Hi, gstreamer-devel:     Seems "gst_basertppayload_push" assigned timestamp to the GstBuffer. Check this function, arnabsamanta? Eric Zhang <div class="gmail_quote">2008/12/2 arnabsamanta <<a href="mailto:arnabsamanta@tataelxsi.co.in">arnabsamanta@tataelxsi.co.in</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi ,        I Am using the rtph264pay plugin in gst-plugins-good-0.10.11.        I am unable to understand the timestamp logic in it.        to my understandings and observations,                we are extracting the timestamp value from the incoming buffer in " gst_rtp_h264_pay_handle_buffer" function                and this value is passed to the "gst_rtp_h264_pay_payload_nal" function as an argument and further assigned to             the outgoing buffer pointer "outbuf".                before doing the " gst_basertppayload_push " of the  "outbuf " , we are calling "gst_rtp_buffer_get_payload "           defined in the gst-plugins-base gstrtpbuffer.c .                when i printed the value of the timestamp of the incoming buffer , it was found to be -1.                Any where in the code flow , am unable to track the portion where the timestamp change is done.        Can anybody kindly help me to point out the part i might have overlooked ?        and thanks for spending your valuable time to read this long mail .  Regards,        ~Arnab The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div>