<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <style type="text/css" style="display:none;"></style> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> <p>Hi Nicolas,</p> <p><br> </p> <p>Thanks for the prompt reply. I am afraid we don't have option to use RTP plugin directly because we are RTSP server application based on <span>GStreamer's RTSP server library (gst-rtsp-server). Our ultimate goal is to feed raw PCM or LPCM audio into mpegtxmux and rtpmp2tpay. Currently there is no existing plugin to connect raw PCM audio to mpegtxmux.</span></p> <p><span><br> </span></p> <p><span>When you say PCM encoder what kind of plugin is the best to implement? Is there a template that we could use, or can we use appsrc appsink method to achieve this?<br> <br> Thanks again,</span></p> <p><span>Charles<br> </span></p> <p><span><br> </span></p> <p><span></span><br> </p> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Charles Chen - Contractor<br> <b>Sent:</b> Friday, June 30, 2017 2:30:17 PM<br> <b>To:</b> gstreamer-devel@lists.freedesktop.org<br> <b>Subject:</b> Raw audio MPEG TS streaming</font> <div> </div> </div> <div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <span style="color: rgb(0, 0, 0);">Hello,</span></p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <br> </p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <span style="color: rgb(0, 0, 0);">How to generate mpeg TS stream (RTP payload type 33) with raw audio without using any audio encoder such as AAC? I need to feed raw PCM audio into mpegtsmux and RTP </span><span style="color: rgb(0, 0, 0); font-family: Menlo; font-size: 11px;">rtpmp2tpay</span><span style="color: rgb(0, 0, 0);">. I am getting pipeline link error if I:</span></p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <span style="color: rgb(0, 0, 0);"><br> </span></p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> gst-launch-1.0 autoaudiosrc ! audioconvert ! capsfilter caps = "audio/x-lpcm,width=16,channels=2,rate=48000" ! filesink location = "audiofile.raw"</p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <br> </p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <span style="color: rgb(0, 0, 0);">Looks like </span><span style="color: rgb(0, 0, 0);">audio/x-lpcm is not included in the supported media type list:</span></p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(228, 175, 10);"> <a href="https://gstreamer.freedesktop.org/documentation/plugin-development/advanced/media-types.html" id="LPlnk541537" previewremoved="true"><span style="color: rgb(0, 0, 0);">https://gstreamer.freedesktop.org/documentation/plugin-development/advanced/media-types.html</span></a></p> <br> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <span style="color: rgb(0, 0, 0);">Do I have to create a new audio/x-lpcm media type? considering possible issues to link with existing elements.</span></p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <br> </p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <span style="color: rgb(0, 0, 0);">Is it feasible to create my own plugin to convert audio/x-raw to audio/x-lpcm and then link to mpegtsmux?</span></p> <p style="margin-right: 0px; margin-left: 0px; font-size: 12px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(69, 69, 69);"> <br> </p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue'; font-size: 12px;"><span style="color: rgb(0, 0, 0);">Or should I use appsrc or </span></span><font color="#454545" face="Helvetica Neue"><span style="font-size: 12px;"><span style="color: rgb(0, 0, 0);">appsink method to do that?</span></span></font></p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"><font color="#454545" face="Helvetica Neue"><span style="font-size: 12px;"><br> </span></font></p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"><font color="#454545" face="Helvetica Neue"><span style="font-size: 12px;"><span style="color: rgb(0, 0, 0);">Thanks and appreciate any feedback.</span></span></font></p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"><font color="#454545" face="Helvetica Neue"><span style="font-size: 12px;"><br> </span></font></p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"><font color="#454545" face="Helvetica Neue"><span style="font-size: 12px;"><span style="color: rgb(0, 0, 0);">Charles</span></span></font></p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"><br> </p> <p style="margin-right: 0px; margin-left: 0px; line-height: normal;"></p> </div> </div> </body> </html>