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        <div dir="ltr" data-setdir="false">If I change<br><br><span><span style="color: rgb(38, 40, 42); font-family: Helvetica Neue, Helvetica, Arial, sans-serif;">pCodecCtx->sample_fmt = AV_SAMPLE_FMT_S16;<br></span></span><br>to<br><br><span><span style="color: rgb(38, 40, 42); font-family: Helvetica Neue, Helvetica, Arial, sans-serif;">pCodecCtx->sample_fmt = AV_SAMPLE_FMT_U8;<br></span></span><br>Then I get the following error:<br><br><span>[pcm_mulaw @ 0x2d33450] Specified sample_fmt is not supported.<br></span><br>Any idea? Thanks</div><div><br></div>
        
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                    On Friday, December 3, 2021, 06:15:54 PM EST, Bob Kirnum <bkirnum@gmail.com> wrote:
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                <div><div dir="ltr">G.711 is 8 bits, could be an issue. Also, not sure if you need to downsample to 8kHz manually or not. <br clear="none"><div class="ydp31fd7335yqt2475136755" id="ydp31fd7335yqtfd51216"><br clear="none">> On Dec 3, 2021, at 5:36 PM, Robert Smith via Libav-user <<a shape="rect" href="mailto:libav-user@ffmpeg.org" rel="nofollow" target="_blank">libav-user@ffmpeg.org</a>> wrote:<br clear="none">> <br clear="none">> pCodecCtx->sample_fmt = AV_SAMPLE_FMT_S16;</div><br clear="none">_______________________________________________<br clear="none">Libav-user mailing list<br clear="none"><a shape="rect" href="mailto:Libav-user@ffmpeg.org" rel="nofollow" target="_blank">Libav-user@ffmpeg.org</a><br clear="none"><a shape="rect" href="https://ffmpeg.org/mailman/listinfo/libav-user" rel="nofollow" target="_blank">https://ffmpeg.org/mailman/listinfo/libav-user</a><br clear="none"><br clear="none">To unsubscribe, visit link above, or email<br clear="none"><a shape="rect" href="mailto:libav-user-request@ffmpeg.org" rel="nofollow" target="_blank">libav-user-request@ffmpeg.org</a> with subject "unsubscribe".<div class="ydp31fd7335yqt2475136755" id="ydp31fd7335yqtfd92186"><br clear="none"></div></div></div>
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