<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=gb2312" http-equiv=Content-Type> <META name=GENERATOR content="MSHTML 8.00.6001.18702"></HEAD> <BODY style="FONT-FAMILY: verdana; FONT-SIZE: 10pt"> <DIV><FONT face=Verdana><FONT size=2>  <DIV><FONT face=Verdana><FONT size=2>Dear sirs,</FONT></FONT></DIV> <DIV><FONT face=Verdana>       I have encounted a problem when i tried to write a gstreamer plugin supporting my specical file format, the attached is my code.</FONT></DIV> <DIV><FONT face=Verdana>       First, i get stream data from file src;then i decode the data using my STREAMPROC_XX lib; if i get a yuv frame, i negotiate with the peer pad, finally i push the frame.</FONT></DIV> <DIV><FONT face=Verdana>  But i always get an err (-4) from the <FONT color=#ff0000>fret = gst_pad_push (dec->srcpad, outbuf);</FONT> code, i check the code carefully, but i don't solve it, so i need your help, many thanks.</FONT></DIV> <DIV> </DIV></FONT></FONT><FONT face=Verdana><FONT size=2> <HR style="WIDTH: 122px; HEIGHT: 2px" SIZE=2> </FONT></DIV> <DIV><FONT color=#c0c0c0><FONT size=2>wangzg@hikvision.com</FONT></DIV> <DIV><FONT size=2>2011-02-23</FONT></FONT></DIV></FONT></BODY></HTML>