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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi <o:p></o:p></p><p class=MsoNormal>On gstreamer 1.4.5, running on Centos 7, I would like to send mpts files, i.e., multi pid mpeg2 transport streams, as rtp using udpsink. I know that filesrc does not provide a clock source, unlike videotest src, when is-live=true, so tried to generate one using multiqueue. Here is my pipeline:<o:p></o:p></p><p class=MsoNormal>Chunk=$(echo "$BlkSize *10^9*$Duration/$FileSize" | bc)<o:p></o:p></p><p class=MsoNormal>filesrc location=$IN_FILE_NAME blocksize=$BlkSize do-timestamp=true ! <o:p></o:p></p><p class=MsoNormal> multiqueue max-size-time=$Chunk max-size-bytes=$BlkSize use-buffering=true low-percent=0 high-percent=100 sync-by-running-time=true ! \<o:p></o:p></p><p class=MsoNormal> tsparse ! \<o:p></o:p></p><p class=MsoNormal style='text-indent:.5in'>udpsink port=$LOCAL_PORT host=$IP<o:p></o:p></p><p class=MsoNormal>The assumption is that over small time periods all pids behave are CBR, and duration of total file read + queue should be the length of the longest video pid, as specified by $Duration. What I am seeing is that $BlkSize is the only parameter that is effecting the transmission time, independently of $Duration. Essentially, transmission time is inversely proportional to $BlkSize.<o:p></o:p></p><p class=MsoNormal> Any ideas or suggestions as how to proceed?<o:p></o:p></p><p class=MsoNormal>Cheers,<o:p></o:p></p><p class=MsoNormal>P.S. Came across this <a href="http://gstreamer-devel.966125.n4.nabble.com/reading-parsing-and-outputting-a-TS-file-synchronously-td4672081.html#a4679263">http://gstreamer-devel.966125.n4.nabble.com/reading-parsing-and-outputting-a-TS-file-synchronously-td4672081.html#a4679263</a>; however, am not sure how would it behave with multiple video pids.<o:p></o:p></p></div></body></html>