<div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello, I'm trying to run these pipelines: 1:  gst-launch -v alsasrc ! speexenc ! rtpspeexpay ! udpsink 2:  GST_DEBUG=2 gst-launch -v udpsrc caps="application/x-rtp, media=(string)audio, payload=(int)110, clock-rate=(int)44100, encoding-name=(string)SPEEX, encoding-params=(string)2" ! rtpspeexdepay ! speexdec ! alsasink But there is a problem at the second pipe: 0:00:00.083932000 12113 0x804e070 ERROR         GST_PIPELINE ./grammar.y:462:gst_parse_perform_link: it wasn't possible link udpsrc0 a rtpspeexdepay0 ATENÇÃO: conexão errônea: não foi possível ligar udpsrc0 a rtpspeexdepay0 Any one can help me? Here the caps of the first pipe: /pipeline0/alsasrc0.src: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(int)2 A conexão está viva e não necessita PREROLL ... Deixando a conexão em PLAYING ... New clock: GstAudioSrcClock /pipeline0/speexenc0: last-message = "Warning: speex is optimized for 8, 16 and 32 KHz" /pipeline0/speexenc0.sink: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(int)2 /pipeline0/speexenc0.src: caps = audio/x-speex, streamheader=(buffer)< 5370656578202020312e312e31320000000000000000000000000000010000005000000044ac0000020000000400000002000000ffffffff800200000000000001000000000000000000000000000000, 1f000000456e636f6465642077697468204753747265616d6572205370656578656e630000000001 > /pipeline0/rtpspeexpay0.sink: caps = audio/x-speex, streamheader=(buffer)< 5370656578202020312e312e31320000000000000000000000000000010000005000000044ac0000020000000400000002000000ffffffff800200000000000001000000000000000000000000000000, 1f000000456e636f6465642077697468204753747265616d6572205370656578656e630000000001 > /pipeline0/rtpspeexpay0.src: caps = application/x-rtp, media=(string)audio, payload=(int)110, clock-rate=(int)44100, encoding-name=(string)SPEEX, ssrc=(guint)3347462463, clock-base=(guint)269400180, seqnum-base=(guint)15205, encoding-params=(string)2 /pipeline0/udpsink0.sink: caps = application/x-rtp, media=(string)audio, payload=(int)110, clock-rate=(int)44100, encoding-name=(string)SPEEX, ssrc=(guint)3347462463, clock-base=(guint)269400180, seqnum-base=(guint)15205, encoding-params=(string)2 -- Felipe Leal Coutinho </blockquote></div>