<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> Hi all,</div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">I have spotted the issue that had been desc</span><span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">ribed in gstreamer-devel list several times. It is about getting grey/green video during first GOP if video is transmitted by RTSP via intermediate server as following:</span></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"><br> </span></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">RTSP server --> gstreamer RTSP server --> RTSP client app.</span><br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"><br> </span></div> <div style="background-color: rgb(255, 255, 255);"><font color="#000000" face="Calibri, Helvetica, sans-serif" size="3">The case can be reproduced on 1.14 (but older version also have the same </font><font color="#000000" face="Calibri, Helvetica, sans-serif"><span style="caret-color: rgb(0, 0, 0);">behavior</span></font><font color="#000000" face="Calibri, Helvetica, sans-serif" size="3">):</font></div> <div style="background-color: rgb(255, 255, 255);"><font color="#000000" face="Calibri, Helvetica, sans-serif" size="3"><br> </font></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);">RTSP server</span><br> <font color="#000000" face="Calibri, Helvetica, sans-serif" size="3"></font></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);">test-launch “( filesrc location=test.264 ! h264parse ! rtph264pay name=pay0 pt=96 )”<br> </span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);"><br> </span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);">RTSP client/server</span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);">test-launch “( rtspsrc location=rtsp://127.0.0.1:8554/test <span style="caret-color: rgb(0, 0, 0); color: rgb(51, 51, 51); font-family: "Segoe UI Web (Cyrillic)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal;">protocols=4</span> ! rtph264depay ! rtph264pay name=pay0 pt=96 )” -p 8555<br> </span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);"><br> </span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);">RTSP client</span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);">gst-launch-1.0 rtspsrc location=rtsp://127.0.0.1:8555/test protocols=4 latency=1000 ! rtph264depay ! h264parse ! decodebin ! videoconvert ! autovideosink sync=false<br> </span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);"><br> </span></div> <div style="background-color: rgb(255, 255, 255);"><span style="caret-color: rgb(0, 0, 0);"><span style="font-family: Calibri, Helvetica, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="background-color: rgb(255, 255, 255);">Here are other threads of the case that I have found:</span></span></span></span><br> </span></div> <div style="background-color: rgb(255, 255, 255);"><a href="http://gstreamer-devel.966125.n4.nabble.com/green-artifacts-at-start-h264-rtsp-tt4668975.html#none" style="caret-color: rgb(0, 0, 0);">https://lists.freedesktop.org/archives/gstreamer-devel/2014-October/049896.html</a><br> </div> <div style="background-color: rgb(255, 255, 255);"><a href="https://lists.freedesktop.org/archives/gstreamer-devel/2011-July/032329.html">https://lists.freedesktop.org/archives/gstreamer-devel/2011-July/032329.html</a><br> </div> <div style="background-color: rgb(255, 255, 255);"><br> </div> <div style="background-color: rgb(255, 255, 255);">Can anybody help me how to get the video stream without loosing first GOP.</div> <div style="background-color: rgb(255, 255, 255);"><br> </div> <div style="background-color: rgb(255, 255, 255);">Best regards,</div> <div style="background-color: rgb(255, 255, 255);">Oleksii</div> </body> </html>