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<P class=EC_MsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Dear all,</SPAN></FONT></P>
<P class=EC_MsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Now we are writing up a media demux element. It contains one sink pad and two source pads (audio & video). The element is expected to contact to next stage element (codec) in PUSH mode. After processing data in chain() function, we call gst_pad_push to send the audio or video to peer pads in codec elements (H.264 video or AAC). </SPAN></FONT></P>
<P class=EC_MsoNormal style="MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt"><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"><SPAN>a)<FONT face="Times New Roman" size=1><SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></SPAN></SPAN></FONT><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">gst_pad_push returns back with 0 which looks successfully for video data</SPAN></FONT></P>
<P class=EC_MsoNormal style="MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt"><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"><SPAN>b)<FONT face="Times New Roman" size=1><SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></SPAN></SPAN></FONT><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">gst_pad_push always return back with -5 for audio data. </SPAN></FONT></P>
<P class=EC_MsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Actually we use same codes (but names) to finish the above actions, however we got different results (o or -5). Would anyone of you tell me what¡¯s the difference to send out audio/video data to their codec? Thanks a lot!</SPAN></FONT></P>
<P class=EC_MsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> </SPAN></FONT></P>
<P class=EC_MsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Best Regards!</SPAN></FONT></P>
<P class=EC_MsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Shenhong</SPAN></FONT></P></DIV><BR>
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