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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US> I am now trying to develop a small app to play the H264-encoded network stream.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> I have tried to play the video stream using “play-launch rtspsrc location=://…… ! rtph264depay ! avdec_h264 ! xvimagesink”, and it works very well.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> When I write the C program , I put all the above elements in a pipeline, and linked them all together. Besides, I catch the “pad-added” signal and link the source pad of rtspsrc with sink pad of the h264depay. Everything seems just like the command I have used above. However, when I try to run the program, I got the “Error: internal data flow error ”. Then I tried to set the pipeline clock, but the error is still there.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> Can anyone give me some help on this? <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> Thinks very much!!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>With Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Gavin<o:p></o:p></span></p></div></body></html>