<html><head><meta http-equiv="content-type" content="text/html; charset=GB2312"><style>body { line-height: 1.5; }body { font-size: 10.5pt; font-family: 微软雅黑; color: rgb(0, 0, 0); line-height: 1.5; }</style></head><body> <div><span></span><div style="font-family: 微软雅黑, Tahoma; line-height: normal;">I have used rtspsrc to get multi devices's stream. Now I want to sync<span style="font-size: 10.5pt; background-color: window;">it, I want to composite them to a panoramic video</span><span style="font-size: 10.5pt; background-color: window;">. I set the multi stream in the same pipeline. so it share the same</span><span style="font-size: 10.5pt; background-color: window;">pipeline clock. And I set property "ntp-time-source"=3,"buffer-</span><span style="font-size: 10.5pt; background-color: window;">mode"=4,"ntp-sync"=true in the element rtspsrc. in the first a few </span><span style="font-size: 10.5pt; background-color: window;">minutes, the timestamps of stream seem less 40ms, but after a few </span><span style="font-size: 10.5pt; background-color: window;">minutes later the timestamps seem bigger different. what's the </span><span style="font-size: 10.5pt; background-color: window;">problem with it, and how can I do to sync it ?</span></div></div><div style="font-family: 微软雅黑, Tahoma; line-height: normal;"><span style="font-size: 10.5pt; background-color: window;"><br></span></div><div style="font-family: 微软雅黑, Tahoma; line-height: normal;">My pipeline is " rtspsrc -> decodebin -> nvvidconv -> nvvideosink " , here the "nvvidcov" and "nvvideosink" are offerd by NVIDIA . the "nvvidconv" just like videoconvert, and nvvideosink is a sink.</div> <div><br></div><hr style="width: 210px; height: 1px;" color="#b5c4df" size="1" align="left"> <div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>Clancylian@gmail.com</div></div></span></div> </body></html>