c7b950] Requested sample format (null)
                    is not supported internally, only float & S16 is
                    supported</div>
                  <div dir="ltr" data-setdir="false"><br>
                    and eventually <span><span style="color: rgb(35, 38,
                        41); font-family: -apple-system,
                        BlinkMacSystemFont, "Segoe UI",
                        "Liberation Sans", sans-serif;
                        font-size: 15px;">swr_convert fails on
                        assertion:</span></span><br>
                    Assertion a->planar failed at
                    libswresample/swresample.c:284<br>
                    <br>
                    Could you advise how to resolve this issue? Thanks</div>
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    <p>See if there's a swr_alloc_set_opts function in your libav.  If
      there is, you can pass all the flags like:<br>
      <br>
        swr_ctx  = swr_alloc_set_opts(NULL, out_ch_layout,<br>
                                                     out_sample_fmt, 
      out_sample_rate,<br>
                                                     in_ch_layout, 
      in_sample_fmt,<br>
                                                     in_sample_rate,<br>
                                                     0, NULL);</p>
    <p>Hope that helps!<br>
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